CN204572139U - A kind of automobile SCR system urea feedway - Google Patents
A kind of automobile SCR system urea feedway Download PDFInfo
- Publication number
- CN204572139U CN204572139U CN201520257924.XU CN201520257924U CN204572139U CN 204572139 U CN204572139 U CN 204572139U CN 201520257924 U CN201520257924 U CN 201520257924U CN 204572139 U CN204572139 U CN 204572139U
- Authority
- CN
- China
- Prior art keywords
- urea
- nozzle
- delivery pipe
- periphery
- feedway
- 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.)
- Active
Links
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a kind of automobile SCR system urea feedway, comprise the urea delivery pipe for being connected with urea line, limited location snap ring is provided with around described urea delivery pipe periphery, thermal shield is equipped with in described urea delivery pipe periphery also stuffing box gland, described thermal shield is provided with fitting seat near one end of described limited location snap ring, described fitting seat fixed cover is loaded on the periphery of described urea delivery pipe, described fitting seat is provided with locating stud, the discharge end of described urea delivery pipe is provided with urea nozzle, the end portion of described urea nozzle is furnished with at least two spray holes, the periphery of described urea nozzle is provided with nozzle heat-proof device, the nozzle heat-proof device arranged at urea nozzle place efficiently avoid the vaporization in advance of urea, improve the carburation by spraying effect of urea, and nozzle heat-proof device quality is light, and be multilayer insulation, therefore good heat-insulation effect, improve the quality of vent gas treatment, during use to urea delivery pipe also without any stress, contribute to protection urea delivery pipe.
Description
Technical field
The utility model relates to a kind of automobile SCR system equipment technical field, particularly relates to a kind of automobile SCR system urea feedway.
Background technique
In the SCR system of automobile, urea nozzle is positioned on gas exhaust piping, for eliminating material harmful to atmosphere environment in tail gas.Because the temperature in gas exhaust piping is very high, and too high temperature can make the urea in urea pipe vaporize too early, thus affects the treatment effect of tail gas.Common solution can arrange thermal shield in urea delivery pipe periphery, and load thermal insulation ceramics in thermal shield, just vaporized before spraying into gas exhaust piping in order to avoid urea liquid.Said structure is due to the filling of thermal insulation ceramics, nozzle cost and weight are increased all to some extent, and the air between thermal insulation ceramics and thermal shield can sharply expand in high-temperature exhaust pipe, larger pressure can be produced to urea delivery pipe, be unfavorable for that the long-term safety ensureing urea delivery pipe uses.
In addition, usual automobile SCR system connector is connected with urea line, connect in the side of connector and urea delivery pipe is set, because connector and the caliber of urea delivery pipe are difficult to accomplish identical, therefore easily occur in both joints connecting step, be therefore easy to make urea produce crystallization at this.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of good heat-insulation effect, can prevent urea from vaporizing in advance and the automobile SCR system urea feedway of crystallization.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of automobile SCR system urea feedway, comprise the urea delivery pipe for being connected with urea line, limited location snap ring is provided with around described urea delivery pipe periphery, thermal shield is equipped with in described urea delivery pipe periphery also stuffing box gland, described thermal shield is provided with fitting seat near one end of described limited location snap ring, described fitting seat fixed cover is loaded on the periphery of described urea delivery pipe, described fitting seat is provided with locating stud, the discharge end of described urea delivery pipe is provided with urea nozzle, the end portion of described urea nozzle is furnished with at least two spray holes, the periphery of described urea nozzle is provided with nozzle heat-proof device.
As preferred technological scheme, described nozzle heat-proof device comprises at least two-layer asbestos pipe being set in described urea nozzle periphery successively, described asbestos pipe two ends respectively shutoff are provided with mounting plate, the outlet end of described spray hole is located at the outside of described mounting plate, described mounting plate is set in the periphery of described urea delivery pipe, and described asbestos pipe two ends are tightly connected with corresponding described mounting plate respectively; Be provided with near the outside of the described mounting plate of the outlet end of described urea delivery pipe the heat insulation fluid cover that described spray hole buckled by cover, on described heat insulation fluid cover, corresponding described spray hole is provided with spray-hole.
