JP5255102B2 - Deodorizing device - Google Patents

Description

The present invention relates to a deodorizing apparatus using a photocatalyst.

  For example, ventilation facilities are provided in large-scale commercial facilities such as large shopping malls, and apartment buildings such as office buildings and condominiums. Many exhaust gases containing odorous components exist in such exhaust gas. For example, exhaust gases from kitchen facilities such as restaurants provided in large-scale commercial facilities contain odor components such as various cooking odors.

  And according to the recent increase in environmental awareness, it is becoming popular to degas the gas containing such an odor component using a deodorizer and then release it to the atmosphere.

  The deodorizing device used for such applications uses an adsorption type using activated carbon, a neutral type using a neutralizing agent, a bio type using microorganisms, or a photocatalyst. There are various types such as photocatalytic type, but these technologies have their merits and demerits.

  Among these, the photocatalytic deodorization apparatus has attracted attention in recent years because it has high deodorization efficiency, facilitates simplification and downsizing of equipment, and has low running cost.

  In short, a photocatalytic deodorization device is obtained by irradiating light (mainly ultraviolet rays) from a light source to a photocatalytic filter formed by baking and fixing titanium oxide (Ti ○ 2) powder as a photocatalyst on the surface of a ceramic porous body. The organic odor component contained in the gas that has passed through the photocatalytic filter is decomposed and removed into water and carbon dioxide by a photocatalytic reaction (oxidation / reduction reaction) (for example, Patent Documents) 1).

JP 2003-230806 A

  However, the above-described photocatalytic deodorizer has the following problems.

  That is, for example, the exhaust gas from the above-described kitchen facility may contain a soil component (oil stain or the like) such as fat and oil mist as one of the odor components or as one of the odor components. When such dirt components such as fat and oil mist adhere to and adhere to the surface of the photocatalytic filter, the deodorizing performance is deteriorated, so that it is necessary to remove the dirt component from the photocatalytic filter.

  As a means for removing dirt components fixed to the photocatalyst filter, the photocatalyst filter is conventionally removed from the deodorizing device, transported to the outside of the deodorizing device, immersed in a cleaning liquid mainly composed of a neutral detergent, and then photocatalyst. Since the filter needs to be rinsed with water, dried in the sun for a certain period of time (sunshine treatment), dried, and then re-installed in the deodorizer after drying, maintenance and maintenance of the photocatalytic filter is time-consuming. And cost.

  Further, during the maintenance of the photocatalyst filter as described above, it has been necessary to stop the operation of the deodorizing apparatus or to operate with an alternative photocatalyst filter depending on the situation. Furthermore, if the photocatalyst filter removed from the deodorizing device is dropped for maintenance, the expensive photocatalyst filter may be damaged or damaged. .

  Such adhesion of the dirt component to the photocatalytic filter mainly occurs on the windward surface of the photocatalytic filter, the surface opposite to the surface irradiated with light from the light source, or the like.

  Therefore, it is conceivable to install a collection filter on the windward side of the photocatalyst filter so that the dirt component can be collected in advance by the collection filter. It is difficult to prevent the contamination from reaching at all. Further, since the dirt component also adheres to the repair filter, maintenance of the repair filter for removing the adhered dirt component is required.

  Furthermore, since the above light source is structurally covered by the photocatalytic filter, it is not possible to confirm the burnout state of the light source unless at least the photocatalytic filter is removed.

  Therefore, in view of the above points, an object of the present invention is to improve the maintainability of the deodorizing apparatus comprehensively and make it easier to use.

The present invention relates to a partition for partitioning at least an inlet portion of the raw gas containing odor components, the inside of the deodorizing device a box body having an outlet portion of the treated gas to the inlet side and the outlet side, the untreated gas In a deodorizing apparatus equipped with a deodorizing module having a photocatalytic filter that passes through and a light source that causes a photocatalytic reaction to the photocatalytic filter ,
The deodorizing module is provided with a photocatalytic unit formed by integrating a plurality of the photocatalytic filters,
Maintenance means for performing maintenance on the photocatalytic filter is provided,
As a maintenance means of the photocatalyst filter, a reversing mechanism is provided for reversing the front and back of the plurality of photocatalytic filters for each photocatalyst unit at a time,
The reversing mechanism is a connecting member that rotatably connects the deodorizing module and the photocatalytic unit .
In addition to the above, on the windward side of the deodorization module, a collection filter capable of collecting dirt components contained in the untreated gas is installed with an interval from the deodorization module,
Maintenance means for performing maintenance on the collection filter is provided,
As a maintenance means for the collection filter, on the windward side of the collection filter, a collection filter cleaning device capable of removing dirt components attached to the collection filter by washing is provided.
The collection filter cleaning apparatus includes a foam making device for foaming a cleaning liquid and a cleaning nozzle for injecting the cleaning liquid foamed by the foam making device to the collection filter.
In the above, the collection filter is installed in a zigzag shape inside the deodorization device box,
You may install the cleaning nozzle of the said collection filter washing | cleaning apparatus so that each surface of the collection filter installed in the zigzag shape may be opposed .

According to the present invention, a photocatalytic unit formed by integrating a plurality of photocatalytic filters is provided, and the inversion mechanism of the photocatalytic filter is a connecting member that rotatably connects the deodorizing module and the photocatalytic unit. Thus, with the simplest configuration, a plurality of photocatalytic filters can be easily and reliably reversed at once.
In addition, by installing the collection filter at a distance from the deodorizing module, the cleaning liquid will not be adversely affected by the photocatalytic filter when the collection filter is cleaned by the collection filter cleaning device. Can be. In addition, by disposing the collection filter at the above-described interval with respect to the deodorization module, dirt components that have passed through the collection filter do not immediately adhere to the photocatalyst filter. The amount of component adhesion can be reduced. In addition, since the above-described interval exists, maintenance of the photocatalytic filter and the deodorizing module can be performed without removing the collection filter.
In addition, the collection filter cleaning device includes a foam maker and a cleaning nozzle, so that the cleaning liquid is foamed by the foam maker and the foamed cleaning liquid is sprayed from the cleaning nozzle to the collection filter. It is possible to efficiently remove dirt components such as fat and oil mist adhering to the cleaning nozzle repair filter .
And, by installing the collection filter in a zigzag shape, increasing the collection area of the collection filter, improving the collection efficiency for dirt components, and reducing the pressure loss when untreated gas passes Can do. Moreover, the cleaning nozzle of the collection filter cleaning device is installed so as to face each surface of the collection filter installed in a zigzag shape, so that the cleaning liquid can hardly reach the photocatalytic filter directly.

It is a figure (top view of a deodorizing module) which shows the principle of the deodorizing apparatus in this invention. It is a plane sectional view showing the whole deodorizing device in this invention. It is a sectional side view along the AA arrow direction of FIG. It is a perspective view which shows the internal structure of the deodorizing module provided in FIG. It is a perspective view which shows the state in which the photocatalyst filter etc. were attached to the deodorizing module of FIG. It is a disassembled perspective view which shows the state which attaches a collection filter to the deodorizing module of FIG. It is a figure (top view of a deodorizing module) which shows the maintenance means (double-sided attachment part) of Example 1. FIG. It is a disassembled perspective view of the photocatalyst unit which concerns on Example 2. FIG. It is a disassembled perspective view of the deodorizing module provided with the photocatalyst unit of FIG. It is a disassembled perspective view which shows the state which attaches a collection filter to the deodorizing module of FIG. It is a disassembled perspective view which shows the state which attached the collection filter to the deodorizing module of FIG. It is a front view of the deodorizing module which shows the maintenance means (inversion mechanism) which concerns on Example 3. FIG. It is a side view of FIG. 12 which shows the state which reverses a photocatalyst unit. It is the elements on larger scale of FIG. FIG. 15 is a top view of FIG. 14. It is a top view of the photocatalyst unit before inversion. It is a top view of the deodorizing apparatus which shows the maintenance means (collection filter washing | cleaning apparatus) which concerns on Example 4. FIG. It is a side view of FIG. It is a side view of the nozzle part for washing | cleaning in the collection filter washing | cleaning apparatus of FIG. It is the elements on larger scale around the drain outlet in the water tray of FIG. FIG. 18 is a system diagram of a peripheral portion of a cleaning liquid generation device in the collection filter cleaning device of FIG. 17. It is a top view which shows the modification of FIG. It is a front view of the deodorizing module which shows the maintenance means (ball piece detection part) which concerns on Example 5. FIG. It is the schematic sectional drawing which looked at FIG. 23 from the side.

  The deodorizing apparatus according to the present invention is provided for ventilation equipment such as large-scale commercial facilities such as large shopping malls, and apartment buildings such as office buildings and apartments. However, the deodorizing device can be attached to ventilation equipment of various facilities other than those described above or exhaust equipment other than the ventilation equipment as long as it is a facility through which gas containing an odor component is passed.

  Hereinafter, the principle and outline of the deodorizing apparatus described above will be described.

(About the principle of the deodorizing device)
FIG. 1 is a diagram illustrating the principle of the deodorizing apparatus 1.

  The deodorizing apparatus 1 includes a photocatalytic filter 2 that passes a gas G containing at least an odor component, and a light source 3 that emits light toward one surface of the photocatalytic filter 2.

  A gas G containing at least an odor component (untreated gas G1) is passed through the photocatalyst filter 2 and light from the light source 3 is irradiated on one side of the photocatalyst filter 2 to thereby generate the gas G by a photocatalytic reaction (oxidation / reduction reaction). The odor component contained in can be deodorized.

  By doing in this way, the odor component contained in gas G can be deodorized efficiently. The gas G (deodorized gas G2) from which the odor component has been deodorized through the photocatalytic filter 2 is then released to the atmosphere.

  Here, in the supplementary explanation, the photocatalyst filter 2 is such that the powder of titanium oxide (Ti2) serving as the photocatalyst is baked and fixed on the surface or inside of the ceramic porous body through which the gas G can pass. The In addition to the photocatalyst, the photocatalyst filter 2 can appropriately carry other catalyst components such as silver according to the kind of odor component. Further, the odor component is decomposed into water and carbon dioxide by the photocatalytic reaction.

  Further, as the light source 3, one that emits ultraviolet light, one that emits light including ultraviolet light, or the like is used. As the light source 3, for example, various types such as an ultraviolet tube (fluorescent tube type), an ultraviolet lamp (bulb type), and an ultraviolet light emitting diode can be used.

(Overall configuration of deodorizing apparatus 1)
FIG. 2 is a plan sectional view showing the overall configuration of the deodorizing apparatus 1 described above, and FIG. 3 is a side sectional view (A-A section) thereof. The deodorizing apparatus 1 described above includes, for example, as shown in FIGS. 2 and 3, a deodorizing apparatus box having an inlet 5 for a gas G (untreated gas G1) and an outlet 6 for a gas G (deodorized gas G2). The body 7 and a partition 8 that partitions the inside of the deodorizing device box 7 into a space on the inlet portion 5 side and a space on the outlet portion 6 side are provided.

  The photocatalytic filter 2 and the light source 3 are installed in the partition 8 (not shown in FIGS. 2 and 3).

  Here, when the above supplementary explanation is given, the above-described deodorizing device box 7 is a hollow bowl-shaped casing. In this case, it is a rectangular parallelepiped or cubic building having a ceiling wall 7a and a bottom wall 7b, a pair of side walls 7c and 7d, a front wall 7e and a back wall 7f. However, the shape and size of the deodorizing device box 7 can be appropriately changed according to the processing capacity of the deodorizing device 1 and the situation of the installation location.

  The inlet portion 5 for the untreated gas G1 is formed at the center of the front wall 7e, and the outlet portion 6 for the deodorized gas G2 is formed at the center of the back wall 7f.

  Furthermore, openings 7g and 7h for maintenance are formed in the side walls 7c and 7d of the deodorizing device box 7, respectively. Opening and closing doors 9 are provided in the openings 7g and 7h so as to be opened and closed.

  Further, the partition 8 described above has a partition shape. This partition wall-shaped partition 8 may be provided in parallel to the front wall 7e and the back wall 7f. In this case, in order to increase the surface area (processing area), the partition wall-like partition 8 is arranged in parallel with the side walls 7c and 7d. The pair of treated surface portions 8a and 8b, the front surface portion 8c for connecting and closing the side portions on the inlet portion 5 side of the pair of treated surface portions 8a and 8b, and the outlet portion 6 of the pair of treated surface portions 8a and 8b. And a pair of rear surface portions 8d that are closed by connecting the side portions on the side and the vicinity of the outlet portion 6 of the side walls 7c and 7d, respectively.

  As described above, gas flow paths 11a and 11b communicating with the inlet portion 5 are formed in the deodorizing device box 7 between the processing surface portions 8a and 8b and the side walls 7c and 7d, respectively.

  In this case, the front surface portion 8c is disposed substantially opposite to the inlet portion 5, thereby reducing the flow rate of the untreated gas G1 entering from the inlet portion 5 and allowing the untreated gas G1 to flow into the gas flow paths 11a and 11b. It has a function as a distributable current plate. Further, the back surface portion 8d has a function as a rectifying plate capable of evenly distributing to the photocatalytic filter 2 by stopping the flow of the untreated gas G1 in the gas flow paths 11a and 11b.

  Further, the above-described hand front surface portion 8c and the pair of back surface portions 8d are installed vertically between the ceiling wall 7a and the bottom wall 7b, and are disposed in parallel with the front wall 7e and the back wall 7f. Further, the opening / closing door 9 described above is provided at a position substantially opposite to each processing surface portion 8a, 8b.

  The processing surface portions 8a and 8b described above are not necessarily arranged in parallel to each other, and can be arranged in a non-parallel state. For example, the processing surface portions 8a and 8b are arranged in a substantially V shape (V shape opened on the inlet portion 5 side or V shape opened on the outlet portion 6 side) when viewed from above, or V It is possible to further improve the processing area by arranging the letters in a substantially W shape with two letters (see, for example, FIG. 17) or arranging them in other shapes. In these cases, at least one of the hand front surface portion 8c and the pair of back surface portions 8d described above may not be provided, or may be narrowed, or the installation position and the number of installation may be changed or increased. Can do.

(Arrangement of photocatalytic filter 2 and light source 3)
As shown in FIG. 1, a pair of the above-described photocatalytic filters 2 are provided so as to sandwich the light source 3. In the case of FIGS. 2 and 3, for example, a pair of photocatalytic filters 2 may be installed on both sides of the partition 8, and the light source 3 may be installed inside the partition 8.

  By adopting such a sandwich-like structure, light from the light source 3 is transmitted to the inner surfaces of the pair of photocatalytic filters 2 (the leeward surface of the leeward photocatalytic filter 2 and the leeward photocatalytic filter 2. It is directly irradiated to the windward surface.

  And by arrange | positioning the photocatalyst filter 2 and the light source 3 in this way, deodorizing of the gas G is performed in two steps, and while improving the deodorizing efficiency, it becomes possible to achieve size reduction of the apparatus.

(About deodorizing module)
The photocatalytic filter 2 and the light source 3 described above can be directly attached to the partition 8, but are modularized as shown in FIG. 1 (deodorizing module 15), and as shown in FIGS. 8 can be indirectly attached.

  The deodorizing module 15 described above is a single unit by attaching the light source 3 and the photocatalyst filter 2 disposed so as to sandwich the light source 3 to a frame body 16 (module frame, see FIG. 4) serving as a deodorizing module body. The deodorization by the photocatalytic reaction can be performed.

  The deodorization module 15 is designed and standardized or standardized in a size and shape so that high deodorization efficiency is obtained, the cost is kept low, and the handling is easy. In this case, for example, the deodorizing module 15 has a rectangular shape having a length L and a width W of 650 mm and a thickness T of 90 mm.

  The deodorizing module 15 is detachably attached to the partition 8 described above. That is, the above-mentioned deodorizing module 15 is attached to each processing surface 8a, 8b of the partition 8 as a single or a plurality. In this case, the deodorizing module 15 is arranged in a grid pattern, for example, three in the lateral direction and three in the vertical direction, for a total of nine for each processing surface portion 8a, 8b. However, the size and shape of the deodorizing module 15 and the number and arrangement of the deodorizing module 15 with respect to the partition 8 are not limited thereto.

  On the other hand, each processing surface part 8a, 8b of the partition 8 is provided with a shelf frame member 21 for detachably supporting and fixing the deodorizing module 15. The shelf frame member 21 can be fitted and fixed by fitting the deodorizing module 15. The shelf frame member 21 is installed vertically between the ceiling wall 7a and the bottom wall 7b of the deodorizing device box 7. Further, the above-described hand front surface portion 8 c and back surface portion 8 d are connected to both side portions of the shelf frame member 21, respectively.

  As shown in FIG. 4, the frame 16 of the deodorizing module 15 described above has a pair of side frame portions 16a and 16b extending in the vertical direction, and a pair of lower frame portion 16c and upper frame portion 16d extending in the horizontal direction. It has a rectangular shape.

  In the light source 3, one or a plurality (in this case, five) of ultraviolet tubes extending in the horizontal direction are installed between the pair of side frame portions 16a and 16b with a space in the vertical direction. However, the number of installed light sources 3 is not limited to this.

  A socket for the light source 3 is accommodated and installed in the pair of side frame portions 16 a and 16 b of the frame body 16. A stabilizer for the light source 3 is accommodated and installed in the lower frame portion 16c or the upper frame portion 16d.

  Further, as shown in FIG. 5, the photocatalytic filter 2 is a rectangular plate having a uniform thickness. In this case, the photocatalytic filter 2 can cause a photocatalytic reaction over the entire thickness by allowing the light from the light source 3 to be used most efficiently, that is, the light penetrates into the inner depth. Such a thickness is preferable. In addition, the photocatalytic filter 2 needs to have a thickness that is difficult to crack or break. For this reason, the photocatalytic filter 2 is relatively thick (about 20 mm thick) to the extent that light from the light source 3 can reach the opposite surface.

  The photocatalyst filter 2 attached to each surface of the frame body 16 is a single sheet that is approximately the same size as the frame body 16 or a combination of multiple sheets that is approximately the same size as the frame body 16. can do. In this case, in consideration of manufacturing costs and ease of handling, a total of four photocatalytic filters 2 arranged in a grid pattern, for example, two in the horizontal direction and two in the vertical direction are used. Has been. However, the size and thickness of the photocatalytic filter 2, the number of installed units, the arrangement, and the like are not limited to the above.

(About collection filter)
When the gas G is accompanied by a dirt component (oil dirt or the like) such as fat and oil mist, the filter 18 for collecting the dirt component as shown in FIG. Can optionally be provided.

  In this case, a grease filter capable of collecting oil and fat mist (fine oil droplets) as a dirt component is used for the collection filter 18.

  The collection filter 18 described above includes, for example, a filter main body 18a formed by weaving fibrous aluminum into a cloth shape, and is capable of collecting a large amount of oil and fat mist contained in the untreated gas G1. . A frame member 18b made of a metal that is not corroded by the untreated gas G1 is attached to the outer periphery of the filter body 18a, or punching made of the same metal as described above on one side or both sides. By attaching a face material such as a plate or expanded metal or an intermediate beam member, shape retention and handling properties can be improved.

  When the gas G is not accompanied by dirt components such as fat and oil mist, or dirt components such as fat and oil mist can be removed almost completely on the upstream side of the ventilation equipment or exhaust equipment provided with the deodorizing device 1. In the case of having a removal facility, the collection filter 18 need not be particularly provided.

  And by providing the collection filter 18 on the windward side of the photocatalyst filter 2 in this way, it becomes possible to collect in advance the dirt component accompanying the gas G with the collection filter 18, Therefore, the amount of the dirt component reaching the photocatalyst filter 2 can be greatly reduced, and the adhesion of the dirt component to the photocatalyst filter 2 can be reduced.

(About operation of deodorizing device 1)
The deodorizing apparatus 1 having the above-described configuration operates as follows.

  That is, the untreated gas G1 entering the inside of the deodorizing device box 7 from the inlet portion 5 of the deodorizing device 1 hits the hand front surface portion 8c of the partition 8 and is divided into two parts and flows along the hand front surface portion 8c. After the direction is changed by 90 degrees by hitting the side walls 7c, 7d, the gas flows into the gas flow paths 11a, 11b, and flow into the gas flow paths 11a, 11b along the processing surface portions 8a, 8b.

  And all the untreated gas G1 which flows through gas flow path 11a, 11b will collide with subsequent untreated gas G1 and will be turbulent when it reaches the back surface part 8d, and this turbulent flow will flow into gas flow path 11a, 11b whole. After being diffused and passing through the deodorizing modules 15 provided on the processing surface portions 8a and 8b in an almost uniform state, the deodorizing modules 15 are changed to the deodorizing gas G2 by the photocatalytic reaction, and then the deodorizing device box 7 is partitioned. The air enters the leeward space from 8 and is discharged to the outside through the exit 6.

  At this time, the untreated gas G1 passes through a collection filter 18 provided on the windward side of the deodorizing module 15, so that most of dirt components such as fat and oil mist accompanying the untreated gas G1 are collected. The odorous components are decomposed and removed by passing through a total of eight photocatalytic filters 2 illuminated by the light source 3, four on the leeward side and four on the leeward side, and deodorized as described above. be changed.

  In addition, the above is a matter common in the following each Example.

  And the maintenance means (or maintenance apparatus) for performing the maintenance with respect to at least 1 of the above-mentioned photocatalyst filter 2, the collection filter 18, and the light source 3 is provided with respect to the deodorizing apparatus 1 of such a structure. Like that.

  The maintenance means will be described below with reference to each embodiment.

  FIGS. 1-7 shows the deodorizing apparatus 1 concerning Example 1. FIG.

  In this embodiment, as the maintenance means, as shown in FIG. 7, when the dirt component adheres to the surface of the photocatalytic filter 2 opposite to the surface irradiated with light (dirt fixing portion K), the dirt component is removed. A double-sided attachment portion 22 that can be attached with the photocatalytic filter 2 turned upside down so that the fixed surface faces the light source 3 side is provided.

  In the case of this embodiment, the deodorizing module 15 is provided with a double-sided attachment portion 22 that allows the four photocatalytic filters 2 to be attached and detached and turned upside down one by one. Thus, by making the photocatalyst filter 2 attachable / detachable and reversing front and back one by one, if the photocatalyst filter 2 is damaged, only the damaged photocatalyst filter 2 can be removed and replaced.

  The double-sided mounting portion 22 may be provided at least for the photocatalytic filter 2 on the windward side. In this case, the double-sided mounting portion 22 is provided for both the photocatalytic filter 2 on the windward side and the leeward side. I am trying to provide it.

  For this purpose, first, the photocatalytic filter 2 is configured in substantially the same shape so as to be mounted in the same manner even if the front and back are reversed, that is, to be the double-sided mounting portion 22 (both sides are the same shape member).

  In addition to or instead of the above, as shown in FIGS. 4 and 5, the photocatalyst filter 2 can be easily attached to and detached from the frame 16 (both sides) of the deodorizing module 15 and turned upside down. A double-sided attachment portion 22 is provided. In this case, the double-sided attachment part 22 can be attached / detached and reversed upside down by sliding the photocatalytic filter 2 (double-sided attachment slide holding part).

  For this purpose, first, the outer edge portion attaching portion 23 to which the edge portion (outer edge portion) along the frame body 16 in the single or plural photocatalytic filters 2 can be attached is provided.

  The outer edge attaching portion 23 includes a downward U-shaped (or C-shaped) upper edge locking member 23 a attached from the upper side to the upper frame portion 16 d of the frame body 16, and a lower frame of the frame body 16. And an upward U-shaped (or C-shaped) lower edge locking member 23b attached to the portion 16c from below. Furthermore, it can also be provided with a pair of box-shaped cover members 23c and 23d attached to the pair of side frame portions 16a and 16b of the frame body 16 so as to be detachable from the side. The box-shaped cover members 23c and 23d have openings that can be fitted to the frame body 16 on the side frame portions 16a and 16b.

  The upper edge locking member 23a, the lower edge locking member 23b, and the cover members 23c and 23d are equal to or greater than the sum of the thickness of the frame body 16 and the thickness of two photocatalytic filters 2 respectively. It has a slightly wider width.

  Accordingly, the upper edge portion of the photocatalytic filter 2 (located on the upper side) is accommodated between the both side surfaces of the upper frame portion 16d and the periphery of both arm portions extending downward of the upper edge portion locking member 23a. A pair of upper edge locking portions 24a that can be held and slid in the lateral direction are formed.

  Further, the lower edge portion of the photocatalytic filter 2 (located on the lower side) is accommodated between both side surfaces of the lower frame portion 16c and the periphery of both arms extending upward from the lower edge portion locking member 23b. A pair of lower edge locking portions 24b that can be locked and held and are slidable in the lateral direction are formed.

  Further, a pair of side edge locking portions that accommodate and hold the outer edge of the photocatalytic filter 2 are formed between both side surfaces of the side frame portions 16a and 16b and the cover members 23c and 23d. The

  And the above-mentioned upper edge part latching | locking part 24a and lower edge part latching | locking part 24b guide the upper edge part and lower edge part to which a photocatalyst filter 2 respond | corresponds slidably and detachably to a side. It becomes a groove, and the cover members 23 c and 23 d serve as side edge pressings for pressing the outer edge of the photocatalytic filter 2. Thereby, the outer edge part attaching part 23 removes the box-shaped cover members 23c and 23d, and makes the photocatalyst filter 2 sideways along the guide groove by the upper edge part latching part 24a and the lower edge part latching part 24b. By pulling out, it becomes a double-sided attachment part 22 (double-sided attachment slide holding part) that can be reversed and attached. The cover members 23c and 23d can be omitted depending on circumstances.

  Further, when a plurality of photocatalytic filters 2 are provided, an inner edge attaching portion that can attach and detach and invert the edge (inner edge) of the photocatalytic filter 2 located in the opening of the frame 16 with respect to the frame 16. 26 is provided.

  The inner edge mounting portion 26 includes an inner member 26a (an inner surface mounting member) and an outer member 26b (an inner side mounting member) that are capable of sandwiching and fixing adjacent edge portions (inner edge portions) of the plurality of photocatalytic filters 2 simultaneously from both sides. The outer cross member has an outer surface side mounting member).

  Then, the inner member 26a is fixed to the frame body 16 and the outer member 26b is fixed to the inner member 26a, so that the photocatalytic filter 2 is sandwiched between the outer member 26b and the inner member 26a. 16 can be fixed.

  The inner member 26a and the outer member 26b are obtained by combining the vertical beam members 27a and 27b and the horizontal beam members 28a and 28b in shapes corresponding to the arrangement of the photocatalytic filter 2, respectively. In this case, since the four photocatalytic filters 2 are arranged in a grid pattern, the inner member 26a and the outer member 26b are arranged in accordance with the arrangement of the inner edge portions of the four photocatalytic filters 2, respectively. One vertical crosspiece member 27a, 27b and one horizontal crosspiece member 28a, 28b are cross-shaped and intersected at an intermediate portion thereof to form a cross shape. However, the shapes and configurations of the inner member 26a and the outer member 26b are not limited thereto.

  The vertical beam members 27a and 27b and the horizontal beam members 28a and 28b each have a hat-shaped cross section having concave groove portions M1 and N1 at the width center portion and flange-shaped step portions M2 and N2 at both width side portions. It is said that.

  Then, the inner member 26a and the outer member 26b face each other with the necessary tightening margins between the groove portions M1 and N1 of the vertical beam members 27a and 27b and the horizontal beam members 28a and 28b, respectively. Thus, an edge sandwiching portion 29 capable of sandwiching and fixing the inner edge of the photocatalytic filter 2 is formed between the flange-shaped stepped portions M2 and N2. By this edge portion sandwiching portion 29, there is no gap between the inner edge portion attaching portion 26 and the inner edge portion of the photocatalytic filter 2, and the gas G is prevented from leaking. That is, the edge pinching portion 29 functions as a leak preventing means for the inner edge portion. In addition, by the above, the edge part of the adjacent photocatalyst filter 2 is spaced apart and installed in the space | interval equal to the groove width of flange-shaped level | step-difference part M2, N2.

  Further, both end portions of the vertical beam member 27a and the horizontal beam member 28a of the inner member 26a are extended so as to overlap the frame body 16, and this extended portion is fastened and fixed to the frame body 16 using a fastening fixture such as a screw. Is done. By this fastening and fixing, there is no gap between the outer edge portion mounting portion 23 and the outer edge portion of the photocatalytic filter 2, and the leakage of the gas G is prevented. That is, the above-described fastening fixture functions as a leak preventing means for the outer edge portion.

  Further, between the inner member 26a and the outer member 26b, there are provided a screw hole 27d and a screw insertion hole 27e that can be fastened and fixed using a fastening fixture 31 such as a screw. The screw hole 27d may be a fastening member such as a nut as a screw insertion hole.

  In this case, the vertical beam members 27a and 27b are formed to be relatively wider than the horizontal beam members 28a and 28b, and the above-described screw hole 27d and screw insertion hole 27e are formed to have a wide width. One or a plurality of 27a and 27b are provided. However, the horizontal beam members 28a and 28b may be wider than the vertical beam members 27a and 27b, and the screw holes 27d and the screw insertion holes 27e may be provided.

  And the edge pinching part 29 of the crosspiece members 28a and 28b is designed to move the lower edge part and the upper edge part of the photocatalyst filter 2 located above and below from each other by loosening the fastening fixtures 31 such as screws. It becomes a guide groove to be slidable and guided toward the direction. As a result, the inner edge mounting portion 26 becomes a double-sided mounting portion 22 (double-sided mounting slide holding portion) that can be reversed and attached by pulling out the photocatalytic filter 2 in the lateral direction along the guide groove.

(About the collection filter 18)
In the case of this embodiment, the above-described collection filter 18 is detachably attached directly to the windward surface of the deodorizing module 15 as shown in FIGS. As a result, the collection filter 18 is arranged adjacent to (or in close contact with) the windward photocatalytic filter 2 with a slight gap.

  In this case, the collection filter 18 has substantially the same shape (substantially rectangular shape) as the windward surface of the deodorizing module 15 and has the same or slightly smaller size. In this case, the collection filter 18 has a thickness of about 3 to 5 mm (up to 7 mm at the center). However, the shape, size, and thickness of the collection filter 18 are not limited thereto.

  The collection filter 18 is fitted and held inside four edge holding members 34 provided in a substantially rectangular shape along the edge of the windward surface of the frame 16 of the deodorizing module 15. Is done. The edge holding member 34 is attached to the above-described upper edge locking member 23a, lower edge locking member 23b, and cover members 23c and 23d.

  The collection filter 18 is fixed to the edge holding member 34 by a fixing member. As the above-described fixing member, the edge holding member 34 can be provided with a locking portion 34 a that can lock and hold the edge of the collection filter 18. Alternatively, the edge holding member 34 itself can be the locking portion 34a. In addition, as a fixing member, a rotation lock 34 b can be provided on a portion other than the edge holding member 34 or the edge holding member 34 of the frame 16. The number and arrangement of the locking portions 34a and the rotation lock 34b described above are not limited to those shown in the figure, and can be provided in appropriate combinations.

  (Operation) The operation of this embodiment will be described below.

  First, “attachment of the photocatalytic filter 2 to the deodorizing module 15” will be described.

  In order to attach the four photocatalyst filters 2 to the frame body 16, first, the frame body 16 to which the inner member 26a is attached is laid horizontally, and the upper end portions of the two photocatalyst filters 2 and 2 are positioned at the upper edge. The lower end portion of the inner member 26a is placed on the flange-like stepped portion N2 of the inner member 26a, and one side end portion of the two photocatalytic filters 2 and 2 is connected to the inner end portion 26a. The member 26a is placed on the flange-like stepped portion M2 of the vertical beam member 27a. Similarly, the lower ends of the remaining two photocatalyst filters 2 and 2 are inserted into the lower edge locking portion 24b, and the upper ends thereof are placed on the flange-like stepped portion N2 of the horizontal rail portion 28a of the inner member 26a. Then, one side end portion of the two photocatalytic filters 2 and 2 is placed on the flange-like stepped portion M2 of the vertical beam member 27a of the inner member 26a.

  Next, after positioning the outer member 26b on the four photocatalyst filters 2 so as to overlap with the inner member 26a, a fastening fixture 31 such as a screw is passed through the screw insertion hole 27e provided in the outer member 26b. Screw into the screw hole 27d of the member 26a. Then, the flange-shaped stepped portion M2 of the vertical beam member 27b of the outer member 26b presses the inner edges of the four photocatalytic filters 2 from the outside, and the flange-shaped stepped portion N2 of the horizontal beam member 28b of the outer member 26b. However, the lower edges of the upper two photocatalytic filters 2 and 2 are pressed from the outside, and the upper edges of the lower two photocatalytic filters 2 and 2 are pressed from the outside. The filter 2 is fixed to the frame 16 in a sandwiched state.

  In this case, when the fastening force by the fastening fixture 31 is slightly weakened, the upper two photocatalytic filters 2 and 2 have an upper edge locking portion 24a and flange-like steps of the inner member 26a and the outer member 26b. The upper and lower edges can be moved laterally while being guided by the edge sandwiching part 29 between the parts N2, and are removed by sliding laterally with respect to the frame body 16, and attached by being reversed. Is possible.

  Similarly, the lower two photocatalytic filters 2 and 2 are also vertically moved to the lower edge portion locking portion 24b and the edge pinching portion 29 between the flange-like stepped portion N2 of the inner member 26a and the outer member 26b. The edge portion can be moved in the lateral direction while being guided, and can be detached by sliding in the lateral direction with respect to the frame body 16 and can be attached by being reversed.

  Here, as described above, the light (ultraviolet rays) from the light source 3 is directly applied to the surface (inner surface) of the photocatalytic filter 2 on the light source 3 side. And the photocatalyst filter 2 is made comparatively thick so that a photocatalytic reaction may be obtained even inside the photocatalyst filter 2. Therefore, the light from the light source 3 hardly reaches the outer surface side of the photocatalytic filter 2.

  On the other hand, for example, the untreated gas G1 discharged from a kitchen facility of a restaurant often contains a large amount of dirt components such as fat and oil mist that are also odor components. Such oil and fat mist is a soil component that requires a certain amount of time for decomposition and removal even by a photocatalytic reaction.

  Therefore, as described above, the collection filter 18 is provided on the windward side of the deodorizing module 15 and most of the oil and fat mist is collected in advance by the collection filter 18. It is difficult to completely remove oil and fat mist.

  Therefore, the remaining fat and oil mist that has not been collected by the collection filter 18 adheres mainly to the outer surface side of the photocatalytic filter 2 that first contacts the untreated gas G1.

  Therefore, when such a deodorizing process of the untreated gas G1 is performed, the decomposition amount of the oil mist adhering to the outer surface side of the four photocatalytic filters 2 on the windward side cannot follow the amount of adhesion, and the oil mist gradually increases. In other words, a sticking phenomenon occurs in which the dirt sticking portion K is accumulated on the outer surface side of the photocatalytic filter 2. When such a sticking phenomenon occurs, the contact area between the photocatalyst filter 2 and the odor component gradually decreases, so that the deodorization efficiency of the photocatalyst filter 2 gradually decreases. For this reason, the photocatalytic filter 2 in which the sticking phenomenon has progressed to some extent needs to be regenerated to return (regenerate) the deodorizing efficiency to the original level.

  Therefore, “regeneration of the photocatalytic filter 2” will be described.

  In order to regenerate the photocatalytic filter 2, the door 9 provided on the side walls 7c and 7d of the deodorizing device box 7 is opened, and the deodorizing module 15 is taken out from the inside of the deodorizing device box 7 through the openings 7g and 7h. . Then, the collection filter 18 is removed from the deodorization module 15, and the windward photocatalytic filter 2 is taken out from the deodorization module 15 from which the collection filter 18 has been removed.

  For this purpose, first, the left and right cover members 23c, 23d of the deodorizing module 15 were removed, and the outer edge of the photocatalytic filter 2 was opened, and then the windward side fastening fixture 31 was loosened, resulting in a dirt fixing portion K. The four photocatalytic filters 2 on the windward side are slid laterally along the upper edge locking portion 24a, the lower edge locking portion 24b, and the edge clamping portion 29 and taken out of the deodorizing module 15.

  Next, as shown in FIG. 7, the taken-out photocatalyst filter 2 is turned upside down so that the surface on which the dirt adhering portion K is formed faces the inner surface side where the light source 3 is located. It slides in the lateral direction along the part locking part 24 a, the lower edge part locking part 24 b, and the edge clamping part 29 and is inserted into the deodorizing module 15.

  And if the side edge part of the photocatalyst filter 2 is positioned between the flange-shaped level | step-difference part M2 of the outer member 26b and the inner member 26a, the fastening fixture 31 will fully be screwed in and four photocatalyst filters 2 will be framed. 16, the cover members 23 c and 23 d are attached to the frame body 16, and the deodorizing module 15 is assembled to the original state.

  When the deodorizing apparatus 1 is operated, the light from the light source 3 is directly and sufficiently applied to the surface of the photocatalyst filter 2 on which the dirt fixing portion K is generated, and the dirt fixing portion K is gradually decomposed and removed. Played. The regeneration of the photocatalytic filter 2 is simultaneously performed during the normal deodorizing operation of the deodorizing apparatus 1, that is, during the deodorizing operation of the untreated gas G1. Note that such regeneration of the photocatalytic filter 2 is generally performed about once a year.

  The above is the procedure for regenerating the four photocatalyst filters 2 located on the windward side of the deodorizing module 15. However, when the dirt fixing portion K is generated on the four photocatalyst filters 2 on the leeward side, the same applies. The photocatalytic filter 2 can be regenerated by this method.

  As described above, in the regenerating means of the photocatalytic filter 2, it is only necessary to reverse the surface of the photocatalytic filter 2 where the dirt fixing portion K is generated so as to face the light source 3. Since it is not necessary to immerse in the cleaning liquid, rinse, or dry in the sun, it is possible to eliminate the need for much time and cost for regeneration of the photocatalytic filter 2.

  Further, it is necessary to recover the function of the collecting filter 18 that collects a large amount of dirt components such as fat and oil mist, but this collecting filter 18 is appropriately neutral detergent or the like depending on the adhesion state of the dirt components. By dipping and cleaning, the function can be easily recovered as compared with the photocatalytic filter 2. In general, the recovery of the function of the collecting filter 18 may be performed periodically about twice a year. In the case of recovering the function of only the collection filter 18, it is not necessary to remove the deodorization module 15 from the deodorization device 1, and only the collection filter 18 is removed from the deodorization module 15 and taken out of the deodorization device 1. good.

  In general, the light source 3 also needs to be replaced periodically about once every two years. For example, the light source 3 can be replaced from the windward side of the deodorizing module 15 for collection. This can be done by removing the filter 18, the photocatalytic filter 2, the inner member 26a and the outer member 26b.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In addition, about the structure same as the said Example 1, description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  In this embodiment, as in the first embodiment, when the dirt component adheres to the surface opposite to the light irradiation surface of the photocatalytic filter 2 as the maintenance means (dirt fixing portion K), The photocatalytic filter 2 is provided with a double-sided attachment portion 22 (see FIG. 7) that can be attached with the front and back reversed so that the surface to which the light is fixed faces the light source 3 side.

  However, in the above-described first embodiment, the double-sided attachment portion 22 is configured such that one or a plurality of photocatalytic filters 2 can be separately attached to and detached from each other with respect to the deodorizing module 15. The embodiment differs from the deodorizing module 15 in that it includes a double-sided attachment portion 22 that allows a plurality of photocatalytic filters 2 to be attached and detached simultaneously.

  For this purpose, the deodorizing module 15 includes a photocatalytic unit 41 in which a plurality of photocatalytic filters 2 are integrated, as shown in FIG. Note that at least the photocatalytic filter 2 on the windward side only needs to be the photocatalytic unit 41. In this case, both the photocatalytic filter 2 on the windward side and the leeward side are used as the photocatalytic unit 41.

  The above-described photocatalytic unit 41 is obtained by integrating a plurality of photocatalytic filters 2 by arranging them in a grid pattern on the same plane. In this case, the photocatalyst unit 41 is provided with a total of four sheets, for example, two sheets in the horizontal direction and two sheets in the vertical direction. However, the number and arrangement of the photocatalyst filters 2 in the photocatalyst unit 41 are not limited to this.

  The photocatalyst unit 41 is mainly configured by a plurality of (in this case, four) photocatalyst filters 2, a rectangular outer frame member 42, and an intermediate beam member having an inner member 43a and an outer member 43b. At the same time, it is assembled using a fastening fixture including screws 44a and nuts 44b for sandwiching and fixing the photocatalytic filter 2 between the inner member 43a and the outer member 43b.

  The outer frame member 42 described above has a C-shaped cross section, and a groove-shaped portion 42a into which the outer edge of the photocatalytic filter 2 can be inserted is formed on the entire circumference of the outer frame member 42. The four photocatalytic filters 2 regularly arranged in a plane at regular intervals are engaged in the outer frame member 42 with the outer edges thereof being inserted into the concave groove portions 42a. It can be stopped.

  For example, the inner member 43a and the outer member 43b constituting the middle rail member are formed in substantially the same shape as the inner member 26a and the outer member 26b of the first embodiment. The description will be omitted by giving the same reference numerals.

  And although the photocatalyst unit 41 mentioned above has the difference in the position of the screw 44a and the nut 44b, both surfaces are formed in substantially the same shape (both sides are the same shape member), and both surfaces are directed to the frame body 16. It is set as the double-sided attachment part 22 attached.

  In addition to or instead of the above, as shown in FIG. 9, the photocatalytic filter 2 (in this case, the photocatalytic unit 41) can be easily applied to the frame 16 (both sides) of the deodorizing module 15. A double-sided attachment portion 22 is provided so that it can be attached and detached and turned upside down. In this case, the double-sided attachment portion 22 can be easily reversed and attached and detached by fitting / removing the photocatalyst unit 41 to / from the frame 16 (double-sided attachment fitting portion).

  Since the frame 16 of the deodorizing module 15 has substantially the same shape and configuration as in the first embodiment, the same or equivalent parts are denoted by the same reference numerals and description thereof is omitted.

  The double-sided attachment portion 22 of this embodiment has a step-like photocatalyst fitting portion 45 (for double-sided attachment for fitting and holding the photocatalytic unit 41, which is recessedly formed in the inner peripheral edge of the frame 16. Fitting portion). The photocatalyst fitting portion 45 has a step amount substantially equal to the thickness of the photocatalyst unit 41 in order to fit the photocatalyst unit 41 flush with the outer surface of the frame body 16. The photocatalyst fitting portion 45 only needs to be provided at least on the windward side of the frame body 16. In this case, the photocatalyst fitting portion 45 is provided on both the windward side and the leeward side.

  In addition, the frame 16 has a fixing portion for fixing and releasing the photocatalyst unit 41 fitted in the photocatalyst fitting portion 45 as a part of the double-sided attachment portion 22 or as an auxiliary to the double-side attachment portion 22. Is provided. This fixing portion also functions as a leak preventing means for eliminating the gap between the frame 16 and the photocatalyst unit 41 and preventing the gas G from leaking.

  In this case, the fixing portion is a photocatalyst fixing tool 46 such as a screw with respect to a position inside the photocatalyst fitting portion 45 in the intermediate portion in the horizontal direction between the upper frame portion 16d and the lower frame portion 16c of the frame body 16. Is used as a fixing member 47 having a screw hole 47a for fixing the photocatalyst unit 41. On the other hand, screw insertion holes 47b for inserting a photocatalyst fixing tool 46 such as a screw are provided in the vicinity of the upper and lower ends of the vertical beam portions 27a and 27b of the photocatalyst unit 41 at positions that match the screw holes 47a. ing.

  Then, the photocatalyst unit 41 whose front and back surfaces are formed in substantially the same shape, the photocatalyst fitting portion 45 provided in the frame 16, and a screw hole 47a and a screw for fixing the photocatalyst unit 41 to the photocatalyst fitting portion 45 At least one or more of the photocatalyst fixtures 46 or the like constitutes the double-sided attachment portion 22 that allows the photocatalyst unit 41 to be attached / detached and reversed.

  The photocatalyst unit 41 may be fixed by using a fixing member similar to the locking portion 34a, the rotation lock 34b, or the like for the collection filter 18, instead of using a photocatalyst fixing tool 46 such as a screw.

  In addition, for taking out the photocatalyst unit 41 from the photocatalyst fitting portion 45, although not particularly illustrated, the photocatalyst unit 41 is provided with a handle portion such as a finger insertion hole or a handle. Or you may make it the photocatalyst unit 41 jump out of the photocatalyst fitting part 45 with the push rod which is not shown in figure by pressurizing the button provided in the frame 16. FIG.

  Furthermore, in this embodiment, as shown in FIGS. 10 and 11, the collection filter 18 is directly attached to the windward side of the frame body 16 as in the first embodiment. Instead, it can be the same as the embodiment described later including the first embodiment.

  (Operation) The operation of this embodiment will be described below.

  The operation of “when assembling the photocatalyst unit 41” is as follows.

  First, one of the inner member 43a and the outer member 43b (hereinafter, described as the inner member 43a) is disposed inside the outer frame member 42 that is laid down sideways. Then, the four photocatalytic filters 2 are arranged inside the outer frame member 42, and these photocatalytic filters 2 are positioned with respect to the outer frame member 42 and the inner member 43a.

