CN204225976U - A kind of nozzle structure for SCR ejecting system - Google Patents
A kind of nozzle structure for SCR ejecting system Download PDFInfo
- Publication number
- CN204225976U CN204225976U CN201420636308.0U CN201420636308U CN204225976U CN 204225976 U CN204225976 U CN 204225976U CN 201420636308 U CN201420636308 U CN 201420636308U CN 204225976 U CN204225976 U CN 204225976U
- Authority
- CN
- China
- Prior art keywords
- shower nozzle
- head body
- positioning disk
- socketed
- ejecting system
- 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
Abstract
The utility model discloses a kind of nozzle structure for SCR ejecting system, it comprises head body, wherein, one end of described head body is that it offers several spray holes dispersed at an angle to hydrojet end, the other end is socketed with connecting tube, and the middle part of described head body is socketed with positioning disk, the side of described positioning disk is socketed shower nozzle cover outward in the hydrojet end of described head body, and whole shower nozzle is installed on outlet pipe by shower nozzle cover and positioning disk.The ejection end of the above-mentioned nozzle structure head body for SCR ejecting system is made up of multiple spray hole of dispersing, and while ensure that urea injecting quantity, what improve injection fluid column disperses space, reaches good atomizing effect; The contact of shower nozzle pipeline and high-temperature exhaust air had both been isolated in the setting of shower nozzle cover, had certain protective role to the urea liquid just going out shower nozzle simultaneously, avoided the exhaust gas recirculation rushing nozzle of outlet pipe, made shower nozzle be not easy sticky urea crystals.
Description
Technical field
The utility model relates to SCR ejecting system, particularly relates to a kind of nozzle structure for SCR ejecting system.
Background technique
Referring to for selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction) is arranged in diesel engine automobile air exhausting system, and the NOx in diesel emission is catalysed and reduced into N
2and O
2catalytic reduction device, select aqueous solution of urea as reducing agent.Aqueous solution of urea is ejected in the outlet pipe of catalyzer upstream, and under the effect of exhaust gas temperature and air-flow, hydrolysis is produced as CO
2and ammonia, NOx is reduced into free of contamination nitrogen and water as reducing agent by ammonia.Urea liquid is according to engine operating condition quantitative injection.
SCR ejecting system is the important component part of SCR aftertreatment system, the critical component of its shower nozzle whole SCR ejecting system especially, at present, and the shortcoming of the existing difference of the shower nozzle ubiquity atomizing effect for SCR ejecting system and easy crystallization.
Model utility content
The purpose of this utility model is to provide a kind of nozzle structure for SCR ejecting system, and it is good and the feature of urea crystals not easily occurs that it has atomizing effect, to solve in prior art for the problems referred to above that the shower nozzle of SCR ejecting system exists.
For reaching this object, the utility model by the following technical solutions:
A kind of nozzle structure for SCR ejecting system, it comprises head body, wherein, one end of described head body is that it offers several spray holes dispersed at an angle to hydrojet end, the other end is socketed with connecting tube, and the middle part of described head body is socketed with positioning disk, the side of described positioning disk is socketed shower nozzle cover outward in the hydrojet end of described head body, and whole shower nozzle is installed on outlet pipe by shower nozzle cover and positioning disk.
Especially, described positioning disk offers the cover access slot coordinating shower nozzle cover external diameter, one end of described shower nozzle cover is arranged at cover access slot inner sleeve and is connected to outside the hydrojet end of head body.
Especially, on described positioning disk, correspondence is provided with at least two mounting holes.
The beneficial effects of the utility model are, compared with prior art the described nozzle structure for SCR ejecting system has the following advantages:
1) ejection end of head body is made up of multiple spray hole of dispersing, while ensure that urea injecting quantity, what improve injection fluid column disperses space, reach good atomizing effect, jeting effect can be optimized by the number of change spray hole, size and dispersion angle simultaneously, reach the object of mating different motor.
2) the hydrojet end of head body is all arranged in shower nozzle cover except spray hole; both the contact of shower nozzle pipeline and high-temperature exhaust air had been isolated; there is certain protective role to the urea liquid just going out shower nozzle simultaneously; avoid the exhaust gas recirculation rushing nozzle of outlet pipe; shower nozzle is made to be not easy sticky urea crystals; utilize shower nozzle cover cylindrical to locate simultaneously, ensure the mounting point of shower nozzle.
3) head body is directly connected with connecting tube, avoids too much pipeline and connects, reduce the circulating resistance of pipeline, decrease the solder joint of sleeve pipe soldering simultaneously, improve system reliability, reduce cost.
Accompanying drawing explanation
Fig. 1 is the plan view of the nozzle structure for SCR ejecting system that the utility model embodiment 1 provides;
Fig. 2 is the side view of the nozzle structure for SCR ejecting system that the utility model embodiment 1 provides;
Fig. 3 be in Fig. 2 A-A to sectional drawing.
In figure:
1, head body; 2, spray hole; 3, connecting tube; 4, positioning disk; 5, mounting hole; 6, shower nozzle cover; 7, access slot is overlapped.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of nozzle structure for SCR ejecting system comprises head body 1, wherein, one end of described head body 1 is that it offers several spray holes 2 dispersed at an angle to hydrojet end, the other end is socketed with connecting tube 3, and the middle part of described head body 1 is socketed with positioning disk 4, and on described positioning disk, correspondence is provided with two mounting holes 5.The hydrojet end of described head body 1 is socketed shower nozzle cover 6 outward, described positioning disk 4 offers the cover access slot 7 coordinating shower nozzle cover 6 external diameter, and one end of described shower nozzle cover 6 is arranged in cover access slot 7 and is socketed on outside the hydrojet end of head body 1.Whole shower nozzle is installed on outlet pipe by shower nozzle cover 6 and positioning disk 4.
Above-mentioned nozzle structure can optimize jeting effect by the number of change spray hole 2, size and dispersion angle, reaches the object of mating different motor.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model does not limit by above-mentioned example; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various change and change, and these changes and change 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 (3)
1. the nozzle structure for SCR ejecting system, it comprises head body, it is characterized in that, one end of described head body is that it offers several spray holes dispersed at an angle to hydrojet end, the other end is socketed with connecting tube, and the middle part of described head body is socketed with positioning disk, the side of described positioning disk is socketed shower nozzle cover outward in the hydrojet end of described head body, and whole shower nozzle is installed on outlet pipe by shower nozzle cover and positioning disk.
2. the nozzle structure for SCR ejecting system according to claim 1, is characterized in that, described positioning disk offers the cover access slot coordinating shower nozzle cover external diameter, and one end of described shower nozzle cover is arranged at cover access slot inner sleeve and is connected to outside the hydrojet end of head body.
3. the nozzle structure for SCR ejecting system according to claim 1 and 2, is characterized in that, on described positioning disk, correspondence is provided with at least two mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636308.0U CN204225976U (en) | 2014-10-29 | 2014-10-29 | A kind of nozzle structure for SCR ejecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636308.0U CN204225976U (en) | 2014-10-29 | 2014-10-29 | A kind of nozzle structure for SCR ejecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225976U true CN204225976U (en) | 2015-03-25 |
Family
ID=52924083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636308.0U Active CN204225976U (en) | 2014-10-29 | 2014-10-29 | A kind of nozzle structure for SCR ejecting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204225976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343506A (en) * | 2014-10-29 | 2015-02-11 | 凯龙高科技股份有限公司 | Sprayer structure used for SCR injection system |
-
2014
- 2014-10-29 CN CN201420636308.0U patent/CN204225976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343506A (en) * | 2014-10-29 | 2015-02-11 | 凯龙高科技股份有限公司 | Sprayer structure used for SCR injection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106523092B (en) | The conical surface type eddy flow urea mixing devices of page two | |
| CN204312165U (en) | Engine exhaust after-treatment system | |
| EP2539559A1 (en) | Method, system and apparatus for liquid injection into a gas system | |
| CN106523091B (en) | Page window type eddy flow urea mixing device | |
| CN105156181A (en) | Integrated nozzle type SCR catalysis silencer | |
| CN205714382U (en) | Engine exhaust aftertreatment system | |
| CN205190012U (en) | Cartridge SCR aftertreatment hybrid chamber | |
| CN102691553A (en) | Air-assisting type SCR (Selective Catalyst Reaction) system | |
| CN204225976U (en) | A kind of nozzle structure for SCR ejecting system | |
| CN204572125U (en) | A kind of diesel engine vent gas cleaning system | |
| CN105386831A (en) | Nozzle in marine engine tail gas treatment system | |
| CN202611818U (en) | Air-assisted selective catalytic reduction (SCR) system | |
| CN102748106A (en) | Urea nozzle of SCR (Selective Catalytic Reduction) system and mounting structure of urea nozzle | |
| CN108150255B (en) | Treating fluid mixing device for vehicle tail gas treatment | |
| CN102852604A (en) | Urea injection device for tail gas denitration selective catalytic reduction (SCR) system of marine high-power diesel engine | |
| CN208718764U (en) | A kind of urea pump of no air auxiliary | |
| CN207634150U (en) | A kind of metering injector of the spliced cooling jacket of band | |
| CN207686806U (en) | Vehicle tail gas processing urea mixing device | |
| CN204357539U (en) | Gas auxiliary internal-combustion engine SCR is with the shower nozzle of atomizing effect | |
| CN205779138U (en) | Engine exhaust aftertreatment assembly | |
| CN106437967B (en) | Honeycomb type eddy flow urea mixing device | |
| CN202250315U (en) | Diesel engine SCR (Semiconductor Control Rectifier) atomizer for air assistant manner | |
| CN202811020U (en) | Urea jetting device of high-power diesel engine tail gas denitration selective catalytic reduction (SCR) system for ship | |
| CN202645690U (en) | Urea nozzle of SCR (Selective Catalytic Reduction) system and mounting structure thereof | |
| CN206329370U (en) | A kind of urea injector of axially injection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |