CN219622763U - Novel diesel vehicle SCR purifier - Google Patents
Novel diesel vehicle SCR purifier Download PDFInfo
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- CN219622763U CN219622763U CN202320347767.6U CN202320347767U CN219622763U CN 219622763 U CN219622763 U CN 219622763U CN 202320347767 U CN202320347767 U CN 202320347767U CN 219622763 U CN219622763 U CN 219622763U
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- air inlet
- purifier
- diesel vehicle
- urea injection
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- 239000004202 carbamide Substances 0.000 claims abstract description 59
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 58
- 238000002347 injection Methods 0.000 claims abstract description 45
- 239000007924 injection Substances 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 230000003197 catalytic effect Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 38
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000006722 reduction reaction Methods 0.000 abstract description 19
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 9
- 239000007921 spray Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 5
- 239000010977 jade Substances 0.000 abstract description 4
- 239000002283 diesel fuel Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 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 2
- 238000001035 drying Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002808 molecular sieve Substances 0.000 description 2
- WWHFPJVBJUJTEA-UHFFFAOYSA-N n'-[3-chloro-4,5-bis(prop-2-ynoxy)phenyl]-n-methoxymethanimidamide Chemical compound CONC=NC1=CC(Cl)=C(OCC#C)C(OCC#C)=C1 WWHFPJVBJUJTEA-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model belongs to the technical field of diesel oil purification, and particularly relates to a novel diesel vehicle SCR purifier. The utility model comprises a cylinder body, wherein an air inlet pipe and an air outlet pipe are arranged on the cylinder body, and one end of the cylinder body is connected with the air inlet pipe. In the use process, gas enters the urea injection part through the gas inlet pipe, harmful gas and the urea injection part spray high-pressure urea to spray auspicious jade, the urea injection part promotes the mixing of a reducing agent and the harmful gas to accelerate the reduction reaction, the reducing agent and the harmful gas enter the cylinder body, the gas is subjected to oxidation and reduction reaction through the multiple catalytic capturing component, the harmful gas CO, SOF, THC is oxidized into CO2 and H2O, NOx is reduced into N2 under the action of the reducing agent, carbon particles are captured, the redundant ammonia gas is oxidized into N2, and finally the treated clean exhaust enters the atmosphere after noise reduction through the muffler, so that the system structure is simplified, the production cost is reduced, the enterprise competitiveness is improved, the resource waste is reduced, and the sustainable development is realized.
Description
Technical Field
The utility model belongs to the technical field of diesel oil purifiers, and relates to a novel diesel vehicle SCR purifier.
Background
The existing diesel vehicle exhaust emission control system has the technical scheme that: DOC+CDPF+SCR+AOC, wherein 1, DOC carrier reduces harmful CO, THC, SOF pollutant in the tail gas through the catalyst oxidation reaction; 2. the CDPF particle catcher realizes the functions of capturing carbon particles in tail gas and passively regenerating a catalyst through a wall flow effect, and the catalyst realizes N2 of a NOx reduction vehicle, 4 and an AOC catalyst to oxidize the N2 for preventing excessive ammonia from escaping under the action of reducing agent urea. The existing diesel oil purifier has a complex structure, cannot realize the light-weight requirement, has high production cost and easily causes resource waste.
In order to overcome the defects of the prior art, people have continuously explored and put forward various solutions, such as the China patent discloses a heavy-duty diesel vehicle purifier [ application number: 202010233564.5, including the equipment shell, be provided with the drive chamber between the equipment shell, the equipment shell passes through the drive chamber split is filter chamber and stirring chamber, be provided with filtration permeation mechanism in the filter chamber, be provided with rabbling mechanism in the stirring chamber. However, the structure of the scheme is still complex, the light-weight requirement cannot be realized, and the defects of high production cost and easiness in resource waste are overcome.
Disclosure of Invention
The utility model aims to solve the problems and provides a novel diesel vehicle SCR purifier.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a novel diesel vehicle SCR clarifier, includes the barrel, the barrel on be equipped with intake pipe and outlet duct, barrel one end link to each other with the intake pipe, the other end links to each other with the outlet duct, the intake pipe on be equipped with air inlet mounting and urea and spray the piece, urea spray the position of piece and barrel corresponding, the barrel in be equipped with multiple catalysis and catch the subassembly, the outlet duct on be equipped with the sensing piece.
