CN104624425A - Air atomization spray gun for denitration - Google Patents
Air atomization spray gun for denitration Download PDFInfo
- Publication number
- CN104624425A CN104624425A CN201510064566.5A CN201510064566A CN104624425A CN 104624425 A CN104624425 A CN 104624425A CN 201510064566 A CN201510064566 A CN 201510064566A CN 104624425 A CN104624425 A CN 104624425A
- Authority
- CN
- China
- Prior art keywords
- spray gun
- air
- outer tube
- pipe
- interior pipe
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0458—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being perpendicular just upstream the mixing chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/102—Ammonia
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nozzles (AREA)
Abstract
The invention discloses an air atomization spray gun for denitration. The air atomization spray gun is composed of a nozzle (1), an inner pipe (2), an outer pipe (3), an inner pipe fixing device (4), a support (5), an O-shaped sealing ring (6), a bolt (7) and a mixing connector (8) and is characterized in that a cooling air pipe connector (13) is arranged at the tail end of the outer pipe (3), and cooling air which can enter from the cooling air pipe connector (13) can rush to the top end of the outer pipe (3) from the tail end of the outer pipe (3). The air atomization spray gun is simple in structure, cooling air is continuously led into the outer pipe (3) through the cooling air pipe connector (13), and the phenomenon that the temperature of the spray gun is too high, and consequently the spray gun is burnt down is prevented; ammonia water and air are fully synthesized through compressed air entering through an air inlet connector (9) and are atomized after being sprayed, and the mist is fully mixed into smoke to easily ensure the denitration effect, increase the utilization rate of the ammonia water, reduce the ammonia water utilization amount and reduce the ammonia residues at the tail portion.
Description
Technical field
The present invention relates to denitrating flue gas purification techniques field, particularly a kind of denitration air atomization spray gun
.
Background technology
Because the operating temperature of SNCR denitrification spray gun is higher, and flue gas flow rate is also fast, and carry a large amount of dust in flue gas secretly, the wearing and tearing for spray gun are also very severe; And the spray gun at burner hearth place exits burner hearth by propeller, the spray gun of cyclone inlet not only will continue logical compressed air and wear and tear to prevent spray gun, also should continue to pass into a cooling air in spray gun sleeve pipe, prevents that spray gun temperature is too high burns out spray gun; In addition spray gun also should with atomizing medium effect, atomizing functions can strengthen ammonia spirit particle and mix with inner flue gas of the stove, is fully mixed with to be beneficial to ensure denitration effect, improve that ammoniacal liquor utilization rate reduces ammonia volume, to reduce afterbody ammonia remaining.
Summary of the invention
For above problem, the object of the present invention is to provide a kind of denitration air atomization spray gun, that hybrid juction is provided with inlet suction port and water inlet pipe nipple, outer tube tail end is provided with cooling-air pipe joint, make gas and ammonia atomization fully manage outer atomization by water inlet pipe nipple and inlet suction port, reduce afterbody ammonia remaining.
The technical solution used in the present invention is: a kind of denitration air atomization spray gun, be made up of nozzle, interior pipe, outer tube, interior pipe fixing device, support, O RunddichtringO, bolt, hybrid juction, described interior pipe top is fixedly connected with nozzle, interior pipe tail end is fixedly connected with hybrid juction, and hybrid juction is provided with inlet suction port and water inlet pipe nipple; Interior pipe is arranged in outer tube body, it is made to be fixedly connected with position, outer tube top by interior pipe fixing device, it is made to be fixedly connected with outer tube tail end position by support and bolt, hybrid juction part on interior pipe exposes, support is provided with O RunddichtringO, is completed being tightly connected with outer tube by O RunddichtringO; It is characterized in that: described outer tube tail end is provided with cooling-air pipe joint, the cooling air that can enter from cooling-air pipe joint pours into outer tube top from outer tube tail end.
Described outer tube is outer is installed with flange connecting pipe by set bolt, and flange connecting pipe is provided with flange.
The present invention, structure is simple, enters compressed air and weares and teares to prevent spray gun, continue to pass into cooling air by cooling-air pipe joint in outer tube by inlet suction port, prevents that spray gun temperature is too high burns out spray gun; Make gas and ammonia atomization fully manage outer atomization by water inlet pipe nipple and inlet suction port, be fully mixed in flue gas and be conducive to ensureing that denitration effect, raising ammoniacal liquor utilization rate minimizing ammonia volume, minimizing afterbody ammonia are remaining.
Accompanying drawing explanation
Fig. 1 is a kind of status architecture schematic diagram of the present invention.
In figure: 1 be nozzle, 2 be interior pipe, 3 be outer tube, 4 be interior pipe fixing device, 5 for supporting, 6 be O RunddichtringO, 7 be bolt, 8 be hybrid juction, 9 be inlet suction port, 10 be water inlet pipe nipple, 11 for supporting, 12 be set bolt, 13 for cooling-air pipe joint, 14 is flange connecting pipe, and 15 is flange.
Detailed description of the invention
Known by Fig. 1, a kind of denitration air atomization spray gun, be made up of nozzle 1, interior pipe 2, outer tube 3, interior pipe fixing device 4, support 5, O RunddichtringO 6, bolt 7, hybrid juction 8; Described interior pipe 2 top is fixedly connected with nozzle 1, and interior pipe 2 tail end is fixedly connected with hybrid juction 8; Described hybrid juction 8 is provided with inlet suction port 9 and water inlet pipe nipple 10; Described interior pipe 2 is arranged in outer tube 3 body, it is made to be fixedly connected with position, outer tube 3 top by interior pipe fixing device 4, by supporting 5 and bolt 7 makes it be fixedly connected with outer tube 3 tail end position and hybrid juction 8 part on interior pipe 2 exposes, described support 5 is provided with O RunddichtringO 6, is completed being tightly connected with outer tube 3 by O RunddichtringO 6; It is characterized in that: described outer tube 3 tail end is provided with cooling-air pipe joint 13, and the cooling air that can enter from cooling-air pipe joint 13 pours into outer tube 3 top from outer tube 3 tail end; Enter compressed air by inlet suction port 9 to wear and tear to prevent spray gun, continue to pass into cooling air by cooling-air pipe joint 13 in outer tube 3, prevent nozzle 1 and interior pipe 2 from burning out because temperature is too high; Be arranged in the spray gun of cyclone inlet once load onto, only otherwise blowing out, logical cooling air in spray gun outer tube need be continued, to protect spray gun; By water inlet pipe nipple 10 and inlet suction port 9, gas and ammoniacal liquor synthesize fully and manage outer atomization, being fully mixed in flue gas and being conducive to ensureing denitration effect, raising ammoniacal liquor utilization rate minimizing ammonia volume, minimizing afterbody ammonia remnants; Outer tube 3 is outer is installed with flange connecting pipe 14 by set bolt 12, and flange connecting pipe 14 is provided with flange 15, facilitates spray gun to be arranged on boiler.
Claims (2)
1. a denitration air atomization spray gun, is made up of nozzle (1), interior pipe (2), outer tube (3), interior pipe fixing device (4), support (5), O RunddichtringO (6), bolt (7), hybrid juction (8), described interior pipe (2) top is fixedly connected with nozzle (1), interior pipe (2) tail end is fixedly connected with hybrid juction (8), hybrid juction (8) is provided with inlet suction port (9) and water inlet pipe nipple (10), interior pipe (2) is arranged in outer tube (3) body, it is made to be fixedly connected with outer tube (3) position, top by interior pipe fixing device (4), by supporting (5) and bolt (7) and make it be fixedly connected with outer tube (3) tail end position and hybrid juction (8) on interior pipe (2) partly exposing, support (5) and be provided with O RunddichtringO (6), completed by O RunddichtringO (6) and be tightly connected with outer tube (3), it is characterized in that: described outer tube (3) tail end is provided with cooling-air pipe joint (13), the cooling air that can enter from cooling-air pipe joint (13) pours into outer tube (3) top from outer tube (3) tail end.
2. a kind of denitration air atomization spray gun according to claim 1, is characterized in that: described outer tube (3) is installed with flange connecting pipe (14) by set bolt (12) outward, and flange connecting pipe (14) is provided with flange (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064566.5A CN104624425A (en) | 2015-02-09 | 2015-02-09 | Air atomization spray gun for denitration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510064566.5A CN104624425A (en) | 2015-02-09 | 2015-02-09 | Air atomization spray gun for denitration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104624425A true CN104624425A (en) | 2015-05-20 |
Family
ID=53203941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510064566.5A Pending CN104624425A (en) | 2015-02-09 | 2015-02-09 | Air atomization spray gun for denitration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104624425A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433131A (en) * | 2017-08-15 | 2017-12-05 | 北京京丰燃气发电有限责任公司 | A kind of gas turbine denitration ammonia-gas spraying device and gas turbine |
| CN107930167A (en) * | 2018-01-08 | 2018-04-20 | 福建龙净环保股份有限公司 | A kind of atomizing lance and desulfurizing waste water processing device |
| CN109045892A (en) * | 2018-10-18 | 2018-12-21 | 蔡赞区 | Thermostatic type liquid gasification jet gun system and its gasification and jet method |
| CN113713611A (en) * | 2021-09-18 | 2021-11-30 | 龙净科杰环保技术（上海）有限公司 | Gas turbine exhaust-heat boiler SCR denitration spray gun high temperature expansion arrangement structure |
-
2015
- 2015-02-09 CN CN201510064566.5A patent/CN104624425A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433131A (en) * | 2017-08-15 | 2017-12-05 | 北京京丰燃气发电有限责任公司 | A kind of gas turbine denitration ammonia-gas spraying device and gas turbine |
| CN107433131B (en) * | 2017-08-15 | 2024-03-19 | 北京京丰燃气发电有限责任公司 | Gas turbine denitration ammonia injection device and gas turbine |
| CN107930167A (en) * | 2018-01-08 | 2018-04-20 | 福建龙净环保股份有限公司 | A kind of atomizing lance and desulfurizing waste water processing device |
| CN109045892A (en) * | 2018-10-18 | 2018-12-21 | 蔡赞区 | Thermostatic type liquid gasification jet gun system and its gasification and jet method |
| CN109045892B (en) * | 2018-10-18 | 2020-11-10 | 蔡赞区 | Constant-temperature liquid gasification air injection spray gun system and gasification and air injection method thereof |
| CN113713611A (en) * | 2021-09-18 | 2021-11-30 | 龙净科杰环保技术（上海）有限公司 | Gas turbine exhaust-heat boiler SCR denitration spray gun high temperature expansion arrangement structure |
| CN113713611B (en) * | 2021-09-18 | 2023-11-28 | 龙净科杰环保技术（上海）有限公司 | High-temperature expansion arrangement structure of SCR denitration spray gun of gas turbine exhaust-heat boiler |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |