CN114542245A - Motor vehicle tail gas degradation treatment equipment - Google Patents
Motor vehicle tail gas degradation treatment equipment Download PDFInfo
- Publication number
- CN114542245A CN114542245A CN202210078017.3A CN202210078017A CN114542245A CN 114542245 A CN114542245 A CN 114542245A CN 202210078017 A CN202210078017 A CN 202210078017A CN 114542245 A CN114542245 A CN 114542245A
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- Prior art keywords
- pipe
- rotating shaft
- tail gas
- motor vehicle
- gear
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- 230000015556 catabolic process Effects 0.000 title claims abstract description 14
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 230000003197 catalytic effect Effects 0.000 claims abstract description 15
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 41
- 239000004202 carbamide Substances 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 36
- 230000001939 inductive effect Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 241000883990 Flabellum Species 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 61
- 230000008859 change Effects 0.000 description 13
- 238000010531 catalytic reduction reaction Methods 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 230000006698 induction Effects 0.000 description 8
- 238000006479 redox reaction Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000014759 maintenance of location 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
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
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- 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
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- 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
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/04—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using kinetic energy
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1486—Means to prevent the substance from freezing
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- 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
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to the technical field of automobile exhaust treatment, in particular to a motor vehicle exhaust degradation treatment device, which comprises an outer pipe and an inner pipe, wherein the inner pipe is connected with a circular pipe connector, the outer pipe is rotatably connected with a first rotating shaft and a second rotating shaft, the first rotating shaft is connected with a rotating fan blade, the rotating fan blade is connected with a heat conducting fin, the first rotating shaft is connected with a first gear, the second rotating shaft is connected with an eccentric disc, the second rotating shaft is connected with a second gear, the second gear is meshed with the first gear, the inner side of the inner pipe is connected with a buffer cylinder, the bottom of the buffer cylinder is connected with a first spring, the free end of the first spring is connected with a pressing plate, the pressing plate is in abutting connection with the two eccentric discs, the inner pipe is connected with a branch pipe, and the inner pipe is connected with a catalytic reactor. The cleaning effect of the tail gas is enhanced.
Description
Technical Field
The invention relates to the technical field of automobile exhaust treatment, in particular to a motor vehicle exhaust degradation treatment device.
Background
At present, with the progress of the times, automobiles become an indispensable part in people's lives, however, although the development of the automobile industry brings huge benefits to human beings, the environment for people to live is polluted, the exhaust generated in the driving process of the automobiles contains harmful gases, so the pollution to the atmosphere is large, particularly in large and medium-sized cities, the automobile ownership is in a straight-line rising trend, the emission of the automobile exhaust causes great harm to the health of urban residents, the automobile exhaust is a main source of air pollution in modern cities, various automobile exhaust treatment devices are operated to solve the problems, the existing exhaust treatment devices mostly adopt a catalyst, the pollution-free gases are generated and discharged through the catalytic reduction reaction of chemical substances and the automobile exhaust, and the automobile urea and the nitrogen oxides are subjected to the oxidation reduction reaction in the catalytic reactor, the generated pollution-free nitrogen and water vapor are discharged, other pollutants such as hydrocarbon, carbon monoxide and the like are also removed through oxidation-reduction reaction, but the catalyst has problems in use, the retention time of tail gas in the catalyst is short, the tail gas is discharged after the oxidation-reduction reaction is not completed, the catalytic effect is poor, the amount of sprayed urea solution is inconvenient to change along with the change of the gas discharge speed, so that the urea is insufficient, nitrogen oxides cannot continue to generate oxidation-reduction reaction, and the pollution gas discharged into the air is increased.
Disclosure of Invention
The invention aims to provide a motor vehicle exhaust degradation treatment device to solve the problems that the existing urea solution is inconvenient to change the spraying amount along with the exhaust rate, the exhaust stays in a catalyst for a short time, and the oxidation-reduction reaction cannot be completely carried out.
In order to achieve the purpose, the invention provides the following technical scheme:
the motor vehicle tail gas degradation treatment equipment comprises an outer pipe and an inner pipe, wherein the inner pipe is connected with a circular pipe interface, the circular pipe interface is in threaded connection with an exhaust pipe, the outer pipe is rotatably connected with a first rotating shaft and a second rotating shaft, the first rotating shaft penetrates through the inner pipe and is connected with rotating fan blades, the rotating fan blades are positioned in the inner pipe, the first rotating shaft is connected with a first gear, the second rotating shaft is connected with two eccentric discs, the second rotating shaft is connected with a second gear, the second gear is meshed with the first gear, the inner side of the inner pipe is connected with a buffer cylinder, the buffer cylinder is communicated with a liquid inlet pipe, the liquid inlet pipe is connected with a first one-way valve, the free end of the liquid inlet pipe penetrates through the outer pipe and is connected with a urea tank, the bottom of the buffer cylinder is connected with a first spring, and the free end of the first spring is connected with a pressing plate, the press plate with the sealed sliding connection of buffer cylinder inside wall, press plate and two eccentric disc is contradicted and is connected, press plate connection has the drain pipe, the drain pipe is connected with the second check valve, the drain pipe is connected with the shower nozzle, the inner tube connection has catalytic reactor.
Preferably, the first rotating shaft is a hollow round pipe, a heat conducting rod is arranged in the hollow part of the first rotating shaft, the center shaft of the heat conducting rod coincides with the center shaft of the first rotating shaft, one end of the heat conducting rod is fixedly connected with the inner side wall of the outer pipe, the rotating fan blades are connected with heat conducting fins, the heat conducting fins are in abutting connection with the heat conducting rod, a heat insulating layer is connected to the outside of the heat conducting rod, and the free end of the heat conducting rod penetrates out of the outer pipe and is inserted into the urea tank.
Preferably, the inner tube is connected with two branch pipes, two the branch pipe is located respectively the inner tube both sides, branch pipe gas outlet direction is opposite with tail gas air current direction, the branch pipe is connected with the electromagnetism check valve, the second pivot is connected with the disc, the disc is opened there is the spout, the spout is connected with the second spring, second spring free end is connected with the striking piece, the spout is kept away from the one end of second spring is connected with inductive switch, inductive switch control opening and closing of electromagnetism check valve.
Preferably, the two eccentric disks are arranged symmetrically with respect to the center of the pressing plate.
Preferably, the inner pipe is located at the right side of the branch pipe, the inner diameter of the inner pipe is enlarged, and the catalytic reactor is located at the inner diameter enlarged section of the inner pipe.
Preferably, the spray head can atomize the sprayed urea liquid.
The working principle and the beneficial effects of the technical scheme are as follows:
the working principle is as follows:
the discharged tail gas impacts the rotating fan blades to drive the rotating fan blades to rotate, the rotating fan blades drive the first rotating shaft to rotate, the first rotating shaft drives the second rotating shaft to rotate, the second rotating shaft drives the two eccentric discs to rotate, the eccentric discs press the pressing plate to enable the pressing plate to move up and down, the pressing plate is in sealing sliding connection with the buffer cylinder, the pressing plate moves downwards, the accommodating space in the buffer cylinder is reduced, the urea liquid stored in the buffer cylinder needs to be discharged, the first one-way valve and the second one-way valve can only transmit media from bottom to top, so the urea liquid can only be discharged through the liquid outlet pipe, the second one-way valve and the spray head and further gasified and fused with the tail gas, the pressing plate moves upwards under the restoring force of the spring, the space in the buffer cylinder is increased, the air pressure is reduced, the medium needs to be sucked into the buffer cylinder, the urea liquid in the urea tank is sucked into the buffer cylinder along the liquid inlet pipe and the second one-way valve, and the urea liquid in the buffer cylinder is ensured to be always saturated, the volume that the eccentric disc rotated the interior spun urea liquid of a week buffer cylinder is the same, along with tail gas exhaust rate's change, the slew rate that rotates the flabellum also can change thereupon, and then change the slew rate of eccentric disc, and then change and press the rate that the clamp plate pressed once, thereby change the blowout rate of urea liquid, the blowout of urea liquid changes along with tail gas exhaust rate's change and in real time, guaranteed to satisfy the urea volume that tail gas accomplished catalytic reduction reaction, also can not cause urea extravagant.
The disc on the second rotating shaft and the second rotating shaft rotate coaxially, the rotation speed of the disc changes along with the change of the exhaust rate of the tail gas, a chute is arranged in the disc, a second spring is connected in the chute, the free end of the second spring is connected with an impact block, the right side of the chute is connected with an induction switch, when the exhaust rate of the tail gas increases, the rotation speed of the disc increases, the centrifugal force borne by the impact block also increases, due to the restoring force of the second spring, the impact block slowly approaches the induction switch along with the increase of the centrifugal force, when the exhaust rate of the tail gas reaches a set value, the impact block just impacts the induction switch, an electromagnetic one-way valve on a branch pipe is further opened, the exhausted tail gas is shunted, the direction of an air outlet of the branch pipe is opposite to the flow direction of the tail gas, the tail gas flowing through the branch pipe collides with the tail gas flowing through an inner pipe at the air outlet of the branch pipe, the flow direction of the tail gas is opposite, and the kinetic energy counteracts a part of the two branches, and then reduce the flow rate of tail gas in catalytic translator, make the time that tail gas passes through catalytic reactor longer, make the ammonia that urea liquid gasification produced simultaneously and tail gas can abundant integration for the complete the going on of catalytic reduction reaction, the clean effect of reinforcing tail gas, when tail gas exhaust rate reduces the back, striking piece centrifugal force reduces, breaks away from the conflict with inductive switch, and the electromagnetism check valve is closed.
Has the advantages that:
(1) this technical scheme passes through the kinetic energy drive of tail gas and rotates the flabellum and rotate, and then drive the second pivot and drive eccentric disc and rotate together, and then extrude urea liquid from the urea jar, eccentric disc rotates a week spun urea liquid capacity fixed, when tail gas discharge volume changes, the rotation rate of rotating the flabellum is directly changed, and then change the rotation rate of eccentric disc, make the urea discharge volume change along with the discharge volume and the discharge rate real-time of tail gas, make exhaust urea liquid can satisfy catalytic reduction reaction's demand, make the whole emergence reactions of nitrogen oxide in the tail gas, can not cause the waste of urea liquid simultaneously.
(2) This technical scheme is through the heat energy in the make full use of tail gas that sets up of conducting strip and conducting rod, the heat energy absorption of conducting strip in with the tail gas, in the urea liquid in transmitting heat energy to on-vehicle urea jar through the conducting rod, the liquid state of urea liquid has been guaranteed to be stable, can not cause the unable production effect of urea solidification because of reasons such as the temperature is low, the temperature of tail gas has been reduced simultaneously, make the tail gas temperature be in catalytic reduction reaction's optimum temperature, and then make the clean effect of tail gas better.
(3) This technical scheme has set up the branch pipe, increase when the tail gas discharge volume, the discharge rate of tail gas also strengthens, when the tail gas velocity reachs and sets for the critical value, the solenoid valve in the branch pipe is automatic to be opened, the branch pipe is partly passed through in the tail gas reposition of redundant personnel, the tail gas of branch pipe of flowing through meets with the tail gas of flowing through the inner tube through the gas outlet of branch pipe, collision each other offsets a part of kinetic energy, make the speed of tail gas when getting into catalytic reactor reduce, increase the time that tail gas passes through catalytic reactor, make the complete going on of catalytic reduction reaction, the clean efficiency of tail gas has been strengthened, electromagnetism check valve is along with the change self-closing and the opening of tail gas discharge rate simultaneously, the practicality has been strengthened greatly.
(4) This technical scheme inner tube right side internal diameter grow has also reduced the speed that tail gas got into catalytic reaction reactor for tail gas can be complete in catalytic reaction ware carries out the redox reaction, shower nozzle blowout atomizing urea liquid, make the vaporization that urea liquid can be faster for gas and fuse with tail gas, better, faster completion catalytic reduction reaction, two eccentric discs that the symmetry set up have guaranteed that the smooth removal of pressing the platen can not take place the skew, guarantee the blowout effect of urea liquid.
Drawings
FIG. 1 is a schematic diagram of a front view structure of a motor vehicle exhaust degradation treatment device provided by the present invention;
FIG. 2 is a cross-sectional view of section A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along section B-B of FIG. 1;
FIG. 4 is an enlarged view taken at D in FIG. 2;
FIG. 5 is an enlarged view at C of FIG. 2;
FIG. 6 is a front cross-sectional view of the fan blade of the present invention;
reference numerals: the device comprises an outer pipe 1, a branch pipe 2, an inner pipe 3, a disc 4, a second gear 5, a first gear 6, a circular pipe connector 7, a first rotating shaft 8, a second rotating shaft 9, a heat conducting rod 10, rotating fan blades 11, an electromagnetic one-way valve 12, a catalytic reactor 13, a buffer cylinder 14, a first one-way valve 15, a liquid inlet pipe 16, a first spring 17, a pressing plate 18, a spray head 19, an eccentric disc 20, a second one-way valve 21, a liquid outlet pipe 22, a second spring 23, an induction switch 24, an impact block 25, a heat insulation layer 26, a heat conducting strip 27 and a sliding chute 28.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
as shown in fig. 1 and 2, a motor vehicle tail gas degradation treatment device comprises an outer tube 1 and an inner tube 3, the inner tube 3 is connected with a circular tube connector 7, the circular tube connector 7 is connected with an exhaust pipe by screw thread, the outer tube 1 is rotatably connected with a first rotating shaft 8 and a second rotating shaft 9, the first rotating shaft 8 passes through the inner tube 3, the first rotating shaft 8 is connected with a rotating fan blade 11, the rotating fan blade 11 is positioned in the inner tube 3, the first rotating shaft 8 is connected with a first gear 6, the second rotating shaft 9 is connected with two eccentric discs 20, the second rotating shaft 9 is connected with a second gear 5, the second gear 5 is meshed with the first gear 6, as shown in fig. 3, the inner side of the inner tube 3 is connected with a buffer cylinder 14, the buffer cylinder 14 is communicated with a liquid inlet tube 16, the liquid inlet tube 16 is connected with a first check valve 15, the free end of the liquid inlet tube 16 penetrates through the outer tube 1 to be connected with a urea tank, the urea tank is a conventional fixed vehicle-mounted device, and is well known by the public, therefore, not to be described too much, the bottom of the buffer cylinder 14 is connected with a first spring 17, the free end of the first spring 17 is connected with a pressing plate 18, the pressing plate 18 is connected with the inner side wall of the buffer cylinder 14 in a sealing and sliding manner, the pressing plate 18 is connected with two eccentric discs 20 in an abutting manner, as shown in fig. 4, the two eccentric discs 20 are arranged symmetrically about the center of the pressing plate 18, the pressing plate 18 is connected with a liquid outlet pipe 22, the liquid outlet pipe 22 is connected with a second one-way valve 21, the liquid outlet pipe 22 is connected with a nozzle 19, the nozzle 19 can atomize the sprayed urea liquid, as shown in fig. 6, the first rotating shaft 8 is a hollow circular pipe, the first rotating shaft 8 is internally provided with a heat conducting rod 10 in a hollow manner, the central axis of the heat conducting rod 10 is overlapped with the rotating central axis of the first rotating shaft 8, the rear end of the heat conducting rod 10 is fixedly connected with the inner side wall of the outer tube 1, the rotating fan blade 11 is connected with a heat conducting sheet 27 in an abutting manner with the heat conducting rod 10, the heat conducting rod 10 penetrates through the outer tube 1 and is connected with a heat insulating layer 26, the free end of the heat conducting rod 10 penetrates out of the outer pipe 1 and is inserted into the urea tank, the inner pipe 3 is connected with two branch pipes 2, the two branch pipes 2 are respectively positioned on two sides of the inner pipe 3, the direction of the air outlet of each branch pipe 2 is opposite to the direction of tail gas flow, the branch pipes 2 are connected with the electromagnetic one-way valves 12, the second rotating shaft 9 is connected with the disc 4, the disc 4 coaxially rotates with the second rotating shaft 9, as shown in fig. 5, the disc 4 is provided with a sliding groove 28, the sliding groove 28 is connected with the second spring 23, the free end of the second spring 23 is connected with the impact block 25, one end of the sliding groove 28, which is far away from the second spring 23, is connected with the induction switch 24, the induction switch 24 controls the opening and closing of the electromagnetic one-way valves 12, the inner pipe 3 is positioned on the right side of the branch pipe 2, and the inner diameter expansion section of the inner pipe 3 is connected with the catalytic reactor 13.
