CN105413458B - Membrane panel smoking mouth device and mixed flue gas method - Google Patents
Membrane panel smoking mouth device and mixed flue gas method Download PDFInfo
- Publication number
- CN105413458B CN105413458B CN201510984112.XA CN201510984112A CN105413458B CN 105413458 B CN105413458 B CN 105413458B CN 201510984112 A CN201510984112 A CN 201510984112A CN 105413458 B CN105413458 B CN 105413458B
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- flue gas
- membrane panel
- flue
- smoking mouth
- described membrane
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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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A kind of membrane panel smoking mouth device and mixed flue gas method.With the development of China's power industry, NOXDischarge capacity it is growing day by day, for reduce NOXDischarge capacity; power plant installs out of stock device additional and flue gas is handled one after another; wherein SCR denitration technology obtains power industry great attention and extensive use; domestic coal unit is in underload; the inlet flue gas temperature of SCR device is often less than the optimal reaction temperature of SCR catalyst; well-defined reaction temp even can be less than, cause device denitration effect undesirable, flue gas still difficulty after device is out of stock reaches discharge standard.The inventive method includes：Membrane panel（1）, smoking mouth is provided with described membrane panel（2）, wear strip is housed on described membrane panel（3）, sealing block is housed on described membrane panel（4）, equipped with the sealing plate docked with flue on described membrane panel（5）Coordinate.The present invention is applied to extract flue gas at rear pass membrane panel.
Description
Technical field：
The present invention relates to a kind of membrane panel smoking mouth device and mixed flue gas method.
Background technology：
With the development of China's power industry, NOXDischarge capacity it is growing day by day, the NO in airXIt is not only photochemical fog
The main source of formation, and it is in all parts of the country there is acid rain primarily form reason.According to China's power planning, it is contemplated that 2015-
The year two thousand twenty, NOXDischarge capacity will exceed SO2Discharge capacity, turn into the first big acid contaminant of China.Therefore, country is forced by regulation
Administer to property the NO of thermal power plantXDischarge capacity.In order to reduce NOXDischarge capacity, power plant install additional one after another out of stock device to flue gas at
Reason, wherein SCR denitration technology are high with its removal efficiency, adapt to current environmental requirement and obtain power industry and pay much attention to and extensively
Application, substantial amounts of thermal power plant starts to use selective denitrification device（SCR）, the reaction temperature of catalyst is general in SCR device
For 320 ~ 420 DEG C, for out of stock device portal cigarette temperature when between 350 ~ 380 degrees Celsius, SCR reaction efficiencies are in highest level, state
For Internal-combustion engine using coal group in underload, the inlet flue gas temperature of SCR device is often less than the optimal reaction temperature of SCR catalyst, sometimes
Well-defined reaction temp even can be less than, cause device denitration effect undesirable, still difficulty reaches discharge to flue gas after device is out of stock
Standard.
The content of the invention：
It is an object of the invention to provide a kind of membrane panel smoking mouth device and mixed flue gas method.
Above-mentioned purpose is realized by following technical scheme：
A kind of membrane panel smoking mouth device, its composition include：Membrane panel, set on described membrane panel
There is smoking mouth, wear strip is housed on described membrane panel, sealing block, described membrane type are housed on described membrane panel
Equipped with the sealing plate docked with flue on wall tube panel.
The mixed flue gas method of described membrane panel smoking mouth device, the present apparatus can be by the high temperature cigarettes in stove when using
Gas is tightly connected by the present apparatus to extraction on the outside of stove, the present apparatus with bypass flue, and flue gas passes through gas bypass and SCR inlet
Low-temperature flue gas mixing so that mixed flue-gas temperature can reach the flue-gas temperature needed for denitrification apparatus bringing normally into operation, from
And the denitration reaction into the flue gas of denitrification apparatus can be smoothed out, by the NO in flue gasX Slough, solve for full mistake
Journey comes into operation the problem of flue gas need to be extracted at rear pass membrane panel when equipment for denitrifying flue gas installs economizer bypass additional.
Beneficial effects of the present invention：
1. the present invention directly cuts fin perforate on the membrane panel of rear pass and forms smoking mouth, required for reaching
Flue gas circulation area；Tapping fin end open semicircle hole, prevents stress concentration；Opening area meets fume side arrangement abrasionproof dress
Put, with anti-wear；Outside is disposed with the flue Butt sealing plate being connected with bypass flue, by above measure, solves from rear cigarette
The problem of extraction flue gas and membrane panel dock with flue at road membrane panel.
The present invention is advantageous to the implementation of economizer bypass flue scheme, ensures that denitrification apparatus can be thrown under unit full load
With；Change small, be easy to site operation；If improvement project, the transformation cycle is short, and fund input is few, and do not destroy unit it is original by
Press element.
Brief description of the drawings：
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the left view of accompanying drawing 1.
Accompanying drawing 3 is the top view of accompanying drawing 1.
Accompanying drawing 4 is the fin end machining sketch chart at the smoking mouth of the present invention.
Embodiment：
Embodiment 1：
A kind of membrane panel smoking mouth device, its composition include：Membrane panel 1, set on described membrane panel
Smoking mouth 2 is equipped with, wear strip 3 is housed on described membrane panel, sealing block 4 is housed on described membrane panel, it is described
Membrane panel on equipped with the sealing plate 5 that is docked with flue.
Embodiment：
A kind of mixed flue gas method of membrane panel smoking mouth device using described in embodiment 1, when the present apparatus uses
High-temperature flue gas in stove can be tightly connected by the present apparatus to extraction on the outside of stove, the present apparatus with bypass flue, flue gas passes through cigarette
Gas bypass mixes with the low-temperature flue gas of SCR inlet so that mixed flue-gas temperature can reach denitrification apparatus bringing normally into operation
Required flue-gas temperature, so as to which the denitration reaction for the flue gas for entering denitrification apparatus can be smoothed out, by the NO in flue gasX It is de-
Go, solving need to extract in order to which overall process comes into operation when equipment for denitrifying flue gas installs economizer bypass additional at rear pass membrane panel
The problem of flue gas.
Claims (1)
1. a kind of membrane panel smoking mouth device, its composition includes：Membrane panel, it is characterized in that：Described membrane wall pipe
Smoking mouth is provided with screen, wear strip is housed on described membrane panel, sealing block, institute are housed on described membrane panel
Equipped with the sealing plate docked with flue on the membrane panel stated；
The mixed flue gas method of described membrane panel smoking mouth device, the high-temperature flue gas in stove can be passed through when the present apparatus uses
Cross the present apparatus to extract out on the outside of stove, the present apparatus is tightly connected with bypass flue, and flue gas passes through the low of gas bypass and SCR inlet
Warm flue gas mixing so that mixed flue-gas temperature can reach the flue-gas temperature needed for denitrification apparatus bringing normally into operation, so as to allow
Denitration reaction into the flue gas of denitrification apparatus can be smoothed out, by the NO in flue gasXSlough, solve in order to which overall process is thrown
The problem of flue gas need to be extracted at rear pass membrane panel when installing economizer bypass additional with equipment for denitrifying flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984112.XA CN105413458B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth device and mixed flue gas method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984112.XA CN105413458B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth device and mixed flue gas method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105413458A CN105413458A (en) | 2016-03-23 |
| CN105413458B true CN105413458B (en) | 2018-01-05 |
Family
ID=55492264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510984112.XA Active CN105413458B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth device and mixed flue gas method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413458B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589001A (en) * | 2012-03-15 | 2012-07-18 | 浙江大学 | Analysis method for high-temperature corrosion inclination of water-cooled wall of pulverized coal boiler based on flue gas components |
| CN203731400U (en) * | 2014-03-10 | 2014-07-23 | 哈尔滨明远电力科技咨询有限公司 | Abrasion-proof wind device for preventing abrasion of pipe wall of circulating fluidized bed boiler |
| CN204240341U (en) * | 2014-09-13 | 2015-04-01 | 贾征琦 | Cycle Fluid Bed Boiler Antiwear step |
| CN205340572U (en) * | 2015-12-24 | 2016-06-29 | 哈尔滨锅炉厂有限责任公司 | A diaphragm type wall tube panel smoking mouthful device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2323980A1 (en) * | 2000-10-19 | 2002-04-19 | Rosaire Tremblay | Device for filtering air polluted with gases and odours |
-
2015
- 2015-12-24 CN CN201510984112.XA patent/CN105413458B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589001A (en) * | 2012-03-15 | 2012-07-18 | 浙江大学 | Analysis method for high-temperature corrosion inclination of water-cooled wall of pulverized coal boiler based on flue gas components |
| CN203731400U (en) * | 2014-03-10 | 2014-07-23 | 哈尔滨明远电力科技咨询有限公司 | Abrasion-proof wind device for preventing abrasion of pipe wall of circulating fluidized bed boiler |
| CN204240341U (en) * | 2014-09-13 | 2015-04-01 | 贾征琦 | Cycle Fluid Bed Boiler Antiwear step |
| CN205340572U (en) * | 2015-12-24 | 2016-06-29 | 哈尔滨锅炉厂有限责任公司 | A diaphragm type wall tube panel smoking mouthful device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105413458A (en) | 2016-03-23 |
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