CN219865199U - Wall-flow type particle filter - Google Patents
Wall-flow type particle filter Download PDFInfo
- Publication number
- CN219865199U CN219865199U CN202321196418.5U CN202321196418U CN219865199U CN 219865199 U CN219865199 U CN 219865199U CN 202321196418 U CN202321196418 U CN 202321196418U CN 219865199 U CN219865199 U CN 219865199U
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- Prior art keywords
- metal outer
- outer cylinder
- wall
- annular plate
- cylinder
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- 239000002245 particle Substances 0.000 title abstract description 39
- 239000002184 metal Substances 0.000 claims abstract description 54
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 238000004140 cleaning Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model relates to the technical field of tail gas filters, in particular to a wall-flow type particle filter, which comprises a metal outer cylinder and connecting cylinders with two ends respectively connected, wherein a first heat-resistant annular plate and clamping annular plates positioned at the two ends of the first heat-resistant annular plate are fixedly arranged on the inner wall of the metal outer cylinder, a clamping annular plate and a second heat-resistant annular plate positioned at one side of the clamping annular plate are respectively fixed on the inner wall of each connecting cylinder, sealing ring gaskets respectively attached to the inner walls of the metal outer cylinder and the connecting cylinders at the two ends are respectively fixedly arranged at the connecting gaps of the metal outer cylinder and the connecting cylinders at the two ends, a ceramic filter element is arranged in the annular interior of each sealing ring gasket, a temperature sensor is fixedly arranged at the top end of the metal outer cylinder, and a pressure sensor is fixedly arranged at the top end of one connecting cylinder. The utility model can monitor the pressure condition and the heating temperature in the particle filter in real time in the cleaning process, is convenient for accurately controlling the time and the heating temperature of ash cleaning and blowing, and avoids incomplete cleaning and influences on the service life of the particle filter.
Description
Technical Field
The utility model relates to the technical field of tail gas filters, in particular to a wall-flow type particle filter.
Background
The particulate filter (DPF for short) is a device which is arranged in an exhaust system of a diesel vehicle and used for effectively purifying carbon particles through filtration, and after a certain running time and mileage of the vehicle, the DPF can be blocked along with the increase of the accumulation amount of particulate matters in the DPF, so that the exhaust back pressure is increased, the economy of a diesel engine is influenced, and the efficiency of capturing the carbon particles by the particulate filter is reduced. Therefore, when the cumulative amount of particulate matter reaches a certain limit, it is necessary to burn the particulate matter trapped in the DPF to remove the particulate matter deposited in the DPF, and the DPF is returned to the original operating state, which is called regeneration of the DPF. However, in the regeneration process, only the soot in the DPF is removed, but ash substances other than soot are not removed, and ash cannot burn, so that with a plurality of regenerations, ash substances are also accumulated to a large extent, the effective volume of the DPF is reduced, and the function of the DPF is deteriorated. Therefore, the interior of the DPF is also required to be cleaned and regenerated regularly, so that the service life of the DPF is prolonged, the power loss of the engine is reduced, and the fuel consumption is reduced.
The particle filter is generally designed into a wall flow structure, and the commonly used filter element material is a cordierite honeycomb ceramic carrier filter element, so that the particle filter has high porosity. In the existing ash removal method of the particle filter, the DPF is generally removed from a vehicle, and compressed air is adopted to blow back the DPF after heating so as to reversely blow ash in the pores of the filter element. Although the soot blowing time can be correspondingly prolonged or shortened according to the blocking condition of the DPF, the cleaning effect of the DPF cannot be accurately controlled, whether the DPF is recovered to the optimal use effect cannot be judged, pores and ash can be thoroughly combined due to incomplete long-term cleaning, and the service life of the DPF is shortened.
In addition, adopting compressed air to carry out high pressure to DPF and sweeping not only easily damaging the connection leakproofness of DPF urceolus, still can be in the sweeping process, make the raise dust of ash content escape in the urceolus gap of DPF, there is one-level carcinogen in the ash content, the pollution that causes after the escape can bring great personal harm for the staff of clearance.
