CN206617210U - Marine diesel SCR urea injection system - Google Patents
Marine diesel SCR urea injection system Download PDFInfo
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- CN206617210U CN206617210U CN201621481149.7U CN201621481149U CN206617210U CN 206617210 U CN206617210 U CN 206617210U CN 201621481149 U CN201621481149 U CN 201621481149U CN 206617210 U CN206617210 U CN 206617210U
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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
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- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
A kind of marine diesel SCR urea injection system, include pump group unit, air element and metering units, the system can automatically control urea injecting quantity and injection pressure, urea liquid is fully mixed with nitrogen oxides, realize the abundant reaction of reducing agent and catalyst.Ensure the nitrogen oxides NO of marine dieselXThe reactor normal work of emission-reducing system.Make the pressure remained constant of urea liquid in pipeline, it is ensured that the diesel engine stability that SCR system is run under different working conditions.When SCR system is out of service, urea injection system can be purged, the blocking of pipeline and nozzle is prevented, extends the service life of spraying system.
Description
Technical field
The utility model is related to marine diesel, particularly a kind of marine diesel NOXEmission reduction device selective catalysis is also
Urea injection system in former (Selective Catalyst Reduction, hereinafter referred to as SCR) system.
Background technology
The clear and definite marine diesels of IMO need strict implement Tier III Abgasgesetz, thus marine diesel from 2016
Exhaust emissions in nitrogen oxides (NOX) amount must have certain control in ECA regions.
SCR (SCR) is a kind of skill for the discharged nitrous oxides that can be effectively reduced in diesel engine flue gas
Art, therefore application is more and more extensive.
SCR technology main technical principle is：Under excess oxygen, done using urea by being pyrolyzed or hydrolyzing the ammonia of generation
For reducing agent, occur catalytic reduction reaction with nitrogen oxides under catalyst action, convert nitrogen oxides to nitrogen and water.Urine
Element is originated as reducing agent, and certain injection pressure enables it to be fully atomized in injection, and ammonia, and production are produced to greatest extent
Raw ammonia can be mixed sufficiently with nitrogen oxides, improve reaction efficiency.
SCR system is in the process of running, it is necessary to by the regulation of urea control system, make the emitted dose and injection pressure of urea
Power is with NO in the load and tail gas of diesel engineXAmount change and change so that system stable operation under Tier III patterns.
After SCR system stopping, urea injection system will can carry out air purging to spraying system, prevent spray nozzle clogging.Therefore,
SCR system is higher to the automaticity of urea injection system and stability requirement.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art selectively to urge there is provided a kind of marine diesel
Change reduction urea injection system, the system can automatically control urea injecting quantity and injection pressure, make urea liquid sufficiently with
Nitrogen oxides is mixed, and realizes the abundant reaction of reducing agent and catalyst.Ensure the nitrogen oxides NO of marine dieselXEmission-reducing system
Reactor normal work.
What the purpose of this utility model was realized in：
A kind of marine diesel SCR urea injection system, its feature is to include pump group unit, air
Unit and metering units：
Described pump group unit is included：It is 1st hand stop valve, the 2nd hand stop valve, the 5th hand stop valve, the 6th manual
Stop valve, the 9th hand stop valve, the 10th hand stop valve, the 1st check valve, pressure-control valve, the 1st filter, the first pump, the 1st
Gauge valve, the 2nd gauge valve, the 1st pressure gauge and the 2nd pressure gauge；
Described air element is included：11st hand stop valve, the 12nd hand stop valve, the 1st magnetic valve, the 2nd electromagnetism
Valve, the 1st pressure regulator valve, the 2nd pressure regulator valve, the 3rd filter, the 3rd gauge valve, the 4th gauge valve, the 3rd pressure gauge and the 4th pressure gauge；
Described metering units are included：13rd hand stop valve, the 14th hand stop valve, the 15th hand stop valve, the 16th
Hand stop valve, the 17th hand stop valve, the 3rd magnetic valve, the 4th magnetic valve, the 5th magnetic valve, the 3rd check valve, the 4th check valve,
5th check valve, the 4th filter, the 5th filter and the 3rd pressure regulator valve；
The annexation of above-mentioned component is as follows：
The 1st described hand stop valve, the 1st filter, the 2nd hand are sequentially connected by pipeline from urea liquid intake line
After dynamic stop valve, the 5th hand stop valve, the 1st pump, the 1st check valve, the 6th hand stop valve, the 10th hand stop valve, then with institute
14th hand stop valve of the metering units stated is connected, the 2nd described hand stop valve and the 5th described hand stop valve it
Between pipeline on be connected through the 1st described gauge valve with the 1st described pressure gauge；In the 5th described hand stop valve and the 1st
Pressure sensor is connected with pipeline between pump, pressure is connected with the pipeline between the 1st described pump and the 1st check valve
Through described in force snesor and temperature sensor, the pipeline between the 6th described hand stop valve and the 10th hand stop valve
The 2nd gauge valve be connected with the 2nd described pressure gauge, the pipe between the 6th described hand stop valve and the 10th hand stop valve
Road is also associated with pipeline, and the pipeline is connected to urea tank through described pressure-control valve, the 9th hand stop valve successively；
The 11st described hand stop valve, the 3rd filter, the 1st tune are sequentially connected by pipeline from compressed air intake line
Pressure valve, the 1st magnetic valve, the 12nd hand stop valve, the 2nd magnetic valve are connected with the 13rd hand stop valve of described metering units,
Pipeline between the 1st described pressure regulator valve and the 1st magnetic valve is connected through the 3rd described gauge valve with the 3rd described pressure gauge,
Pressure sensor is connected with the pipeline of the 2nd described magnetic valve and the described metering units of entrance；Described compressed air
Pipeline also branch is connected through the 2nd pressure regulator valve with the 2nd described magnetic valve, in the 2nd described pressure regulator valve and the 2nd described magnetic valve
Pipeline in be connected by the 4th gauge valve with the 4th described pressure gauge,
Described metering units have two-way：
Be connected the 13rd hand stop valve all the way, being sequentially connected by pipeline, the 4th filter, the 3rd with described air element
Pressure regulator valve, the 3rd magnetic valve, the 14th hand stop valve and the 5th check valve are constituted, and the output end of described the 5th check valve is by the road
It is connected with urea nozzle, pressure sensor is provided with the pipeline of described the 3rd pressure regulator valve and the 3rd magnetic valve；
Another road is connected with described pump group unit, the 15th hand stop valve that is sequentially connected by pipeline, the 5th filter, the 5th
Magnetic valve, the 16th hand stop valve, the 17th hand stop valve and the 4th check valve are constituted, and the output end of the 4th described check valve is passed through
Pipeline is connected with urea nozzle, and pressure sensing is provided with the pipeline between the 5th described magnetic valve and the 16th hand stop valve
Device；
There are the first manual stop valve, the 1st filter, the second hand stop valve with being sequentially connected in described pump group unit
Pipeline spare duct each other in parallel：The pipeline is by being sequentially connected the 3rd hand stop valve, the 2nd filter and the 4th hand stop valve structure
Into.
In described pump group unit also have be sequentially connected described in the 7th hand stop valve, the 2nd pump, the 2nd check valve
With the pipeline of the 8th hand stop valve and described the 5th hand stop valve, the 1st pump, the 1st check valve and the 6th hand stop valve according to
Secondary connected pipeline is standby each other, pressure sensor is provided with the pipeline of described the 7th hand stop valve and the 2nd pump, in institute
Pipeline between the 2nd pump stated and the 2nd check valve is provided with pressure sensor and temperature sensor.
The utility model marine diesel SCR urea injection systems, in SCR system running, by SCR control system
The output flow of urea pump in urea injection system is adjusted, the urea liquid flowed out in pump is kept one by pressure-control valve
Fixed pressure flows into metering units, and excessive urea liquid is returned in urea tank.Air element and metering units then basis
The demand of urea adjusts the injection pressure of air, so as to ensure the abundant atomization of urea liquid., can after SCR system stopping
To be purged by air element and metering units to the injection line of the system, prevent residual after spraying system long-play
The remaining urea crystals in urea pipe make pipeline blockage.
The utility model can also in real time control the injection flow of urea according to main frame waste gas discharge capacity, it is ensured that waste gas and urine
Plain solution fully reacts under different operating modes.
The characteristics of the utility model：Urea injecting quantity and sky can be adjusted in real time according to main unit load and waste gas discharge capacity automatically
Gas blowout injection pressure, and make the pressure remained constant of urea liquid in pipeline, it is ensured that diesel engine SCR system under different working conditions
The stability of operation.When SCR system is out of service, urea injection system can be purged, the blocking of pipeline and nozzle is prevented, prolongs
The service life of long spraying system.
Brief description of the drawings
Fig. 1 is the utility model marine diesel NOXThe signal of emission reduction device SCR urea injection system most preferred embodiment
Figure.
Fig. 2 is the schematic diagram of the utility model pump group unit most preferred embodiment
Fig. 3 is the schematic diagram of the utility model air element most preferred embodiment
Fig. 4 is the schematic diagram of the utility model metering units most preferred embodiment
Embodiment
The utility model is described in further detail with most preferred embodiment below in conjunction with the accompanying drawings, in the hope of apparent clear reason
Solve structure of the present utility model and use process, but protection domain of the present utility model can not be limited with this.
Fig. 1 is the utility model marine diesel NOXThe signal of emission reduction device SCR urea injection system most preferred embodiment
Figure.As seen from the figure, the utility model marine diesel SCR urea injection system, includes pump group unit, air
Unit and metering units：
Described pump group unit is included：1st hand stop valve V01, the 2nd hand stop valve V02, the 3rd hand stop valve
V03, the 4th hand stop valve V04, the 5th hand stop valve V05, the 6th hand stop valve V06, the 7th hand stop valve V07, the 8th
Hand stop valve V08, the 9th hand stop valve V09, the 10th hand stop valve V10, the 1st check valve V13, the 2nd check valve V14, pressure
Force control valve V15, the 1st filter F01, the 2nd filter F02, the first pump P01, the second pump P02, the 1st gauge valve V11, the 2nd gauge valve
V12, the 1st pressure gauge B01 and the 2nd pressure gauge B02；
Described air element is included：11st hand stop valve V201, the 12nd hand stop valve V202, the 1st magnetic valve
V207, the 2nd magnetic valve V208, the 1st pressure regulator valve V203, the 2nd pressure regulator valve V204, the 3rd filter F201, the 3rd gauge valve V205, the 4th
Gauge valve V206, the 3rd pressure gauge B201 and the 4th pressure gauge B202；
Described metering units are included：13rd hand stop valve V301, the 14th hand stop valve V302, the 15th manual shutoff
Valve V303, the 16th hand stop valve V304, the 17th hand stop valve V305, the 3rd magnetic valve V307, the 4th magnetic valve V308, the 5th
Magnetic valve V309, the 3rd check valve V310, the 4th check valve V311, the 5th check valve V312, the 4th filter F301, the 5th filter F302
With the 3rd pressure regulator valve V306；
The annexation of above-mentioned component is as follows：
From urea liquid intake line by pipeline be sequentially connected the 1st described hand stop valve V01, the 1st filter F01,
2nd hand stop valve V02, the 5th described hand stop valve V05, the 1st pump P01, the 1st check valve V13, the 6th hand stop valve
After V06, the 10th hand stop valve V10, then it is connected with the 14th hand stop valve V302 of described metering units, described
On pipeline between 2nd hand stop valve V02 and the 5th described hand stop valve V05 through the 1st described gauge valve V11 with
The 1st described pressure gauge B01 is connected；Pressure is connected with pipeline between the 5th described hand stop valve V05 and the 1st pump P01
Pressure sensor is connected with force snesor, the pipeline between the 1st described pump P01 and the 1st check valve V13 and temperature is passed
Through the 2nd described gauge valve in sensor, the pipeline between the 6th described hand stop valve V06 and the 10th hand stop valve V10
V12 is connected with the 2nd described pressure gauge B02, between the 6th described hand stop valve V06 and the 10th hand stop valve V10
Pipeline be also associated with pipeline, the pipeline is connected to urea through described pressure-control valve V15, the 9th hand stop valve V09 successively
Tank；There are first manual stop valve V01, the 1st filter F01, the second manual shutoff with being sequentially connected in described pump group unit
Valve V02 pipelines spare duct each other in parallel：The pipeline is by being sequentially connected the 3rd hand stop valve V03, the 2nd filter F02 and the 4th
Hand stop valve V04 is constituted.
Also have in described pump group unit be sequentially connected described in the 7th hand stop valve V07, the 2nd pump P02, the 2nd single
To valve V14 and the 8th hand stop valve V08 pipeline and the 5th described hand stop valve V05, the 1st pump P01, the 1st check valve
The pipeline that V13 and the 6th hand stop valve V06 are sequentially connected is standby each other, in the 7th described hand stop valve V07 and the 2nd pump
P02 pipeline, which is provided with pressure sensor, the pipeline between the 2nd described pump P02 and the 2nd check valve V14, is provided with pressure
Sensor and temperature sensor.
The 11st described hand stop valve V201, the 3rd filter are sequentially connected by pipeline from compressed air intake line
F201, the 1st pressure regulator valve V203, the 1st magnetic valve V207, the 12nd hand stop valve V202, the 2nd magnetic valve V208, then with it is described
13rd hand stop valve V301 of metering units is connected, the pipeline between the 1st described pressure regulator valve V203 and the 1st magnetic valve V207
It is connected through the 3rd described gauge valve V205 with the 3rd described pressure gauge B201, in the 2nd described magnetic valve V208 and enters institute
Pressure sensor is connected with the pipeline for the metering units stated；Described compressed air line also has branch pipeline, branch pipeline warp
2nd pressure regulator valve V204 is connected with the 2nd described magnetic valve V208, in the 2nd described pressure regulator valve V204 and the 2nd described electromagnetism
It is connected in valve V208 pipeline by the 4th gauge valve V206 with the 4th described pressure gauge B202,
Described metering units have two-way：
Be connected the 13rd hand stop valve V301 all the way, being sequentially connected by pipeline, the 4th filter with described air element
Device F301, the 3rd pressure regulator valve V306, the 3rd magnetic valve V307, the 14th hand stop valve V302 and the 5th check valve V311 are constituted, described
The 5th check valve V311 output end be connected by the road with urea nozzle, in the 3rd described pressure regulator valve V306 and the 3rd magnetic valve
V307 pipeline is provided with pressure sensor；
Another road is connected with described pump group unit, the 15th hand stop valve V303 that is sequentially connected by pipeline, the 5th filter
Device F302, the 5th magnetic valve V309, the 16th hand stop valve V304, the 17th hand stop valve V305 and the 4th check valve V312 structures
Into the output end of the 4th described check valve V312 is connected with urea nozzle by the road, in the 5th described magnetic valve V309 and
Pressure sensor is provided with pipeline between 16 hand stop valve V304；
System working condition is as follows：
Whole urea injection system is divided into two-way, is all the way compressed air, is all the way urea liquid.
Compressed air is entered by air element, by metering units flow nozzle
Urea liquid is flowed into by pump group unit, enters nozzle by metering units, while the compressed air flowed into makes urea
Solution forms atomizing effect in nozzle.
1, the course of work of compressed air all the way：
A, when urea is injected in working condition, V201 and V202 are to open, and V207, V208, V307 are opened by control system
Open, but V308 is closed mode.Compressed air is flowed into through filter F201 (filtering moisture) and pressure regulator valve V203 (coarse adjustment) and measured
Unit.
Pressure after B, pressure gauge B201 measurement pressure regulator valve, V205 plays a protective role, and prevents the excessive infringement pressure of pressure
Table.
C, the compressed air flowed out by air element (prevents pressure through F301, pressure regulator valve V306 (fine tuning) and check valve V311
Contracting air return) flow nozzle.
D, before urea injection work and after being stopped, SCR control system closes V207, V307, and opens
V308, now, air flow into metering units by the roads of V204 mono-, then by check valve V310 flow nozzles, realize to nozzle
Cleaning function, prevents nozzle Crystallization Plugging.
2, the urea liquid course of work all the way：
A, during work, V01, V02, V05, V06, V09, V10, V303, V304, V305 and V309 are open modes.Urea
Solution by filter F 01 filter after enter pump in, by check valve V13 flow into metering units.
Pressure after the pressure that B, pressure gauge B01 measurement enter before pump, B02 measurement pumps, V11 and V12 play protection
Effect, prevents the excessive infringement pressure gauge of pressure.
C, when showing that pressure exceedes limit value in B02, V15 is automatically opened up, and is shunted to reduce excessive pressure, it is unnecessary to make
Urea liquid flow back in urea storage tank.
D, the urea liquid flowed out by pump group unit through filter F302, magnetic valve V309 (by control system control) and
Check valve V312 (preventing urea liquid from flowing back) enters nozzle.
E, pump P01 receive SCR control system signal, adjust power to control the flow of urea liquid.
F, when pump P01 is out of order in pump group unit, then starts P02, F02 and P02 and is used as extension wire.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.Experiment
Show, the utility model can regulation urea injecting quantity sprays pressure with air in real time automatically according to main unit load and waste gas discharge capacity
Power, and make the pressure remained constant of urea liquid in pipeline, it is ensured that it is steady that diesel engine SCR system under different working conditions is run
It is qualitative.When SCR system is out of service, urea injection system can be purged, the blocking of pipeline and nozzle, extension injection system is prevented
The service life of system.
It should be understood by those skilled in the art that, the utility model is not restricted to the described embodiments, above-described embodiment and
Simply illustrate principle of the present utility model described in specification, on the premise of the utility model spirit and scope are not departed from,
The utility model also has various adjustment, changes and improvements, and these adjustment, changes and improvements are without departing from base of the present utility model
It shall fall within the case of present principles and principal character in the range of claimed the utility model.The utility model requires to protect
Shield scope is limited by the accompanying claims.
Claims (3)
1. a kind of marine diesel SCR urea injection system, it is characterised in that include pump group unit, air list
Member and metering units：
Described pump group unit is included：1st hand stop valve (V01), the 2nd hand stop valve (V02), the 5th hand stop valve
(V05), the 6th hand stop valve (V06), the 9th hand stop valve (V09), the 10th hand stop valve (V10), the 1st check valve
(V13), pressure-control valve (V15), the 1st filter (F01), the first pump (P01), the 1st gauge valve (V11), the 2nd gauge valve (V12),
1st pressure gauge (B01) and the 2nd pressure gauge (B02)；
Described air element is included：11st hand stop valve (V201), the 12nd hand stop valve (V202), the 1st magnetic valve
(V207), the 2nd magnetic valve (V208), the 1st pressure regulator valve (V203), the 2nd pressure regulator valve (V204), the 3rd filter (F201), the 3rd instrument
Valve (V205), the 4th gauge valve (V206), the 3rd pressure gauge (B201) and the 4th pressure gauge (B202)；
Described metering units are included：13rd hand stop valve (V301), the 14th hand stop valve (V302), the 15th manual shutoff
Valve (V303), the 16th hand stop valve (V304), the 17th hand stop valve (V305), the 3rd magnetic valve (V307), the 4th magnetic valve
(V308), the 5th magnetic valve (V309), the 3rd check valve (V310), the 4th check valve (V311), the 5th check valve (V312), the 4th filter
Device (F301), the 5th filter (F302) and the 3rd pressure regulator valve (V306)；
The annexation of above-mentioned component is as follows：
From urea liquid intake line by pipeline be sequentially connected the 1st described hand stop valve (V01), the 1st filter (F01),
It is 2nd hand stop valve (V02), the 5th described hand stop valve (V05), the 1st pump (P01), the 1st check valve (V13), the 6th manual
After stop valve (V06), the 10th hand stop valve (V10), then the 14th hand stop valve (V302) phase with described metering units
Even, through described the on the pipeline between the 2nd described hand stop valve (V02) and the 5th described hand stop valve (V05)
1 gauge valve (V11) is connected with the 1st described pressure gauge (B01)；In the 5th described hand stop valve (V05) and the 1st pump (P01)
Between pipeline in be connected with pressure sensor, connect in the pipeline between the 1st described pump (P01) and the 1st check valve (V13)
Be connected to pressure sensor and temperature sensor, the 6th described hand stop valve (V06) and the 10th hand stop valve (V10) it
Between pipeline in be connected through the 2nd described gauge valve (V12) with the 2nd described pressure gauge (B02), the described the 6th manually cut
Only the pipeline between valve (V06) and the 10th hand stop valve (V10) is also associated with pipeline, and the pipeline is successively through described pressure control
Valve (V15) processed, the 9th hand stop valve (V09) are connected to urea tank；
The 11st described hand stop valve (V201), the 3rd filter are sequentially connected by pipeline from compressed air intake line
(F201), the 1st pressure regulator valve (V203), the 1st magnetic valve (V207), the 12nd hand stop valve (V202), the 2nd magnetic valve (V208),
It is connected again with the 13rd hand stop valve (V301) of described metering units, the 1st described pressure regulator valve (V203) and the 1st magnetic valve