  That is, after inserting the outer peripheral edge (outer edge) of the four photocatalyst filters 2 into the concave groove-like portion 42 a of the outer frame member 42, the edge of the photocatalyst filter 2 positioned within the opening of the outer frame member 42. By adjusting the (inner edge) to the inner member 43a flange-like stepped portions M2 and N2, the gap between the adjacent inner edge portions is adjusted to be equal to the recessed groove-like portions M1 and N1 of the inner member 43a. To do.

  Next, the outer member 43b is disposed so as to overlap one of the inner members 43a located in the outer frame member 42, and the screw 44a is passed from the screw insertion hole 27e of the outer member 43b to the screw hole 27d of the inner member 43a. After being inserted, it is screwed into a nut 44b positioned on the back side of the inner member 43a. Then, by sufficiently screwing the two screws 44a into the two nuts 44b, the four photocatalyst filters 2 arranged in a plane can be handled as the photocatalyst unit 41 integrally.

  Next, the operation of “when the photocatalytic unit 41 is attached to and detached from the frame body 16 constituting the deodorizing module main body” will be described.

  First, in order to attach the photocatalyst unit 41 to the deodorizing module 15, the above-described photocatalyst unit 41 is fitted into the photocatalyst fitting portion 45 of the frame body 16. Then, a photocatalyst fixing tool 46 such as two screws is screwed from the outer surface side of the photocatalyst unit 41 into the screw hole 47a of the fixing member 47 provided in the frame body 16 through the screw insertion hole 47b. Thereby, the photocatalyst unit 41 is fastened and fixed to the deodorizing module 15.

  On the contrary, in order to remove the photocatalyst unit 41 from the deodorizing module 15, the photocatalyst fixing tool 46 such as two screws is removed from the fixing member 47 of the frame body 16 in the reverse procedure to the above, and the photocatalytic unit 41 is removed. It is made to take out from the photocatalyst fitting part 45 of the frame 16.

  As described above, the deodorizing module 15 forms a photocatalyst unit 41 that can handle a plurality of photocatalyst filters 2 arranged in a plane as a unit, and the photocatalyst unit 41 can be used in any direction. Therefore, when it is necessary to regenerate the photocatalytic filter 2, the front and back of the four photocatalytic filters 2 can be easily reversed at once, and the work for regenerating the photocatalytic filter 2 is easy. Can be achieved. In the deodorizing module 15, the photocatalyst unit 41 is also attached to and detached from the frame 16, and the two photocatalyst fixtures 46 are attached and detached, and the photocatalyst unit 41 is fitted into the photocatalyst fitting portion 45 of the frame 16. It is only necessary to remove the photocatalyst from the photocatalyst fitting portion 45, so that it can be easily performed.

  Further, in this deodorizing module 15, the work for regenerating the photocatalytic filter 2 only needs to turn over the photocatalytic unit 41, and the photocatalytic unit 41 can be easily turned over. In this case, the deodorizing module 15 can be left attached to the shelf frame member 21 of the partition 8, and the work can be greatly reduced compared to the case of the deodorizing module 15 of the first embodiment. Simplification can be achieved. This is the same when the light source 3 is replaced.

  Therefore, in the deodorization apparatus 1 provided with such a deodorization module 15, the operation | work for reproducing | regenerating the photocatalyst filter 2 can be performed very easily.

  (Effect) According to the first embodiment and this embodiment, the following effects can be obtained.

  That is, by providing the double-sided attachment portion 22 as a maintenance means, when the dirt component is fixed to the surface opposite to the light irradiating surface of the photocatalyst filter 2, the surface to which the dirt component is fixed faces the light source 3 side. By attaching the photocatalyst filter 2 upside down and attaching it to the double-sided attachment portion 22, it is possible to decompose and remove (self-regenerate) the dirt components fixed to the photocatalyst filter 2 together with deodorization using the photocatalytic reaction. Become. As a result, it is possible to eliminate the cleaning operation for the photocatalytic filter 2.

  Moreover, according to this embodiment, the double-sided attachment part 22 can invert and attach a plurality of photocatalytic filters 2 at a time. Therefore, it is possible to reduce the number of man-hours for the reversing operation of the photocatalytic filter 2 and facilitate the reversing operation, thereby improving the maintainability.

  12 to 16 show Embodiment 3 of the present invention. In this embodiment, the same configuration as that of the second embodiment including the photocatalyst unit 41 is provided. In addition, about the structure same or equivalent to Example 2, description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  In this embodiment, a reversing mechanism 51 capable of reversing the photocatalyst filter 2 is provided as the maintenance means.

  The reversing mechanism 51 may assist the operator's manual reversing operation of the photocatalytic filter 2 or may include a driving device so that the photocatalytic filter 2 can be automatically reversed. In this case, the former is used.

  The reversing mechanism 51 may be provided in cooperation with the above-described double-sided attachment part 22 or may be provided independently of the double-sided attachment part 22. In this case, it is provided independently for the double-sided attachment portion 22. The reversing mechanism 51 can be provided for the inside of the deodorizing apparatus 1, the partition 8, the deodorizing module 15, and the like. In this case, as shown in FIGS. 12 and 13, the deodorizing module 15 is provided between the frame body 16 and the photocatalytic filter 2 (in this case, the photocatalytic unit 41).

  More specifically, the reversing mechanism 51 described above is provided at one position with respect to the center position of the width in the upper part of the photocatalyst unit 41. The reversing mechanism 51 described above can also be provided at one place with respect to the vertical center position on the side of the photocatalyst unit 41. Thus, by changing the installation position of the reversing mechanism 51, the reversing direction of the photocatalyst unit 41 can be changed.

  The reversing mechanism 51 mainly includes a connecting member 52 that rotatably connects the frame body 16 and the photocatalytic unit 41. On the other hand, as shown in FIGS. 14 and 15, the frame 16 and the photocatalyst unit 41 have connection holes 53 a and 53 b for attaching the connection member 52 (the photocatalyst unit 41 is attached to the frame 16. When installed, they are located close to each other.

  The connecting member 52 is a shaft-like locking member having retaining portions 52b and 52c having a diameter larger than that of the shaft portion 52a at both ends of the shaft portion 52a. Then, the shaft portion 52a of the connecting member 52 is inserted and disposed in the connecting holes 53a and 53b described above, and is locked by the retaining portions 52b and 52c so that the shaft portion 52a does not come off.

  The shaft portion 52a includes an attaching / detaching direction guide portion 52a1 serving as a guide when the photocatalyst unit 41 is taken out from the frame body 16, and a reversal center portion 52a2 serving as a reversal center when the photocatalyst unit 41 is reversed outside the frame body 16. It is supposed to have.

  The attaching / detaching direction guide portion 52a1 mainly extends downward, and the inversion center portion 52a2 extends from the lower end portion of the attaching / detaching direction guide portion 52a1 toward the out-of-plane direction of the photocatalyst unit 41. Therefore, in the middle of the shaft portion 52a, a joint portion 52a3 that can deform the shaft portion 52a into an attaching / detaching direction guide portion 52a1 or an inversion center portion 52a2 by bending and deforming the shaft portion 52a as necessary is provided. be able to. Alternatively, although not particularly illustrated, the shaft portion 52a may be formed in a bent shape or a curved shape having the attaching / detaching direction guide portion 52a1 and the reverse center portion 52a2 at the same time.

  At least one of the retaining portions 52b and 52c is detachable from the shaft portion 52a. In this case, for example, the retaining portion 52c on the lower end side can be attached to and detached from the shaft portion 52a by screwing. For this purpose, a threaded portion is provided between the lower end of the shaft portion 52a and the retaining portion 52c on the lower end side.

  Further, the connecting holes 53a and 53b have a long hole on the frame 16 side (connecting hole 53a) and a round hole on the photocatalyst unit 41 side (connecting hole 53b).

  As shown in FIG. 16, the coupling hole 53b (round hole) on the photocatalyst unit 41 side avoids the concave groove-like portion M1 of the vertical beam portions 27a and 27b located at the center of the thickness of the photocatalyst unit 41. Provided side by side on either side.

  In addition, the connecting hole 53a (long hole) on the frame body 16 side is inclined and misaligned in the shaft portion 52a generated when the photocatalyst unit 41 is reversed, and the frame body 16 side before and after the photocatalyst unit 41 is reversed. The length of the photocatalyst unit 41 in the thickness direction is set in consideration of the displacement of the connecting hole 53b.

  The connecting member 52 may be a string-like locking member such as a string member having knots at both ends instead of the shaft-like connecting member as described above.

  Further, the collection filter 18 may be directly attached to the deodorization module 15 as shown in the first and second embodiments, or may be provided separately from the deodorization module 15 as in the following embodiments. May be.

  (Operation) The operation of this embodiment will be described below.

  According to this embodiment, by providing the reversing mechanism 51 as a maintenance means, the photocatalytic filter 2 can be reversed easily and reliably, and the photocatalytic filter 2 is dropped during the reversing operation. Accidents that are broken or damaged can be prevented.

  More specifically, when the photocatalyst unit 41 is reversed, first, the attachment state of the frame body 16 and the photocatalyst unit 41 by the double-side attachment portion 22 can be released. That is, when the collection filter 18 is present in front of the photocatalyst unit 41, the collection filter 18 is removed, and when the photocatalyst unit 41 is fixed by the fixed portion, the fixed portion is removed. Next, the photocatalyst unit 41 is taken out of the frame body 16 along the attaching / detaching direction guide portion 52a1 and the reversal center portion 52a2 of the shaft portion 52a constituting the connecting member 52 of the reversing mechanism 51. It is inverted outside the body 16 around the inversion center portion 52a2. Thereafter, the photocatalyst unit 41 is attached and fixed by the double-sided attachment portion 22 of the frame 16 while moving from the inversion center portion 52a2 to the attachment / detachment direction guide portion 52a1 along the shaft portion 52a. As described above, the photocatalyst unit 41 is easily inverted. When the collection filter 18 is directly attached to the deodorizing module 15, the collection filter 18 is further attached.

  Thus, by using the connecting member 52 for the reversing mechanism 51, the photocatalytic unit 41 can be easily and reliably reversed with the simplest configuration.

  In addition to the above, the reversing mechanism 51 may be, for example, a manipulator provided in the interior of the deodorizing apparatus 1 or in the partition 8, or a reversing guide or a reversing arm provided in the deodorizing module 15. it can.

  17 to 21 show Embodiment 4 of the present invention. This embodiment can be applied to each of the embodiments described above. In addition, about the structure same or equivalent to each above-mentioned Example, description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  In this embodiment, (a) as the maintenance means, a collecting filter cleaning device 61 capable of removing the dirt component adhering to the collecting filter 18 by washing is provided.

  As shown in FIGS. 17 and 18, the collection filter cleaning device 61 is provided for cleaning the windward surface of the collection filter 18.

  The collection filter cleaning device 61 can be provided for the collection filter 18 directly attached to the deodorization module 15 as shown in the first and second embodiments, but preferably the deodorization module 15 and Is provided for the collection filter 18 provided separately.

  That is, (b) the collection filter 18 is installed (separated) with a space from the photocatalytic filter 2.

  For this purpose, the deodorizing device 1 is provided with a partition wall 62 that partitions the interior of the deodorizing device box 7 into a space on the inlet portion 5 side and a space on the side where the partition 8 having the deodorizing module 15 is provided. The collection filter 18 is attached to the partition wall 62.

  The partition wall 62 of the collection filter 18 may be formed by combining the above-described collection filter 18 attached to each deodorizing module 15 as it is to form a partition wall. It is also possible to create something like this. In this case, the former is used. The partition wall 62 of the collection filter 18 is, for example, a structure in which a plurality of collection filters 18 are attached to a framework constituting the partition wall 62.

  The partition wall 62 of the collection filter 18 is provided at a position separated from the partition 8 where the deodorizing module 15 is installed by a necessary minimum on the windward side so as not to be affected by washing. Alternatively, the partition wall 62 of the collection filter 18 is provided at a position as close as possible to the inlet portion 5 of the deodorizing device box 7. Or the partition wall 62 of the filter 18 for collection is provided in these intermediate positions.

  In addition, when the partition wall 62 of the collection filter 18 is provided, the collection filter 18 attached to each deodorizing module 15 can be omitted.

  And as shown in FIG. 19, the partition wall 62 of the filter 18 for collection is attached to the upper part of the water receiving tray 63 provided in the bottom face wall 7b of the deodorizing device box 7 via the base part 64. As shown in FIG. The water tray 63 described above has a width that is greater than the thickness of the partition wall 62 of the collection filter 18, and the bottom wall 7 b of the deodorizing device box 7 and the bottom side of the partition wall 62 of the collection filter 18. Between the side walls 7c and 7d. The water receiving tray 63 is provided with a required drainage gradient. Further, as shown in FIG. 20, a drain outlet 66a and a drain pipe 66b for discharging the cleaning liquid, water, etc. received by the water tray 63 to the outside are provided at the position where the drainage gradient is lowest.

  Further, as shown in FIG. 19, on the upper side of the pedestal portion 64, by changing the flow of the cleaning liquid or water flowing down along the partition wall 62 of the collection filter 18 in the lateral direction, A water splash preventing guide portion 64a is provided for preventing water splash. The water splash preventing guide portion 64a protrudes out of the plane of the surface of the collection filter 18 and has an inclined surface inclined downward.

  Then, as the collection filter cleaning device 61, on the windward side of the collection filter 18, the cleaning liquid, the rinsing water, and the air for foaming (or further drying) are directed toward the collection filter 18. A cleaning nozzle 67a capable of spraying the above is provided. For example, one cleaning nozzle 67 a is provided for each collection filter 18. However, the number of cleaning nozzles 67a installed on the collection filter 18 is not limited to this.

  Further, a cleaning pipe 67 for supplying a cleaning liquid, water, and air to the cleaning nozzle 67a is provided. The cleaning pipe 67 has a cleaning nozzle 67a on the leeward side. In this case, a plurality of cleaning pipes 67 extending in the horizontal direction so as to connect the cleaning nozzles 67a in the horizontal direction are arranged in parallel to the vertical direction. However, the cleaning pipe 67 may be provided with a plurality of cleaning pipes 67 extending in the vertical and horizontal directions so as to connect the cleaning nozzles 67a in the vertical direction in parallel to the horizontal direction. Alternatively, the cleaning nozzles 67a may be connected to each other while meandering one cleaning pipe 67 in the horizontal direction or the vertical direction. Alternatively, the cleaning pipe 67 may be arranged other than the above.

  As shown in FIG. 21, on the upstream side of the above-described cleaning pipe 67, a foam making device 68 and a cleaning liquid generating device 71 that constitute a part of the collection filter cleaning device 61 are provided. The foaming device 68 includes a cleaning liquid supply pipe 72 connected to the cleaning liquid generator 71, a water supply pipe 73 connected to an external water supply source, and a compressed air supply connected to an external compressed air supply source. A tube 74 is connected. The water supply pipe 73 and the compressed air supply pipe 74 are provided with regulating valves 73a and 74a, respectively.

  Further, the cleaning liquid generating device 71 described above is diluted with the undiluted liquid tank 75 for storing the undiluted detergent liquid, the mixer 76 for diluting and mixing the undiluted detergent liquid from the undiluted liquid tank 75 and water from the outside. A cleaning liquid tank 77 that stores the cleaning liquid having a required concentration obtained by mixing and a pump 78 that supplies the cleaning liquid from the cleaning liquid tank 77 to the foaming device 68 are provided. For example, a neutral detergent is used as the cleaning liquid. The cleaning liquid tank 77 preferably has a capacity enough to store an amount of cleaning liquid necessary for one cleaning. The cleaning liquid tank 77 is provided with an overflow pipe 77b provided with an overflow valve 77a and a drain pipe 77d provided with a drain valve 77c.

  The overflow pipe 77 b is connected to the upper portion of the cleaning liquid tank 77 and the position on the discharge side of the pump 78 in the cleaning liquid supply pipe 72 and the inlet side of the foamer 68. The drain pipe 77 d is provided at the bottom of the cleaning liquid tank 77. The cleaning liquid generating device 71 and the foam making device 68 described above are attached to the outer portion or the inner portion of the deodorizing device box 7 together with the cleaning device storage box 79 while being stored in the cleaning device storage box 79. In addition, when providing the washing | cleaning apparatus accommodation box 79 in the inner part (inside) of the deodorizing device box 7, in order to operate and control the deodorizing apparatus 1, the exclusive control apparatus for the filter cleaning apparatus 61 for collection is used. Aside from the control device, the deodorizing device box 7 is provided on the outer side.

  This control device operates the collection filter cleaning device 61 by controlling the pump 78 and the regulating valves 73a and 74a. The collection filter cleaning device 61 can be automatically operated at regular intervals or at regular intervals by, for example, a timer (not shown). Alternatively, in conjunction with the start / stop switch of the deodorizing apparatus 1, for example, when the operation of the deodorizing apparatus 1 is stopped, the deodorizing apparatus 1 can be automatically operated for a certain period of time. Alternatively, a manual operation may be performed.

  (Function and Effect) The function and effect of this embodiment will be described below.

  According to this embodiment, by providing the collection filter cleaning device 61 as a maintenance means, it becomes possible to clean and remove the dirt component adhering to the collection filter 18 inside the deodorizing device 1. It is possible to eliminate the trouble of removing the collection filter 18 from the deodorizing apparatus 1 and washing it outside.

  More specifically, the collection filter 18 is washed by spraying the washing liquid from the washing nozzle 67a toward the collection filter 18 to wash the collection filter 18 with the washing liquid, and then supplying water. This is performed by rinsing the collection filter 18 with water by spraying. If necessary, the collection filter 18 may be dried by spraying compressed air from the compressed air supply pipe 74 from the cleaning nozzle 67a. For drying, a drying nozzle may be provided separately, natural drying may be provided, a heater or other drying device may be provided, or drying is performed by passing untreated gas G1. You may make it let it.

  And the washing | cleaning liquid is injected to the filter 18 for collection as follows.

  That is, the cleaning agent stock solution from the stock solution tank 75 and water from the outside are diluted and mixed by the mixer 76 to obtain a cleaning solution of a required concentration, and this cleaning solution is stored in the cleaning solution tank 77. Preferably, the cleaning liquid is prepared in a necessary amount each time cleaning is performed. If too much cleaning liquid is made, the overflow valve 77a is opened to bypass the overflow pipe 77b to the foamer 68. Next, the cleaning liquid in the cleaning liquid tank 77 is sent to the foam making device 68 by the pump 78, and is foamed by the foam making device 68 with water from the water supply pipe 73 and compressed air from the compressed air supply pipe 74. Finally, the cleaning liquid foamed by the foam generator 68 is sent to the cleaning pipe 67 using the pressure of water or compressed air, and sprayed from the cleaning nozzle 67a to the collection filter 18 (cleaning process). ).

  When the foamy cleaning liquid is sprayed onto the collection filter 18 for a certain period of time or until there is no cleaning liquid in the cleaning tank, the pump 78 is stopped and the compressed air from the compressed air supply pipe 74 is stopped. Then, water from the water supply pipe 73 is sprayed from the washing nozzle 67a to the collection filter 18 through the washing pipe 67, and the collection filter 18 is rinsed (rinse washing process).

  At this time, the cleaning liquid and water sprayed to the collection filter 18 are collected in the water receiving tray 63 and discharged to the outside from the drain port 66a and the drain pipe 66b. At this time, the water splash prevention guide portion 64a provided on the pedestal portion 64 of the partition wall 62 of the collection filter 18 prevents the water splash at the portion of the water receiving tray 63, and the inside of the deodorizing device box 7 It is possible to prevent the cleaning liquid and water from splashing.

  When the collection filter 18 is sufficiently rinsed, the water from the water supply pipe 73 is stopped. If necessary, the collection filter 18 is further dried (drying step). The collection filter 18 is dried by, for example, injecting compressed air from the compressed air supply pipe 74 from the washing nozzle 67a toward the collection filter 18 via the washing pipe 67. When the amount of compressed air from the cleaning nozzle 67a is insufficient, a drying nozzle or the like may be provided separately from the cleaning nozzle 67a. Alternatively, instead of using compressed air, natural drying, drying using a heater or other drying device, or drying with untreated gas G1 may be used.

  If the cleaning liquid in the cleaning liquid tank 77 is left, the remaining cleaning liquid is discharged from the drain pipe 77d by opening the drain valve 77c.

  As described above, the dirt component is efficiently removed from the collection filter 18.

  In addition, since the collection filter 18 is disposed at a distance from the photocatalytic filter 2, the cleaning liquid is applied to the photocatalytic filter 2 when the collection filter 18 is washed by the collection filter cleaning device 61. Can be avoided.

  In addition, since all the dirt components that have passed through the collection filter 18 do not immediately adhere to the photocatalytic filter 2 due to the above-described interval, the amount of dirt components attached to the photocatalytic filter 2 can be reduced. As a result, it is possible to delay the degradation of the function of the photocatalytic filter 2 or reduce the number of regenerations for the photocatalytic filter 2. In this case, most of the dirt components that have passed through the collection filter 18 adhere to the passage portion between the two before reaching the photocatalyst filter 2, but the total amount is very small. no problem. On the other hand, when the collection filter 18 is installed immediately before the photocatalytic filter 2 as in Example 1 or Example 2, before the dirt component is collected by the collection filter 18 in the passage portion. Therefore, more dirt components adhere to the passage portion. Therefore, the amount of dirt components attached to the passage portion can be reduced as a whole.

  In addition, maintenance of the photocatalytic filter 2 can be performed without being interrupted by the collection filter 18 and the collection filter cleaning device 61 due to the interval. For example, maintenance of the photocatalyst filter 2 can be performed without removing the collection filter 18, and maintenance of the photocatalyst filter 2 can be performed simultaneously while cleaning the collection filter 18. Furthermore, since the degree of freedom in designing the photocatalytic filter 2 and its surroundings is increased, for example, a structure capable of opening and closing the partition 8 can be realized.

  In this embodiment, the partition wall 62 of the collection filter 18 has been described as being parallel to the front wall 7e and the back wall 7f of the deodorizing device box 7, but the partition wall 62 of the collection filter 18 The shape is not limited to this. For example, as a modification, as shown in FIG. 22, the partition wall 62 of the collection filter 18 can be arranged in a zigzag shape or the like. Thereby, the installation area of the filter 18 for collection can be increased, the collection efficiency with respect to a dirt component can be improved, and the pressure loss when the gas G passes can be reduced.

  Further, since the cleaning nozzle 67a is directed in the direction of each surface of the collecting filter 18 installed in a zigzag shape, it becomes difficult for the cleaning liquid to reach the photocatalytic filter 2 directly. It is possible to bring the collection filter 18 closer.

  23 and 24 show a fifth embodiment of the present invention. This embodiment can be applied to each of the embodiments described above. In addition, about the structure same or equivalent to the above-mentioned Example, description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  In this embodiment, the maintenance means is provided with a ball break sensing unit 81 that can sense the ball break of the light source 3.

  In this case, the ball breakage detection unit 81 is a peep hole 82 formed at a position facing each light source 3 in the vertical beam member 27 b of the photocatalyst unit 41. A light guide plate 83 made of a transparent resin such as acrylic can be attached to each peep hole 82.

  (Function and Effect) The following will describe the function and effect of this embodiment.

  According to this embodiment, by providing the ball breakage detection unit 81 as the maintenance means, the worker can sense the ball breakage of the light source 3. This makes it possible to replace the light source 3 immediately after the ball is blown. Therefore, it is possible to avoid operating the deodorizing apparatus 1 while the deodorizing function is not performed or the deodorizing function is deteriorated due to running out of the light source 3.

  As the ball breakage detecting portion 81, the light source 3 is detected at a glance by forming a peep hole 82 at a position facing the light sources 3 in the vertical beam portion of the photocatalyst unit 41. Will be able to. Further, by forming the viewing hole 82 in the vertical cross section of the photocatalyst unit 41, it is possible to eliminate the necessity of providing the viewing hole 82 with respect to the photocatalytic filter 2, and to prevent a reduction in the area of the photocatalytic filter 2. It becomes.

  The peep hole 82 is particularly effective when the collection filter 18 is provided apart from the photocatalytic filter 2.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

DESCRIPTION OF SYMBOLS 1 Deodorizing device 2 Photocatalyst filter 3 Light source 7 Deodorizing device box 8 Partition 15 Deodorizing module 18 Filter for collection 22 Double-side attachment part (maintenance means)
DESCRIPTION OF SYMBOLS 23 Outer edge part attachment part 26 Inner edge part attachment part 26a Inner member 26b Outer member 41 Photocatalyst unit 42 Outer frame member 43a Inner member 43b Outer member 45 Photocatalyst fitting part 46 Photocatalyst fixing tool 47a Screw hole 51 Reverse mechanism (maintenance means)
52 connecting member 61 filter cleaning device for collection (maintenance means)
62 Partition wall 63 Water receiving tray 67a Cleaning nozzle 68 Foam generator 71 Cleaning liquid generator 79 Cleaning device storage box 81 Ball breakage detection unit (maintenance means)
82 Peephole 83 Light guide plate G Gas G1 Untreated gas G2 Deodorized gas

Claims (3)

A photocatalytic filter that passes the untreated gas through a partition that divides the inside of the deodorizing device box having an inlet portion of the untreated gas containing at least an odor component and an outlet portion of the treated gas into an inlet portion side and an outlet portion side. And a deodorizing apparatus equipped with a deodorizing module having a light source for causing a photocatalytic reaction to the photocatalytic filter ,
The deodorizing module is provided with a photocatalytic unit formed by integrating a plurality of the photocatalytic filters,
Maintenance means for performing maintenance on the photocatalytic filter is provided,
As a maintenance means of the photocatalyst filter, a reversing mechanism is provided for reversing the front and back of the plurality of photocatalytic filters for each photocatalyst unit at a time,
The deodorizing apparatus, wherein the inversion mechanism is a connecting member that rotatably connects the deodorizing module and the photocatalytic unit . A photocatalytic filter that passes the untreated gas through a partition that divides the inside of the deodorizing device box having an inlet portion of the untreated gas containing at least an odor component and an outlet portion of the treated gas into an inlet portion side and an outlet portion side. And a deodorizing apparatus equipped with a deodorizing module having a light source for causing a photocatalytic reaction to the photocatalytic filter ,
The deodorizing module is provided with a photocatalytic unit formed by integrating a plurality of the photocatalytic filters,
Maintenance means for performing maintenance on the photocatalytic filter is provided,
As a maintenance means of the photocatalyst filter, a reversing mechanism is provided for reversing the front and back of the plurality of photocatalytic filters for each photocatalyst unit at a time,
The reversing mechanism is a connecting member that rotatably connects the deodorizing module and the photocatalytic unit;
On the windward side of the deodorizing module, a collection filter capable of collecting dirt components contained in the untreated gas is installed with an interval from the deodorizing module, and
Maintenance means for performing maintenance on the collection filter is provided,
As a maintenance means for the collection filter, on the windward side of the collection filter, a collection filter cleaning device capable of removing dirt components attached to the collection filter by washing is provided.
The collection filter cleaning device has a defoaming device for foaming a cleaning liquid, and a cleaning nozzle for injecting a cleaning liquid foamed by the foaming device to a collection filter. The collection filter is installed inside the deodorization device box in a zigzag shape,
The deodorizing apparatus according to claim 1 or 2, wherein the cleaning nozzle of the collection filter cleaning device is installed so as to face each surface of the collection filter installed in a zigzag shape. .