Disclosure of Invention
The utility model aims to provide a wall-flow type particle filter which has a reasonable structure, can realize continuous filtration and can monitor and analyze the ash removal effect.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a wall flow type particulate filter, includes the metal urceolus, the both ends of metal urceolus are connected with the connecting cylinder respectively, each the connecting cylinder is kept away from the one end of metal urceolus is the binding-like setting, the inner wall fixed laminating of metal urceolus is provided with first heat-resisting ring plate, first heat-resisting ring plate both ends be provided with respectively with the clamping ring plate of inner wall fixed connection of metal urceolus, each the inner wall of connecting cylinder also is fixedly connected with clamping ring plate respectively, and in the connecting cylinder clamping ring plate keep away from one side of metal urceolus all is provided with the heat-resisting ring plate of second, the heat-resisting ring plate of second all fixed laminating set up in the inner wall of connecting cylinder, the metal urceolus all fixedly provided with the inner wall of metal urceolus and the sealing ring pad that the connecting cylinder inner wall laminated respectively, the annular inside of sealing ring pad is provided with the ceramic filter core, the metal urceolus top is fixedly provided with temperature sensor, the sensing end of temperature sensor all run through in the metal urceolus with the inside of first heat-resisting ring plate, one of them sensing ring plate all fixedly arranged with pressure sensor extends into the inside the pressure sensor.
Preferably, the radial sections of the first heat-resistant annular plate, the clamping annular plate, the second heat-resistant annular plate and the sealing ring pad are all in circular ring shape.
Preferably, the two ends of each sealing ring pad and the two ends of each ceramic filter element respectively prop against the clamping ring plate in the metal outer cylinder and the clamping ring plate in the connecting cylinder, annular grooves are formed in the side wall, close to the ceramic filter element, of the clamping ring plate along the circumferential direction of the clamping ring plate, annular grooves are fixedly formed in the two ends of the ceramic filter element along the circumferential direction of the ceramic filter element respectively, and the annular grooves at the two ends of the ceramic filter element are respectively connected with the annular grooves on the side wall of the adjacent clamping ring plate in a jogged mode.
Preferably, flange plates are fixedly arranged at both ends of the metal outer cylinder and one end, close to the metal outer cylinder, of the connecting cylinder, and the metal outer cylinder and the connecting cylinders at both ends of the metal outer cylinder are fixedly connected through the flange plates and external locking studs penetrating through the flange plates.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the pressure sensor and the temperature sensor, the pressure condition and the heating temperature after dredging the interior of the particle filter main body can be monitored in the working process of ash removal and purging, and the ash removal and dredging effects of the particle filter can be monitored and analyzed in real time in the ash removal process by comparing the pressure before the compressed air is purged with the dredging pressure in the interior of the particle filter main body. The real-time temperature inside the particle filter main body is monitored, so that in the purging process, the heating device is adjusted timely, and the temperature inside the particle filter main body is always kept under a proper temperature condition. The dredging pressure and the automatic preheating and heating time which are required to be achieved by the target can be set according to the blocking condition before the ash removal of the particle filter, so that the situation that the ash removal and purging of the particle filter are carried out for too long or the heating temperature is too high is avoided, the internal structure of the particle filter is damaged, the situation that the cleaning is not thorough due to too short ash removal time or insufficient heating temperature of the particle filter is avoided, the service life of the particle filter is influenced, and the regeneration efficiency of the particle filter is reduced.
Through setting up first heat-resisting annular plate, clamping annular plate, sealing ring pad and the heat-resisting annular plate of second, especially sealing ring pad, can play the pressure equipment leak protection gas effect to the seam port position of metal urceolus and connecting cylinder, the ash content that blows out from ceramic filter core hole inside is by the separation inside particulate filter to be convenient for discharge or by collecting from the other end that compressed air got into, avoid the ash content to escape the particulate filter outside and cause the pollution, also avoided causing personal harm to the staff of clearance.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the mounting structure of the flange plate according to the present utility model;
FIG. 3 is an enlarged view of a partial structure at A in FIG. 2;
FIG. 4 is a schematic diagram of the pore distribution structure of the present utility model;
FIG. 5 is an enlarged view of a partial structure at B in FIG. 4;
FIG. 6 is a schematic diagram of the distribution structure of the permeable wall according to the present utility model.
