CN102606264A - Urea spray nozzle and processing method thereof - Google Patents
Urea spray nozzle and processing method thereof Download PDFInfo
- Publication number
- CN102606264A CN102606264A CN2012100714587A CN201210071458A CN102606264A CN 102606264 A CN102606264 A CN 102606264A CN 2012100714587 A CN2012100714587 A CN 2012100714587A CN 201210071458 A CN201210071458 A CN 201210071458A CN 102606264 A CN102606264 A CN 102606264A
- Authority
- CN
- China
- Prior art keywords
- urea
- taper
- spray nozzle
- conical sleeve
- exhaust tube
- 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.)
- Pending
Links
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a urea spray nozzle with a vacuum jacket. The urea spray nozzle comprises a spray hole, a conical sleeve and a urea pipeline, wherein the spray hole is arranged at the front end of the urea pipeline, and the conical sleeve is sleeved on the urea pipeline close to the spray hole. The urea spray nozzle is characterized in that a positioning exhaust tube is arranged at the tail end of the conical sleeve, a positioning tube is communicated with an inner cavity of the conical sleeve, and the conical sleeve is in vacuum packaging. The urea spray nozzle has the advantages that 1) heat-insulation ceramics do not need to be filled in the conical sleeve, the cost is lowered, and the weight is reduced; 2) an inner cavity of the sleeve is vacuumized, and no stress to the spray nozzle structure, caused by a situation that air in the jacket expands due to heating, exists; and 3) the heat insulation effect in a vacuum state is good, and the phenomenon that urea solution is gasified due to heating before being sprayed in the exhaust tube can be avoided effectively.
Description
Technical field
The present invention relates to a kind of urea nozzle and processing method thereof, relate in particular to a kind of air auxiliary type urea nozzle and processing method thereof.
Background technique
Existing air auxiliary type urea nozzle, its structure is as shown in Figure 1.This urea nozzle comprises spray orifice 1, taper 3, locating stud 6 and urea pipe 5, and described spray orifice 1 is arranged on the front end of described urea pipe 5, and described taper 3 is sleeved on the urea pipe 5 near spray orifice 1 place; Described locating stud 6 is arranged on the end of said taper 3, is used for urea nozzle is positioned at gas exhaust piping.Because the temperature in the gas exhaust piping is very high, and too high temperature can make the urea in the urea pipe 5 vaporize too early, thereby influences jeting effect.Usually, stuffed heat insulated ceramic 72 li of the inner chambers of taper 3, just vaporized before spraying into gas exhaust piping in order to avoid urea liquid.
Yet, because the filling of thermal insulation ceramics makes nozzle cost and weight all increase to some extent, and the sharply expansion in high-temperature exhaust pipe of the air between thermal insulation ceramics and the chuck, chuck is produced big pressure, be the latent stress failure mode.
Summary of the invention
What the present invention will solve is the above-mentioned defective that existing technology exists, and aims to provide a kind of low cost, light-weight design, more reliable urea nozzle.
The technological scheme that addresses the above problem employing is: a kind of urea nozzle; Comprise spray orifice, taper and urea pipe; Described spray orifice is arranged on the front end of described urea pipe, and described taper is sleeved on the urea pipe near spray orifice, it is characterized in that the end of said taper is provided with the location exhaust tube; And the inner chamber UNICOM of described positioning pipe and said taper, described taper vacuum package.
Of the present invention between taper and nozzle urea pipe no longer stuffed heat insulated pottery, but adopt vacuum encapsulation process, the air in the chuck is extracted out, form vacuum environment.
Urea nozzle of the present invention is by following method manufacturing: pack the taper cover into urea pipe near spray orifice; Then with taper) use the soldering processes good seal with urea pipe; Through the location exhaust tube air of taper inner chamber is extracted out again, will be located the bleeding point sealing of exhaust tube at last.
As further improvement of the present invention, adopt the location exhaust tube to substitute the conventional positioning pin, this location exhaust tube not only plays positioning action; Its relief opening of still vacuumizing simultaneously; After the air of taper inner chamber exhausted, with its end welded seal, still can play positioning action again.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is an existing urea structure of nozzle schematic representation.
Fig. 2 is the 3-D view of urea nozzle of the present invention.
Fig. 3 is the two dimension intention of urea nozzle of the present invention.
Fig. 4 is the sectional view of urea nozzle of the present invention.
Embodiment
With reference to accompanying drawing 2, Fig. 3 and Fig. 4; Urea nozzle of the present invention; Comprise spray orifice 1, taper 3 and urea pipe 5, described spray orifice 1 is arranged on the front end of described urea pipe 5, and described taper 3 is sleeved on the urea pipe 5 near spray orifice 1 place; The end of said taper 3 is provided with location exhaust tube 4; And inner chamber 2 UNICOMs of described location exhaust tube 4 and said taper 3, good seal between described taper 3 and the urea pipe 5, and vacuumize through locating exhaust tube 4.Taper 3 of the present invention is a vacuum sleeve, and it is heat insulation more easily under vacuum state, and does not have the stress that nozzle arrangements is produced because of the air expansion of cannula cavity 2 after being heated, and this reliability of structure is higher.
Urea nozzle of the present invention is by following method manufacturing: pack taper 3 covers into urea pipe 5 near spray orifice 1 place; Then taper 3 and urea pipe 5 are used the soldering processes good seal; Through location exhaust tube 4 air of taper inner chamber 2 is extracted out again, will be located bleeding point 8 sealings of exhaust tube 4 at last.
What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in the connotation scope of the present invention all fall within protection scope of the present invention.
Claims (2)
1. urea nozzle; Comprise spray orifice (1), taper (3) and urea pipe (5); Described spray orifice (1) is arranged on the front end of described urea pipe (5), and described taper (3) is sleeved on the urea pipe of locating near spray orifice (1) (5), it is characterized in that the end of said taper (3) is provided with location exhaust tube (4); And inner chamber (2) UNICOM of described positioning pipe (4) and said taper (3), described taper (3) vacuum package.
2. the processing method of a urea nozzle; It is characterized in that carrying out according to the following steps: pack taper (3) cover into urea pipe (5) to locating near spray orifice (1); Then taper (3) and urea pipe (5) are used the soldering processes good seal; Through location exhaust tube (4) air of taper inner chamber (2) is extracted out again, will be located bleeding point (8) sealing of exhaust tube (4) at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100714587A CN102606264A (en) | 2012-03-18 | 2012-03-18 | Urea spray nozzle and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100714587A CN102606264A (en) | 2012-03-18 | 2012-03-18 | Urea spray nozzle and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102606264A true CN102606264A (en) | 2012-07-25 |
Family
ID=46523968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100714587A Pending CN102606264A (en) | 2012-03-18 | 2012-03-18 | Urea spray nozzle and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102606264A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178411A (en) * | 2017-06-29 | 2017-09-19 | 杭州银轮科技有限公司 | Retractable gas helps formula urea nozzle |
| CN107178410A (en) * | 2017-06-14 | 2017-09-19 | 北京福田戴姆勒汽车有限公司 | The urea playpipe of exhaust treatment system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0326923A1 (en) * | 1988-02-03 | 1989-08-09 | kabelmetal electro GmbH | Conduit for the transport of cyrogenic fluids |
| US6883549B2 (en) * | 2002-05-15 | 2005-04-26 | Nexans | Conduit for the transport of cyrogenic media |
| CN1651728A (en) * | 2004-02-05 | 2005-08-10 | 赫多特普索化工设备公司 | Injection nozzle for purification |
| CN101886565A (en) * | 2010-07-15 | 2010-11-17 | 南通星维油泵油嘴有限公司 | Nozzle in tail gas treatment system of diesel engine |
| CN102257304A (en) * | 2008-10-16 | 2011-11-23 | 伍德沃德公司 | Multi-tubular fluid transfer conduit |
| CN202596847U (en) * | 2012-03-18 | 2012-12-12 | 杭州银轮科技有限公司 | Urea nozzle |
-
2012
- 2012-03-18 CN CN2012100714587A patent/CN102606264A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0326923A1 (en) * | 1988-02-03 | 1989-08-09 | kabelmetal electro GmbH | Conduit for the transport of cyrogenic fluids |
| US6883549B2 (en) * | 2002-05-15 | 2005-04-26 | Nexans | Conduit for the transport of cyrogenic media |
| CN1651728A (en) * | 2004-02-05 | 2005-08-10 | 赫多特普索化工设备公司 | Injection nozzle for purification |
| CN102257304A (en) * | 2008-10-16 | 2011-11-23 | 伍德沃德公司 | Multi-tubular fluid transfer conduit |
| CN101886565A (en) * | 2010-07-15 | 2010-11-17 | 南通星维油泵油嘴有限公司 | Nozzle in tail gas treatment system of diesel engine |
| CN202596847U (en) * | 2012-03-18 | 2012-12-12 | 杭州银轮科技有限公司 | Urea nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178410A (en) * | 2017-06-14 | 2017-09-19 | 北京福田戴姆勒汽车有限公司 | The urea playpipe of exhaust treatment system |
| CN107178411A (en) * | 2017-06-29 | 2017-09-19 | 杭州银轮科技有限公司 | Retractable gas helps formula urea nozzle |
| CN107178411B (en) * | 2017-06-29 | 2023-09-08 | 杭州银轮科技有限公司 | Freely telescopic air-assisted urea nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204043843U (en) | Differential pressure pick-up | |
| CN104728642B (en) | Manufacturing technology for liquid LED lamp | |
| CN202596847U (en) | Urea nozzle | |
| CN107584771A (en) | Solid propellant rocket internal insulation forming method | |
| CN102606264A (en) | Urea spray nozzle and processing method thereof | |
| CN207335505U (en) | A kind of charging device of liquid metal high temperature pulsating heat pipe | |
| CN204572141U (en) | Automobile SCR system new urea spray nozzle device | |
| CN203431483U (en) | Low-temperature heat-insulation gas cylinder interlayer vacuumizing device | |
| CN205243430U (en) | Aerogel heat insulation oil pipe | |
| CN205078195U (en) | Bimetal heat preservation oil pipe | |
| CN103419005A (en) | Small heat pipe manufacturing process | |
| CN102040186B (en) | High vacuum ceramic LCC packaging method | |
| CN204572139U (en) | A kind of automobile SCR system urea feedway | |
| CN102861872A (en) | Device and casting method thereof for elongated spiral holes through lost foam casting | |
| CN203534741U (en) | Piezoresistive pressure sensor integrated base with oil charge pipe | |
| CN204574575U (en) | A kind of solar pipe joint design | |
| CN105934007B (en) | A kind of packaging method of sheathed heater | |
| CN203597831U (en) | Vacuum bottle plug easy to take out | |
| CN108817879A (en) | A kind of production method of the heat pipe without annealing | |
| CN210387882U (en) | Vacuum air pumping system | |
| US9612038B2 (en) | Method for manufacturing all-glass solar collector tube without exhaust tail tube | |
| CN103759096A (en) | Vacuum heat-insulated pipe | |
| CN202302278U (en) | Valve rod corrosion-resistant stop valve | |
| CN203322514U (en) | Sealing device for leading out of test wire in cavity of pressure vessel under high-temperature state | |
| CN203731082U (en) | Rear end supporting structure for gas bottle of automobile liquefied natural gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |