CN204900032U - SCR urea nozzle cooling fixing device - Google Patents
SCR urea nozzle cooling fixing device Download PDFInfo
- Publication number
- CN204900032U CN204900032U CN201520605712.6U CN201520605712U CN204900032U CN 204900032 U CN204900032 U CN 204900032U CN 201520605712 U CN201520605712 U CN 201520605712U CN 204900032 U CN204900032 U CN 204900032U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cooling liquid
- fitting seat
- urea nozzle
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000004202 carbamide Substances 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000110 cooling liquid Substances 0.000 claims description 64
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002826 coolant Substances 0.000 abstract 9
- 239000007788 liquid Substances 0.000 abstract 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
(B, ) the utility model discloses a (B, ) (b) SCR (b) (b) urea nozzle cooling fixing device, including the nozzle install seat, locate the inside cooling passage of nozzle install seat, and locate nozzle install seat both sides, and the coolant liquid water inlet and the coolant liquid delivery port that are linked together with the cooling passage, coolant liquid water inlet and coolant liquid delivery port communicate coolant liquid intake post and coolant liquid play water column respectively through cavity eye bolt, be equipped with the nozzle install post of a plurality of and urea nozzle pedestal mounting hole one -to -one perpendicularly on the nozzle install seat, its advantage lies in, effectively reduces urea nozzle temperature through locating the inside cooling passage of nozzle install seat, adopt simultaneously with the coolant liquid of cooling passage intercommunication intake post and coolant liquid play water column, make the coolant liquid of cooling passage inside be flow state, further improve the cooling effect to urea nozzle long -time use under the normal temperature can be guaranteed, the life of urea nozzle is improved simultaneously. (B, )
Description
Technical field
The utility model belongs to diesel engine vent gas reprocessing field, is specifically related to a kind of SCR urea nozzle cooling fixing device.
Background technique
Selective catalytic reduction (SCR) is the technology path of the diesel engine vent gas reprocessing of domestic main flow accreditation.SCR refers to the NO in the tail gas of diesel engine emissions
xcatalytic reduction is free of contamination N
2and H
2the device of O, reducing agent is wherein aqueous solution of urea.The aqueous solution of urea be injected in outlet pipe is hydrolyzed into CO
2and NH
3, NH
3as reducing agent and NO
xreaction generates N
2and H
2o.
Current domestic use mainly with the SCR aftertreatment system that air is auxiliary, only have certain external large enterprise to produce and assist SCR urea injection system without air.Assist SCR urea injection system not need air-source without air, apparatus structure is simpler compared to air assist system, and this assists SCR system to form primarily of urea box, urea pump, urea nozzle, catalytic muffler, urea pipe and control unit without air.But because SCR urea nozzle contacts with the high-temperature tail gas of diesel engine emissions for a long time, cause its temperature too high, easy high temperature failure, reduce nozzle working life.
Model utility content
The utility model object is: not only structure is simple to provide one, and can effectively reduce urea nozzle temperature, improves the SCR urea nozzle cooling fixing device in nozzle working life.
The technical solution of the utility model is: a kind of SCR urea nozzle cooling fixing device, comprise nozzle fitting seat, be located at the cooling passage of described nozzle fitting seat inside, and be located at described nozzle fitting seat both sides, and the cooling liquid water intake be connected with described cooling passage and cooling liquid water outlet, described cooling liquid water intake is communicated with cooling liquid inflow column and cooling liquid effluent column with described cooling liquid water outlet respectively by hollow swing bolt, described nozzle fitting seat is vertically provided with several and urea nozzle base installing hole nozzle erection column one to one, be provided with in the middle part of described nozzle fitting seat simultaneously and pass for urea nozzle and stretch into the shoulder hole in outlet pipe.
As preferred technological scheme, seal washer is equipped with in described hollow swing bolt and the joint of described cooling liquid inflow column and described cooling liquid effluent column and the joint of described hollow swing bolt and described cooling liquid water intake and described cooling liquid water outlet, improve sealing effect, effectively prevent cooling liquid from revealing.
As preferred technological scheme, described hollow swing bolt is provided with the bottom through-hole be communicated with described cooling liquid water intake or described cooling liquid water outlet, and the lateral through aperture be communicated with described cooling liquid inflow column or described cooling liquid effluent column.
As preferred technological scheme, described cooling liquid inflow column and described cooling liquid effluent column are equipped with pipeline fast joint.
As preferred technological scheme, described nozzle fitting seat is hollow cylinder shape fitting seat, and described cooling liquid water intake and cooling liquid water outlet are located on described hollow cylinder shape fitting seat two side plane.
As preferred technological scheme, described nozzle fitting seat is provided with several mounting holes be connected with outlet pipe, is convenient to dismounting and change, improves later maintenance.
As preferred technological scheme, be provided with several radiating fins at the upper surface of described nozzle fitting seat and side, improve radiating effect further.
As preferred technological scheme, in described nozzle erection column head, be provided with the tapped hole for installing urea nozzle.
The utility model has the advantages that:
1. the utility model effectively reduces urea nozzle temperature by the cooling passage being located at nozzle fitting seat inside, adopt the cooling liquid inflow column be communicated with cooling passage and cooling liquid effluent column simultaneously, the cooling liquid of cooling passage inside is made to be flowing state, further raising cooling effect, thus can ensure that urea nozzle uses at a normal temperature for a long time, improve the working life of urea nozzle simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the utility model structural representation;
Fig. 2 is the package assembly schematic diagram of the utility model and urea nozzle;
Fig. 3 is hollow swing bolt structural representation of the present invention;
Wherein: 1 nozzle fitting seat, 2 hollow swing bolts, 3 cooling liquid inflow columns, 4 cooling liquid effluent columns, 5 urea nozzle base installing holes, 6 nozzle erection columns, 7 urea nozzle, 8 shoulder holes, 9 seal washers, 10 bottom through-holes, 11 lateral through aperture, 12 pipeline fast joints, 13 mounting holes, 14 radiating fins.
Embodiment
Embodiment: shown in 3, a kind of SCR urea nozzle cooling fixing device, comprise nozzle fitting seat 1, be located at the cooling passage of nozzle fitting seat 1 inside, and be located at nozzle fitting seat 1 both sides, and the cooling liquid water intake be connected with cooling passage and cooling liquid water outlet, cooling liquid water intake is communicated with cooling liquid inflow column 3 and cooling liquid effluent column 4 with cooling liquid water outlet respectively by hollow swing bolt 2, nozzle fitting seat 1 is vertically provided with three and urea nozzle base installing hole 5 nozzle erection column 6 one to one, the tapped hole for installing urea nozzle 7 is provided with in nozzle erection column 6 head, be provided with in the middle part of nozzle fitting seat 1 simultaneously and pass for urea nozzle 7 and stretch into the shoulder hole 8 in outlet pipe, the utility model effectively reduces urea nozzle 7 temperature by the cooling passage being located at nozzle fitting seat 1 inside, adopt the cooling liquid inflow column 3 be communicated with cooling passage and cooling liquid effluent column 4 simultaneously, the cooling liquid of cooling passage inside is made to be flowing state, further raising cooling effect, thus can ensure that urea nozzle 7 uses at a normal temperature for a long time, improve the working life of urea nozzle 7 simultaneously.
With reference to shown in Fig. 1,2, the utility model is equipped with seal washer 9 in the joint of hollow swing bolt 2 and cooling liquid inflow column 3 and cooling liquid effluent column 4 and hollow swing bolt 2 with the joint of cooling liquid water intake and cooling liquid water outlet, improve sealing effect, effectively prevent cooling liquid from revealing.
With reference to shown in Fig. 3, hollow swing bolt 2 of the present utility model is provided with the bottom through-hole 10 be communicated with cooling liquid water intake or cooling liquid water outlet, and the lateral through aperture 11 to be communicated with cooling liquid inflow column 3 or cooling liquid effluent column 4, on cooling liquid inflow column 3 and cooling liquid effluent column 4, be equipped with pipeline fast joint 12 simultaneously.
With reference to shown in Fig. 1,2, nozzle fitting seat 1 of the present utility model is hollow cylinder shape fitting seat, cooling liquid water intake and cooling liquid water outlet are located on hollow cylinder shape fitting seat two side plane, on nozzle fitting seat 1, be provided with several mounting holes 13 be connected with outlet pipe simultaneously, be convenient to dismounting and change, improve later maintenance.
With reference to shown in Fig. 1,2, the utility model is provided with several radiating fins 14 at the upper surface of nozzle fitting seat 1 and side, improves radiating effect further.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (8)
1. a SCR urea nozzle cooling fixing device, it is characterized in that, comprise nozzle fitting seat, be located at the cooling passage of described nozzle fitting seat inside, and be located at described nozzle fitting seat both sides, and the cooling liquid water intake be connected with described cooling passage and cooling liquid water outlet, described cooling liquid water intake is communicated with cooling liquid inflow column and cooling liquid effluent column with described cooling liquid water outlet respectively by hollow swing bolt, described nozzle fitting seat is vertically provided with several and urea nozzle base installing hole nozzle erection column one to one, be provided with in the middle part of described nozzle fitting seat simultaneously and pass for urea nozzle and stretch into the shoulder hole in outlet pipe.
2. SCR urea nozzle cooling fixing device according to claim 1, it is characterized in that, be equipped with seal washer in described hollow swing bolt and the joint of described cooling liquid inflow column and described cooling liquid effluent column and the joint of described hollow swing bolt and described cooling liquid water intake and described cooling liquid water outlet.
3. SCR urea nozzle cooling fixing device according to claim 1, it is characterized in that, described hollow swing bolt is provided with the bottom through-hole be communicated with described cooling liquid water intake or described cooling liquid water outlet, and the lateral through aperture be communicated with described cooling liquid inflow column or described cooling liquid effluent column.
4. SCR urea nozzle cooling fixing device according to claim 1, is characterized in that, described cooling liquid inflow column and described cooling liquid effluent column are equipped with pipeline fast joint.
5. SCR urea nozzle cooling fixing device according to claim 1, it is characterized in that, described nozzle fitting seat is hollow cylinder shape fitting seat, and described cooling liquid water intake and cooling liquid water outlet are located on described hollow cylinder shape fitting seat two side plane.
6. SCR urea nozzle cooling fixing device according to claim 1, it is characterized in that, described nozzle fitting seat is provided with several mounting holes be connected with outlet pipe.
7. SCR urea nozzle according to claim 1 cooling fixing device, is characterized in that, is provided with several radiating fins at the upper surface of described nozzle fitting seat and side.
8. SCR urea nozzle cooling fixing device according to claim 1, is characterized in that, being provided with the tapped hole for installing urea nozzle in described nozzle erection column head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605712.6U CN204900032U (en) | 2015-08-12 | 2015-08-12 | SCR urea nozzle cooling fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605712.6U CN204900032U (en) | 2015-08-12 | 2015-08-12 | SCR urea nozzle cooling fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900032U true CN204900032U (en) | 2015-12-23 |
Family
ID=54922218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605712.6U Active CN204900032U (en) | 2015-08-12 | 2015-08-12 | SCR urea nozzle cooling fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900032U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065094A (en) * | 2015-08-12 | 2015-11-18 | 清华大学苏州汽车研究院（吴江） | SCR urea nozzle cooling and fixing device |
| CN106257003A (en) * | 2016-06-06 | 2016-12-28 | 南通恩普环保技术有限公司 | Diesel engine scr reductant metering nozzle |
| CN114645770A (en) * | 2021-05-25 | 2022-06-21 | 长城汽车股份有限公司 | Protection control method and device for urea nozzle, electronic equipment and vehicle |
-
2015
- 2015-08-12 CN CN201520605712.6U patent/CN204900032U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065094A (en) * | 2015-08-12 | 2015-11-18 | 清华大学苏州汽车研究院（吴江） | SCR urea nozzle cooling and fixing device |
| CN106257003A (en) * | 2016-06-06 | 2016-12-28 | 南通恩普环保技术有限公司 | Diesel engine scr reductant metering nozzle |
| CN114645770A (en) * | 2021-05-25 | 2022-06-21 | 长城汽车股份有限公司 | Protection control method and device for urea nozzle, electronic equipment and vehicle |
| CN114645770B (en) * | 2021-05-25 | 2023-03-03 | 长城汽车股份有限公司 | Protection control method and device for urea nozzle, electronic equipment and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |