CN205559028U - Urea pump gas helps prevents stifled nozzle - Google Patents
Urea pump gas helps prevents stifled nozzle Download PDFInfo
- Publication number
- CN205559028U CN205559028U CN201620196588.7U CN201620196588U CN205559028U CN 205559028 U CN205559028 U CN 205559028U CN 201620196588 U CN201620196588 U CN 201620196588U CN 205559028 U CN205559028 U CN 205559028U
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- China
- Prior art keywords
- blast tube
- nozzle
- air
- urea pump
- pump gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Exhaust Gas After Treatment (AREA)
Abstract
Urea pump gas helps prevents stifled nozzle, its characteristics are: including the reductant connector, the reductant connector is connected with the blast tube, blast tube top -down passes mounting flange, and this blast tube bottom is connected through connector and air cap and is extended to bottom the air cap, still is equipped with outside air inlet in the blast tube lower part, be equipped with sealed lid on the air inlet, it joins in marriage air jacket still to be equipped with on the air cap, form the air current clearance between blast tube and the air cap, the export of air current clearance and blast tube forms the orifice. Compared with the prior art, the utility model has the advantages of simple structure, adopt the straight tube design can not form loss of pressure and resistance, the nozzle can be installed perpendicularly in the blast pipe, the spraying is unanimous with the engine exhaust flow direction, adopt the slope of thin wall corrosion resistant plate to weld on the straight tube, the reductant can pass through straight tube and thin -wall plate fast, do not form and remain, reduce the crystallized blocking risk after the reductant is remained, the reductant spraying unanimously reduces the inside crystallization risk of blast pipe with engine exhaust, this novel nozzle is the mechanical type nozzle, which is easy to lay the whole automobile, do not need but system of volume separately cooling, the easy to maintain maintenance, the cost advantage is obvious.
Description
Technical field
This utility model relates to urea pump technical field, more specifically relates to a kind of urea pump gas and helps Anti-clogging spray nozzle.
Background technology
In prior art, the method processed for I. C. engine exhaust there is a disadvantage that, i.e. clean to PM and nitrogen oxides
Change processes and cannot realize simultaneously, collides with each other therebetween.Such as, waste gas recirculation (EGR, Exhaust Gas is used
Recycle) technology purified treatment I. C. engine exhaust, it is possible to achieve the content of nox in exhaust is greatly lowered, but aerofluxus
The content of middle PM raises on the contrary, and fuel cost improves；Use high compression injection techniques purified treatment I. C. engine exhaust, be conducive to fall
The content of PM in low aerofluxus, but often make the content of nox in exhaust raise.In order to protect environment, countries in the world are in succession
Having put into effect the relevant laws and regulations controlling motor vehicle exhaust emission, the strictest Abgasgesetz makes simple emission controls by improving combustion technology very
Difficulty meets laws and regulations requirement, it is necessary to the outer post-processing technology of dependence machine is assisted.
Urea pump depending nozzle by reducing agent spray from, tail gas reductant is become 90 degree by common gas-assisted nozzle with motor exhaust
Injection, so nozzle is processed into elbow form, reprocesses micropore at bend part.Owing to this elbow-for-nozzle form can increase additionally
Resistance, makes reducing agent quickly to spray from nozzle, additionally the long resistance that more aggravates of microcell length, and then in the effect of exhaust high temperature
Lower reducing agent easily forms crystallization in nozzle interior and spray orifice position, and crystallization progressive, by high-temperature heating, is formed water insoluble
Condensation substance make its nozzle completely plugged.This practicality shortcoming based on common gas-assisted nozzle is optimized improvement, thus avoids curved
The resistance that head and long micropore are formed, makes reducing agent quickly spray from nozzle, thus is prevented effectively from reducing agent residual, and then avoids nozzle
Blocking.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, proposes a kind of urea pump gas and helps anti-blocking
Nozzle.
The technical problems to be solved in the utility model is achieved through the following technical solutions, and urea pump gas helps anti-blocking spray
Mouth, is characterized in: include reducing agent union joint, and described reducing agent union joint connects blast tube, and described blast tube is from top to bottom
Through mounting flange, it is connected with air cap and extends to bottom air cap by union joint, under blast tube bottom this blast tube
Portion is additionally provided with extraneous air air inlet, and described air inlet is provided with sealing lid, and described air cap is additionally provided with distribution set, described spray
Form airflow clearance, described airflow clearance and blast tube between mouth pipe and air cap goes out interruption-forming spray orifice.
Preferably, described heating unit includes passing through bottom water inlet pipe and outlet pipe, described water inlet pipe and described outlet pipe
Heat exchanger UNICOM.
Preferably, described urea pump gas helps Anti-clogging spray nozzle to be thin-wall stainless steel material.
Preferably, described mounting flange, distribution set, formation gas channel between airflow clearance and spray orifice.
Preferably, described urea pump gas helps Anti-clogging spray nozzle to be installed vertically on exhaustor.
Compared with prior art, this utility model simple in construction, use straight tube design will not form the pressure loss and resistance,
Nozzle can be installed vertically on exhaustor, sprays and flows to consistent with engine exhaust, uses thin-wall stainless steel plate oblique weld in directly
Guan Shang, reducing agent can be formed without residual quickly through straight tube and thin-walled part, reduce the Crystallization Plugging risk after reducing agent residual,
Reducing agent spraying is consistent with engine exhaust reduces exhaustor internal crystallization risk, and this new type nozzle is Mechanical nozzle, it is easy to
Arrangement, it is not necessary to extra cooling system, it is easy to maintaining, cost advantage is obvious.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Referring to the drawings, concrete technical scheme of the present utility model is further described, in order to those skilled in the art
Member is further understood that this utility model, and does not constitute the restriction of its power.
Embodiment 1, helps Anti-clogging spray nozzle with reference to Fig. 1, urea pump gas, is characterized in: include reducing agent union joint 1, described also
Former dose of union joint 1 connects blast tube 2, and described blast tube 2 is from top to bottom through mounting flange 3, by even bottom this blast tube 2
Joint 4 is connected with air cap 5 and extends to bottom air cap, is additionally provided with extraneous air air inlet 7 in blast tube 2 bottom, described
Air inlet is provided with sealing lid, and described air cap 5 is additionally provided with distribution set 8, forms gas between described blast tube 2 and air cap 5
Ebb interval, described airflow clearance and blast tube 2 go out interruption-forming spray orifice 6.
Embodiment 2, the urea pump gas described in embodiment 1 helps in Anti-clogging spray nozzle: described urea pump gas helps Anti-clogging spray nozzle to be thin
Wall stainless steel.
Embodiment 3, the urea pump gas described in embodiment 1 or 2 helps in Anti-clogging spray nozzle: described mounting flange 3, distribution set 8, gas
Gas channel is formed between ebb interval and spray orifice 6.
Embodiment 4, the urea pump gas described in embodiment 1 or 2 or 3 helps in Anti-clogging spray nozzle: described urea pump gas helps anti-blocking spray
Mouth is installed vertically on exhaustor.
Embodiment 5, the metering units in this example tail gas processing system of diesel engine, by after reducing agent accurate measurement, reduces
Agent mixes with built in air control unit, forms gas liquid mixture.Extraneous air air inlet is standby to make.
By pipeline after reducing agent gas-liquid mixed, the propelling movement of gas reducing agent is pushed to nozzle.Gas-liquid is through nozzle
After aperture on the thin-wall stainless steel plate of front end, it is smaller diameter granule for atomization further.Thus it is injected into engine exhaust
In pipe, under the effect of exhaust high temperature, reducing agent pyrolysis is ammonia and water.Ammonia again under the effect of catalyst by engines tail
Nitrogen oxides in gas is reduced to nitrogen and water, thus purifying engine tail gas.
Owing to nozzle can make reducing agent quickly spray from nozzle, and with engines tail entraining air stream always, and reducing agent atomization
Grain is minimum, so improving reliability and the high efficiency of diesel motor exhaust processing means further.
Claims (4)
1. urea pump gas helps Anti-clogging spray nozzle, it is characterised in that: including reducing agent union joint, described reducing agent union joint connects spray
Mouth pipe, described blast tube, from top to bottom through mounting flange, is connected with air cap by union joint and is extended bottom this blast tube
Bottom air cap, being additionally provided with extraneous air air inlet in blast tube bottom, described air inlet is provided with sealing lid, described air
It is additionally provided with distribution set on cap, between described blast tube and air cap, forms going out of airflow clearance, described airflow clearance and blast tube
Interruption-forming spray orifice.
Urea pump gas the most according to claim 1 helps Anti-clogging spray nozzle, it is characterised in that: described urea pump gas helps Anti-clogging spray nozzle
For thin-wall stainless steel material.
Urea pump gas the most according to claim 1 helps Anti-clogging spray nozzle, it is characterised in that: described mounting flange, distribution set, gas
Gas channel is formed between ebb interval and spray orifice.
Urea pump gas the most according to claim 1 helps Anti-clogging spray nozzle, it is characterised in that: described urea pump gas helps Anti-clogging spray nozzle
It is installed vertically on exhaustor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196588.7U CN205559028U (en) | 2016-03-15 | 2016-03-15 | Urea pump gas helps prevents stifled nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620196588.7U CN205559028U (en) | 2016-03-15 | 2016-03-15 | Urea pump gas helps prevents stifled nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559028U true CN205559028U (en) | 2016-09-07 |
Family
ID=56817721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620196588.7U Active CN205559028U (en) | 2016-03-15 | 2016-03-15 | Urea pump gas helps prevents stifled nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205559028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631151A (en) * | 2020-05-29 | 2020-09-08 | 贵州绿尚鲜农业股份有限公司 | Microbial fermentation bed |
-
2016
- 2016-03-15 CN CN201620196588.7U patent/CN205559028U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111631151A (en) * | 2020-05-29 | 2020-09-08 | 贵州绿尚鲜农业股份有限公司 | Microbial fermentation bed |
| CN111631151B (en) * | 2020-05-29 | 2022-03-25 | 贵州绿尚鲜农业股份有限公司 | Microbial fermentation bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180518 Address after: 262200 Li Shan Road, Weifang City, Shandong Province, No. 116 Patentee after: Shandong aytek environmental Polytron Technologies Inc Address before: 215300 room 1302, science and Technology Plaza, Qianjin East Road, Kunshan Development Zone, Suzhou, Jiangsu. Patentee before: Card emission control system (Jiangsu) Co., Ltd. |