In the novel diesel vehicle SCR purifier, the multiple catalysis capturing component comprises a high-density particle catcher and an AOC carrier, wherein the high-density particle catcher and the AOC carrier are arranged in the cylinder body, the high-density particle catcher is connected with the air inlet pipe, and the AOC carrier is connected with the air outlet pipe.
In the novel diesel vehicle SCR purifier, the high-density particle catcher is internally coated with the four-effect active coating, and the cylinder is made of stainless steel plate materials.
In the novel diesel vehicle SCR purifier, the AOC carrier is internally provided with the high-activity DOC oxidation coating, and a depressurization cavity is formed between the high-density particle catcher and the AOC carrier.
In the novel diesel vehicle SCR purifier, the air inlet fixing piece comprises an air inlet fixing support arranged on the air inlet pipe, and the air inlet pipe is provided with the quick connection connecting piece.
In the novel diesel vehicle SCR purifier, the quick connector comprises a quick connector arranged on the air inlet pipe, and the quick connector is located at a port of one end of the air inlet pipe far away from the cylinder.
In the novel diesel vehicle SCR purifier, the urea injection part comprises a urea injection pipe arranged on the air inlet pipe, and a gas mixer is arranged in the urea injection pipe.
In the novel diesel vehicle SCR purifier, the urea injection pipe is provided with the urea nozzle fixing seat, and the outer wall of the urea injection pipe is provided with the pipe body fixing seat.
In the novel diesel vehicle SCR purifier, the sensing piece comprises a temperature sensor and a nitrogen oxide sensor which are arranged on the air outlet pipe.
In the novel diesel vehicle SCR purifier, the air outlet pipe is further provided with an oxygen sensor nut, and the air outlet pipe is made of stainless steel plate materials.
Compared with the prior art, the utility model has the advantages that:
in the use process, the air inlet pipe and the air inlet fixing piece for the engine exhaust manifold are used, in order to prevent thermal vibration fatigue damage, the air inlet pipe is provided with the flexible corrugated pipe, the air inlet fixing piece is used for fixing the heat shield, the urea injection piece is connected with the air inlet pipe through a welding process, gas enters the urea injection piece through the air inlet pipe, harmful gas and high-pressure urea spray auspicious jade are sprayed out of the urea injection piece, the urea injection piece promotes the mixing of a reducing agent and harmful gas, the reduction reaction is accelerated, the mixture enters the cylinder, the mixture is subjected to oxidation and reduction reaction through the multi-catalytic capturing component, the harmful gas CO, SOF, THC is oxidized into CO2 and H2O, NOx is reduced into N2 under the action of the reducing agent, carbon particles are captured, redundant ammonia is oxidized into N2 gas, and finally the treated clean exhaust enters the atmosphere after noise reduction through the muffler, so that the system structure is simplified, the production cost is lowered, the enterprise competitiveness is improved, the resource waste is reduced, and sustainable development is realized.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of another aspect of the present utility model.
Fig. 3 is a partial structural schematic of the present utility model.
FIG. 4 is a schematic diagram of the structure of a urea injection tube.
In the figure: barrel 1, intake pipe 2, outlet duct 3, inlet mounting 4, urea injection part 5, multiple catalysis catching assembly 6, sensing part 7, high density particle catcher 8, AOC carrier 9, step down cavity 10, inlet fixed bolster 11, quick connect connector 12, quick connect connector 13, urea injection pipe 14, urea nozzle fixing base 15, body fixing base 16, temperature sensor 17, nitrogen oxide sensor 18.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a novel diesel vehicle SCR purifier comprises a barrel 1, barrel 1 on be equipped with intake pipe 2 and outlet duct 3, barrel 1 one end link to each other with intake pipe 2, the other end links to each other with outlet duct 3, intake pipe 2 on be equipped with intake fixing piece 4 and urea injection piece 5, urea injection piece 5 and barrel 1's position correspond, barrel 1 in be equipped with multiple catalysis and catch subassembly 6, outlet duct 3 on be equipped with sensing piece 7.
In this embodiment, in the use process, the air inlet pipe 2 and the air inlet fixing piece 4 for the exhaust manifold of the engine are used, in order to prevent thermal vibration fatigue damage, the air inlet pipe 2 is designed with a flexible corrugated pipe, the air inlet fixing piece 4 is used for fixing a heat shield, the urea injection piece 5 is connected with the air inlet pipe 2 through a welding process, air enters the urea injection piece 5 through the air inlet pipe 2, harmful gas and the urea injection piece 5 spray high-pressure urea spray auspicious jade, the urea injection piece 5 promotes the mixture of reducing agent and harmful gas, accelerates the reduction reaction, and then enters the cylinder 1, the multiple catalytic capturing component 6 is used for carrying out oxidation and reduction reaction on the gas, oxidizing the harmful gas CO, SOF, THC into CO2 and H2O, reducing NOx into N2 under the action of the reducing agent, capturing carbon particles, and redundant ammonia is oxidized into N2 gas, and finally the treated clean exhaust enters the atmosphere after noise reduction of the muffler, so that the system structure is simplified, the production cost is reduced, the enterprise competitiveness is improved, the resource waste is reduced, and sustainable development is realized.
Referring to fig. 1-4, the multiple catalytic capturing component 6 comprises a high-density particle catcher 8 and an AOC carrier 9, wherein the high-density particle catcher 8 is arranged in the cylinder 1, the high-density particle catcher 8 is connected with the air inlet pipe 2, and the AOC carrier 9 is connected with the air outlet pipe 3.
Specifically, the passing gas is subjected to carbon particle capturing by the high-density particle catcher 8, the AOC carrier 9 is a high-density ceramic or metal honeycomb carrier, the inner wall of the pore canal is coated with a high-activity DOC oxidation coating, and the AOC carrier is preferably 400-600 Cpsi, a thin-wall metal or ceramic honeycomb for preventing excessive ammonia from escaping into the atmosphere.
The high-density particle catcher 8 is internally coated with a four-effect active coating, and the cylinder body 1 is made of stainless steel plate materials.
In this embodiment, when the tail gas passes through, oxidation, reduction reaction and particulate matter capturing function can be performed simultaneously, more than 99% of harmful CO, THC, NOx, SOF, PM pollutants can be removed, the high-density particulate trap 8 is the DSCR carrier 10, and is one of cordierite or SIC, the four-effect active coating comprises one or more of molecular sieve, titanium dioxide, rare earth oxide, base metal and trace noble metal, the noble metal is one or more of Pt or Pd, the four-effect active material is prepared into slurry through hydrothermal method, ion exchange or impregnation, and is loaded on the inner wall of a DSCR carrier pore canal, and the catalyst is formed by drying and calcining, wherein the performance completely replaces the single DOC oxidation and SCR reduction wash coating in the prior art, and when the internal carbon particulate matters are captured to a certain amount, the catalyst can burn at low temperature, thereby realizing the passive regeneration function.
The AOC carrier 9 is internally provided with a high-activity DOC oxidation coating, and a depressurization cavity 10 is formed between the high-density particle catcher 8 and the AOC carrier 9.
In this embodiment, the purpose of the high-activity DOC oxidation coating is to prevent excess ammonia from escaping into the atmosphere, and a depressurization cavity 10 is formed between the high-density particle catcher 8 and the AOC carrier 9, so that the exhaust back pressure of the catalytic converter can be reduced, and the preferable distance is 40-70 mm.
Referring to fig. 1, the air inlet fixing part 4 includes an air inlet fixing bracket 11 disposed on the air inlet pipe 2, and the air inlet pipe 2 is provided with a quick connection connecting part 12.
In this embodiment, the air inlet fixing bracket 11 is used for fixing the heat shield, and the air inlet pipe 2 is connected with the engine exhaust manifold through the quick connection connecting piece 12 by using a clamp, so that the fixing effect is better.
The quick connector 12 comprises a quick connector 13 arranged on the air inlet pipe 2, and the quick connector 13 is positioned at a port of one end of the air inlet pipe 2 far away from the cylinder body 1.
In this embodiment, the quick connector 13 is connected to the engine exhaust manifold through the quick connector 12 by a clip, so that the fixing effect is good.
The urea injection part 5 comprises a urea injection pipe 14 arranged on the air inlet pipe 2, and a gas mixer is arranged in the urea injection pipe 14.
In this embodiment, the gas enters the urea injection pipe 14, the mixture of the reducing agent and the harmful gas is promoted by the gas mixer, the reduction reaction is accelerated, the gas mixer is fixed inside the cylinder of the urea injection pipe 14 by welding, and the gas mixer is one of a stainless steel hinge or a metal honeycomb carrier.
Referring to fig. 1, the urea injection pipe 14 is provided with a urea nozzle fixing seat 15, and the outer wall of the urea injection pipe 14 is provided with a pipe body fixing seat 16.
In this embodiment, one end of the urea injection pipe 14 is plugged by an end cover, the urea nozzle fixing seat 15 is fixed on the end cover by welding, and the pipe body fixing seat 16 is hoisted on the vehicle chassis through a rubber hanging lug.
As shown in fig. 1 and 2, the sensor 7 includes a temperature sensor 17 and a nitrogen oxide sensor 18 disposed on the outlet pipe 3.
In the present embodiment, the temperature sensor 17 is used to detect the exhaust gas temperature, and the nox sensor 18 is used to detect the air-fuel ratio.
The air outlet pipe 3 is also provided with an oxygen sensor nut, and the air outlet pipe 3 is made of stainless steel plate materials.
In this embodiment, the oxygen sensor nut is used for detecting the NOx value, and outlet duct 3 is made of stainless steel plate material, and outlet duct 3 is made by bending stainless steel pipe through the bending machine, and the end of giving vent to anger of outlet duct 3 links to each other with muffler inlet tube clamp.
The working principle of the utility model is as follows:
in the use process, the air inlet pipe 2 and the air inlet fixing piece 4 for the engine exhaust manifold are used, in order to prevent thermal vibration fatigue damage, the air inlet pipe 2 is designed with a flexible corrugated pipe, the air inlet fixing piece 4 is used for fixing a heat shield, the urea injection piece 5 is connected with the air inlet pipe 2 through a welding process, gas enters the urea injection piece 5 through the air inlet pipe 2, harmful gas and the urea injection piece 5 spray high-pressure urea spray auspicious jade, the urea injection piece 5 promotes the mixing of reducing agent and harmful gas, accelerates the reduction reaction, enters the cylinder body 1, carries out oxidation and reduction reaction on the gas through the multiple catalytic capturing component 6, oxidizes the harmful gas CO, SOF, THC into CO2 and H2O, reduces NOx into N2 under the action of the reducing agent, captures carbon particles, oxidizes redundant ammonia into N2 gas, finally the treated clean exhaust gas enters the atmosphere after noise reduction through the muffler, simplifies the system structure, reduces the production cost, improves the enterprise competitiveness, reduces the resource waste, realizes sustainable development,
the passing gas is subjected to carbon particle capturing through a high-density particle catcher 8, an AOC carrier 9 is a high-density ceramic or metal honeycomb carrier, the inner wall of a pore canal is coated with a high-activity DOC oxidation coating, the AOC carrier is preferably 400-600 Cpsi, a thin-wall metal or ceramic honeycomb,
when the tail gas passes through, oxidation, reduction reaction and particulate matter capturing function can be carried out simultaneously, more than 99% of harmful CO, THC, NOx, SOF, PM pollutants can be removed, the high-density particulate trap 8 is the DSCR carrier 10, and is one of cordierite or SIC, the four-effect active coating comprises one or more of molecular sieve, titanium dioxide, rare earth oxide, base metal and trace noble metal, the noble metal is one or more of Pt or Pd, the four-effect active material is prepared into slurry by hydrothermal method, ion exchange or dipping, is loaded on the inner wall of a DSCR carrier pore canal, and is formed by drying and calcining, the performance completely replaces the single DOC oxidation and SCR reduction wash coating in the traditional technology, when the internal carbon particulate matters are captured to a certain amount, the catalyst can burn at low temperature to realize the passive regeneration function,
the purpose of the high-activity DOC oxidation coating is to prevent excessive ammonia from escaping into the atmosphere, a depressurization cavity 10 is formed between the high-density particle catcher 8 and the AOC carrier 9, the back pressure of the catalytic package exhaust can be reduced, the preferable distance is 40-70 mm,
the air inlet fixing bracket 11 is used for fixing the heat shield, the air inlet pipe 2 is connected with the engine exhaust manifold through the quick connecting piece 12 by a clamp, the fixing effect is good,
the quick connector 13 is connected with the engine exhaust manifold through the quick connector 12 by a clamp, the fixing effect is better,
the gas enters the urea injection tube 14, the mixture of the reducing agent and the harmful gas is promoted by a gas mixer, the reduction reaction is accelerated, the gas mixer is fixed in the urea injection tube 14 by welding, the gas mixer is one of a stainless steel hinge or a metal honeycomb carrier,
one end of the urea injection pipe 14 is plugged by an end cover, a urea nozzle fixing seat 15 is fixed on the end cover by welding, a pipe body fixing seat 16 is hung on the chassis of the vehicle through a rubber hanging lug,
the temperature sensor 17 is used to detect the exhaust gas temperature, the nitrogen oxide sensor 18 is used to detect the air-fuel ratio,
the oxygen sensor nut is used for detecting the NOx value, the air outlet pipe 3 is made of stainless steel plate materials, the air outlet pipe 3 is formed by bending a stainless steel pipe through a pipe bending machine, and the air outlet end of the air outlet pipe 3 is connected with a clamping hoop for the muffler air inlet pipe.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.
Although the terms of cylinder 1, inlet pipe 2, outlet pipe 3, inlet mount 4, urea injection 5, multiple catalytic capture assembly 6, sensing element 7, high density particle trap 8, AOC carrier 9, depressurization cavity 10, inlet mount 11, quick connect connector 12, quick connect fitting 13, urea injection pipe 14, urea nozzle mount 15, pipe mount 16, temperature sensor 17, nitrogen oxide sensor 18 are used more herein, the possibility of using other terms is not precluded. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides a novel diesel vehicle SCR clarifier, includes barrel (1), its characterized in that, barrel (1) on be equipped with intake pipe (2) and outlet duct (3), barrel (1) one end link to each other with intake pipe (2), the other end links to each other with outlet duct (3), intake pipe (2) on be equipped with air inlet mounting (4) and urea injection piece (5), urea injection piece (5) correspond with the position of barrel (1), barrel (1) in be equipped with multiple catalysis and catch subassembly (6), outlet duct (3) on be equipped with sensing piece (7).
2. The novel diesel vehicle SCR purifier as recited in claim 1, wherein the multiple catalytic capturing component (6) comprises a high-density particle catcher (8) and an AOC carrier (9) which are arranged in the cylinder body (1), the high-density particle catcher (8) is connected with the air inlet pipe (2), and the AOC carrier (9) is connected with the air outlet pipe (3).
3. The novel diesel vehicle SCR purifier as recited in claim 2, wherein the high-density particle catcher (8) is internally coated with a four-effect active coating, and the cylinder (1) is made of stainless steel plate materials.
4. The novel diesel vehicle SCR purifier as recited in claim 3, wherein a high-activity DOC oxidation coating is arranged in the AOC carrier (9), and a depressurization cavity (10) is formed between the high-density particle catcher (8) and the AOC carrier (9).
5. The novel diesel vehicle SCR purifier as recited in claim 4, wherein the air inlet fixing member (4) comprises an air inlet fixing bracket (11) arranged on the air inlet pipe (2), and the air inlet pipe (2) is provided with a quick connection connecting member (12).
6. The novel diesel vehicle SCR purifier as recited in claim 5, wherein the quick connector (12) comprises a quick connector (13) arranged on the air inlet pipe (2), and the quick connector (13) is positioned at a port of one end of the air inlet pipe (2) far away from the cylinder (1).
7. The novel diesel vehicle SCR purifier as recited in claim 6, wherein the urea injection member (5) comprises a urea injection pipe (14) arranged on the air inlet pipe (2), and a gas mixer is arranged in the urea injection pipe (14).
8. The novel diesel vehicle SCR purifier as recited in claim 7, wherein the urea injection pipe (14) is provided with a urea nozzle fixing seat (15), and the outer wall of the urea injection pipe (14) is provided with a pipe body fixing seat (16).
9. The novel diesel vehicle SCR purifier as defined in claim 8, wherein said sensor member (7) comprises a temperature sensor (17) and a nitrogen oxide sensor (18) provided on the air outlet pipe (3).
10. The novel diesel vehicle SCR purifier as recited in claim 9, wherein the air outlet pipe (3) is further provided with an oxygen sensor nut, and the air outlet pipe (3) is made of stainless steel plate materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320347767.6U CN219622763U (en) | 2023-02-23 | 2023-02-23 | Novel diesel vehicle SCR purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320347767.6U CN219622763U (en) | 2023-02-23 | 2023-02-23 | Novel diesel vehicle SCR purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219622763U true CN219622763U (en) | 2023-09-01 |
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ID=87770969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320347767.6U Active CN219622763U (en) | 2023-02-23 | 2023-02-23 | Novel diesel vehicle SCR purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219622763U (en) |
-
2023
- 2023-02-23 CN CN202320347767.6U patent/CN219622763U/en active Active
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