CN207412761U - A kind of ammonium hydroxide vaporising device for SCR denitration system - Google Patents
A kind of ammonium hydroxide vaporising device for SCR denitration system Download PDFInfo
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- CN207412761U CN207412761U CN201721160164.6U CN201721160164U CN207412761U CN 207412761 U CN207412761 U CN 207412761U CN 201721160164 U CN201721160164 U CN 201721160164U CN 207412761 U CN207412761 U CN 207412761U
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- evaporation tube
- ammonium hydroxide
- interface
- ammonia
- scr denitration
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model provides a kind of ammonium hydroxide vaporising device for SCR denitration system, ammonium hydroxide can be flashed to ammonia by it, meet SCR denitration system normally spray ammonia use while, effective monitoring can be carried out to its inside and maintenance in time is cleared up, and will be arranged outside the ammonium hydroxide for having little time evaporation, avoid etching problem；Its ammonia water spray gun interface, hot air interface for including evaporation tube and being arranged on the evaporation tube, ammonia outlet is equipped at the top of the evaporation tube, the evaporation tube above the ammonia water spray gun interface is equipped with sight glass, the evaporation tube flange in the bottom is connected with cleaning interface, and evaporation tube bottom side is equipped with discharge interface.
Description
Technical field
The utility model is related to the technical fields of coal-fired power plant's equipment for denitrifying flue gas, especially selective catalytic reduction
（SCR）It is specially a kind of ammonium hydroxide for SCR denitration system for the vaporising device of denitrification reducing agent ammonium hydroxide in denitration project
Vaporising device.
Background technology
In boiler smoke SCR denitration engineering, the selection of reducing agent generally has three categories：Liquefied ammonia, ammonium hydroxide, urea；Wherein：
Liquefied ammonia belongs to dangerous material, and the requirement used is high；Urea needs pyrolysis installation, and the cost of investment is big, and runtime is complicated；And ammonium hydroxide
It is the preferred reducing agent of many producers at present, because most power plant is all built to be equipped with sulfur removal technology, itself has ammonium hydroxide area
Can utilize, directly by pipeline to stove area SCR denitration system at, then by ammonium hydroxide vaporising device, reducing agent ammonium hydroxide
Flash to ammonia, it is possible to ammonia use is normally sprayed for SCR denitration system, but existing ammonium hydroxide vaporising device can not observe ammonium hydroxide
Vaporising device inner case and ammonium hydroxide evaporation after, inner wall can still adhere to residue, and its bottom is the structure shut,
Also it is difficult to carrying out maintenance cleaning inside ammonium hydroxide vaporising device, in addition ammonium hydroxide excessively has little time to evaporate inside ammonium hydroxide vaporising device
When, it will be accumulated in inside ammonium hydroxide vaporising device, so as to cause etching problem inside ammonium hydroxide vaporising device.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of ammonium hydroxide vaporising device for SCR denitration system, it can
Ammonium hydroxide is flashed to ammonia, meet SCR denitration system normally spray ammonia use while, its inside can effectively be supervised
Depending on and in time maintenance cleaning, and will have little time evaporation ammonium hydroxide outside arrange, avoid etching problem.
Its technical solution is such：It include evaporation tube and be arranged on the evaporation tube ammonia water spray gun interface,
Hot air interface, the evaporation tube top are equipped with ammonia outlet, which is characterized in that the evaporation above the ammonia water spray gun interface
Pipe is equipped with sight glass, and the evaporation tube flange in the bottom is connected with cleaning interface, and evaporation tube bottom side is equipped with discharge and connects
Mouthful.
It is further characterized by, and the hot blast temperature being blown by the hot air interface is 280 °C~300 °C；The steaming
The material of pipe is sent out as 304 stainless steels, caliber is φ 630, and thickness is 4mm ~ 5mm.
The beneficial effects of the utility model are that sight glass is set on evaporation tube, the ammonia sprayed by sight glass observable
Water atomization effect situation, evaporation tube bottom side are equipped with discharge interface, can will have little time to steam inside evaporation tube by discharging interface
The ammonium hydroxide of hair carries out outer row, avoids the problem that being accumulated in evaporation tube and being connected with internal corrosion and evaporation tube flange in the bottom
Interface is cleared up, then after blowing out, interface is cleared up by dismantling, you can is stretched into from evaporation bottom of the tube, so as to which effectively maintenance cleaning is steamed
It sends out inside pipe.Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the left view of Fig. 1.
Specific embodiment
As shown in Figure 1 and Figure 2, the utility model includes evaporation tube 1, is disposed with and spies on from top to bottom on evaporation tube 1
Mirror 2, ammonia water spray gun interface 3, hot air interface 4, discharge interface 5, there are two sight glass is set, discharge interface 5 is arranged at evaporation tube bottom
End portion, ammonia outlet 6 are arranged at the top of evaporation tube 1, and cleaning 7 flanged joint of interface is in 1 bottom of evaporation tube；It is connect by hot wind
The hot blast temperature that mouth is blown into is 290 °C；The material of evaporation tube is 304 stainless steels, and caliber is φ 630, thickness 4.5mm.
The operation principle of the utility model is, when the reducing agent ammonium hydroxide of SCR denitration, to be atomized and sprayed by ammonia water spray gun interface 3
When entering in evaporation tube 1, the ammonium hydroxide for being atomized penetrating is flashed to ammonia by hot air interface 4 using 290 °C of hot wind, passes through evaporation tube 1
Upper ammonia outlet 6 into upstream device, i.e. ammonia-spraying grid, so as to uniformly spray into SCR denitration flue, meets SCR denitration system
The normal spray ammonia of system uses；For wherein sight glass 2 for observing the ammonia atomization effect situation sprayed into, discharge interface 5 is used for ammonium hydroxide
When excessively having little time evaporation, waste ammonia liquor pipe-line system can be connected to and directly exhausted outside, avoid being accumulated in evaporation tube 1 and making internal corrosion
The problem of, cleaning interface 7 is flange seal form, and the removable internal cleaning for evaporation tube 1 works after blowing out inspection, you can
Inside is stretched into from 1 bottom of evaporation tube by steel plate brush, so as to effectively clear up 1 inner wall of evaporation tube attachment residue.
Claims (2)
1. a kind of ammonium hydroxide vaporising device for SCR denitration system including evaporation tube and is arranged on the evaporation tube
Ammonia water spray gun interface, hot air interface, the evaporation tube top are equipped with ammonia outlet, which is characterized in that the ammonia water spray gun interface
The evaporation tube of top is equipped with sight glass, and the evaporation tube flange in the bottom is connected with cleaning interface, the evaporation tube bottom
Side is equipped with discharge interface.
2. a kind of ammonium hydroxide vaporising device for SCR denitration system according to claim 1, which is characterized in that pass through institute
It is 280 °C~300 °C to state the hot blast temperature that hot air interface is blown into；The material of the evaporation tube be 304 stainless steels, caliber φ
630, thickness is 4mm ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160164.6U CN207412761U (en) | 2017-09-12 | 2017-09-12 | A kind of ammonium hydroxide vaporising device for SCR denitration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160164.6U CN207412761U (en) | 2017-09-12 | 2017-09-12 | A kind of ammonium hydroxide vaporising device for SCR denitration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207412761U true CN207412761U (en) | 2018-05-29 |
Family
ID=62316083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721160164.6U Active CN207412761U (en) | 2017-09-12 | 2017-09-12 | A kind of ammonium hydroxide vaporising device for SCR denitration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207412761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331490A (en) * | 2018-10-23 | 2019-02-15 | 中国华电科工集团有限公司 | A kind of novel ammonia water evaporator |
| CN111420551A (en) * | 2020-04-08 | 2020-07-17 | 哈尔滨锅炉厂有限责任公司 | Ammonia water evaporation device for SCR denitration injection system |
-
2017
- 2017-09-12 CN CN201721160164.6U patent/CN207412761U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331490A (en) * | 2018-10-23 | 2019-02-15 | 中国华电科工集团有限公司 | A kind of novel ammonia water evaporator |
| CN111420551A (en) * | 2020-04-08 | 2020-07-17 | 哈尔滨锅炉厂有限责任公司 | Ammonia water evaporation device for SCR denitration injection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220929 Address after: 3 / F, 406 Jinhua North Road, Xincheng District, Xi'an, Shaanxi 710000 Patentee after: Huaguang Environmental Energy (Xi'an) Design and Research Institute Co.,Ltd. Address before: No. 123, Meiyu Road, New District, Wuxi City, Jiangsu Province, 214112 Patentee before: WUXI HUAGUANG NEW POWER ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |