CN204396225U - A kind of Double-fluid spray gun for denitration - Google Patents
A kind of Double-fluid spray gun for denitration Download PDFInfo
- Publication number
- CN204396225U CN204396225U CN201420843387.2U CN201420843387U CN204396225U CN 204396225 U CN204396225 U CN 204396225U CN 201420843387 U CN201420843387 U CN 201420843387U CN 204396225 U CN204396225 U CN 204396225U
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- CN
- China
- Prior art keywords
- rifle body
- rifle
- mixing chamber
- gun barrel
- protective sleeve
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of Double-fluid spray gun for denitration, comprises rifle body, protective sleeve, gun barrel, rifle head; Protective sleeve is enclosed within outside gun barrel, and fixed by holding screw and rifle body, gun barrel one end is welded with rifle body, and the other end connects with rifle head.Rifle body axially has compressed air inner joint, the eddy flow mixing chamber of screw-type, has axial aperture to communicate between compressed air inner joint and eddy flow mixing chamber; Rifle body upper end is longitudinally welded with reducing agent interface, and having between reducing agent interface and rifle body with mixing chamber is that tangential aperture communicates; Protective sleeve is welded with protection gas interface; The first end of rifle is processed with internal thread, and the external screw thread of gun barrel is connected, and the other end is processed with the axial aperture of difformity and dimensional requirement, controls spray shapes.During work, because rifle body is inner with eddy flow mixing chamber, biphase gas and liquid flow fully mixes and energy transferring in mixing chamber, and the pressure energy of gas phase is fully used, and then improves liquid phase kinetic energy.
Description
Technical field
The utility model relates to coal-fired industrial furnace gas denitrifying technology, is specifically related to a kind of Double-fluid spray gun for denitration, its inner band eddy flow mixing chamber.
Background technology
Nitrogen oxide (NOx) is all contained in coal-fired industrial furnace flue gas, NOx is a kind of main atmosphere pollution, NOx and hydrocarbon can cause photochemical pollution under high light effect, and the NOx be discharged in air is the main cause forming acid rain, serious harm ecological environment.SNCR denitrating flue gas (SNCR), because its technique is simple, reduced investment, has become one of important denitration method for flue gas.Its principle is under compressed-air actuated effect, by ammoniacal liquor (reducing agent) by being sprayed onto in stove high-temperature flue gas after the atomization of biphase gas and liquid flow spray gun, ammonia in ammoniacal liquor and the reaction of nitrogen oxides in flue gas, generate nitrogen and water, nitrogen oxides in effluent removed.
Gas-liquid after atomization must have enough energy, just can be sprayed onto precalculated position, ensures denitration efficiency.The current domestic coal-fired industry furnace denitrating flue gas spray gun multiselect conventional gas-liquid two phase flow spray gun of other industry for cleaning or lower the temperature, gas-liquid two-phase energy exchange is insufficient, atomizing effect is bad, the kinetic energy that reducing agent has is not high, can not effectively by injection of reducing agent to precalculated position, denitration efficiency is not high, generally only has about 50%, in the urgent need to a kind of special denitration spray gun adapting to coal-fired industry furnace flue gas operating mode.
Utility model content
Technical problem to be solved in the utility model is, for the deficiencies in the prior art, a kind of two-fluid spray gun is provided, its rifle body is inner with eddy flow mixing chamber, biphase gas and liquid flow fully mixes and energy transferring in mixing chamber, the pressure energy of gas phase is fully used, and then improves liquid phase kinetic energy.
The technical scheme that the utility model adopts for its technical problem of solution, comprises rifle body, protective sleeve, gun barrel, rifle head; Protective sleeve is enclosed within outside gun barrel, and fixed by holding screw and rifle body, gun barrel one end is welded with rifle body, and the other end connects with rifle head.
Above-mentioned rifle body axially has compressed air inner joint, the eddy flow mixing chamber of screw-type, has axial aperture to communicate between compressed air inner joint and eddy flow mixing chamber; Rifle body upper end is longitudinally welded with reducing agent interface, and having between reducing agent interface and rifle body with mixing chamber is that tangential aperture communicates.
Above-mentioned protective sleeve is welded with protection gas interface, protection gas interface is processed with internal thread.The spray gun that the protection gas constantly entered by protective sleeve is worked under effectively can cooling and being in the condition of high temperature.
The above-mentioned gun barrel other end is processed with external screw thread, and the internal thread of rifle head is connected; The first end of above-mentioned rifle is processed with internal thread, and the external screw thread of gun barrel is connected, and the other end is processed with the axial aperture of difformity and dimensional requirement, controls spray shapes.
During work, compressed air, reducing agent and protection gas access compressed air interface, the reducing agent interface of spray gun respectively and protect gas interface.The reducing agent with certain pressure tangentially enters in the eddy flow mixing chamber of rifle body by reducing agent interface, produce High Rotation Speed, run into the compressed air entered from rifle body compressed air interface, gas, liquid two-phase be fully mixing, energy exchange and atomization in eddy flow mixing chamber, while there is the liquid phase acquisition gaseous pressure energy of certain pressure energy, also have the kinetic energy of High Rotation Speed, liquid phase energy strengthens; After gun barrel, the ejection of rifle head, the pressure energy that liquid phase has and kinetic energy are all converted into kinetic energy, are atomized further and are sprayed onto precalculated position to provide condition for liquid phase.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is lance body structure schematic diagram;
Fig. 3 is the sectional view of rifle body;
Fig. 4 is protective sleeve structural representation.
In figure, 1 is rifle body, and 1-1 is compressed air inner joint, and 1-2 is reducing agent interface, and 1-3 is eddy flow mixing chamber, and 2 is protective sleeve, and 2-1 is reducing agent interface, and 3 is gun barrel, and 4 is rifle head.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
This specific embodiment provides a kind of Double-fluid spray gun for denitration, comprises rifle body 1, protective sleeve 2, gun barrel 3, rifle head 4; Protective sleeve 2 is enclosed within outside gun barrel 3, and fixed by holding screw and rifle body 1, gun barrel 3 one end is welded with rifle body 1, and the other end connects with rifle head 4.
Above-mentioned rifle body 1 axially has compressed air inner joint 1-1, the eddy flow mixing chamber 1-3 of screw-type, and between compressed air inner joint 1-1 and eddy flow mixing chamber, 1-3 has axial aperture to communicate; Rifle body 1 upper end is longitudinally welded with reducing agent interface 1-2, and having between reducing agent interface 1-2 and rifle body 1 with mixing chamber is that tangential aperture communicates.
Above-mentioned protective sleeve 2 is welded with protection gas interface 2-1, protection gas interface is processed with internal thread.The spray gun that the protection gas constantly entered by protective sleeve 2 is worked under effectively can cooling and being in the condition of high temperature.
Above-mentioned gun barrel 3 other end is processed with external screw thread, and the internal thread of rifle head 4 is connected;
Above-mentioned rifle head 4 one end is processed with internal thread, and the external screw thread of gun barrel 3 is connected, and the other end is processed with the axial aperture of difformity and dimensional requirement, controls spray shapes.
During work, compressed air, reducing agent and protection gas access compressed air interface 1-1, reducing agent interface 1-2 and the protection gas interface 2-1 of spray gun respectively.The reducing agent with certain pressure tangentially enters in the eddy flow mixing chamber 1-3 of rifle body 1 by reducing agent interface 1-1, produce High Rotation Speed, run into the compressed air entered from rifle body 1 compressed air interface 1-1, gas, liquid two-phase 1-3 in eddy flow mixing chamber fully mixes, energy exchange and atomization, while there is the liquid phase acquisition gaseous pressure energy of certain pressure energy, also have the kinetic energy of High Rotation Speed, liquid phase energy strengthens; After gun barrel 3, rifle head 4 spray, the pressure energy that liquid phase has and kinetic energy are all converted into kinetic energy, are atomized further and are sprayed onto precalculated position to provide condition for liquid phase.
Claims (4)
1. a Double-fluid spray gun for denitration, comprise rifle body, gun barrel, rifle head, gun barrel one end is welded with rifle body, and the other end connects with rifle head thread, it is characterized in that: also comprise protective sleeve, is enclosed within outside gun barrel, is fixed by holding screw and rifle body.
2. a kind of Double-fluid spray gun for denitration according to claim 1, it is characterized in that: described rifle body is inner with eddy flow mixing chamber, the reducing agent with certain pressure tangentially enters in the eddy flow mixing chamber of rifle body by reducing agent interface, produce High Rotation Speed, biphase gas and liquid flow fully mixes and energy transferring in mixing chamber, the pressure energy of gas phase is fully used, and then improves liquid phase kinetic energy.
3. a kind of Double-fluid spray gun for denitration according to claim 1; it is characterized in that: described protective sleeve is welded with protection gas interface; protection gas interface is processed with internal thread, the spray gun that the protection gas constantly entered by protective sleeve is worked under effectively can cooling and being in the condition of high temperature.
4. a kind of Double-fluid spray gun for denitration according to claim 1, is characterized in that: the first end of described rifle is processed with internal thread, and the external screw thread of gun barrel is connected, and the other end is processed with the axial aperture of difformity and dimensional requirement, controls spray shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420843387.2U CN204396225U (en) | 2014-12-25 | 2014-12-25 | A kind of Double-fluid spray gun for denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420843387.2U CN204396225U (en) | 2014-12-25 | 2014-12-25 | A kind of Double-fluid spray gun for denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204396225U true CN204396225U (en) | 2015-06-17 |
Family
ID=53420125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420843387.2U Expired - Fee Related CN204396225U (en) | 2014-12-25 | 2014-12-25 | A kind of Double-fluid spray gun for denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204396225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1009325B (en) * | 2017-06-22 | 2018-07-06 | Παναγιωτης Θεοδωρου Τυροβουζης | Ergonomic liquid-spraying packaging |
-
2014
- 2014-12-25 CN CN201420843387.2U patent/CN204396225U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1009325B (en) * | 2017-06-22 | 2018-07-06 | Παναγιωτης Θεοδωρου Τυροβουζης | Ergonomic liquid-spraying packaging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20181225 |