JP5566923B2 - Air blower connector and air blower continuum using the connector - Google Patents

Description

  The present invention uses a connector suitable for joining together a plurality of air blowing devices used as push-side air blowing devices in a push-pull type ventilation device or push-push type ventilation device, and uses the connecting device. And a continuous body of air blowing devices that are connected together.

  An air blowing device that supplies air for ventilation or clean air to a local work space in a factory is conventionally known and well known. It is also known that some of the air blowing devices are used as, for example, a push-side air blowing device in a push-pull type ventilation device, and others are used as an air blowing device in a push-push type ventilation device. .

  For example, a toxic gas exposure prevention device for an anatomical training room described in Japanese Patent No. 4349583 (Patent Document 1) is an example of a push-pull type ventilation device, and includes a push hood and a pull hood that are opposed to each other with a dissection table interposed therebetween. Is included. From the push hood, which is an air blowing device, a uniform air flow is blown out so as to pass over the specimen placed on the dissection table, and the air flow is sucked into the pull hood.

  Moreover, the local air cleaning apparatus of Unexamined-Japanese-Patent No. 2008-275266 (patent document 2) contains a pair of push hood arrange | positioned so that it may mutually oppose. In this device, the air flow blown out from each push hood which is an air blowing device is blown out so as to collide between the push hood and the push hood, so that clean air is interposed between the push hood and the push hood. A working space can be created.

Japanese Patent No. 4349583 JP 2008-275266 A

  The ventilator in the conventional example is for the purpose of ventilating the local work space, and the air blowing device in the ventilator is also suitable for the extent of the local work space. The However, depending on the work content, there is a case where it is desired to expand the work space that has been used in the past, and in order to respond to this, it is necessary to arrange two or more air blowing devices.

  However, the air blowing surface formed in the front portion of the air blowing device has an edge that does not blow air at the periphery thereof, and, for example, in the case of two air blowing devices adjacent to each other so as to be side by side, The front edge part which does not blow off air between the edges to perform is formed. Such a front space in the front portion is unsuitable for use as a work space because ambient air that is outside the air blowing device and has not yet been filtered easily enters.

  Therefore, in the present invention, when a plurality of air blowing devices are used side by side, the conventional air blowing device is improved so that the air of the air blowing device can be blown out between adjacent air blowing devices. It is a problem.

  The present invention for solving the above-mentioned problems is a continuum of a first invention relating to a connector used for two adjacent air blowing devices and an air blowing device connected using the connecting tools. And the second invention according to the present invention.

  The first invention is directed to a single air blowing device having a front and a rear, and a first air blowing surface capable of blowing air from the rear toward the front is formed in the forefront. A plurality of the air blowing devices are connected to each other in such a manner that a part of the edge of the first air blowing surface is adjacent to each other in parallel to each other, thereby forming a continuous body of the air blowing device.

  In the connector, the first invention is characterized as follows. That is, the connector has a second air blowing surface in which a plurality of air blowing holes are distributed in the front portion thereof, and the rear portion is positioned in front of each of the adjacent edges in the continuum. A rear opening through which a part of the air from each of the first air blowing surfaces flows is defined by a non-breathable peripheral wall portion extending rearward from the second air blowing surface. The width | variety of the said rear part opening is formed so that it may reach to each said 1st air blowing surface located inside each said edge part across the said adjacent edge parts.

  In one of the embodiments of the first invention, the connector is formed so that the length in the direction along each of the adjacent edges exceeds the length of each of the edges.

  In another embodiment of the first invention, the connector has a width that can exceed each of the adjacent edges in parallel with each other by 3 to 25 mm.

  In another embodiment of the first aspect of the invention, the peripheral wall portion includes a portion that closes both ends of the rear opening in a non-breathable state in a direction in which the edge portions are parallel to each other.

  In yet another embodiment of the first invention, a plurality of the air blowing devices can be connected in at least one of a horizontal direction and a direction perpendicular to the horizontal direction.

  The second invention is intended for a single air blowing device having a front and a rear, and a first air blowing surface capable of blowing air from the rear toward the front is formed in the forefront. It is the continuous body of the said air blowing apparatus obtained by connecting several in the aspect adjacent to each other.

