CN108787203A - A kind of spray gun for denitrification apparatus - Google Patents
A kind of spray gun for denitrification apparatus Download PDFInfo
- Publication number
- CN108787203A CN108787203A CN201810699843.3A CN201810699843A CN108787203A CN 108787203 A CN108787203 A CN 108787203A CN 201810699843 A CN201810699843 A CN 201810699843A CN 108787203 A CN108787203 A CN 108787203A
- Authority
- CN
- China
- Prior art keywords
- reducing agent
- spray gun
- agent pipe
- denitrification apparatus
- cooling cylinder
- 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
Links
Classifications
-
- 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
-
- 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
- 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
Landscapes
- 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)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of spray guns for denitrification apparatus,The spray gun for denitrification apparatus includes reducing agent pipe and semi-enclosed cooling cylinder,Reducing agent pipe concentric is set in cooling cylinder and forms the cooling duct for presetting spacing between the outer wall of reducing agent pipe and the inner wall of cooling cylinder,The front end that the first connector reducing agent pipe mixed for reducing agent and atomizing air is detachably equipped on reducing agent pipe is detachably equipped with atomizer,The rear portion of cool air hose is equipped with the second connector for being connected with the cold wind delivery pipe of cold wind generator,A kind of spray gun for denitrification apparatus of the present invention is when adiabatic furnace is run,Cold wind is uninterruptedly cooling to achieve the effect that spray gun can be steadily in the long term to the atomization sprinkling reducing agent of burner hearth by one end that spray gun is stretched into burner hearth in the cooling duct between cooling cylinder and reducing agent pipe,Spray gun displacement is installed additional without paying great number cost,Spray gun channel switch auxiliary system,To realize the effect of saving of purchase cost and maintenance cost.
Description
Technical field
The present invention relates to environmental protective chemical industry technical fields, and in particular to a kind of spray gun for denitrification apparatus.
Background technology
SNCR denitration technology refers to passing through spray gun with reducing agents such as ammonium hydroxide or urea under conditions of no catalyst participates in
It sprays and is atomized and the NOx in flue gas is reduced to nitrogen and water, it is existing because the temperature in adiabatic furnace is up to 1000-1200 DEG C
The jet pipe of the spray gun of denitrification apparatus be also easy to produce after stretching into adiabatic furnace because temperature is excessively high deform lead to obstruction spray orifice the problem of,
The problem of to cause to can not achieve the effect of denitration, existing solution are to install spray gun displacement auxiliary system additional and in thermal insulation
The opening and closing auxiliary system for installing spray gun channel on furnace wall additional is gone back when that need not spray ammonium hydroxide or urea etc. into adiabatic furnace
When former agent, spray gun displacement system retreats to spray gun outside burner hearth, and subsequent spray gun channel is closed, when needs spray ammonia or urine into burner hearth
When the reducing agents such as element, spray gun channel is opened, and spray gun displacement system stretches to spray gun in burner hearth, installs above-mentioned two auxiliary system additional
The increase of buying denitrification apparatus expense is caused to enterprise, the operation of denitrification apparatus is complicated, the big problem of repair and maintenance amount.
Invention content
The purpose of the present invention is to provide a kind of spray guns for denitrification apparatus, to solve the spray gun of existing denitrification apparatus
The problem that high temperature resistance is poor, use cost is high.
To achieve the above object, the technical scheme is that a kind of spray gun for denitrification apparatus, described to be used for denitration
The spray gun of device includes reducing agent pipe and semi-enclosed cooling cylinder, and reducing agent pipe concentric is set in cooling cylinder and reducing agent pipe
Outer wall and the inner wall of cooling cylinder between form the cooling duct for presetting spacing, be detachably equipped on reducing agent pipe and be used for reducing agent
It is detachably equipped with atomizer with the front end of the first connector reducing agent pipe of atomizing air mixing, the rear portion of cool air hose, which is equipped with, to be used for
The second connector connected with the cold wind delivery pipe of cold wind generator, the second connector are connected to the cooling duct.
Preferably, the barrel of the cooling tube rear end is equipped with through-hole, the rear end of the reducing agent pipe is by cooling cylinder
Front end extend through through-hole stretching, first connector be mounted on reducing agent pipe rear end on.
Preferably, the rear portion of the reducing agent pipe is equipped with the block of protrusion, the barrel of block and cooling tube rear end it
Between be equipped with annular air packing, annular air packing is set on reducing agent pipe.
Preferably, the rear end of the reducing agent pipe is equipped with external screw thread, one end of first connector is equipped with internal thread,
First connector is tightened on the rear end of reducing agent pipe and reducing agent pipe and cooling cylinder is fixed together.
Preferably, the middle part or front of the reducing agent pipe are equipped with support portion.
Preferably, the support portion includes toroidal frame and three support legs, the diameter of toroidal frame and cooling cylinder it is interior
Diameter is equal, and three support legs are arranged evenly and at intervals between the outer wall and toroidal frame of reducing agent pipe.
Preferably, the cooling cylinder is equipped with flange seat, flange seat is equipped with adjustable bolt.
Preferably, first connector is equipped with the first connection for being connected to the delivery pipe of reducing agent holding vessel
The second connecting portion that portion is connected to for the appendix with air compressor machine.
The invention has the advantages that：
For a kind of spray gun for denitrification apparatus of the present invention when adiabatic furnace is run, cold wind passes through cooling cylinder and reducing agent
The uninterrupted cooling in one end that spray gun is stretched into burner hearth in cooling duct between pipe can be steadily in the long term to stove to reach spray gun
The effect of the atomization sprinkling reducing agent of thorax installs spray gun displacement, spray gun channel switch auxiliary system additional without paying great number cost, from
And realize the effect of saving of purchase cost and maintenance cost.
Description of the drawings
Fig. 1 is a kind of vertical profile structural schematic diagram of spray gun for denitrification apparatus of the present invention.
Fig. 2 is a kind of cross-sectional structural schematic diagram of spray gun for denitrification apparatus of the present invention.
Fig. 3 is a kind of sectional perspective structural schematic diagram of spray gun for denitrification apparatus of the present invention.
Fig. 4 is that a kind of spray gun for denitrification apparatus of the present invention is mounted on the schematic diagram on heat insulation furnace.
Specific implementation mode
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
A kind of spray gun for denitrification apparatus as depicted in figs. 1 and 2, the spray gun for denitrification apparatus include reduction
Agent pipe 1 and semi-enclosed cooling cylinder 2,1 concentric of reducing agent pipe is set in cooling cylinder 2 and outer wall and the cooling of reducing agent pipe 1
The cooling duct for presetting spacing is formed between the inner wall of cylinder 2, is detachably equipped on reducing agent pipe 1 and is used for reducing agent and atomizing air
The front end of the 11 reducing agent pipe 1 of the first connector of mixing is detachably equipped with atomizer 12, the rear portion of cool air hose 2 be equipped with for and it is cold
Second connector 21 of the cold wind delivery pipe connection of wind generation apparatus, the second connector 21 are connected to the cooling duct.
Preferably, the middle part or front of the reducing agent pipe 1 are equipped with support portion 14, and support portion 14 plays support reducing agent pipe 1
With the effect of 2 concentric of cooling cylinder.
Preferably, the support portion 14 includes toroidal frame 141 and three support legs 142, the diameter of toroidal frame 141 and cooling
The interior diameter of cylinder 2 is equal, and three support legs 142 are arranged evenly and at intervals between the outer wall and toroidal frame 141 of reducing agent pipe 1,
Three support legs 142 can be respectively welded on the outer wall of reducing agent pipe 1.
Preferably, the cooling cylinder 2 is equipped with flange seat 23, and flange seat 23 is equipped with adjustable bolt 231, and spiral shell is adjusted
Bolt 231 plays 23 position of adjusting and mounting flange seat.
Preferably, first connector 11 is equipped with the first connecting portion for being connected to the delivery pipe of reducing agent holding vessel
111 second connecting portions 112 being connected to for the appendix with air compressor machine.
Preferably, as shown in figure 3, the barrel of 2 rear end of the cooling cylinder is equipped with through-hole 22, after the reducing agent pipe 1
End extends through through-hole 22 by the front end of cooling cylinder 2 and stretches out, and first connector 11 is mounted on the rear end of reducing agent pipe 1.
It is further preferred that the rear portion of the reducing agent pipe 1 is equipped with the block 12 of protrusion, 2 rear end of block 12 and cooling cylinder
Barrel between be equipped with annular air packing 13, annular air packing 13 is set on reducing agent pipe 1, the rear end of the reducing agent pipe 1
Equipped with external screw thread, one end of first connector 11 is equipped with internal thread, and the internal thread of the first connector 11 is not shown in figure, and first connects
First 11 are tightened on the rear end of reducing agent pipe 1 and reducing agent pipe 1 and cooling cylinder 2 are fixed together.
A kind of spray gun for denitrification apparatus of the present invention is mounted on the furnace wall of heat insulation furnace 3 by flange seat 23, such as Fig. 4
It is shown, cooling cylinder 2 is accessed to the cold wind dispatch tube of cold wind generator by the second connector 21, reducing agent pipe 1 is passed through first
The first connecting portion 111 and second connecting portion 112 of connector 11 are respectively communicated with the reducing agent delivery pipe of reducing agent holding vessel, air compressor machine
Appendix, when adiabatic furnace is run, the cold wind of cold wind generator passes through the cooling between cooling cylinder 2 and reducing agent pipe 1
One end that channel is stretched into spray gun in the burner hearth of heat insulation furnace 3 is uninterruptedly cooling to achieve the effect that spray gun high temperature resistance, from
Spray gun displacement is installed additional without paying great number cost, spray gun channel switch auxiliary system can realize long-term normal atomized spray
The effect of reducing agent.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (8)
1. a kind of spray gun for denitrification apparatus, it is characterised in that：The spray gun for denitrification apparatus includes reducing agent pipe (1)
With semi-enclosed cooling cylinder (2), reducing agent pipe (1) concentric is set in cooling cylinder (2) and the outer wall of reducing agent pipe (1) and cold
But the cooling duct for presetting spacing is formed between the inner wall of cylinder (2), is detachably equipped on reducing agent pipe (1) and is used for reducing agent and mist
The front end for changing the first connector (11) the reducing agent pipe (1) of air mixing is detachably equipped with atomizer (12), after cool air hose (2)
Portion is equipped with the second connector (21) for being connected with the cold wind delivery pipe of cold wind generator, the second connector (21) and the cooling
Channel is connected to.
2. a kind of spray gun for denitrification apparatus according to claim 1, it is characterised in that：Cooling cylinder (2) rear end
Barrel be equipped with through-hole (22), the rear end of the reducing agent pipe (1) extends through through-hole (22) by the front end of cooling cylinder (2)
It stretches out, first connector (11) is mounted on the rear end of reducing agent pipe (1).
3. a kind of spray gun for denitrification apparatus according to claim 2, it is characterised in that：The reducing agent pipe (1)
Rear portion is equipped with the block (12) of protrusion, and annular air packing (13), ring are equipped between block (12) and the barrel of cooling cylinder (2) rear end
Shape air packing (13) is set on reducing agent pipe (1).
4. a kind of spray gun for denitrification apparatus according to claim 2, it is characterised in that：The reducing agent pipe (1)
Rear end is equipped with external screw thread, and one end of first connector (11) is equipped with internal thread, and the first connector (11) is tightened in reducing agent pipe (1)
Rear end on and reducing agent pipe (1) and cooling cylinder (2) be fixed together.
5. a kind of spray gun for denitrification apparatus according to any one of claim 1-4, it is characterised in that：The reduction
The middle part or front of agent pipe (1) are equipped with support portion (14).
6. a kind of spray gun for denitrification apparatus according to claim 5, it is characterised in that：The support portion (14) includes
Toroidal frame (141) and three support legs (142), the diameter of toroidal frame (141) and the interior diameter of cooling cylinder (2) are equal, three branch
Support leg (142) is arranged evenly and at intervals between the outer wall and toroidal frame (141) of reducing agent pipe (1).
7. a kind of spray gun for denitrification apparatus according to claim 1, it is characterised in that：It is set on the cooling cylinder (2)
There are flange seat (23), flange seat (23) to be equipped with adjustable bolt (231).
8. a kind of spray gun for denitrification apparatus according to claim 1, it is characterised in that：On first connector (11)
It is connected to for the appendix with air compressor machine equipped with the first connecting portion (111) for being connected to the delivery pipe of reducing agent holding vessel
Second connecting portion (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699843.3A CN108787203A (en) | 2018-06-29 | 2018-06-29 | A kind of spray gun for denitrification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810699843.3A CN108787203A (en) | 2018-06-29 | 2018-06-29 | A kind of spray gun for denitrification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108787203A true CN108787203A (en) | 2018-11-13 |
Family
ID=64073840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810699843.3A Pending CN108787203A (en) | 2018-06-29 | 2018-06-29 | A kind of spray gun for denitrification apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108787203A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204429530U (en) * | 2015-02-09 | 2015-07-01 | 江苏正通宏泰股份有限公司 | A kind of denitration air atomization spray gun |
| CN204544529U (en) * | 2015-04-08 | 2015-08-12 | 张卿 | A kind of for the air cooling spray gun device in SNCR technique |
| CN204602468U (en) * | 2015-05-04 | 2015-09-02 | 云南燊永环保科技有限公司 | A kind of denitration spray gun device |
| CN206372996U (en) * | 2016-11-05 | 2017-08-04 | 亚德（上海）环保系统有限公司 | A kind of high temperature resistant chilling spray gun and a kind of chilling tower |
| CN206391873U (en) * | 2016-12-30 | 2017-08-11 | 东莞市鑫悦净化科技有限公司 | Denitration device |
| CN207056307U (en) * | 2017-04-10 | 2018-03-02 | 斯普瑞喷雾系统(上海)有限公司 | A kind of urea pyrolysis cantilever multi-point atomizing denitration spray gun |
| CN207238298U (en) * | 2017-09-30 | 2018-04-17 | 江西远达环保有限公司 | Denitration spray gun for desulfuration |
-
2018
- 2018-06-29 CN CN201810699843.3A patent/CN108787203A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204429530U (en) * | 2015-02-09 | 2015-07-01 | 江苏正通宏泰股份有限公司 | A kind of denitration air atomization spray gun |
| CN204544529U (en) * | 2015-04-08 | 2015-08-12 | 张卿 | A kind of for the air cooling spray gun device in SNCR technique |
| CN204602468U (en) * | 2015-05-04 | 2015-09-02 | 云南燊永环保科技有限公司 | A kind of denitration spray gun device |
| CN206372996U (en) * | 2016-11-05 | 2017-08-04 | 亚德（上海）环保系统有限公司 | A kind of high temperature resistant chilling spray gun and a kind of chilling tower |
| CN206391873U (en) * | 2016-12-30 | 2017-08-11 | 东莞市鑫悦净化科技有限公司 | Denitration device |
| CN207056307U (en) * | 2017-04-10 | 2018-03-02 | 斯普瑞喷雾系统(上海)有限公司 | A kind of urea pyrolysis cantilever multi-point atomizing denitration spray gun |
| CN207238298U (en) * | 2017-09-30 | 2018-04-17 | 江西远达环保有限公司 | Denitration spray gun for desulfuration |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104888990B (en) | Twin spray gun | |
| CN204051973U (en) | A kind of injector for SNCR denitration system | |
| CN205216566U (en) | SNCR (Selective non catalytic reduction) denitration device | |
| CN106423679A (en) | Grid injection system for flue gas denitrification | |
| CN204672469U (en) | A kind of SNCR of being applicable to technique carries out injector and the boiler by spraying structure of denitrating flue gas | |
| CN103212285B (en) | A kind of Denitration urea injector | |
| CN202983929U (en) | Spray gun device for selective non-catalytic reduction (SNCR) denitration | |
| CN204911865U (en) | Twin -fluid atomization shower nozzle with adjustable | |
| CN108787203A (en) | A kind of spray gun for denitrification apparatus | |
| CN206215435U (en) | For the grid spraying system of denitrating flue gas | |
| CN209431446U (en) | A kind of high-temperature flue gas pipeline with spray-chilling device | |
| CN207056307U (en) | A kind of urea pyrolysis cantilever multi-point atomizing denitration spray gun | |
| CN204503391U (en) | Ammonia water spray gun | |
| CN212758041U (en) | Medium and low temperature SCR denitration ammonia injection system | |
| CN108939903B (en) | Online eliminating device and method for SCR urea method denitration nozzle crystallization | |
| CN203971758U (en) | A kind of denitrating flue gas spraying urea liquid emitter | |
| JP2731384B2 (en) | Water injection cooling device | |
| CN104858076A (en) | Desulfurization and denitrification atomization spraying gun | |
| CN206027449U (en) | Denitration nozzle base frame and many shower nozzles denitration spray gun barral of a gun | |
| CN205165008U (en) | Denitration spray gun | |
| CN206577589U (en) | One kind is applied to the simple ammonia-gas spraying device of large coal-fired boiler | |
| CN208642305U (en) | A kind of desulfurizing tower import spray equipment | |
| CN208032849U (en) | A kind of durable and efficient denitration spray gun | |
| CN207324496U (en) | Novel anti-blockage nozzle applied to SNCR-SCR direct-injection systems | |
| CN219128825U (en) | Ammonia mixing device with a plurality of spray guns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |