CN113530641A - DPF carrier carbon deposition cleaning device - Google Patents
DPF carrier carbon deposition cleaning device Download PDFInfo
- Publication number
- CN113530641A CN113530641A CN202110977499.1A CN202110977499A CN113530641A CN 113530641 A CN113530641 A CN 113530641A CN 202110977499 A CN202110977499 A CN 202110977499A CN 113530641 A CN113530641 A CN 113530641A
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- chamber
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- dpf
- carbon deposition
- cleaning device
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 55
- 230000008021 deposition Effects 0.000 title claims abstract description 41
- 238000004140 cleaning Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000005192 partition Methods 0.000 claims abstract description 26
- 238000005485 electric heating Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 6
- 239000004071 soot Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 17
- 239000002245 particle Substances 0.000 description 12
- 239000008187 granular material Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0237—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles for regenerating ex situ
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention provides a DPF carrier carbon deposition cleaning device, and relates to the technical field of post-treatment maintenance of engines. The device for cleaning the carbon deposition on the DPF carrier comprises a box body, a partition plate arranged in the box body, a heating assembly and a directional air supply assembly, wherein the box body is divided into a first cavity and a second cavity by the partition plate, the heating assembly is arranged in the first cavity, the directional air supply assembly is arranged in the second cavity, the box body is provided with a pipeline communicated with the first cavity and the second cavity, and the partition plate is provided with a through hole communicated with the first cavity and the second cavity.
Description
Technical Field
The invention relates to the technical field of post-treatment maintenance of engines, in particular to a DPF (diesel particulate filter) carrier carbon deposition cleaning device.
Background
With the upgrading of the Diesel engine emission technology, the DPF (Diesel Particulate Filter) technology is adopted, most of PM (Particulate matter) such as soot and the like in tail gas can be filtered, the PM emission is effectively reduced, and the requirements of the national six-emission regulation are met. However, with the increase of the running time of the engine, the soot accumulation amount in the DPF is increased, so that the exhaust back pressure is increased, and the dynamic property and the fuel economy of the engine are affected.
In the prior art, a good solution is not provided for the problem of blockage of a DPF carrier after automobile aftertreatment. Generally, the temperature is increased in a furnace, and then hot air is used for blowing out carbon deposition particles in the DPF carrier, and the carbon deposition particles are discharged in the air to easily cause secondary pollution. Therefore, the prior art is in need of improvement.
Disclosure of Invention
The invention aims to provide a DPF (diesel particulate filter) carrier carbon deposition cleaning device, which can provide a corresponding solution for solving the problems in the prior art and has the beneficial effects of good carbon deposition removing effect and concentrated carbon deposition particles.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a DPF carrier carbon deposition cleaning device, including the box with set up baffle, heating element, the directional air supply subassembly in the box, the box is inside to be separated into first cavity and second cavity by the baffle, heating element sets up in first cavity, directional air supply subassembly and first cavity and second cavity intercommunication, the baffle is equipped with the through-hole of the first cavity of intercommunication and second cavity.
In some embodiments of the present invention, the directional air supply assembly includes a first fan and a duct connected to each other, the first fan is in communication with the first chamber, and the duct is in communication with the second chamber.
In some embodiments of the invention, the end of the pipe is provided with a flange.
In some embodiments of the present invention, the second chamber is provided with a limiting component, and the limiting component is connected with the partition plate.
In some embodiments of the present invention, the position limiting assembly includes a surrounding plate, and the surrounding plate is connected with the partition plate.
In some embodiments of the present invention, a second blower is disposed at the top of the second chamber.
In some embodiments of the present invention, the heating assembly includes an electric heating rod, and the electric heating rod is connected with the inner wall of the box body.
In some embodiments of the present invention, the inner walls of the first chamber and the second chamber are both provided with heat insulating layers.
In some embodiments of the present invention, the first chamber is provided with a filter screen, and the filter screen is connected with the inner wall of the box body.
In some embodiments of the invention, the box body is provided with a first box door corresponding to the second chamber, and the box body is provided with a second box door corresponding to the first chamber.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
the embodiment of the invention provides a DPF (diesel particulate filter) carrier carbon deposition cleaning device which mainly comprises a box body, a partition plate, a heating assembly and a directional air supply assembly, wherein the box body provides a closed place for removing carbon deposition of a DPF carrier; the partition board is horizontally arranged in the box body and divides the space in the box body into an upper second chamber and a lower first chamber; the heating assembly is used for heating the air in the first chamber to generate hot air; the directional air supply assembly is used for enabling air in the first cavity to flow in a directional mode into the second cavity, so that hot air flows through the DPF carrier, carbon deposition particles inside the hot air flows can be taken away in the process that the hot air flows through the DPF carrier, and the carbon removal effect is good. The through hole is arranged at the central position of the partition plate, the first cavity is communicated with the second cavity, and gas in the second cavity can enter the first cavity conveniently. Under the effect of directional air supply assembly, gas passes through second cavity, through-hole, first cavity, pipeline in proper order, returns the continuous circulation of second cavity at last, and the DPF carrier is placed in the through-hole position on the baffle, and the carbon deposit granule is taken away to the hot gas flow when passing the DPF carrier, and the carbon deposit granule is concentrated in first cavity. During the use, place the DPF carrier on the baffle, then start heating element and directional air supply subassembly, the temperature of the first cavity of heating element heating, directional air supply subassembly is taken out the air after the heating to the second cavity, the gas of second cavity passes through the DPF carrier, the through-hole gets into first cavity, get into the second cavity again after being heated, so circulation is reciprocal, temperature constantly rises, it is better to get rid of the carbon deposit granule effect, the carbon deposit granule is concentrated in first cavity, the unified collection, direct emission is in the atmosphere not, the subsequent processing of being convenient for, secondary pollution can not be caused. Therefore, the DPF carrier carbon deposition cleaning device provided by the embodiment of the invention has the beneficial effects of good carbon deposition removing effect, concentrated carbon deposition particles and no secondary pollution.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of an internal structure of a DPF carrier carbon deposition cleaning apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a separator according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a first chamber provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of another DPF carrier soot cleaning device according to an embodiment of the present invention.
Icon: 1-box body, 101-first chamber, 102-second chamber, 103-pipeline, 1031-flange plate, 2-partition plate, 201-through hole, 3-heating component, 4-second fan, 5-limiting component, 501-coaming plate, 6-first fan and 7-filter screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that the direction is more horizontal than "vertical" and does not mean that the structure or component must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, "a plurality" represents at least 2.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1 to 4, a DPF carbon soot cleaning device according to an embodiment of the present invention is shown in the following.
As shown in fig. 1, the present application provides a DPF (diesel particulate filter) soot cleaning device, which includes a case 1, a partition plate 2 disposed in the case 1, a heating assembly 3, and a directional air supply assembly, wherein the inside of the case 1 is partitioned into a first chamber 101 and a second chamber 102 by the partition plate 2, the heating assembly 3 is disposed in the first chamber 101, the directional air supply assembly is communicated with the first chamber 101 and the second chamber 102, and the partition plate 2 is provided with a through hole 201 communicating the first chamber 101 and the second chamber 102. Referring to fig. 1, a box body 1 provides a closed place for removing carbon deposition on a DPF carrier; the partition plate 2 is horizontally installed in the box body 1, and divides the space in the box body 1 into an upper second chamber 102 and a lower first chamber 101; the heating assembly 3 is used for heating the air in the first chamber 101 to generate hot air; the directional air supply assembly is used for enabling air in the first cavity 101 to flow into the second cavity 102, the air in the second cavity 102 penetrates through the DPF carrier to enter the first cavity 101, hot air flow can take away carbon deposition particles in the process of penetrating through the DPF carrier, and the carbon removal effect is good.
As shown in fig. 1 and 2, the through hole 201 is formed in the center of the partition plate 2 to communicate the first chamber 101 with the second chamber 102, so that the gas in the second chamber 102 can enter the first chamber 101. Under the action of the directional air supply assembly, air sequentially passes through the second cavity 102, the through holes 201, the first cavity 101 and the pipeline 103, and finally returns to the second cavity 102 to circulate continuously, the DPF carrier is placed at the positions of the through holes 201 on the partition board 2, hot air flow passes through the DPF carrier to take away carbon deposition particles, and the carbon deposition particles are concentrated in the first cavity 101.
During the use, place the DPF carrier on baffle 2, then start heating element 3 and directional air supply assembly, heating element 3 heats the temperature of first cavity 101, directional air supply assembly blows the air to second cavity 102 by first cavity 101, then the gas in second cavity 102 passes through the DPF carrier, through-hole 201 gets into first cavity 101, get into second cavity 102 from directional air supply assembly again after being heated, so circulation is reciprocal, temperature constantly rises, it is better to get rid of the carbon deposit granule effect, the carbon deposit granule is concentrated in first cavity 101, the unified collection, direct emission is in the atmosphere, the subsequent handling of being convenient for, can not cause secondary pollution. Therefore, the DPF carrier carbon deposition cleaning device provided by the embodiment of the invention has the beneficial effects of good carbon deposition removing effect, concentrated carbon deposition particles and no secondary pollution.
In some embodiments of the present invention, the directional air supply assembly comprises a first fan 6 and a duct 103 connected to each other, the first fan 6 being in communication with the first chamber 101, and the duct 103 being in communication with the second chamber 102. As shown in fig. 1, the first fan 6 may be an axial flow fan in the prior art, and is fixedly installed on the outer wall of the box body 1, the pipeline 103 is fixedly installed on the inner wall of the box body 1, the first fan 6 has an air inlet pipe and an air outlet pipe, the air inlet pipe of the first fan 6 extends into the first chamber 101, and the air outlet pipe of the first fan 6 extends into the second chamber 102 to communicate with the pipeline 103. After the first fan 6 works, the gas in the first cavity 101 is continuously axially moved to the second cavity 102, the second cavity 102 automatically enters the first cavity 101 under the action of air pressure, hot air flows through the DPF carrier, carbon deposition is automatically removed, and the using effect is good.
In some embodiments of the invention, as shown in fig. 1, the port of the conduit 103 is provided with a flange 1031. When the device is used, a hose with a flange can be butted with the flange plate 1031, the other end of the hose is inserted into the DPF carrier, hot air flow can be conveniently and directly conveyed to the DPF carrier, the air flow is directionally conveyed, and the carbon deposition removing effect is better.
It should be noted that, as shown in fig. 1, a check valve may be installed in the pipeline 103, and the check valve may be a CPE general check valve in the prior art or a RE low-pressure internal thread check valve in the RE, and the check valve allows only one-way flow of the pipeline 103, and allows only upward flow of the airflow, but prohibits downward flow of the airflow, so that the airflow sequentially passes through the second chamber 102, the through hole 201, the first chamber 101, and the pipeline 103, and finally returns to the second chamber 102 to continuously circulate.
In some embodiments of the present invention, the second chamber 102 is provided with a limiting assembly 5, and the limiting assembly 5 is connected with the partition plate 2. As shown in fig. 1 and 2, a limiting component 5 is mounted on the upper surface of the partition board 2, the limiting component 5 is located in the second chamber 102 and is used for fixing and limiting the DPF carrier, when the DPF carrier is placed on the partition board 2, the limiting component 5 abuts against or clamps the shell of the DPF carrier, the DPF carrier is aligned with the through hole 201, and then the directional air supply component is aligned with the DPF carrier to continuously supply air.
