CN206290310U - Split type urea measuring jet structure - Google Patents
Split type urea measuring jet structure Download PDFInfo
- Publication number
- CN206290310U CN206290310U CN201621057193.5U CN201621057193U CN206290310U CN 206290310 U CN206290310 U CN 206290310U CN 201621057193 U CN201621057193 U CN 201621057193U CN 206290310 U CN206290310 U CN 206290310U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- swirl flow
- shower nozzle
- nozzle
- flow nozzle
- 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 is related to a kind of split type urea measuring jet structure, it includes valve rod, sheath and swirl flow nozzle, swirl flow nozzle is fixed with inside the bottom of sheath, offer swirl flow nozzle mesopore axially along in swirl flow nozzle, spray orifice is offered in the lower end of swirl flow nozzle, it is connected by inner sealing surface between the upper end wall body of spray orifice and the bottom wall body of swirl flow nozzle mesopore, in the outer wall medium position of swirl flow nozzle shower nozzle annular groove is offered along its circumference, shower nozzle vertical slot is circumferentially offered in the outer wall of the swirl flow nozzle of shower nozzle upside of the ring groove, the bottom of shower nozzle vertical slot connects with shower nozzle annular groove, whirl hole is offered on the swirl flow nozzle of shower nozzle annular groove location.The utility model has the advantages that to be easy to processing and manufacturing, critical size and tolerance is easily controllable and performance is good.
Description
Technical field
The utility model is related to a kind of nozzle arrangements, and the utility model is more particularly, to a kind of split type urea measuring jet
Structure.
Background technology
There are many exhaust gas aftertreatment systems for reducing I. C. engine exhaust pollutant in the prior art, wherein, SCR
（Selective Catalytic Reduction）Urea injection system is used as the exhaust aftertreatment for reducing nox in exhaust
One of device, it has also become medium and heavy car meets the mainstream technology scheme of state IV and above Abgasgesetz.Its principle is by that will urinate
Plain solution is spurted into diesel exhaust gas, under high temperature and catalyst action, nox in exhaust is reduced into nitrogen and water
Discharge.Urea liquid is spurted into blast pipe by metering units, and metering units directly affect the transformation efficiency of nitrogen oxides, are
Determine discharge whether important device up to standard.
Urea metering units have two kinds of forms of pressure type and swirling flow atomizing mode, due to being low-pressure fuel injection, pressure type presence
Atomization quality is poor, atomization uniformity is difficult to ensure that, injection aperture is small and susceptible to plugging shortcoming, and existing swirling flow atomizing mode is most
Type of Welding is pressed using split, causes valve element to be difficult to ensure that with seat surface sealing, it is high to processing and welding positioning process requirement
Problem.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided one kind is easy to processing and manufacturing, key
Size and the split type urea measuring jet structure that tolerance is easily controllable and performance is good.
According to the technical scheme that the utility model is provided, a kind of split type conical surface seal type urea measuring jet knot
Structure, including valve rod, sheath and swirl flow nozzle, swirl flow nozzle is fixed with inside the bottom of sheath, in swirl flow nozzle along
Its axial direction offers swirl flow nozzle mesopore, and spray orifice is offered in the lower end of swirl flow nozzle, and upper end wall body and the eddy flow of spray orifice spray
It is connected by inner sealing surface between the bottom wall body of head mesopore, annular protrusion is connected with the inwall of sheath, in ring
It is slidingly sealed in the raised centre bore of shape and is connected with valve rod, the bottom of valve rod has external seal face, external seal face and interior sealing
Face coordinates, and offers valve rod runner from top to bottom axially along in valve rod, and valve rod runner is blind hole, and annular protrusion will shield
Cavity between the inner circle of set and the cylindrical of valve rod is separated into solution storage epicoele and stores cavity of resorption with solution, is offered on valve rod
Through hole on solution valve rod of the storage epicoele with valve rod flow passage is offered solution storage cavity of resorption and valve rod stream on valve rod
The valve rod lower through-hole of road connection, offers shower nozzle annular groove, in shower nozzle in the outer wall medium position of swirl flow nozzle along its circumference
The outer wall of the swirl flow nozzle of upside of the ring groove circumferentially offers shower nozzle vertical slot, bottom and the shower nozzle annular groove of shower nozzle vertical slot
Connection, whirl hole is offered on the swirl flow nozzle of shower nozzle annular groove location.
Preferably, the external seal face be it is upper big and under small outer conical surface, inner sealing surface is small for big and lower mouth suitable for reading
Internal conical surface.
Preferably, the section of the shower nozzle vertical slot is semicircle；The section of shower nozzle annular groove is semicircle.
Preferably, through hole is opened up along the radial direction of valve rod on the valve rod；Valve rod lower through-hole along valve rod footpath
To being opened up.
Preferably, the whirl hole has 2 ~ 6 and is evenly distributed.
A kind of split type ball seal type urea measuring jet structure, including valve rod, sheath and swirl flow nozzle, in sheath
Swirl flow nozzle is fixed with inside bottom, swirl flow nozzle mesopore is offered axially along in swirl flow nozzle, in swirl flow nozzle
Lower end offer spray orifice, between the upper end wall body of spray orifice and the bottom wall body of swirl flow nozzle mesopore pass through inner sealing surface phase
Even, valve rod is installed in sheath, solution storage chamber is formed between cylindrical and sheath the inner circle of valve rod, in the lower end of valve rod
Portion is fixed with sealed spheroid, and sealed spheroid coordinates with inner sealing surface, offers valve rod from top to bottom axially along in valve rod
Runner, the bottom of valve rod runner is blocked by sealed spheroid, is offered on valve rod and connects solution storage chamber and valve rod runner
Logical stem through-hole, offers shower nozzle annular groove, in shower nozzle annular groove in the outer wall medium position of swirl flow nozzle along its circumference
The outer wall of the swirl flow nozzle of top circumferentially offers shower nozzle vertical slot, and the bottom of shower nozzle vertical slot connects with shower nozzle annular groove,
Whirl hole is offered on the swirl flow nozzle of shower nozzle annular groove location.
Preferably, the section of the shower nozzle vertical slot is semicircle；The section of shower nozzle annular groove is semicircle.
Preferably, the section of the shower nozzle vertical slot is semicircle；The section of shower nozzle annular groove is semicircle.In described
Sealing surface is the small internal conical surface of big and lower mouth suitable for reading.
Preferably, the section of the shower nozzle vertical slot is semicircle；The section of shower nozzle annular groove is semicircle.The valve
Rod through-hole is opened up along the radial direction of valve rod.
Preferably, the section of the shower nozzle vertical slot is semicircle；The section of shower nozzle annular groove is semicircle.The rotation
Discharge orifice has 2 ~ 6 and is evenly distributed.
The utility model has the advantages that to be easy to processing and manufacturing, critical size and tolerance is easily controllable and performance is good.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the enlarged drawing of E parts in Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment 2.
Fig. 4 is the enlarged drawing of F parts in Fig. 3.
Fig. 5 is the stereo amplification figure of swirl flow nozzle in the utility model embodiment 2.
Specific embodiment
With reference to specific embodiment, the utility model is described in further detail.
Embodiment 1
As depicted in figs. 1 and 2, a kind of split type conical surface seal type urea measuring jet structure, including valve rod 128, sheath
132 with swirl flow nozzle 133, swirl flow nozzle 133 is fixed with inside the bottom of sheath 132, along it in the swirl flow nozzle 133
Swirl flow nozzle mesopore 146 axially is offered, spray orifice 145, the upper end wall of spray orifice 145 are offered in the lower end of swirl flow nozzle 133
It is connected by inner sealing surface 141 between body and the bottom wall body of swirl flow nozzle mesopore 146, the one on the inwall of sheath 132
Annular protrusion is connected with, is slidingly sealed in the centre bore of annular protrusion and is connected with valve rod 128, the bottom of valve rod 128 has
External seal face 148, external seal face 148 coordinates with inner sealing surface 141, is offered from top to bottom axially along in valve rod 128
Valve rod runner 131, valve rod runner 131 is blind hole, and annular protrusion by the inner circle of sheath 132 and valve rod 128 it is cylindrical between
Cavity is separated into solution storage epicoele 139A and stores cavity of resorption 139B with solution, is offered on valve rod 128 and for solution to store epicoele
Through hole 130A on the valve rod that 139A is connected with valve rod runner 131, offers on valve rod 128 and for solution to store cavity of resorption 139B and valve
The valve rod lower through-hole 130B of the connection of bar runner 131, shower nozzle is offered in the outer wall medium position of swirl flow nozzle 133 along its circumference
Annular groove 136, shower nozzle vertical slot 137, shower nozzle are circumferentially offered in the outer wall of the swirl flow nozzle 133 of the top of shower nozzle annular groove 136
The bottom of vertical slot 137 connects with shower nozzle annular groove 136, is offered on the swirl flow nozzle 133 of the position of shower nozzle annular groove 136
Whirl hole 138.
The external seal face 148 for upper big under small outer conical surface, inner sealing surface 141 for big and lower mouth suitable for reading it is small in
Circular conical surface.
The section of the shower nozzle vertical slot 137 is semicircle；The section of shower nozzle annular groove 136 is semicircle.
Through hole 130A is opened up along the radial direction of valve rod 128 on the valve rod；Valve rod lower through-hole 130B is along valve rod 128
Radial direction opened up.
The whirl hole 138 has 2 ~ 6 and is evenly distributed.
During work, the urea liquid with certain pressure come in by nozzle inlet 109, into feed pathway 140, stream
Through the stream valve rod road 131 that bushing 124 and valve rod spring 116 enter on valve rod 128, stored into solution through through hole 130A on valve rod
Epicoele 139A, because the outer surface of valve rod 128 and the centre bore of annular protrusion are that couple coordinates, the effect with flow blocking, urea
Solution continues on through valve rod runner 131, and entering solution by valve rod lower through-hole 130B stores cavity of resorption 139B, and through on swirl flow nozzle 133
Shower nozzle vertical slot 137 and shower nozzle annular groove 136 be full of whirl hole 138, and be gradually filled with solution storage cavity of resorption 139B, work as electromagnetism
Valve member is powered, and armature 127 drives the upward lifting of whole valve rod 128, and inner sealing surface 141 is left in external seal face 148, and nozzle is beaten
Open, because the inner surface of the swirl flow nozzle mesopore 146 of outer surface and the swirl flow nozzle 133 of valve rod 128 is that couple coordinates, with every
The effect of stream, urea liquid is mainly entered in swirl flow nozzle mesopore 146 by whirl hole 138, forms liquid cyclone, logical through convergence
Road 144 accelerates, and is most atomized through spray orifice 145 afterwards and sprayed.
Embodiment 2
As shown in Fig. 3, Fig. 4 and Fig. 5, a kind of split type ball seal type urea measuring jet structure, including valve rod 128,
Sheath 132 and swirl flow nozzle 133, are fixed with swirl flow nozzle 133, the edge in swirl flow nozzle 133 inside the bottom of sheath 132
Its axial direction and offer swirl flow nozzle mesopore 146, spray orifice 145, the upper end of spray orifice 145 are offered in the lower end of swirl flow nozzle 133
It is connected by inner sealing surface 141 between portion's wall body and the bottom wall body of swirl flow nozzle mesopore 146, is provided with sheath 132
Valve rod 128, forms solution storage chamber 139, in the bottom of valve rod 128 between the inner circle of the cylindrical and sheath 132 of valve rod 128
Sealed spheroid 129 is fixed with, sealed spheroid 129 coordinates with inner sealing surface 141, in valve rod 128 axially along from top to bottom
Offer valve rod runner 131, the bottom of valve rod runner 131 is blocked by sealed spheroid 129, offered on valve rod 128 by
The stem through-hole 130 that solution storage chamber 139 is connected with valve rod runner 131, swirl flow nozzle 133 outer wall medium position along it
Shower nozzle annular groove 136 circumferentially is offered, shower nozzle is circumferentially offered in the outer wall of the swirl flow nozzle 133 of the top of shower nozzle annular groove 136
Vertical slot 137, the bottom of shower nozzle vertical slot 137 connects with shower nozzle annular groove 136, in the eddy flow of the position of shower nozzle annular groove 136
Whirl hole 138 is offered on shower nozzle 133.
The section of the shower nozzle vertical slot 137 is semicircle；The section of shower nozzle annular groove 136 is semicircle.
The section of the shower nozzle vertical slot 137 is semicircle；The section of shower nozzle annular groove 136 is semicircle.It is described interior close
Front cover 141 is the small internal conical surface of big and lower mouth suitable for reading.
The section of the shower nozzle vertical slot 137 is semicircle；The section of shower nozzle annular groove 136 is semicircle.The valve rod
Through hole 130 is opened up along the radial direction of valve rod 128.
The section of the shower nozzle vertical slot 137 is semicircle；The section of shower nozzle annular groove 136 is semicircle.The eddy flow
Hole 138 has 2 ~ 6 and is evenly distributed.
During work, urea liquid enters feed pathway 140 through nozzle inlet 109, flows through bushing 124 and valve rod spring
116 enter valve rod runner 131, and enter solution storage chamber 139 through stem through-hole 130, and urea liquid is constantly in solution storage chamber
Accumulation in 139, whole shower nozzle annular groove 136 and whirl hole 138 are full of through the shower nozzle vertical slot 137 on swirl flow nozzle 133.Work as spray
When mouth driving current is in low potential, in the presence of valve rod spring 116, the sealed spheroid 129 of the bottom of valve rod 128 is fixed on
Formation sealing is contacted with the inner sealing surface 141 on swirl flow nozzle 133, nozzle is closed；When nozzle driving current is in
During high potential, due to the effect of electromagnetic field, armature 127 with ovable valve stem 128 and the upward lifting of sealed spheroid 129, until with limit
The interior step face contact of position block 123, now, sealed spheroid 129 is separated with inner sealing surface 141, and nozzle is opened, due to ball sealer
Body 129 is that microgap couple coordinates with the inner surface of swirl flow nozzle mesopore 146, and with flow blocking effect, urea liquid is mainly by rotation
Discharge orifice 138 is flowed into swirl flow nozzle mesopore 146, and forms liquid cyclone, accelerates to be sprayed through spray orifice 145 in convergent passage 144
Carbon fiber liquid film, realizes atomization under the speed difference high of liquid and outside air.
Claims (10)
1. a kind of split type conical surface seal type urea measuring jet structure, it is characterized in that：Including valve rod（128）, sheath（132）With
Swirl flow nozzle（133）, in sheath（132）Bottom inside be fixed with swirl flow nozzle（133）, in swirl flow nozzle（133）Interior edge
Its axial direction and offer swirl flow nozzle mesopore（146）, in swirl flow nozzle（133）Lower end offer spray orifice（145）, spray orifice
（145）Upper end wall body and swirl flow nozzle mesopore（146）Bottom wall body between pass through inner sealing surface（141）It is connected,
Sheath（132）Inwall on be connected with annular protrusion, be slidingly sealed in the centre bore of annular protrusion and be connected with valve rod
（128）, valve rod（128）Bottom there is external seal face（148）, external seal face（148）With inner sealing surface（141）Coordinate,
Valve rod（128）Inside offer valve rod runner from top to bottom axially along（131）, valve rod runner（131）It is blind hole, and convex annular
Rise sheath（132）Inner circle and valve rod（128）It is cylindrical between cavity be separated into solution storage epicoele（139A）With solution
Storage cavity of resorption（139B）, in valve rod（128）On offer solution stored into epicoele（139A）With valve rod runner（131）The valve of connection
Through hole on bar（130A）, in valve rod（128）On offer solution stored into cavity of resorption（139B）With valve rod runner（131）The valve of connection
Bar lower through-hole（130B）, in swirl flow nozzle（133）Outer wall medium position offer shower nozzle annular groove along its circumference（136）,
In shower nozzle annular groove（136）The swirl flow nozzle of top（133）Outer wall circumferentially offer shower nozzle vertical slot（137）, shower nozzle is vertical
Groove（137）Bottom and shower nozzle annular groove（136）Connection, in shower nozzle annular groove（136）The swirl flow nozzle of position（133）On open
It is provided with whirl hole（138）.
2. split type conical surface seal type urea measuring jet structure as claimed in claim 1, it is characterized in that：The external seal face
（148）Small outer conical surface, inner sealing surface under for upper big（141）It is the small internal conical surface of big and lower mouth suitable for reading.
3. split type conical surface seal type urea measuring jet structure as claimed in claim 1, it is characterized in that：The shower nozzle is vertical
Groove（137）Section for semicircle；Shower nozzle annular groove（136）Section for semicircle.
4. split type conical surface seal type urea measuring jet structure as claimed in claim 1, it is characterized in that：Lead on the valve rod
Hole（130A）Along valve rod（128）Radial direction opened up；Valve rod lower through-hole（130B）Along valve rod（128）Radial direction opened
If.
5. split type conical surface seal type urea measuring jet structure as claimed in claim 1, it is characterized in that：The whirl hole
（138）With 2 ~ 6 and it is evenly distributed.
6. a kind of split type ball seal type urea measuring jet structure, it is characterized in that：Including valve rod（128）, sheath（132）With
Swirl flow nozzle（133）, in sheath（132）Bottom inside be fixed with swirl flow nozzle（133）, in swirl flow nozzle（133）Interior edge
Its axial direction and offer swirl flow nozzle mesopore（146）, in swirl flow nozzle（133）Lower end offer spray orifice（145）, spray orifice
（145）Upper end wall body and swirl flow nozzle mesopore（146）Bottom wall body between pass through inner sealing surface（141）It is connected,
Sheath（132）Valve rod is inside installed（128）, in valve rod（128）Cylindrical and sheath（132）Inner circle between formed solution storage
Chamber（139）, in valve rod（128）Bottom be fixed with sealed spheroid（129）, sealed spheroid（129）With inner sealing surface（141）Match somebody with somebody
Close, in valve rod（128）Inside offer valve rod runner from top to bottom axially along（131）, valve rod runner（131）Bottom quilt
Sealed spheroid（129）Blocked, in valve rod（128）On offer solution storage chamber（139）With valve rod runner（131）Connection
Stem through-hole（130）, in swirl flow nozzle（133）Outer wall medium position offer shower nozzle annular groove along its circumference（136）,
Shower nozzle annular groove（136）The swirl flow nozzle of top（133）Outer wall circumferentially offer shower nozzle vertical slot（137）, shower nozzle vertical slot
（137）Bottom and shower nozzle annular groove（136）Connection, in shower nozzle annular groove（136）The swirl flow nozzle of position（133）On open up
There is whirl hole（138）.
7. split type ball seal type urea measuring jet structure as claimed in claim 6, it is characterized in that：The shower nozzle is vertical
Groove（137）Section for semicircle；Shower nozzle annular groove（136）Section for semicircle.
8. split type ball seal type urea measuring jet structure as claimed in claim 6, it is characterized in that：The shower nozzle is vertical
Groove（137）Section for semicircle；Shower nozzle annular groove（136）Section for semicircle；The inner sealing surface（141）For suitable for reading big
And the small internal conical surface of lower mouth.
9. split type ball seal type urea measuring jet structure as claimed in claim 6, it is characterized in that：The shower nozzle is vertical
Groove（137）Section for semicircle；Shower nozzle annular groove（136）Section for semicircle；The stem through-hole（130）Along valve rod
（128）Radial direction opened up.
10. split type ball seal type urea measuring jet structure as claimed in claim 6, it is characterized in that：The shower nozzle is erected
To groove（137）Section for semicircle；Shower nozzle annular groove（136）Section for semicircle；The whirl hole（138）With 2 ~ 6
It is individual and be evenly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057193.5U CN206290310U (en) | 2016-09-14 | 2016-09-14 | Split type urea measuring jet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057193.5U CN206290310U (en) | 2016-09-14 | 2016-09-14 | Split type urea measuring jet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206290310U true CN206290310U (en) | 2017-06-30 |
Family
ID=59095192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057193.5U Active CN206290310U (en) | 2016-09-14 | 2016-09-14 | Split type urea measuring jet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206290310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246302A (en) * | 2016-09-14 | 2016-12-21 | 无锡威孚高科技集团股份有限公司 | Split type nreameter flow nozzle structure |
| CN108240253A (en) * | 2017-12-21 | 2018-07-03 | 浙江巴腾动力系统有限公司 | A kind of urea nozzle |
-
2016
- 2016-09-14 CN CN201621057193.5U patent/CN206290310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246302A (en) * | 2016-09-14 | 2016-12-21 | 无锡威孚高科技集团股份有限公司 | Split type nreameter flow nozzle structure |
| CN108240253A (en) * | 2017-12-21 | 2018-07-03 | 浙江巴腾动力系统有限公司 | A kind of urea nozzle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100907376B1 (en) | Swirl Spray Nozzle System for Injector | |
| CN206290310U (en) | Split type urea measuring jet structure | |
| JP2012097628A (en) | Fuel injection valve | |
| WO2022205862A1 (en) | Low-hydraulic-pressure swirl injector | |
| WO2022247098A1 (en) | Two-stage rotational flow urea ejector | |
| CN106246302A (en) | Split type nreameter flow nozzle structure | |
| WO2010039683A3 (en) | Urea injector nozzle | |
| WO2018049850A1 (en) | Nozzle assembly | |
| JP2004169572A (en) | Fuel injection valve | |
| CN201731805U (en) | Spiral guide blade | |
| CN104612875A (en) | Novel high flow injector nozzle matching parts of common rail injector | |
| AU2009332623A1 (en) | Nozzle trumpet | |
| JP2012077666A (en) | Fuel injection valve | |
| CN206035606U (en) | Integral urea measurement nozzle structure | |
| CN202725380U (en) | Spray nozzle | |
| CN204307745U (en) | A kind of atomizer | |
| CN206860338U (en) | A kind of locomotive diesel machine nozzle | |
| CN111535908A (en) | Urea solution atomizer and urea solution injection apparatus | |
| CN213807804U (en) | Urea solution atomizer | |
| CN109736990B (en) | A kind of tornado nozzle | |
| CN206329370U (en) | A kind of urea injector of axially injection | |
| CN106194354A (en) | Monoblock type nreameter flow nozzle structure | |
| CN208407451U (en) | A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration | |
| CN106593586A (en) | Urea injection device for engine SCR system | |
| CN206240668U (en) | Cross bore urea nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |