WO2005077492A1 - エアフィルタ - Google Patents
エアフィルタ Download PDFInfo
- Publication number
- WO2005077492A1 WO2005077492A1 PCT/JP2004/001724 JP2004001724W WO2005077492A1 WO 2005077492 A1 WO2005077492 A1 WO 2005077492A1 JP 2004001724 W JP2004001724 W JP 2004001724W WO 2005077492 A1 WO2005077492 A1 WO 2005077492A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- air filter
- rib
- ribs
- reinforcing plate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/06—Details of supporting structures for filtering material, e.g. cores
Definitions
- the present invention relates to an air filter that creates an ultra-clean space such as a clean room for producing liquid crystals and semiconductors.
- clean rooms for production of LCDs and semiconductors have a structure in which air filters are laid all over the ceiling and air is circulated by large fans.
- an air filter having a size of 61 mm in length and 610 mm in width has been used.
- kraft paper is attached to both sides in the longitudinal direction of the filter paper that has been corrugated, as a means for protecting the filter medium of the air filter.
- a reinforcing member made of a wire mesh is stretched on the bottom surface, and in order to further reinforce this reinforcing member, a bent portion is provided on both sides of the wire mesh so as to fit into the component.
- a wire mesh with a bead on the flat part is used.
- Japanese Patent No. 3,337,676 discloses a zigzag A mesh material is provided at least on the downstream side of the filter pack, which is formed of a filter medium with a plied filter material, and one or more ribs are provided on the mesh material to fill around the mesh material.
- the inside of the evening frame is disclosed as an air filter embedded and fixed in a notch provided in the wall.
- the air filter is formed by embedding and fixing the periphery of the mesh in a notch provided in the inner wall of the filter frame, thereby increasing the strength of the entire mesh, preventing deformation of the filter pack and strengthening the protection of the filter medium. I have.
- the present invention maintains the same uniform blowing wind speed and trapping efficiency as before, and increases the deformation of the filter pack without increasing the pressure loss in a large-sized air filter of 4 feet long by 4 feet wide.
- Another object of the present invention is to provide an air filter that can be used for a long time by further improving the effect of preventing filter media from being damaged. Disclosure of the invention
- An air filter according to the present invention is an air filter in which two or more nets are arranged at least downstream of the filter pack and accommodated in a filter frame to achieve the above object. At least one end of the mesh is bent to form two or more ribs, a reinforcing plate is provided along the ribs, and the backs of the ribs are abutted and fixed to a fill frame. .
- the air filter according to claim 2 is the air filter according to claim 1, wherein the filter knock is formed of a pleated filter medium folded in a zigzag shape, and Are provided in parallel with the pleats of the filter medium.
- the air filter according to claim 3 is the air filter according to claim 2, wherein the rib is provided so as to be immersed between the folds of the pleats of the filter medium. It is characterized by.
- the air filter according to claim 4 is the air filter according to claim 1, wherein an end of the rib is folded, a reinforcing plate is disposed between the folded portion and the rib, and the folded is formed. Wherein the reinforcing plate is pressed into contact with the rib at a portion to be fixed.
- An air filter according to a seventh aspect is the air filter according to the first aspect, wherein the reinforcing plate has a thickness of 0.5 mm to 2 mm.
- the air filter according to claim 8 is the air filter according to claim 1, wherein the reinforcing plate is a corrosion-resistant metal plate.
- An air filter according to a ninth aspect is the air filter according to the first aspect, wherein the mesh is fixed by embedding at least a pair of ends in cuts provided in a filter frame.
- FIG. 1 is a plan view showing an air filter according to an embodiment of the present invention.
- FIG. 2 is an explanatory diagram showing a state in which the reinforcing plate is fixed to the rib according to the embodiment of the present invention.
- FIG. 3 is an enlarged partial cross-sectional view of the air filter shown in FIG. 1, taken along the line III-III.
- FIG. 4 is a diagram showing the change over time of the deformation of the filter media of the example of the present invention and the conventional example.
- FIG. 5 is a cross-sectional view of a conventional air filter.
- the air filter according to the present invention comprises two or more nets at least downstream of the filter pack.
- An air filter in which a net is arranged and housed in a frame, wherein at least one end of the net is bent to form two or more ribs, and a reinforcing plate is provided along the rib.
- the rear surfaces of the ribs abut against each other and are fixed to a fill frame.
- the air filter of the present invention is a net-like material whose strength has been improved by ribs and reinforcing plates, mainly in a large-sized air filter having a length of 9 16 mm or more and a thickness of 30 to 29 mm, The heavy-duty filter pack is prevented from being deformed in the downstream direction for a long time, and the life of the air filter can be extended.
- a filter medium made of glass fiber, synthetic resin fiber, PTFE, or the like is folded in a zigzag shape, and at that time, a gap between the crests of the filter medium is maintained by inserting a corrugated separator, or Prior to folding the filter medium, a lip-on hot melt resin may be applied in advance in the flow direction of the filter medium to form an interval maintaining portion, and the interval between the crests may be maintained.
- both ends of the zigzag-folded filter medium that are parallel to the pleats are parallel with an adhesive, and both ends of the zigzag shape that is orthogonal to the pleats of the filter medium are sealed with an airtight sealing material. Fixed to the Phil frame.
- a metal plate such as aluminum and stainless steel, a resin plate such as an extruded resin plate such as PC, a wooden plate such as plywood, and the like can be used.
- a resin or metal lath net having a thickness of 0.5 mm or more and an opening ratio of 30 to 80% can be used.
- the strength of the entire net can be increased by embedding and fixing at least a pair of ends of the net in a notch provided in the inner wall of the filter frame.
- the net has at least one end bent to form at least one rib on one net. Then, the back of the ribs of the mesh
- the reinforcement effect has been improved.
- the filter pack is formed by bending one end of each of the two meshes in order to effectively prevent the downstream deformation of the filter pack. It is desirable that a reinforcing portion in which the backs of the two ribs abut each other is arranged at least in the center of the filler pack.
- both ends of the mesh arranged at the center are bent to form two ribs on one mesh.
- each of the mesh members arranged on both sides is bent to form one rib, and the ribs formed at both ends of the mesh member arranged at the center portion and one end of the mesh members arranged at both sides are formed.
- the butted portions in which the back surfaces of the ribs formed by bending the portions abut against each other, are arranged on both sides of the filter pack.
- the abutting portions may be arranged at equal intervals of 50 mm to 100 mm using a plurality of nets.
- the strength of the entire net can be increased by embedding and fixing at least a pair of ends of the net in a notch provided in the inner wall of the filter frame.
- the air flows from the upstream side to the downstream side along the ribs, so that the turbulence of the airflow can be suppressed.
- the height of the rib can be secured by utilizing the immersion space, and the rib is arranged along the rib. Since the width of the reinforcing plate (the height when the reinforcing plate is erected along the ribs) can be secured, the strength of the mesh can be further improved.
- a ratio X 1 ZX between the thickness X of the air filter and the height X 1 of the rib is 1/5 to 2 Z 3 as the height of the rib.
- the ratio X 1 ZX is less than 1 Z5, the reinforcing effect of the ribs is small and the strength of the mesh material cannot be improved. This is because it cannot be prevented.
- the clean room in which the air filter is installed may use organic gas for sterilization, etc., and this gas is often corrosive.
- the strong plate is preferably a metal plate having corrosion resistance, such as stainless steel or anodized aluminum.
- the reinforcing plate preferably has a thickness of 0.5 mm to 2 mm. If the thickness of the reinforcing plate is less than 0.5 mm, the reinforcing effect is small, which is not preferable. If it exceeds 2 mm, the pressure loss increases, which is not preferable.
- the reinforcing plate when the reinforcing plate is folded back at the end of the rib, and when the folded portion presses and fixes the reinforcing plate to the plane of the rib, the rib and the folded portion are fixed so that the reinforcing plate is wound around the rib. Therefore, the thickness of the reinforcing portion for reinforcing the mesh can be increased by the rib, the folded portion, and the reinforcing plate, and the strength of the mesh can be further improved. For this reason, the deformation force of the filter pack, which gradually drips in the downstream direction of the air due to its own weight with the passage of time, is stably prevented for a long time by the mesh material.
- the port and the like project from the ribs as if a reinforcing plate was attached to the ribs with a port or rivet.
- the dead zone is not formed due to the disturbance of the airflow passing through the air.
- the product does not vary depending on the degree of welding, so that it is possible to improve the product yield and provide an air filter of stable quality.
- the cut surface of the mesh does not face the filter medium, and there is an advantage that the furnace material is not damaged by the cut surface of the mesh. .
- FIG. 1 is a plan view showing an embodiment of an air filter according to the present invention
- FIG. 2 is an explanatory view for explaining a state in which a reinforcing plate is fixed to a rib
- FIG. 3 is an enlarged partial sectional view taken along line III-III in FIG.
- FIG. 5 is a sectional view of a conventional air filter.
- Example 1 :
- reference numeral 1 denotes an air filter, which is formed as a large-sized air filter having a length and width of 122 mm x 122 mm and a thickness of 75 mm, and a filter pack 10 having a folding width of 65 mm. And a 15 mm thick aluminum fill frame 20, 1 mm thick, and two aluminum lath nets 30 with an aperture ratio of about 70%.
- the filter medium 11 made of glass fiber constituting the filter pack 10 is folded in a zigzag shape, and the folds are fixed with a lipon-like hot melt resin to maintain a folding interval. .
- ends 1 la and 11 b parallel to the pleats of the filter medium 11 are fixed to the inner side walls 21 and 22 of the filter frame 20 with an adhesive 12, and the filter medium 11 is The zigzag ends 11 c and 11 d orthogonal to the pre-pitch are hermetically fixed to the inner side walls 23 and 24 of the filter frame 20 with a sealant 13.
- the two lath nets 30 and 30 are bent so that one end thereof stands vertically, and are immersed between the folds of the pleats of the filter medium 11 in parallel with the pleats provided on the filter medium 11.
- a rib 31 having a height of 30 mm was formed.
- the end of the rib 31 is folded to form a folded portion 3 la having an acute angle of about 30 degrees, along the rib, the thickness l mm, the rib height
- a stainless steel reinforcing plate 32 with a width of about 28 mm is arranged in accordance with the width of the folded part 3 1a.
- the folded part 3 1a is pressed from above the folded part 31a toward the rib, and the folded part 31a Then, the reinforcing plate 32 is rolled in, and the reinforcing plate 32 is pressed against the rib 31 and fixed. Then, as shown in FIG.
- the back surfaces of the ribs 31 and 31 formed at one end of the two lath nets 30 and 30 abut each other so as to pass through the center of the filter pack 10. Then, an abutting portion 33 of these ribs 31 and 31 is formed to form a lath net 30 and 30.
- the ends of the lath nets 30 and 30 parallel to the ribs 31 and 31 are embedded and fixed in cuts 25 provided on the downstream side of the inner side walls 21 and 22 of the fill frame 20. Then, the ends of the lath nets 30 and 30 orthogonal to the ribs 31 and 31 are attached to the inner side walls 23 and 24 of the fill frame 20 together with the ribs 31 and the reinforcing plate 32.
- the Filler Pack 10 is hermetically sealed with a sealing material 13. Since the rib 31 and the reinforcing plate 32 are fixed to the inner walls 23 and 24 of the fill frame 20 in this manner, the rib nets 30 and 30 are secured by the rib 31 and the reinforcing plate 32. The strength can be improved.
- Example 2 The same material and size as the air filter of Example 1 was used, except that the height of the rib was 11 mm and the width of the reinforcing plate was about 8 mm in accordance with the height of the rib. was the same as in Example 1.
- the ribs in Example 1 were reinforced so that the ratio XI between the height XI of the ribs and the air-fill thickness X was 1/5 or more (the ratio X / X was 0.20 or more).
- the deformation force of the filter pack which became heavier due to the increase in the area of the filter medium, was effectively prevented for a long period of time as the size of the air filter increased.
- the deformation of the air filter pack of Example 1 was suppressed to about 5 mm even after a lapse of one year from horizontal placement, and there was no breakage of the filter medium.
- the strength of the mesh material can be improved by the reinforcing effect of the ribs and the reinforcing plate, and until three months after the horizontal placing. It was confirmed that the deformation of the filter pack could be prevented to about 4 mm. However, if the ratio X 1 ZX of the rib height X 1 to the air filter thickness X is less than 15, the deformation of the filter pack cannot be prevented for a long period of one year or more. Six months later, the deformation of the filter pack became as large as 18 mm, and the filter medium was broken.
- the air filter according to the present invention is an air filter in which two or more meshes are arranged at least on the downstream side of a filter pack and housed in a filter frame, wherein at least one end of the mesh is bent.
- a plurality of ribs are formed, a reinforcing plate is provided along the ribs, and the back faces of the ribs are fixed to a filter frame by abutting the back faces of the ribs.
- the ribs are reinforced by a reinforcing plate, and the ribs are fixed to the filter frame with the back surfaces of the ribs abutting each other. Therefore, the reinforcing effect is improved, and the strength of the mesh material is dramatically improved. Can be.
- the air filter of the present invention is a net-like material whose strength has been improved by ribs and reinforcing plates, mainly in a large air filter having a length of at least 9 16 mm and a thickness of 30 to 29 mm.
- deformation of the heavier filter pack in the downstream direction can be prevented for a long time.
- the reinforcing plate is fixed so as to be pressed against the plane of the mesh at the folded portion obtained by folding the end of the rib, the thickness of the reinforcing portion for reinforcing the mesh by the rib, the folded portion and the reinforcing plate is reduced. This increases the strength of the mesh and further improves the deformation of the filter pack and the damage to the filter media.
- the rib when the end of the rib is folded at an acute angle to form a folded portion, the rib has a shape that is inclined at an acute angle upstream and downstream of the air filter, and is guided to the folded portion.
- the aerodynamic force S flows from the upstream side to the downstream side of the air filter along the rib and the reinforcing plate, and the pressure loss of the air filter can be prevented from rising.
- the height of the rib is set so that the ratio X1ZX of the thickness X of the air filter to the height X1 of the rib is 1/5 to 2Z3, the pressure loss of the air filter is reduced.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005512259A JP4456075B2 (ja) | 2004-02-17 | 2004-02-17 | エアフィルタ |
KR1020047008924A KR100945633B1 (ko) | 2004-02-17 | 2004-02-17 | 에어필터 |
PCT/JP2004/001724 WO2005077492A1 (ja) | 2004-02-17 | 2004-02-17 | エアフィルタ |
CNB200480000010XA CN100406103C (zh) | 2004-02-17 | 2004-02-17 | 空气过滤器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2004/001724 WO2005077492A1 (ja) | 2004-02-17 | 2004-02-17 | エアフィルタ |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005077492A1 true WO2005077492A1 (ja) | 2005-08-25 |
Family
ID=34857546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001724 WO2005077492A1 (ja) | 2004-02-17 | 2004-02-17 | エアフィルタ |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP4456075B2 (ja) |
KR (1) | KR100945633B1 (ja) |
CN (1) | CN100406103C (ja) |
WO (1) | WO2005077492A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020004504A1 (ja) * | 2018-06-29 | 2020-01-02 | 日東電工株式会社 | エアフィルタユニット及び空調機 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200465648Y1 (ko) * | 2012-09-03 | 2013-03-06 | 한국코엔주식회사 | 에어필터 |
CN105582753B (zh) * | 2016-02-29 | 2020-04-17 | 黄浩 | 一种分层组装式空气净化装置 |
CN106422592A (zh) * | 2016-06-23 | 2017-02-22 | 苏州骏发精密机械有限公司 | 一种固定管道内过滤器的夹具 |
DE102017000792B4 (de) * | 2017-01-30 | 2022-08-04 | Mann+Hummel Gmbh | Filterelement, Verfahren zu dessen Herstellung und Luftfilter |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6110740Y2 (ja) * | 1980-10-24 | 1986-04-05 | ||
JPH07241421A (ja) * | 1994-03-08 | 1995-09-19 | Daikin Ind Ltd | ろ過フィルタ |
JP3337676B2 (ja) * | 1999-06-24 | 2002-10-21 | 日本無機株式会社 | エアフィルタ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57169417U (ja) * | 1982-03-23 | 1982-10-25 | ||
JPS63115424U (ja) * | 1987-01-23 | 1988-07-25 | ||
CN2244647Y (zh) * | 1995-08-08 | 1997-01-08 | 天津市宇华净化设备厂 | 一种空气过滤器 |
JP4258787B2 (ja) | 1997-04-07 | 2009-04-30 | 株式会社 ダイサン | 射出成形金型とその成形品 |
CN2297237Y (zh) * | 1997-05-15 | 1998-11-18 | 烟台顿汉布什工业有限公司 | 可拆卸过滤器 |
CN2303673Y (zh) * | 1997-05-15 | 1999-01-13 | 烟台顿汉布什工业有限公司 | 一种可拆卸过滤器 |
JP3325554B2 (ja) * | 2000-06-14 | 2002-09-17 | 日本無機株式会社 | エアフィルタ |
KR100848259B1 (ko) | 2000-11-29 | 2008-07-25 | 이후근 | 부직포에 첨착활성탄을 압착시킨 필터 여재, 필터 여재 제작 방법 및 필터 여재를 구비한 케미칼필터 제작 방법 |
JP3568935B2 (ja) * | 2002-01-22 | 2004-09-22 | フロンティア産業株式会社 | エアーフィルタ |
KR200353553Y1 (ko) | 2004-03-17 | 2004-06-18 | 엘지전자 주식회사 | 진공청소기의 집진유니트 |
-
2004
- 2004-02-17 WO PCT/JP2004/001724 patent/WO2005077492A1/ja active Application Filing
- 2004-02-17 CN CNB200480000010XA patent/CN100406103C/zh not_active Expired - Fee Related
- 2004-02-17 KR KR1020047008924A patent/KR100945633B1/ko not_active IP Right Cessation
- 2004-02-17 JP JP2005512259A patent/JP4456075B2/ja not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6110740Y2 (ja) * | 1980-10-24 | 1986-04-05 | ||
JPH07241421A (ja) * | 1994-03-08 | 1995-09-19 | Daikin Ind Ltd | ろ過フィルタ |
JP3337676B2 (ja) * | 1999-06-24 | 2002-10-21 | 日本無機株式会社 | エアフィルタ |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020004504A1 (ja) * | 2018-06-29 | 2020-01-02 | 日東電工株式会社 | エアフィルタユニット及び空調機 |
JPWO2020004504A1 (ja) * | 2018-06-29 | 2020-07-09 | 日東電工株式会社 | エアフィルタユニット及び空調機 |
JP2021035681A (ja) * | 2018-06-29 | 2021-03-04 | 日東電工株式会社 | エアフィルタユニット |
JP7324739B2 (ja) | 2018-06-29 | 2023-08-10 | 日東電工株式会社 | エアフィルタユニット |
Also Published As
Publication number | Publication date |
---|---|
JP4456075B2 (ja) | 2010-04-28 |
CN100406103C (zh) | 2008-07-30 |
KR100945633B1 (ko) | 2010-03-04 |
CN1705503A (zh) | 2005-12-07 |
KR20060120295A (ko) | 2006-11-27 |
JPWO2005077492A1 (ja) | 2010-05-27 |
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