WO1995005234B1 - Mist collector cartridge - Google Patents
Mist collector cartridgeInfo
- Publication number
- WO1995005234B1 WO1995005234B1 PCT/US1994/009242 US9409242W WO9505234B1 WO 1995005234 B1 WO1995005234 B1 WO 1995005234B1 US 9409242 W US9409242 W US 9409242W WO 9505234 B1 WO9505234 B1 WO 9505234B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- filter media
- media
- air
- aerosol mist
- Prior art date
Links
- 239000003595 mist Substances 0.000 title claims abstract 23
- 239000000463 material Substances 0.000 claims abstract 16
- 239000007788 liquid Substances 0.000 claims abstract 14
- 230000002776 aggregation Effects 0.000 claims abstract 4
- 238000005054 agglomeration Methods 0.000 claims abstract 3
- 239000000443 aerosol Substances 0.000 claims 20
- NBVXSUQYWXRMNV-UHFFFAOYSA-N Fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims 6
- 125000001931 aliphatic group Chemical group 0.000 claims 6
- 238000011045 prefiltration Methods 0.000 claims 6
- 239000011248 coating agent Substances 0.000 claims 5
- 238000000576 coating method Methods 0.000 claims 5
- 238000000926 separation method Methods 0.000 claims 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 210000002268 Wool Anatomy 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- JOYRKODLDBILNP-UHFFFAOYSA-N ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- 239000011152 fibreglass Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 239000012209 synthetic fiber Substances 0.000 claims 1
- 229920002994 synthetic fiber Polymers 0.000 claims 1
Abstract
A mist collector cartridge for collecting airborne liquids, and more particularly, a filter media having vertically oriented interconnected pleats treated with a low surface energy material to facilitate agglomeration and drainage of liquid which accumulates on the inner and outer surface of the filter media.
Claims
1. A filter system for collecting an aerosol mist, comprising: a filter housing having an air inlet and an 5 exhaust port; a cylindrical filter cartridge mounted in said housing having an open top, the filter cartridge including inner and outer sidewalls and defining an inner cylindrical surface along the inner sidewall 0 communicating with said open top, filter media with spaced vertical pleats between said inner and outer sidewalls, said open top being connected to said exhaust port; blower apparatus for drawing air carrying the 5 aerosol mist from an outside atmosphere into the housing through the air inlet, outer sidewall, filter media, and inner sidewall and for exhausting the air through the exhaust port; pleat spacers for maintaining separation 0 between said vertical pleats; and the filter media being treated with a low surface energy coating material so that when air drawn into the housing carrying the aerosol mist flows through the treated filter media, the aerosol mist contacts the 5 treated filter media, agglomerates, and drains along the vertical pleats.
2. The apparatus of claim 1 wherein the filter media comprises a low surface energy synthetic fiber 0 matrix.
3. The apparatus of claim 2 wherein the low surface energy coating material comprises an aliphatic fluorocarbon. 5
4. The apparatus of claim 1 wherein the pleat spacers are integrally formed in the filter media.
27
5. The apparatus of claim 1 further comprising a pre-filter wrap extending across the surface of the filter media to promote formation of large droplets of the aerosol mist.
6. A filter cartridge system for collecting an aerosol mist, comprising: a housing having an air inlet, an exhaust port, and an air outlet in communication with the exhaust port; a cylindrical cartridge within said housing having a top end cap with an opening and a bottom end cap, the cartridge including inner and outer sidewalls extending the longitudinal length of the cartridge and defining an inner cylindrical surface along the inner sidewall communicating with said opening; filter media between said inner and outer sidewalls having separated vertical pleats; means within said housing for drawing air containing the aerosol mist from an outer atmosphere through said air inlet, said inner and outer sidewalls, and said filter media and for exhausting the air; an aliphatic fluorocarbon material on the filter media for agglomerating the aerosol mist to facilitate draining the liquid downward along the vertical pleats; and a pre-filter wrap surrounding the outer sidewall to promote said agglomeration of the aerosol mist.
7. The apparatus of claim 6 wherein the filter media includes pleat spacing means for maintaining the separation between the vertical pleats.
8. The apparatus of claim 6 wherein the filter media includes pleat spacing means arranged for preventing the pleats from collapsing due to resistance in air flow caused by collected liquids.
9. The apparatus of claim 7 wherein the pleat spacing means are integrally formed in the filter media.
10. The apparatus of claim 6 wherein the pre- filter wrap comprises a foamed urethane material.
11. The apparatus of claim 6 wherein the pre- filter wrap comprises a fiberglass wool material.
12. The apparatus of claim 6 wherein the pre- filter wrap comprises a high loft air-laid material.
13. A filter cartridge system for collecting an aerosol mist, comprising: a filter housing having an air inlet and an air outlet; filter support members within said housing including at least one perforated media supporting inner sidewall being cylindrically shaped and defining a hollow interior connected to said air outlet; filter media surrounding said inner sidewall having separated vertical pleats; pleat spacers for preventing said vertical pleats from collapsing; a blower for drawing air carrying the aerosol mist from an outside atmosphere into said housing through said air inlet, said filter media and said inner sidewall, and for exhausting the air through said air outlet; an aliphatic fluorocarbon material on said filter media for agglomerating the aerosol mist to facilitate draining the aerosol mist downwardly along said vertical pleats; and
29 a hopper under said filter media for collecting drained agglomerations of the aerosol mist.
14. The apparatus of claim 13 further including a pre-filter wrap extending across an air inlet surface of the filter media to cause the formation of large droplets of the aerosol mist.
15. The apparatus of claim 13 wherein the end cap comprises a bottom end cap having collection means for collecting liquid which drains from the vertical pleats.
16. A method for separating and collecting airborne liquids using a filtration system, comprising the steps of : a) providing a filter media having vertical pleats with a separation therebetween and pleat spacing means for maintaining the separation between the vertical pleats, the filter media having an air inlet surface and an air outlet surface; b) treating the filter media with filter treatment means for agglomerating liquids which contact the media to promote drainage of the liquid downward along the vertical pleats; c) forcing air containing the liquid from the air inlet surface of the filter media to the air outlet surface so that liquid is collected on the filter media; and d) collecting liquid which drains from the vertical pleats.
17. The method of claim 16 wherein the filter treatment means comprises a low surface energy coating material.
30
18. The method of claim 17 wherein the low surface energy coating material comprises an aliphatic fluorocarbon.
19. The method of claim 16 wherein the pleat spacing means are integrally formed in the filter media.
20. A method for constructing a filter cartridge for collecting airborne liquids, comprising the steps of: a) treating filter paper stock with a low surface energy material; b) corrugating the filter paper stock; c) pleating the filter paper stock to form a filter cartridge; and d) inserting the filter cartridge into a filter support member.
21. The method of claim 20 wherein the step of pleating the filter paper stock includes forming spacing means integrally in the filter media.
22. The method of claim 20 wherein the low surface energy material comprises an aliphatic fluorocarbon.
23. The method of claim 20 further including the step of removing the excess low surface energy material .
24. The method of claim 20 further including the step of drying the filter paper stock.
25. The method of claim 20 wherein the step of treating the filter paper stock includes dipping the filter paper stock in a low surface energy material.
31
26. Mist collector apparatus comprising: a filter housing having an airborne aerosol mist inlet and an air outlet; a filter in said housing with media having spaced pleats oriented vertically; said media being treated with an aliphatic fluorocarbon material so that an aerosol mist contacting a treated surface of the media agglomerates and drains downwardly along the pleats; and means for drawing air containing the aerosol mist from an outside atmosphere into the housing through the inlet and the treated media, and for exhausting filtered air through the outlet, wherein when the air containing the aerosol mist flows through the treated media, the aerosol mist is separated from the air.
27. A cylindrical filter cartridge for collecting airborne liquids constructed and arranged for air to flow from exterior to interior thereof, comprising: a cylindrical perforated liner defining a hollow interior; filter media surrounding said perforated liner and being supported by said perforated liner, said filter media having pleats separated by spacers for preventing the pleats from collapsing; and said filter media being treated with a low surface energy coating material to promote agglomeration and drainage of the airborne liquids.
32
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7507145A JPH09501603A (en) | 1993-08-16 | 1994-08-16 | Mist collection cartridge |
| BR9407286A BR9407286A (en) | 1993-08-16 | 1994-08-16 | Filtering system for collecting air-borne liquids Filter cartridge for collecting air-borne liquids Method for separating and collecting air-borne liquids using a filtering system and method for building a filtering cartridge for collecting air-borne liquids |
| AU75666/94A AU678286B2 (en) | 1993-08-16 | 1994-08-16 | Mist collector cartridge |
| CA002169471A CA2169471C (en) | 1993-08-16 | 1994-08-16 | Mist collector cartridge |
| DE69410472T DE69410472T2 (en) | 1993-08-16 | 1994-08-16 | FILTER SYSTEM FOR FOG SEPARATION |
| EP94925901A EP0714320B1 (en) | 1993-08-16 | 1994-08-16 | Mist collector system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/107,967 US5415676A (en) | 1993-08-16 | 1993-08-16 | Mist collector cartridge |
| US08/107,967 | 1993-08-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995005234A1 WO1995005234A1 (en) | 1995-02-23 |
| WO1995005234B1 true WO1995005234B1 (en) | 1995-03-23 |
Family
ID=22319468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/009242 WO1995005234A1 (en) | 1993-08-16 | 1994-08-16 | Mist collector cartridge |
Country Status (8)
| Country | Link |
|---|---|
| US (4) | US5415676A (en) |
| EP (2) | EP0714320B1 (en) |
| JP (1) | JPH09501603A (en) |
| AU (1) | AU678286B2 (en) |
| BR (1) | BR9407286A (en) |
| DE (2) | DE69430271T2 (en) |
| ES (1) | ES2118430T3 (en) |
| WO (1) | WO1995005234A1 (en) |
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-
1993
- 1993-08-16 US US08/107,967 patent/US5415676A/en not_active Expired - Lifetime
-
1994
- 1994-08-16 WO PCT/US1994/009242 patent/WO1995005234A1/en active IP Right Grant
- 1994-08-16 BR BR9407286A patent/BR9407286A/en not_active IP Right Cessation
- 1994-08-16 EP EP94925901A patent/EP0714320B1/en not_active Expired - Lifetime
- 1994-08-16 DE DE69430271T patent/DE69430271T2/en not_active Expired - Fee Related
- 1994-08-16 AU AU75666/94A patent/AU678286B2/en not_active Ceased
- 1994-08-16 ES ES94925901T patent/ES2118430T3/en not_active Expired - Lifetime
- 1994-08-16 EP EP97106962A patent/EP0803276B1/en not_active Expired - Lifetime
- 1994-08-16 DE DE69410472T patent/DE69410472T2/en not_active Expired - Fee Related
- 1994-08-16 JP JP7507145A patent/JPH09501603A/en active Pending
- 1994-12-12 US US08/353,640 patent/US5454858A/en not_active Expired - Lifetime
-
1996
- 1996-08-28 US US08/704,267 patent/US5871557A/en not_active Expired - Fee Related
- 1996-11-27 US US08/757,239 patent/US5935284A/en not_active Expired - Lifetime
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