The specific implementation process is as follows:
tail gas enters the inner pipe 3 from the circular pipe connector 7, firstly passes through the rotating fan blade 11 to drive the rotating fan blade 11 to rotate, the heat conducting fins 27 conduct heat, heat is transferred to the vehicle-mounted urea tank, the rotating fan blade 11 rotates to drive the second rotating shaft 9 to start rotating, the eccentric disc 20 presses the pressing plate 18, the spray nozzle 19 starts spraying urea liquid, the tail gas is fused with the urea through the buffer cylinder 14, then catalytic reduction reaction is carried out through the catalytic reactor 13, the tail gas is discharged after being cleaned, when the tail gas discharge rate is increased, the rotating speed of the disc 4 is increased, the centrifugal force of the impact block 25 is increased to further impact the induction switch 24, the electromagnetic one-way valve 12 is opened, the tail gas is shunted at the branch pipe 2 to counteract partial kinetic energy, the flowing time of the tail gas in the catalytic reactor 13 is ensured to meet the time required by the catalytic reduction reaction, when the tail gas discharge rate is reduced, the centrifugal force of the impact block 25 is reduced to be separated from the contact with the induction switch 24, the electromagnetic check valve 12 is closed.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The utility model provides a motor vehicle exhaust degradation treatment equipment which characterized in that: comprises an outer tube (1) and an inner tube (3), wherein the inner tube (3) is connected with a round tube interface (7), the round tube interface (7) is in threaded connection with an exhaust pipe, the outer tube (1) is rotationally connected with a first rotating shaft (8) and a second rotating shaft (9), the first rotating shaft (8) penetrates through the inner tube (3), the first rotating shaft (8) is connected with rotating fan blades (11), the rotating fan blades (11) are positioned in the inner tube (3), the first rotating shaft (8) is connected with a first gear (6), the second rotating shaft (9) is connected with two eccentric discs (20), the second rotating shaft (9) is connected with a second gear (5), the second gear (5) is meshed with the first gear (6), the inner side of the inner tube (3) is connected with a buffer barrel (14), the buffer barrel (14) is communicated with a liquid inlet tube (16), feed liquor pipe (16) are connected with first check valve (15), wear out feed liquor pipe (16) free end outer tube (1) is connected with the urea jar, buffer cylinder (14) bottom is connected with first spring (17), first spring (17) free end is connected with presses down board (18), press down board (18) with buffer cylinder (14) inside wall sealing sliding connection, press down board (18) and two eccentric disc (20) are contradicted and are connected, press down board (18) and be connected with drain pipe (22), drain pipe (22) are connected with second check valve (21), drain pipe (22) are connected with shower nozzle (19), inner tube (3) are connected with catalytic reactor (13).
2. The motor vehicle exhaust degradation treatment device of claim 1, wherein: first pivot (8) are the cavity pipe, be equipped with in first pivot (8) cavity and lead heat pole (10), lead heat pole (10) center pin with first pivot (8) center pin coincidence of rotating, lead heat pole (10) one end with outer tube (1) inside wall fixed connection, rotation flabellum (11) are connected with conducting strip (27), conducting strip (27) with lead heat pole (10) are contradicted and are connected, lead heat pole (10) outer joint has thermal-insulated heat preservation (26), lead heat pole (10) free end is worn out outer tube (1) inserts the urea jar.
3. The motor vehicle exhaust degradation treatment device according to claim 2, wherein: inner tube (3) are connected with two branch pipes (2), two branch pipe (2) are located respectively inner tube (3) both sides, branch pipe (2) gas outlet direction is opposite with tail gas air current direction, branch pipe (2) are connected with electromagnetism check valve (12), second pivot (9) are connected with disc (4), disc (4) are opened there are spout (28), spout (28) are connected with second spring (23), second spring (23) free end is connected with striking piece (25), spout (23) are kept away from the one end of second spring (23) is connected with inductive switch (24), inductive switch (24) control opening and closing of electromagnetism check valve (12).
4. The motor vehicle exhaust degradation treatment device of claim 3, wherein: the two eccentric disks (20) are arranged in a manner of central symmetry with respect to the pressing plate (18).
5. The motor vehicle exhaust degradation treatment device of claim 3, wherein: the inner pipe (3) is located the branch pipe (2) right side internal diameter grow, catalytic reactor (13) is located inner pipe (3) internal diameter expanding section.
6. The equipment for treating the degradation of the tail gas of the motor vehicle according to claim 3, wherein: the spray head (19) can atomize the sprayed urea liquid.
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