CN107559071A - A kind of particulate filter filter cartridge construction - Google Patents
A kind of particulate filter filter cartridge construction Download PDFInfo
- Publication number
- CN107559071A CN107559071A CN201710998789.8A CN201710998789A CN107559071A CN 107559071 A CN107559071 A CN 107559071A CN 201710998789 A CN201710998789 A CN 201710998789A CN 107559071 A CN107559071 A CN 107559071A
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- CN
- China
- Prior art keywords
- filter
- cartridge construction
- particulate
- zigzag
- foamed ceramics
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- Legal status (The legal status 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 status listed.)
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The present invention provides a kind of particulate filter filter cartridge construction, greatly reduces resistance when gas flows through by increasing some tortuous passageways and reduces the exhaust back pressure of filter, it is characterised in that：Filter core material therefor is porosity 75% 85%, linear 10 12 holes of hole density/cm three-dimensional communication network structure foam silicon carbide ceramics, encapsulated at the rear portion of middle clear opening with the foamed ceramics, the surface of the foamed ceramics is made into zigzag is assembled using engagement system and form zigzag vent again.
Description
Technical field
The present invention relates to a kind of filter core, more particularly to a kind of Filter Element Structure for Particulates Filtration from Diesel Exhaust.
Background technology
Exhaust gas aftertreatment techniques using particulate filter as core are to control the effective measures of diesel particulates discharge,
For the filter element of ordinary construction, when exhaust passes through, micro particle filtering is concentrated mainly on filtration cartridge inlet end, makes exhaust back pressure
Rise too fast, it is necessary to frequent regeneration in use, influence the service life of filter；On the other hand, filter core length is also caused
Degree can not be effectively used for micro particle filtering.In general, increase filter element cross-sectional area can reduce exhaust back pressure, still
Simple increase filter core cross-sectional area can not improve the uniformity that particulate is distributed inside filter core, it is impossible to rationally be grown using filter core
Degree, and the cross-sectional area of filter is also limited by vehicle installing space in practical application.
The content of the invention
A kind of in view of the above-mentioned problems, geometry that the present invention passes through optimization design filter element, there is provided micro particle filtering
Device filter cartridge construction, it is characterised in that：Filter core material therefor is porosity 75%-85%, linear hole density 10-12 holes/cm three-dimensional
Netted structural carbon SiClx foamed ceramics is connected, is encapsulated at the rear portion of middle clear opening with the foamed ceramics, the foam is made pottery
The surface of porcelain is made zigzag and is assembled again using engagement system and form zigzag vent.
Through actual measurement, resistance when gas flows through can be greatly reduced by increasing some tortuous passages in the design of filter cartridge construction
Power, reduce the exhaust back pressure of filter.The route that tortuous passageway flows through exhaust changes, and also have impact on filter to particulate
Strainability.In use, it was also found that from inlet end to outlet side, particulate is deposited on filter core hole muscle surface than more uniform, with
Monolithic is superimposed filter cartridge construction particulate in a large amount of sedimentary facies ratios of inlet end, illustrate that filter cartridge construction change makes particulate in filter core inner homogeneous
Distribution, effective filtration volume of filter core is improved, it also avoid after filter works a period of time, due to inlet end filter core quilt
Particles holography, the drawbacks of causing exhaust back pressure to raise rapidly.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
1- clear openings, 2- zigzag vents.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
Such as a kind of Fig. 1 particulate filter filter cartridge constructions provided by the invention, filter core material therefor is porosity 80%, linearly
11 holes of hole density/cm three-dimensional communication network structure foam silicon carbide ceramics, are made pottery at the rear portion of middle clear opening 1 with the foam
Porcelain is encapsulated, and the surface of the foamed ceramics is made into zigzag is assembled using engagement system and form zigzag vent 2 again.
Filter size is 210mm × 140mm × 150mm, and cross-sectional area is 2.94 × 10-2m2, applied to 8140.45 diesel engines,
Discharge capacity is 3.0L, rotating speed is 1100 ~ 3600r/min, delivery temperature is 400 ~ 550 DEG C.
The average filtration efficiency of the filter reaches 51.1%, integrally-built decline 19.5% only more common than same volume,
Exhaust back pressure during rated speed is 21.3kPa, it is more common than same volume it is integrally-built have dropped 52.7%, rated power declines
2.4%.This explanation present invention zigzag tortuous passageway increased in filter cartridge construction can greatly reduce resistance when gas flows through
Power, the exhaust back pressure for reducing filter.Although this have impact on strainability of the filter to particulate to a certain extent, exchange for
The exhaust back pressure effect for significantly reducing resistance of gas when flowing through and reducing filter still highly.Especially from inlet end
Filter core hole muscle surface all is deposited on than more uniform to outlet side particulate, the filter cartridge construction of this explanation present invention effectively increases filter
Effective filtration volume of core, it also avoid after filter works a period of time, because inlet end filter core becomes plugged with particles, cause
The drawbacks of exhaust back pressure raises rapidly.
Claims (1)
- A kind of 1. particulate filter filter cartridge construction, it is characterised in that：Filter core material therefor is porosity 75%-85%, linear aperture is close 10-12 holes/cm three-dimensional communication network structure foam silicon carbide ceramics are spent, at the rear portion of middle clear opening with the foamed ceramics Encapsulation, zigzag is made in the surface of the foamed ceramics and is assembled again using engagement system and forms zigzag vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998789.8A CN107559071A (en) | 2017-10-24 | 2017-10-24 | A kind of particulate filter filter cartridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710998789.8A CN107559071A (en) | 2017-10-24 | 2017-10-24 | A kind of particulate filter filter cartridge construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107559071A true CN107559071A (en) | 2018-01-09 |
Family
ID=60987219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710998789.8A Pending CN107559071A (en) | 2017-10-24 | 2017-10-24 | A kind of particulate filter filter cartridge construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107559071A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1005892A2 (en) * | 1994-11-16 | 2000-06-07 | Isuzu Ceramics Research Institute Co., Ltd. | Diesel particulate filter apparatus |
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| KR20080065488A (en) * | 2007-01-09 | 2008-07-14 | 주식회사 엘지화학 | Process for preparing plugged silicon carbide filter having excellent impact resistance |
| JP2011042521A (en) * | 2009-08-20 | 2011-03-03 | National Institute Of Advanced Industrial Science & Technology | Particulate filter and method for producing the same |
| CN102046561A (en) * | 2008-05-30 | 2011-05-04 | 康宁股份有限公司 | Low back pressure porous honeycomb and method for producing the same |
| CN102933279A (en) * | 2010-03-26 | 2013-02-13 | 伊梅斯公司 | Ceramic honeycomb structures |
-
2017
- 2017-10-24 CN CN201710998789.8A patent/CN107559071A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1005892A2 (en) * | 1994-11-16 | 2000-06-07 | Isuzu Ceramics Research Institute Co., Ltd. | Diesel particulate filter apparatus |
| CN1327410A (en) * | 1999-08-30 | 2001-12-19 | 日本碍子株式会社 | Corrugated wall honeycomb structure and production method thereof |
| KR20080065488A (en) * | 2007-01-09 | 2008-07-14 | 주식회사 엘지화학 | Process for preparing plugged silicon carbide filter having excellent impact resistance |
| CN102046561A (en) * | 2008-05-30 | 2011-05-04 | 康宁股份有限公司 | Low back pressure porous honeycomb and method for producing the same |
| JP2011042521A (en) * | 2009-08-20 | 2011-03-03 | National Institute Of Advanced Industrial Science & Technology | Particulate filter and method for producing the same |
| CN102933279A (en) * | 2010-03-26 | 2013-02-13 | 伊梅斯公司 | Ceramic honeycomb structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180109 |
|
| RJ01 | Rejection of invention patent application after publication |