CN106799119A - Structural layout of ammonia gas uniform distribution device for flue denitration - Google Patents
Structural layout of ammonia gas uniform distribution device for flue denitration Download PDFInfo
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- CN106799119A CN106799119A CN201610997886.0A CN201610997886A CN106799119A CN 106799119 A CN106799119 A CN 106799119A CN 201610997886 A CN201610997886 A CN 201610997886A CN 106799119 A CN106799119 A CN 106799119A
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- ammonia
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- 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
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- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- Environmental & Geological Engineering (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a structural layout of an ammonia gas uniform distribution device for flue denitration, which comprises an ammonia gas nozzle, an ammonia gas auxiliary nozzle, an ammonia gas spray pipe, a mounting sleeve, an ammonia gas spraying branch pipe, an anti-blocking filter, a manual regulating valve, an ammonia gas spraying main pipe, an ammonia gas pressure instrument and an ammonia gas temperature instrument, and is characterized in that: the invention adopts a fixed modular layout and adopts a combined structure of an ammonia nozzle, an ammonia auxiliary nozzle, an ammonia spray pipe, an installation sleeve, an ammonia spray branch pipe, an ammonia spray main pipe, a manual regulating valve, an anti-blocking filter and the like, thereby realizing the uniformity of ammonia spray in a flue, enlarging the coverage of ammonia spray and reducing the blocking probability of the nozzle, thereby improving the sufficiency and denitration efficiency of flue gas denitration, reducing the escape rate of ammonia, being beneficial to environmental protection, having uniform ammonia spray, wide coverage, no blockage of a spray head, simple structure, long service life, controllable and adjustable gas flow, and being convenient to disassemble, overhaul, maintain and install integrally and parts. The defects of the prior art are overcome.
Description
Technical field
The present invention relates to a kind of chemical process technical field of flue denitration, more particularly to a kind of ammonia for flue denitration
The topology layout of gas uniform distribution device.
Background technology
The denitration ammonia distribution apparatus species of prior art is various, but due to the characteristic of denitration reaction, ammonia distribution dress
Put nozzle easily to block, cause flue gas to mix uneven, cause denitration efficiency to reduce.
The various ammonias of prior art uniform arrangement modes, solving some nozzle choking problems to a certain degree,
Flue gas mixed effect is expanded, but due to needing to do substantial amounts of simulation preparation before arrangement, the cycle is more long, and cannot be real
Avoid the generation of stopping state.Plus the improper of arrangement mode, denitration efficiency is had a strong impact on, ammonia escape has been increased, to ring
Border has than more serious secondary pollution.
The present invention is using stuck-moduleization layout, ammonia nozzle, ammonia pilot jet, ammonia jet pipe, installation sleeve pipe, spray ammonia
The combining structure of branch pipe, spray ammonia main pipe, manual modulation valve door, anti-blockage filter etc., realizes the uniformity of spray ammonia in flue, expands
The coverage rate of ammonia is sprayed, reduces nozzle blockage probability, so as to improve the adequacy and denitration efficiency of denitrating flue gas, reduce the escaping of ammonia
Rate, beneficial to environmental protection, spray ammonia is uniform, broad covered area, shower nozzle will not be blocked, simple structure, long service life, gas flow can
Control is adjustable, entirety and part dismounting repair and maintenance, easy for installation.Overcome the deficiencies in the prior art.
The content of the invention
It is an object of the invention to provide a kind of topology layout of the ammonia uniform distribution device for flue denitration, rationally
Solve the spray nozzle clogging of denitration ammonia distribution apparatus, ammonia skewness, denitration efficiency reduction, the ammonia of prior art
The big problem of escape amount.
The present invention is adopted the following technical scheme that：
A kind of topology layout of ammonia uniform distribution device for flue denitration, including the auxiliary spray of ammonia nozzle, ammonia
Mouth, ammonia jet pipe, install sleeve pipe, spray ammonia branch pipe, anti-blockage filter, manual modulation valve door, spray ammonia main pipe, ammonia pressure instrument,
Ammonia thermometric instrument, it is characterised in that：
The topology layout of the ammonia uniform distribution device using stuck-moduleization be laid out, it is described spray ammonia main pipe along flue outside
Wall cloth sets, and the inlet end of the spray ammonia main pipe is provided with ammonia pressure instrument and ammonia thermometric instrument, to the pipe of the spray ammonia main pipe
The gentle pressure of temperature of interior ammonia is monitored, and the spray ammonia main pipe is provided with some equidistant spray ammonia branch pipes, the spray ammonia branch pipe
Installation sleeve pipe, manual modulation valve door and anti-blockage filter are provided with, described spray ammonia branch pipe one end is laid in the spray ammonia main pipe,
The other end is laid in flue the inwall near the flue, and the manual modulation valve door is laid near the spray ammonia main pipe
One end, the installation sleeve pipe is laid in the spray ammonia branch pipe and stretches into the flue near the termination of the inwall of the flue, institute
State installation sleeve pipe linking and be provided with ammonia jet pipe, it is equidistant on the ammonia jet pipe outer wall to be provided with ammonia nozzle, near the ammonia
The ammonia jet pipe outer wall of nozzle is provided with ammonia pilot jet, constitutes a kind of ammonia for flue denitration and uniformly divides
The topology layout of cloth apparatus.
