CN104420948B - Treating device for carrier waste gas and treating method thereof - Google Patents
Treating device for carrier waste gas and treating method thereof Download PDFInfo
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- CN104420948B CN104420948B CN201310412115.7A CN201310412115A CN104420948B CN 104420948 B CN104420948 B CN 104420948B CN 201310412115 A CN201310412115 A CN 201310412115A CN 104420948 B CN104420948 B CN 104420948B
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- hybrid chamber
- drainage tube
- exhaust steam
- steam passage
- nozzle
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Abstract
The invention discloses a treating device for carrier waste gas and a treating method thereof. The treating device for carrier waste gas comprises a waste gas channel, a mixing chamber, a nozzle and a reducing agent storage tank, wherein the waste gas channel contains a drainage tube; the drainage tube is provided with a first end and a second end; the mixing chamber is communicated with the waste gas channel; the nozzle is arranged on an end part of the mixing chamber; the reducing agent storage tank is connected with the nozzle; the first end of the drainage tube is connected with the waste gas channel; the second end of the drainage tube is connected with the mixing chamber; the diameter of the first end is more than the diameter of the second end.
Description
Technical field
The invention relates to a kind of emission-control equipment and waste gas processing method, and it is useless in particular to a kind of carrier
Flash Gas Compression Skid System and its processing method.
Background technology
Engine operates in discharged gas, the main component for causing air pollution be, for example, particle matter, nitrogen oxides,
Hydrocarbon, carbon monoxide etc..Wherein, nitrogen oxides can aoxidize to form the titanium dioxide for belonging to toxic gas in an atmosphere
Nitrogen, not only affects sight line, can also induce the disease in terms of breathing and pulmonary is damaged.Therefore, countries in the world are for waste gas
The content of middle nitrogen oxides is more and more paid attention to, and the discharge standard of correlation is also more strict.
There are many kinds, such as gas recirculation system, selective reduction catalyst to the mode for controlling nitrogen oxides at present
System, spray cooling etc., and wherein with selective reduction catalyst system most effect.Typical selective reduction catalyst system
System, mainly use ammonia or urea water carries out chemical reaction with nitrogen oxides, so as to making nitrogen oxides be reduced into nontoxic nitrogen
Gas and water.And compared to having a virose pure ammonia, urea water is not only nontoxic and with higher stability, and easily storage and
Transport.Therefore selective reduction catalyst system typically more adopts urea water as reactant.
Simply, the past adopt the selective reduction catalyst system of urea water and only carbamide water atomization aided in compressed air, and
Such mode not only needs to expend extra energy, also increases the burden of air compressor machine, can also jointly affect what is more brake with
The start of clutch system.Secondly, compressed air can reduce the operating temperature of system, may not only lure that the reaction outside expected is sent out into
It is raw, and then the product of generation secondary pollution, can also greatly reduce the transformation efficiency of nitrogen oxides.Furthermore, remain in system
Urea water on aerosol apparatus spray orifice and periphery, often because of high temperature, flash evapn forms crystallization, can equally affect nitrogen oxidation
The transformation efficiency of thing.
The content of the invention
Therefore, an aspect of of the present present invention is providing a kind of carrier emission-control equipment, by drainage tube by exhaust steam passage
Interior local waste gas introduces mixing intracavity, can effectively preheat reducing agent and lift mixed effect, and then improves turning for nitrogen oxides
Change efficiency.
Secondly, another aspect of the present invention is to provide a kind of carrier waste gas processing method, by by exhaust steam passage
Waste gas local introduces mixing intracavity, while sensing the EGT in exhaust steam passage to start cooling unit in good time, on the one hand may be used
Effectively preheat reducing agent and lift mixed effect, and then improve the transformation efficiency of nitrogen oxides, on the other hand can also prevent reduction
The deposit of agent crystallization is produced, and can in good time be reduced hybrid chamber with nozzle temperature and be reduced traditional air usage amount, Jin Erda
Into active heat management.
According to the embodiment in terms of present configuration, a kind of carrier emission-control equipment is proposed, it is logical comprising a waste gas
Road, a hybrid chamber, a nozzle and a reducing agent storage tank.Exhaust steam passage includes a drainage tube, and drainage tube has a first end
With one second end.Hybrid chamber connects exhaust steam passage, and nozzle is arranged on the one end of hybrid chamber, and reducing agent storage tank then connects spray
Mouth.Wherein, the first end connection exhaust steam passage of drainage tube, and the second end of drainage tube connects the end of hybrid chamber, and first end
Bore more than the second end bore.
Can be 1.5 according to the ratio of the bore at the embodiment in terms of present configuration, the bore of first end and the second end
To 3.There can be an angle between drainage tube and hybrid chamber, and angle can be 110 degree to 135 degree.Second end may be provided at hybrid chamber
Side wall on and connect the end of hybrid chamber, and the second end can be tangent with the inwall of hybrid chamber.Nozzle can be orthogonal with hybrid chamber, and
Nozzle can have a surface water resistant coating.
According to another embodiment in terms of present configuration, a kind of carrier emission-control equipment is proposed, comprising a waste gas
Passage, a hybrid chamber, a temperature-sensitive sticker, a nozzle, a cooling unit and a reducing agent storage tank.Exhaust steam passage draws comprising one
Flow tube, and drainage tube has a first end and one second end.Hybrid chamber connects exhaust steam passage, and temperature-sensitive sticker then senses waste gas and leads to
Temperature in road.Cooling unit is connected with hybrid chamber, and nozzle is arranged on the one end of hybrid chamber, and reducing agent storage tank then connects
Nozzle.Wherein, the first end connection exhaust steam passage of drainage tube, and the second end of drainage tube connects the end of hybrid chamber, and cool down
Unit is controlled by temperature-sensitive sticker.Whereby, carrier emission-control equipment still can EGT be higher than reducing agent crystallization temperature when,
Cold air, water smoke are passed through in good time or heat exchange is carried out, and decapacitation effectively prevents the deposit that reducing agent is crystallized from producing, and can also reduce mixing
Chamber is closed with nozzle temperature and traditional air usage amount is reduced.
According to another embodiment in terms of present configuration, the bore of first end can be more than the bore at the second end, and first
The ratio of the bore at the bore at end and the second end can be 1.5 to 3.There can be an angle between drainage tube and hybrid chamber, and angle can
For 110 degree to 135 degree.Second end may be provided on the side wall of hybrid chamber and connect the end of hybrid chamber, and the second end can with it is mixed
The inwall for closing chamber is tangent.Nozzle can be orthogonal with hybrid chamber, and nozzle can have a surface water resistant coating.
According to the embodiment in terms of the inventive method, a kind of carrier waste gas processing method is proposed, comprising by a waste gas
A waste gas in passage introduces one and mixes intracavity by drainage tube local, and wherein exhaust steam passage, drainage tube and hybrid chamber is formed
One path.By reducing agent injection mixing intracavity.The temperature of the waste gas in sensing exhaust steam passage, and when the waste gas in exhaust steam passage
Temperature higher than reducing agent crystallization temperature when, start a cooling unit make hybrid chamber lower the temperature.
According to the embodiment in terms of the inventive method, drainage tube can have a first end and one second end, drainage tube
First end can connect exhaust steam passage, and the second end of drainage tube can connect hybrid chamber, and the bore of first end is more than the mouth at the second end
Footpath, and the ratio of the bore at the bore of first end and the second end can be 1.5 to 3.There can be an angle between drainage tube and hybrid chamber,
And angle can be 110 degree to 135 degree.Reducing agent can be resisted with a surface with nozzle injection mixing intracavity, and nozzle
Water coating.
Description of the drawings
Fig. 1 is to illustrate the schematic diagram according to a kind of carrier emission-control equipment of an embodiment of the present invention；
Fig. 2 is the local overlooking schematic diagram of the carrier emission-control equipment for illustrating Fig. 1；
Fig. 3 is the schematic diagram of the nozzle of the carrier emission-control equipment for illustrating Fig. 1；
Fig. 4 is to illustrate the schematic diagram according to a kind of carrier emission-control equipment of another embodiment of the invention；
Fig. 5 is to illustrate the flow chart according to a kind of carrier waste gas processing method of an embodiment of the present invention.
Specific embodiment
Fig. 1 is refer to, it illustrates the signal according to a kind of carrier emission-control equipment 100 of an embodiment of the present invention
Figure.Please with reference to the 2nd and 3 figures, its illustrate respectively the local overlooking schematic diagram of the carrier emission-control equipment 100 of Fig. 1 and
The schematic diagram of nozzle 130.As illustrated, carrier emission-control equipment 100 includes an exhaust steam passage 110, a hybrid chamber 120,
Nozzle 130, a reducing agent storage tank 140, a temperature-sensitive sticker 150 and a cooling unit 160.Exhaust steam passage 110 draws comprising one
Flow tube 111, and drainage tube 111 has first end 111a and one second end 111b.
Drainage tube 111 first end 111a connection exhaust steam passage 110, and the second end 111b of drainage tube 111 be arranged on it is mixed
Close on the side wall in chamber 120 and connect the one end 120a of hybrid chamber 120, and with a folder between drainage tube 111 and hybrid chamber 120
Angle α.More specifically, the second end 111b of drainage tube 111 is tangent with the inwall of hybrid chamber 120（As shown in Figure 2）, and angle α
It can be 110 degree to 135 degree.
On the other hand, the bottom of hybrid chamber 120 connects with exhaust steam passage 110, and temperature-sensitive sticker 150 is to sense waste gas
Temperature in passage 110.Cooling unit 160 is connected with hybrid chamber 120, nozzle 130 to be orthogonal to hybrid chamber 120 in the form of set
The end 120a in hybrid chamber 120 is put, reducing agent storage tank 140 then connects nozzle 130.More specifically, the institute of temperature-sensitive sticker 150
The position of setting does not limit, as long as can sense the temperature in exhaust steam passage 110 and can be controlled, directly or indirectly opening for cooling unit 160
Close, so-called indirect control e.g. passes through a central controller.Cooling unit 160 can be air pump, water mist device, fan
Or heat exchanger etc., and so-called cooling unit 160 is connected with hybrid chamber 120, for example, when cooling unit 160 is air
When pump or water mist device, its can be set directly on hybrid chamber 120 or indirectly Jing nozzles 130 and be connected with hybrid chamber 120, as long as energy
Cold air is injected into hybrid chamber 120 and makes hybrid chamber 120 lower the temperature.When cooling unit 160 is fan or heat exchanger, its
Can be set directly on the cavity of hybrid chamber 120, as long as can discharge the heat energy of hybrid chamber 120 and make hybrid chamber 120 lower the temperature i.e.
Can.Additionally, the bore D of first end 111a of drainage tube 111aMore than the bore D of the second end 111bb, and nozzle 130 has a table
Face water resistant coating 131（As shown in Figure 3）.More specifically, bore DaWith bore DbRatio can be 1.5 to 3.
Because the waste gas that drainage tube 111 connects respectively in exhaust steam passage 110 and hybrid chamber 120, therefore exhaust steam passage 110 can
Introduce in hybrid chamber 120 through the local of drainage tube 111, and then can effectively preheat Jing nozzles 130 and spray in hybrid chamber 120 and mist
The reducing agent of change, reduce reducing agent causes the not good risk of transformation efficiency because not reaching operating temperature.Secondly as drainage tube
111 the second end 111b is tangent with the inwall of hybrid chamber 120, therefore waste gas Jing drainage tubes 111 can be formed when introducing hybrid chamber 120
One eddy airstream, and then reducing agent that can be effectively with influencing meridian atomization makes it be evenly distributed.Furthermore, due to the bottom of hybrid chamber 120
Portion connects with exhaust steam passage 110, therefore exhaust steam passage 110, drainage tube 111 can form a path with the three of hybrid chamber 120, and because even
It is in gradually-reducing shape from exhaust steam passage 110 towards hybrid chamber 120 to be connected to the drainage tube 111 between exhaust steam passage 110 and hybrid chamber 120, because
Therefore this flow field intensity can be lifted with flow field velocity.
On the other hand, because nozzle 130 has a surface water resistant coating 131, and have between drainage tube 111 and hybrid chamber 120
Having can form the configuration of eddy airstream, therefore residue in the spray orifice of nozzle 130 or the reducing agent drop around spray orifice can be by effective band
Walk, and then greatly reduce the residual reducing agent crystallization deposition thing that flash evapn is formed because of high temperature.Further, since waste gas is logical
Temperature in road 110 can pass through temperature-sensitive sticker 150 and be sensed, and temperature-sensitive sticker 150 can be controlled, directly or indirectly it is cold
But the keying of unit 160, therefore carrier emission-control equipment 100 can be when EGT be higher than reducing agent crystallization temperature, in good time
It is passed through cold air, water smoke or carries out heat exchange, not only can effectively prevent the deposit that reducing agent is crystallized from producing, can also reduces nozzle
130 temperature simultaneously reduce traditional air usage amount.
When carrier emission-control equipment 100 is operated, there is a flow Q in drainage tube 1111, and in exhaust steam passage 110, draw
In the path that flow tube 111 is formed with the three of hybrid chamber 120, there is a flow Q in exhaust steam passage 1102.And each enforcement of the present invention
The bore D of the drainage tube 111 of examplea, bore Db, angle α and flow Q1With flow Q2Ratio distinguish shown in following table one.
Table one
Fig. 4 is refer to, it illustrates the signal according to a kind of carrier emission-control equipment 100 of another embodiment of the invention
Figure.As illustrated, carrier emission-control equipment 100 is reduced comprising an exhaust steam passage 110, a hybrid chamber 120, a nozzle 130,
Agent storage tank 140, a temperature-sensitive sticker 150 and a cooling unit 160.Exhaust steam passage 110 includes a drainage tube 111, and drain
Pipe 111 has first end 111a and one second end 111b.Carrier emission-control equipment 100 except drainage tube 111 shape with
Beyond relative position set by drainage tube 111, remaining is all identical with aforementioned embodiments.More specifically, drainage tube 111 sets
The inside in exhaust steam passage 110 and hybrid chamber 120, and drainage tube 111 are put with first end 111a connection exhaust steam passage 110, and with
Second end 111b connects hybrid chamber 120.Accordingly, outside drainage tube 111 will not be exposed to, can slow down caused by external environment factor
Affect.
Fig. 5 is refer to, it illustrates the flow chart according to a kind of carrier waste gas processing method of an embodiment of the present invention.Please
In the lump with reference to Fig. 1.As illustrated, first such as step 510, the waste gas in an exhaust steam passage is introduced by drainage tube local
One mixing intracavity, wherein exhaust steam passage, drainage tube and hybrid chamber forms a path.Then such as step 520, by reducing agent injection
Mixing intracavity.Afterwards such as step 530, the temperature of the waste gas in exhaust steam passage is sensed, and when the temperature of the waste gas in exhaust steam passage
Higher than reducing agent crystallization temperature when, start a cooling unit make hybrid chamber lower the temperature.Whereby, the reducing agent of injection mixing intracavity can
Effectively preheating, and mix the mixed effect of intracavity effectively to be lifted.In addition, the deposit that can still prevent reducing agent from crystallizing
Produce, and reduce nozzle temperature and reduce traditional air usage amount.
Although the present invention is disclosed above with embodiment, so it is not limited to the present invention, any to be familiar with this skill
Person, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations, therefore protection scope of the present invention is worked as
It is defined depending on the scope of which is defined in the appended claims.
Claims (20)
1. a kind of carrier emission-control equipment, it is characterised in that include：
One exhaust steam passage, the exhaust steam passage is included：One drainage tube, with a first end and one second end；
One hybrid chamber, connects the exhaust steam passage；
One nozzle, is arranged on the one end of the hybrid chamber；And a reducing agent storage tank, connect the nozzle；
Wherein, the first end of the drainage tube connects the exhaust steam passage, and second end of the drainage tube connects being somebody's turn to do for the hybrid chamber
End and it is tangent with the inwall of the hybrid chamber and formed an eddy airstream, and the bore of the first end more than second end mouth
Footpath, the drainage tube is from the exhaust steam passage towards the hybrid chamber in gradually-reducing shape, flow field intensity and the flow field so as to increasing the eddy airstream
Speed.
2. carrier emission-control equipment according to claim 1, it is characterised in that the bore of the first end and second end
Bore ratio be 1.5 to 3.
3. carrier emission-control equipment according to claim 1, it is characterised in that have between the drainage tube and the hybrid chamber
One angle.
4. carrier emission-control equipment according to claim 3, it is characterised in that the angle is 110 degree to 135 degree.
5. carrier emission-control equipment according to claim 1, it is characterised in that second end is arranged on the hybrid chamber
Connect the end of the hybrid chamber on the wall of side.
6. carrier emission-control equipment according to claim 1, it is characterised in that the nozzle is orthogonal with the hybrid chamber.
7. carrier emission-control equipment according to claim 1, it is characterised in that the nozzle has a surface water resistant plating
Layer.
8. a kind of carrier emission-control equipment, it is characterised in that include：
One exhaust steam passage, the exhaust steam passage is included：One drainage tube, with a first end and one second end；
One hybrid chamber, connects the exhaust steam passage；
One temperature-sensitive sticker, senses the temperature in the exhaust steam passage；
One cooling unit, is connected with the hybrid chamber；
One nozzle, is arranged on the one end of the hybrid chamber；And
One reducing agent storage tank, connects the nozzle；
Wherein, the first end of the drainage tube connects the exhaust steam passage, and second end of the drainage tube connects being somebody's turn to do for the hybrid chamber
End, and it is tangent with the inwall of the hybrid chamber and form an eddy airstream, the drainage tube is in towards the hybrid chamber from the exhaust steam passage
Gradually-reducing shape, the flow field intensity and flow field velocity so as to increasing the eddy airstream, and the cooling unit is controlled by the temperature-sensitive sticker.
