JP5115313B2 - Kitchen exhaust structure - Google Patents

Description

  The present invention relates to an exhaust system that exhausts air from a kitchen such as a house to the outside.

  Generally, in a ventilation facility or the like, air is guided to a predetermined place using a duct. In many cases, a duct is provided in the space behind the ceiling of the building so that the outside of the building is connected to the living room by the duct so that ventilation can be provided. If the living room is in contact with the outer wall, there is no problem even if the duct diameter is large, since it can be connected to the outside as it is. However, if the living room does not face the outer wall, the duct must be piped to the outer wall surface. However, the ceiling pocket is divided by the beam, but it is difficult to install a duct across the beam. Therefore, a through hole is provided in the beam, and the duct is inserted through the through hole. There is.

  That is, conventionally, the above-described duct that penetrates the beam is provided with a large duct through-hole provided in advance in the steel beam, and the duct is inserted through the duct. For example, consider a case where a steel beam that supports a slab is provided with a through-hole having an opening diameter D and a duct having a diameter d is passed through. The steel beam is covered with a fireproof coating as necessary, and the duct is covered with a heat insulating material. Usually, the fireproof coating of the steel beam needs to have a thickness of about 30 to 60 mm, and the heat insulating material of the duct needs to have a thickness of about 20 to 25 mm wound around the outer peripheral surface. Therefore, in the conventional case, the size of the through hole of the steel beam (opening diameter D) had to be planned at least by adding the thickness of the heat insulating material and the fireproof coating to the duct diameter d.

  Therefore, conventionally, when a duct is penetrated through a steel beam, the through hole is larger than the duct diameter d by twice the heat insulating material thickness of the duct and, if necessary, by twice the fireproof coating thickness. If it must be provided with an opening diameter D, and it is provided so as to fit in the beam without compromising the strength of the steel beam, the duct diameter d must be reduced or the beam is necessarily increased. It was. In addition, when it is impossible to cope with these problems, a duct has to be formed by lowering the ceiling surface for installation as a falling ceiling.

For example, Patent Document 1 describes a structure in which a ceiling near the boundary between adjacent living rooms is a ceiling, and a ventilation duct for central air conditioning equipment is passed through the ceiling. The falling ceiling part is formed at a height lower than the ceiling surface, and is formed by combining a ceiling surface material and a duct ceiling surface material parallel to each other to bridge a gently inclined ceiling surface material.
Japanese Patent Laid-Open No. 11-230608

  However, if the ceiling is provided with a lowered ceiling as described above, the ceiling height may be sufficient to some extent. However, in a living room such as a house, the ceiling is not so high, and the falling ceiling gives a feeling of pressure to the room. There is a risk of damaging the design. In addition, depending on the position where the falling ceiling is provided, there is a problem in that the arrangement of furniture, openings, and the like is restricted.

  Therefore, in a house or the like, it is most preferable to place the duct in a ceiling pocket and pipe it, and guide it to the outside by beam penetration. Usually, one duct is connected to a range hood provided in a kitchen together with a blower, and is piped to the outside. The normal duct provided in the range hood has a diameter of 150 mm, and it is difficult to penetrate the beam in a building such as a house where the beam is 200 to 250 mm. Under such circumstances, exhaust devices such as range hoods provided in the kitchen are required to have sufficient trapping power, and cannot be handled by a small air volume blower that requires a small duct diameter. Yes.

  In recent years, it is expected that new buildings and existing buildings assuming stock will be refurbished or remanufactured and the buildings will be operated over a long period of time as the society shifts to a stock society. In order to continue to use the building effectively over a long period of time, it is necessary not only to ensure the durability of the building but also to change the form of the building according to the needs of the building user and society at that time. .

  For example, in the case of homes, as the family structure changes, the number of rooms required and the number of rooms will change, so it will be possible to respond to it by assuming that plans will be changed or renovated in the future. It is desirable to plan from the beginning. This makes it possible to use the building correspondingly without incurring losses from the viewpoint of cost and resources.

  From this point of view, it is assumed that in the kitchen, it is assumed that the kitchen is set up in a different place from the new construction or that the layout is changed in the kitchen, and the kitchen is moved to a place that does not face the outer wall, There is also a need to establish and renew range hoods. If it does so, in the structure of the conventional falling ceiling, the ceiling will be disassembled and duct piping will be redone, or the housing construction for newly arrange | positioning a duct will also arise. Moreover, in order to provide a kitchen in a place that does not face the outer wall, it is necessary to provide a newly lowered ceiling and change the installation height of the ceiling material.

  For this reason, in addition to the problems in the conventional range hood and duct piping as described above, in order to cope with long-term building operation, it has been required to rebuild the kitchen exhaust structure to a new one. .

  The present invention has been made in view of the above problems, and in a kitchen such as a house, it is possible to arrange an exhaust duct that does not impair the indoor design, and has a sufficient collection power. The present invention provides a kitchen exhaust structure that has an appropriate exhaust air volume and that can be used for a long-term operation of a building.

In order to achieve the above object, according to the present invention, one exhaust device provided in connection with a kitchen of a house has a plurality of exhaust fans , and the plurality of exhaust fans are connected to a plurality of corresponding exhaust ducts. and an exhaust structure of kitchen, the plurality of exhaust fan is adjustably controlled drivable and exhaust air volume separately or simultaneously, the exhaust duct thermal barrier coating is performed respectively, the outer diameter including the thermal barrier coating is the a duct size of the small-diameter fit to blame beams ceilings bosom beams houses beams sleeve with a small diameter corresponding to the exhaust duct is disposed on the front Kihari, the via the beams sleeve An exhaust duct is piped, and the plurality of exhaust ducts are juxtaposed in the ceiling pocket by beam penetration and communicated with an external air outlet .

According to such an invention, the exhaust duct, which has conventionally been difficult to penetrate through the beam or has been exposed and piped indoors, can be placed in the ceiling pocket and arranged without affecting the interior design. It is possible to form a small kitchen. In addition, the exhaust device has a plurality of exhaust fans, and these exhaust fans can be operated individually or simultaneously according to the required exhaust air volume, or the exhaust air volume can be adjusted, so that sufficient repairing power is provided. As a result, convenience can be improved and an efficient operation state can be achieved, and a comfortable living environment and energy saving can be realized . In addition, since multiple small-diameter exhaust ducts corresponding to multiple exhaust fans are piped to the ceiling pocket, the kitchen can be used in any form such as I-type, L-type, or island-type. It is possible to respond to future plan changes in the same way.

  Specifically, it is preferable that the exhaust duct is formed with a diameter of about 100 mm, the exhaust device is connected to two exhaust ducts, and includes two exhaust fans. Further, the exhaust duct may have a diameter of about 125 mm, two exhaust ducts may be connected to the exhaust device, and two exhaust fans may be provided.

  With such a configuration, even if the ceiling beam is about 200 to 250 mm, it can be disposed through the exhaust duct. Therefore, even if the kitchen is not provided at the place facing the outer wall, the exhaust duct can be communicated to the external outlet through the ceiling pocket, and any plan type can be handled.

  According to the present invention, in the exhaust structure of the kitchen having the above-described configuration, the exhaust device may be provided with an exhaust flow path that leads to each exhaust duct for each exhaust fan. As a result, the airflow balance in the exhaust device can be controlled, efficient operation can be performed, and various exhaust modes can be taken.

  Furthermore, in the exhaust structure of the kitchen having the above-described configuration according to the present invention, a preliminary through-hole for penetrating the exhaust duct is provided in the beam by previously penetrating the beam sleeve. May be.

  As a result, the exhaust duct can be re-arranged without the work of providing a through-hole in the beam even if the kitchen layout changes or the location moves in future renovations, etc. It is possible to easily cope with the operation of a complex building.

  According to the exhaust structure of the kitchen of the present invention configured as described above, it is possible to arrange the exhaust duct without impairing the interior design of the kitchen, and to provide a sufficient collection force and an appropriate exhaust air volume. In addition, it is possible to easily cope with long-term operation of the building.

  Hereinafter, the best mode for carrying out the exhaust structure of a kitchen according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an example of the exhaust structure of a kitchen of the present invention, and FIGS. 2 to 6 are explanatory views schematically showing the exhaust structure of the kitchen of the present invention.

  As shown in FIG. 1, the exhaust structure of a kitchen according to the present invention is provided with an exhaust device 2 on a ceiling 11 of the kitchen 1, and an exhaust duct 3 is connected to the exhaust device 2. Further, the exhaust duct 3 is arranged in the ceiling pocket 12 by beam penetration.

  The exhaust device 2 corresponds to, for example, a range hood in which a box-shaped hood body is provided with a suction port, an exhaust fan, and the like, and exhausts steam, oily smoke, and the like generated during cooking in the kitchen 1 to the outside.

  The exhaust duct 3 extending from the exhaust device 2 has a circular cross section, and a heat insulating coating 31 is formed on the outer peripheral surface. In the illustrated embodiment, the exhaust duct 3 is a small-diameter duct having an outer diameter including the heat insulation coating 31 and a size that fits in the beam of the steel beam 4.

  The exhaust device 2 and the external air outlet 5 are connected by a plurality of exhaust ducts 3 and 3 arranged in parallel. As illustrated, in the illustrated embodiment, two exhaust ducts 3 and 3 are connected to the exhaust device 2 and extend in the direction of the external air outlet 5.

  Here, the exhaust ducts 3 and 3 have a small diameter, and are piped through the steel beam 4 disposed in the ceiling pocket 12 of the kitchen 1. As shown in FIG. 2, the kitchen 1 is arranged in a room facing the outer wall 8, or in a building that does not face the outer wall 8 as shown in FIG. 3. Even if it is a living room form, it is applicable.

  As shown in FIG. 1, the steel beam 4 of the ceiling pocket 12 at the top of the kitchen 1 is provided with through holes 42, 42 in the web 41, and has a small diameter corresponding to the small diameter exhaust ducts 3, 3. The beam sleeves 6 and 6 are respectively attached. The beam sleeve 6 is formed in a cylindrical shape so that the exhaust duct 3 can be inserted inside.

  Thus, the exhaust ducts 3 and 3 are piped to the ceiling pocket 12 through the beam through the beam sleeves 6 and 6 provided in the steel beam 4. Accordingly, the exhaust ducts 3 and 3 can be piped to the external air outlet 5 without being exposed to the ceiling 11 portion of the kitchen 1 or forming a falling ceiling.

The exhaust device 2 includes a number of exhaust fans 7 corresponding to a plurality of exhaust ducts 3. That is, in the illustrated embodiment, two exhaust fans 7 and 7 are provided corresponding to the two exhaust ducts 3 and 3. These exhaust fans 7, 7 suck the air in the kitchen 1 and discharge it to the exhaust duct 3. The exhaust device 2 includes two exhaust fans 7 so as to satisfy a necessary exhaust air volume.

  These exhaust fans 7 and 7 are connected to the exhaust device 2 in pairs with the exhaust ducts 3 and 3. For this reason, the exhaust flow path guided to each exhaust duct 3 may be formed for each of the two exhaust fans 7 provided. That is, as shown in FIG. 4, the inside of the exhaust device 2 is divided into two by the partition member 21. As a result, the exhaust device 2 has two exhaust passages extending from the suction port to the exhaust duct 3, and one exhaust fan 7 is provided in each exhaust passage.

  Thus, each exhaust fan 7 provided in the individual exhaust flow path is controlled so that it can be operated individually or simultaneously, and it is preferable that the operation mode can be selected depending on the required exhaust air volume. Moreover, not only the exhaust fans 7 and 7 have the same collection ability, but an exhaust fan having a different ability may be selected.

  For example, when the heating cooker of the kitchen 1 is used with a small amount of heat, it is operated so as to exhaust only by operating one of the exhaust fans 7 without driving both the exhaust fans 7 and 7 provided. The operation mode of the exhaust fans 7 and 7 can be appropriately selected and controlled. Specifically, by controlling the number of rotations of the motor provided in the exhaust fan 7 or changing the air volume or wind speed, the operation mode of the exhaust fans 7 and 7 is a strong operation by two units, one unit or two units. It is possible to switch to medium operation with a vehicle and weak operation with only one vehicle.

  Accordingly, since the exhaust fans 7 and 7 can ensure the necessary exhaust air volume by operating two units simultaneously, it is possible to reduce the size of each of the exhaust fans 7. This increases the degree of freedom in design.

  Moreover, the form as shown in FIG.5 and FIG.6 may be sufficient as the exhaust structure of the kitchen of this invention. That is, in the form shown in FIG. 5, the exhaust fan 7, 7 is provided in the middle portion of the two exhaust ducts 3, 3 arranged side by side in the ceiling pocket 12. As a result, the exhaust device 2 is provided with a hood body and a suction port at the top of the kitchen 1 and the exhaust fans 7 and 7 are housed in the ceiling pocket 12 so that the shape of the range hood can be made more flexible than before. Can be designed or modified.

  In the form shown in FIG. 6, exhaust fans 7 and 7 are provided outside at the downstream end of the exhaust ducts 3 and 3 and connected to the external air outlet 5. Also in this case, as in the example of FIG. 5, the exhaust device 2 has only a hood body and a suction port provided in the upper part of the kitchen 1, so that the degree of freedom in design increases. In addition, since the exhaust fans 7 and 7 can be easily accessed from the outside, the maintainability is improved, and the comfortability can be improved by placing the noise source outside.

  Due to the exhaust structure as described above, when the range hood or the like is provided in the kitchen 1, the exhaust duct 3 can be disposed in the ceiling pocket 12 through the beam without exposing it to the kitchen 1. It is possible to form an appearance that does not affect the above. Moreover, in the present invention, since a plurality of exhaust ducts 3 and a plurality of exhaust fans 7 are provided, it is possible to obtain an air volume and a collection capability that are completely inferior to those of the conventional structure.

  In long-term operation of a building, even if the layout of the kitchen 1 is changed, it can be dealt with without newly forming a ceiling or the like. Moreover, since it is not a falling ceiling, it is easy to re-pipe the exhaust duct 3 by extending or shortening the exhaust duct 3 in the ceiling pocket 12, and the exhaust device 2 can be rearranged at a desired location without any restrictions. The kitchen 1 can be renovated.

  Further, in such an exhaust structure, the beam sleeves 6 and 6 may be disposed in advance in the steel beam 4 at a plurality of positions. In this case, the steel beam 4 arranged as a structural frame of the building is provided with a spare through hole 42 that penetrates the exhaust duct 3 in advance at the time of new construction, and the beam sleeve 6 is provided. Thereby, it is possible to place the exhaust duct 3 by the beam penetration without using the spare work hole in the place where the piping of the exhaust duct 3 is newly required, using the spare through-hole 42, It is possible to cope with any renovation or reconstruction.

  FIG. 7 is an explanatory view of a steel beam 4 provided with an exhaust duct 3 according to an embodiment of the exhaust structure of a kitchen of the present invention.

  In the ceiling pocket 12 of the kitchen 1, two exhaust ducts 3 connected to an exhaust device having an exhaust fan are disposed by beam penetration. The exhaust device is provided with two exhaust fans (see FIG. 1).

  In the ceiling pocket 12, the steel beam 4 is an H-shaped steel, which is of a type normally used in a building such as a house, and the length H is formed to be 200 to 250 mm. In the web 41 of the steel beam 4, two through holes 42 and 42 are opened with a predetermined interval. The beam sleeve 6 is attached to each through hole 42.

  When the steel beam 4 has a length H of 200 mm, the exhaust ducts 3 and 3 can be ducts having a small diameter having an outer diameter φ of 100 mm. Each exhaust duct 3 is covered with an appropriate heat insulating material 31a having a thickness of 20 mm. Accordingly, the exhaust ducts 3 and 3 are configured to have an outer diameter of about 140 mm including the heat insulation coating.

  In the case of the conventional structure, the exhaust duct needs to have an outer diameter φ of 150 mm or more, and if the heat insulating coating is included, the exhaust duct has an outer diameter of 190 mm or more. For this reason, the beam requires a through-hole having a diameter of 200 mm or more, and a corresponding large-diameter beam sleeve has to be provided. However, it is often the case that a beam corresponding to this cannot be secured sufficiently, and a large-diameter beam sleeve cannot be provided due to beam penetration.

  On the other hand, in the present exhaust structure, one exhaust duct 3 can be greatly reduced in size, and even if it is a normal housing structure housing with a H of about 200 mm to 250 mm, the exhaust duct 3 It is possible to penetrate.

  In other words, in the present embodiment, the through holes 42 and 42 provided in the steel beam 4 need only have a size that can be opened at a height H of 200 mm, for example, a diameter D of about 150 mm. It can be arranged.

  Further, when the steel beam 4 has a length H of 250 mm, the exhaust ducts 3 and 3 may be ducts having a small diameter having an outer diameter φ of 125 mm. The exhaust ducts 3 and 3 have an outer diameter of about 165 mm including the heat insulation coating, and can be miniaturized. The through-holes 42 and 42 provided in the steel beam 4 can be set to about 175 mm, for example, which can be opened at the H of 250 mm. As a result, the exhaust ducts 3 and 3 can be arranged by beam penetration and stored in the ceiling pocket 12.

  Therefore, it is not necessary to take a measure such as lowering the ceiling 11 of the kitchen so as to arrange the exhaust duct 3, and the exhaust structure can be formed without impairing the indoor design.

  In the present embodiment, the dimensions of the beam, the exhaust duct, the beam sleeve, etc. are illustrative, and are not limited to these numerical values, and may be a form in which a plurality of exhaust ducts can be provided by beam penetration. Any dimension configuration may be used.

  The present invention can be suitably used for an exhaust structure formed in a kitchen such as a house.

It is a perspective view which shows the exhaust structure of the kitchen which concerns on this invention. It is explanatory drawing which shows typically an example of the exhaust structure of the kitchen of this invention. It is explanatory drawing which shows typically the other example of the exhaust structure of the kitchen of this invention. It is explanatory drawing which shows typically the other example of the exhaust structure of the kitchen of this invention. It is explanatory drawing which shows typically the other example of the exhaust structure of the kitchen of this invention. It is explanatory drawing which shows typically the exhaust structure other example of the kitchen of this invention. It is explanatory drawing which shows the Example of this invention and shows the arrangement | positioning form of the exhaust duct in a steel beam.

Explanation of symbols

1 Kitchen 11 Ceiling 12 Ceiling pocket 2 Exhaust device 3 Exhaust duct 4 Steel beam 5 External outlet 6 Beam sleeve 7 Exhaust fan

Claims (1)

One exhaust device provided in connection with a residential kitchen has a plurality of exhaust fans , and the plurality of exhaust fans is an exhaust structure of a kitchen connected to a plurality of corresponding exhaust ducts ,
The plurality of exhaust fans can be operated individually or simultaneously and controlled so that the exhaust air volume can be adjusted,
Each of the exhaust ducts is a heat insulating coating, and the outer diameter including the heat insulating coating is a small-diameter duct having a size that fits into the beam of the ceiling pocket of the house ,
Before Kihari beams sleeve small diameter corresponding to the exhaust duct is disposed on the said exhaust duct is a pipe through the beams sleeve,
An exhaust structure of a kitchen , wherein the plurality of exhaust ducts are arranged side by side through the beam in the ceiling pocket and communicated with an external air outlet .

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