CN106000053A - Combined ammonia injection grid device - Google Patents
Combined ammonia injection grid device Download PDFInfo
- Publication number
- CN106000053A CN106000053A CN201610539565.6A CN201610539565A CN106000053A CN 106000053 A CN106000053 A CN 106000053A CN 201610539565 A CN201610539565 A CN 201610539565A CN 106000053 A CN106000053 A CN 106000053A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- grid device
- nozzle
- spraying grid
- combination type
- 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
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/32—Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/10—Nitrogen
Abstract
The invention relates to a combined ammonia injection grid device, and belongs to the technical field of flue gas denitration. The combined ammonia injection grid device is arranged in a flue and comprises a plurality of ammonia injection grid units; each ammonia injection grid unit comprises a plurality of injection pipes, a plurality of nozzle pipes and a plurality of fixing supports; the injection pipes are connected with ammonia-air mixed gas channels respectively, are all in an L shape and are arranged in a longitudinally parallel and staggered mode; the nozzle pipes are arranged in a transversely parallel mode, each nozzle pipe is provided with a plurality of nozzles, and the injection pipes and the nozzle pipes are connected through connection pipes; the fixing supports are longitudinally arranged along the flue and are perpendicular to the nozzle pipes, and the injection pipes and the nozzle pipes are both fixed on the fixing supports. According to the ammonia injection grid device, the structure is simple, regulation is convenient, ammonia and flue gas are mixed more uniformly, and the nitrogen oxide removing efficiency is improved.
Description
Technical field
The present invention relates to a kind of combination type ammonia-spraying grid device, belong to gas denitrifying technology field.
Background technology
Health can be caused directly harm by nitrogen oxides, and participates in forming photochemical fog, forms acid
Rain, causes environmental pollution.It addition, nitrous oxide is a kind of greenhouse gases, can damage the ozone layer.Flue gas
Denitration is another major fields of state control thermal power plant pollutant emission after flue gas desulfurization.Along with
The development of society, requires to have increased significantly to thermal power plant's discharged nitrous oxides.Cigarette to thermal power plant
QI prostration nitre mainly uses ammonia as reducing agent, becomes harmless nitrogen and water to steam conversion of nitrogen oxides by ammonia
Gas.In denitrating system design, ammonia and being sufficiently mixed of nitrogen oxides are crucial factors, the uneven meeting of mixing
The escape ammonia amount of relatively low denitration rate or higher occurs, it is therefore desirable to one can be by abundant to ammonia and flue gas
Mixing, to ensure the denitration ammonia-spraying grid device of nitrogen oxide emission or escape ammonia amount.
Summary of the invention
For solving the problems referred to above, it is an object of the invention to provide a kind of combination type ammonia-spraying grid device.
It is an object of the invention to be achieved through the following technical solutions:
A kind of combination type ammonia-spraying grid device, it is arranged in flue, including several ammonia-spraying grid unit,
Each ammonia-spraying grid unit includes:
Several playpipes, it connects ammonia sky mixed gas passage respectively, and several playpipes described are all in L
Type, and it parallel longitudinal is crisscross arranged；
Several blast tubes, its horizontally-parallel setting, each blast tube is equipped with several nozzles,
Being provided with connecting tube between two adjacent blast tubes, described connecting tube is perpendicular to described blast tube and arranges, institute
State playpipe to be connected by connecting tube with blast tube；
Several fixed supports, it is longitudinally arranged along flue, and is perpendicular to described blast tube, described injection
Pipe and blast tube are each attached on described fixed support.
Further, the nozzle opening on described blast tube is towards the airintake direction of flue gas.
Further, the nozzle on described blast tube is Bidirectional nozzle.
Further, the nozzle on each blast tube is evenly arranged.
Further, the nozzle interlaced arrangement or positioned opposite on adjacent two blast tubes.
Further, each playpipe is equipped with Hand-operated butterfly valve.
Further, each playpipe is equipped with effusion meter.
Further, described blast tube is perpendicular to the flow direction of flue gas.
The invention have the benefit that
Ammonia-spraying grid device simple in construction of the present invention, easy to adjust, ammonia mixes more equal with flue gas
Even, improve the removal efficiency of nitrogen oxides.It addition, ammonia-spraying grid device of the present invention is provided with fixing
Support so that playpipe and blast tube are more firm, it is ensured that the removal efficiency of nitrogen oxides.
Accompanying drawing explanation
Fig. 1 is the structural representation of combined jet ammonia pipe grid device of the present invention；
Wherein, 1-fixed support, 2-blast tube, 3-playpipe, 4-connecting tube.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Embodiment, is further elaborated to the present invention.Should be appreciated that described herein being embodied as
Example only in order to explain the present invention, is not intended to limit the present invention.
A kind of combination type ammonia-spraying grid device, it is arranged in flue, including several ammonia-spraying grid unit,
Each ammonia-spraying grid unit includes:
Several playpipes 3, it connects ammonia sky mixed gas passage respectively, several playpipes 3 described all in
L-type, and it parallel longitudinal is crisscross arranged；
Several blast tubes 2, its horizontally-parallel setting, it is perpendicular to the flow direction of flue gas, each blast tube 2
On be equipped with several nozzles 6, be provided with connecting tube 4, described connecting tube between two adjacent blast tubes 2
4 are perpendicular to described blast tube 2 is arranged, and described playpipe 3 is connected by connecting tube 4 with blast tube 2；
Several fixed supports 1, it is longitudinally arranged along flue, and is perpendicular to described blast tube 2, described spray
Penetrate pipe 3 and blast tube 2 is each attached on described fixed support 1.
Nozzle opening on described blast tube 2 is towards the airintake direction of flue gas, i.e. from the ammonia of nozzle ejection
Move with the nitrogen oxide containing gas counter current flow in flue, so that ammonia can be the most mixed with nitrogen oxide containing gas
Close.Or the nozzle on described blast tube 2 is Bidirectional nozzle.Nozzle on each blast tube 2 is evenly arranged,
Ammonia uniformly sprays, and the nozzle interlaced arrangement or positioned opposite on adjacent two blast tubes 2, makes ammonia
It is sufficiently mixed with nitrogen oxides, thus improves the utilization rate of ammonia and the removal efficiency of nitrogen oxides, and energy
Prevent the escape of ammonia.
It is equipped with Hand-operated butterfly valve and effusion meter on each playpipe 3.
Operation principle:
Ammonia sky gaseous mixture flows into playpipe 3 from ammonia sky mixed gas passage, branches to each spray by connecting tube 4
In mouth pipe 2, and final ejection from nozzle.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for this
For the technical staff in field, the present invention can have various modifications and variations.All spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement etc. made, should be included in the protection of the present invention
Within the scope of.
Claims (8)
1. a combination type ammonia-spraying grid device, it is arranged in flue, sprays including several
Ammonia grill unit, it is characterised in that each ammonia-spraying grid unit includes:
Several playpipes (3), it connects ammonia sky mixed gas passage, several sprays described respectively
Penetrate pipe (3) the most L-shaped, and it parallel longitudinal is crisscross arranged；
Several blast tubes (2), its horizontally-parallel setting, each blast tube (2) is upper all
It is provided with several nozzles (6), between two adjacent blast tubes (2), is provided with connecting tube (4),
Described connecting tube (4) be perpendicular to described blast tube (2) arrange, described playpipe (3) with
Blast tube (2) is connected by connecting tube (4)；
Several fixed supports (1), it is longitudinally arranged along flue, and is perpendicular to described blast tube
(2), described playpipe (3) and blast tube (2) are each attached to described fixed support (1)
On.
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Nozzle opening on described blast tube (2) is towards the airintake direction of flue gas.
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Nozzle on described blast tube (2) is Bidirectional nozzle.
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Nozzle on each blast tube (2) is evenly arranged.
Combination type ammonia-spraying grid device the most according to claim 4, it is characterised in that
Nozzle interlaced arrangement or positioned opposite on adjacent two blast tubes (2).
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Each playpipe is equipped with Hand-operated butterfly valve on (3).
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Each playpipe is equipped with effusion meter on (3).
Combination type ammonia-spraying grid device the most according to claim 1, it is characterised in that
Described blast tube (2) is perpendicular to the flow direction of flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539565.6A CN106000053A (en) | 2016-07-08 | 2016-07-08 | Combined ammonia injection grid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610539565.6A CN106000053A (en) | 2016-07-08 | 2016-07-08 | Combined ammonia injection grid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106000053A true CN106000053A (en) | 2016-10-12 |
Family
ID=57109934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610539565.6A Pending CN106000053A (en) | 2016-07-08 | 2016-07-08 | Combined ammonia injection grid device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106000053A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056885A (en) * | 2019-04-27 | 2019-07-26 | 宁波世茂能源股份有限公司 | A kind of efficient burning boiler system |
| CN113578049A (en) * | 2021-06-30 | 2021-11-02 | 成都易态科技有限公司 | Dedusting and denitration system and dedusting and denitration method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010046579A (en) * | 2008-08-20 | 2010-03-04 | Babcock Hitachi Kk | Flue gas denitrizer |
| KR20120026755A (en) * | 2010-09-10 | 2012-03-20 | 한국전력공사 | Device and method comprising grid units for flue gas denitrogenization |
| CN202860405U (en) * | 2012-07-25 | 2013-04-10 | 浙江海亮环境材料有限公司 | Flue gas denitration device capable of uniformly mixing guiding flow |
| CN203108438U (en) * | 2012-11-01 | 2013-08-07 | 中国大唐集团环境技术有限公司 | Novel ammonia-air mixture spraying grating |
| CN104785103A (en) * | 2015-03-30 | 2015-07-22 | 北京工业大学 | Spraying ammonia mixing system device for SCR flue gas denitrification project |
| CN105233686A (en) * | 2015-07-30 | 2016-01-13 | 北京哈泰克工程技术有限公司 | Matrix type ammonia spraying grille with mixing devices |
| CN205730849U (en) * | 2016-07-08 | 2016-11-30 | 大唐环境产业集团股份有限公司 | A kind of combination type ammonia-spraying grid device |
-
2016
- 2016-07-08 CN CN201610539565.6A patent/CN106000053A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010046579A (en) * | 2008-08-20 | 2010-03-04 | Babcock Hitachi Kk | Flue gas denitrizer |
| KR20120026755A (en) * | 2010-09-10 | 2012-03-20 | 한국전력공사 | Device and method comprising grid units for flue gas denitrogenization |
| CN202860405U (en) * | 2012-07-25 | 2013-04-10 | 浙江海亮环境材料有限公司 | Flue gas denitration device capable of uniformly mixing guiding flow |
| CN203108438U (en) * | 2012-11-01 | 2013-08-07 | 中国大唐集团环境技术有限公司 | Novel ammonia-air mixture spraying grating |
| CN104785103A (en) * | 2015-03-30 | 2015-07-22 | 北京工业大学 | Spraying ammonia mixing system device for SCR flue gas denitrification project |
| CN105233686A (en) * | 2015-07-30 | 2016-01-13 | 北京哈泰克工程技术有限公司 | Matrix type ammonia spraying grille with mixing devices |
| CN205730849U (en) * | 2016-07-08 | 2016-11-30 | 大唐环境产业集团股份有限公司 | A kind of combination type ammonia-spraying grid device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056885A (en) * | 2019-04-27 | 2019-07-26 | 宁波世茂能源股份有限公司 | A kind of efficient burning boiler system |
| CN113578049A (en) * | 2021-06-30 | 2021-11-02 | 成都易态科技有限公司 | Dedusting and denitration system and dedusting and denitration method |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yuxin Inventor after: Cao Dong Inventor after: Yang Xiujie Inventor after: Wei Tianyao Inventor after: Yang Chen Inventor after: Cao Yu Inventor after: Gao Fei Inventor after: Wang Changqing Inventor after: Jiang Chengyu Inventor after: Xia Shuang Inventor after: Li Yehong Inventor after: Liu Chang Inventor after: Zhao Yuntao Inventor after: Li Chunyu Inventor before: Liu Yuxin Inventor before: Gao Fei Inventor before: Wang Changqing Inventor before: Zhao Yuntao Inventor before: Lu Shengkuan Inventor before: Song Zhiqiang Inventor before: Cao Dong |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |