CN208407451U - A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration - Google Patents
A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration Download PDFInfo
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- CN208407451U CN208407451U CN201820566228.0U CN201820566228U CN208407451U CN 208407451 U CN208407451 U CN 208407451U CN 201820566228 U CN201820566228 U CN 201820566228U CN 208407451 U CN208407451 U CN 208407451U
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- nozzle
- denitration
- rear portion
- screw thread
- internal combustion
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Abstract
The utility model belongs to denitrating flue gas reactant spraying technique field; more particularly to a kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration; including input duct; coupling bar; convergence pipe; swirl nozzle and nozzle guard shell; it is characterized in that; input duct rear portion is connect with coupling bar front; convergence pipe is connect by screw thread with coupling bar rear portion; convergence pipe rear portion outer diameter is connected through a screw thread with nozzle guard shell, and swirl nozzle is connected through a screw thread with convergence pipe rear portion internal diameter, and is bushed in inside nozzle guard shell by screw thread；It is set in swirl nozzle there are two tangential swirl channel, top is equipped with spin chamber and jet expansion.The utility model structure is simple, does not need air auxiliary, and cost of use is low；Atomization is abundant, energy-saving and water-saving；It is durable；It can be suitable for the injection of urea when the denitration of low concentration gas exhaust gases of internal combustion engines well, its denitration effect is made to reach best.
Description
Technical field
The utility model belongs to denitrating flue gas reactant spraying technique field, and in particular to a kind of low concentration gas internal combustion engine
The dedicated finer atomization nozzle of tail gas denitration.
Background technique
In China, low concentration gas internal combustion engine generation technology application is very extensive, big small coal mines throughout the country.And it is national
It is still in blank, the main dirt of low concentration gas engine exhaust at present for the standard limit of smog release of low concentration gas internal combustion engine
Dye object is NOx, and in the case where any treatment measures are not taken in end, emission level is higher, is much higher than gas fired-boiler and combustion gas wheel
The stationary sources combustion apparatus such as machine is destroyed caused by causing durability equipment and all be cannot be neglected to the pollution of environment.
Currently, used urea nozzle mainly has high pressure single fluid nozzle and air in diesel engine for automobile denitrating system
Two kinds of pilot jet, for denitration system of power plant then usually using urea spray gun and ammonia-spraying grid, former structure is complicated, and use condition is severe
It carves, the latter's urea jet flow amount is excessive and needs additional gas piping, is not appropriate for being applied to low concentration gas internal combustion engine flue gas
Denitration.
Therefore, for low concentration gas internal combustion engine denitrating flue gas demand the characteristics of, provide a kind of low concentration gas internal combustion engine
The dedicated finer atomization nozzle of tail gas denitration.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiencies, provide a kind of dedicated essence of low concentration gas exhaust gases of internal combustion engines denitration
High-dispersion noz(zle).
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of low concentration gas exhaust gases of internal combustion engines is de-
The dedicated finer atomization nozzle of nitre, including input duct 1, coupling bar 2 restrain pipe 3, swirl nozzle 4 and nozzle guard shell 5, special
Sign is that 1 rear portion of input duct is connect with 2 front of coupling bar, and convergence pipe 3 is connect by screw thread with 2 rear portion of coupling bar, restrains pipe 3
Rear portion outer diameter is connected through a screw thread with nozzle guard shell 5, and swirl nozzle 4 is connected through a screw thread with convergence 3 rear portion internal diameter of pipe, and logical
Screw thread is crossed to be bushed in inside nozzle guard shell 5.
It is set in the swirl nozzle 4 there are two tangential swirl channel 4a, top is equipped with spin chamber 4b and jet expansion 4c.
When needing to spray urea, urea liquid is transported at coupling bar 2 by urea solution pump by input duct 1, liquid
Body is reached in convergence pipe 3 by coupling bar 2, enters back into swirl nozzle 4, and liquid passes through tangential swirl channel in swirl nozzle 4
When 4a, motion mode becomes screw type shearing motion and spins up in spin chamber 4b to form one from being parallel to pipe motion
A centrifugal vortex, then sprayed by jet expansion 4c, form subtle open-core type atomizing particle.
The utility model has the beneficial effects that structure is simple, air auxiliary is not needed, cost of use is low；Atomization is sufficiently, energy saving
It is water-saving；Selected material experiments verify that, it is durable；It can be suitable for urinating when the denitration of low concentration gas exhaust gases of internal combustion engines well
The injection of element, makes its denitration effect reach best.
The utility model is described further with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is a kind of dedicated finer atomization nozzle arrangements signal of low concentration gas exhaust gases of internal combustion engines denitration of the utility model
Figure；
Fig. 2 is the utility model swirl nozzle transverse sectional view；
Fig. 3 is the utility model swirl nozzle longitudinal sectional view.
In figure: 1- input duct, 2- coupling bar, 3- convergence pipe, 4- swirl nozzle, 5- nozzle guard shell, 4a- tangential swirl
Channel, the spin chamber 4b-, 4c- jet expansion.
Specific embodiment
Referring to attached FIG. 1 to FIG. 3, the utility model proposes a kind of dedicated fine mist of low concentration gas exhaust gases of internal combustion engines denitration
Change nozzle, including input duct 1, coupling bar 2 restrains pipe 3, swirl nozzle 4 and nozzle guard shell 5, characterized in that input duct
1 rear portion is connect with 2 front of coupling bar, and convergence pipe 3 is connect by screw thread with 2 rear portion of coupling bar, restrains 3 rear portion outer diameter of pipe and nozzle
Protective shell 5 is connected through a screw thread, and swirl nozzle 4 is connected through a screw thread with convergence 3 rear portion internal diameter of pipe, and is bushed in spray by screw thread
Inside mouth protective shell 5.
It is set in the swirl nozzle 4 there are two tangential swirl channel 4a, top is equipped with spin chamber 4b and jet expansion 4c.
When needing to spray urea, urea liquid is transported at coupling bar 2 by urea solution pump by input duct 1, liquid
Body is reached in convergence pipe 3 by coupling bar 2, enters back into swirl nozzle 4, and liquid passes through tangential swirl channel in swirl nozzle 4
When 4a, motion mode becomes screw type shearing motion and spins up in spin chamber 4b to form one from being parallel to pipe motion
A centrifugal vortex, then sprayed by jet expansion 4c, form subtle open-core type atomizing particle.
The utility model structure is simple, and cost of use is low, and atomization is abundant, energy-saving and water-saving.The nozzle can generate fine mist
Change effect, spray angle range 45-90o, atomizing particle size is 10-50 μm, and the amount of injection is 3.3L/h, energy to urea at a given pressure
It is suitable for the injection of urea when the denitration of low concentration gas exhaust gases of internal combustion engines well, its denitration effect is made to reach best.
Claims (2)
1. a kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration, including input duct (1), coupling bar (2),
Convergence pipe (3), swirl nozzle (4) and nozzle guard shell (5), characterized in that input duct (1) rear portion and coupling bar (2) front
Connection, convergence pipe (3) are connect by screw thread with coupling bar (2) rear portion, and convergence pipe (3) rear portion outer diameter and nozzle guard shell (5) are logical
Threaded connection is crossed, swirl nozzle (4) is connected through a screw thread with convergence pipe (3) rear portion internal diameter, and is bushed in nozzle by screw thread and is protected
Protective case (5) is internal.
2. the dedicated finer atomization nozzle of a kind of low concentration gas exhaust gases of internal combustion engines denitration according to claim 1, feature
It is to be set in the swirl nozzle (4) there are two tangential swirl channel (4a), top is equipped with spin chamber (4b) and jet expansion
(4c)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566228.0U CN208407451U (en) | 2018-04-20 | 2018-04-20 | A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566228.0U CN208407451U (en) | 2018-04-20 | 2018-04-20 | A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208407451U true CN208407451U (en) | 2019-01-22 |
Family
ID=65118754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820566228.0U Active CN208407451U (en) | 2018-04-20 | 2018-04-20 | A kind of dedicated finer atomization nozzle of low concentration gas exhaust gases of internal combustion engines denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208407451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430535A (en) * | 2022-06-30 | 2022-12-06 | 国家能源集团谏壁发电厂 | Atomizing spray gun and SO 3 Removal equipment |
-
2018
- 2018-04-20 CN CN201820566228.0U patent/CN208407451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430535A (en) * | 2022-06-30 | 2022-12-06 | 国家能源集团谏壁发电厂 | Atomizing spray gun and SO 3 Removal equipment |
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