CN102840012B - Diesel engine particle filter capable of rapidly replacing filter core - Google Patents
Diesel engine particle filter capable of rapidly replacing filter core Download PDFInfo
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- CN102840012B CN102840012B CN201210361561.5A CN201210361561A CN102840012B CN 102840012 B CN102840012 B CN 102840012B CN 201210361561 A CN201210361561 A CN 201210361561A CN 102840012 B CN102840012 B CN 102840012B
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- outlet pipe
- filter core
- flange plate
- filter
- cylindrical shell
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Abstract
The invention provides a diesel engine particle filter capable of rapidly replacing a filter core; the diesel engine particle filter mainly comprises an upper gas exhaust pipe, a lower gas exhaust pipe, a cylindrical shell and the filter core which is arranged in the cylindrical shell, wherein the distance between the external circumferential surface of the filter core and the internal circumferential surface of the cylindrical shell is 1 mm; the filter core is an integrated structure, which is formed by a metal cylinder and stainless steel meshes with circular cross sections; the stainless steel meshes are vertical to the middle axis of the filter core and closely overlaid in the metal cylinder along a direction of the middle axis layer by layer; apertures of the stainless steel meshes are divided into three specifications of 200 meshes, 160 meshes and 120 meshes from the upper gas exhaust pipe end to the lower gas exhaust pipe end; the overlaying thickness of the stainless steel mesh of each specification accounts for 1/3 of the axial length of the metal cylinder; and clamping grooves and hanging ears are also arranged on flange plates of the upper and lower gas exhaust pipes. According to the invention, the filtering efficiency is increased, pressure loss of the tail gas in the filter can be reduced by the stainless steel meshes, the power of an engine is increased, the filter core is convenient to assemble and disassemble, and convenience for maintaining and replacing the filter is achieved.
Description
Technical field
The present invention relates to the post-processing technology field of diesel engine, specifically a kind of diesel particulate filter of fast changeable filter core.
Background technique
Two large main trend of vehicular engine development are energy-conservation and environmental protection.Diesel engine has that the thermal efficiency is high, fuel economy good, low speed torque is large, long service life and the feature such as maintenance cost is low, and the fuel consumption of diesel engine and CO
2discharge amount is fewer 30% than the petrol engine of Same Efficieney, and this makes diesel engine become a few days ago comparatively ripe energy-conservation first-selected power, is widely used in the every field of national economy.
But diesel engine maximum problem in application is that its particulate matter discharge is many, along with the increase increasingly of environmental protection problem significance, reduces the important directions that Harmful Emissions of Diesel Engine becomes diesel engine development in the world today.In diesel exhaust gas, contain a large amount of particulates, its particle diameter is little, lightweight, can be suspended in for a long time in atmosphere, easily by human body, is sucked and be deposited in alveolar, health is caused to great harm, easily cause that breathing problem, asthma, cancer etc. are to the great disease of human health damage; Also can exert an influence to environment, as atmospheric pollution, water pollution, acid rain, global warming etc.; Simultaneously, Atmospheric Grains is also one of problem of paying close attention to of environmental administration on the impact of visibility always, although the aerosol in the particulate of diesel emission only accounts for sub-fraction, but the optical property impact on atmosphere even can reach 99%, the extinction coefficient of carbon soot particles is 2-3 times of transparent grain, and the carbon soot particles of lesser amt just can cause some local visibility to reduce half.Therefore, the discharge of diesel engine has caused the generally attention of various countries, and has formulated the rules of corresponding control motor vehicle emission, and strict Abgasgesetz makes Exhaust Control for Diesel Engine technology become the emphasis of diesel engine industry research.
The control technique of diesel emission is to improve gradually along with improving of Abgasgesetz, in order to reach emission regulation demands, purification diesel engine particulate matter is to solve the major issue that diesel engine pollutes, existing tail gas particle catcher, filtering material has ceramic fiber, foam ceramic filter body, wall-flow honeycomb ceramic filter etc., and these material for core are mostly expensive.Although there is the advantage high to the arresting efficiency of particle in existing filter,, because captive particulate matter is gathered in catcher, increase along with particulate matter in catcher, the exhaust back pressure of motor can progressively rise, and to a certain degree rear engine oil consumption meeting increases, and efficiency can reduce.
Summary of the invention
The shortcomings such as efficiency is low when processing the particle of diesel emission, engine consumption large in order to solve prior art, filter core dismounting difficulty, the invention provides a kind of simple in structure, cost is low, the diesel particulate filter of the fast changeable filter core of easy accessibility.
The present invention solves the problems of the technologies described above adopted technological scheme to be: a kind of diesel particulate filter of fast changeable filter core, mainly by upper outlet pipe, lower outlet pipe, circular cylindrical shell and the filter core being located in circular cylindrical shell form, the inner peripheral surface spacing of the outer peripheral surface of described filter core and circular cylindrical shell is 1mm, filter core is the integrative-structure that circular stainless (steel) wire forms by metallic cylinder and cross section, stainless (steel) wire is perpendicular to filter core medial axis, and closely overlay in metallic cylinder layer by layer along medial axis direction, stainless (steel) wire is divided into three kind specifications to lower exhaust pipe end according to pore size from upper exhaust pipe end, 200 orders successively, 160 orders, 120 orders, the thickness that stacks of all size stainless (steel) wire all accounts for 1/3rd of metallic cylinder axial length, on the flange plate of the flange plate of described upper outlet pipe and lower outlet pipe, be equipped with the draw-in groove of clamping circular cylindrical shell, on the circumferencial direction of flange plate and flange plate, be evenly provided with respectively four hangers, on four hangers of flange plate, be equipped with spring carrier arm.
Described metallic cylinder connects one end uncovered of upper outlet pipe, and the other end is welded with cross-shape frame, for fixing stainless (steel) wire.
Draw-in groove place on described upper and lower outlet pipe flange plate is also provided with pad, prevents filter gas leakage when work.
Hangers on described upper and lower outlet pipe flange plate is symmetrical in the vertical axis direction setting of circular cylindrical shell.
Described spring carrier arm can rotate by the circumferencial direction of hangers on lower outlet pipe flange plate, and the hangers of being convenient to spring carrier arm and upper outlet pipe is used in conjunction with, and clamps filter core; Meanwhile, be convenient to dismounting and the maintenance of filter core.
The inner peripheral surface spacing 1mm of the outer peripheral surface of described filter core and circular cylindrical shell, guaranteed when cold state, to be convenient to more renew cartridge, and when engine running, due to the effect of expanded by heating, the spacing of 1mm will be cancelled, and guarantees the normal work of filter.
The draw-in groove of flange plate setting of the present invention plays positioning action to circular cylindrical shell, the activity surplus axially and radially of restriction circular cylindrical shell, and the pad at draw-in groove place plays seal action to filter core, prevents the leakage of tail gas.
Beneficial effect of the present invention:
(1) during engine operation, the stainless (steel) wire that the particulate matter in tail gas is closely stacked by filter core interior-layer layer filters out, and filter cartridge construction compactness is closely knit, long service life, and after part stainless (steel) wire damages, can change in time;
(2) for Automobile Design, the radial dimension of tail-gas after treatment apparatus requires strict, insensitive to axial dimension requirement, and the present invention can suitably increase the quantity of stainless (steel) wire to improve filter efficiency;
(3) in filter core of the present invention, the pore size of stainless (steel) wire is different, the aperture that starts stainless (steel) wire from upper exhaust pipe end is reduced successively by 200 orders, 160 orders, 120 orders, aperture from big to small can effectively reduce the discharge of particle in tail gas, avoided mutually piling up because of the particle of various diameters the problem that causes filter life cycle short simultaneously, improved filter efficiency; And this structure can reduce the pressure loss of tail gas in filter, reduced the exhaust back pressure of motor, the power of motor is improved;
(4) spring carrier arm arranging on hangers can be realized the fast assembling-disassembling of filter core, renew cartridge more, prevents that filter core is aging, loses efficacy, and has improved filter efficiency, and has been convenient to maintenance, maintenance and the replacing of filter, reduces costs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Reference character: 1, lower outlet pipe; 2, circular cylindrical shell; 3, upper outlet pipe; 4, filter core; 5, metallic cylinder; 6, stainless (steel) wire; 7, spring carrier arm; 8, hangers; 1-1, flange plate; 3-1, flange plate.
Embodiment
As shown in Figure 1, a kind of diesel particulate filter of fast changeable filter core, mainly by upper outlet pipe 3, lower outlet pipe 1, circular cylindrical shell 2 and the filter core 4 being located in circular cylindrical shell 2 form, the inner peripheral surface spacing of the outer peripheral surface of filter core 4 and circular cylindrical shell 2 is 1mm, filter core 4 is the integrative-structure that circular stainless (steel) wire 6 forms by metallic cylinder 5 and cross section, metallic cylinder 5 connects one end uncovered of upper outlet pipe 3, the other end is welded with cross-shape frame, stainless (steel) wire 6 is perpendicular to filter core 4 medial axis, and closely overlay layer by layer in metallic cylinder 5 along medial axis direction, stainless (steel) wire 6 is divided into three kind specifications to lower outlet pipe 1 end according to pore size from upper outlet pipe 3 ends, 200 orders successively, 160 orders, 120 orders, the thickness that stacks of all size stainless (steel) wire 6 all accounts for 1/3rd of metallic cylinder 5 axial lengths, the draw-in groove that is equipped with clamping circular cylindrical shell 2 on the flange plate 3-1 of upper outlet pipe 3 and the flange plate 1-1 of lower outlet pipe 1, draw-in groove place is also provided with pad, prevents gas leakage, the circumferencial direction of flange plate 3-1 and flange plate 1-1 is evenly provided with respectively four hangers 8, is equipped with the spring carrier arm 7 that can rotate at hangers circumferencial direction on four hangers 8 of flange plate 1-1.
Hangers 8 on described flange plate 3-1 and flange plate 1-1 is symmetrical in the vertical axis direction setting of circular cylindrical shell 2.
Diesel filter of the present invention can be divided into three parts: the outlet pipe at stage casing circular cylindrical shell and two ends, and the dismounting of filter core needs trip spring hook; The location of filter core needs Regulation spring hook, makes the outlet pipe clamping circular cylindrical shell at two ends prevent its axial float.
When diesel engine turns round, the waste gas of motor enters from upper outlet pipe, and through filter, the particulate matter in waste gas is deposited on the filter core of filter, reaches the object that reduces diesel particulate discharge.After diesel engine running, along with the particle depositing on filter increases, filtration resistance increases, to a certain degree, need the filter core of filter to clear up, only need to change the filter core in filter, be used in conjunction with spring carrier arm fast changeable filter core, remove and be deposited on the particle on stainless (steel) wire in filter core, make it again in serviceable condition.
Claims (4)
1. the diesel particulate filter of a fast changeable filter core, mainly by upper outlet pipe (3), lower outlet pipe (1), circular cylindrical shell (2) and the filter core (4) being located in circular cylindrical shell (2) form, it is characterized in that: the inner peripheral surface spacing of the outer peripheral surface of described filter core (4) and circular cylindrical shell (2) is 1mm, filter core (4) is the integrative-structure that circular stainless (steel) wire (6) forms by metallic cylinder (5) and cross section, stainless (steel) wire (6) is perpendicular to filter core (4) medial axis, and closely overlay layer by layer in metallic cylinder (5) along medial axis direction, stainless (steel) wire (6) is divided into three kind specifications to lower outlet pipe (1) end according to pore size from upper outlet pipe (3) end, 200 orders successively, 160 orders, 120 orders, the thickness that stacks of all size stainless (steel) wire (6) all accounts for 1/3rd of metallic cylinder (5) axial length, on the flange plate (3-1) of described upper outlet pipe (3) and the flange plate (1-1) of lower outlet pipe (1), be equipped with the draw-in groove of clamping circular cylindrical shell (2), on the circumferencial direction of the flange plate (3-1) of upper outlet pipe (3) and the flange plate (1-1) of lower outlet pipe (1), be evenly provided with respectively four hangers (8), on four hangers (8) of the flange plate (1-1) of lower outlet pipe (1), be equipped with spring carrier arm (7), spring carrier arm (7) can be in the above circumferencial direction rotation of hangers (8) of flange plate (1-1) of lower outlet pipe (1).
2. the diesel particulate filter of a kind of fast changeable filter core according to claim 1, is characterized in that: one end uncovered of outlet pipe (3) in described metallic cylinder (5) connection, the other end is welded with cross-shape frame.
3. the diesel particulate filter of a kind of fast changeable filter core according to claim 1, is characterized in that: the draw-in groove place of the flange plate (3-1) of described upper outlet pipe (3) and the flange plate (1-1) of lower outlet pipe (1) is also provided with pad.
4. the diesel particulate filter of a kind of fast changeable filter core according to claim 1, is characterized in that: the vertical axis direction that the hangers (8) on the flange plate (3-1) of described upper outlet pipe (3) and the flange plate (1-1) of lower outlet pipe (1) is symmetrical in circular cylindrical shell (2) arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210361561.5A CN102840012B (en) | 2012-09-26 | 2012-09-26 | Diesel engine particle filter capable of rapidly replacing filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210361561.5A CN102840012B (en) | 2012-09-26 | 2012-09-26 | Diesel engine particle filter capable of rapidly replacing filter core |
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| Publication Number | Publication Date |
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| CN102840012A CN102840012A (en) | 2012-12-26 |
| CN102840012B true CN102840012B (en) | 2014-08-20 |
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| CN201210361561.5A Expired - Fee Related CN102840012B (en) | 2012-09-26 | 2012-09-26 | Diesel engine particle filter capable of rapidly replacing filter core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023288219A1 (en) * | 2021-07-12 | 2023-01-19 | Diesel Emission Technologies Llc | System and process for replacing a core of diesel emission control device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071883A (en) * | 2016-11-10 | 2018-05-25 | 天津市昊航复合管业有限公司 | A kind of connector fixing device of composite steel tube |
| CN107781011A (en) * | 2017-09-28 | 2018-03-09 | 徐州瑞田工程机械有限公司 | A kind of silencer of fast changeable mesh undulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4250146A (en) * | 1979-10-05 | 1981-02-10 | Uop Inc. | Caseless monolithic catalytic converter |
| US7665771B2 (en) * | 2004-02-10 | 2010-02-23 | Jerry Roos | Flexible header joint |
| CN2823569Y (en) * | 2005-07-28 | 2006-10-04 | 洛阳北方企业集团有限公司 | Detachable catalyst motorcycle exhausting silencer device |
| CN100510334C (en) * | 2007-05-25 | 2009-07-08 | 吉林大学 | Diesel engine particle catcher |
| CN202866939U (en) * | 2012-09-26 | 2013-04-10 | 河南科技大学 | Diesel engine particulate filter with filter element capable of rapidly being replaced |
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- 2012-09-26 CN CN201210361561.5A patent/CN102840012B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023288219A1 (en) * | 2021-07-12 | 2023-01-19 | Diesel Emission Technologies Llc | System and process for replacing a core of diesel emission control device |
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| CN102840012A (en) | 2012-12-26 |
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