CN107701271A - A kind of metering injector of the spliced cooling jacket of band - Google Patents
A kind of metering injector of the spliced cooling jacket of band Download PDFInfo
- Publication number
- CN107701271A CN107701271A CN201711045045.0A CN201711045045A CN107701271A CN 107701271 A CN107701271 A CN 107701271A CN 201711045045 A CN201711045045 A CN 201711045045A CN 107701271 A CN107701271 A CN 107701271A
- Authority
- CN
- China
- Prior art keywords
- cooling jacket
- injection valve
- liquid
- cooling
- metered injection
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of metering injector of the spliced cooling jacket of band, it includes metered injection valve, liquid-storing cavity body and cooling jacket, the metered injection valve is arranged in the cooling jacket, the liquid-storing cavity body is integrated with cooling jacket sealing splicing, the cooling cavities of sealing is formed between the metered injection valve and the cooling jacket, recirculated cooling water is passed through in the cooling cavities, the inlet of the metered injection valve connects with the liquid-storing cavity body phase, water inlet pipe and outlet pipe are provided with the cooling jacket, the feed tube for inputting urea liquid is provided with the liquid-storing cavity body.Above-mentioned metering injector has additional cooling jacket outside metered injection valve so that the surrounding of metered injection valve has cooling water to flow through, so as to avoid the deviation of the working characteristics for the metered injection valve that temperature boundary condition is brought or even fail.Not only structure swashs simple, it is easy to accomplish；And ensure that injector being capable of long-term stable operation.
Description
Technical field
It is spliced cold more particularly, to a kind of band for diesel engine vent gas processing the present invention relates to a kind of metering injector
But the metering injector of water jacket.
Background technology
Refer to install for selective catalytic conversion system of diesel engine SCR (Selective Catalyst Reduction)
In diesel engine automobile air exhausting system, the NOx in diesel emission is catalysed and reduced into N2 and O2 catalytic reduction device, selection urine
The plain aqueous solution is as reducing agent.Aqueous solution of urea is ejected into the blast pipe of catalyst upstream, in EGT and the work of air-flow
CO2 and ammonia are produced as with lower hydrolysis, NOx is reduced into free of contamination nitrogen and water by ammonia as reducing agent.
At present, existing urea metering injector in the course of the work, because the EGT of discharge is higher, causes injector
Assembly can not work off field in stationary temperature, easily occur because temperature change cause the variation of the spray characteristic of urea liquid with
And rotten caused injection failure.
The content of the invention
It is an object of the invention to provide a kind of metering injector of the spliced cooling jacket of band, to solve in the prior art
Urea metering injector is present can not be stationary temperature works off field the problem of.
To use following technical scheme up to this purpose, the present invention：
A kind of metering injector of the spliced cooling jacket of band, it includes metered injection valve, liquid-storing cavity body and cooling jacket,
Wherein, the metered injection valve is arranged in the cooling jacket, and the liquid-storing cavity body is spliced into cooling jacket sealing
One, the cooling cavities of sealing is formed between the metered injection valve and the cooling jacket, is passed through and follows in the cooling cavities
Ring cooling water, the inlet of the metered injection valve are connected with the liquid-storing cavity body phase, are provided with the cooling jacket into water
Pipe and outlet pipe, the feed tube for inputting urea liquid is provided with the liquid-storing cavity body.
Especially, the flange for being positioned to injector assembly is provided with the cooling jacket.
Especially, the water inlet pipe and outlet pipe are mounted on the side of the cooling jacket.
Especially, the feed tube is installed on the top of the liquid-storing cavity body, has while urea liquid is inputted auxiliary
Help the effect of cooling metered injection valve.
Especially, the plug receptacle for being easy to connect exterior part is provided with outside the metered injection valve.
Especially, the flange is using any of the anchor ear flange with taper or multi hole surface flange.
Beneficial effects of the present invention are that the metering injector of the spliced cooling jacket of the band is being counted compared with prior art
Cooling jacket is had additional outside amount injection valve so that the surrounding of metered injection valve has cooling water to flow through, and injector precision is transported
Dynamic position is wrapped in cooling water, avoids the formed uneven temperature field of unilateral cooling and not sufficient enough the feelings of cooling
Condition, so as to avoid the deviation of the working characteristics for the metered injection valve that temperature boundary condition is brought or even fail.Not only structure swashs
Simply, it is easy to accomplish；And ensure that injector being capable of long-term stable operation.
Brief description of the drawings
Fig. 1 is that the stereochemical structure of the metering injector for the spliced cooling jacket of band that the specific embodiment of the invention provides is shown
It is intended to；
Fig. 2 is the knot of the metering injector cooling water cavity for the spliced cooling jacket of band that the specific embodiment of the invention provides
Structure schematic diagram.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1 and Fig. 2, in the present embodiment, a kind of metering injector of the spliced cooling jacket of band includes meter
Amount injection valve 1, liquid-storing cavity body 2 and cooling jacket 3, the metered injection valve 1 are arranged in the cooling jacket 3, the storage liquid
Cavity 2 is integrated with the cooling jacket 3 sealing splicing, and sealing is formed between the metered injection valve 1 and the cooling jacket 3
Cooling cavities 4, be passed through recirculated cooling water 5 in the cooling cavities 4 so that the surrounding of metered injection valve 1 has circulating cooling
Water 5 is flowed through, and injector precise motion position is wrapped in recirculated cooling water 5, the inlet of the metered injection valve 1 and institute
Liquid-storing cavity body 2 is stated to be connected.
Water inlet pipe 6 and outlet pipe 7, convenient installation are provided with the side of the cooling jacket 3.The liquid-storing cavity body 2
The feed tube 8 for inputting urea liquid is provided with top, is sprayed using having supplement heat rejecter metering by the way of the feed liquor of top
Valve 1 is penetrated to act on.
The flange 9 for being positioned to injector assembly is provided with the cooling jacket 3, flange 9 is spliced in injector
On assembly, the inadaptability to various mounting conditions caused by integration is avoided, from that can use as needed such as band cone
The various locating flanges such as the anchor ear flange of degree, multi hole surface flange.
The plug receptacle 10 for being easy to connect exterior part is provided with outside the metered injection valve 1.
During work, urea liquid flows through liquid-storing cavity body 2 from feed tube 8 and enters the upper end inlet of metered injection valve 1, by
Injector sprays atomization according to certain demand emitted dose with certain spray cone angle, forms good spray particle diameter and injection is equal
Even property；Recirculated cooling water 5 is entered to flow through by water inlet pipe 6 to flow out from outlet pipe 7 after cooling jacket 3, takes away due to injector assembly
The heat come is conducted with containing exit gases so that emitted dose can work off field in stationary temperature, keep good spray characteristics
And measuring accuracy.
Above example is to elaborate the general principle and characteristic of the present invention, and the present invention is not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various change and change, and these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (6)
1. a kind of metering injector of the spliced cooling jacket of band, it is characterised in that including metered injection valve, liquid-storing cavity body and cold
But water jacket, wherein, the metered injection valve is arranged in the cooling jacket, and the liquid-storing cavity body seals with the cooling jacket
Splicing is integrated, and forms the cooling cavities of sealing between the metered injection valve and the cooling jacket, in the cooling cavities
Recirculated cooling water is passed through, the inlet of the metered injection valve is connected with the liquid-storing cavity body phase, set on the cooling jacket
There are water inlet pipe and outlet pipe, the feed tube for inputting urea liquid is provided with the liquid-storing cavity body.
2. the metering injector of the spliced cooling jacket of band according to claim 1, it is characterised in that the cooling jacket
On be provided with flange for being positioned to injector assembly.
3. the metering injector of the spliced cooling jacket of band according to claim 1, it is characterised in that the water inlet pipe and
Outlet pipe is mounted on the side of the cooling jacket.
4. the metering injector of the spliced cooling jacket of band according to claim 1, it is characterised in that the feed tube peace
Top loaded on the liquid-storing cavity body.
5. the metering injector of the spliced cooling jacket of band according to claim 1, it is characterised in that the metered injection
The plug receptacle for being easy to connect exterior part is provided with outside valve.
6. the metering injector of the spliced cooling jacket of band according to claim 2, it is characterised in that the flange uses
Anchor ear flange or multi hole surface flange with taper it is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045045.0A CN107701271A (en) | 2017-10-31 | 2017-10-31 | A kind of metering injector of the spliced cooling jacket of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045045.0A CN107701271A (en) | 2017-10-31 | 2017-10-31 | A kind of metering injector of the spliced cooling jacket of band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107701271A true CN107701271A (en) | 2018-02-16 |
Family
ID=61177335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045045.0A Pending CN107701271A (en) | 2017-10-31 | 2017-10-31 | A kind of metering injector of the spliced cooling jacket of band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701271A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608086A (en) * | 2018-06-15 | 2019-12-24 | 通用汽车环球科技运作有限责任公司 | Control system and method for engine and coolant system |
| CN114060126A (en) * | 2021-11-08 | 2022-02-18 | 凯龙高科技股份有限公司 | Urea metering and spraying device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737133A (en) * | 2010-01-22 | 2010-06-16 | 中国汽车技术研究中心 | Device and method for spraying aqueous solution of urea having functions of cooling and anti-clogging |
| CN101988412A (en) * | 2010-11-12 | 2011-03-23 | 无锡市凯龙汽车设备制造有限公司 | SCR (selective catalyst reduction) injector head of diesel engine |
| CN204402628U (en) * | 2014-10-22 | 2015-06-17 | 张家口百通环保科技有限公司 | A kind of circulating water cooling type urea injection device for SCR exhaust gas aftertreatment system |
| CN206129370U (en) * | 2016-09-14 | 2017-04-26 | 无锡威孚高科技集团股份有限公司 | Nozzle coolant jacket structure |
| CN207634150U (en) * | 2017-10-31 | 2018-07-20 | 凯龙高科技股份有限公司 | A kind of metering injector of the spliced cooling jacket of band |
-
2017
- 2017-10-31 CN CN201711045045.0A patent/CN107701271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737133A (en) * | 2010-01-22 | 2010-06-16 | 中国汽车技术研究中心 | Device and method for spraying aqueous solution of urea having functions of cooling and anti-clogging |
| CN101988412A (en) * | 2010-11-12 | 2011-03-23 | 无锡市凯龙汽车设备制造有限公司 | SCR (selective catalyst reduction) injector head of diesel engine |
| CN204402628U (en) * | 2014-10-22 | 2015-06-17 | 张家口百通环保科技有限公司 | A kind of circulating water cooling type urea injection device for SCR exhaust gas aftertreatment system |
| CN206129370U (en) * | 2016-09-14 | 2017-04-26 | 无锡威孚高科技集团股份有限公司 | Nozzle coolant jacket structure |
| CN207634150U (en) * | 2017-10-31 | 2018-07-20 | 凯龙高科技股份有限公司 | A kind of metering injector of the spliced cooling jacket of band |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608086A (en) * | 2018-06-15 | 2019-12-24 | 通用汽车环球科技运作有限责任公司 | Control system and method for engine and coolant system |
| CN110608086B (en) * | 2018-06-15 | 2021-08-31 | 通用汽车环球科技运作有限责任公司 | Control system and method for engine and coolant system |
| CN114060126A (en) * | 2021-11-08 | 2022-02-18 | 凯龙高科技股份有限公司 | Urea metering and spraying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |