CN209067318U - A kind of SCR catalytic converter and its cabinet - Google Patents
A kind of SCR catalytic converter and its cabinet Download PDFInfo
- Publication number
- CN209067318U CN209067318U CN201821587078.8U CN201821587078U CN209067318U CN 209067318 U CN209067318 U CN 209067318U CN 201821587078 U CN201821587078 U CN 201821587078U CN 209067318 U CN209067318 U CN 209067318U
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- China
- Prior art keywords
- shell
- cabinet
- tail gas
- interior case
- gas chamber
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 238000006479 redox reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a kind of SCR catalytic converter and its cabinet, the cabinet includes interior case (1) and outer container, the box shell of outer container includes inner casing (21) and shell (22), the inner surface of inner casing (21) forms the first accommodating chamber, tail gas chamber is formed between the outer surface of inner casing (21) and the inner surface of shell (22), the top of shell (22) has the exhaust pipe (221) being connected to tail gas chamber；Interior case (1) is located in the first accommodating chamber, interior case (1) has the second accommodating chamber for installing catalyst carrier component, interior case (1) has to extend outwardly close to the position at top is pierced by the air inlet pipe (11) of outer container, and the bottom of interior case (1) has the escape pipe for extending downwardly and being connected to tail gas chamber.It uses cabinet provided by the utility model that SCR catalytic converter can be made to achieve the effect that the row's of being promoted temperature in a manner of more energy saving, efficient, so that the redox reaction of exhaust aftertreatment be made to carry out under preferable environment, is conducive to promote emission level.
Description
Technical field
The utility model relates to diesel engine technologies fields, more particularly to a kind of SCR catalytic converter and its cabinet.
Background technique
The present regulation in relation to motor vehicle emission is increasingly stringenter, and is also proposed constantly to automobile exhaust post-processing higher
It is required that.SCR catalytic reduction technique is to reduce diesel engine NOx emission, meets the important technology of state IV and the above emission regulation
Route, SCR catalytic converter also become most widely used automobile exhaust gas processing apparatus.
SCR catalytic converter needs are reached a certain level in delivery temperature could react most abundant, still, according to current vehicle
From the point of view of universal actual operating mode, warm all less desirable, the operating condition especially in urban district, suburbs, exhaust temperature are arranged
Degree is all unable to reach the optimum temperature of SCR conversion efficiency.
The optimum temperature of SCR conversion efficiency, currently used two ways difference are reached or approached for the row's of being promoted temperature
It is to wrap up one layer of heat preservation material outside SCR case and electric heater unit is set in SCR catalytic converter, however, using thermal insulating material
It is little that material mode temperature promotes effect, and cannot achieve temperature-controllable；Heating dress need to additionally be installed additional using electronics heating method
It sets and control system, needs to expend the electricity of automobile when bringing the increase of installation cost and later maintenance cost, and heating,
Bring the consumption of the energy.
In conclusion it is how more energy saving, efficiently promoted row temperature, to reach or approach the best of SCR conversion efficiency
Temperature becomes those skilled in the art's technical problem urgently to be resolved.
Utility model content
In view of this, the present invention provides a kind of SCR catalytic converter and its cabinets, can be made using the cabinet
SCR catalytic converter achievees the effect that the row's of being promoted temperature in a manner of more energy saving, efficient, to make the oxidation of exhaust aftertreatment also
Original reaction carries out under preferable environment, is conducive to promote emission level.
In order to achieve the above object, the utility model provides the following technical solutions:
A kind of cabinet of SCR catalytic converter, including interior case and outer container, the box shell of the outer container include inner casing and shell,
The inner surface of the inner casing forms the first accommodating chamber, forms tail gas between the outer surface of the inner casing and the inner surface of the shell
Chamber, the top of the shell have the exhaust pipe being connected to the tail gas chamber；
The interior case is located in first accommodating chamber, and the interior case has second for installing catalyst carrier component
Accommodating chamber, the interior case has to extend outwardly close to the position at top is pierced by the air inlet pipe of the outer container, the bottom of the interior case
With the escape pipe for extending downwardly and being connected to the tail gas chamber.
Preferably, in above-mentioned cabinet, the distance between the outer surface of the inner casing and the inner surface of the shell are
20mm~50mm.
Preferably, in above-mentioned cabinet, the shell has the bypass pipe for being connected to the tail gas chamber and ambient atmosphere, described
Safety valve is provided on bypass pipe.
Preferably, in above-mentioned cabinet, the entrance of the bypass pipe is located at escape pipe described in the bottom face of the shell
Position.
Preferably, in above-mentioned cabinet, the safety valve is solenoid valve, is provided with baroceptor on the exhaust pipe,
The baroceptor is electrically connected with the safety valve.
Preferably, in above-mentioned cabinet, temperature sensor, the temperature sensor and the peace are provided on the shell
Full valve electrical connection.
Preferably, in above-mentioned cabinet, the interior case and the outer container are cuboid.
Preferably, in above-mentioned cabinet, the temperature sensor includes that the first temperature positioned at the top surface of the shell passes
Sensor and second temperature sensor positioned at the side of the shell.
Preferably, in above-mentioned cabinet, the bottom of the shell has the drainpipe being connected to the tail gas chamber.
A kind of SCR catalytic converter, including cabinet, the cabinet are the cabinet as disclosed in above-mentioned any one.
According to the above technical scheme it is found that in the cabinet provided by the utility model for SCR catalytic converter, for containing
The interior case of dress catalyst carrier component is located in the inner casing of outer container, and tail gas chamber is formed between the inner casing of outer container and shell, interior
Case has close to the position at top to extend outwardly and stretches out the air inlet pipe of outer container, the bottom of interior case have extend downwardly and with tail gas chamber
The escape pipe of connection, meanwhile, the top of the shell of outer container has the exhaust pipe being connected to tail gas chamber, so, the tail gas of engine
Interior case is first entered by air inlet pipe, enters tail gas chamber from escape pipe again after completing catalysis reduction, then flows through tail gas chamber from bottom to top
The exhaust pipe of outer box top is reached, is finally discharged from exhaust pipe.
It is located in the inner casing of outer container due to interior case, and tail gas chamber is formed by the inner casing and shell of outer container, so tail gas chamber is protected
It is trapped among on the outside of interior case, tail gas, which is filled in tail gas chamber, can form closed gas wall together, with existing SCR catalytic converter
It compares, the effect of temperature raising can be played.It can be seen that after using cabinet provided by the utility model, SCR catalytic converter can be with
Secondary use is carried out to the tail gas of engine discharge, the row's of being promoted temperature is achieved the effect that in a manner of more energy saving, efficient, is had in this way
It is carried out under preferable environment conducive to the redox reaction of exhaust aftertreatment, obtains preferable emission level.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is a kind of cross-sectional view of cabinet for SCR catalytic converter provided by the embodiment of the utility model；
Fig. 2 is the A-A cross-sectional view in Fig. 1；
Fig. 3 is the appearance diagram of the cabinet provided by the embodiment of the utility model for SCR catalytic converter.
In the figure, it is marked as
1, interior case；11, air inlet pipe；21, inner casing；22, shell；221, exhaust pipe；222, bypass pipe；223, drainpipe；31,
First temperature sensor；32, second temperature sensor.
Specific embodiment
In order to make it easy to understand, the utility model will be further described with reference to the accompanying drawing.
Referring to FIG. 1 to FIG. 3, Fig. 1 is a kind of cabinet for SCR catalytic converter provided by the embodiment of the utility model
Cross-sectional view, Fig. 2 are the A-A cross-sectional views in Fig. 1, and Fig. 3 is the case provided by the embodiment of the utility model for SCR catalytic converter
The appearance diagram of body.
Cabinet provided by the embodiment of the utility model for SCR catalytic converter includes interior case 1 and outer container, wherein outer
The box shell of case includes inner casing 21 and shell 22, and the inner surface of inner casing 21 forms the first accommodating chamber, the outer surface of inner casing 21 and shell
Tail gas chamber is formed between 22 inner surface, the top of shell 22 has the exhaust pipe 221 being connected to tail gas chamber；Interior case 1 is located at the
In one accommodating chamber, interior case 1 has the second accommodating chamber for installing catalyst carrier component, and interior case 1 has close to the position at top
Have to extend outwardly and be pierced by the air inlet pipe 11 of outer container, the bottom of interior case 1 has the escape pipe (figure for extending downwardly and being connected to tail gas chamber
In it is unmarked).
In use, the tail gas of engine first enters interior case 1 by air inlet pipe 11, enter again from escape pipe after completing catalysis reduction
Then tail gas chamber flows through the exhaust pipe 221 that tail gas chamber reaches outer box top from bottom to top, is finally discharged from exhaust pipe 221.
It is located in the inner casing 21 of outer container due to interior case 1, and tail gas chamber is formed by the inner casing 21 and shell 22 of outer container, so
Tail gas chamber guarantor is trapped among interior 1 outside of case, and tail gas, which is filled in tail gas chamber, can form closed gas wall together, with existing SCR
Catalyst is compared, and the effect of temperature raising can be played.It can be seen that after using cabinet provided by the utility model, SCR catalysis
Converter can carry out secondary use to the tail gas that engine is discharged, and the row's of being promoted temperature is reached in a manner of more energy saving, efficient
Effect, the redox reaction for being conducive to exhaust aftertreatment in this way carry out under preferable environment, obtain preferable emission level.
In specific practical application, the distance between inner surface of the outer surface of inner casing 21 and shell 22 can for 20mm~
50mm。
In order to improve safety, the bypass pipe 222 of connection tail gas chamber and ambient atmosphere can be set on shell 22, and
Safety valve is set on bypass pipe 222, and in this way when pressure at expulsion is excessive, tail gas can be exhausted directly in atmosphere by bypass pipe.
As shown in Figure 1, the entrance of bypass pipe 222 is generally located on the bottom of shell 22 and the position of escape pipe face.
In specific practical application, safety valve can use solenoid valve, baroceptor be arranged on exhaust pipe 221, and will
Baroceptor is electrically connected with safety valve.
When safety valve uses solenoid valve, the temperature sensor being electrically connected with safety valve can also be set on shell 22, this
Sample can control safety valve opening when detecting delivery temperature beyond setting value, so that the row's of avoiding temperature is excessively high.
Interior case 1 and outer container all can be cuboid, as shown in figures 1 and 3, in the present embodiment, temperature sensor includes
Positioned at the first temperature sensor 31 of the top surface of shell 22 and positioned at the second temperature sensor 32 of the side of shell 22, have in this way
Conducive to the temperature controlled accuracy of raising.
It as depicted in figs. 1 and 2, can be at the bottom of shell 22 in order to periodically release the intracavitary ponding gradually formed of tail gas
The drainpipe 223 being connected to tail gas chamber is arranged in portion, and discharging valve is arranged on drainpipe 223.
The utility model also provides a kind of SCR catalytic converter, which includes disclosed in above-described embodiment
Cabinet.The cabinet as disclosed in above-described embodiment has above-mentioned technique effect, and the SCR catalytic converter with the cabinet is same
Sample has above-mentioned technique effect, and repeats no more herein.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.A variety of modifications of embodiment will be readily apparent to those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, originally
Utility model is not intended to be limited to embodiment illustrated herein, and is to fit to and the principles and novel features disclosed herein
Consistent widest scope.
Claims (10)
1. a kind of cabinet of SCR catalytic converter, which is characterized in that including interior case (1) and outer container, the box shell of the outer container includes
Inner casing (21) and shell (22), the inner surface of the inner casing (21) form the first accommodating chamber, the outer surface of the inner casing (21) with
Tail gas chamber is formed between the inner surface of the shell (22), the top of the shell (22) has the row being connected to the tail gas chamber
Tracheae (221)；
The interior case (1) is located in first accommodating chamber, and the interior case (1) has for installing catalyst carrier component
Two accommodating chambers, the interior case (1) has to extend outwardly close to the position at top is pierced by the air inlet pipe (11) of the outer container, described interior
The bottom of case (1) has the escape pipe for extending downwardly and being connected to the tail gas chamber.
2. cabinet according to claim 1, which is characterized in that the outer surface of the inner casing (21) and the shell (22)
The distance between inner surface is 20mm~50mm.
3. cabinet according to claim 1, which is characterized in that the shell (22), which has, is connected to the tail gas chamber and the external world
The bypass pipe (222) of atmosphere is provided with safety valve on the bypass pipe (222).
4. cabinet according to claim 3, which is characterized in that the entrance of the bypass pipe (222) is located at the shell
(22) position of escape pipe described in bottom face.
5. cabinet according to claim 4, which is characterized in that the safety valve is solenoid valve, on the exhaust pipe (221)
It is provided with baroceptor, the baroceptor is electrically connected with the safety valve.
6. cabinet according to claim 5, which is characterized in that it is provided with temperature sensor on the shell (22), it is described
Temperature sensor is electrically connected with the safety valve.
7. cabinet according to claim 6, which is characterized in that the interior case (1) and the outer container are cuboid.
8. cabinet according to claim 7, which is characterized in that the temperature sensor includes being located at the shell (22)
The second temperature sensor (32) of the first temperature sensor (31) of top surface and the side positioned at the shell (22).
9. cabinet described according to claim 1~any one of 8, which is characterized in that the bottom of the shell (22) has
The drainpipe (223) being connected to the tail gas chamber.
10. a kind of SCR catalytic converter, including cabinet, which is characterized in that the cabinet is as any one in claim 1~9
Cabinet described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587078.8U CN209067318U (en) | 2018-09-27 | 2018-09-27 | A kind of SCR catalytic converter and its cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821587078.8U CN209067318U (en) | 2018-09-27 | 2018-09-27 | A kind of SCR catalytic converter and its cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067318U true CN209067318U (en) | 2019-07-05 |
Family
ID=67093581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821587078.8U Withdrawn - After Issue CN209067318U (en) | 2018-09-27 | 2018-09-27 | A kind of SCR catalytic converter and its cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979806A (en) * | 2018-09-27 | 2018-12-11 | 潍柴动力股份有限公司 | A kind of SCR catalytic converter and its cabinet |
-
2018
- 2018-09-27 CN CN201821587078.8U patent/CN209067318U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979806A (en) * | 2018-09-27 | 2018-12-11 | 潍柴动力股份有限公司 | A kind of SCR catalytic converter and its cabinet |
| CN108979806B (en) * | 2018-09-27 | 2024-01-16 | 潍柴动力股份有限公司 | SCR catalytic converter and box thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190705 Effective date of abandoning: 20240116 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190705 Effective date of abandoning: 20240116 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |