CN107008136A - A kind of SNCR denitrification spray gun energy saver - Google Patents
A kind of SNCR denitrification spray gun energy saver Download PDFInfo
- Publication number
- CN107008136A CN107008136A CN201710372867.3A CN201710372867A CN107008136A CN 107008136 A CN107008136 A CN 107008136A CN 201710372867 A CN201710372867 A CN 201710372867A CN 107008136 A CN107008136 A CN 107008136A
- Authority
- CN
- China
- Prior art keywords
- spray gun
- heat
- cylinder
- insulating room
- energy saver
- 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.)
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Classifications
-
- 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
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- 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
- B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
- B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards
-
- 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
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a kind of denitration spray gun device, particularly a kind of SNCR denitrification spray gun energy saver belongs to gas denitrifying technology field.It includes cylinder (1), telescopic mechanism (2), drive link (3), spray gun (4), heat-proof device (5) and heat-insulating room (6), through hole is offered on boiler setting and furnace wall external thermal insulation, heat-insulating room (6) is installed on through hole, boiler internal is stretched into heat-insulating room (6) one end, and the other end is provided with fixed seat (13).Cylinder (1) is installed in fixed seat (13), cylinder (1) one end is connected with telescopic mechanism (2), cylinder (1) bottom is also connected with spray gun (4), heat-insulating room (6) by drive link (3) and is provided with heat-proof device (5).The device cancels cooling spray gun (4) and uses compressed air, while spray gun (4) service life is improved, further reaches energy-conservation purpose.
Description
Technical field
The present invention relates to a kind of denitration spray gun device, particularly a kind of SNCR denitrification spray gun energy saver belongs to flue gas and taken off
Nitre technical field.
Background technology
SNCR (Selective non-catalytic reduction) method denitrating flue gas generally uses spray gun by reducing agent
By being sprayed into after nozzle atomization inside boiler furnace, chemically reacted after being sufficiently mixed with NOx in high-temperature flue gas, to reach
Remove NOx purpose.Because spray gun perforate is installed on boiler high temperature region (about at 900 DEG C or so), when not working due to
Spray gun is not passed through reducing agent, and now spray gun can produce potential safety hazard because of heated impaired influence service life.In order to improve spray gun
Service life, in spray gun off working state, is generally passed through compressed air cooling spray gun, to ensure spray gun on the outside of spray gun perforate
Within the temperature range of material permission, but it can so waste a large amount of compressed airs.
The content of the invention
It is an object of the present invention to provide a kind of SNCR denitrification spray gun energy saver.The device cancels cooling spray gun pressure
Contracting air, while spray gun service life is improved, further reaches energy-conservation purpose.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
This kind of SNCR denitrification spray gun energy saver include cylinder, telescopic mechanism, drive link, spray gun, heat-proof device and every
Offered on hot cell, boiler setting and the furnace wall external thermal insulation and heat-insulating room is installed on through hole, the through hole, the heat-insulating room one
Boiler internal is stretched at end, and the other end is provided with fixed seat.Cylinder, described cylinder one end and scalable machine are installed in the fixed seat
Structure is connected, and the cylinder bottom is also connected with spray gun by drive link.The telescopic drive that the telescopic mechanism passes through drive rod
Cylinder, cylinder drives spray gun horizontal direction to stretch by drive link.Heat-proof device, the heat-insulated dress are installed on the heat-insulating room
Put the break-make for controlling heat-insulating room.
Foregoing heat-proof device includes the executing agency of thermal insulation board and driving thermal insulation board vertical shift, and thermal insulation board is by heat-insulating room
High-temperature region and low-temperature space are separated into, is high-temperature region close to the side of boiler, the side of Keep away from boiler is low-temperature space.When spray gun is non-
During working condition, spray gun is exited outside boiler furnace, and executing agency's driving thermal insulation board is moved down, and heat-insulating room is closed, nozzle is allowed
Be maintained at low-temperature space protection spray gun be notheated it is impaired.
In order to further improve the effect of heat insulation of heat-insulating room, the size of foregoing thermal insulation board is more than the section chi of heat-insulating room
It is very little.The heat-insulating room, thermal insulation board use heat-barrier material, are also connected with the through hole on boiler using heat-barrier material.
One end of foregoing spray gun is provided with atomization compressed air A interfaces and reducing agent B interface, and reducing agent B interface is ammoniacal liquor
Entrance or urea liquid entrance, the atomization compressed air A interfaces and reducing agent B interface respectively with respective pipeline communication, institute
The other end for stating spray gun is provided with nozzle.
Foregoing spray gun is further opened with the auxiliary perforate of several size identicals on the side wall of nozzle one end so that also
Former agent becomes multiple outlets by single jet expansion, improves reducing agent atomizing effect, adds the mass transfer rate with NOx, enter
And improve denitration efficiency while reducing energy consumption.
Containment vessel is also arranged with foregoing nozzle, the containment vessel material is ceramics.Pass through the setting of containment vessel, protection
Nozzle directly washes away reduction abrasion not by flue gas, and forms heat-insulated with outside, it is to avoid therefore spray gun temperature improves.
Foregoing energy saver is additionally provided with control system, the cylinder, telescopic mechanism and the equal signal connection of heat-proof device
In control system.Control system controls the current location of spray gun and the opening and closing of heat-proof device by cylinder, telescopic mechanism.
Compared with prior art, the present invention is advantageous in that：When spray gun does not work, by that heat-proof device and can stretch
The mutual cooperation of the equipment such as contracting mechanism, it is to avoid spray gun is contacted with high-temperature flue gas in boiler, so that it is empty to cancel cooling spray gun compression
Gas, while spray gun service life is improved, further reaches energy-conservation purpose.
Brief description of the drawings
Fig. 1 is structural representation of the present invention in spray gun off working state；
Fig. 2 is structural representation of the present invention when spray gun is in running order；
Fig. 3 is the annexation schematic diagram of the present invention.
The implication of reference：1- cylinders, 2- telescopic mechanisms, 3- drive links, 4- spray guns, 5- heat-proof devices, 6- is heat-insulated
Room, 7- executing agencies, 8- thermal insulation boards, 9- nozzles, 10- containment vessels, 11- atomization compressed air A interfaces, 12- reducing agent B interface,
13- fixed seats, 14- control systems.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Embodiment
Embodiments of the invention 1：As shown in FIG. 1 to 3, this kind of SNCR denitrification spray gun energy saver includes cylinder 1, can stretched
Through hole is offered on contracting mechanism 2, drive link 3, spray gun 4, heat-proof device 5 and heat-insulating room 6, boiler setting and furnace wall external thermal insulation, is led to
Heat-insulating room 6 is installed, boiler internal is stretched into the one end of heat-insulating room 6, and the other end is provided with fixed seat 13 on hole.It is provided with fixed seat 13
Cylinder 1, one end of cylinder 1 is connected with telescopic mechanism 2, and the bottom of cylinder 1 is also connected with spray gun 4 by drive link 3.Telescopic mechanism
2 drive the horizontal direction of spray gun 4 to stretch by the telescopic drive cylinder 1 of drive rod, cylinder 1 by drive link 3.Pacify on heat-insulating room 6
Equipped with heat-proof device 5, heat-proof device 5 is used for the break-make for controlling heat-insulating room 6.Heat-proof device 5 includes thermal insulation board 8 and driving thermal insulation board
Heat-insulating room 6 is separated into high-temperature region and low-temperature space by the executing agency 7 of 8 vertical shifts, thermal insulation board 8, is height close to the side of boiler
Warm area, the side of Keep away from boiler is low-temperature space.When spray gun 4 is in off working state, spray gun 4 is exited outside boiler furnace, performs machine
Structure 7 driving thermal insulation board 8 move down, heat-insulating room 6 is closed, allow nozzle 9 be maintained at low-temperature space protection spray gun 4 be notheated by
Damage.The size of thermal insulation board 8 is more than the sectional dimension of heat-insulating room 6, and heat-insulating room 6, thermal insulation board 8 are using on heat-barrier material, with boiler
Through hole also using heat-barrier material connect, further improve heat-insulating room 6 effect of heat insulation.Compressed provided with atomization one end of spray gun 4
Air A interfaces 11 and reducing agent B interface 12, reducing agent B interface 12 are ammonia inlet or urea liquid entrance, are atomized compressed air
A interfaces 11 and reducing agent B interface 12 respectively with respective pipeline communication, the other end of spray gun 4 is provided with nozzle 9.Spray gun 4 is close to spray
The auxiliary perforate of several size identicals is further opened with the side wall of the one end of mouth 9 so that reducing agent exports change by single nozzle 9
Into multiple outlets, reducing agent atomizing effect is improved, the mass-transfer efficiency with NOx is added, and then improved while reducing energy consumption
Denitration efficiency.Containment vessel 10 is also arranged with nozzle 9, the material of containment vessel 10 is ceramics.Pass through the setting of containment vessel 10, protection spray
Mouth 9 directly washes away reduction abrasion not by flue gas, and forms heat-insulated with outside, it is to avoid therefore the temperature of spray gun 4 improves.The energy saver
Control system 14 is additionally provided with, cylinder 1, telescopic mechanism 2 and the equal signal of heat-proof device 5 are connected to control system 14.Control system
14 control the current location of spray gun 4 and the opening and closing of heat-proof device 5 by cylinder 1, telescopic mechanism 2.
Embodiment 2：As shown in FIG. 1 to 3, a kind of SNCR denitrification spray gun energy saver include cylinder 1, telescopic mechanism 2,
Offer and installed on through hole, through hole on drive link 3, spray gun 4, heat-proof device 5 and heat-insulating room 6, boiler setting and furnace wall external thermal insulation
There is heat-insulating room 6, boiler internal is stretched into the one end of heat-insulating room 6, and the other end is provided with fixed seat 13.Cylinder 1, gas are installed in fixed seat 13
The one end of cylinder 1 is connected with telescopic mechanism 2, and the bottom of cylinder 1 is also connected with spray gun 4 by drive link 3.Telescopic mechanism 2 is by driving
The telescopic drive cylinder 1 of lever, cylinder 1 drives the horizontal direction of spray gun 4 to stretch by drive link 3.It is provided with heat-insulating room 6 heat-insulated
Device 5, heat-proof device 5 is used for the break-make for controlling heat-insulating room 6.
The operation principle of the present invention：When spray gun 4 is in running order, cylinder 1 drives spray gun 4 to extend by drive link 3,
Boiler internal is probeed into, reducing agent enters in spray gun 4 by nozzle 9 by being atomized compressed air A interfaces 11 and reducing agent B interface 12
And auxiliary perforate is sprayed, and is chemically reacted after being sufficiently mixed with the NOx in boiler, to remove NOx.The course of work
In, control system 14 adjusts the current location of spray gun 4 by cylinder 1, telescopic mechanism 2 in real time.When spray gun 4 is in off working state
When, the control spray gun 4 of control system 14 is exited outside boiler furnace, and nozzle 9 is contracted to the low-temperature space in heat-insulating room 6, and executing agency 7 drives
Dynamic thermal insulation board 8 is moved down, and heat-insulating room 6 is closed, and protection spray gun 4 is notheated impaired.
Claims (7)
1. a kind of SNCR denitrification spray gun energy saver, it is characterised in that including cylinder (1), telescopic mechanism (2), drive link
(3) through hole is offered on, spray gun (4), heat-proof device (5) and heat-insulating room (6), boiler setting and the furnace wall external thermal insulation, it is described
Heat-insulating room (6) is installed, boiler internal is stretched into described heat-insulating room (6) one end, and the other end is provided with fixed seat (13) on through hole；It is described
Cylinder (1) is installed, described cylinder (1) one end is connected with telescopic mechanism (2) in fixed seat (13), cylinder (1) bottom
Spray gun (4) is also connected with by drive link (3)；Heat-proof device (5) is installed on the heat-insulating room (6).
2. SNCR denitrification spray gun energy saver according to claim 1, it is characterised in that the heat-proof device (5) includes
Thermal insulation board (8) and the executing agency (7) for driving thermal insulation board (8) vertical shift.
3. SNCR denitrification spray gun energy saver according to claim 2, it is characterised in that the size of the thermal insulation board (8)
More than the sectional dimension of heat-insulating room (6).
4. SNCR denitrification spray gun energy saver according to claim 3, it is characterised in that one end of the spray gun (4) is set
There are atomization compressed air A interfaces (11) and reducing agent B interface (12), the other end of the spray gun (4) is provided with nozzle (9).
5. SNCR denitrification spray gun energy saver according to claim 4, it is characterised in that the spray gun (4) is close to nozzle
(9) the auxiliary perforate of several size identicals is further opened with the side wall of one end.
6. SNCR denitrification spray gun energy saver according to claim 5, it is characterised in that be also arranged on the nozzle (9)
There is containment vessel (10).
7. SNCR denitrification spray gun energy saver according to claim 6, it is characterised in that be additionally provided with control system (14),
The cylinder (1), telescopic mechanism (2) and heat-proof device (5) signal are connected to control system (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372867.3A CN107008136A (en) | 2017-05-24 | 2017-05-24 | A kind of SNCR denitrification spray gun energy saver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710372867.3A CN107008136A (en) | 2017-05-24 | 2017-05-24 | A kind of SNCR denitrification spray gun energy saver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107008136A true CN107008136A (en) | 2017-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710372867.3A Pending CN107008136A (en) | 2017-05-24 | 2017-05-24 | A kind of SNCR denitrification spray gun energy saver |
Country Status (1)
| Country | Link |
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| CN (1) | CN107008136A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931249A (en) * | 2017-12-22 | 2018-04-20 | 内蒙古欧晶科技股份有限公司 | Electrode automatic flushing device is melted in a kind of silica crucible |
| CN108284035A (en) * | 2018-03-26 | 2018-07-17 | 中国华电科工集团有限公司 | A kind of system and method preventing spray tip fouling |
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|---|---|---|---|---|
| CN203108427U (en) * | 2013-03-14 | 2013-08-07 | 沈阳信成科技有限公司 | Automatic adjusting and spraying equipment for denitrating cement kiln |
| CN203315998U (en) * | 2013-05-30 | 2013-12-04 | 上海守望者喷雾智能系统有限公司 | Flue gas denitration device and denitration spray gun |
| CN203355596U (en) * | 2013-07-17 | 2013-12-25 | 营口市环境工程开发有限公司 | Telescopic denitration spray gun |
| CN104399614A (en) * | 2014-11-17 | 2015-03-11 | 南京科思得能源技术有限公司 | High-temperature self-cooling denitration spray gun |
| WO2015177339A1 (en) * | 2014-05-23 | 2015-11-26 | M.A.L. Umwelttechnik - Gmbh | Injection device, system and method for flue gas denitrification |
| CN106237822A (en) * | 2016-08-25 | 2016-12-21 | 伟明环保设备有限公司 | A kind of front end atomization automatic telescopic spray gun of SNCR system |
| CN206810046U (en) * | 2017-05-24 | 2017-12-29 | 中国华电科工集团有限公司 | A kind of SNCR denitrification spray gun energy saver |
-
2017
- 2017-05-24 CN CN201710372867.3A patent/CN107008136A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203108427U (en) * | 2013-03-14 | 2013-08-07 | 沈阳信成科技有限公司 | Automatic adjusting and spraying equipment for denitrating cement kiln |
| CN203315998U (en) * | 2013-05-30 | 2013-12-04 | 上海守望者喷雾智能系统有限公司 | Flue gas denitration device and denitration spray gun |
| CN203355596U (en) * | 2013-07-17 | 2013-12-25 | 营口市环境工程开发有限公司 | Telescopic denitration spray gun |
| WO2015177339A1 (en) * | 2014-05-23 | 2015-11-26 | M.A.L. Umwelttechnik - Gmbh | Injection device, system and method for flue gas denitrification |
| CN104399614A (en) * | 2014-11-17 | 2015-03-11 | 南京科思得能源技术有限公司 | High-temperature self-cooling denitration spray gun |
| CN106237822A (en) * | 2016-08-25 | 2016-12-21 | 伟明环保设备有限公司 | A kind of front end atomization automatic telescopic spray gun of SNCR system |
| CN206810046U (en) * | 2017-05-24 | 2017-12-29 | 中国华电科工集团有限公司 | A kind of SNCR denitrification spray gun energy saver |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107931249A (en) * | 2017-12-22 | 2018-04-20 | 内蒙古欧晶科技股份有限公司 | Electrode automatic flushing device is melted in a kind of silica crucible |
| CN108284035A (en) * | 2018-03-26 | 2018-07-17 | 中国华电科工集团有限公司 | A kind of system and method preventing spray tip fouling |
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