WO2016074630A1 - Ensemble filtre - Google Patents

Ensemble filtre Download PDF

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Publication number
WO2016074630A1
WO2016074630A1 PCT/CN2015/094448 CN2015094448W WO2016074630A1 WO 2016074630 A1 WO2016074630 A1 WO 2016074630A1 CN 2015094448 W CN2015094448 W CN 2015094448W WO 2016074630 A1 WO2016074630 A1 WO 2016074630A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
opening
head
passage
inlet passage
Prior art date
Application number
PCT/CN2015/094448
Other languages
English (en)
Chinese (zh)
Inventor
杨振球
樊高峰
林魁
陈国立
刘大玲
Original Assignee
天纳克（苏州）排放系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201420680139.0U external-priority patent/CN204261451U/zh
Priority claimed from CN201510105750.XA external-priority patent/CN104707481B/zh
Application filed by 天纳克（苏州）排放系统有限公司 filed Critical 天纳克（苏州）排放系统有限公司
Publication of WO2016074630A1 publication Critical patent/WO2016074630A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases

Definitions

  • the present invention relates to a filter assembly, and more particularly to a filter assembly for use in an engine exhaust aftertreatment system for filtering a urea solution.
  • Current engine exhaust aftertreatment systems typically include a urea tank, a urea pump for withdrawing urea solution from the urea tank, and a filter for filtering the urea solution.
  • a filter assembly including at least a first filter and a second filter
  • the first filter includes a first housing, located in the first housing a first filter element in the body and a first head that cooperates with the first housing, the first head is provided with a first inlet passage and a first outlet passage
  • the second filter comprises a second housing a second filter element located in the second housing and a second head portion cooperating with the second housing, the second head portion is provided with a second inlet passage and a second outlet passage;
  • An inlet passage communicating with the second inlet passage, the first outlet passage being in communication with the second outlet passage, the first filter being disposed separately from the second filter and detachably assembled by a fixing member Together, the fixing member detachably assembles the first head and the second head together.
  • the first filter and the second filter are connected in parallel in a flow mode.
  • the first filter includes a first inlet space between the first filter element and the first housing and in communication with the first inlet passage, and is located at a first outlet space in the first filter element and in communication with the first outlet passage;
  • the second filter includes a second filter element between the second filter element and the second housing a second inlet space in which the two inlet passages communicate, and a second outlet space in the second filter element and in communication with the second outlet passage.
  • the first filter includes a first distribution tray, and the first distribution tray is provided with a plurality of first leak holes distributed in a circumferential direction, the first leak holes to be the first An inlet passage is connected to the first inlet space;
  • the second filter includes a second distribution tray, and the second distribution tray is provided with a plurality of second leakage holes distributed in a circumferential direction, the second leakage hole The second inlet passage is connected to the second inlet space.
  • the first inlet passage and the first outlet passage are parallel to each other, the second inlet passage and the second outlet passage are parallel to each other, the first inlet passage and the first inlet passage
  • the second inlet passages are aligned with each other, and the first outlet passage and the second outlet passage are aligned with each other.
  • the filter assembly further includes a first sealing ring installed between the first inlet passage and the second inlet passage, and a first outlet passage and a seat A second seal ring between the second outlet passages.
  • the first inlet passage penetrates the first head, and a first opening and a second opening are respectively formed on both sides of the first head;
  • the first outlet passage is also a third opening and a fourth opening are formed on both sides of the first head, respectively, through the first head; wherein the first opening and the third opening are located on the same side of the first head
  • the second opening and the fourth opening are located on the same side of the first head;
  • the second inlet passage extends through the second head to form a first side on the two sides of the second head a fifth opening and a sixth opening;
  • the second outlet passage also extends through the second head, forming a seventh opening and an eighth opening on both sides of the second head, respectively; wherein the fifth opening and the opening
  • the seventh opening is located on the same side of the second head, the sixth opening and the eighth opening are located on the same side of the second head;
  • the second opening is in contact with the fifth opening,
  • the fourth opening is in contact with the seventh opening, the first sealing ring Within said second opening,
  • the filter assembly further includes an inlet joint inserted in the first opening and an outlet joint inserted in the third opening.
  • the first housing is provided with a first cylindrical portion and welded to the first a first connecting block at the top of the tubular portion, the first connecting block has a thickness greater than a wall thickness of the first tubular portion, and the first head portion and the first connecting block are provided with a mating external thread and The internal thread is such that the first filter element can be detachably mounted in the first housing.
  • the fixing member includes a bolt and a nut that cooperates with the bolt.
  • the first head portion is provided with a first mounting portion at a bottom thereof, and the first mounting portion is provided with a first mounting slot extending transversely, the first mounting slot being parallel to a first inlet passage;
  • the second head portion is provided with a second mounting portion at a bottom thereof, the second mounting portion is provided with a downwardly extending slot; the bolt is received in the first mounting slot The nut is received in the slot.
  • the second mounting portion is provided with a second mounting slot extending transversely, the second mounting slot is parallel to the second inlet channel, the slotting and the second mounting The slots are in communication, and the second mounting slots are for receiving bolts that cooperate with the third filter.
  • the first filter of the filter assembly of the present invention is separately disposed from the second filter and detachably assembled by the fixing member, and the system design can be realized, and a suitable number is selected according to different application requirements. Filters are combined to increase scalability.
  • Figure 1 is a schematic diagram of an engine exhaust aftertreatment system of the present invention.
  • Figure 2 is a perspective view of the filter assembly of Figure 1.
  • Figure 3 is a perspective view of another angle of Figure 2.
  • Fig. 4 is a front view of Fig. 2;
  • Fig. 5 is a bottom view of Fig. 2;
  • Figure 6 is a left side view of Figure 2.
  • Figure 7 is a partial exploded perspective view of Figure 2 with the first filter separated from the second filter and the second filter assembled with the third filter.
  • Figure 8 is an exploded perspective view of another angle of Figure 7.
  • Figure 9 is an exploded perspective view of another angle of Figure 8 with the filter housing not shown.
  • Figure 10 is a partially exploded perspective view of the first filter of Figure 7.
  • Figure 11 is a cross-sectional view of the first filter.
  • Figure 12 is a cross-sectional view of the filter assembly of the present invention at a certain position.
  • Figure 13 is a cross-sectional view of the filter assembly of the present invention at another location.
  • the present invention discloses an exhaust aftertreatment system 100 that can be applied to a large engine, comprising a urea tank 1, a filter assembly 3 connected to the urea tank 1, for transporting the urea.
  • a fluid delivery device 4 for solution a common rail 5 connected to the fluid delivery device 4, a plurality of nozzles 6 connected to the common rail 5, and a controller 2 for controlling the exhaust aftertreatment system 100.
  • the engine 200 is a high power engine that typically exceeds 500 kilowatts.
  • the fluid delivery device 4 is provided with a pump 41 (for example a gear pump or the like) for pumping a urea solution.
  • the controller 2 is mounted on the fluid delivery device 4 for integration.
  • the nozzle 6 is used to inject an atomized urea solution into the engine exhaust pipe 201.
  • the atomized urea solution is decomposed into ammonia gas in the engine exhaust pipe 201, and the ammonia gas can react with nitrogen oxides in the exhaust gas, thereby reducing nitrogen oxide emissions.
  • the principles of such exhaust gas treatment techniques are well known to those skilled in the art, the invention is not described herein.
  • the filter assembly 3 includes a first filter 31, a second filter 32, and a third filter 33 that are connected together side by side. .
  • the structures of the first, second, and third filters 31, 32, 33 are very similar to facilitate sharing of equipment/mold, saving manufacturing costs. The following description will be made only by taking the first filter 31 as an example.
  • the first filter 31 includes a first housing 311 , a first filter element 312 mounted in the first housing 311 , and a first housing 311 .
  • the first housing 311 includes a first cylindrical portion 3111, a first bottom portion 3112 at a bottom end of the first cylindrical portion 3111, and a spring disposed on the first bottom portion 3112 to support the first filter element 312 upward. 3113, and a first connecting block 3114 located at a top end of the first cylindrical portion 3111.
  • the first connecting block 3114 is welded to the top end of the first cylindrical portion 3111.
  • the first connecting block 3114 is provided with internal threads.
  • the lower end of the first head 313 is provided with an external thread that cooperates with the internal thread. Since the first cylindrical portion 3111 is relatively thin and its thickness cannot be provided with a thread structure, the present invention solves this problem in an ingenious manner by providing the first connecting block 3114, thereby saving cost. Referring to FIG. 11, the thickness of the first connecting block 3114 is greater than the thickness of the first cylindrical portion 3111. In addition, in the illustrated embodiment of the present invention, the first bottom portion 3112 and the first cylindrical portion 3111 are separately disposed and then welded together, and the cost is low. In one embodiment, the first housing 311 is made of stainless steel in order to be resistant to an alkaline solution.
  • the first filter 31 is an external in-and-out filter.
  • the first filter element 312 has a substantially hollow cylindrical shape.
  • a first inlet space 3141 is formed between the first housing 311 and the first filter element 312, and a hollow portion of the first filter element 312 forms a first outlet space 3142.
  • the first filter 31 further includes a first distribution tray 315 at an upper end of the first inlet space 3141, and the first distribution tray 315 is provided with a plurality of sections distributed along the circumference. a leak hole 3151, the first leak hole 3151 is in communication with the first inlet space 3141.
  • the first filter 31 further includes a first rubber pad 316 between the first head 313 and the first filter element 312 .
  • the first head 313 is a machined piece and is of unitary construction. This setting saves the cost of mold opening. At the same time, the inlet and outlet holes of the machined parts can be opened relatively large to meet the requirements of large flow.
  • the first head portion 313 is screwed to the first housing 311, and is disposed. When the first filter element 312 needs to be replaced, only the thread needs to be unscrewed, and the entire filter replacement is not required. , which saves maintenance costs.
  • the first head portion 313 includes a first body portion 34 , a first positioning portion 35 extending from one side of the first body portion 34 and extending upward, and the first portion Two first mounting portions 36 on both sides of the bottom of the main body portion 34, wherein the first positioning portion 35 is provided with a plurality of first positioning holes 351 for mounting and fixing the first filter 31.
  • the first body portion 34 includes opposite side faces 340, a first inlet passage 341 extending through the two side faces 340, and a first outlet passage 342 extending through the two side faces 340.
  • the first inlet passage 341 and the first outlet passage 342 are parallel to each other.
  • the first inlet passage 341 respectively defines a first opening 3411 and a second opening 3412 on both sides of the first head 313; similarly, the first outlet passage 342 is respectively at the first head 313
  • a third opening 3421 and a fourth opening 3422 are formed on both sides.
  • the first opening 3411 and the third opening 3421 are located on the same side of the first head 313, and the second opening 3412 and the fourth opening 3422 are located on the same side of the first head 313. side.
  • the first filter 31 further includes an inlet fitting 343 inserted in the first opening 3411 and an outlet fitting 344 inserted in the third opening 3421.
  • the bottom portion of the first head portion 313 is further provided with a first crescent groove 3131 communicating with the first leak hole 3151 on the first distribution tray 315 and the first exit space 3142 .
  • the first lunar groove 3131 is in communication with the first inlet passage 341, and the outlet hole 3132 is in communication with the first outlet passage 342.
  • the first mounting portion 36 is provided with a first mounting slot 363 extending transversely and a slot 364 communicating with the first mounting slot 363 and penetrating downwardly, the first mounting slot 363 being parallel to the first inlet Channel 341.
  • the second filter 32 is very similar in structure to the first filter 31 and is briefly described as follows.
  • the second filter 32 includes a second housing 321 , a second filter element (not shown) mounted in the second housing 321 , and a second head 323 that cooperates with the second housing 321 . .
  • the second housing 321 is identical to the first housing 311, and the second filter element is identical to the first filter element 312.
  • a second inlet space (not shown) is formed between the second casing 321 and the second filter element, and a hollow portion of the second filter element forms a second outlet space (not shown).
  • the second filter 32 further includes a second distribution tray 325 at an upper end of the second inlet space, and the second distribution tray 325 is provided with a plurality of second leak holes 3251 distributed along the circumference, the second drain A hole 3251 is in communication with the second inlet space.
  • the bottom of the second head 323 is further provided with a second crescent 3231 communicating with the second leak hole 3251 on the second distribution tray 325 and an exit hole 3232 communicating with the second outlet space.
  • the second head 323 is a machined piece and is of unitary construction. This setting saves the cost of mold opening. At the same time, the inlet and outlet holes of the machined parts can be opened relatively large to meet the requirements of large flow.
  • the second head 323 is screwed to the second housing 321 so as to be disposed. When the second filter element needs to be replaced, the thread only needs to be unscrewed, and the entire filter replacement is not required. This saves maintenance costs.
  • the second head portion 323 includes a second body portion 37 , a second positioning portion 38 extending from one side of the second body portion 37 and extending upward, and the second portion Two second mounting portions 39 on both sides of the bottom of the main body portion 37, wherein the second positioning portion 38 is provided with a plurality of second positioning holes 381 for mounting and fixing the second filter 32.
  • the second body portion 37 includes opposite side faces 370, a second inlet passage 371 extending through the two side faces 370, and a second outlet passage 372 extending through the two side faces 370.
  • the second inlet passage 371 and the second outlet passage 372 are parallel to each other.
  • the second lunar canal 3231 is in communication with the second inlet passage 371, and the outlet aperture 3232 is in communication with the second outlet passage 372.
  • the second inlet passage 371 respectively forms a fifth opening 3711 and a sixth opening 3712 on both sides of the second head 323; similarly, the first The second outlet passages 372 respectively form a seventh opening 3721 and an eighth opening 3722 on both sides of the second head portion 323.
  • the fifth opening 3711 and the seventh opening 3721 are located on the same side of the second head 323, and the sixth opening 3712 and the eighth opening 3722 are located on the same side of the second head 323. .
  • the first filter 31 is disposed separately from the second filter 32 and detachably assembled together by a fixing member; the second filter 32 and the third filter
  • the filters 33 are separately provided and detachably assembled by a fixing member.
  • the fixing member includes a bolt 361 and a nut 362 that cooperates with the bolt 361.
  • the first mounting portion 36 is provided with a first mounting slot 363 extending transversely, the first mounting slot 363 being parallel to the first inlet passage 341.
  • the second mounting portion 39 is provided with a second mounting groove 391 penetrating in a lateral direction and a slot 392 communicating with the second mounting groove 391 and penetrating downward.
  • the second mounting groove 391 is parallel to the second inlet passage 371.
  • the first filter 31 is disposed separately from the second filter 32 and detachably assembled together by a fixing member; the second filter 32 and the third filter
  • the filters 33 are separately provided and detachably assembled by a fixing member.
  • the fixing member includes a bolt 361 and a nut 362 that cooperates with the bolt 361.
  • the filter assembly 3 further includes a first sealing ring 365 received in the second opening 3412 and a second sealing ring 366 received in the fourth opening 3422.
  • the first inlet passage 341 and the second inlet passage 371 are aligned with each other, and the first outlet passage 342 and the second outlet passage 372 are aligned with each other.
  • the bolt 361 is received in the first mounting groove 363 in the lateral direction.
  • the nut 362 is received in the slot 392 from the bottom upward, and the bolt 361 is tightened with the nut 362.
  • the fixing member detachably assembles the first head portion 313 of the first filter 31 and the second head portion 323 of the second filter 32.
  • the filter assembly 3 of the present invention is sequentially assembled, that is, the second filter 32 and the third filter 31 should be assembled first, that is, the bolt 361 is inserted into the second mounting groove.
  • the nut 362 is inserted into the third filter 31 and tightened in 391. Then, the first filter 31 and the second filter 32 are assembled again to avoid assembly interference.
  • the first filter 31, the second filter 32 and the third filter 33 are connected in parallel in a flow pattern.
  • the fluid flows from the inlet joint 343 into the first inlet passage 341, a portion of the fluid flows into the first crescent groove 3131, and passes through the first first leak holes 3151 on the first distribution tray 315, into the first inlet space 3141, which portion
  • the fluid permeates through the first filter element 312, enters the first outlet space 3142, then flows into the first outlet passage 342 through the outlet opening 3132, and finally exits from the outlet joint 344; another portion of the fluid flows into the second inlet passage 371, and then A portion flows into the second crescent 3231 and passes through a plurality of second leak holes 3251 on the second distribution tray 325 into the third inlet space, the portion of the fluid permeating through the second filter element into the second outlet space, and then It then flows through the exit aperture into the second outlet passage 372 and finally exits from the outlet joint 344.
  • the flow direction of the fluid in the third filter 33 is the same as the flow direction in the second filter 32.
  • the first filter 31, the second filter 32, and the third filter 33 of the filter assembly 3 of the present invention are separately disposed and detachably assembled by the fixing member, and can be systematically designed, and are appropriately selected according to different application requirements.
  • the number of filters is combined to increase the scalability.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un ensemble filtre (3) qui comprend un premier filtre (31) et un second filtre (32), le premier filtre (31) comportant un premier boîtier (311), une première garniture intérieure de filtre (312) et une première partie tête (313), et la première partie tête (313) est pourvue d'un premier passage d'entrée (341) et un premier passage de sortie (342). Le second filtre (32) comporte un second boîtier (321), une seconde garniture intérieure de filtre et une seconde partie tête (323), et la seconde partie tête (323) est pourvue d'un second passage d'entrée (371) et d'un second passage de sortie (372). Le premier passage d'entrée (341) est en communication avec le second passage d'entrée (371), et le premier passage de sortie (342) est en communication avec le second passage de sortie (372). Le premier filtre (31) et le second filtre (32) sont agencés séparément, et la première partie tête (313) et la seconde partie tête (323) sont assemblées ensemble de façon détachable au moyen d'une partie de fixation Un nombre approprié de filtres peut être choisi de façon à les combiner selon différentes exigences d'application.
PCT/CN2015/094448 2014-11-14 2015-11-12 Ensemble filtre WO2016074630A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201420680139.0 2014-11-14
CN201420680139.0U CN204261451U (zh) 2014-11-14 2014-11-14 过滤器
CN201510105750.XA CN104707481B (zh) 2015-03-11 2015-03-11 过滤器组件
CN201510105750.X 2015-03-11

Publications (1)

Publication Number Publication Date
WO2016074630A1 true WO2016074630A1 (fr) 2016-05-19

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ID=55953751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/094448 WO2016074630A1 (fr) 2014-11-14 2015-11-12 Ensemble filtre

Country Status (1)

Country Link
WO (1) WO2016074630A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382381A (zh) * 2016-08-28 2017-02-08 杭州富阳中荷电子有限公司 水路旁路的即拆式密封连接结构
DE102016001852A1 (de) * 2016-02-18 2017-08-24 Mann + Hummel Gmbh Filtereinheit, Filtersystem und Kraftfahrzeug mit Filtersystem
US11779866B2 (en) 2020-04-28 2023-10-10 Entegris, Inc. Modular filter manifold

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405528A (en) * 1990-04-20 1995-04-11 Memtec Limited Modular microporous filter assemblies
CN1649660A (zh) * 2002-03-04 2005-08-03 库利甘国际公司 摆动过滤器盖组件
CN101111302A (zh) * 2005-01-27 2008-01-23 怡口净水有限责任公司 密封的水处理系统
CN101855006A (zh) * 2007-09-20 2010-10-06 曼弗雷德·弗尔克尔 过滤模块及其形成过滤系统的组合
CN104707481A (zh) * 2015-03-11 2015-06-17 天纳克（苏州）排放系统有限公司 过滤器组件
CN204502803U (zh) * 2015-03-11 2015-07-29 天纳克（苏州）排放系统有限公司 过滤器组件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405528A (en) * 1990-04-20 1995-04-11 Memtec Limited Modular microporous filter assemblies
CN1649660A (zh) * 2002-03-04 2005-08-03 库利甘国际公司 摆动过滤器盖组件
CN101111302A (zh) * 2005-01-27 2008-01-23 怡口净水有限责任公司 密封的水处理系统
CN101855006A (zh) * 2007-09-20 2010-10-06 曼弗雷德·弗尔克尔 过滤模块及其形成过滤系统的组合
CN104707481A (zh) * 2015-03-11 2015-06-17 天纳克（苏州）排放系统有限公司 过滤器组件
CN204502803U (zh) * 2015-03-11 2015-07-29 天纳克（苏州）排放系统有限公司 过滤器组件

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016001852A1 (de) * 2016-02-18 2017-08-24 Mann + Hummel Gmbh Filtereinheit, Filtersystem und Kraftfahrzeug mit Filtersystem
CN106382381A (zh) * 2016-08-28 2017-02-08 杭州富阳中荷电子有限公司 水路旁路的即拆式密封连接结构
US11779866B2 (en) 2020-04-28 2023-10-10 Entegris, Inc. Modular filter manifold

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