Further, the laying mode of the ammonia nozzle is：The ammonia nozzle is equidistant, radial direction, straight line are laid in
On the same ammonia jet pipe outer wall, the ammonia nozzle being laid with the different ammonia jet pipe outer walls is same flat
On face.
Further, the laying mode of the ammonia pilot jet is：On adjacent two ammonia jet pipe outer walls, one
It is laid in using the ammonia pilot jet handover and is sprayed with the close described ammonia on the same circumference where the ammonia nozzle
Both sides before and after mouth, another use ammonia pilot jet handover is laid on the circumference on the left of the ammonia nozzle
Front left side and left rear side, the ammonia pilot jet is at grade.
Further, the ammonia nozzle and ammonia pilot jet structure are the dust-proof hole of flow-disturbing that head is threaded connection
Shape filter screen, percent opening more than 70%, stainless steel.
Further, the anti-blockage filter is detachable changeable type cylindrical filtrating screen type structure, stainless steel, cloth
It is located on the spray ammonia branch pipe at the installation sleeve pipe.
Further, the installation sleeve pipe is laid on the spray ammonia branch pipe stretched into flue, for the spray ammonia branch
The fast sealing docking of pipe and the ammonia jet pipe and fast assembling-disassembling repair and maintenance, reduce the escaping of ammonia rate, prevent to follow-up equipment
Corrosion.
The method have the benefit that:
The invention discloses a kind of topology layout of the ammonia uniform distribution device for flue denitration, reasonably solve
The spray nozzle clogging of the denitration ammonia distribution apparatus of prior art, ammonia skewness, denitration efficiency reduction, ammonia escape amount are big
Problem.The present invention is using stuck-moduleization layout, ammonia nozzle, ammonia pilot jet, ammonia jet pipe, installation sleeve pipe, spray ammonia
The combining structure of branch pipe, spray ammonia main pipe, manual modulation valve door, anti-blockage filter etc., realizes the uniformity of spray ammonia in flue, expands
The coverage rate of ammonia is sprayed, reduces nozzle blockage probability, so as to improve the adequacy and denitration efficiency of denitrating flue gas, reduce the escaping of ammonia
Rate, beneficial to environmental protection, spray ammonia is uniform, broad covered area, shower nozzle will not be blocked, simple structure, long service life, gas flow can
Control is adjustable, entirety and part dismounting repair and maintenance, easy for installation.Overcome the deficiencies in the prior art.
Brief description of the drawings
Fig. 1 is integral layout structural representation of the present invention.
Shown in figure：1- ammonias nozzle, 2- ammonias pilot jet, 3- ammonias jet pipe, 4- install sleeve pipe, 5- sprays ammonia branch pipe,
6- anti-blockage filters, 7- manual modulation valves door, 8- spray ammonia main pipe, 9- ammonia pressures instrument, 10- ammonia thermometric instruments.
Specific embodiment
By the following description to embodiment, will more contribute to the public understanding present invention, but can't be by Shen
Given specific embodiment of asking someone is considered as the limitation to technical solution of the present invention, any definition to part or technical characteristic
Be changed and/or make form to overall structure and immaterial conversion is regarded as what technical scheme was limited
Protection domain.
Embodiment:
A kind of topology layout of ammonia uniform distribution device for flue denitration as shown in Figure 1, including ammonia nozzle
1st, ammonia pilot jet 2, ammonia jet pipe 3, installation sleeve pipe 4, spray ammonia branch pipe 5, anti-blockage filter 6, manual modulation valve door 7, spray ammonia
Main pipe 8, ammonia pressure instrument 9, ammonia thermometric instrument 10.
Spray ammonia main pipe 8 is laid along flue outer wall first, ammonia pressure instrument 9, ammonia temperature is laid in the spray ammonia main pipe 8
Degree instrument 10 and some spray ammonia branch pipes 5.
Then laid on the spray ammonia branch pipe 5 and sleeve pipe 4, manual modulation valve door 7, anti-blockage filter 6 is installed.Again described
Sleeve pipe 4 is installed and lays ammonia jet pipe 3.
Last that ammonia nozzle 1 and ammonia pilot jet 2 are laid on the ammonia jet pipe 3, the ammonia nozzle 1 is equidistant
From, radial direction, straight line be laid on the same outer wall of the ammonia jet pipe 3, laid on the outer wall of the different ammonia jet pipe 3
The ammonia nozzle 1 having is at grade.The laying mode of the ammonia pilot jet 2 is：Adjacent two ammonias
On the outer wall of jet pipe 3, a use handover of ammonia pilot jet 2 is laid in and the same circle where the ammonia nozzle 1
The front and rear both sides of the close described ammonia nozzle 1 on week, another use handover of ammonia pilot jet 2 is laid near institute
The front left side and left rear side on the circumference on the left of ammonia nozzle are stated, the ammonia pilot jet is at grade.Complete a kind of
For the implementation of the topology layout of the ammonia uniform distribution device of flue denitration.
Certainly, the present invention can also have other various embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those of ordinary skill in the art can make various corresponding changes and deformation according to the present invention, but these it is corresponding change and
Deformation should all belong to the protection domain of appended claims of the invention.
Claims (6)
1. a kind of topology layout of ammonia uniform distribution device for flue denitration, including ammonia nozzle, ammonia pilot jet,
Ammonia jet pipe, installation sleeve pipe, spray ammonia branch pipe, anti-blockage filter, manual modulation valve door, spray ammonia main pipe, ammonia pressure instrument, ammonia
Thermometric instrument, it is characterised in that：
The topology layout of the ammonia uniform distribution device is laid out using stuck-moduleization, and the spray ammonia main pipe is along the outer wall cloth of flue
If the inlet end of the spray ammonia main pipe is provided with ammonia pressure instrument and ammonia thermometric instrument, to ammonia in the pipe of the spray ammonia main pipe
The gentle pressure of temperature of gas is monitored, and the spray ammonia main pipe is provided with some equidistant spray ammonia branch pipes, is set on the spray ammonia branch pipe
There are installation sleeve pipe, manual modulation valve door and anti-blockage filter, described spray ammonia branch pipe one end is laid in the spray ammonia main pipe, another
End is laid in flue the inwall near the flue, and the manual modulation valve door is laid near the spray ammonia main pipe
End, the sleeve pipe of installing is laid in the termination that the spray ammonia branch pipe stretches into the inwall that the flue is close in the flue, described
Sleeve pipe linking is installed and is provided with ammonia jet pipe, it is equidistant on the ammonia jet pipe outer wall to be provided with ammonia nozzle, near ammonia spray
The ammonia jet pipe outer wall of mouth is provided with ammonia pilot jet, constitutes a kind of ammonia for flue denitration and is uniformly distributed
The topology layout of device.
2. a kind of topology layout of ammonia uniform distribution device for flue denitration according to claim 1, its feature exists
In：The laying mode of the ammonia nozzle is：The ammonia nozzle is equidistant, radial direction, straight line are laid in the same ammonia
On jet pipe outer wall, the ammonia nozzle being laid with the different ammonia jet pipe outer walls is at grade.
3. a kind of topology layout of ammonia uniform distribution device for flue denitration according to claim 1, its feature exists
In：The laying mode of the ammonia pilot jet is：On adjacent two ammonia jet pipe outer walls, a use ammonia is auxiliary
Help nozzle handover be laid in both sides before and after the close described ammonia nozzle on the same circumference where the ammonia nozzle, it is another
Root is laid in front left side and left rear side on the circumference on the left of the ammonia nozzle using the ammonia pilot jet handover,
The ammonia pilot jet is at grade.
4. a kind of topology layout of ammonia uniform distribution device for flue denitration according to claim 1, its feature exists
In：The ammonia nozzle and ammonia pilot jet structure are the dust-proof poroid filter screen of flow-disturbing that head is threaded connection, percent opening
More than 70%, stainless steel.
5. a kind of topology layout of ammonia uniform distribution device for flue denitration according to claim 1, its feature exists
In：The anti-blockage filter is detachable changeable type cylindrical filtrating screen type structure, and stainless steel is laid in the spray ammonia branch
On pipe at the installation sleeve pipe.
6. a kind of topology layout of ammonia uniform distribution device for flue denitration according to claim 1, its feature exists
In：The installation sleeve pipe is laid on the spray ammonia branch pipe stretched into flue, for the spray ammonia branch pipe and ammonia spray
The fast sealing docking of pipe and fast assembling-disassembling repair and maintenance, the corrosion for reduce the escaping of ammonia rate, preventing to follow-up equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997886.0A CN106799119B (en) | 2016-11-14 | 2016-11-14 | Structural layout method of ammonia gas uniform distribution device for flue denitration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997886.0A CN106799119B (en) | 2016-11-14 | 2016-11-14 | Structural layout method of ammonia gas uniform distribution device for flue denitration |
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| CN106799119A true CN106799119A (en) | 2017-06-06 |
| CN106799119B CN106799119B (en) | 2019-09-03 |
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| CN201610997886.0A Active CN106799119B (en) | 2016-11-14 | 2016-11-14 | Structural layout method of ammonia gas uniform distribution device for flue denitration |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224800A (en) * | 2018-09-30 | 2019-01-18 | 李晓龙 | A kind of method and apparatus of solid gas conversion denitration in the stove and its use equipment |
| CN112316716A (en) * | 2020-10-16 | 2021-02-05 | 杭州国泰环保科技股份有限公司 | Flue gas denitration system and operation method thereof |
| CN112742210A (en) * | 2020-08-24 | 2021-05-04 | 濮阳市濮耐功能材料有限公司 | Coke oven denitration pipe and preparation method thereof |
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| CN101450278A (en) * | 2008-12-22 | 2009-06-10 | 西安热工研究院有限公司 | Whole wing type current sharing and partition adjustable ammonia-gas spraying device |
| CN202606028U (en) * | 2012-02-09 | 2012-12-19 | 东南大学 | Air hoop type selective catalytic reduction denitration ammonia spraying and mixing device |
| CN103480254A (en) * | 2013-08-12 | 2014-01-01 | 北京博智伟德环保科技有限公司 | Anti-blocking ammonia spraying grid for SCR (Selective Catalytic Reduction) denitration system |
| CN104785093A (en) * | 2015-04-07 | 2015-07-22 | 中国华能集团清洁能源技术研究院有限公司 | Multi-nozzle type ammonia spraying grid device applicable to SNCR (selective non-catalytic reduction) |
| CN104941405A (en) * | 2015-06-09 | 2015-09-30 | 宁波连通设备制造有限公司 | Denitration device and denitration method thereof |
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2016
- 2016-11-14 CN CN201610997886.0A patent/CN106799119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450278A (en) * | 2008-12-22 | 2009-06-10 | 西安热工研究院有限公司 | Whole wing type current sharing and partition adjustable ammonia-gas spraying device |
| CN202606028U (en) * | 2012-02-09 | 2012-12-19 | 东南大学 | Air hoop type selective catalytic reduction denitration ammonia spraying and mixing device |
| CN103480254A (en) * | 2013-08-12 | 2014-01-01 | 北京博智伟德环保科技有限公司 | Anti-blocking ammonia spraying grid for SCR (Selective Catalytic Reduction) denitration system |
| CN104785093A (en) * | 2015-04-07 | 2015-07-22 | 中国华能集团清洁能源技术研究院有限公司 | Multi-nozzle type ammonia spraying grid device applicable to SNCR (selective non-catalytic reduction) |
| CN104941405A (en) * | 2015-06-09 | 2015-09-30 | 宁波连通设备制造有限公司 | Denitration device and denitration method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224800A (en) * | 2018-09-30 | 2019-01-18 | 李晓龙 | A kind of method and apparatus of solid gas conversion denitration in the stove and its use equipment |
| CN112742210A (en) * | 2020-08-24 | 2021-05-04 | 濮阳市濮耐功能材料有限公司 | Coke oven denitration pipe and preparation method thereof |
| CN112316716A (en) * | 2020-10-16 | 2021-02-05 | 杭州国泰环保科技股份有限公司 | Flue gas denitration system and operation method thereof |
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| Publication number | Publication date |
|---|---|
| CN106799119B (en) | 2019-09-03 |
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Effective date of registration: 20220506 Address after: No.40, Renmin South Road, Luoshe Town, Huishan District, Wuxi City, Jiangsu Province, 214100 Patentee after: Danaxi (Wuxi) Green Energy Technology Co.,Ltd. Address before: 214423 No. 18, Yunlun Road, Zhouzhuang Town, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGYIN TIANDE ENVIRONMRNTAL ENGINEERING CO.,LTD. |