9. carrier emission-control equipment according to claim 8, it is characterised in that the bore of the first end more than this second
The bore at end.
10. carrier emission-control equipment according to claim 9, it is characterised in that the bore of the first end with this second
The ratio of the bore at end is 1.5 to 3.
11. carrier emission-control equipments according to claim 8, it is characterised in that have between the drainage tube and the hybrid chamber
There is an angle.
12. carrier emission-control equipments according to claim 11, it is characterised in that the angle is 110 degree to 135 degree.
13. carrier emission-control equipments according to claim 8, it is characterised in that second end is arranged on the hybrid chamber
Side wall on and connect the end of the hybrid chamber.
14. carrier emission-control equipments according to claim 8, it is characterised in that the nozzle is orthogonal with the hybrid chamber.
15. carrier emission-control equipments according to claim 8, it is characterised in that the nozzle has a surface water resistant plating
Layer.
16. a kind of carrier waste gas processing methods, it is characterised in that include：
A waste gas in one exhaust steam passage is introduced into one by drainage tube local and mixes intracavity, wherein the exhaust steam passage, this draws
Flow tube and the hybrid chamber form a path, and the drainage tube is tangent with the inwall of the hybrid chamber and form an eddy airstream；
One reducing agent is injected into the mixing intracavity；And
The temperature of the waste gas in the exhaust steam passage is sensed, and when the temperature of the waste gas in the exhaust steam passage is higher than the reducing agent
Crystallization temperature when, starting a cooling unit makes hybrid chamber cooling, and makes the reducing agent be evenly distributed through the eddy airstream
And take away the reducing agent of residual.
17. carrier waste gas processing methods according to claim 16, it is characterised in that the drainage tube have a first end with
One second end, first end of the drainage tube connects the exhaust steam passage, and second end of the drainage tube connects the hybrid chamber, and should
Bore of the bore of first end more than second end.
18. carrier waste gas processing methods according to claim 17, it is characterised in that the bore of the first end with this second
The ratio of the bore at end is 1.5 to 3.
19. carrier waste gas processing methods according to claim 16, it is characterised in that have between the drainage tube and the hybrid chamber
There is an angle, and the angle is 110 degree to 135 degree.
20. carrier waste gas processing methods according to claim 16, it is characterised in that the reducing agent is with nozzle injection
The mixing intracavity, and the nozzle has a surface water resistant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412115.7A CN104420948B (en) | 2013-09-11 | 2013-09-11 | Treating device for carrier waste gas and treating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412115.7A CN104420948B (en) | 2013-09-11 | 2013-09-11 | Treating device for carrier waste gas and treating method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104420948A CN104420948A (en) | 2015-03-18 |
| CN104420948B true CN104420948B (en) | 2017-04-12 |
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ID=52970950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310412115.7A Active CN104420948B (en) | 2013-09-11 | 2013-09-11 | Treating device for carrier waste gas and treating method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187778A (en) * | 1995-06-28 | 1998-07-15 | 西门子公司 | Catalytic purification process and device for exhaust gas from combustion system |
| FR2920471A1 (en) * | 2007-08-28 | 2009-03-06 | Renault Sas | EXHAUST GAS POST-TREATMENT DEVICE |
| CN103210189A (en) * | 2010-11-02 | 2013-07-17 | 日立造船株式会社 | Exhaust gas emission purification device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003100225A1 (en) * | 2002-05-07 | 2003-12-04 | Extengine Transport Systems | Emission control system |
| JP4779959B2 (en) * | 2006-12-20 | 2011-09-28 | 株式会社デンソー | Exhaust purification device |
| KR101236305B1 (en) * | 2012-05-24 | 2013-02-22 | 주식회사 덱코 | Apparatus for removing nitrogen oxides and method for removing nitrogen oxides thereof |
-
2013
- 2013-09-11 CN CN201310412115.7A patent/CN104420948B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187778A (en) * | 1995-06-28 | 1998-07-15 | 西门子公司 | Catalytic purification process and device for exhaust gas from combustion system |
| FR2920471A1 (en) * | 2007-08-28 | 2009-03-06 | Renault Sas | EXHAUST GAS POST-TREATMENT DEVICE |
| CN103210189A (en) * | 2010-11-02 | 2013-07-17 | 日立造船株式会社 | Exhaust gas emission purification device |
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| CN104420948A (en) | 2015-03-18 |
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