JP2008215805A - Ventilation filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ventilation filter enhanced in filtration effect and sound absorbing effect. <P>SOLUTION: Moisture, dust and exhaust gas particulates contained in air flowing into each flow passage in the ventilation filter 1 are efficiently collected, removed, filtrated, and cleaned by a first cleaning filter 8, a second cleaning filter 9, and a third cleaning filter 12. Since the first cleaning filter 8, second cleaning filter 9, and third cleaning filter 12 can be removed from a ventilation port when the screwing of a fixing bolt 15 with a fixing nut 13 is released, these filters can be re-used after cleaning and replacement. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ventilation filtration device that filters moisture, dust, exhaust particulates and the like contained in the air and absorbs outdoor noise.

  Conventionally, as shown in Non-Patent Documents 1 to 3, ventilators are installed in ventilation openings provided on the walls of houses, buildings, condominiums, and the like for the purpose of circulating indoor air. is there.

In such a ventilator, moisture, dust and exhaust particulates contained in the air are removed from the gap between the insect screens covered by the outdoor rainproof cover and the air by utilizing the pressure difference generated between the inside and outside. Filter through an inflow pipe. The ventilator is provided with sound absorbing means constituted by pasting glass wool on sound absorbing plates arranged at predetermined intervals in the vertical direction.
IM Co., Ltd., general catalog of ventilation equipment, VOL.11, 2005.8, Internet <http://www.imcompany.com/> UNIX Co., Ltd., ventilation equipment general catalog, VOL.3, 2005.8, Internet <http://www.unix-coltd.co.jp/> Sylfer Corporation, General catalog of ventilation equipment, 2005 edition, VOL.III, Internet <http://sylpha.co.jp/>

  By the way, in the sound absorbing means used in the conventional ventilation device described above, moisture, dust and exhaust particulates contained in the air are absorbed while being collected in glass wool or the like. Further, since this sound absorbing means is fixed in a complicated structure in the ventilation device, it is not possible to remove only the glass wool attached to the sound absorbing plate.

  Therefore, a large amount of dust and exhaust particles adhering to the glass wool cannot be removed and cannot be washed.

  Furthermore, dust and exhaust particulates left in the gap cannot be removed due to structural problems inside the ventilator, and they accumulate over time.

  In such a state, dust and exhaust particulates gradually flow into the interior along with the air flow, adhere to all places such as indoor walls and floors, and leave traces of dust and exhaust particulates. There was a problem that the environment could be polluted.

  Moreover, since moisture, dust, and exhaust particulates adhere to the sound absorbing means, there is a problem that the sound absorbing effect is reduced. Noise caused problems such as indoor human health and sleep, and reduced work efficiency.

  This invention is made | formed in view of the said situation, and it aims at providing the ventilation filtration apparatus which the filtration effect and the sound absorption effect improved.

In order to achieve the above object, the ventilation filtration device of the present invention comprises:
It is a ventilation filtration device installed on the wall of a building.

  ADVANTAGE OF THE INVENTION According to this invention, the ventilation filtration apparatus which the filtration effect and the sound absorption effect improved can be provided.

A ventilation filtration device according to an embodiment of the present invention will be described below with reference to the drawings.
The ventilation filtration device 1 according to the present embodiment efficiently collects, removes, filters, and purifies moisture, dust, exhaust particulates, and the like contained in the air, and absorbs sound to reduce outdoor noise. Is. As shown in FIG. 1, the ventilation filtration apparatus 1 is installed in a ventilation opening which is a through-hole provided in a wall of a building such as a house, a house, a building, or an apartment. The ventilation filtration device 1 uses a pressure difference generated between indoors and outdoors, and as shown in FIG. 1, pre-treatment air flows in from the outdoors, and post-treatment air flows out indoors.

  As shown in FIG. 1, the ventilation filtration device 1 includes an outdoor insertion pipe 2 and an indoor insertion pipe 3 that are inserted into a ventilation opening, an air introduction pipe 4 that is disposed on the outdoor side, an insect net 5, and an outdoor rainproofing. It has the cover 6 and the indoor ventilation grille 14 arrange | positioned indoors.

  Further, as shown in FIG. 1, the ventilation filtration device 1 includes a first purification filter 8 on the indoor side, a third purification filter 12 on the outdoor side, a first purification filter 8 and a third purification filter 12. A second purification filter 9 disposed between the first purification filter 8, an outdoor-side presser 10 and an indoor-side presser 11 that sandwich the second purification filter 9, a first purification filter 8, a second purification filter 9, and a second purification filter 9. A fixing bolt 15 for fixing the three purification filters 12 and the like, and a fixing nut 13 for screwing the fixing bolt 15 are provided.

  As shown in FIGS. 1 and 3, the fixing nut 13 is welded to the center of the air introduction pipe 4 and fixed to the air introduction pipe 4. In order to allow air to pass through, the air introduction pipe 4 is provided with, for example, four fan-shaped holes and quarter-circular holes. Between each of the four fan-shaped holes and the quarter-circular holes, for example, four ribs having a width of 4 mm to 6 mm are provided.

  The outdoor plug tube 2 and the indoor plug tube 3 are substantially cylindrical and have a flange portion 2a and a flange portion 3a, respectively. The outdoor insertion pipe 2 and the indoor insertion pipe 3 are disposed so that the opposite sides of the flange portion 2a and the flange portion 3a are in contact with a ventilation port which is a through-hole provided in a wall.

  Moreover, as shown in FIG.1 and FIG.3, the drainage groove 16 is formed in the bottom part in the outdoor insertion pipe 2. FIG. The drainage groove 16 communicates with the outdoors, and the water flowing into the ventilation filtration device 1 is drained to the outdoors.

The first purification filter 8 collects moisture, dust, exhaust particulates, and the like in the inflowing air, and removes the dust, and filters it roughly compared to the third purification filter 12. The first purification filter 8 is manufactured using a stitch bond nonwoven fabric made of synthetic fibers such as polyester and nylon, and is manufactured in a circular plate shape with a basis weight of 60 (g / m ² ) or less. is there.

The third purification filter 12 collects and removes dust particles having a small diameter that have passed through the first purification filter 8 and the second purification filter 9, and is finer than the first purification filter 8. Filter to make sure. The third purification filter 12 is manufactured using a stitch bond nonwoven fabric made of synthetic fibers such as polyester and nylon, and is manufactured in a circular plate shape with a basis weight of 200 (g / m ² ) or more. .

  The second purification filter 9 collects moisture, dust, exhaust particulates, etc. in the air that has passed through the first purification filter 8, etc., and removes dust, filters, and absorbs noise to reduce outdoor noise. It is. As shown in FIGS. 1 to 3, the second purification filter 9 includes a filter unit 9 a concentrically arranged in four layers, a one-side sound absorbing ring 23 and both-side sound absorbing rings 24, and a filter center shaft 28. Has been. As shown in FIGS. 1 and 2, the sectional structure of the second purification filter 9 is symmetric with respect to the axis of the filter center axis 28, and also with respect to the center line perpendicular to the axis of the filter center axis 28. Symmetric.

  An air flow path is formed by the space between the innermost filter unit 9a and the filter center shaft 28 and between the filter units 9a. Each space | interval of a flow path shall be 15 mm-30 mm, for example.

  Each filter unit 9 a is configured by connecting four filter members 91 a having the same shape by a one-side connection ring 22 or both-side connection rings 32. Each filter unit 9a has a cross-sectional structure that is symmetric with respect to the axis of the center axis and the center line perpendicular to the axis. In the cross-sectional structure of each filter unit 9a, two identical shapes that are concave with respect to the central axis are continuous from the outdoor to the indoor direction in which the air flows. In addition, the diameter of the filter member 91a which comprises each filter unit 9a changes with arrangement positions of each filter unit 9a. The filter member 91a constituting the outermost filter unit 9a is partially different in shape.

  Each filter member 91a is formed with an inclined surface 21 having an angle of 40 degrees, and a protruding portion 31 formed continuously with the inclined surface 21, and the inner surface of the filter member 91a is formed by the inclined surface 21 and the protruding portion 31. A first groove 26 is formed. The first groove 26 has a V-shaped cross section.

  The 1st groove | channel 26 and the inclined surface 21 rotate air by contacting with the air which flowed into the flow path, and generate | occur | produce a centrifugal force in the flow of air. Half of the first grooves 26 constitute a negative pressure zone 27 described later. Further, as shown in FIG. 1, the first groove 26 on the most outdoor side also plays a role of draining the accumulated water to the outside through the drainage groove 16 described above.

  Each filter member 91 a has a second groove 25 formed continuously with the inclined surface 21. The second groove 25 is formed on the side opposite to the protruding portion 31 continuous with the inclined surface 21 and on the outside of the filter member 91a. The cross section of the second groove 25 is C-shaped. The second groove 25 constitutes a negative pressure zone 27 described later, and collects dust, exhaust particulates, and the like.

  The one-side sound absorbing ring 23 and the two-side sound absorbing rings 24 are for reducing noise outdoors. The sound absorbing rings 24 on both sides are provided so as to cover the both side connecting rings 32 that connect the filter members 91a mainly from the center in FIG. The one-side sound absorbing ring 23 is provided so as to cover the one-side coupling ring 22 that couples the filter members 91a mainly on the indoor side or the outdoor side in FIG. 2 from one side, and a filter center shaft member 28a described later. Are provided so as to cover the one-side connecting ring 22 that connects the two from one side.

  The one-side sound absorbing ring 23 and the two-side sound absorbing rings 24 are formed of, for example, a sponge made of a foamed resin material.

  Since one side of the one-side sound absorbing ring 23 and the two-side sound absorbing rings 24 is provided with a step in the vertical direction in one flow path, outdoor noise can be reduced step by step.

  The filter center shaft 28 is configured by connecting four filter center shaft members 28 a having the same shape by a one-side connection ring 22. Two filter center shaft members 28a are connected so as to face each other. Each filter center shaft member 28a is connected to form a bolt through hole 29 into which the fixing bolt 15 is inserted. In addition, each filter center shaft member 28a is formed with a second groove 25 that is continuous with the inclined surface 281a, similarly to each filter member 91a.

  In one flow path, as shown in FIG. 2, 10 effective negative pressure zones 27 are formed on the side (air outflow side) opposite to the air inflow side of the member that blocks the air flow. Specifically, two first grooves 26 opened to the air outflow side, four second grooves 25, and a total of four one-side sound absorbing rings 23 or both sound absorbing rings 24 on one air outflow side 10. It is a place.

  The first groove 26 and the inclined surface 21 generate centrifugal force in the flow of air flowing into the flow path, so that dust in the air, exhaust particulates, etc. flow along the wall surface in the filter unit 9a, Moisture moisture in the air adheres to the wall surface in the filter unit 9a. The water adhering to the wall collects dust, exhaust particles, etc. in the air. The negative pressure zone 27 collects dust, exhaust particles, etc. in the air and removes them. ,Filter.

  Next, a method for installing the ventilation filtration device 1 of the present embodiment at a ventilation opening of a building will be described.

  First, the outdoor insertion pipe 2 and the indoor insertion pipe 3 are arranged in a ventilation port made of a through hole so that the opposite sides of the flange portion 2a and the flange portion 3a are in contact with each other, and the flange portion 2a is placed on the outdoor outer wall surface. Affixing and the flange part 3a are affixed on an indoor inner wall surface.

  Next, the air introduction pipe 4 is inserted into the outdoor insertion pipe 2 from the outdoor side. A first purification filter 8 is inserted into the outdoor insertion pipe 2 from the indoor side of the air introduction pipe 4. The second purification filter 9 sandwiched by the outdoor side presser 10 and the indoor side presser 11 is inserted into the outdoor insertion tube 2 and the indoor insertion tube 3 from the indoor side of the first purification filter 8. Further, the third purification filter 12 and the indoor ventilation grill 14 are sequentially inserted into the indoor insertion tube 3 from the indoor side of the indoor side presser 11.

  Next, the fixing bolt 15 is inserted from the indoor side into the through hole 14a of the indoor ventilation grille 14, the through hole 12a of the third purification filter 12, the through hole 11a of the indoor side presser 11, the bolt through hole 29, and the indoor side presser. 10 is inserted into the through-hole 10a and the through-hole 8a of the first purification filter 8, and is screwed into and fixed to the fixing nut 13 fixed to the air introduction tube 4. Thereby, the center of the second purification filter 9 can be maintained.

  Next, as shown in FIG. 4, the indoor ventilation grille 14 is fixed to the flange 3 a of the indoor insertion pipe 3 by the indoor ventilation grille fixing screw 17. Moreover, after covering the outdoor opening with the insect screen 5 and the outdoor rainproof cover 6, a silicon agent is applied to the outer periphery thereof and adhered to the outer wall surface. The insect net 5 is fixed to the flange 2 a of the outdoor plug-in pipe 2 by the insect net fixing screw 7. Thereby, the integrity of the ventilation filtration device 1 is maintained, and the installation of the ventilation filtration device 1 at the ventilation opening of the building is completed.

  Thus, according to the ventilation filtration device of the present embodiment, moisture, dust, exhaust particulates, etc. contained in the air flowing into each flow path in the ventilation filtration device 1 are removed from the first purification filter 8 and the second purification filter 8. The purification filter 9 and the third purification filter 12 can efficiently collect, remove dust, filter, and purify.

  In particular, in the second purification filter 9, by providing the first groove 26 and the inclined surface 21, centrifugal force is generated in the flow of air flowing into the flow path, and dust and the like are easily collected. Further, in the second purification filter 9, by providing the second groove, the negative pressure zone 27 is configured to easily collect dust, exhaust particulates, and the like.

  Moreover, according to the ventilation filtration apparatus of this embodiment, since one side of the one-side sound absorbing ring 23 and the two-side sound absorbing rings 24 is provided with a step in the vertical direction in one flow path, the sound absorbing effect is improved. In addition, outdoor noise can be reduced step by step.

  Furthermore, according to the ventilation filtration device of the present embodiment, even when dust, exhaust particulates, etc. are accumulated in the first purification filter 8, the second purification filter 9, and the third purification filter 12, they are fixed. The first purification filter 8, the second purification filter 9, and the third purification filter 12 can be removed from the ventilation opening by releasing the screwing of the bolts 15 and the fixing nuts 13. Or you can continue to use it by replacing the filter. For this reason, the filtration effect and sound absorption effect of a ventilation filtration apparatus can be kept long.

  Moreover, according to the ventilation filtration apparatus of this Embodiment, since the drainage groove 16 is formed in the bottom part of the outdoor insertion pipe 2, the unnecessary water in an apparatus can be discharged | emitted outdoors.

  While the present invention has been described with reference to the embodiment, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the present embodiment, the angle of the inclined surface 21 is 40 degrees, but 40 to 45 degrees is an appropriate angle, for example.

   Moreover, in the said embodiment, although the filter unit 9a was arrange | positioned at 4 layers, if one or more flow paths are formed, the number of the layers of the filter unit 9a will not be limited. Further, the number of filter members 91a constituting the filter unit 9a is not limited to four.

  Moreover, although the said embodiment demonstrated the case where a ventilation port was a through-round hole, even if a ventilation port is not a round hole but a polygon, this invention is applicable.

  In the above embodiment, an example in which the first purification filter 8, the second purification filter 9, and the third purification filter 12 are provided has been described, but only the second purification filter 9 may be provided. Further, the second purification filter 9 and any one of the second purification filter 9 and the third purification filter 12 may be provided.

  Moreover, although the example using the fixing bolt 16 and the fixing nut 13 has been described in the above embodiment, it can be screwed into the through-hole with the fixing bolt from both sides. Moreover, although the example using the one side connection ring 22 and the both side connection ring 32 was demonstrated, you may make it use the one side sound absorption ring 23 and the both sides sound absorption ring 24 also as a connection ring.

It is sectional drawing showing the whole ventilation filtration apparatus structure concerning embodiment of this invention. It is sectional drawing showing the structure of the 2nd purification filter with which the ventilation filtration apparatus shown in FIG. 1 was equipped. It is arrow sectional drawing in the AA line in FIG. It is a front view of the ventilation filtration apparatus seen from the B direction in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation filtration apparatus 2 Outdoor insertion pipe 3 Indoor insertion pipe 4 Air introduction pipe 5 Insect net 6 Outdoor rainproof cover 8 First purification filter 9 Second purification filter 9a Filter unit 12 Third purification filter 13 For fixing Nut 14 Indoor ventilation grill 15 Fixing bolt 16 Drainage groove 21 Inclined surface 22 One side connection ring 23 One side sound absorption ring 24 Both side sound absorption ring 25 Second groove 26 First groove 27 Negative pressure zone 28 Filter center shaft 28a Filter center shaft member 281a Inclined surface 29 Bolt through hole 31 Protruding portion 32 Both side connecting ring 91a Filter member

Claims (1)

  A ventilation filter installed on the wall of a building.

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