  In such a continuum, the second invention is characterized as follows. That is, a plurality of the air blowing devices are adjacent to each other in such a manner that a part of the edge of the first air blowing surface is parallel to each other, and the adjacent air blowing devices are adjacent to each other in front of the paralleled edges. A connecting breathable connector is located. The connector has a second air blowing surface in which a plurality of air blowing holes are distributed in a front portion thereof, and a part of air from each of the first air blowing surfaces in the continuum flows into the rear portion thereof. A rear opening is defined by a non-breathable peripheral wall portion extending rearward from the second air blowing surface. The rear opening reaches each of the first air blowing surfaces located on the inner side of each of the edges across the parallel edges, and from each of the joined air blowing devices. After a part of the air flows into the connector from the rear opening, the air can be blown out from the second air blowing surface to the front of the connector.

  In one embodiment of the second aspect of the invention, the distance between the parallel edge portions is in the range of 0 to 20 mm.

  In another embodiment of the second invention, the air blowing device is used as a push-side ventilation device in either a push-pull type ventilation device or a push-push type ventilation device.

  According to the connecting device according to the present invention and the continuous body of the air blowing devices connected by the connecting device, the plurality of airs connected in such a manner that a part of the edge portion of the first air blowing surface is adjacent to each other in parallel. Air from the first air blowing surface in each blowing device alone flows into the rear opening in the connector. Since the air that has flowed in is blown out from the second air blowing surface of the connector toward the front of the connector, it is in the front space at the edge of each of the air blowing devices that are joined together and around the air blowing device alone. Dirty air can be prevented from entering.

The perspective view of a continuous body. The disassembled perspective view of a continuous body. The figure which shows the III-III line | wire cut surface of FIG. The figure similar to FIG. 3 which shows an example of an embodiment. The front view of the continuous body of various aspects. The figure similar to FIG. 1 which shows the sampling position by a particle counter. The figure similar to FIG. 4 which shows the sampling position by a particle counter. The front view of the continuous body which shows the installation position of a wind speed sensor.

  The details of the continuum of the air blowing device obtained by connecting a plurality of the connecting device according to the present invention and a plurality of air blowing devices through the connecting device will be described below with reference to the accompanying drawings. .

  1 and 2, FIG. 1 is a perspective view of a continuous body 3 of an air blowing device, and the continuous body 3 includes two air blowing devices 1. FIG. 2 is an exploded perspective view of the continuum 3 separately showing the two air blowing devices 1 forming the continuum 3 in FIG. 1 and the connector 2 connecting the singular 1. Regarding the single body 1, the connector 2, and the continuous body 3 in these drawings, the double-headed arrow X in the drawings indicates the width direction, the double-headed arrow Y indicates the vertical direction, and the double-headed arrow Z indicates the front-back direction. In the present invention, the front direction in the front-rear direction Z means a direction from the rear surface portion 12 to the front surface portion 11 in the single body 1. The left and right directions mean the left and right directions when the single body 1 is viewed in the direction from the front surface portion 11 to the rear surface portion 12. In the single body 1, the vertical direction Y is sometimes referred to as the vertical direction.

1 and 2, the front surface portion 11 of the single body 1 includes a first air blowing surface 13 and a pedestal portion 14, and the rear surface portion 12 is the ambient air or room air that is the ambient air of the single body 1 from the direction indicated by the arrow A. It is formed so that it can be taken. A chamber portion 16 is formed between the front surface portion 11 and the rear surface portion 12, and a preferable chamber portion 16 takes in ambient air and can blow out the air from the first air blowing surface 13 or introduced ambient air. A filter such as a HEPA filter for filtering air, a rectifying unit (both not shown) including a honeycomb plate and a punching plate, etc. are incorporated, and a uniform flow of clean air is supplied from the first air blowing surface 13. It can blow out in the direction shown by arrow B. The first air blowing surface 13 includes a non-breathable edge portion 17 connected to each of the chamber portion 16 and the pedestal portion 14, and the portion surrounded by the edge portion 17 has a coarse breathable mesh plate 18. The mesh plate 18 protects the rectifying unit and the like set inside the chamber portion 16. The edge portion 17 includes edge portions 17a and 17b (see FIG. 2) extending in parallel with each other in the vertical direction Y, and edge portions 17c and 17d extending in parallel with each other in the width direction X. Is separated by a dimension F _X (see FIG. 2), and the edge 17c and the edge 17d are separated by a dimension F _Y. The dimensions F _X and F _Y are the width and height in a substantial sense on the first air blowing surface 13. As apparent from FIG. 2, the two single bodies 1 in the continuum 3, that is, the single bodies 1 _L and 1 _R , have first air blowing surfaces 13 _L and 13 _R , which are the first air blowing surfaces 13, respectively. Have. In the first air blowing surfaces 13 _L and 13 _R , the side edge portion 17 b and the side edge portion 17 a are adjacent to each other in parallel, and are connected via the connector 2.

Connector 2 is attached to a single 1 _L and a single 1 _R so as to straddle between the side edges 17a of the side edge portion 17b and the single 1 _R unitary 1 _L. Connector 2 also single ₁ L, _{1 R} each side edge 17b, and the front of the 17a, the first air blowout face ₁₃ L, 13 second air blowout face 21 of the breathable located and forward _R And a non-breathable peripheral wall portion 22 extends rearward from the peripheral edge portion of the second air blowing surface 21, and the peripheral wall portion 22 has upper and lower parts fixed to the single members 1 _L and 1 _R , respectively. Mounting portions 23 and 24 are included. The attachment portions 23 and 24 include bolt insertion holes 26 and are fixed to the single units 1 _L and 1 _R using bolts (not shown). The second air blowing surface 21 has a width W (see FIG. 3) in the width direction X and a length L in the vertical direction Y. The width W has a dimension defined in FIG. 3 to be described later, and the length L is a first air dimension that is a distance between the upper edge 17 c and the lower edge 17 d of the edge 17 of the first air blowing surface 13. balloon surface 13 substantially height F _Y be the same size or a slightly than its separation dimension of, for example, is preferably a 5~10mm oversized, the upper edge 17e of the upper edge 17c and the lower edge It is also possible to match the size with the lower edge 17f of the portion 17d. A plurality of vent holes 31 are formed on the second air blowing surface 21 so as to be uniformly distributed. The hole diameter and distribution pattern of the vent holes 31 can be designed as appropriate. For example, holes with a hole diameter of 0.5 to 5 mm can be arranged in a staggered arrangement within a pitch range of 1 to 8 mm.

FIG. 3 is a diagram showing a cross section taken along line III-III in FIG. 1. In the connector 2, the left portion 22 _L and the right portion 22 _R facing each other in the width direction X in the peripheral wall portion 22 are separated by a width W. The width W is also the width of the rear surface side of the second air blowing surface 21 and spans between the adjacent side edge portions 17b and 17a and is formed inside the side edge portion 17b. and the surface 13 _L, have dimensions that reaches into a first air blowout face 13 _R formed on the inner side of the side edge portion 17a. Portions 22 _T and 22 _B (see FIG. 2) connected to the attachment portions 23 and 24 in the peripheral wall portion 22 are separated by a length L. The peripheral wall portion 22 defines a rear opening 25 in the connector 2 by these portions 22 _L , 22 _R , 22 _T , and 22 _B. In the left portion 22 _L and the right portion 22 _R that are separated by the width W, the left portion 22 _L is located in front of the first air blowing surface 13 _L in the single body 1 _L , and the left portion 22 to form a vent passage 32 _L having a dimension _{G L} between the _L and the edge 17b. Also, to form the air passage 32 _R having dimensions _{G R} between the right portion 22 _R and the edge 17a rightward portion 22 _R is positioned in front of the first air blowout face 13 _R at a unit _{1 R} ing. Dimension K from the edge of the edge 17b to the edge of the edge 17a is the width of the portion having no to blow air towards the single 1 _L, 1 rear opening 25 either from the connector 2 also show _R. In continuous body 3, since is possible to maintain the cleanliness class of the air in front of the connector 2 according to the dimensions K increases to a high level is difficult, and single 1 _L so as not to size K exceeds 25 mm 1 It is preferable to join _R together.

The peripheral wall portion 22 has a depth J in the front-rear direction Z. There is a clearance H between the peripheral wall portion 22 and each of the first air blowing surfaces 13 _L and 13 _{R in} each of the single bodies 1 _L and 1 _R. Although the depth J is a dimension that should be in the range of 5 to 300 mm, it is preferable to set the depth J to 5 to 50 mm in order to prevent the inner volume of the connector 2 from being increased. In the connector 2 having such a depth J, the air CA that exits the first air blowing surface 13 and flows in from the ventilation paths 32 _L and 32 _R is easily diffused throughout the width W of the connector 2. The clearance H is preferably 5 mm or less, and the connecting portion 2 at such a clearance H is excellent in preventing air from entering the inside of the connector 2 from the clearance H. Note that the dimension _{G R} of dimension _{G L} and the air passage 32 _R of the vent passage 32 _L, preferably in the range of 5 to 20 mm, also be match or nearly match each other preferable.

FIG. 4 is a view similar to FIG. 3 showing an example of the embodiment of the present invention. In continuum 3 in FIG. 4, a single _{1 L} and a single _{1 R} is separated in the width direction X, the space 36 having a width M between the two ₁ L, _{1 R} occurs. However, a space between the space 36 and the rear opening 25 of the connector 2 is closed by a blind plate 37 so as not to allow ventilation. The blind plate 37 has a length that is at least the same as the length L of the connector 2 and has a width that does not exceed the dimension K between the edges of the edge 17b and the edge 17a. It fixes to appropriate parts, such as connector 2 and edge parts 17b and 17a. In such a continuum 3, when air CA from the single units 1 _L and 1 _R , for example, clean air, flows into the connector 2, the unfiltered ambient air is separated from the back of the single units 1 _L and 1 _R. Intrusion into the connector 2 through 36 can be prevented. However, the dimension K is unnecessarily large in continuum 3, for example, exceed 25mm, since not preferred in terms of maintaining the cleanliness class of the continuum 3 to a high level, a single 1 _L and a single 1 _R Is preferably close so that the width M does not exceed 20 mm so that the width M of the space 36 is as small as possible.

FIG. 5 is a diagram illustrating an embodiment of the present invention, and (a) to (c) illustrate how to arrange a plurality of single bodies 1. FIG. 5A is a front view of the two single units 1 in FIG. 1, and the single units 1 _L and 1 _R, which are the single units 1, are adjacent to each other so that they are arranged side by side in the horizontal direction. It is connected via A chain line in the figure indicates a portion where the simple substances 1 _L and 1 _R are in contact with each other. In each of the single units 1 in the illustrated example, a chamber portion (not shown) that houses a member such as a rectifying unit is formed behind the first air blowing surface 13.

  In the continuum 3 in FIG. 5B, the first air blowing surfaces 13 of the two single bodies 1 are adjacent to each other in the vertical direction Y perpendicular to the width direction X in FIG. Are lined up. The upper edge portion 17c of the first air blowing surface 13 in the single unit 1 located below (b) and the lower edge portion 17d of the first air blowing surface 13 in the single unit 1 located above are parallel to each other. In contact with or in close proximity to. The connector 2 extends so as to reach the side edges 17a and 17b in the width direction X, and straddles between the upper edge 17c and the lower edge 17d in the vertical direction Y. Reached to each. In the continuous body 3 having such a configuration, the area of the first air blowing surface 13 of the single body 1 can be expanded in the vertical direction Y. In each of the single bodies 1 in (b), a chamber portion (not shown) for housing a member such as a rectifying unit is formed behind the first air blowing surface 13.

  In the continuum 3 of FIG. 5C, the four first air blowing surfaces 13 of the single unit 1 are arranged in the width direction X and the vertical direction Y. In this continuous body 3, a connecting tool 2a extending in a series in the width direction X and two connecting tools 2b extending in the vertical direction Y are used. A blind plate 42 indicated by an imaginary line is provided at the foremost part in the front-rear direction Z (see FIG. 1) of the portion 41 where the corners of the four single bodies 1 are gathered, and between the corners. Air that has not yet been filtered from the formed space (not shown) is prevented from entering the connector 2a. In the continuum 3 of FIG. 5C, the vertical plate Y illustrated in FIG. 4 with respect to the adjacent single bodies 1 and 1 and the vertical plate Y extending in the vertical direction Y illustrated in FIG. A blind plate (not shown) can be used. In each of the single bodies 1 in (c), a chamber portion (not shown) for housing a member such as a rectifying unit is also formed behind the first air blowing surface 13.

FIGS. 6 and 7 are similar to FIGS. 1 and 3, but in FIGS. 6 and 7, sampling is performed by a particle counter (not shown) used to confirm the effect of the connector 2 in the continuum 3. Positions, that is, measurement points P _{1 to} P ₃ and Q _{1 to} Q _{3 of the} number of particles are shown. As the particle counter, KC-18 manufactured by Lion was used. The single 1 _L and a single 1 _R in continuum 3 of FIGS. 6 and 7 (see also FIG. 3) identical with those having the following specifications, it is usable as a push hood clean bench.

(Specification of air blower unit)
Width F _X and height F _{Y of} the first air blowing surfaces 13 _L and 13 _R (see FIG. 2): 600 mm each
Air blowing speed: 0.5m / sec
Chamber 16: Built-in HEPA filter (having 0.3 μm particle collection efficiency 99.97%), rectifying honeycomb plate, punching plate for protecting against honeycomb plate, air blowing fan, and the like.

A connector 2 having the following specifications was used (see also FIG. 3).
(Specifications of connector 2)
The width W was varied in the range of 11 to 75 mm.
Depth J: 10mm
Clearance H with first air blowing surfaces 13 _L and 13 _R : 0 mm
Second air blowing surface 21: Vent holes 31 having a diameter of 2 mm were arranged at a pitch of 3 mm so as to form a staggered arrangement of 60 degrees.

The dimensions G _L and G _{R of the} air passages 32 _L and 32 _R were changed in the range of _{3 to} 25 mm. However, to adjust the mounting of the connector 2 so that the size is the same of the dimensions and G _R of G _L. In addition, when confirming the effect of the coupler 2, the dimension K in the continuous body 3 was changed in the range of 3 to 25 mm.

Table 1 shows the cleanliness classes measured using the continuum 3 of FIGS. Continuum 3, dimension _G L, _{G R} and, by changing the dimension K, 7.4.3 c of JIS B 9922 detects the number of particles in the measurement points _{P 1 ~P 3, Q 1 ~Q} 3 The cleanliness class shown in Table 2 in the same standard when m = 6 in 2.1)) was determined. The x mark in the table means that the cleanliness class value exceeded 8 and the cleanliness could not be maintained.

FIG. 8 is a front view of the continuum 3 showing the wind speed measurement point, which is the installation position of the anemometer sensor 46 for measuring the wind speed distribution in the continuum 3. The anemometer is model 1560 made by Nippon Kanomax. used. All of the sensors 46, the first air blowout face ₁₃ L, there from 13R _R at a position 100mm apart to the front installation position as pitch and if the sensor 46 is 100mm in the width direction X and the vertical direction Y Adjusted. The continuum 3 is the one used in FIGS. 6 and 7, but the connector 2 has the depth J in FIG. 7 set to 10 mm and the width W set to 15 mm. The dimensional K in continuum 3 was set at 5 mm, the dimension _G L, also _{G R} was set to 5 mm.

Table 2 shows the wind speed distribution for the continuum 3 obtained under these measurement conditions. From the wind speed distribution in Table 2, the average wind speed _VA can be obtained by the following equation.

V _A = (V ₁ + V ₂ + V ₃ +... + V _n ) / n
V ₁ , V ₂ , V ₃ ... V _n : Measurement value by each sensor n: Number of sensors (number of measurement points)

Using the above formula, the average wind speed V _A obtained from the wind speed distribution in Table 2 was 0.49 m / sec. From the average wind speed VA and the wind speed distribution in Table 2, the variation in wind speed can be obtained by the following equation.

(V _max −V _A ) / _VA × 100 = variation on the positive side (%)
(V _min −V _A ) / V _A × 100 = minus side variation (%)
V _max : Maximum wind speed V _min : Minimum wind speed

In Table 2, V _max is 0.56 m / sec, plus side variation is 13.7%, V _min is 0.28 m / sec, minus side variation is 43.1%. It was. Therefore, the continuum 3 in the illustrated example has a structure and performance determined by the Minister of Health, Labor and Welfare within the range of variation of wind speed of ± 50%, that is, based on the provisions of Article 16-2 of the Occupational Safety and Health Act, organic solvent poisoning prevention regulations. It is within the range defined by the notifications stipulated, and is suitable for use as a device for blowing a uniform air flow.

  The connector 2 according to the present invention is such that the shape of the second air blowing surface 21 at the cut surface along the line III-III in FIG. 2 spreads flat in the width direction X as illustrated in FIG. An arc, U-shape, V-shape or the like that protrudes forward may be drawn.

  The connection tool 2 and the continuum 3 obtained by using the connection tool 2 according to the present invention are suitable for use as an air blowing device that can blow out a uniform flow of clean air. It can be used as an air blowing device for blowing out a stream, or can be used as a simple air blowing device. Moreover, the connector 2 and the continuous body 3 according to the present invention can be used as a push-side hood in a push-pull type hood for a clean bench or as a push-side hood in a push-push type hood. .

1, 1 _L , 1 _R simple substance 2 connector 3 continuum 13, 13 _L , 13 _R first air blowing surface 17 edge 21 second air blowing surface 22 peripheral wall portion 22 _B , 22 _T portion 25 rear opening 31 air blowing Hole L Length W Width

Claims (8)

A plurality of air blowing devices each having a front and a rear and having a first air blowing surface formed at the foremost portion capable of blowing air from the rear toward the front are arranged at an edge of the first air blowing surface. A breathable coupling device that enables the formation of a continuous body of the air blowing device by joining parts of the parts in a manner adjacent to each other in parallel;
The connector has a second air blowing surface in which a plurality of air blowing holes are distributed in a front portion thereof, and a rear portion thereof is positioned in front of each of the adjacent edges in the continuum and the first A rear opening through which a part of air from each of the air blowing surfaces flows is defined by a non-breathable peripheral wall portion extending rearward from the second air blowing surface, and the width of the rear opening is adjacent The connector according to claim 1, wherein the connector is formed so as to reach each of the first air blowing surfaces located inside each of the edges across the edges.   The said coupling tool is a coupling tool of Claim 1 currently formed so that the length of the direction in alignment with each said adjacent edge part may exceed the length of each said edge part.   The connector according to claim 1, wherein the connector has a width that can exceed each of the adjacent edge portions in parallel with each other by 3 to 25 mm.   The said peripheral wall part is a connection tool of Claim 2 or 3 including the part which closes the both ends of the said rear part opening in the direction which the said edge part mutually parallels in a non-air-permeable state.   The coupling tool according to any one of claims 1 to 4, wherein a plurality of the air blowing devices can be connected in at least one of a horizontal direction and a direction perpendicular to the horizontal direction. By joining a plurality of air blowing devices, which have a front and a rear, and have a first air blowing surface formed at the foremost part, which is capable of blowing air from the rear toward the front, in a manner adjacent to each other. A continuum of the air blowing device obtained,
A plurality of the air blowing devices are adjacent to each other in such a manner that a part of the edge portion of the first air blowing surface is parallel to each other, and the adjacent air blowing device is ventilated in front of each of the parallel edges. Sex connector is located,
The connector has a second air blowing surface in which a plurality of air blowing holes are distributed in a front portion thereof, and a part of air from each of the first air blowing surfaces in the continuum flows into the rear portion thereof. A rear opening is defined by a non-breathable peripheral wall portion extending rearward from the second air blowing surface, and the rear opening straddles between the parallel edges and the inner sides of the edges. The second air after reaching a part of each of the first air blowing surfaces located on the first air blowing device and allowing a part of the air from each of the joined air blowing devices to flow into the connector from the rear opening. The said continuous body characterized by being able to blow out ahead of the said connection tool from a blowing surface.   The continuous body according to claim 6, wherein a separation dimension between a part of the edge portions arranged in parallel is in a range of 0 to 20 mm.   The continuous body according to claim 6 or 7, wherein the air blowing device is used as a push-side ventilator in either a push-pull type ventilator or a push-push type ventilator.

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