CN112594034B - DPF regeneration heating device - Google Patents
DPF regeneration heating device Download PDFInfo
- Publication number
- CN112594034B CN112594034B CN202110116138.8A CN202110116138A CN112594034B CN 112594034 B CN112594034 B CN 112594034B CN 202110116138 A CN202110116138 A CN 202110116138A CN 112594034 B CN112594034 B CN 112594034B
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- pipe
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- communicated
- heating chamber
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 66
- 230000008929 regeneration Effects 0.000 title claims abstract description 30
- 238000011069 regeneration method Methods 0.000 title claims abstract description 30
- 238000002485 combustion reaction Methods 0.000 claims abstract description 47
- 239000000446 fuel Substances 0.000 claims abstract description 20
- 238000005192 partition Methods 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 27
- 239000002245 particle Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002816 fuel additive Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
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
- F01N3/025—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 using fuel burner or by adding fuel to exhaust
- F01N3/0253—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 using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
- F01N3/0256—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 using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases the fuel being ignited by electrical means
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
Landscapes
- 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 discloses a DPF regeneration heating device, which comprises a machine body and an ignition combustion device, wherein a heating chamber and a flow dividing chamber are arranged in the machine body, the inlet end of the flow dividing chamber is communicated with an exhaust gas outlet of an internal combustion engine, a first partition plate is arranged between the heating chamber and the flow dividing chamber, the ignition combustion device comprises an ignition rod and an air pipe, the inlet end of the air pipe is communicated with a compressed air pipe and the ignition rod, the outlet end of the air pipe is communicated with the heating chamber, the tail end of the heating chamber is fixedly connected with a second partition plate, the ignition rod is communicated with a fuel pipe, an air inlet pipe is communicated in the heating chamber, an air vent which is communicated with the heating chamber and the flow dividing chamber is arranged in the heating chamber, the inlet end of the heat conducting flow dividing pipe is communicated with the flow dividing chamber, and the outlet end of the heat conducting flow dividing pipe is communicated with an exhaust port. The invention gives a continuous and stable fuel combustion, generates a large amount of heat by the fuel combustion, continuously increases the lifting temperature of the air flow by twice heating, and heats the tail gas of the internal combustion engine to a required specific temperature range, thereby having fast temperature rise, good air flow uniformity and high safety.
Description
Technical Field
The invention relates to the technical field of treatment of tail gas of an internal combustion engine, in particular to a DPF regeneration heating device.
Background
Diesel engines are engines that rely on combustion of diesel to obtain energy release. The fuel for diesel engine is diesel oil, its viscosity is greater than that of gasoline, it is not easy to evaporate, and its self-ignition temp. is lower than that of gasoline. The diesel engine has the advantages of large torque and good economic performance, so the diesel engine is widely applied to large diesel equipment, and is particularly suitable for trucks, such as heavy vehicles, large buses, engineering machinery, ships, generator sets and the like which are mainly matched with high-power high-speed diesel engines.
However, because of high working pressure, the diesel engine requires higher structural strength and rigidity of various related parts, so the diesel engine is heavy and has larger volume, the fuel injection pump and the nozzle of the diesel engine have high manufacturing precision requirements, and the cost is higher. Due to the above characteristics, the prior diesel engine is generally used on large and medium-sized trucks. In addition, diesel engines are heavy, have low power-up indexes (lower rotating speed), have high noise and vibration and have serious emission of soot and Particles (PM), so that the diesel engines are seldom favored by cars. Particularly, the new development of small-sized high-speed diesel engines, a lot of advanced technologies such as electric control direct injection, common rail, turbocharging, intercooling and the like can be applied to the small-sized diesel engines, so that the defects of the original diesel engines are well overcome, and the advantages of the diesel engines in the aspects of energy conservation and CO2 emission are that all heat engines including gasoline engines cannot be replaced, and the diesel engines become green engines.
However, since soot and particulate emissions of diesel vehicles are serious, the applications of diesel vehicles are relatively large
Is limited by the number of (a). The focus of diesel engine emission pollutant control is PM. To reduce diesel particulate emissions to meet emission standards and regulations, an aftertreatment device must be employed in addition to the in-machine clean-up, and a particulate trap (DPF) is one of the most effective and promising aftertreatment technologies currently proposed to control particulate emissions.
The particle trap can reduce the soot generated by the diesel engine by more than 90%. The trapped particulate matter is then removed by regeneration. Regeneration of a filter means that during long-term operation of a DPF, the engine back pressure increases due to a gradual increase of particulate matter in a particulate trap, and engine performance decreases, so that deposited particulate matter is periodically removed to restore the filter performance of the DPF. The regeneration of the particle catcher has two methods, namely active regeneration and passive regeneration, wherein the active regeneration refers to that the temperature in the particle catcher is increased by using external energy so as to burn the particles. When the temperature in the particle trap reaches 550 ℃, the deposited particles will oxidize and burn, and if the temperature is less than 550 ℃, excessive deposits will clog the particle trap, and an external energy source (e.g., an electric heater, a burner, or a change in engine operating conditions) is required to raise the temperature in the DPF to oxidize and burn the particles. Passive regeneration refers to the use of a fuel additive or catalyst to reduce the ignition temperature of the particulates so that the particulates can burn on fire at normal diesel exhaust temperatures. Additives such as cerium, iron, and strontium are added to the fuel in a proportion such that excessive amounts of the additives affect the life of the DOC, but if too little, may result in a delay in regeneration or an increase in regeneration temperature.
However, most of the existing DPF active regeneration devices have the defects of poor air flow uniformity, uncontrollable combustion process, poor air flow uniformity in the combustion chamber, slow temperature rise, low fuel utilization rate and potential safety hazard due to the fact that the speed of an internal combustion engine is constantly changed, so that the air flow of tail gas is constantly changed.
Disclosure of Invention
In order to solve the technical problems, the invention designs a DPF regeneration heating device. The DPF regeneration heating device gives a continuous and stable fuel combustion, generates a large amount of heat through the fuel combustion, continuously increases the lifting temperature of the air flow through twice heating, and heats the tail gas of the internal combustion engine to a required specific temperature interval.
The invention adopts the following technical scheme:
The utility model provides a DPF regeneration heating up device, including organism and ignition burner, be provided with heating chamber and branch flow room in the organism, branch flow room entry end intercommunication internal-combustion engine tail gas export, be provided with baffle one between heating chamber and the branch flow room, ignition burner includes ignition stick and trachea, trachea entry end intercommunication compressed air pipe and ignition stick, exit end intercommunication heating chamber, heating chamber end fixedly connected with baffle two, ignition stick intercommunication gas pipe, the intercommunication has the intake pipe in the heating chamber, be provided with the bleeder vent of intercommunication heating chamber and branch flow room on the baffle one, be provided with the heat conduction shunt tubes in the heating chamber, heat conduction shunt tube entry end intercommunication branch flow room, heat conduction shunt tubes exit end intercommunication has the gas vent.
Preferably, the outlet end of the air pipe is arranged along the diversion chamber and opposite to the heating chamber. When heating, the combustion flame direction is toward the inner direction of heating. The fully combusted gas is discharged from the heating chamber to the diversion chamber and then discharged after reaching the diversion pipe, and the flame is turned for many times at the moment, so that open fire can not occur during discharge, and potential safety hazard does not exist.
Preferably, an auxiliary combustion ring is arranged in the outlet end of the air pipe.
Preferably, the heat conduction shunt tube is a copper shunt tube. The copper shunt tube can conduct secondary heating to the passing gas through heat conduction.
Preferably, the tail end of the air inlet pipe is opposite to the outlet end of the air pipe, the tail end of the air inlet pipe is uniformly provided with a plurality of circles of air inlets.
Preferably, a temperature sensor is arranged in the heating chamber, and the temperature sensor is communicated with the ignition rod through a controller. And after the temperature sensor is used for knowing that the internal temperature reaches a certain temperature, the controller is fed back, and the controller controls the ignition rod to stop electrifying.
Preferably, a split plate which is arranged in a horn mouth shape is fixedly connected between the outlet end of the air pipe and the first partition plate.
Preferably, the air pipe inlet end is fixedly connected with the machine body through a fixing seat, an air channel is arranged in the fixing seat, and the air pipe is communicated with the compressed air pipe and the ignition rod through the fixing seat.
The invention has the advantages that (1) combustion is carried out in a heating chamber, fully combusted gas is discharged from the heating chamber to the split-flow chamber and then discharged to the split-flow pipe, at the moment, flame is turned for many times, open fire does not appear when discharged, no potential safety hazard exists, safety is high, (2) combustion is carried out in the combustion chamber under the condition of oxygen enrichment through compressed air, heat energy conversion rate is high, the heat conduction split-flow pipe can carry out secondary heating on the passed gas through heat conduction, the heat utilization rate is high, loss is small, 3) tail gas temperature lifting points are continuously improved through secondary heating, the whole temperature is higher, air flow is uniformly discharged through the split-flow plate and the split-flow pipe, and air flow uniformity is good.
Drawings
FIG. 1 is a schematic view of a construction of the present invention;
FIG. 2 is a schematic diagram of a structural partition of the present invention;
FIG. 3 is a schematic view of the direction of gas flow when the present invention is in use;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a schematic view of a structure of the present invention at various temperature detection points;
In the figure, 1, an air pipe, 2, a fixed seat, 3, an ignition rod, 4, an air inlet pipe, 5, a first partition board, 6, a temperature sensor, 7, a second partition board, 8, a splitter plate, 9, an auxiliary combustion ring, 10, a heat conduction splitter pipe, 11, a splitter chamber, 12, a heating chamber, 13 and an air vent.
Detailed Description
The technical scheme of the invention is further specifically described by the following specific embodiments with reference to the accompanying drawings:
1-2, a DPF regeneration heating device comprises a machine body and an ignition combustion device, wherein a heating chamber 12 and a diversion chamber 11 are arranged in the machine body, the inlet end of the diversion chamber is communicated with a tail gas outlet of an internal combustion engine, a first partition plate 5 is arranged between the heating chamber and the diversion chamber, the ignition combustion device comprises an ignition rod 3 and a gas pipe 1, the inlet end of the gas pipe is communicated with a compressed air pipe and the ignition rod, the outlet end of the gas pipe is communicated with the heating chamber, the tail end of the heating chamber is fixedly connected with a second partition plate, the ignition rod is communicated with a gas pipe, an air inlet pipe 4 is communicated in the heating chamber, an air vent 13 communicated with the heating chamber and the diversion chamber is arranged on the first partition plate, a heat conduction diversion pipe 10 is arranged in the heating chamber, the inlet end of the heat conduction diversion pipe is communicated with the diversion chamber, and the outlet end of the heat conduction diversion pipe is communicated with an exhaust port.
Tracheal outlet end edge flow division the chamber is disposed opposite the heating chamber. A temperature sensor 6 is arranged in the heating chamber, and a controller is communicated with the temperature sensor and the ignition rod. The heat conduction shunt tube is a copper shunt tube. The tail end of the air inlet pipe is opposite to the outlet end of the air pipe, the tail end of the air inlet pipe is uniformly provided with a plurality of circles of air inlets. An auxiliary combustion ring 9 is arranged in the outlet end of the air pipe. A split plate 8 which is arranged in a horn mouth shape is fixedly connected between the outlet end of the air pipe and the first baffle plate. The air pipe inlet end is fixedly connected with the machine body through a fixing seat 2, an air channel is arranged in the fixing seat, and the air pipe is communicated with the compressed air pipe and the ignition rod through the fixing seat.
As shown in figure 3, the DPF regeneration heating device is divided into a diversion chamber and a heating chamber when in use, wherein the heating chamber is communicated with the diversion chamber through an upper vent hole of a first partition plate and is separated from other parts through a second partition plate.
When the system is not started, the tail gas of the internal combustion engine is split into a plurality of split pipes through the split plates, so that the air flow is uniformly sent out.
When DPF regeneration heating device initiative regeneration starts, compressed air is input from fixing base and intake pipe, and the ignition stick is after the circular telegram for the fuel burns in compressed air, and fuel and gas mixture of burning (fuel insufficient combustion at this moment) are through the trachea, and the propelling movement is gone into the heating chamber, and the gaseous mixture is in the heating chamber, carries out abundant burning with the compressed air of the even reposition of redundant personnel of inlet pipe input through the aperture.
In the process of continuous operation, the auxiliary combustion ring continuously absorbs heat, so that the temperature of the auxiliary combustion ring reaches above the fuel ignition point. After the internal temperature reaches a certain temperature, the ignition rod is stopped from being electrified, at the moment, fuel and compressed air are continuously added, and the mixture of the fuel and the compressed air reaches the combustion ring through the air inlet pipe, so that the fuel is continuously combusted.
In the continuous combustion process in the combustion chamber, heat is conducted into the tail gas of the internal combustion engine flowing continuously through the copper shunt pipe, so that the temperature of the tail gas of the internal combustion engine is raised.
The high-temperature heat flow in the combustion chamber is discharged to the flow dividing chamber (the pressure of the combustion chamber is larger than that of the flow dividing chamber) through the air holes of the first partition plate, the high-temperature heat flow and the tail gas of the internal combustion engine are mixed and heated, when the high-temperature heat flow enters the flow dividing pipe, the fuel in the combustion chamber is combusted, the heat is conducted into the tail gas of the internal combustion engine flowing continuously through the copper flow dividing pipe to be subjected to secondary heating, and finally the heat is discharged.
When the mixed gas is discharged, the gas is heated for the second time, and the temperature can reach the requirement.
Through the shunt tubes densely distributed on the first baffle plate, the gas uniformity is good. The number of the shunt tubes can be 1-100 pieces according to the working condition requirement.
As shown in fig. 4, temperature detection is performed for 9 different ventilation positions on the first partition board for different time periods, and the detection results are as follows:
The invention has the advantages of quick temperature rise, good air flow uniformity and uniform temperature of 9 different ventilation positions, and can quickly heat the tail gas of the internal combustion engine to a required specific temperature range.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (8)
1. The DPF regeneration heating device comprises a machine body and an ignition combustion device, wherein a heating chamber and a flow dividing chamber are arranged in the machine body, the inlet end of the flow dividing chamber is communicated with an exhaust gas outlet of the internal combustion engine, the DPF regeneration heating device is characterized in that a first partition plate is arranged between the heating chamber and the flow dividing chamber, the ignition combustion device comprises an ignition rod and an air pipe, the inlet end of the air pipe is communicated with a compressed air pipe and the ignition rod, the outlet end of the ignition rod is communicated with a gas pipe, the heating chamber is internally communicated with a gas inlet pipe, the first baffle plate is provided with a vent hole for communicating the heating chamber and the shunt chamber, the heating chamber is internally provided with a heat conduction shunt pipe, the inlet end of the heat conduction shunt pipe is communicated with the shunt chamber, and the outlet end of the heat conduction shunt pipe is communicated with an exhaust port;
When the device is started, compressed air is respectively input from an air pipe and an air inlet pipe, after an ignition rod is electrified, fuel is injected into the compressed air, so that the fuel is combusted in the compressed air, the insufficiently combusted fuel and gas mixture is pushed into a heating chamber through the air pipe, the mixed gas is fully combusted with the compressed air input by the air inlet pipe, high-temperature heat flow in the heating chamber is discharged to a diversion chamber through a plurality of air holes of a first partition plate, mixed with the tail gas of the internal combustion engine for heating, and the combustion heat in the heating chamber is simultaneously conducted into the continuously flowing tail gas of the internal combustion engine through the heat conduction diversion pipe for secondary heating.
2. The DPF regeneration warming apparatus according to claim 1, wherein the air pipe outlet end is disposed along the flow dividing chamber opposite to the heating chamber.
3. The DPF regeneration temperature increasing device according to claim 1, wherein an auxiliary combustion ring is provided in the air pipe outlet end.
4. The DPF regeneration temperature increasing device according to claim 1, wherein the heat-conducting shunt tube is a copper shunt tube.
5. The DPF regeneration temperature increasing device according to claim 1, wherein the air inlet pipe end is opposite to the air pipe outlet end, and the air inlet pipe end is uniformly provided with a plurality of circles of air inlet holes.
6. The DPF regeneration temperature increasing device according to claim 3, wherein a temperature sensor is provided in the heating chamber, and the temperature sensor and the ignition rod are connected to a controller.
7. The DPF regeneration temperature increasing device according to claim 1, wherein a split plate provided in a horn shape is fixedly connected between the outlet end of the air pipe and the first partition plate.
8. The DPF regeneration heating device according to claim 1, wherein the air pipe inlet end is fixedly connected with the machine body through a fixing seat, an air channel is arranged in the fixing seat, and the air pipe is communicated with the compressed air pipe and the ignition rod through the fixing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116138.8A CN112594034B (en) | 2021-01-28 | 2021-01-28 | DPF regeneration heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110116138.8A CN112594034B (en) | 2021-01-28 | 2021-01-28 | DPF regeneration heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112594034A CN112594034A (en) | 2021-04-02 |
| CN112594034B true CN112594034B (en) | 2024-12-20 |
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ID=75207602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110116138.8A Active CN112594034B (en) | 2021-01-28 | 2021-01-28 | DPF regeneration heating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN112594034B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975912A (en) * | 2014-04-02 | 2015-10-14 | 清净绿能科技股份有限公司 | Smoke exhaust purification treatment device |
| CN214170648U (en) * | 2021-01-28 | 2021-09-10 | 杭州好牛高新技术有限公司 | DPF regeneration heating device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1238631C (en) * | 2002-11-06 | 2006-01-25 | 北京交通大学 | Device for improving exhaust particle distribution of diesel engine based on temperature effect |
| KR101430061B1 (en) * | 2014-02-21 | 2014-08-26 | 주식회사 이드리븐 | Burner system for smoke and white smoke reducing apparatus using high-pressure excess air by force and smoke and white smoke reducing apparatus of diesel engine having the same |
| CN208347864U (en) * | 2018-04-16 | 2019-01-08 | 艾蓝腾新材料科技(上海)有限公司 | A kind of mixer applied to diesel engine initiative regeneration control system |
-
2021
- 2021-01-28 CN CN202110116138.8A patent/CN112594034B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975912A (en) * | 2014-04-02 | 2015-10-14 | 清净绿能科技股份有限公司 | Smoke exhaust purification treatment device |
| CN214170648U (en) * | 2021-01-28 | 2021-09-10 | 杭州好牛高新技术有限公司 | DPF regeneration heating device |
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| CN112594034A (en) | 2021-04-02 |
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