CN101278432A - Filter arrangement - Google Patents

Filter arrangement Download PDF

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Publication number
CN101278432A
CN101278432A CNA2006800364548A CN200680036454A CN101278432A CN 101278432 A CN101278432 A CN 101278432A CN A2006800364548 A CNA2006800364548 A CN A2006800364548A CN 200680036454 A CN200680036454 A CN 200680036454A CN 101278432 A CN101278432 A CN 101278432A
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China
Prior art keywords
filter
installation
flange
fuel cell
filter media
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Granted
Application number
CNA2006800364548A
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Chinese (zh)
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CN101278432B (en
Inventor
R·卡芬贝格尔
V·许克尔
D·欣腾朗
M·迈尔赫费尔
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Carl Freudenberg KG
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Carl Freudenberg KG
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Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority claimed from PCT/EP2006/008801 external-priority patent/WO2007039037A1/en
Publication of CN101278432A publication Critical patent/CN101278432A/en
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Publication of CN101278432B publication Critical patent/CN101278432B/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

Filter arrangement (7) for cleaning the fuel cell intake air comprising at least one filter (1 ) of the at least two layers of a first filter medium (2, 3) and at least one additional layer of a second filter medium (4) whereby the second filter medium (4) is embedded between the first filter media (2, 3), and these first filter media (2, 3) are attached to the mutually opposing edge sections (5, 6) and comprising a housing (8) which comprises at least one top part (9) and one bottom part (10), whereby the top part (9) and the bottom part (10) each have a flange (11 , 12) and whereby the edge sections (5, 6) of the filter (1 ) are arranged between the flanges (11 , 12).

Description

Filter for installation
Technical field
The present invention relates to a kind of filter for installation that purging fuel cell sucks air that is used for.
Background technology
Fuel cell especially PEM fuel cell requires not contain corrosive elements in the suction air, to obtain optimal efficacy and long-term durability.Corrosive elements is particulate and gaseous state particle.Can be from the erosion property particle (inscribed particles) of system unit that is arranged on the upstream such as air conveyance devices or abrasiveness particle or corrosive gas in the fuel cell inner accumulated, and can damage the best-of-breed functionality of a plurality of parts such as gas passage, air diffusion layer, catalyst or membrane electrode assembly.Corrosive elements can cause these parts by loss prematurely.Enter fuel cell in order to prevent that particle from being carried secretly, utilize filter that the suction air of fuel cell is purified.Yet available design space is limited, and is especially true for the fuel cell of compactness.
Summary of the invention
The object of the present invention is to provide a kind of compact to design and make the cheap filter for installation that purging fuel cell sucks air that is used for.
Feature by claim 1 realizes above-mentioned purpose.Dependent claims relates to favourable execution mode.
To achieve these goals, a kind of filter for installation that is used for purging fuel cell suction air section comprises at least one filter of being made up of two-layer at least first filter media and other at least one deck second filter media, wherein, second filter media is embedded between first filter media, and described first filter media is attached to limit respect to one another portion; And comprise that housing, this housing comprise at least one overhead and a bottom member, and wherein, overhead and bottom member have flange respectively, and the limit portion of described filter is arranged between the flange.
Under the situation of fuel cell,, suck the essential process of air and filter particularly for for example PEM fuel cell and DMFC fuel cell.Fuel cells for mobile use especially has compact design, and in some cases, filter can only be arranged in the position that is difficult to arrive.Filter of the present invention can especially easily be mounted owing to its design.According to the present invention, described filter can be arranged in the air conveyance devices zone---and in other words, in the upstream and/or the downstream of air conveyance devices, described air conveyance devices can be designed to pump or compressor.Described filter for installation is preferably located in the upstream of air humidifier.Need the suction air wetting of air humidifier to fuel cell, become dry to prevent film, the film exsiccation can cause voltage to descend.
The limit portion of first filter media connects by force closure (friction locking) and/or shape sealed (form fitting) connects and/or the integrated bond connection is fixed.Can save the independent connection to first filter media, the filter that especially ought be installed in the housing is not designed under the removable situation.Filter and housing form pre-assembled unit jointly, are possible thereby change filter---especially under the situation of force closure connection and/or sealed connection of shape and/or integrated bond connection.The limit portion that is arranged between the flange seals housing simultaneously.Here advantageously, described filter for installation is that its filter layer is attached at the single part on the housing securely.This makes that assembling is simple especially, gets final product because only need connect air conduit.Simultaneously, this filter for installation is in light weight, so need not additionally fix described housing.
Described flange can force closure and/or the sealed mode of shape be linked together.Can connect and/or the sealed connection of shape by using simple tools to set up force closure at an easy rate, and need not to assemble assistant/assistance.This connection can not had the ground of destruction and discharged, thereby has simplified the replacing of filter.
Described flange and limit portion can integrated bond mode be bonded together.Under the situation that integrated bond connects, owing to the effect of power has prevented that flange from by mistake being discharged.Integrated bond, especially the integrated bond connection by adhesive can be designed to airtight.At this moment change filter by changing the housing that inside is packaged with filter, this is particularly highly beneficial under the situation at the position that is difficult to arrive.
Described flange and limit portion can be welded together.Welding does not have specific (special) requirements for the shape or the profile of flange, and tolerance is low.
Described overhead and bottom member can be designed to injection molding member or turning workpiece.Overhead and bottom member are made by the plastics such as the acrylonitrile-butadiene-styrene copolymer (ABS) of cheapness.Injection moulding is a kind of simple and cheap production technology.Overhead and bottom member also can be designed to dark long component.
Described filter can be mounted in housing and make at overhead and filter and/or be formed with air space between bottom member and filter.Air space impels air flow distribution, thereby forms the uniform incoming flow in the face of filter.In addition, particularly advantageously, described air space has sound absorption, thereby the noise that air conveyance devices is sent can be weakened.Therefore filter for installation has formed the device that is used for sound-inhibiting simultaneously.If in air space, be provided with porous media such as non-woven fabric, utilize the interconnective a plurality of chambers of path if perhaps in air space, be provided with, then can further improve inhibition to sound.
Described first filter media can be made by non-woven fabric, thereby this first filter media is designed to coarse filter or fine cleaner, and second filter (medium) is designed to fine cleaner.First filter media is towards the suction air side without purification, and second filter media is towards the suction air side through purifying.Non-woven fabric is cheap and can make by several different methods.Described non-woven fabric is preferably made by plastics such as polyester, polyolefin or polyacrylonitrile.First filter media also can be formed by the multi-layer nonwoven thing of making by different plastics.Because the manufacturing process difference, non-woven fabric can have different performances, for example filter the solid particle of all size and liquid particles is the so-called aerosol and the applicability of filtering some chemical composition.Described non-woven fabric can scribble ion exchange resin so that can for example filter alkaline gas or sour gas, for example NH 3Or SO 2---this depends on the performance of resin.Second filter media can form by active carbon.Second filter media forms absorbent filter or absorptive-type filter by active carbon, and wherein active carbon is applicable to and filters diversified chemical composition and particle.Can be provided with the multilayer active carbon.But active carbon is particulate and can flows freely, and therefore, active carbon for example is fixed on the device/means advantageous particularly between first filter media of being made by non-woven fabric.Also can be individually or provide other adsorbent in combination as second filter media.These adsorbents also can be the activity by physical absorption or chemisorbed.For example, also it is contemplated that impregnated carbon, silica gel, aluminium oxide or ion-exchanger.Other filter for installation can additionally have upstream and/or downstream particle filter.Described filter media can be designed to stamping parts.Stamping parts is easy to make especially.If the punched blank of second filter media is arranged between the lamella of first filter media, makes punched blank from first filter media then, then make serially.When stamping out first filter media, also can use the welding of equal dies.If second filter media is made of active carbon, then may need to use adhesive that active carbon is fixed into bulk.The amount of adhesive is favourable especially less, because activated carbon punched blank is fixed between first filter media.Owing to reduced binder content, the specific area that can freely arrive and the absorption property of activated carbon punched blank are improved.The amount of the adhesive in the activated carbon punched blank can be reduced to less than 50wt%.
Description of drawings
Below with reference to accompanying drawing several exemplary embodiment is described in further detail.These accompanying drawings illustrate with schematic illustration respectively:
Fig. 1: filter for installation of the present invention;
Fig. 2: a kind of filter of the present invention;
Fig. 3: a kind of filter for installation, its housing member is linked together in the mode of integrated bond;
Fig. 4: a kind of filter for installation;
Fig. 5: a kind of filter for installation, its housing member is sealed with shape to be linked together with mode force closure;
Fig. 6: a kind of filter for installation, its housing member is sealed with shape to be linked together with mode force closure, and has other potted component.
Fig. 7: a kind of filter for installation, its housing member is sealed with shape to be linked together with mode force closure, and has other potted component.
Embodiment
Fig. 1 illustrates and is used to purify the filter for installation 7 that the fuel cell that enters fuel cell 19 sucks air, and therefore this filter for installation 7 is installed in the suction air stream of fuel cell 19.Particularly for the PEM fuel cell, if be provided with humidifier 20 in sucking air stream, then filter for installation 7 can be installed in before the humidifier 20, so that the suction air through purifying to be provided to humidifier 20.Wherein, filter for installation 7 can be arranged on and be used to carry before the air conveyance devices 21 that sucks air stream and/or afterwards.
Fig. 2 illustrates the filter 1 that is installed in the filter for installation.This filter 1 is made of two-layer first filter media 2,3 and one deck second filter media 4 of being installed between two-layer first filter media 2,3, thereby forms the sandwich type design of filter 1. Filter media 2,3,4 is designed to flat, and first filter media, 2,3 to the second filter medias 4 have bigger area.Therefore, the limit portion 5,6 of first filter media 2,3 is overlapping.Described relative limit portion 5,6 is linked together.In this embodiment, limit portion 5,6 is linked together by the mode of ultrasonic bonding with integrated bond.In other embodiments, limit portion 5,6 can be linked together by the hot melt punching press or by gummed. First filter media 2,3 is made by polyester or polypropylene nonwoven, and forms the primary filter element of filter 1 and level filter element eventually.Second filter media is made by active carbon, and particle is bonding mutually by adhesive.Like this, the active carbon blank has the form of compacting blank, and it can be finalized by punching press.In order to make second filter media 4, in the first step, active carbon is arranged on the carrier of being made by non-woven fabric.In following step, by mutually stacked and be laminated on together, wherein, described carrier deviates from and forms two main sides described carrier mutually with active carbon.In this embodiment, the carrier-active carbon of two laminations-carrier layer is stacked mutually, and wherein, an active carbon layer is used to filter sour gas, and another active carbon layer is used to filter alkaline gas.
In this embodiment, three filter medias 2,3,4 all are designed to punched blank.Filter 1 can be made in continuous technology, wherein, the punched blank of second filter media 4 is arranged on continuously between the layer of first filter media 2,3.Then, first filter media 2,3 that second filter media is installed is therebetween stamped out; In punching operation, with limit portion 5,6 integrated bond of first filter media 2,3.This filter 1 is installed in the suction air stream of fuel cell.
Fig. 3 illustrates the filter for installation 7 that comprises housing 8, the filter 1 that described housing 8 keeps according to Fig. 2.Housing 8 has overhead 9 and the bottom member of being made by injection moulding by plastics 10.The flange 11,12 that is arranged on overhead 9 and the bottom member 10 can be used for making overhead 9 and bottom member 10 to contact.According to this embodiment, on the right side of line of symmetry, filter 1 is installed between overhead 9 and the bottom member 10, thereby the limit portion 5,6 that makes first filter media 2,3 is between flange 11,12 and be fixed there.In another embodiment shown in the line of symmetry left side, the limit portion 5,6 of first filter media 2,3 remains in the groove that is formed by flange 11,12 in the sealed mode of shape.Overhead 9 and bottom member 10 are designed to profound type member, and have bigger cross section so that make on flange 11,12 directions.In this embodiment, flange 11,12 is in the same place with limit portion 5,6 integrated bond.Filter is mounted in housing and makes and leaving air space between overhead and the filter and/or between bottom member and filter.
For making filter for installation 7, overhead 9 and bottom member 10 and 2,3 and one second filter medias 4 of two first filter medias is stacked mutually, and in once-through operation, limit portion 5,6 and flange 11,12 are welded together, therefore, make 7 of filter for installations and need the single welding operation.Filter for installation 7 and filter 1 in this embodiment has rectangle, is roughly square cross section, to utilize available insulating space most possibly.Filter for installation 7 also is installed in the suction air stream of fuel cell.
Fig. 4 illustrates the filter for installation 7 according to Fig. 3, and its flange 11,12 is not linked together as yet.The flange 11 of overhead 9 has been guaranteed the contact between the flange 11,12 have the flank 14 that surrounding periphery is arranged on a side of the flange 12 of bottom member 10.Because flank 14 areas are very little, thus the surface pressing maximum here, and should the zone can be soldered particularly well.Because flank 14 also makes limit portion 5,6 to be penetrated well, therefore this connection has the seal of improvement.
Fig. 5 illustrates the filter for installation 7 according to Fig. 3, and wherein, flange 11,12 modes sealed with shape and force closure among this embodiment are linked together.The flange 11 of overhead 9 is bonded in the inner rim of flange 12 of bottom member 10.On the neighboring of flange 11, be provided with a shape latch members, this shape latch members is designed to protuberance 16, and engage in the sealed mode of shape with a groove that is designed to be superimposed 15, and limit portion 5,6 modes with force closure owing to extend radially slightly via filter 1 engage, and described groove is arranged on the inner rim of flange 12.In other embodiments, two or more shape latch members also can be set.Housing 8 seals by limit portion 5,6, and described limit portion 5,6 is mounted to it is compressed between the flange 11,12.Housing 8 can be opened and be closed to change filter 1 again.
Fig. 6 illustrates two embodiment in addition according to the filter for installation of Fig. 5, wherein, is provided with other potted component 11,12 of flanges.In the embodiment shown in the line of symmetry left side, between flange 11 and 12, be provided with O shape ring 17 as other potted component.O shape ring can be set when sealing is had specific demand, and housing must be able to easily be opened simultaneously.Be provided with sealed composite part 18 as other potted component in the embodiment shown in the line of symmetry right side, the sealing composite members is injected in the gap between the flange 11,12.Can specific demand arranged sealing and tolerance is being provided with the sealed composite part when low.If described limit portion is made by the non-woven fabric of making by plastics, then sealing may reduce with the passing of time owing to the irreversible deformation of non-woven fabric.
Fig. 7 illustrates two embodiment according to the filter for installation 7 of Fig. 6, and wherein the sealed connection of shape is designed to the interlock connector, and is formed directly between the flange 11,12.Therefore, overhead 9 and bottom member 10 should be installed especially.In these embodiments, the protuberance 16 of flange 11 directly is bonded in the groove 15 of flange 12.In order to improve sealing, be provided with O shape ring 17 in this embodiment in the line of symmetry left side, be provided with sealed composite part 18 in this embodiment on the line of symmetry right side.

Claims (8)

1. one kind is used for the filter for installation (7) that purging fuel cell sucks air, comprise at least one filter (1), this filter has two-layer at least first filter media (2,3) and other at least one deck second filter media (4), wherein, second filter media (4) is embedded between first filter media (2,3), and described first filter media (2,3) is attached to relative limit portion (5,6); And comprise housing (8), this housing comprises at least one overhead (9) and a bottom member (10), wherein, overhead (9) and bottom member (10) have flange (11,12) respectively, and the limit portion of described filter (1) (5,6) is arranged between the described flange (11,12).
2. filter for installation according to claim 1 is characterized in that, described flange (11,12) mode sealed with shape and/or force closure is linked together.
3. filter for installation according to claim 1 and 2 is characterized in that, described flange (11,12) and limit portion are bound up in the mode of integrated bond.
4. according to each described filter for installation among the claim 1-3, it is characterized in that described flange (11,12) and limit portion (5,6) are welded together.
5. according to each described filter for installation among the claim 1-4, it is characterized in that described overhead (9) and bottom member (10) are designed to injection molding member.
6. according to each described filter for installation among the claim 1-5, it is characterized in that described filter (1) is mounted to and makes at described overhead (9) and filter (1) and/or be formed with air space between described bottom member (10) and filter (1) in described housing (8).
7. a fuel cell (19), this fuel cell comprises according to each described filter for installation (7) in the aforementioned claim.
8. fuel cell according to claim 7 is characterized in that, described filter for installation (7) is installed in the suction air stream of fuel cell (19).
CN2006800364548A 2005-10-01 2006-09-09 Filter arrangement Active CN101278432B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102005047220.6 2005-10-01
DE102005047220 2005-10-01
US72680405P 2005-10-14 2005-10-14
US60/726,804 2005-10-14
PCT/EP2006/008801 WO2007039037A1 (en) 2005-10-01 2006-09-09 Filter arrangement

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CN101278432A true CN101278432A (en) 2008-10-01
CN101278432B CN101278432B (en) 2012-05-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439250B (en) * 2008-11-28 2011-11-16 同济大学 Air filter for fuel cell
CN103143211A (en) * 2013-03-19 2013-06-12 沈阳兴工铜业有限公司 Pollutant recovery and purification device in metal material vacuum casting process
CN104826451A (en) * 2015-04-27 2015-08-12 常州大学 Novel absorber
EP2772747A3 (en) * 2013-03-01 2017-04-12 Comde-Derende GmbH Filter unit with a particle collecting filter
CN106932232A (en) * 2015-12-30 2017-07-07 康姆德润达（无锡）测量技术有限公司 A kind of filter membrane clip
CN107466247A (en) * 2015-03-26 2017-12-12 马勒国际有限公司 Include the air cleaner of multiple filtration material
CN109155421A (en) * 2016-05-19 2019-01-04 曼·胡默尔有限公司 Fuel cell filter cell and fuel cell filter system with fuel cell filter cell

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2105636U (en) * 1991-10-26 1992-05-27 天津市杨柳青家用电器厂 Air purifier
CN2186150Y (en) * 1992-09-14 1994-12-28 北京市塑料十三厂 Non-spining cloth-active carbon compound laminated products

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101439250B (en) * 2008-11-28 2011-11-16 同济大学 Air filter for fuel cell
EP2772747A3 (en) * 2013-03-01 2017-04-12 Comde-Derende GmbH Filter unit with a particle collecting filter
CN103143211A (en) * 2013-03-19 2013-06-12 沈阳兴工铜业有限公司 Pollutant recovery and purification device in metal material vacuum casting process
CN103143211B (en) * 2013-03-19 2016-09-28 沈阳兴工铜业有限公司 Pollutant reclaiming clean device during metal material vacuum casting
CN107466247A (en) * 2015-03-26 2017-12-12 马勒国际有限公司 Include the air cleaner of multiple filtration material
CN107466247B (en) * 2015-03-26 2019-11-22 马勒国际有限公司 Air filter including multiple filtration material
CN104826451A (en) * 2015-04-27 2015-08-12 常州大学 Novel absorber
CN106932232A (en) * 2015-12-30 2017-07-07 康姆德润达（无锡）测量技术有限公司 A kind of filter membrane clip
CN109155421A (en) * 2016-05-19 2019-01-04 曼·胡默尔有限公司 Fuel cell filter cell and fuel cell filter system with fuel cell filter cell

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