As preferred technological scheme, described heat insulation fluid cover comprises the outer outlet body of tubular, the coaxial locating column arranged is provided with in the middle part of described outer outlet body, described locating column is provided with the locating slot coordinated with described urea nozzle end, and described locating column is provided with pilot hole corresponding with described spray hole and described spray-hole respectively.
As preferred technological scheme, described in adjacent two, between asbestos pipe, vacuum is arranged; Also for vacuum is arranged between described heat insulation fluid cover and described urea nozzle.
As preferred technological scheme, described in adjacent two, between asbestos pipe, be filled with inert gas; Also inert gas is filled with between described heat insulation fluid cover and described urea nozzle.
As preferred technological scheme, described thermal shield is set to by the radial cone-shaped hood near the side of described urea nozzle to opposite side being flaring.
Owing to have employed technique scheme, a kind of automobile SCR system urea feedway, comprise the urea delivery pipe for being connected with urea line, limited location snap ring is provided with around described urea delivery pipe periphery, thermal shield is equipped with in described urea delivery pipe periphery also stuffing box gland, described thermal shield is provided with fitting seat near one end of described limited location snap ring, described fitting seat fixed cover is loaded on the periphery of described urea delivery pipe, described fitting seat is provided with locating stud, the discharge end of described urea delivery pipe is provided with urea nozzle, the end portion of described urea nozzle is furnished with at least two spray holes, the periphery of described urea nozzle is provided with nozzle heat-proof device, the beneficial effects of the utility model are: the nozzle heat-proof device arranged at urea nozzle place efficiently avoid the vaporization in advance of urea, improve the carburation by spraying effect of urea, and nozzle heat-proof device quality is light, and be multilayer insulation, therefore good heat-insulation effect, improve the quality of vent gas treatment, during use to urea delivery pipe also without any stress, contribute to protection urea delivery pipe.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1;
In figure: 1-urea delivery pipe; 2-limited location snap ring; 3-thermal shield; 4-fitting seat; 5-locating stud; 6-urea nozzle; 7-spray hole; 8-asbestos pipe; 9-mounting plate; The heat insulation fluid cover of 10-; 101-outer outlet body; 102-locating column; 103-pilot hole; 11-spray-hole.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As depicted in figs. 1 and 2, a kind of automobile SCR system urea feedway, comprise the urea delivery pipe 1 for being connected with urea line, limited location snap ring 2 is provided with around described urea delivery pipe 1 periphery, the structure and described limited location snap ring 2 and described urea delivery pipe 1 are formed in one, be convenient to make, technique is simple.This embodiment reduces the setting of connector, thus avoid the possibility forming crystallization because of the junction surface between connector and urea delivery pipe 1.
Thermal shield 3 is equipped with in described urea delivery pipe 1 periphery also stuffing box gland, and described thermal shield 3 is set to, by the radial cone-shaped hood near the side of described urea nozzle 6 to opposite side being flaring, be convenient to mounting arrangements.Described thermal shield 3 is provided with fitting seat 4 near one end of described limited location snap ring 2, described fitting seat 4 fixed cover is loaded on the periphery of described urea delivery pipe 1, described fitting seat 4 is provided with locating stud 5, the discharge end of described urea delivery pipe 1 is provided with urea nozzle 6, the end portion of described urea nozzle 6 is furnished with at least two spray holes 7, and the periphery of described urea nozzle 6 is provided with nozzle heat-proof device.
Described nozzle heat-proof device in the present embodiment comprises at least two-layer asbestos pipe 8 being set in described urea nozzle 6 periphery successively, described asbestos pipe 8 two ends respectively shutoff are provided with mounting plate 9, the outlet end of described spray hole 7 is located at the outside of described mounting plate 9, described mounting plate 9 is set in the periphery of described urea delivery pipe 1, and described asbestos pipe 8 two ends are tightly connected with corresponding described mounting plate 9 respectively; Be provided with near the outside of the described mounting plate 9 of the outlet end of described urea delivery pipe 1 the heat insulation fluid cover 10 that described spray hole 7 buckled by cover, on described heat insulation fluid cover 10, corresponding described spray hole 7 is provided with spray-hole 11.Wherein said heat insulation fluid cover 10 comprises the outer outlet body 101 of tubular, the coaxial locating column 102 arranged is provided with in the middle part of described outer outlet body 101, described locating column 102 is provided with the locating slot coordinated with described urea nozzle 6 end, and described locating column 102 is provided with pilot hole 103 corresponding with described spray hole 7 and described spray-hole 11 respectively.Arranging of heat insulation fluid cover 10 can protect urea nozzle 6 effectively, and urea is synchronously vaporized when ejection, contributes to ensureing vent gas treatment effect.
Described in adjacent two, between asbestos pipe 8, vacuum is arranged; Also for vacuum is arranged between described heat insulation fluid cover 10 and described urea nozzle 6, described in certainly adjacent two, between asbestos pipe 8, be filled with inert gas; Also inert gas is filled with, as helium, argon gas etc. carry out heat insulation between described heat insulation fluid cover 10 and described urea nozzle 6.
The nozzle heat-proof device that the utility model is arranged at urea nozzle 6 place efficiently avoid the vaporization in advance of urea; improve the carburation by spraying effect of urea; and nozzle heat-proof device quality is light; and be multilayer insulation; therefore good heat-insulation effect; improve the quality of vent gas treatment, during use to urea delivery pipe 1 also without any stress, contribute to protection urea delivery pipe 1.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. an automobile SCR system urea feedway, it is characterized in that: comprise the urea delivery pipe for being connected with urea line, limited location snap ring is provided with around described urea delivery pipe periphery, thermal shield is equipped with in described urea delivery pipe periphery also stuffing box gland, described thermal shield is provided with fitting seat near one end of described limited location snap ring, described fitting seat fixed cover is loaded on the periphery of described urea delivery pipe, described fitting seat is provided with locating stud, the discharge end of described urea delivery pipe is provided with urea nozzle, the end portion of described urea nozzle is furnished with at least two spray holes, the periphery of described urea nozzle is provided with nozzle heat-proof device.
2. a kind of automobile SCR system urea feedway as claimed in claim 1, it is characterized in that: described nozzle heat-proof device comprises at least two-layer asbestos pipe being set in described urea nozzle periphery successively, described asbestos pipe two ends respectively shutoff are provided with mounting plate, the outlet end of described spray hole is located at the outside of described mounting plate, described mounting plate is set in the periphery of described urea delivery pipe, and described asbestos pipe two ends are tightly connected with corresponding described mounting plate respectively; Be provided with near the outside of the described mounting plate of the outlet end of described urea delivery pipe the heat insulation fluid cover that described spray hole buckled by cover, on described heat insulation fluid cover, corresponding described spray hole is provided with spray-hole.
3. a kind of automobile SCR system urea feedway as claimed in claim 2, it is characterized in that: described heat insulation fluid cover comprises the outer outlet body of tubular, the coaxial locating column arranged is provided with in the middle part of described outer outlet body, described locating column is provided with the locating slot coordinated with described urea nozzle end, and described locating column is provided with pilot hole corresponding with described spray hole and described spray-hole respectively.
4. a kind of automobile SCR system urea feedway as claimed in claim 3, is characterized in that: described in adjacent two, between asbestos pipe, vacuum is arranged; Also for vacuum is arranged between described heat insulation fluid cover and described urea nozzle.
5. a kind of automobile SCR system urea feedway as claimed in claim 3, is characterized in that: be filled with inert gas between asbestos pipe described in adjacent two; Also inert gas is filled with between described heat insulation fluid cover and described urea nozzle.
6. a kind of automobile SCR system urea feedway as described in claim as arbitrary in claim 1 to 5, is characterized in that: described thermal shield is set to by the radial cone-shaped hood near the side of described urea nozzle to opposite side being flaring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257924.XU CN204572139U (en) | 2015-04-27 | 2015-04-27 | A kind of automobile SCR system urea feedway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257924.XU CN204572139U (en) | 2015-04-27 | 2015-04-27 | A kind of automobile SCR system urea feedway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572139U true CN204572139U (en) | 2015-08-19 |
Family
ID=53864790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520257924.XU Active CN204572139U (en) | 2015-04-27 | 2015-04-27 | A kind of automobile SCR system urea feedway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572139U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105386831A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Nozzle in marine engine tail gas treatment system |
| CN106468203A (en) * | 2015-08-23 | 2017-03-01 | 浙江福爱电子有限公司 | A kind of SCR reductant nozzle |
| WO2022134756A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Engagement support structure for nozzle and protective sleeve |
-
2015
- 2015-04-27 CN CN201520257924.XU patent/CN204572139U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106468203A (en) * | 2015-08-23 | 2017-03-01 | 浙江福爱电子有限公司 | A kind of SCR reductant nozzle |
| CN105386831A (en) * | 2015-12-10 | 2016-03-09 | 广西玉柴机器股份有限公司 | Nozzle in marine engine tail gas treatment system |
| WO2022134756A1 (en) * | 2020-12-24 | 2022-06-30 | 江苏博迁新材料股份有限公司 | Engagement support structure for nozzle and protective sleeve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204572141U (en) | Automobile SCR system new urea spray nozzle device | |
| CN204572139U (en) | A kind of automobile SCR system urea feedway | |
| JP2015049036A5 (en) | ||
| CN204627712U (en) | A kind of novel heat-insulation urea nozzle device | |
| CN104984501A (en) | Remote video operation fire-fighting robot | |
| CN106481482B (en) | A kind of miniature liquid engine solar heat protection flow-guiding structure | |
| CN207437939U (en) | A kind of Duct fixing clamp assembly | |
| CN204572142U (en) | A kind of effectively insulating urea nozzle device | |
| CN203920420U (en) | A kind of fuel filler pipe assembly of counter-jetting resistance | |
| CN204572143U (en) | A kind of automobile SCR system urea nozzle device | |
| CN207370090U (en) | Electronic cigarette atomization device and electronic cigarette | |
| EP2910842A3 (en) | Station and method for supplying a flammable fuel fluid | |
| CN110870958A (en) | Storage tank fire extinguishing system and fire extinguishing method | |
| CN108195691B (en) | Internal pressure explosion test device for cladding tube | |
| CN203276831U (en) | Steam silencer | |
| CN106394938B (en) | Attitude control system thermal protection device of hypersonic-velocity and large-attack-angle reentry vehicle | |
| CN204572140U (en) | A kind of new urea spray nozzle device | |
| CN204320986U (en) | Spinning machine flame heating device | |
| CN207372533U (en) | A kind of band chromium carbide coating stainless steel small diameter tube welding protecting tool set-up | |
| CN210687302U (en) | Gas ventilation double-wall pipe with integrated fixed support | |
| CN208554098U (en) | A kind of reactor tank high-temperature steam discharge pipe | |
| CN206444785U (en) | Synchronous spray isolation and spraying absorption disposal freezing plant leaks the emergency system of ammonia | |
| CN107433131B (en) | Gas turbine denitration ammonia injection device and gas turbine | |
| CN216666916U (en) | Detachable insulating tube | |
| CN214808048U (en) | Horizontal dry powder jar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |