CN110043348B - Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof - Google Patents
Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof Download PDFInfo
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- CN110043348B CN110043348B CN201910447374.0A CN201910447374A CN110043348B CN 110043348 B CN110043348 B CN 110043348B CN 201910447374 A CN201910447374 A CN 201910447374A CN 110043348 B CN110043348 B CN 110043348B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000746 purification Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000007921 spray Substances 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000003860 storage Methods 0.000 claims abstract description 23
- 238000009792 diffusion process Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 48
- 239000003595 mist Substances 0.000 claims description 33
- 238000005507 spraying Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 23
- 239000003054 catalyst Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910002089 NOx Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000009295 sperm incapacitation Effects 0.000 description 1
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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
-
- 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
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/108—Auxiliary reduction catalysts
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to an exhaust gas purification system capable of preventing automobile exhaust gas from diffusing and a working method thereof, the system comprises a water storage tank, an electric pump, a spray pipe, a spray baffle, a liquid collecting pipe and a liquid collecting box, wherein the water storage tank and the electric pump are arranged on a vehicle frame, the water storage tank is connected with the electric pump through a low-pressure pipeline, the spray pipe is of a hollow annular structure, distributing pipes are uniformly distributed on the annular part of the spray pipe, the front ends of the distributing pipes are collected, the rear ends of the distributing pipes are respectively provided with a nozzle, the electric pump is communicated with the collecting part of the spray pipe through a high-pressure pipeline, the spray pipe is sleeved on an exhaust pipe of an automobile through a hollow part, the spray baffle is arranged on the rear side part of the spray pipe, one end of the liquid collecting pipe is connected with the spray baffle, and the other end of the liquid collecting pipe is connected with the liquid collecting box. The system and the working method thereof are not only beneficial to preventing the diffusion of automobile exhaust, purifying the exhaust and reducing the discharge temperature, but also simple in structure and easy to install and realize.
Description
Technical Field
The invention relates to the technical field of automobile exhaust purification devices, in particular to an exhaust purification system capable of preventing automobile exhaust from diffusing and a working method thereof.
Background
At present, engine exhaust gas of almost all fuel vehicles is directly discharged into the air through exhaust tail gas pipelines, and the tail gas contains a large amount of harmful gases such as sulfide, nitrogen oxides, carbon, lead and the like and inhalable particles, and the exhaust gas emissions are distributed and diffused in the air, so that the degree of harmful gases, floating dust and haze in the air is continuously increased, the living environment of human beings is seriously polluted, and the health of the human beings is threatened.
The purification of exhaust gas in the automobile manufacturing industry mainly adopts measures of purification in the machine and purification outside the machine (exhaust aftertreatment), and a closed-loop fuel injection electronic control system is adopted in the machine, namely, the feedback control is carried out by an oxygen sensor, and an exhaust gas recirculation (EGR valve) system is also adopted to inhibit the generation of nitrogen oxides. The purification outside the engine is by a three-way catalytic cleaner (exhaust aftertreatment) which can lead the harmful components CO, HC and NO in the exhaust gas x There is a certain drop. Due to a plurality of factors, after an automobile runs for a period of mileage, the problems of abnormal purification in an engine, exceeding of standard of tail gas and the like can be caused by faults such as poisoning failure of an oxygen sensor and a three-way catalyst, blockage of the three-way catalyst, blockage and clamping stagnation of an EGR valve by sediment and the like. Many times such problems are not detected, and car maintenance is also commonThe related parts are not replaced, so that the running emission with diseases is not purified. Even if the three-way catalyst is not out of order, part of harmful gas is discharged and diffused in the air, and even the rolling dense smoke is not blocked. This is because there is no recirculation of exhaust gas during warm-up and idling of the general exhaust gas recirculation system, and there is inevitably an increase in NOx emissions at full load and high speed because there is no recirculation of exhaust gas for maintaining idle stability.
To inhibit NO x SCR systems, a technology of selective catalytic reduction exhaust gas aftertreatment (SCR) system for vehicles, which reacts ammonia generated by urea reaction with automobile exhaust gas, have been developed, but SCR is a complex system, and has the following disadvantages in addition to the complex structure: 1. SCR is complex to install, costly, and must be installed before the automobile leaves the factory. 2. The production of urea also causes secondary pollution. 3. The SCR has no effect on the pollutants such as CO, CH, particulates, etc. in the exhaust gas and other equipment must be added. 4. SCR has high intelligent requirements on automobiles, and the automobiles are easy to cause incapacitation of ignition. 5. Most vehicles after being equipped with an SCR aftertreatment system cause new points of failure for the vehicle, resulting in low SCR popularity today. Soot particulate cleaning is used in diesel vehicles, also simply with microporous filters. The filter works for a period of time to remove particles accumulated on the filter element in time, otherwise, the exhaust resistance is increased. Also, a fan is installed at the exhaust port to prevent the filter from being blocked, and the substances blocked at the filter port are burned off by re-spraying gasoline and re-igniting the substances. However, these methods have the problems that new harmful components are released, waste gas cannot be purified, and particularly, the harmful tail gas cannot be prevented from being diffused in urban environment to cause pollution, and the environmental temperature is increased.
Disclosure of Invention
The invention aims to provide an exhaust gas purifying system for preventing automobile exhaust from diffusing and a working method thereof, which are not only beneficial to preventing the automobile exhaust from diffusing, purifying the exhaust gas and reducing the emission temperature, but also simple in structure and easy to install and realize.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides an prevent tail gas clean system of automobile exhaust diffusion, includes storage water tank, electric pump, spray pipe, spraying baffle, collector tube and collector box, storage water tank and electric pump are installed on the frame, the storage water tank is connected with the electric pump through low pressure pipeline, the spray pipe is hollow ring shape structure, the ring portion equipartition of spray pipe has the distribution pipe, and each distribution pipe front end gathers, and the rear end is equipped with the nozzle respectively, the electric pump is through the collection portion intercommunication of high pressure pipeline and spray pipe, the spray pipe is established on the blast pipe of car through the well hollow part cover, the rear portion at the spray pipe is installed to the spraying baffle, collector tube one end is connected with the spraying baffle, and the other end is connected with the collector box.
Further, the spray pipe comprises an inner circular metal pipe and an outer circular metal pipe, a plurality of distributing pipes are uniformly distributed on the circular ring part between the inner circular metal pipe and the outer circular metal pipe, the front end of each distributing pipe is communicated with an annular collecting part, the annular collecting part is communicated with a high-pressure pipeline, and the rear end of each distributing pipe is respectively provided with a nozzle for spraying water mist and absorbing automobile exhaust.
Further, the installation angle of each nozzle is inclined towards the center of the spray pipe, so that when all the nozzles spray water mist at the same time, a shrinkage water mist wall is formed, and automobile exhaust is blocked and absorbed.
Further, the spraying baffle comprises an arc-shaped baffle cover and a vertical baffle, the liquid collecting pipe is an arc-shaped liquid collecting pipe, the front end of the arc-shaped baffle cover is arranged on the upper portion of the rear side of the spraying pipe, the rear end of the arc-shaped baffle cover is connected with the upper end of the vertical baffle, and the lower end of the vertical baffle is connected with the arc-shaped liquid collecting pipe so as to block sprayed water mist, and the water mist flows back to the liquid collecting box after being collected.
Further, the water storage tank is provided with a water inlet, and the liquid collecting tank is provided with a liquid outlet.
The invention also provides a working method of the tail gas purifying system for preventing the diffusion of the tail gas of the automobile, which comprises the following steps:
1) When the automobile engine works, the system is started, and the electric pump starts to work;
2) The electric pump pumps out water from the water storage tank, and the water is conveyed to the spray pipe through the high-pressure pipeline after being pressurized;
3) The spray pipe sprays water mist through a distributing pipe and a nozzle on the spray pipe, blocks automobile exhaust, and fully collides with dust and waste gas in the automobile exhaust for condensation and reaction;
4) The water mist absorbing the automobile exhaust is blocked by the spray baffle, converged to the liquid collecting pipe and then flows back to the liquid collecting box.
Further, the device is characterized in that the installation angle of each nozzle arranged at the rear end of the spray pipe is inclined to the center of the spray pipe by a set angle, so that when all the nozzles spray water mist at the same time, a contracted water mist wall is formed, and automobile exhaust is fully blocked.
Further, the water in the water storage tank is added with a yellow nitrate smoke treating agent.
Compared with the prior art, the invention has the beneficial effects that: the tail gas purifying system and the working method thereof are provided, and the tail gas purifying system and the working method thereof are characterized in that a spray system is arranged at the rear end of an exhaust pipe of an automobile, and the tail gas of the automobile is condensed, reacted and absorbed by spraying water mist, so that the diffusion of the tail gas of the automobile is prevented, the tail gas is purified, the exhaust temperature is reduced, and secondary pollution is avoided. The collected waste liquid can be further converted into liquid industrial raw materials for reuse, and secondary pollution is avoided. In addition, the system has the advantages of simple structure, low manufacturing cost, easy manufacture, installation and implementation, strong practicability and wide application prospect.
Drawings
Fig. 1 is a schematic structural view of an exhaust gas purifying system according to an embodiment of the present invention.
In the figure, 1, a water storage tank, 2, an electric pump, 3, a spray pipe, 4, a spray baffle, 5, a liquid collecting pipe, 6, a liquid collecting box, 7, a low-pressure pipeline, 8, a distribution pipe, 9, a nozzle, 10, a high-pressure pipeline, 11, an annular collecting part, 12, a hollow part, 13, an inner circular metal pipe, 14, an outer circular metal pipe, 15, an arc-shaped baffle cover, 16, a vertical baffle, 17, a water adding port, 18 and a liquid draining port.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
The invention firstly removes the SCR system, and on the basis of the existing three-way catalyst of the external purification device for exhaust aftertreatment, an exhaust gas purification system for preventing the diffusion of automobile exhaust is additionally arranged on an automobile exhaust pipe, and clean water liquid (yellow smoke treating agent capable of eliminating nitrogen oxides can be added) is utilized to generate high-pressure water mist to prevent the diffusion of the automobile exhaust, and meanwhile, the harmful components CO, HC, SO, NO and the like of the discharged harmful gas are converted into harmless gas after being absorbed by the water mist, and the acid liquid is generated for recovery, so that the exhaust gas is purified.
The invention provides a tail gas purifying system for preventing automobile tail gas diffusion, which is shown in figure 1 and comprises a water storage tank 1, an electric pump 2, a spray pipe 3, a spray baffle 4, a liquid collecting pipe 5 and a liquid collecting box 6, wherein the water storage tank 1 and the electric pump 2 are arranged on a vehicle frame, the water storage tank 1 is connected with the electric pump 2 through a low-pressure pipeline 7, the spray pipe 3 is of a hollow annular structure, distributing pipes 8 are uniformly distributed on the annular part of the spray pipe 3, the front ends of the distributing pipes 8 are respectively provided with a nozzle 9, the rear ends of the distributing pipes are respectively provided with a nozzle 9, the electric pump 2 is communicated with a converging part 11 of the spray pipe 3 through a high-pressure pipeline 10, the spray pipe 3 is sleeved on an exhaust tail pipe of an automobile through a hollow part 12, the spray baffle 4 is arranged on the rear side part of the spray pipe 3, one end of the liquid collecting pipe 5 is connected with the spray baffle 4, and the other end of the liquid collecting pipe 5 is connected with the liquid collecting box 6. The water storage tank 1 is provided with a water inlet 17, and the liquid collecting tank 6 is provided with a liquid outlet 18.
Specifically, the spray pipe 3 comprises an inner circular metal pipe 13 and an outer circular metal pipe 14, a plurality of distributing pipes 8 are uniformly distributed on the circular ring part between the inner circular metal pipe 13 and the outer circular metal pipe 14, the front end of each distributing pipe 8 is communicated with an annular collecting part 11, the annular collecting part 11 is communicated with a high-pressure pipeline 10, and the rear end of each distributing pipe 8 is respectively provided with a nozzle 9 for spraying water mist and absorbing automobile exhaust. The installation angle of each nozzle 9 is inclined by about 20 degrees to the center of the spray pipe, so that when all the nozzles spray water mist at the same time, a shrinkage water mist wall is formed, automobile exhaust is blocked and absorbed, and the diffusion of exhaust smoke dust is prevented.
In order to fully block and collect the sprayed water mist, the spraying baffle 4 (comprising a circular arc-shaped blocking cover 15 and a vertical baffle 16), the liquid collecting pipe 5 is a circular arc-shaped liquid collecting pipe, the front end of the circular arc-shaped blocking cover 15 is arranged on the upper portion of the rear side of the spraying pipe 3, the rear end of the circular arc-shaped blocking cover is connected with the upper end of the vertical baffle 16, and the lower end of the vertical baffle 16 is connected with the circular arc-shaped liquid collecting pipe 5 to block the sprayed water mist, and the water mist flows back to the liquid collecting box 6 after being collected.
The invention also provides a working method of the tail gas purification system, which comprises the following steps:
1) When the automobile engine works, the system is started, and the electric pump 2 starts to work.
2) The electric pump 2 pumps out water from the water storage tank 1, pressurizes the water and then sends the water to the spray pipe 3 through the high-pressure pipeline 10.
3) The spray pipe 3 sprays 1-100 mu m superfine water mist through the distribution pipe 8 and the high-performance nozzle 9 on the spray pipe to block automobile exhaust, and the spray pipe fully collides with dust and waste gas in the automobile exhaust to condense and react. In this embodiment, the mounting angle of each nozzle 9 provided at the rear end of the spray tube 3 is inclined by about 20 ° toward the center of the spray tube, so that a convergent water mist wall is formed when all the nozzles simultaneously spray water mist, thereby sufficiently blocking the automobile exhaust.
4) The water mist absorbed by the automobile exhaust is blocked by the spray baffle 4, converged to the liquid collecting pipe 5, and then flows back to the liquid collecting box 6.
In the invention, the purification of automobile exhaust gas and nitrogen oxides comprises the following two methods:
1. only water is added into the water storage tank.
The water in the water storage tank enters the electric pump to be pressurized through the low-pressure pipeline, then enters the spray pipe 3 through the high-pressure pipeline, and is continuously sprayed out through the nozzle 9, and as the nozzle is inclined 20 degrees towards the center of the spray pipe, a contracted high-efficiency dustproof water mist wall for capturing and agglomerating smoke dust is formed, the diffusion of tail gas is blocked, and the following reaction can be carried out on nitrogen oxides and water mist in the tail gas:
2NO + O 2 = 2NO 2
3NO 2 + H 2 O = 2HNO 3 + NO
4NO + 3O 2 + 2H 2 O = 4HNO 3
in this way nitric oxide, nitrogen dioxide, nitrous oxide, etc. are soluble in water. Nitrogen and oxygen in flue gasThe chemical compound can be reduced by water spraying, and the produced liquid 4HNO 3 The waste liquid can be recycled after being collected by the liquid collecting box as industrial raw materials, and waste materials can be changed into things of value.
2. In addition to water in the water tank, ICN-04 (yellow nitrate smoke treating agent) is added appropriately.
ICN-04 is an environment-friendly treating agent which is easy to purchase, and the ICN-04 is characterized in that:
1) ICN-04 is nontoxic and has no secondary pollution, and is suitable for various environments.
2) ICN-04 can reduce nitrogen oxides into nitrogen gas completely, eliminates pollution of nitrogen oxides in waste gas thoroughly, and has no toxicity and secondary pollution.
3) The operation is simple, and a certain amount of ICN-04 is directly added into the water storage tank at the water inlet.
4) The cost and running cost of adding ICN-04 are lower than those of other methods.
The above is a preferred embodiment of the present invention, and all changes made according to the technical solution of the present invention belong to the protection scope of the present invention when the generated functional effects do not exceed the scope of the technical solution of the present invention.
Claims (5)
1. The tail gas purification system for preventing the diffusion of automobile tail gas is characterized by comprising a water storage tank, an electric pump, spray pipes, spray baffles, a liquid collecting pipe and a liquid collecting box, wherein the water storage tank and the electric pump are arranged on a vehicle frame, the water storage tank is connected with the electric pump through a low-pressure pipeline, the spray pipes are of hollow annular structures, distributing pipes are uniformly distributed on the annular parts of the spray pipes, the front ends of the distributing pipes are collected, the rear ends of the distributing pipes are respectively provided with a nozzle, the electric pump is communicated with the collecting parts of the spray pipes through a high-pressure pipeline, the spray pipes are sleeved on an exhaust pipe of an automobile through a hollow part, the spray baffles are arranged on the rear side parts of the spray pipes, one ends of the liquid collecting pipes are connected with the spray baffles, and the other ends of the liquid collecting pipes are connected with the liquid collecting box;
the spray pipe comprises an inner circular metal pipe and an outer circular metal pipe, a plurality of distribution pipes are uniformly distributed on the circular ring part between the inner circular metal pipe and the outer circular metal pipe, the front end of each distribution pipe is communicated with an annular collecting part, the annular collecting part is communicated with a high-pressure pipeline, and the rear end of each distribution pipe is respectively provided with a nozzle for spraying water mist and absorbing automobile tail gas;
the installation angle of each nozzle is inclined towards the center of the spray pipe, so that when all the nozzles spray water mist at the same time, a shrinkage water mist wall is formed, and automobile exhaust is blocked and absorbed;
the spraying baffle comprises an arc-shaped baffle cover and a vertical baffle, the liquid collecting pipe is an arc-shaped liquid collecting pipe, the front end of the arc-shaped baffle cover is arranged on the upper portion of the rear side of the spraying pipe, the rear end of the arc-shaped baffle cover is connected with the upper end of the vertical baffle, and the lower end of the vertical baffle is connected with the arc-shaped liquid collecting pipe so as to block sprayed water mist, and the water mist flows back to the liquid collecting box after being collected.
2. The exhaust gas purifying system for preventing diffusion of exhaust gas of an automobile according to claim 1, wherein the water storage tank is provided with a water inlet, and the liquid collection tank is provided with a liquid outlet.
3. The method of operating an exhaust gas purification system for preventing diffusion of automotive exhaust gas according to claim 1, comprising the steps of:
1) When the automobile engine works, the system is started, and the electric pump starts to work;
2) The electric pump pumps out water from the water storage tank, and the water is conveyed to the spray pipe through the high-pressure pipeline after being pressurized;
3) The spray pipe sprays water mist through a distributing pipe and a nozzle on the spray pipe, blocks automobile exhaust, and fully collides with dust and waste gas in the automobile exhaust for condensation and reaction;
4) The water mist absorbing the automobile exhaust is blocked by the spray baffle, converged to the liquid collecting pipe and then flows back to the liquid collecting box.
4. The method of claim 3, wherein the mounting angles of the nozzles disposed at the rear end of the spray pipe are inclined at a predetermined angle toward the center of the spray pipe so as to form a convergent water mist wall for substantially blocking the vehicle exhaust when all the nozzles spray water mist at the same time.
5. The method of claim 3, wherein a yellow smoke treating agent is added to the water in the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447374.0A CN110043348B (en) | 2019-05-27 | 2019-05-27 | Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447374.0A CN110043348B (en) | 2019-05-27 | 2019-05-27 | Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110043348A CN110043348A (en) | 2019-07-23 |
| CN110043348B true CN110043348B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910447374.0A Active CN110043348B (en) | 2019-05-27 | 2019-05-27 | Tail gas purification system capable of preventing automobile tail gas from diffusing and working method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114017165A (en) * | 2021-11-18 | 2022-02-08 | 王祥垒 | Secondary purifier for tail gas of engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM287868U (en) * | 2005-07-06 | 2006-02-21 | Ching-Chuan Wu | Exhaust gas purification device |
| CN201212411Y (en) * | 2008-04-01 | 2009-03-25 | 任才龙 | Atomization type automobile tail gas purifier |
| KR20120000961A (en) * | 2010-06-28 | 2012-01-04 | 현대제철 주식회사 | Apparatus for removing nitrogen oxide of flue gas |
| CN105134339A (en) * | 2015-09-25 | 2015-12-09 | 哈尔滨工业大学（威海） | Automobile exhaust purifying device adopting water fog charges and plasma |
| CN209925064U (en) * | 2019-05-27 | 2020-01-10 | 厦门大学嘉庚学院 | Tail gas purification device for preventing automobile tail gas diffusion |
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2019
- 2019-05-27 CN CN201910447374.0A patent/CN110043348B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM287868U (en) * | 2005-07-06 | 2006-02-21 | Ching-Chuan Wu | Exhaust gas purification device |
| CN201212411Y (en) * | 2008-04-01 | 2009-03-25 | 任才龙 | Atomization type automobile tail gas purifier |
| KR20120000961A (en) * | 2010-06-28 | 2012-01-04 | 현대제철 주식회사 | Apparatus for removing nitrogen oxide of flue gas |
| CN105134339A (en) * | 2015-09-25 | 2015-12-09 | 哈尔滨工业大学（威海） | Automobile exhaust purifying device adopting water fog charges and plasma |
| CN209925064U (en) * | 2019-05-27 | 2020-01-10 | 厦门大学嘉庚学院 | Tail gas purification device for preventing automobile tail gas diffusion |
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