CN202500641U - Fixing device for SCR system urea nozzle - Google Patents
Fixing device for SCR system urea nozzle Download PDFInfo
- Publication number
- CN202500641U CN202500641U CN2012200392998U CN201220039299U CN202500641U CN 202500641 U CN202500641 U CN 202500641U CN 2012200392998 U CN2012200392998 U CN 2012200392998U CN 201220039299 U CN201220039299 U CN 201220039299U CN 202500641 U CN202500641 U CN 202500641U
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- CN
- China
- Prior art keywords
- nozzle
- urea nozzle
- urea
- fixing device
- carrier
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a fixing device for an SCR system urea nozzle. The fixing device for the SCR system urea nozzle comprises a nozzle seat which is sleeved at a slot of the urea nozzle, and a fastener which is matched with the nozzle seat, wherein the nozzle seat is sleeved at the slot of the urea nozzle. The nozzle seat and the urea nozzle are fastened by the fastener, so the urea nozzle can be dismounted conveniently; mounting efficiency and maintainability can be improved; and connection consistency and generality of urea nozzles in different forms and SCR exhaust pipes can be improved.
Description
Technical field
The utility model relates to a kind of SCR system urea nozzle fixing device.
Background technique
Present most of urea nozzle seat directly is welded on the SCR outlet pipe, and has strict size tolerance requirements.There is following shortcoming in the mode of this direct welding: the difficult dismounting of urea nozzle; Need carry out the detailed arrangement design to the urea nozzle seat; Better meet the requirement of SCR systematic function; Need consider the setting angle and the elbow radius of urea nozzle seat simultaneously, and aqueous solution of urea is prone to form depositional phenomenon such as crystallization or calculus at urea nozzle seat place.
Summary of the invention
The technical problem that the utility model will solve provides a kind of detachable SCR system urea nozzle fixing device.
For solving the problems of the technologies described above, the utility model comprises nozzle carrier that is sleeved on urea nozzle draw-in groove place and the fastening piece that cooperates with nozzle carrier.
After adopting said structure; Nozzle carrier is sleeved on urea nozzle draw-in groove place, with fastening piece that nozzle carrier and urea nozzle is fastening then, urea nozzle for convenience detach; Improve installation efficiency and maintainability, improve conformity and versatility that different urea nozzle forms are connected with the SCR outlet pipe.
The internal diameter on said nozzle carrier top and the external diameter of urea nozzle draw-in groove adapt, and the internal diameter of bottom is stuck on the nozzle carrier urea nozzle less than the external diameter of urea nozzle draw-in groove, are difficult for to lower slider.
Said fastening piece is the bolt of hollow, and nozzle carrier top is provided with the internal thread that cooperates with the bolt outside thread, with bolt sleeve on urea nozzle, then with nozzle carrier through being threaded fixation and for convenience detach.
Said nozzle carrier and urea nozzle limit the urea nozzle unrestricted motion through the locating stud location.
Said nozzle carrier is fixed on the connecting plate, increases fixed-area, and is fixed, strengthens the adjustability of nozzle carrier setting angle.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain:
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1, SCR system urea nozzle fixing device comprises nozzle carrier 3 that is sleeved on urea nozzle draw-in groove 2 places and the fastening piece that cooperates with nozzle carrier 3.Fastening piece is the bolt 4 of hollow, and nozzle carrier 3 tops are provided with the internal thread that cooperates with bolt 4 outside threads, and bolt 4 is enclosed within on the urea nozzle 1, then with nozzle carrier 3 through being threaded, make urea nozzle 1 fixation and for convenience detach.The internal diameter on nozzle carrier 3 tops is slightly larger than the external diameter of urea nozzle draw-in groove 2, and the bottom internal diameter is stuck on the nozzle carrier 3 urea nozzle 1 less than the external diameter of urea nozzle draw-in groove 2, is difficult for to lower slider.Nozzle carrier 3 bottom internal diameters make things convenient for the suit and the dismounting of urea nozzle greater than the maximum outside diameter of urea nozzle 1 hypomere.Nozzle carrier 3 is located through locating stud 6 with urea nozzle 1,1 unrestricted motion of restriction urea nozzle.For increasing fixed-area, fixed, the adjustability of enhancing nozzle carrier 3 setting angles is fixed on nozzle carrier 3 on the leg-of-mutton connecting plate 5.
During use; Earlier connecting plate 5 and nozzle carrier 3 are welded on the SCR outlet pipe, through locating stud 6 and bolt 4 urea nozzle 1 are fixed on the nozzle carrier 3 then, because bolt 4 and nozzle carrier 3 are through being threaded; Urea nozzle 1 is quick detachable, improves installation efficiency and maintainability.Connecting plate 5 is big with the area of contact of SCR outlet pipe; So the tilt fixing selectable range of connecting plate 5 is big; Make the setting angle adjustability of nozzle carrier 3 strong, aqueous solution of urea can not form depositional phenomenon such as crystallization or calculus at nozzle carrier 3 places, improves the stability of SCR after-treatment system; Strengthen the stability of motor, and the conformity that is connected with the SCR outlet pipe of different urea nozzle form and versatility are greatly improved and improve.
Claims (5)
1. SCR system urea nozzle fixing device is characterized in that it comprises to be sleeved on nozzle carrier (3) that urea nozzle draw-in groove (2) locates and the fastening piece that cooperates with nozzle carrier (3).
2. SCR according to claim 1 system urea nozzle fixing device is characterized in that the internal diameter on said nozzle carrier (3) top and the external diameter of urea nozzle draw-in groove (2) adapt, and the internal diameter of bottom is less than the external diameter of urea nozzle draw-in groove (2).
3. SCR according to claim 1 system urea nozzle fixing device is characterized in that said fastening piece is the bolt (4) of hollow, and nozzle carrier (3) top is provided with the internal thread that cooperates with bolt (4) outside thread.
4. according to each described SCR system urea nozzle fixing device of claim 1 to 3, it is characterized in that said nozzle carrier (3) and urea nozzle (1) are through locating stud (6) location.
5. SCR according to claim 4 system urea nozzle fixing device is characterized in that said nozzle carrier (3) is fixed on the connecting plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200392998U CN202500641U (en) | 2012-02-08 | 2012-02-08 | Fixing device for SCR system urea nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200392998U CN202500641U (en) | 2012-02-08 | 2012-02-08 | Fixing device for SCR system urea nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500641U true CN202500641U (en) | 2012-10-24 |
Family
ID=47037256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200392998U Expired - Lifetime CN202500641U (en) | 2012-02-08 | 2012-02-08 | Fixing device for SCR system urea nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500641U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272728A (en) * | 2013-06-09 | 2013-09-04 | 潍柴动力股份有限公司 | Silicon controlled rectifier (SCR) system and urea spray nozzle thereof |
| CN105604654A (en) * | 2015-12-25 | 2016-05-25 | 潍柴动力股份有限公司 | Urea nozzle seat and nozzle device |
| CN105673159A (en) * | 2016-02-02 | 2016-06-15 | 潍柴动力股份有限公司 | Engine exhaust system and engine applying same |
| WO2019011034A1 (en) * | 2017-07-11 | 2019-01-17 | 天纳克（苏州）排放系统有限公司 | Exhaust gas after-treatment device |
-
2012
- 2012-02-08 CN CN2012200392998U patent/CN202500641U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272728A (en) * | 2013-06-09 | 2013-09-04 | 潍柴动力股份有限公司 | Silicon controlled rectifier (SCR) system and urea spray nozzle thereof |
| CN103272728B (en) * | 2013-06-09 | 2017-01-25 | 潍柴动力股份有限公司 | Silicon controlled rectifier (SCR) system and urea spray nozzle thereof |
| CN105604654A (en) * | 2015-12-25 | 2016-05-25 | 潍柴动力股份有限公司 | Urea nozzle seat and nozzle device |
| CN105604654B (en) * | 2015-12-25 | 2018-08-07 | 潍柴动力股份有限公司 | A kind of urea nozzle seat and spray nozzle device |
| CN105673159A (en) * | 2016-02-02 | 2016-06-15 | 潍柴动力股份有限公司 | Engine exhaust system and engine applying same |
| WO2019011034A1 (en) * | 2017-07-11 | 2019-01-17 | 天纳克（苏州）排放系统有限公司 | Exhaust gas after-treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |