CN208281086U - A kind of tail gas clean-up cyclic processing device of gas engine - Google Patents
A kind of tail gas clean-up cyclic processing device of gas engine Download PDFInfo
- Publication number
- CN208281086U CN208281086U CN201820604460.9U CN201820604460U CN208281086U CN 208281086 U CN208281086 U CN 208281086U CN 201820604460 U CN201820604460 U CN 201820604460U CN 208281086 U CN208281086 U CN 208281086U
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- CN
- China
- Prior art keywords
- gas
- air inlet
- cooler
- egr
- manifold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 125000004122 cyclic group Chemical group 0.000 title claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000872 buffer Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000035568 catharsis Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 42
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 206010067171 Regurgitation Diseases 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a kind of tail gas clean-up cyclic processing devices of gas engine, including air inlet pipeline and gas exhaust piping；Air filter, electronic throttle, compressor, cooler, throttle body and inlet manifold are provided on air inlet pipeline；Ternary catalyzing unit is provided in offgas duct；EGR valve is installed on circulation pipe；Inlet manifold includes mixing tube, inlet manifold and air intake branch, EGR air inlet pipe.Portion in gas exhaust piping can be entered circulation pipe by triple valve by the processing system of the utility model, the exhaust gas of circulation pipe is directly connect with EGR air inlet pipe after EGR valve, exhaust gas is allowed to enter directly into exhaust manifold, influence of the exhaust gas to air inlet pipeline can be reduced by entering air inlet pipeline compared to exhaust gas, play the role of circular treatment；Remaining exhaust gas in gas exhaust piping is removed by ternary catalyzing unit processing heel row simultaneously, plays catharsis.
Description
Technical field
The utility model relates to a kind of tail gas clean-up cyclic processing devices of gas engine.
Background technique
The gas generated after combustion in IC engine is largely discharged after treatment, has small part of gas that will pass through
Circulating line, which is re-introduced into engine, carries out second-time burning, advantageously reduces pollution in this way, this mode be exhaust gas again
Circulating technology.
Oxygen content is extremely low in the gas that internal combustion engine is discharged after combustion does not have even, after this discharge gas is mixed with air-breathing
Oxygen concentration in air-breathing can be made to reduce, therefore following phenomenon can be generated:
Oxygen content more lower than atmosphere (highest) temperature in burning can reduce, and can inhibit the generation of nitrogen oxides (NOx).
When ignition temperature reduces, the thermal energy diverging of cylinder and combustion chamber wall surface, piston face can be reduced, in addition because damaging caused by thermal dissociation
Mistake also has and reduces slightly.Its sub-load of fuel oil engine be cylinder in non-EGR in order to provide equivalent amount of oxygen (in order to
Obtain the power output of same axis), it is therefore desirable to throttle is opened greatly, lower, fuel consumption is lost in as a result oil suction when air-breathing (throttle)
Rate can improve.When this is the oxygen reduction that piston sucks under one stroke, it can add as used small air displacement engine to adopt down
Speed effect the same when advancing.The regurgitation volume of EGR is according to being up to 15% under the situation (in inspiratory capacity) of fuel oil engine, and idling
When with can then stop when high load.With the lesser large-sized diesel vehicle of engine output power from the point of view of vehicle weight, engine load is higher, is
Can reach capacity standard also often will use EGR technology.
Utility model content
The purpose of the utility model is to provide a kind of tail gas clean-up cyclic processing devices of gas engine.
In order to achieve the above object, the tail gas clean-up for providing a kind of gas engine in one embodiment of the utility model follows
Ring processing unit, including air inlet pipeline and gas exhaust piping；
Air filter, electronic throttle, compressor, cooler, throttle body and air inlet discrimination are provided on air inlet pipeline
Pipe；The inlet manifold of inlet manifold connect with throttle body, and air intake branch is connect with each cylinder body of engine；
Exhaust manifold and triple valve are provided on gas exhaust piping, two outlets of triple valve are connected separately with offgas duct and follow
Endless tube is provided with ternary catalyzing unit in offgas duct；Cooler and EGR valve are installed on circulation pipe；
Cooler includes cooler casing, and the both ends of cooler casing are provided with first flange disk, first flange disk it is interior
Side is provided with buffering pipeline section, buffers and is provided with undulatory condenser pipe on the inside of pipeline section, is provided on cooler casing and cooling
The condensing water inlet pipe and condensating water outlet tube that device enclosure interior communicates；
Inlet manifold includes mixing tube, the inlet manifold with flange and several air intake branches, EGR air inlet pipe, EGR air inlet
The outlet end of pipe is communicated with inlet manifold, and the outlet end that flange and EGR valve are provided on input end connects, EGR valve into
Mouth end and the outlet end of cooler pass through pipeline and connect.
Preferably, check valve, gas flow sensor and temperature sensor are installed on circulation pipe.
Preferably, carburetor is provided on air inlet pipeline.
Preferably, check valve is provided on gas exhaust piping.
Preferably, cooler is internally provided with temperature sensor.
In conclusion the utility model has the advantage that
Portion in gas exhaust piping can be entered circulation pipe by triple valve by the processing system of the utility model, be followed
The exhaust gas of endless tube is directly connect with EGR air inlet pipe after EGR valve, and exhaust gas is allowed to enter directly into exhaust manifold, compared to useless
Gas, which enters air inlet pipeline, can reduce influence of the exhaust gas to air inlet pipeline, play the role of circular treatment；Gas exhaust piping simultaneously
In remaining exhaust gas by ternary catalyzing unit processing heel row remove, play catharsis.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model one embodiment；
Fig. 2 is the schematic diagram of inlet manifold in the utility model one embodiment；
Fig. 3 is the schematic diagram of cooler in the utility model one embodiment.
Wherein, 1, air inlet pipeline；2, gas exhaust piping；3, air filter；4, electronic throttle；5, carburetor；6, it calms the anger
Machine；7, cooler；8, throttle body；9, inlet manifold；10, exhaust manifold；11, triple valve；12, ternary catalyzing unit；13, cooling
Device；14, EGR valve；15, mixing tube；16 inlet manifolds；17, air intake branch；18, EGR air inlet pipe；20, first flange disk；21,
Buffer pipeline section；22, condenser pipe；23, circulation pipe.
Specific embodiment
The utility model provides a kind of tail gas clean-up cyclic processing device of gas engine, including 1 He of air inlet pipeline
Gas exhaust piping 2；Air inlet pipeline is the pipeline that air and atomized fuel are sent into engine, and gas exhaust piping is the tail gas row that will be generated
Pipeline out.
Be provided on air inlet pipeline air filter 3, electronic throttle 4, compressor 6, cooler 7, throttle body 8 and into
Gas manifold 9；The inlet manifold of inlet manifold connect with throttle body, and air intake branch is connect with each cylinder body of engine.
The inlet manifold 16 of inlet manifold 10 connect with throttle body, and air intake branch 17 is connect with each cylinder body of engine.It is empty
Air filter purified treatment air, carburetor can additionally be added after air filter, then add electronic throttle
Flow is adjusted, the mixture of fuel-air temperature after the increase of compressor improves, it is therefore desirable to reduce temperature by cooler
Mixed gas using throttle body is sent into inlet manifold after reducing by degree, temperature, allows the outlet and inlet manifold of throttle body
Inlet manifold's connection, mixed gas is sent into each cylinder by the air intake branch of inlet manifold burns.
Exhaust manifold 10 and triple valve 11 are provided on gas exhaust piping, exhaust manifold is connect with engine, on exhaust manifold
Check valve can be set for avoiding backflowing.
Two outlets of triple valve are connected separately with offgas duct and circulation pipe, and offgas duct is that most of tail gas is discharged
Pipeline, ternary catalyzing unit 12 can carry out purified treatment to exhaust gas.Circulation pipe is that partial tail gas is recycled into inlet manifold
Pipeline.
Cooler 13 and EGR valve 14 are installed, the exhaust gas temperature entered in circulation pipe is higher, therefore logical on circulation pipe
Subcooler is cooled down, and the amount of entrance and the opportunity of entrance are adjusted by EGR valve.Before cooler is mounted on EGR valve
The middle section of circulation pipe is arranged in end, EGR valve.
Cooler includes cooler casing, and the both ends of cooler casing are provided with first flange disk 20, pass through first flange
Disk and piping connection.Be provided on the inside of first flange disk buffering pipeline section 21, buffer be provided on the inside of pipeline section it is undulatory cold
Pipe 22 is coagulated, is provided with the condensing water inlet pipe and condensating water outlet tube communicated with inside cooler casing on cooler casing.Into
Fluid in air pipe or gas exhaust piping is passed in and out from condenser pipe, and condensed water is cooled down along condensation pipe outer wall.
Inlet manifold includes mixing tube 15, the inlet manifold 16 with flange and several air intake branches 17, EGR air inlet pipe
The outlet end of 18, EGR air inlet pipe is communicated with inlet manifold, and the outlet end that flange and EGR valve are provided on input end connects, can
With the flanged joint directly with the outlet end of EGR valve, can also be connect by the pipeline with flange with EGR valve, EGR valve
The input end of door and the outlet end of cooler are connected by pipeline.
The exhaust gas of circulation pipe enters EGR air inlet pipe after EGR valve, and has respectively entered out of inlet manifold each
It in air intake branch, enters finally into engine and is handled, realize circular treatment.
In the optimal enforcement example of the utility model, check valve, gas flow sensor and temperature are installed on circulation pipe and passed
Sensor.Check valve is provided on gas exhaust piping.Cooler is internally provided with temperature sensor.
Although being described in detail in conjunction with attached drawing to specific embodiment of the present utility model, should not be construed as pair
The restriction of the protection scope of this patent.In range described by claims, those skilled in the art are without creative labor
The dynamic various modifications that can be made and deformation still belong to the protection scope of this patent.
Claims (1)
1. a kind of tail gas clean-up cyclic processing device of gas engine, it is characterised in that: including air inlet pipeline and gas exhaust piping；
Air filter, electronic throttle, compressor, cooler, throttle body and inlet manifold are provided on the air inlet pipeline；Into
The inlet manifold of gas manifold connect with throttle body, and air intake branch is connect with each cylinder body of engine；
Exhaust manifold and triple valve are provided on the gas exhaust piping, two outlets of triple valve are connected separately with offgas duct and follow
Endless tube is provided with ternary catalyzing unit in offgas duct；Cooler and EGR valve are installed on the circulation pipe；
The cooler includes cooler casing, and the both ends of cooler casing are provided with first flange disk, first flange disk it is interior
Side is provided with buffering pipeline section, buffers and is provided with undulatory condenser pipe on the inside of pipeline section, is provided on cooler casing and cooling
The condensing water inlet pipe and condensating water outlet tube that device enclosure interior communicates；
The inlet manifold includes mixing tube, the inlet manifold with flange and several air intake branches, EGR air inlet pipe, the EGR
The outlet end of air inlet pipe is communicated with inlet manifold, and the outlet end that flange and EGR valve are provided on the input end of EGR air inlet pipe connects
It connects, the input end of EGR valve and the outlet end of cooler are connected by pipeline；Check valve is provided on the gas exhaust piping；Institute
That states cooler is internally provided with temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604460.9U CN208281086U (en) | 2018-04-26 | 2018-04-26 | A kind of tail gas clean-up cyclic processing device of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604460.9U CN208281086U (en) | 2018-04-26 | 2018-04-26 | A kind of tail gas clean-up cyclic processing device of gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281086U true CN208281086U (en) | 2018-12-25 |
Family
ID=64752249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820604460.9U Expired - Fee Related CN208281086U (en) | 2018-04-26 | 2018-04-26 | A kind of tail gas clean-up cyclic processing device of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281086U (en) |
-
2018
- 2018-04-26 CN CN201820604460.9U patent/CN208281086U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 |