In the figure: 1-metal outer cylinder, 2-connecting cylinder, 3-flange, 4-first heat-resistant annular plate, 5-pressure sensor, 6-temperature sensor, 7-clamping annular plate, 8-second heat-resistant annular plate, 9-sealing ring gasket, 10-ceramic filter element, 11-annular strip, 12-pore, 13-closed end and 14-permeable wall.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution:
the wall-flow type particle filter comprises a metal outer cylinder 1, wherein two ends of the metal outer cylinder 1 are respectively connected with connecting cylinders 2, and one ends, far away from the metal outer cylinder 1, of the connecting cylinders 2 are all in a convergent shape. The flange 3 is fixedly arranged at both ends of the metal outer cylinder 1 and one end of the connecting cylinder 2, which is close to the metal outer cylinder 1, and the metal outer cylinder 1 and the connecting cylinder 2 at both ends of the metal outer cylinder are fixedly connected through the flange 3 and an external locking stud penetrating through the flange 3 so as to facilitate rapid assembly and disassembly of the particle filter main body.
The inner wall of the metal outer cylinder 1 is fixedly attached with a first heat-resistant annular plate 4, two ends of the first heat-resistant annular plate 4 are respectively provided with clamping annular plates 7 fixedly connected with the inner wall of the metal outer cylinder 1, the inner walls of the connecting cylinders 2 are also respectively fixedly connected with the clamping annular plates 7, one sides of the clamping annular plates 7 in the connecting cylinders 2 far away from the metal outer cylinder 1 are respectively provided with a second heat-resistant annular plate 8, the second heat-resistant annular plates 8 are fixedly attached to the inner wall of the connecting cylinders 2, the connecting gaps of the metal outer cylinder 1 and the connecting cylinders 2 at two ends of the metal outer cylinder are respectively fixedly provided with sealing ring gaskets 9 attached to the inner wall of the metal outer cylinder 1 and the inner wall of the connecting cylinders 2, the annular interiors of the sealing ring gaskets 9 are respectively provided with ceramic filter cores 10, the ceramic filter cores 10 are porous, a large number of pores 12 are formed in the interiors of the ceramic filter cores, closed ends 13 are formed in the pores 12, permeable walls 14 are formed between the adjacent pores 12, and the outer sides of the permeable walls 14 are usually coated with catalysts. During normal operation of the particulate filter, carbon particles and ash materials in the vehicle exhaust are filtered and accumulated in the pores 12 near the closed end 13, and the rest of the gas is circulated to the subsequent treatment system through the permeable wall 14. The top of the metal outer cylinder 1 is fixedly provided with a temperature sensor 6, and the sensing ends of the temperature sensor 6 penetrate through and extend into the metal outer cylinder 1 and the first heat-resistant annular plate 4. One of them connecting cylinder 2 top is fixed and is provided with pressure sensor 5, and pressure sensor 5's response end runs through and stretches into in connecting cylinder 2 and the inside of second heat-resisting annular plate 8.
In this embodiment, the radial cross sections of the first heat-resistant ring plate 4, the snap-fit ring plate 7, the second heat-resistant ring plate 8, and the seal ring pad 9 are all circular ring-shaped.
In this embodiment, two ends of each sealing ring pad 9 and two ends of each ceramic filter element 10 respectively abut against the clamping ring plate 7 in the metal outer cylinder 1 and the clamping ring plate 7 in the connecting cylinder 2, annular grooves are formed in the side wall, close to the ceramic filter element 10, of the clamping ring plate 7 along the circumferential direction of the clamping ring plate 7, annular grooves 11 are fixedly formed in two ends of the ceramic filter element 10 along the circumferential direction of the ceramic filter element, and the annular grooves 11 at two ends of the ceramic filter element 10 are respectively connected with the annular grooves on the side wall of the adjacent clamping ring plate 7 in a jogged manner. So as to increase the limiting and fixing effects of the sealing ring gasket 9 and clamping ring plates 7 at the two ends of the sealing ring gasket on the ceramic filter element 10.
The working principle of the utility model is as follows: the utility model provides a wall-flow type particle filter, wherein a pressure sensor 5 and a temperature sensor 6 can monitor the pressure condition and the heating temperature of the interior of a particle filter main body after dredging in the working process of ash cleaning and purging, and the ash cleaning and dredging effect of the particle filter can be monitored and analyzed in real time in the ash cleaning process by comparing the pressure before the compressed air is purged with the dredging pressure of the interior of the particle filter main body. The real-time temperature inside the particle filter main body is monitored, so that in the purging process, the heating device is adjusted timely, and the temperature inside the particle filter main body is always kept under a proper temperature condition. The dredging pressure and the automatic preheating and heating time which are required to be achieved by the target can be set according to the blocking condition before the ash removal of the particle filter, so that the situation that the ash removal and purging of the particle filter are carried out for too long or the heating temperature is too high, the internal structure of the particle filter is damaged, and the situation that the cleaning is not thorough and the service life of the particle filter is influenced due to too short purging time or insufficient heating temperature of the particle filter can be avoided.
The first heat-resistant annular plate 4, the clamping annular plate 7, the sealing ring gasket 9 and the second heat-resistant annular plate 8, particularly the sealing ring gasket 9, can play a role in preventing air leakage in the press fitting of the joint port position of the metal outer cylinder 1 and the connecting cylinder 2, ash blown out from the inside of the pore 12 of the ceramic filter element 10 is blocked inside the particle filter so as to be conveniently discharged or collected from the other end where compressed air enters, pollution caused by the fact that the ash escapes from the outside of the particle filter is avoided, and personal harm to cleaning staff is avoided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A wall-flow particulate filter comprising a metal outer cylinder (1), characterized in that: the two ends of the metal outer cylinder (1) are respectively connected with a connecting cylinder (2), one end of each connecting cylinder (2) far away from the metal outer cylinder (1) is in a closed state, a first heat-resistant annular plate (4) is fixedly attached to the inner wall of the metal outer cylinder (1), two ends of each first heat-resistant annular plate (4) are respectively provided with a clamping annular plate (7) fixedly connected with the inner wall of the metal outer cylinder (1), the inner wall of each connecting cylinder (2) is also respectively fixedly connected with a clamping annular plate (7), one side, far away from the metal outer cylinder (1), of each connecting cylinder (2) is provided with a second heat-resistant annular plate (8), the second heat-resistant annular plates (8) are fixedly attached to the inner wall of the connecting cylinder (2), the connecting gaps of the metal outer cylinder (1) and the connecting cylinders (2) at the two ends of the connecting cylinder are fixedly provided with pads (9) respectively attached to the inner wall of the metal outer cylinder (1), the inner walls of the connecting cylinder (2) are also fixedly connected with a clamping annular plate (7), the inner wall of the metal outer cylinder (1) is provided with a temperature-resistant sealing ring (6), the inner ceramic ring (6) is fixedly attached to the inner end of the metal outer cylinder (1), the inner cylinder (6) is provided with a temperature-resistant sensor (6), one of them connecting cylinder (2) top is fixed to be provided with pressure sensor (5), and the response end of pressure sensor (5) runs through stretch into connecting cylinder (2) with the inside of second heat-resisting annular plate (8).
2. A wall-flow particulate filter as claimed in claim 1, wherein: the radial sections of the first heat-resistant annular plate (4), the clamping annular plate (7), the second heat-resistant annular plate (8) and the sealing ring pad (9) are all in annular arrangement.
3. A wall-flow particulate filter as claimed in claim 1, wherein: the two ends of each sealing ring pad (9) and the two ends of each ceramic filter element (10) respectively abut against the clamping ring plate (7) in the metal outer cylinder (1) and the clamping ring plate (7) in the connecting cylinder (2), annular grooves are formed in the clamping ring plate (7) close to the side wall of the ceramic filter element (10) along the circumferential direction of the clamping ring plate (7), annular grooves (11) are fixedly formed in the two ends of the ceramic filter element (10) along the circumferential direction of the ceramic filter element respectively, and the annular grooves (11) at the two ends of the ceramic filter element (10) are respectively connected with the annular grooves on the side walls of the adjacent clamping ring plates (7) in a jogged mode.
4. A wall-flow particulate filter as claimed in claim 1, wherein: the flange plates (3) are fixedly arranged at two ends of the metal outer cylinder (1) and one end, close to the metal outer cylinder (1), of the connecting cylinder (2), and the metal outer cylinder (1) is fixedly connected with the connecting cylinders (2) at two ends of the metal outer cylinder through the flange plates (3) and external locking studs penetrating through the flange plates (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321196418.5U CN219865199U (en) | 2023-05-17 | 2023-05-17 | Wall-flow type particle filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321196418.5U CN219865199U (en) | 2023-05-17 | 2023-05-17 | Wall-flow type particle filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219865199U true CN219865199U (en) | 2023-10-20 |
Family
ID=88344536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321196418.5U Active CN219865199U (en) | 2023-05-17 | 2023-05-17 | Wall-flow type particle filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219865199U (en) |
-
2023
- 2023-05-17 CN CN202321196418.5U patent/CN219865199U/en active Active
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