CN201342320Y - Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant - Google Patents

Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant Download PDF

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Publication number
CN201342320Y
CN201342320Y CNU2009201050638U CN200920105063U CN201342320Y CN 201342320 Y CN201342320 Y CN 201342320Y CN U2009201050638 U CNU2009201050638 U CN U2009201050638U CN 200920105063 U CN200920105063 U CN 200920105063U CN 201342320 Y CN201342320 Y CN 201342320Y
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CN
China
Prior art keywords
ammonia
ammonia gas
nozzle
porous
denitration
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.)
Expired - Lifetime
Application number
CNU2009201050638U
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Chinese (zh)
Inventor
周舒丹
叶力平
翁卫国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG GUANGHAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
Original Assignee
周舒丹
叶力平
翁卫国
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Filing date
Publication date
Application filed by 周舒丹, 叶力平, 翁卫国 filed Critical 周舒丹
Priority to CNU2009201050638U priority Critical patent/CN201342320Y/en
Application granted granted Critical
Publication of CN201342320Y publication Critical patent/CN201342320Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a porous ammonia gas spraying nozzle for an ammonia gas spraying denitration system in a fuel electric plant, which belongs to the field of components for the denitration system. A gas inlet straight pipe of the porous ammonia gas spraying nozzle for the ammonia gas spraying denitration system is connected with a spherical cap-shaped mixer; a central spraying nozzle is fixed in the center of the spherical cap-shaped mixer; and four lateral spraying nozzles are evenly distributed at the periphery of the central spraying nozzle. The ammonia gas enters into the spherical cap-shaped mixer from the gas inlet straight pipe; the spherical cap-shaped mixer enables ammonia gas pressure to be stable and spraying speed to be even; the ammonia gas is sprayed into the outer space through five spraying pipes at different angles, so that the ammonia gas can be evenly distributed in the outer space; and the utility model facilitates the even mixture between ammonia gas and flue gas, thereby improving the denitration rate of the ammonia spraying denitration system in the fuel electric plant.

Description

The porous spray ammonia nozzle of thermal power plant spray ammonia denitrating system
Technical field
The utility model belongs to the components range of denitrating system, particularly a kind of porous spray ammonia nozzle of thermal power plant spray ammonia denitrating system.
Background technology
Conventional spray ammonia nozzle arrangements is simple, nozzle spray angle is single, often only adopt simple straight-run of pipe, the velocity perturbation of spray ammonia is bigger, and is relatively poor to the disturbance effect of flue gas, ammonia is injected to skewness behind the flue, make ammonia inhomogeneous with mixing of flue gas, cause denitration efficiency to reduce and the increase of ammonia escapement ratio, ammonia and flue gas mixed effect are relatively poor, NH3/NO is more inhomogeneous than distributing, and causes denitration rate and the escaping of ammonia rate all undesirable.In order to improve the mixed effect of ammonia and flue gas, can adopt following way: 1) static mixer is installed; 2) improve the speed of spraying fluid; 3) improve playpipe quantity; Above method all is widely used at the scene, can adopt simultaneously to improve mixed effect, but mixed effect is not very good, the distribution of ammonia appears improving with the modification designs of nozzles at present, the utility model is exactly one of them, externally spatial distribution is even further to improve ammonia, ammonia and flue gas are mixed and improves mixed effect.
Summary of the invention
The purpose of this utility model is simple at routine spray ammonia nozzle arrangements, spray angle is single, the velocity perturbation of spray ammonia is bigger, disturbance effect to flue gas is relatively poor, cause denitration efficiency to reduce and the increase of ammonia escapement ratio, NH3/NO is more inhomogeneous than distributing, cause all unfavorable deficiency of denitration rate and the escaping of ammonia rate, and the porous that a kind of thermal power plant spray ammonia denitrating system is provided is sprayed the ammonia nozzle, it is characterized in that, described denitrating system the air inlet straight tube 4 of porous spray ammonia nozzle is connected with spherical blender 3, at spherical blender 3 center fixation central nozzles 1, four side nozzles 2. of even distribution around central nozzle 1.
Described central nozzle 1 is the playpipe of external diameter 20mm, long 20mm, wall thickness 2mm; Four side nozzle 2 external diameters are the playpipe of 15mm, long 20mm, wall thickness 2mm.
Described four side nozzles all are 35 ° of angles with central axis.
Described nozzle adopts carbon steel material to make.
The beneficial effects of the utility model are, ammonia enters into spherical blender from the air inlet straight tube, spherical blender makes ammonia pressure stable, jet velocity is even, ammonia is injected to space outerpace by five different playpipes of angle, externally spatial distribution is even to make ammonia, helps ammonia and flue gas mixes, thereby improves the denitration rate of thermal power plant spray ammonia denitrating system.
Description of drawings
Fig. 1 is the porous spray ammonia nozzle profile schematic diagram of denitrating system.
Fig. 2 is the vertical view of the porous spray ammonia nozzle of denitrating system.
Fig. 3 is the profile of the porous spray ammonia nozzle of denitrating system.
The specific embodiment
The utility model provides a kind of porous spray ammonia nozzle of thermal power plant spray ammonia denitrating system, its profile and structure are as shown in Figure 1 to Figure 3, described denitrating system the air inlet straight tube 4 of porous spray ammonia nozzle be connected with spherical blender 3, at spherical blender 3 center fixation central nozzles 1, four side nozzles 2 evenly distribute around central nozzle 1.The most outstanding appearance characteristics of spray ammonia nozzle is five nozzles that distributed on the spherical crown different angles.Central nozzle 1 is the playpipe of external diameter 20mm, long 20mm, wall thickness 2mm, and four side nozzle 2 external diameters are the playpipe of 15mm, long 20mm, wall thickness 2mm, and four playpipes all are 35 ° of angles with central axis.Air inlet straight tube 4 external diameters are 30mm, long 50mm, spherical crown radius 60mm.Ammonia enters into spherical blender 3 from air inlet straight tube 4, spherical blender makes ammonia pressure stable, jet velocity is even, be injected to space outerpace by five different nozzles of angle again, externally spatial distribution is even to make ammonia, help improving the denitration rate of thermal power plant spray ammonia denitrating system, thereby improve the denitration rate of thermal power plant spray ammonia denitrating system.

Claims (4)

1. the porous of a thermal power plant spray ammonia denitrating system is sprayed the ammonia nozzle, it is characterized in that, the air inlet straight tube (4) of the porous spray ammonia nozzle of described denitrating system is connected with spherical blender (3), at spherical blender (3) center fixation central nozzle (1), at central nozzle (1) four side nozzles (2) that evenly distribute on every side.
2. spray the ammonia nozzle according to the porous of the described thermal power plant spray of claim 1 ammonia denitrating system, it is characterized in that, described central nozzle (1) is the playpipe of external diameter 20mm, long 20mm, wall thickness 2mm, and four side nozzles (2) external diameter is the playpipe of 15mm, long 20mm, wall thickness 2mm.
3. according to the porous spray ammonia nozzle of the described thermal power plant spray of claim 1 ammonia denitrating system, it is characterized in that described four side nozzles all are 35 ° of angles with central axis.
4. according to the porous spray ammonia nozzle of the described thermal power plant spray of claim 1 ammonia denitrating system, it is characterized in that described nozzle adopts carbon steel material to make.
CNU2009201050638U 2009-01-13 2009-01-13 Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant Expired - Lifetime CN201342320Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009201050638U CN201342320Y (en) 2009-01-13 2009-01-13 Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009201050638U CN201342320Y (en) 2009-01-13 2009-01-13 Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant

Publications (1)

Publication Number Publication Date
CN201342320Y true CN201342320Y (en) 2009-11-11

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350216A (en) * 2011-09-06 2012-02-15 浙江蓝天求是环保集团有限公司 Tripod nozzle device of thermal power station ammonia-injection and denitration system
CN102357348A (en) * 2011-09-14 2012-02-22 无锡华光新动力环保科技股份有限公司 Reducing agent-air mixing device for flue gas denitration system
CN103127817A (en) * 2013-02-20 2013-06-05 常州大学 Liquid supplementation device used in gas purification device
CN108993143A (en) * 2018-08-29 2018-12-14 哈尔滨锅炉厂有限责任公司 Accumulatingdust multi-direction type ammonia injection apparatus for SCR denitration
CN109967273A (en) * 2019-04-03 2019-07-05 中船动力研究院有限公司 A kind of nozzle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350216A (en) * 2011-09-06 2012-02-15 浙江蓝天求是环保集团有限公司 Tripod nozzle device of thermal power station ammonia-injection and denitration system
CN102357348A (en) * 2011-09-14 2012-02-22 无锡华光新动力环保科技股份有限公司 Reducing agent-air mixing device for flue gas denitration system
CN102357348B (en) * 2011-09-14 2013-07-10 无锡华光新动力环保科技股份有限公司 Reducing agent-air mixing device for flue gas denitration system
CN103127817A (en) * 2013-02-20 2013-06-05 常州大学 Liquid supplementation device used in gas purification device
CN103127817B (en) * 2013-02-20 2015-11-18 常州大学 For the liquid replenisher in gas cleaning plant
CN108993143A (en) * 2018-08-29 2018-12-14 哈尔滨锅炉厂有限责任公司 Accumulatingdust multi-direction type ammonia injection apparatus for SCR denitration
CN109967273A (en) * 2019-04-03 2019-07-05 中船动力研究院有限公司 A kind of nozzle

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: HANGZHOU GUANGHAN ENERGY TECHNOLOGY CO., LTD.

Assignor: Zhou Shudan|Ye Liping|Weng Weiguo

Contract record no.: 2010330001405

Denomination of utility model: Porous ammonia gas spraying nozzle for ammonia gas spraying denitration system in fuel electric plant

Granted publication date: 20091111

License type: Exclusive License

Record date: 20100720

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 310027 HANGZHOU, ZHEJIANG PROVINCE TO: 310051 HANGZHOU, ZHEJIANG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20121225

Address after: Hangzhou City, Zhejiang province 310051 Binjiang District Jiangling Qianjiang Road No. 2031 building 21 floor room 2101

Patentee after: HANGZHOU GUANGHAN ENERGY TECHNOLOGY CO., LTD.

Address before: Hua Rong creative building No. 3760 South Ring Road in Binjiang District Hangzhou city Zhejiang province 310027 room 1402

Patentee before: Zhou Shudan

Patentee before: Ye Liping

Patentee before: Weng Weiguo

ASS Succession or assignment of patent right

Owner name: HANGZHOU GUANGHAN ENERGY TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: ZHOU SHUDAN

Effective date: 20121225

Free format text: FORMER OWNER: YE LIPING WENG WEIGUO

Effective date: 20121225

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee
CP03 Change of name, title or address

Address after: 311200, No. two, No. 1111, Qingxi Road, Jiangdong Industrial Park, Xiaoshan, Hangzhou, Zhejiang, Hangzhou

Patentee after: ZHEJIANG GUANGHAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.

Address before: Hangzhou City, Zhejiang province 310051 Binjiang District Jiangling Qianjiang Road No. 2031 building 21 floor room 2101

Patentee before: HANGZHOU GUANGHAN ENERGY TECHNOLOGY CO., LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20091111