CN214887300U - Engine particle catcher regeneration system - Google Patents
Engine particle catcher regeneration system Download PDFInfo
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- CN214887300U CN214887300U CN202120150342.7U CN202120150342U CN214887300U CN 214887300 U CN214887300 U CN 214887300U CN 202120150342 U CN202120150342 U CN 202120150342U CN 214887300 U CN214887300 U CN 214887300U
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Abstract
The utility model provides an engine particle catcher regeneration system, which relates to the technical field of engines and comprises a regeneration device body, wherein the regeneration device body comprises a filtering channel, a particle catcher, a back flushing device and a filter; the particulate matter catcher is arranged in the filtering channel; a pressure difference sensor is arranged on the particulate matter catcher, and the air outlet of the back flushing device faces the air outlet of the particulate matter catcher; a first valve capable of cutting off the filtering passage is arranged at the air inlet of the filtering passage; the mouth of the filter is disposed between the first valve and the particulate trap inlet. The system does not need heating, avoids the problems that the regeneration of the particulate matter catcher is not uniform due to uneven heating, the particulate matter catcher is easy to damage due to local overheating, uses wind energy, saves energy, does not cause secondary pollution, is simple to operate, improves the power performance and the fuel economy of a train engine, and is convenient to widely use.
Description
Technical Field
The utility model relates to the technical field of engines, especially, relate to an engine particle catcher regeneration system.
Background
Because the start-up process of train often can produce a large amount of soot particles with the acceleration in-process, if direct discharge engine exhaust from exhaust duct this moment, very easily lead to the blast pipe to block up and follow, consequently need set up the particulate matter trap and carry out filtration treatment to engine exhaust, but along with the long-term work of train engine, the particulate matter trap uses for a long time, and the soot particles that the inside entrapment of particulate matter trap increases gradually, leads to waste gas exhaust resistance to rise, and the oil consumption and the power of engine receive the increase of exhaust back pressure and influence. When the pipeline pressure differential of particulate matter trap both sides reached a definite value, waste gas just was difficult to discharge, has greatly restricted the dynamic nature and the fuel economy of engine, need carry out the clean reduction work of charcoal cigarette granule to particulate matter trap inside this moment, will gather the inside charcoal cigarette granule of particulate matter trap and get rid of, realize particulate matter trap's regeneration. An existing regeneration treatment mode, taking a Diesel Particulate Filter (DPF) as an example, generally adopts a mode of heating to promote the carbon smoke particles in the diesel particulate filter to be combusted again, but the mode can cause the conditions that the regeneration of the diesel particulate filter is not uniform due to nonuniform heating, the diesel particulate filter is damaged due to local overheating, and the heating regeneration mode has high requirement on temperature control and complex operation, and is not beneficial to wide application.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides an engine particle trap regeneration system need not the heating, has avoided heating inhomogeneous to cause diesel particulate filter regeneration inhomogeneous, and the easy local overheat of diesel particulate filter and the problem of damage just need not to the accurate accuse of parameter, and easy operation can extensively be used in engine technical field.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an engine particle catcher regeneration system, including the regenerating unit body, characterized in that, the regenerating unit body includes filtering channel, particulate matter catcher for filtering the soot particles in the exhaust tail gas of train engine, back flushing device for providing high-pressure air and filter for collecting the soot particles blown out by the back flushing device; the particulate matter catcher is arranged in the filtering channel; the particulate trap is provided with a differential pressure sensor, and the differential pressure sensor is used for monitoring the pressure difference value in the filtering channels at two sides of the particulate trap; the air outlet of the back flushing device faces the air outlet of the particulate matter catcher; a first valve capable of cutting off the filtering channel is arranged at the air inlet of the filtering channel; the mouth of the filter is disposed between the first valve and the particulate trap inlet.
Preferably, the back-blowing device comprises a high-pressure air nozzle; the high-pressure air spray head is communicated with an external high-pressure air source; the air outlet of the high-pressure air spray head faces the air outlet of the particulate matter catcher; the high-pressure air sprayed out of the high-pressure air spray head is in a divergent shape and can cover the air outlet of the particulate matter catcher.
Preferably, the filter is a bag filter.
Preferably, the cloth bag filter is provided with a second valve capable of isolating the cloth bag filter and the filtering channel.
Preferably, the external high-pressure air source is an air compressor of the train; and a third valve capable of isolating the air compressor from the high-pressure air sprayer is arranged between the air compressor and the high-pressure air sprayer.
Preferably, the first valve, the second valve, the third valve and the differential pressure sensor are all electrically connected with a controller.
Preferably, the particulate trap is a diesel particulate filter or a particulate oxidation catalyst or a metal felt.
Preferably, the channel between the first valve and the cloth filter is recessed from the first valve towards the cloth filter; and a channel between the cloth bag filter and the air inlet of the particulate matter catcher is sunken from the air inlet of the particulate matter catcher to the cloth bag filter.
Preferably, the air conditioner also comprises an air inlet channel and an air outlet channel; the air inlet channel is communicated with an air inlet of the regeneration device body; the air outlet pipeline is communicated with an air outlet of the regeneration device body.
The technical scheme has the following advantages or beneficial effects: the utility model provides an engine particle catcher regeneration system, which relates to the technical field of engines and comprises a regeneration device body, wherein the regeneration device body comprises a filtering channel, a particle catcher, a back flushing device and a filter; the particulate matter catcher is arranged in the filtering channel; a pressure difference sensor is arranged on the particulate matter catcher, and the air outlet of the back flushing device faces the air outlet of the particulate matter catcher; a first valve capable of cutting off the filtering passage is arranged at the air inlet of the filtering passage; the mouth of the filter is disposed between the first valve and the particulate trap inlet. The system does not need heating, avoids the problems that the regeneration of the particulate matter catcher is not uniform due to uneven heating, the particulate matter catcher is easy to damage due to local overheating, uses wind energy, saves energy, does not cause secondary pollution, is simple to operate, improves the power performance and the fuel economy of a train engine, and is convenient to widely use.
Drawings
The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic structural diagram of a regeneration system of an engine particulate trap provided in embodiment 1 of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which should not be construed as limiting the invention.
Example 1:
the utility model discloses the engine particle catcher regeneration system that embodiment 1 provided, understand with reference to fig. 1, including the regenerating unit body, the regenerating unit body includes filtering channel 1, particulate matter catcher 2 used for filtering the soot particles in the exhaust tail gas of train engine, blowback device 3 used for providing the high-pressure air and filter 4 used for collecting the soot particles that blowback device 3 blew off; the particulate matter catcher 2 is arranged in the filtering channel 1; the particulate matter catcher 2 is provided with a differential pressure sensor 21, and the differential pressure sensor 21 is used for monitoring the pressure difference value in the filtering channels 1 at the two sides of the particulate matter catcher 2; the air outlet of the back flushing device 3 faces the air outlet of the particulate matter catcher 2; a first valve 11 capable of cutting off the filtering channel 1 is arranged at the air inlet of the filtering channel 1; the mouth of the filter 4 is arranged between the first valve 11 and the inlet of the particle trap 2.
Because the start-up process of train often can produce a large amount of soot particles with the acceleration in-process, if direct discharge engine exhaust from exhaust duct this moment, very easily lead to the blast pipe to block up and follow, consequently need set up particulate matter trap 2 and carry out filtration treatment to engine exhaust, but along with the long-term work of train engine, particulate matter trap 2 uses for a long time, and the soot particles that particulate matter trap 2 inside was catched increase gradually, lead to waste gas exhaust resistance to rise, and the oil consumption and the power of engine receive the increase of exhaust back pressure and influence. When the pipeline pressure differential of 2 both sides of particulate matter trap reached a definite value, waste gas just was difficult to discharge, had greatly restricted the dynamic nature and the fuel economy of engine, need carry out the clean reduction work of soot granule to particulate matter trap 2 inside this moment, will gather the soot granule in particulate matter trap 2 inside and get rid of, realize particulate matter trap 2's regeneration. In the conventional regeneration treatment mode, taking the diesel particulate filter 4(DPF) as an example, a mode of heating to promote the soot particles in the diesel particulate filter 4 to be combusted again is generally adopted, but the condition that the regeneration of the diesel particulate filter 4 is not uniform due to nonuniform heating and the diesel particulate filter 4 is damaged due to local overheating can occur by using the mode, and the heating regeneration mode has high requirement on temperature control and complex operation, and is not beneficial to wide adoption. Therefore, the embodiment 1 of the present invention provides an engine particle catcher regeneration system, which comprises a particle catcher 2 and a blowback device 3, wherein the particle catcher 2 includes but is not limited to a diesel particle filter 4, a Particle Oxidation Catalyst (POC), a metal felt, etc. to filter soot particles on one side. When the soot particles in the particulate trap 2 are accumulated to a certain degree and the differential pressure sensor 21 monitors that the differential pressure of the pipelines at the two sides of the particulate trap 2 reaches a certain preset value, closing the first valve 11 to make the tail gas no longer pass through the branch pipe where the particulate matter catcher 2 is located, opening the back-blowing device 3, closing the first valve 11, the blowback device 3 is opened, the air pressure blown out by the blowback device 3 can reach 8-10 atmospheric pressures, which is enough to blow out the soot particles in the particulate matter catcher 2, the high-pressure air blown out by the blowback device 3 is discharged from the pores of the filter 4, meanwhile, the blown soot particles are remained in the filter 4, when the differential pressure sensor 21 detects that the differential pressure of the filtering channels 1 at the two sides of the particulate trap 2 reaches the preset standard range, after the regeneration of the particle catcher 2 is completed, the blowback device 3 is closed, and whether the first valve 11 is opened or not is determined according to whether the particle catcher 2 needs to be used next. The embodiment 1 provides an engine particle trap regeneration system carries out particulate matter trap 2's regeneration treatment through blowback device 3, need not to heat, it is inhomogeneous to have avoided heating to cause particulate matter trap 2 regeneration, particulate matter trap 2 is easy local overheat and the problem of damage, use wind-force clean energy, the energy saving can not cause secondary pollution, and need not to the accurate accuse of parameter, and easy operation has improved train engine's dynamic behavior and fuel economy, can extensively use in engine technical field. In addition, the filter 4 can recover the soot particles after filtering the soot particles for secondary use, thereby further saving certain resources.
Preferably, referring to fig. 1, in the regeneration system of the engine particle catcher according to embodiment 1 of the present invention, the back-blowing device 3 includes a high-pressure air nozzle 31; the high-pressure air nozzle 31 is communicated with an external high-pressure air source; the air outlet of the high-pressure air nozzle 31 faces the air outlet of the particulate matter catcher 2; the high-pressure air sprayed out by the high-pressure air spray nozzle 31 is in a divergent shape and can cover the air outlet of the particulate matter catcher 2.
The embodiment 1 provides an engine particle trap regeneration system passes through the outside high-pressure air source of high-pressure line intercommunication through high-pressure air shower nozzle 31, carry out the blowback to particulate matter trap 2, high-pressure air shower nozzle 31's spun highly-compressed air is the export that the form can cover particulate matter trap 2 of dispersing, realize comprehensive blowback processing work, can avoid 3 gas outlets of blowback device to influence its normal exhaust function of place pipeline too greatly like this, also can avoid 3 gas outlets of blowback device too little, can only carry out the blowback to particulate matter trap 2's a point under the condition of penetrating directly, it needs to explain, the orifice diameter in high-pressure air shower nozzle 31 is far less than the common diameter of charcoal cigarette granule, consequently must not worry remaining charcoal cigarette granule when normally exhausting and blockked up the orifice of high-pressure air shower nozzle 31.
The embodiment 1 of the present invention provides an engine particulate trap regeneration system, preferably, referring to fig. 1, the filter 4 is a bag filter 4. The cloth bag filter 4 has the advantages of low cost and convenient disassembly and replacement.
Preferably, referring to fig. 1, in the engine particulate trap regeneration system according to embodiment 1 of the present invention, a second valve 41 capable of cutting off the cloth filter 4 and the filtering channel 1 is disposed on the cloth filter 4.
In order to avoid opening the first valve 11, the exhaust gas will lift up soot particles collected in the cloth filter 4 when the exhaust gas is subjected to the soot particle trapping process through the filter channel 1, and therefore the second valve 41 is provided on the cloth filter 4, and the second valve 41 is normally closed, and is normally opened only when the particulate matter trap 2 needs to be subjected to the regeneration process.
Further, the engine particle trap regeneration system provided by the embodiment 1 of the present invention, referring to fig. 1, the external high-pressure air source is an air compressor provided by the train itself; a third valve 32 capable of isolating the air compressor from the high-pressure air nozzle 31 is provided between the air compressor and the high-pressure air nozzle 31.
The air compressor of the train is used as a high-pressure air source, namely, no extra device is needed, so that the space is saved, the energy needed by compressed air can be further saved, and certain space cost and economic cost can be saved. Because the air compressor on the train is in a working state for a long time, a third valve 32 needs to be arranged on a connecting pipeline between the high-pressure air nozzle 31 and the air compressor, when the particulate matter catcher 2 does not need regeneration treatment, the third valve 32 is in a closed state to block the high-pressure pipeline between the air compressor and the high-pressure air nozzle 31, when the particulate matter catcher 2 needs regeneration treatment, the third valve 32 is opened to communicate the high-pressure air nozzle 31 and the air compressor, so that the high-pressure air is sprayed out in a divergent mode from the high-pressure air nozzle 31 to carry out regeneration treatment on the particulate matter catcher 2.
Preferably, referring to fig. 1, in the system for regenerating a particulate trap of an engine according to embodiment 1 of the present invention, the first valve 11, the second valve 41, the third valve 32, and the differential pressure sensor 21 are all electrically connected to a controller.
The controller is respectively electrically connected with the first valve 11, the second valve 41, the third valve 32 and the differential pressure sensor 21, when the differential pressure sensor 21 monitors that the differential pressure of the filtering channels 1 on the two sides of the particulate matter catcher 2 reaches a certain preset value, information is transmitted to the controller in the train, the controller controls the first valve 11 to be closed, the second valve 41 and the third valve 32 to be opened, high-pressure air in the air compressor is sprayed out from the high-pressure air spray nozzle 31, the particulate matter catcher 2 is subjected to regeneration treatment, after the treatment is completed, the differential pressure sensor 21 monitors that the differential pressure of the filtering channels 1 on the two sides of the particulate matter catcher 2 reaches a preset standard range, the second valve 41 and the third valve 32 are closed, and the first valve 11 is opened. The automatic control of the regeneration system of the engine particle trap is realized through the controller, a valve in a manual control system is not needed, the operation is simple, and the working efficiency can be improved.
The embodiment 1 of the present invention provides a regeneration system of a particulate filter of an engine, preferably, the particulate filter 2 is a diesel particulate filter 4 or a particulate oxidation catalyst or a metal felt.
Preferably, referring to fig. 1, in the engine particulate trap regeneration system according to embodiment 1 of the present invention, the channel between the first valve 11 and the bag filter 4 is recessed from the first valve 11 toward the bag filter 4; the channel between the bag filter 4 and the air inlet of the particle catcher 2 is recessed from the air inlet of the particle catcher 2 to the bag filter 4.
Through such setting, a recess is formed above the cloth bag filter 4, and when the back flushing device 3 carries out back flushing regeneration treatment, soot particles can enter the cloth bag filter 4 along the recess completely due to the structure of the recess, and cannot remain in the pipeline.
The regeneration system of the engine particle trap provided in embodiment 1 of the present invention preferably, referring to fig. 1, further includes an air inlet channel 5 and an air outlet channel 6; the air inlet channel 5 is communicated with an air inlet of the regeneration device body; the air outlet channel 6 is communicated with an air outlet of the regeneration device body.
The preferred embodiments of the present invention have been described; it is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; the skilled person in the art, without affecting the essence of the invention, may make numerous possible variations and modifications, or may modify equivalent embodiments, without departing from the technical solution of the invention; therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (9)
1. A kind of engine particle trap regeneration system, including the regenerating unit body, characterized by that, the said regenerating unit body includes filtering the channel, particle trap used for filtering the soot particle in the exhaust gas of the train engine, back flushing device used for providing the high-pressure air and filter used for collecting the soot particle blown out of the said back flushing device; the particulate matter catcher is arranged in the filtering channel; the particulate trap is provided with a differential pressure sensor, and the differential pressure sensor is used for monitoring the pressure difference value in the filtering channels at two sides of the particulate trap; the air outlet of the back flushing device faces the air outlet of the particulate matter catcher; a first valve capable of cutting off the filtering channel is arranged at the air inlet of the filtering channel; the mouth of the filter is disposed between the first valve and the particulate trap inlet.
2. The engine particulate trap regeneration system of claim 1, wherein the blowback device comprises a high pressure air jet; the high-pressure air spray head is communicated with an external high-pressure air source; the air outlet of the high-pressure air spray head faces the air outlet of the particulate matter catcher; the high-pressure air sprayed out of the high-pressure air spray head is in a divergent shape and can cover the air outlet of the particulate matter catcher.
3. The engine particulate trap regeneration system of claim 1, wherein the filter is a bag filter.
4. The engine particulate trap regeneration system of claim 3, wherein said bag filter is provided with a second valve capable of isolating said bag filter from said filter passage.
5. The engine particulate trap regeneration system of claim 4, wherein the external source of high pressure air is an air compressor onboard the train; and a third valve capable of isolating the air compressor from the high-pressure air sprayer is arranged between the air compressor and the high-pressure air sprayer.
6. The engine particulate trap regeneration system of claim 5, wherein the first valve, the second valve, the third valve, and the differential pressure sensor are electrically connected to a controller.
7. The engine particulate trap regeneration system of claim 1, wherein the particulate trap is a diesel particulate filter or a particulate oxidation catalyst or a metal mat.
8. The engine particulate trap regeneration system of claim 5, wherein a passage between the first valve and the cloth filter is recessed from the first valve toward the cloth filter; and a channel between the cloth bag filter and the air inlet of the particulate matter catcher is sunken from the air inlet of the particulate matter catcher to the cloth bag filter.
9. The engine particulate trap regeneration system of claim 1, further comprising an inlet channel and an outlet channel; the air inlet channel is communicated with an air inlet of the regeneration device body; the air outlet channel is communicated with an air outlet of the regeneration device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120150342.7U CN214887300U (en) | 2021-01-19 | 2021-01-19 | Engine particle catcher regeneration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120150342.7U CN214887300U (en) | 2021-01-19 | 2021-01-19 | Engine particle catcher regeneration system |
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| CN214887300U true CN214887300U (en) | 2021-11-26 |
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| CN202120150342.7U Active CN214887300U (en) | 2021-01-19 | 2021-01-19 | Engine particle catcher regeneration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324687A (en) * | 2022-09-02 | 2022-11-11 | 浙江吉利控股集团有限公司 | Particle catcher and automobile aftertreatment system |
| CN115726864A (en) * | 2022-10-18 | 2023-03-03 | 黄山天之都环境科技发展有限公司 | Detachable diesel exhaust purification treatment CDPF regenerating unit |
-
2021
- 2021-01-19 CN CN202120150342.7U patent/CN214887300U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324687A (en) * | 2022-09-02 | 2022-11-11 | 浙江吉利控股集团有限公司 | Particle catcher and automobile aftertreatment system |
| CN115726864A (en) * | 2022-10-18 | 2023-03-03 | 黄山天之都环境科技发展有限公司 | Detachable diesel exhaust purification treatment CDPF regenerating unit |
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