In some embodiments of the present invention, the position limiting assembly 5 comprises a surrounding plate 501, and the surrounding plate 501 is connected with the partition 2. As shown in fig. 2, the position limiting component 5 may alternatively be composed of four enclosing plates 501, and the four enclosing plates 501 are connected end to enclose the through hole 201 of the partition 2. During the use with the DPF carrier put into bounding wall 501 in, bounding wall 501 butt DPF carrier is around, prevented by directional air supply assembly blow off. The height of the coaming 501 is smaller than that of the DPF carrier, so that the coaming is convenient to take and place.
In some embodiments of the present invention, the second fan 4 is disposed on the top of the second chamber 102 as shown in fig. 1, an interlayer is disposed on the top of the second chamber 102, the second fan 4 is fixedly mounted in the interlayer, the interlayer is provided with an opening to communicate with the second chamber 102, and after the second fan 4 works, the second fan can blow the airflow to the second chamber 102. The second fan 4 is used for making the gas in the second chamber 102 turbulent, which is equivalent to a stirring effect, and the gas is uniformly mixed, so that the gas in the second chamber 102 keeps the same temperature.
When the temperature-rising device is used, the first fan 6 works for a period of time, then the second fan 4 works for a period of time, then the first fan 6 works for a period of time, and the circulation is repeated, so that all gas in the second chamber 102 can be rapidly heated.
In some embodiments of the present invention, the heating assembly 3 comprises an electric heating rod, and the electric heating rod is connected with the inner wall of the box body 1. As shown in fig. 1 and fig. 3, the heating component 3 may be an electric heating rod (gas heater) in the prior art, a plurality of (4, 5 in this embodiment) bases of the electric heating rods are fixed on the inner wall of the box 1, the electric heating rods are located in the first chamber 101, and directly heat the air in the first chamber 101 after being powered on, so that the heating speed is high, and the safety is good.
In some embodiments of the present invention, the inner walls of the first chamber 101 and the second chamber 102 are both provided with heat insulating layers. As shown in the combined figure 1, in order to avoid heat loss to the outside, heat insulation layers, such as glass fiber heat insulation plates, can be installed on the inner walls of the first chamber 101 and the second chamber 102, so that a good heat insulation effect is achieved, heat loss is reduced, and energy is saved in the carbon removal process.
In some embodiments of the present invention, the first chamber 101 is provided with a filter 7, and the filter 7 is connected to the inner wall of the box 1. As shown in fig. 4, a filter screen 7 is installed in the first chamber 101, and the filter screen 7 is connected with the inner wall of the box body 1 and located above the heating assembly 3 for blocking most of the carbon deposition particles, so as to facilitate uniform collection and treatment.
In some embodiments of the present invention, the case 1 is provided with a first door corresponding to the second chamber 102, and the case 1 is provided with a second door corresponding to the first chamber 101. As shown in fig. 1, a first door on the box 1 is located at a side of the second chamber 102, and is opened to facilitate taking and placing the DPF carrier; the second door on the box body 1 is positioned on the side surface of the first chamber 101, and carbon deposition particles can be cleaned conveniently after the second door is opened. After carbon deposition is removed, the first box door and the second box door can be opened, so that the directional air supply assembly works, air flow is accelerated, and the effect of rapid cooling can be achieved.
In summary, the embodiment of the present invention provides a DPF (diesel particulate filter) carbon deposition cleaning device, which includes a box 1, a partition plate 2 disposed in the box 1, a heating assembly 3, and a directional air supply assembly, wherein the inside of the box 1 is partitioned into a first chamber 101 and a second chamber 102 by the partition plate 2, the heating assembly 3 is disposed in the first chamber 101, the directional air supply assembly is communicated with the first chamber 101 and the second chamber 102, and the partition plate 2 is provided with a through hole 201 communicating the first chamber 101 and the second chamber 102. For the complete description of the present invention, the directional air supply assembly includes a first fan 6 and a duct 103 connected to each other, the first fan 6 is communicated with the first chamber 101, and the duct 103 is communicated with the second chamber 102, so that the use effect is good. The pipeline 103 is internally provided with a one-way valve, so that the gas flow effect is good. The second chamber 102 is provided with a limiting component 5, and the limiting component 5 is connected with the partition plate 2 to play a role in fixing. Spacing subassembly 5 includes bounding wall 501, and bounding wall 501 is connected with baffle 2, and fixed effect is better, gets to put the convenience. The top of the second chamber 102 is provided with a second fan 4, so that the gas in the second chamber 102 is uniformly stirred. The heating component 3 comprises an electric heating rod, the electric heating rod is connected with the inner wall of the box body 1, the heating speed is high, and the safety is good. The inner walls of the first chamber 101 and the second chamber 102 are both provided with heat insulation layers, so that heat loss is reduced, and energy is saved in the carbon removal process. The first chamber 101 is provided with the filter screen 7, and the filter screen 7 is connected with the inner wall of the box body 1, so that uniform collection and treatment are facilitated. The box body 1 is provided with a first box door corresponding to the second chamber 102, and the box body 1 is provided with a second box door corresponding to the first chamber 101, so that the use is convenient. Therefore, the DPF carrier carbon deposition cleaning device provided by the embodiment of the invention has the advantages of good carbon deposition removing effect, concentrated carbon deposition particles and no secondary pollution, and is suitable for popularization and application.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a DPF carrier carbon deposit cleaning device, its characterized in that, include the box with set up in baffle, heating element, directional air supply subassembly in the box, the box is inside by first cavity and second cavity are separated into to the baffle, heating element set up in first cavity, directional air supply subassembly with first cavity with second cavity intercommunication, the baffle is equipped with the intercommunication first cavity with the through-hole of second cavity.
2. The DPF carrier carbon deposition cleaning device of claim 1, wherein the directional air supply assembly comprises a first fan and a conduit connected to each other, the first fan is in communication with the first chamber, and the conduit is in communication with the second chamber.
3. A DPF carbon soot cleaning device according to claim 2, wherein a flange is provided at a port of the pipe.
4. A DPF carrier carbon deposition cleaning apparatus as claimed in claim 1, wherein the second chamber is provided with a limiting component connected with the partition plate.
5. A DPF carrier carbon deposition cleaning device as recited in claim 4 wherein the limiting assembly comprises a fence plate, the fence plate is connected with the partition plate.
6. A DPF carrier carbon deposition cleaning device according to claim 1, wherein a second fan is provided on the top of the second chamber.
7. A DPF (diesel particulate filter) carbon deposition cleaning device according to claim 1, wherein the heating component comprises an electric heating rod, and the electric heating rod is connected with the inner wall of the box body.
8. The DPF carbon deposition cleaning device of claim 7, wherein the inner walls of the first chamber and the second chamber are provided with heat insulation layers.
9. A DPF carbon deposition cleaning apparatus as set forth in any of claims 1-8, wherein the first chamber is provided with a filter net, the filter net is connected with the inner wall of the casing.
10. The DPF carbon deposit removing device of claim 9, wherein the case is provided with a first case door corresponding to the second chamber, and the case is provided with a second case door corresponding to the first chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977499.1A CN113530641A (en) | 2021-08-24 | 2021-08-24 | DPF carrier carbon deposition cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110977499.1A CN113530641A (en) | 2021-08-24 | 2021-08-24 | DPF carrier carbon deposition cleaning device |
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| CN113530641A true CN113530641A (en) | 2021-10-22 |
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| CN202110977499.1A Pending CN113530641A (en) | 2021-08-24 | 2021-08-24 | DPF carrier carbon deposition cleaning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530642A (en) * | 2021-08-25 | 2021-10-22 | 王廷柱 | DPF carrier carbon deposition cleaning device |
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Application publication date: 20211022 |