CN202673418U - Pump assisted system for storing and supplying ammonia by one-stage waste heat mode - Google Patents
Pump assisted system for storing and supplying ammonia by one-stage waste heat mode Download PDFInfo
- Publication number
- CN202673418U CN202673418U CN2012203104460U CN201220310446U CN202673418U CN 202673418 U CN202673418 U CN 202673418U CN 2012203104460 U CN2012203104460 U CN 2012203104460U CN 201220310446 U CN201220310446 U CN 201220310446U CN 202673418 U CN202673418 U CN 202673418U
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- ammonia
- autoclave
- pipe
- tail gas
- delivery pipe
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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
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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
- Y02T10/40—Engine management systems
Abstract
The utility model relates to a pump assisted system for storing and supplying ammonia by a one-stage waste heat mode. The pump assisted system is characterized in that an electronic control unit is connected with an electromagnetic valve, a gas delivery pump and a proportional valve through a signal harness; a tail gas inlet temperature sensor, an NOX sensor, a pressure sensor and a pressure-resistant tank temperature sensor are connected with a signal input end of the electronic control unit through a signal wire; an antifreeze solution delivery pipe penetrates through the inside of a pressure-resistant tank, the induction end of the pressure sensor is positioned in the pressure-resistant tank but not in contact with a solid ammonia storage material, an air filter is connected with a reducing agent guide pipe through a reducing gas delivery pipe, a reducing agent guide pipe nozzle is inserted into a tail gas inlet pipe, the gas outlet end of an SCR (Selective Catalytic Reduction) post treater is connected with a tail gas discharging pipe; the tail gas inlet temperature sensor and the NOX sensor are connected to the tail gas inlet pipe; and the induction ends of the tail gas inlet temperature sensor and the NOX sensor are positioned in the tail gas inlet pipe. The pump assisted system has the characteristic of flexibility, can meet the emission control target when the vehicle is started at low temperature, and has the advantages of low cost, high reliability and convenience for use. The system is used in systems with above 4 SCR national standard, can also be applied to an FCEV (Fuel Cell Electric Vehicle) system, meets the application demand of the automobile industry in the future, and has a practical value.
Description
Technical field
The utility model relates to the auxiliary single-stage waste heat mode of a kind of pump and stores up ammonia for the system of ammonia, is applied to the SCR reprocessing industry of vehicle exhaust, also is applicable to the FCEV energy-storage system of fuel cell.
Background technique
Current, the whole world faces the comprehensive challenge of the energy and environment.Aspect the technological means selection of the emission compliance of orthodox car, people still face many difficult problems, for example, and the aspects such as technical approach of How to choose reprocessing.
SCR (Selective Catalytic Reduction) catalyzed conversion reduction technique is traditional post-processing technology.The essence of traditional SCR technology of this employing liquid area is to utilize urea at high temperature to decomposite ammonia, reacts under the comprehensive function of catalyzer and temperature as ammonia and the NOX in the engine exhaust of reducing agent, generates nontoxic N under the desirable operating mode
2And H
2O, thus reach the purpose of purification.
Traditional SCR has lot of advantages, for example, can have 50 ~ 85% NOX removal efficient in the scope of delivery temperature 250 ~ 550oC, and can effectively reduce the emission level of PM; Traditional SCR can easily satisfy Europe 4 and Europe 5 levels, also has the potentiality that reach Europe 6 levels; Reach at present traditional SCR technology that adopt in Europe 4, the fuel oil consumption of motor can reduce by 3 ~ 6%; Traditional SCR catalyzer does not contain precious metal, and is more relatively low than cost; Traditional SCR is to the quality of fuel oil for vehicles, and particularly Sulpher content is insensitive.Based on above analysis, traditional SCR post-processing technology also relatively is fit to vehicle condition and the fuel oil for vehicles situation of China.
If apply traditional vehicle-mounted SCR post-processing technology in China, must resolve carrier, catalyzer, carbamide reducing agent and add the dosage of supply network, carbamide reducing agent, the vital technological difficulties such as atomized spray, SCR catalyzer conversion efficiency, ammonia amount of leakage and system matches of carbamide reducing agent.
The each time upgrading of automobile emission standard all produces such or such shock effect to automobile industry.The Schedule that state's 4 standards of China are repeatedly postponed enforcement, it is not only the nonsynchronous sole cause of standard of fuel, also face the problem that the service facility of the carbamide reducing agent socialization of complicated social matching system and liquid is built, for example, behind state's 4 standard implementations, immediately can be to the required ECU(control unit of traditional SCR system running) and the DCU(batching unit) cause the demand, consider that the present automatical control systems such as vehicle-mounted ECU all are imported products, the DCU of domestic enterprise's independent development is difficult to carry out with it the communication coupling, otherwise, if the employing import product of ECU and DCU system 100%, not only price is very high, and the user is difficult to accept, and has source of goods problem at full stretch, also face complicated after sales service technology and the problem of cost, restricted the development and progress of whole automobile industry.In addition, the used liquid area reducing agent of traditional SCR system faces freezed in winter and is incubated the problem of thawing, and this has also caused traditional SCR system complex and the reason of poor stability.
Therefore, how obtaining low cost and high performance after-treatment system is the core content that advances this art progress.Inorganic salts can be used as the good choice of technology of following SCR system to the ammonia adsorption-desorption characteristics.
Some salts of technical grade, for example, chloride and their mixtures such as strontium chloride, magnesium chloride or calcium chloride, the system that is used in conjunction with ammonia, be the heat absorption and release phenomenon of the adsorption-desorption process of above-mentioned chloride and ammonia, the refrigeration system of the ripe large cold storage that is applied to industry.
It is the general principles of chemistry that above-mentioned anhydrous chloride and ammonia carry out chemisorption, the chloride of a molecule can adsorb the ammonia of 6 ~ 8 molecules in theory, form stable complex compound, ammonia is deviate from during heating, along with going deep into of research, it is found that, the adsorption-desorption model of these chlorides and ammonia and the principles of chemistry can be applied to the SCR system of motor vehicle tail-gas purifying fully.
In the national patent Information Network, with the storage ammonia word and search that is the theme, the patent No. is that ' a kind of Urotropine tail gas ammonia recovery device with gas phase method ', the patent No. of CN201120099229.7 is the characteristic component that ' be used for machine room of refrigerated warehouse join ammonia bindiny mechanism ' of CN201020677361.7 and ' composite functional ammonia storage device ' that the patent No. is CN201020269811.9 do not relate to the present invention.The patent No. is that CN200520057558.X's the patent of ' a kind of ammonia steaming device ' is a kind of the ammonia nitrogen industrial wastewater to be carried out the environment protection treating device that ammonia nitrogen is got rid of processing, does not also relate to the characteristic component among the present invention.Uncorrelated with the present invention.
The patent No. is that CN201010244091.5's ' be used for method and system that the work of SCR catalyzer is tested ' and the patent No. is that 2 inventions of CN200880104697.X ' operation method of SCR exhaust after treatment system and diagnostic method ' provide a kind of for selective catalytic reduction (SCR) catalytic converter and traditional liquid ureaclastic ammonia dispensing module and control system, does not relate to characteristic component of the present invention.
The patent No. is that CN200910197860.8's the invention of ' a kind of preparation method of efficient low-temperature ammonia-storing material ' is applied to the SCR after-treatment system, and feature is to adopt amino borane ammino-complex ammonia BH3 (NH3) n (n=1 ~ 3); The maximum storage of room temperature ammonia amount can reach 62.4wt%, still, considers the expensive of amino borane, has higher blast and burning grade, is not suitable for applying in enormous quantities of general industry field.
The patent No. is that CN200580026626.9's the invention of the solid material of delivering ammonia ' storage and ' relates to and storing and the solid material of delivering ammonia.The solid material of this storage ammonia comprises M
a(NH3)
nX
zIonic salt, salt solid material by the moulding of mould direct voltage, for example, is made cylinder, then arranged together a lot of this cylinders.The disadvantage of this patent is that cylinder is too closely knit, the saturated adsorption that carries out again ammonia after each ammonia desorb is finished needs for a long time, and for example 4 ~ 6 hours, efficient was very low, this becomes the reason that limits its application for the SCR storage ammonia system inconvenience very of using on the automobile.
The patent No. be CN200580009219.7's ' purposes of ammonia storage device in energy production ', this invention relates to a kind of generator unit, comprising general formula is M
a(NH3)
NXzAmmonia absorb and discharge salt, this patent mainly is applicable to fuel cell system.Mentioned property material and be such salt or be positioned on the porous carrier materials in the claim 4 of this patent, which kind of porous material statement is not, and those skilled in the art can't be implemented.
The patent No. be CN200710156866.1's ' a kind of amido complex compound and its production and use ' disclosure of the invention a kind of amido complex compound and its production and use.The composition of this amido complex compound is MX
m(NH3)
n, this invention is to the separation of ammonia in the used circulating air of ammonia synthesis process.Claim only relates to the preparation process of this ammonobase complex compound.
The patent No. is solid ammonia storage and the conveying material that CN200680005886.2's the patent of the high density of the ammonia ' storage ' comprises ammonia absorptions/desorb solid material, describedly be compacted to density greater than 50% storage of theoretical skeletal density and carried material that the solid ammonia storage medium is provided, the described metal salt solid material of this patent also is direct compression molding, Bond has been adopted in statement, only stated it to be to have adopted the silicon dioxide fibre Bond, do not have the dosage ratio yet, do not offer some clarification on the thin item of other composition that adopts, the professional and technical personnel almost can't implement.
The retrieval of above-mentioned patent and the analysis showed that is adsorbed and is resolved ammonia with activity storage ammoniate, has formed the after-treatment system of using at vehicle and has not also appeared in the newspapers.
Summary of the invention
The purpose of this utility model is to provide the auxiliary single-stage waste heat mode of a kind of pump to store up ammonia for the system of ammonia, and its composition that has adopted active material, porous material and Bond composition is as the carrier that stores up ammonia and put ammonia; The waste heat of engine coolant heats, and relies on control unit and one group of solenoid valve or Proportional valve, realizes that the SCR after-treatment system is carried and imported easily to the dosage of ammonia, realizes the removal to NOX; The simplification system improves reliability, also significantly reduces cost, eliminates the obstacle that large-scale industry is applied.
The technical solution of the utility model is achieved in that the auxiliary single-stage waste heat mode of a kind of pump stores up ammonia for the system of ammonia, by motor, the antifreeze liquid delivery pipe, solenoid valve, autoclave, the solid ammonia-storing material, air filter, charging hole, pressure transducer, pipe valve for subsequent use, the autoclave temperature transducer, the reducing gas delivery pipe, electronic control unit, Proportional valve, the gas inlet temperature transducer, the NOX sensor, the reducing agent conduit, tail gas enters pipe, exhaust emission tube, the SCR preprocessor, gas transfer pump forms, it is characterized in that: electronic control unit is by signal wire harness connected electromagnetic valve, gas transfer pump, Proportional valve, the gas inlet temperature transducer, the NOX sensor, pressure transducer, the autoclave temperature transducer is by the signal input part of signaling line connecting electronic control unit, antifreeze liquid delivery pipe and engine fluid Cascade System or in parallel, the antifreeze liquid delivery pipe passes autoclave inside, the pipeline that the antifreeze liquid delivery pipe is positioned at autoclave inside is the coil pipe distribution, solenoid valve is positioned on the antifreeze liquid delivery pipe, fill the solid ammonia-storing material in the autoclave, loading is 40% of tank body volume capacity, air filter is arranged on the autoclave, charging hole, pressure transducer, pipe valve for subsequent use, the autoclave temperature transducer, wherein air filter is positioned at the outlet side of autoclave, the induction end of autoclave temperature transducer is inserted in the solid ammonia-storing material, the induction end of pressure transducer is positioned at autoclave but does not contact the solid ammonia-storing material, air filter is connected with the reducing agent conduit by the reducing gas delivery pipe, the reducing agent catheter nozzle inserts tail gas and enters in the pipe pipeline, proportional valve on the reducing gas delivery pipe pipeline, gas transfer pump, tail gas enters pipe and connects SCR preprocessor inlet end, SCR preprocessor outlet side connects exhaust emission tube, the gas inlet temperature transducer, the NOX sensor is connected to tail gas and enters on the pipe, and its induction end is positioned at tail gas and enters the pipe pipeline.
The thickness of described autoclave tank body is 4 ~ 5mm, and is cylindrical, tank interior thermal spraying one deck nylon.
Good effect of the present utility model be system finish once fill ammonia after, service time is long, has sufficient practicability, Economy and advance; This technology is used the meaning with reality at vehicle-mounted SCR.
Description of drawings
Fig. 1 is accompanying drawing of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment: as shown in Figure 1, the auxiliary single-stage waste heat mode of a kind of pump is stored up ammonia for the system of ammonia, by motor 1, antifreeze liquid delivery pipe 2, solenoid valve 3, autoclave 4, solid ammonia-storing material 5, air filter 6, charging hole 7, pressure transducer 8, pipe valve 9 for subsequent use, autoclave temperature transducer 10, reducing gas delivery pipe 11, electronic control unit 12, Proportional valve 13, gas inlet temperature transducer 14, NOX sensor 15, reducing agent conduit 16, tail gas enters pipe 17, exhaust emission tube 18, SCR preprocessor 19, gas transfer pump 20 forms, it is characterized in that: electronic control unit 12 is by signal wire harness connected electromagnetic valve 3, gas transfer pump 20, Proportional valve 13, gas inlet temperature transducer 14, NOX sensor 15, pressure transducer 8, autoclave temperature transducer 10 is by the signal input part of signaling line connecting electronic control unit 12, antifreeze liquid delivery pipe 2 and motor 1 antifreeze liquid Cascade System or in parallel, antifreeze liquid delivery pipe 2 passes autoclave 4 inside, the pipeline that antifreeze liquid delivery pipe 2 is positioned at autoclave 4 inside is the coil pipe distribution, solenoid valve 3 is positioned on the antifreeze liquid delivery pipe 2, autoclave 4 interior filling solid ammonia-storing materials 5, loading is 40% of tank body volume capacity, air filter 6 is arranged on the autoclave 4, charging hole 7, pressure transducer 8, pipe valve 9 for subsequent use, autoclave temperature transducer 10, wherein air filter 6 is positioned at the outlet side of autoclave 4, the induction end of autoclave temperature transducer 10 is inserted in the solid ammonia-storing material 5, the induction end of pressure transducer 8 is positioned at autoclave 4 but does not contact solid ammonia-storing material 5, air filter 6 is connected with reducing agent conduit 16 by reducing gas delivery pipe 11, reducing agent conduit 16 nozzles insert tail gas and enter in pipe 17 pipelines, proportional valve 13 on reducing gas delivery pipe 11 pipelines, gas transfer pump 20, tail gas enters pipe 17 and connects SCR preprocessor 19 inlet ends, SCR preprocessor 19 outlet sides connect exhaust emission tube 18, gas inlet temperature transducer 14, NOX sensor 15 is connected to tail gas and enters on the pipe 17, and its induction end is positioned at tail gas and enters pipe 17 pipelines.
The thickness of described autoclave 4 tank bodies is 4 ~ 5mm, and is cylindrical, tank interior thermal spraying one deck nylon.
Selecting thickness is that at first to be welded into internal diameter be 300mm for the SUS304 plate of 4mm, highly be the stainless steel cask of 330mm, order is finished the welding of liquid circulation pipeline and coil pipe, finishes the welding of bottom, the inner surface heat spraying nylon powder of bucket once notices that heating coil does not spray nylon; Finish the welding of top capping, and finish charging hole 7, pressure transducer 8, pipe valve for subsequent use 9, temperature transducer 10, reducing gas delivery pipe 11 and filter 6 in the top capping, finished the connection of autoclave 4 relevant portions; Suppress leak test, guarantee that sealing and welding quality meet the demands;
Adopt 58 parts of industrial anhydrous magnesium chlorides, 2 parts of expanded graphites, 15 parts of deionized waters, 15 parts of 10 parts of industrial alcohols and industrial ball clays, above-mentioned material adopt the dough mixing machine of machinery to mix the powder that evenly becomes hygrometric state, incorporation time 5min, mixture is filled in the autoclave 4 by the charging hole 7 on the autoclave 4, adopt this withstand voltage tank body 5 ~ 10min of method concussion of machinery concussion, remove air clearance wherein, feeding quantity causes 40% of tank body volume capacity; Whole tank body is put into vacuum drying cabinet, begin heating from 25 ℃ of room temperatures under the normal pressure, average 5 ℃/10min, be warmed up to 70 ℃, charging hole 7 opens wide discharges water vapor and alcohol steam, and 70 ℃ keep 30min, then under this temperature, start vacuum pump, progressively vacuumize, divide to make degree of vacuum reach 550mabr three times heat-insulation pressure keeping 30min;
Adopt high-purity industrial ammonia bottle by pipe valve 9 for subsequent use, fill ammonia; Carry out under the environment of natural ventilation, in advance autoclave 4 is put into enough tanks of large cooling water of a water yield, connect the ammonia steel cylinder, by reduction valve and drying system, slowly fill ammonia in the outlet pressure scope of 0.1Mpa, filling the ammonia time is 3h; At the autoclave that fills the included thermal insulation layer of 4-of weighing before and after the ammonia, confirm that the clean quality of the ammonia that is filled with is greater than 8kg; Finish fill ammonia after, the valve closing of whole system is guaranteed not reveal;
The electronic control unit 12 of join dependency, Proportional valve 13, NOX sensor 15, reducing agent conduit 16, gas inlet 17, tail gas exhaust port 18, SCR preprocessor 19 and gas transfer pump 20; And be connected with state's 4 threst stands of a 8.6L, start said system, according to setting, started the 20-gas transfer pump in the time of the motivation running, realized beginning to carry ammonia from ' zero-time ', the delivery volume of setting ammonia is 90% of theory demands amount, begin test, the NOX conversion ratio of test engine under 6 operating modes, in the situation that the ammonia leakage rate is less than 15ppm, the NOX conversion ratio maintains in 70 ~ 92% scopes; Behind the engine running 8min, the temperature of 10-temperature transducer is greater than 60 ℃, the 20-gas transfer pump quits work, at this moment, rely on the waste heat of system to realize that the delivery volume of setting equally ammonia is 90% of theory demands amount for ammonia, begin test, the NOX conversion ratio of test engine under 6 operating modes, in the situation that the ammonia leakage rate is less than 10ppm, the NOX conversion ratio maintains in 63 ~ 80% scopes;
Said system is assembled on the chassis of a heavy-duty diesel oil truck, gas transfer pump 20 commences work without delay, gas transfer pump 20 quits work behind Vehicle Driving Cycle 13min, MAP figure according to the NOX discharging of the normal operation of vehicle and this type, the delivery volume of setting ammonia is 80% of theory demands amount, and when 15000km, this system still has the ammonia supply, NOX result under the real vehicle measurement full-loading condition meets design requirement in 44 ~ 66% scopes;
Ammonia Way out on autoclave 4 tank body tops has been installed air filter 6, guarantees that the inorganic powder in the tank body can not enter pipe-line system and stop up accurate device; Tank body is tightened charging hole 7 after adding active material; Pressure transducer 8 also is an automatic pressure-limit valve, guarantees the releasing pressure automatically of overpressure system; Finish installation pipe valve 9 for subsequent use at tank body, temperature transducer 10 and the reducing gas delivery pipe 11 that connects by air filter 6;
Reactive gas pass into and finishing by pipe valve 9 for subsequent use of adsorbing undertaken; Can adopt high-purity industrial ammonia bottle, under the environment of natural ventilation, the absorption of considering ammonia is exothermic process, it is the key that guarantees the ammonia quick adsorption that the heat of system is shifted out timely, therefore, in advance the stainless autoclave 4 of included thermal insulation layer is put into enough large tanks of a water yield, connect the ammonia steel cylinder, by reduction valve and drying system, in the outlet pressure scope of 0.02 ~ 0.2Mpa, slowly fill ammonia, filling the ammonia time is 2 ~ 3h; At the autoclave 4 that fills the included thermal insulation layer of weighing before and after the ammonia, confirm that the clean quality of the ammonia that is filled with is in prespecified range; Finish fill ammonia after, the valve closing of whole system is guaranteed not reveal;
Autoclave 4 mounting point onboard is and the side of SCR preprocessor 19 at vehicle in order to reduce the length of pipeline, to reduce the time of system responses, the sensitivity of increase system responses;
Reaching certain level when row's temperature of motor or NOX level is that the aperture of electronic control unit 12 control ratio valves 13 realizes that ammonia changes to the conveying of SCR preprocessor 19, satisfies the demand that under the vehicle difference operating modes NOX is removed.
Claims (2)
1. the auxiliary single-stage waste heat mode of pump is stored up ammonia for the system of ammonia, by motor, the antifreeze liquid delivery pipe, solenoid valve, autoclave, the solid ammonia-storing material, air filter, charging hole, pressure transducer, pipe valve for subsequent use, the autoclave temperature transducer, the reducing gas delivery pipe, electronic control unit, Proportional valve, the gas inlet temperature transducer, the NOX sensor, the reducing agent conduit, tail gas enters pipe, exhaust emission tube, the SCR preprocessor, gas transfer pump forms, it is characterized in that: electronic control unit is by signal wire harness connected electromagnetic valve, gas transfer pump, Proportional valve, the gas inlet temperature transducer, the NOX sensor, pressure transducer, the autoclave temperature transducer is by the signal input part of signaling line connecting electronic control unit, antifreeze liquid delivery pipe and engine fluid Cascade System or in parallel, the antifreeze liquid delivery pipe passes autoclave inside, the pipeline that the antifreeze liquid delivery pipe is positioned at autoclave inside is the coil pipe distribution, solenoid valve is positioned on the antifreeze liquid delivery pipe, fill the solid ammonia-storing material in the autoclave, loading is 40% of tank body volume capacity, air filter is arranged on the autoclave, charging hole, pressure transducer, pipe valve for subsequent use, the autoclave temperature transducer, wherein air filter is positioned at the outlet side of autoclave, the induction end of autoclave temperature transducer is inserted in the solid ammonia-storing material, the induction end of pressure transducer is positioned at autoclave but does not contact the solid ammonia-storing material, air filter is connected with the reducing agent conduit by the reducing gas delivery pipe, the reducing agent catheter nozzle inserts tail gas and enters in the pipe pipeline, proportional valve on the reducing gas delivery pipe pipeline, gas transfer pump, tail gas enters pipe and connects SCR preprocessor inlet end, SCR preprocessor outlet side connects exhaust emission tube, the gas inlet temperature transducer, the NOX sensor is connected to tail gas and enters on the pipe, and its induction end is positioned at tail gas and enters the pipe pipeline.
2. the auxiliary single-stage waste heat mode of a kind of pump described in is according to claim 1 stored up ammonia for the system of ammonia, it is characterized in that the thickness of described autoclave tank body is 4 ~ 5mm, and is cylindrical, tank interior thermal spraying one deck nylon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203104460U CN202673418U (en) | 2012-06-29 | 2012-06-29 | Pump assisted system for storing and supplying ammonia by one-stage waste heat mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203104460U CN202673418U (en) | 2012-06-29 | 2012-06-29 | Pump assisted system for storing and supplying ammonia by one-stage waste heat mode |
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| CN202673418U true CN202673418U (en) | 2013-01-16 |
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| CN2012203104460U Expired - Lifetime CN202673418U (en) | 2012-06-29 | 2012-06-29 | Pump assisted system for storing and supplying ammonia by one-stage waste heat mode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733912A (en) * | 2012-06-29 | 2012-10-17 | 中国第一汽车股份有限公司 | Post-processing control unit of active matter ammonia storage and supply in pump auxiliary afterheat manner |
| CN103541796A (en) * | 2013-10-30 | 2014-01-29 | 中国第一汽车股份有限公司 | Ammonia gas metering method for solid ammonia storing system |
| CN103541798A (en) * | 2013-10-30 | 2014-01-29 | 中国第一汽车股份有限公司 | Mass flow meter based detection method for remaining ammonia amount of solid ammonia storage system |
| CN104100337A (en) * | 2014-07-24 | 2014-10-15 | 吉林省众鑫汽车装备有限公司 | Selective catalytic reduction system of solid reductant |
-
2012
- 2012-06-29 CN CN2012203104460U patent/CN202673418U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733912A (en) * | 2012-06-29 | 2012-10-17 | 中国第一汽车股份有限公司 | Post-processing control unit of active matter ammonia storage and supply in pump auxiliary afterheat manner |
| CN102733912B (en) * | 2012-06-29 | 2016-12-21 | 中国第一汽车股份有限公司 | The preparation of a kind of solid ammonia storage material for aftertreatment control unit and fill method |
| CN103541796A (en) * | 2013-10-30 | 2014-01-29 | 中国第一汽车股份有限公司 | Ammonia gas metering method for solid ammonia storing system |
| CN103541798A (en) * | 2013-10-30 | 2014-01-29 | 中国第一汽车股份有限公司 | Mass flow meter based detection method for remaining ammonia amount of solid ammonia storage system |
| CN103541798B (en) * | 2013-10-30 | 2016-05-04 | 中国第一汽车股份有限公司 | The detection method of the residue ammonia amount of the solid storage ammonia system based on mass flowmenter |
| CN104100337A (en) * | 2014-07-24 | 2014-10-15 | 吉林省众鑫汽车装备有限公司 | Selective catalytic reduction system of solid reductant |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
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| CX01 | Expiry of patent term |