(V207) pipeline between is connected through the 3rd described gauge valve (V205) with the 3rd described pressure gauge (B201), described
Pressure sensor is connected with the pipeline of 2 magnetic valves (V208) and the described metering units of entrance；Described compressed air line
Also branch pipeline, the branch pipeline is connected through the 2nd pressure regulator valve (V204) with the 2nd described magnetic valve (V208), is adjusted the described the 2nd
Pressure valve (V204) in the pipeline of the 2nd described magnetic valve (V208) with passing through the 4th gauge valve (V206) and the 4th described pressure gauge
(B202) it is connected,
Described metering units have two-way：
It is connected with described air element all the way, the 13rd hand stop valve (V301), the 4th filter being sequentially connected by pipeline
(F301), the 3rd pressure regulator valve (V306), the 3rd magnetic valve (V307), the 14th hand stop valve (V302) and the 5th check valve (V311)
Constitute, the output end of the 5th described check valve (V311) is connected with urea nozzle by the road, in the 3rd described pressure regulator valve
(V306) and the 3rd magnetic valve (V307) pipeline be provided with pressure sensor；
Another road is connected with described pump group unit, the 15th hand stop valve (V303), the 5th filter being sequentially connected by pipeline
(F302), the 5th magnetic valve (V309), the 16th hand stop valve (V304), the 17th hand stop valve (V305) and the 4th check valve
(V312) constitute, the output end of the 4th described check valve (V312) is connected with urea nozzle by the road, in the 5th described electromagnetism
Pressure sensor is provided with pipeline between valve (V309) and the 16th hand stop valve (V304).
2. marine diesel SCR urea injection system according to claim 1, it is characterised in that described
Pump group unit in also have and the first manual stop valve (V01), the 1st filter (F01), the second hand stop valve that are sequentially connected
(V02) pipeline spare duct each other in parallel：The pipeline by be sequentially connected the 3rd hand stop valve (V03), the 2nd filter (F02) and
4th hand stop valve (V04) is constituted.
3. urea injection system according to claim 1 or 2, it is characterised in that also have in described pump group unit with successively
Connected the 7th hand stop valve (V07), the 2nd pump (P02), the pipeline of the 2nd check valve (V14) and the 8th hand stop valve (V08)
With described the 5th hand stop valve (V05), the 1st pump (P01), the 1st check valve (V13) and the 6th hand stop valve (V06) successively
Connected pipeline is standby each other, and pressure sensing is provided with the pipeline of described the 7th hand stop valve (V07) and the 2nd pump (P02)
Pressure sensor and temperature sensor are provided with device, the pipeline between the 2nd described pump (P02) and the 2nd check valve (V14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481149.7U CN206617210U (en) | 2016-12-30 | 2016-12-30 | Marine diesel SCR urea injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481149.7U CN206617210U (en) | 2016-12-30 | 2016-12-30 | Marine diesel SCR urea injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617210U true CN206617210U (en) | 2017-11-07 |
Family
ID=60229711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481149.7U Active CN206617210U (en) | 2016-12-30 | 2016-12-30 | Marine diesel SCR urea injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617210U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104917A (en) * | 2017-12-31 | 2018-06-01 | 中船动力研究院有限公司 | A kind of Urea-SCR spraying systems |
| CN112177719A (en) * | 2020-09-21 | 2021-01-05 | 南京依柯卡特排放技术股份有限公司 | Tail gas purification control device and method for marine diesel engine |
| CN112325158A (en) * | 2020-09-29 | 2021-02-05 | 湖南航天磁电有限责任公司 | Automatic liquid supply system for ferrite press molding saponification liquid |
-
2016
- 2016-12-30 CN CN201621481149.7U patent/CN206617210U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104917A (en) * | 2017-12-31 | 2018-06-01 | 中船动力研究院有限公司 | A kind of Urea-SCR spraying systems |
| CN112177719A (en) * | 2020-09-21 | 2021-01-05 | 南京依柯卡特排放技术股份有限公司 | Tail gas purification control device and method for marine diesel engine |
| CN112325158A (en) * | 2020-09-29 | 2021-02-05 | 湖南航天磁电有限责任公司 | Automatic liquid supply system for ferrite press molding saponification liquid |
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Effective date of registration: 20190812 Address after: 200129 Pudong Road, Shanghai, No. 346, building 2851, No. Co-patentee after: CSSC-MES Diesel Co., Ltd. Patentee after: Hudong Heavy Mechine Co., Ltd. Address before: 200129 Pudong Road, Shanghai, No. 346, building 2851, No. Patentee before: Hudong Heavy Mechine Co., Ltd. |
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