CN105402746B - Membrane panel smoking mouth swan neck system and mixed flue gas method - Google Patents
Membrane panel smoking mouth swan neck system and mixed flue gas method Download PDFInfo
- Publication number
- CN105402746B CN105402746B CN201510984095.XA CN201510984095A CN105402746B CN 105402746 B CN105402746 B CN 105402746B CN 201510984095 A CN201510984095 A CN 201510984095A CN 105402746 B CN105402746 B CN 105402746B
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- CN
- China
- Prior art keywords
- membrane panel
- flue gas
- rear pass
- pass membrane
- bend pipe
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J11/00—Devices for conducting smoke or fumes, e.g. flues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J13/00—Fittings for chimneys or flues
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
A kind of membrane panel smoking mouth swan neck system and mixed flue gas method.NOXDischarge capacity it is growing day by day, NOXPollution can form acid rain, photochemical fog, destroy ecological environment, it influences the concern and attention that have increasingly caused people, at this stage some old power plant NOXDischarge capacity it is of a relatively high, do not meet national legislation NOXThe requirement of discharge capacity install out of stock device additional, it is necessary to carry out transformation, to reduce NOXDischarge capacity.The method of the present invention includes：Rear pass membrane panel（1）, rear pass membrane panel middle part is every a pitch equipped with the bend pipe to outside stove（2）, bend pipe formation smoking mouth（3）, rear pass membrane panel stove outside is equipped with sealing bent plate（4）, rear pass membrane panel stove outside is equipped with sealing plate（5）, the bend pipe on rear pass membrane panel is equipped with wear strip（6）.The present invention is applied to solve the problems, such as that when equipment for denitrifying flue gas installs economizer bypass additional flue gas need to be extracted at rear pass membrane panel.
Description
Technical field：
The present invention relates to a kind of membrane panel smoking mouth swan neck system and mixed flue gas method.
Background technology：
According to China's power planning, it is contemplated that 2015-2020, NOXDischarge capacity will exceed SO2Discharge capacity, becomes China first
Big acid contaminant, therefore, country forcibly administer the NO of thermal power plant by regulationXDischarge capacity, with China's power industry
Development, NOXDischarge capacity it is growing day by day, it is well known that NOXPollution can form acid rain, photochemical fog, destroy ecological environment,
It influences the concern and attention that have increasingly caused people, at this stage some old power plant NOXDischarge capacity it is of a relatively high, do not meet
National legislation NOXThe requirement of discharge capacity install out of stock device additional, it is necessary to carry out transformation, to reduce NOXDischarge capacity, now use
Flue-gas temperature at economizer bypass does not reach the temperature needed for out of stock device, this allow for denitration reaction carry out it is insufficient, take off
Nitre effect is very undesirable.
The content of the invention：
The object of the present invention is to provide a kind of membrane panel smoking mouth swan neck system and mixed flue gas method.
Above-mentioned purpose is realized by following technical scheme：
A kind of membrane panel smoking mouth swan neck system, its composition include：Rear pass membrane panel, the rear pass
In the middle part of membrane panel smoking mouth, the rear pass are formed equipped with the bend pipe to outside stove, the bend pipe every a pitch
Equipped with sealing bent plate on the outside of membrane panel stove, rear pass membrane panel stove outside is equipped with sealing plate, after described
Bend pipe on flue membrane panel is equipped with wear strip.
The mixed flue gas method of the membrane panel smoking mouth swan neck system, the present apparatus pass through membrane wall pipe when using
Bend pipe on screen to outside stove extracts high-temperature flue gas out, is mixed with the low-temperature flue gas at economizer bypass so that mixed flue gas
Temperature can reach the flue-gas temperature needed for denitration, thus allow into the flue gas of denitrification apparatus denitration reaction can smoothly into
OK, by the NO in flue gasX Slough, solving need to be at rear pass membrane panel when equipment for denitrifying flue gas installation economizer bypasses
The problem of extracting flue gas.
Beneficial effects of the present invention：
1. the present invention is before being initiated, the flue-gas temperature at economizer bypass did not reached the temperature needed for out of stock device originally
Degree, at this moment just needs the flue gas of the extracting high-temperature at the higher rear pass of flue-gas temperature, is mixed with flue gas herein and reach out of stock institute
The flue-gas temperature needed, when present apparatus use, are extracted out high-temperature flue gas by the bend pipe on membrane panel to outside stove, with economizer
At bypass low-temperature flue gas mixing so that mixed flue-gas temperature can reach the flue-gas temperature needed for denitration, thus allow into
Entering the denitration reaction of the flue gas of denitrification apparatus can be smoothed out, by the NO in flue gasX Slough, solve equipment for denitrifying flue gas and add
The problem of flue gas need to be extracted at rear pass membrane panel during dress economizer bypass.
The change of structure of the present invention is small, easy to site operation；A problem of mouthful tube panel is worn by flue gas of smoking at the same time also obtains
Good solution.
The present invention be in the relevant position of rear pass membrane panel every pitch pipe bend pipe to outside stove so that
Smoking mouth is formed, to solve the problems, such as to extract flue gas at rear pass membrane panel.
Brief description of the drawings：
Attached drawing 1 is the structure diagram of the present invention.
Attached drawing 2 is the top view of attached drawing 1.
Attached drawing 3 is the structure diagram that the present invention one saves pipe.
Embodiment：
Embodiment 1：
Present invention composition includes：Rear pass membrane panel（1）, the rear pass membrane panel middle part is every one
Pitch is equipped with the bend pipe to outside stove（2）, the bend pipe forms smoking mouth（3）, on the outside of the rear pass membrane panel stove
Equipped with sealing bent plate（4）, the rear pass membrane panel stove outside is equipped with sealing plate（5）, the rear pass membrane wall
Bend pipe on tube panel is equipped with wear strip（6）.
Embodiment 2：
A kind of mixed flue gas method of membrane panel smoking mouth swan neck system using described in embodiment 1, the present apparatus make
Used time is extracted out high-temperature flue gas by the bend pipe on membrane panel to outside stove, is mixed with the low-temperature flue gas at economizer bypass,
Mixed flue-gas temperature is enabled to reach the flue-gas temperature needed for denitration, so as to allow denitration into the flue gas of denitrification apparatus
Reaction can be smoothed out, by the NO in flue gasX Slough, solving need to be from rear cigarette when equipment for denitrifying flue gas installation economizer bypasses
The problem of flue gas is extracted at road membrane panel.
Claims (1)
1. a kind of membrane panel smoking mouth swan neck system, its composition includes：Rear pass membrane panel, it is characterized in that：Institute
The rear pass membrane panel stated, forms smoking mouth at pitch pipe bend pipe to outside stove, the bend pipe position,
Equipped with sealing bent plate on the outside of the rear pass membrane panel stove, rear pass membrane panel stove outside is equipped with sealing
Plate, the bend pipe on the rear pass membrane panel are equipped with wear strip；
The mixed flue gas method of the membrane panel smoking mouth swan neck system is as described below：Pass through membrane panel during use
On bend pipe to outside stove high-temperature flue gas is extracted out, mixed with the low-temperature flue gas at economizer bypass so that mixed flue gas temperature
Degree can reach the flue-gas temperature needed for denitration, so that the denitration reaction into the flue gas of denitrification apparatus can be smoothed out,
By the NO in flue gasXSlough, solving when equipment for denitrifying flue gas installs economizer bypass additional need to take out at rear pass membrane panel
The problem of taking flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984095.XA CN105402746B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth swan neck system and mixed flue gas method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984095.XA CN105402746B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth swan neck system and mixed flue gas method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105402746A CN105402746A (en) | 2016-03-16 |
| CN105402746B true CN105402746B (en) | 2018-04-27 |
Family
ID=55468400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510984095.XA Active CN105402746B (en) | 2015-12-24 | 2015-12-24 | Membrane panel smoking mouth swan neck system and mixed flue gas method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402746B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202452688U (en) * | 2012-02-06 | 2012-09-26 | 广州迪森家用锅炉制造有限公司 | Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater |
| CN204063081U (en) * | 2014-04-15 | 2014-12-31 | 国家电网公司 | The flue structure that a kind of SCR flue gas denitrification system inlet flue gas temperature is adjustable |
| CN104759206A (en) * | 2015-03-31 | 2015-07-08 | 山东鑫源环保工程技术有限公司 | SCR flue gas denitrification device provided with temperature-raising flue gas mixer |
| CN204710105U (en) * | 2015-02-04 | 2015-10-21 | 刘炎军 | A kind of full load equipment for denitrifying flue gas of Industrial Boiler |
| CN205351359U (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 swan neck system |
-
2015
- 2015-12-24 CN CN201510984095.XA patent/CN105402746B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202452688U (en) * | 2012-02-06 | 2012-09-26 | 广州迪森家用锅炉制造有限公司 | Smoke discharge tube for gas-fired heating and hot water boiler or gas water heater |
| CN204063081U (en) * | 2014-04-15 | 2014-12-31 | 国家电网公司 | The flue structure that a kind of SCR flue gas denitrification system inlet flue gas temperature is adjustable |
| CN204710105U (en) * | 2015-02-04 | 2015-10-21 | 刘炎军 | A kind of full load equipment for denitrifying flue gas of Industrial Boiler |
| CN104759206A (en) * | 2015-03-31 | 2015-07-08 | 山东鑫源环保工程技术有限公司 | SCR flue gas denitrification device provided with temperature-raising flue gas mixer |
| CN205351359U (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 swan neck system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105402746A (en) | 2016-03-16 |
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