CN207634147U - A kind of ship power plant waste gases tapping equipment using HP-SCR technologies - Google Patents
A kind of ship power plant waste gases tapping equipment using HP-SCR technologies Download PDFInfo
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- CN207634147U CN207634147U CN201721583155.8U CN201721583155U CN207634147U CN 207634147 U CN207634147 U CN 207634147U CN 201721583155 U CN201721583155 U CN 201721583155U CN 207634147 U CN207634147 U CN 207634147U
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- scr
- urea
- ship power
- waste gases
- power plant
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Abstract
The utility model is related to a kind of ship power plant waste gases tapping equipments using HP SCR technologies, belong to ship power apparatus field.The exhaust gas outlet side of the device ship power driving equipment is connected by exhaust pipe with the inlet end of HP SCR reactors；The outlet side of HP SCR reactors is connected by exhaust pipe with the exhaust gas inlet end of the booster of ship power driving equipment；The flue gas leading section of HP SCR reactors and exhaust gas outlet side is equipped with urea and sprays mixed cell.Ship power plant waste gases tapping equipment provided by the utility model using HP SCR technologies meets environmental requirement.Meet modern ships power and exhaust gas discharge TIII requirements.The Efficient Conversion of NOX can be realized using HP SCR technologies, highest transformation efficiency is up to 95% or more.
Description
Technical field
The utility model is related to a kind of ship power plant waste gases tapping equipments using HP-SCR technologies, and it is dynamic to belong to ship
Power apparatus field.
Background technology
Environmental issue has obtained the attention in the whole world at present, however the nitrogen oxidation that global ship power diesel engine discharges every year
Object（Nox）Account for about 10%, the Nox that artificial Nox is always discharged and form photochemical fog in adjacent ground surface, forms acid mist acid rain
Principal element, lung and cardiac muscle to human body have very strong toxic action, so the requirement to the discharge of marine main engine exhaust gas is also more next
It is stringenter, how to reach in green emissions, has become the important driving force for promoting marine diesel optimization design at present.
Utility model content
The utility model provides the ship power power-equipment exhaust gas discharge using HP-SCR technologies against the above deficiency
Device.
The utility model adopts the following technical solution：
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR, including dynamic ship power driving
Equipment further includes HP-SCR reactors, exhaust pipe；The exhaust gas outlet side of the ship power driving equipment passes through flue gas leading
Road is connected with the inlet end of HP-SCR reactors；The outlet side of HP-SCR reactors is driven by exhaust pipe and ship power
The exhaust gas inlet end of the booster of equipment is connected；HP-SCR reactors and the flue gas leading section of exhaust gas outlet side are sprayed equipped with urea
Penetrate mixed cell.
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR technologies, urea spray
It penetrates mixed cell upper end to be ejected into urea in urea injection mixed cell with mist equipped with injection pipe injection pipe, in hot gas
Ammonification and carbon dioxide are decomposed in stream, and under the action of SCR catalyst in reactor, occur with the nitrogen oxide NOx in exhaust gas
Reaction, is reduced into nitrogen and water.
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR technologies, the injection pipe
It is interior to be equipped with nozzle and static mixer.
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR technologies, the injection pipe
It is connected with urea feeding mechanism；Urea feeding mechanism includes transfer pump, urea storage tank, urea supply line；The transfer pump is logical
It crosses urea supply line urea storage tank is connected in injection pipe.
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR technologies, urea storage
Tank is remained above with the temperature in urea supply line equal to 3 DEG C.
Ship power plant waste gases tapping equipment described in the utility model using HP-SCR technologies, the flue gas leading
Road is equipped with expansion joint.
Advantageous effect
Ship power plant waste gases tapping equipment provided by the utility model using HP-SCR technologies meets environmental protection and wants
It asks.
Ship power plant waste gases tapping equipment provided by the utility model using HP-SCR technologies meets modern ships
Power and exhaust gas discharge TIII requirements.
Ship power plant waste gases tapping equipment provided by the utility model using HP-SCR technologies utilizes HP-SCR skills
Art can realize the Efficient Conversion of NOX, and highest transformation efficiency is up to 95% or more.
Description of the drawings
Fig. 1 is the structural schematic diagram of the ship power plant waste gases tapping equipment of the HP-SCR technologies of the utility model；
Fig. 2 is the utility model device arrangement schematic diagram.
1 is ship power driving equipment in figure, and 2 be HP-SCR reactors, and 3 be exhaust pipe, and 4 is single for urea injection mixing
Member, 5 be expansion joint, and 6 be booster, and 7 be injection pipe, and 8 be air bottle, and 9 be urea supply unit, and 10 be urea dosing list
Member, 11 be urea cabin, and 12 be SCR system compressor, and 13 be exhaust/sealing unit, and 14 be air-conditioning unit, and 15 is anti-for SCR
Answer device（Band catalyst）.
Specific implementation mode
It is clearer for the purpose and technical solution that make the utility model embodiment, implement below in conjunction with the utility model
The attached drawing of example, is clearly and completely described the technical solution of the utility model embodiment.Obviously, described embodiment
It is a part of the embodiment of the utility model, instead of all the embodiments.Based on described the embodiments of the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of without creative work, belongs to this practicality
Novel protected range：
As shown in Figure 1：Using the ship power plant waste gases tapping equipment of HP-SCR technologies, including dynamic ship power driving
Equipment 1 further includes HP-SCR reactors 2, exhaust pipe 3；The exhaust gas outlet side of the dynamic ship power driving equipment 1 passes through
Exhaust pipe 3 is connected with the inlet end of HP-SCR reactors 2；The outlet side of HP-SCR reactors 2 passes through exhaust pipe 3 and ship
The exhaust gas inlet end of the booster 6 of oceangoing ship power drive device 1 is connected；The exhaust pipe 3 of HP-SCR reactors 2 and exhaust gas outlet side
Section is equipped with urea and sprays mixed cell 4.（HP-SCR is：It is installed on static mixer and the SCR reactions of turbocharger upstream
Device）
SCR technology is simply said it is reduces the nitrogen oxides in exhaust gas by chemical reaction process, and urea liquid is usual
As reducing agent, decompose ammonification and carbon dioxide in thermal current, NH3 again under the action of catalyst, with the nitrogen oxidation in exhaust gas
Object NO, NO2 react, and are reduced into nitrogen and water, specific equation is as follows：
(NH2)2CO + H2O → 2NH3 + CO2
NO+NO2+2NH3 → 2N2+3H2O
4NO+O2+4NH3 → 4N2+6H2O
2NO2+O2+4NH3 → 3N2+6H2O
SCR reaction unit band catalyst：Catalyst is the critical component of SCR system, and effect is restored with the NOx for reaching best
Rate.SCR application cellular catalysts.Bulk material intensity has higher durability, can bear thermal shock.Catalyst itself is
It, can Mars extinguishing by the Cellular Networks structure composition of 5 mesh.The exhaust vent end of ship power driving equipment 1 is equipped with booster
6。
4 upper end of urea injection mixed cell is equipped with 7 injection pipe 7 of injection pipe and urea is ejected into urea injection with mist
In mixed cell 4, and reacted with the exhaust gas in urea injection mixed cell 4.In order to ensure enough urea supplies, spraying
It penetrates and is provided with nozzle and static mixer in pipe.Control unit automatically controls feeder unit, and feeder unit is appropriate to nozzle supply
Urea liquid.In SCR debugging process, urea consumption will be compared with theoretical consumption.Urea dosing device
There is automatic cleaning function, can automatically be cleaned when SCR is out of service.
Urea liquid is transported to urea plant by urea feeding mechanism from storage tank.There are two pumps for urea feeding mechanism.One uses
One is standby.One urea supply unit is enough to provide urea liquid to entire SCR system.In view of the solidification point of 40% urea liquid,
Urea storage tank and the temperature of urea supply line must remain at 3 degree or more.
According to different operation modes, the isolating device between mixer and SCR reactors is mounted on SCR reactors
After sealing valve.
The ship power power-equipment exhaust emission device of HP-SCR technologies described in the utility model is tried in host factory
Vehicle workshop installs SCR reactors additional in host exhaust gas discharge end, and to treated, exhaust gas is sampled analysis；Practical shipment and
Real ship verification is carried out during the examination of sea, you can put into effect.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should
It is subject to the protection scope in claims.
Claims (6)
1. a kind of ship power plant waste gases tapping equipment using HP-SCR technologies, including dynamic ship power driving equipment（1）,
It is characterized in that：Further include HP-SCR reactors（2）, exhaust pipe（3）；The ship power driving equipment（1）Exhaust gas
Outlet side passes through exhaust pipe（3）With HP-SCR reactors（2）Inlet end be connected；HP-SCR reactors（2）Outlet side
Pass through exhaust pipe（3）With ship power driving equipment（1）Booster（6）Exhaust gas inlet end be connected；HP-SCR reactors
（2）With the exhaust pipe of exhaust gas outlet side（3）Section is equipped with urea and sprays mixed cell（4）.
2. the ship power plant waste gases tapping equipment according to claim 1 using HP-SCR technologies, it is characterised in that：
The urea sprays mixed cell（4）Upper end is equipped with injection pipe（7）Injection pipe（7）Urea is ejected into urea with mist
Spray mixed cell（4）It is interior, and spray mixed cell with urea（4）Interior exhaust gas is reacted.
3. the ship power plant waste gases tapping equipment according to claim 2 using HP-SCR technologies, it is characterised in that：
The injection pipe（7）It is interior to be equipped with nozzle and static mixer.
4. the ship power plant waste gases tapping equipment according to claim 2 using HP-SCR technologies, it is characterised in that：
The injection pipe（7）It is connected with urea feeding mechanism；Urea feeding mechanism includes transfer pump, urea storage tank, urea supply line；
The transfer pump is by urea supply line by urea storage tank in injection pipe（7）It is connected.
5. the ship power plant waste gases tapping equipment according to claim 4 using HP-SCR technologies, it is characterised in that：
The urea storage tank is remained above with the temperature in urea supply line equal to 3 DEG C.
6. the ship power plant waste gases tapping equipment according to claim 1 using HP-SCR technologies, it is characterised in that：
The exhaust pipe（3）It is equipped with expansion joint（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721583155.8U CN207634147U (en) | 2017-11-23 | 2017-11-23 | A kind of ship power plant waste gases tapping equipment using HP-SCR technologies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721583155.8U CN207634147U (en) | 2017-11-23 | 2017-11-23 | A kind of ship power plant waste gases tapping equipment using HP-SCR technologies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634147U true CN207634147U (en) | 2018-07-20 |
Family
ID=62857844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721583155.8U Active CN207634147U (en) | 2017-11-23 | 2017-11-23 | A kind of ship power plant waste gases tapping equipment using HP-SCR technologies |
Country Status (1)
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| CN (1) | CN207634147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989676A (en) * | 2017-11-23 | 2018-05-04 | 南通象屿海洋装备有限责任公司 | A kind of ship power plant waste gases tapping equipment using HP-SCR technologies |
-
2017
- 2017-11-23 CN CN201721583155.8U patent/CN207634147U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989676A (en) * | 2017-11-23 | 2018-05-04 | 南通象屿海洋装备有限责任公司 | A kind of ship power plant waste gases tapping equipment using HP-SCR technologies |
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