CN107860014A - A kind of method of power plant sleeve-type chimney control corrosion rate leakage - Google Patents
A kind of method of power plant sleeve-type chimney control corrosion rate leakage Download PDFInfo
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- CN107860014A CN107860014A CN201710893386.7A CN201710893386A CN107860014A CN 107860014 A CN107860014 A CN 107860014A CN 201710893386 A CN201710893386 A CN 201710893386A CN 107860014 A CN107860014 A CN 107860014A
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- chimney
- pressure
- power plant
- 10kpa
- corrosion rate
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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
- F23J13/00—Fittings for chimneys or flues
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/28—Chimney stacks, e.g. free-standing, or similar ducts
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/10—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses by special construction of the frame members
Abstract
The invention belongs to chimney anticorrosion erosion leakage technology field, disclose a kind of method of power plant sleeve-type chimney control corrosion rate leakage, solve smoke spillage at the chimney internal cylinder corrosion hole of power plant sleeve-type chimney, further corrode chimney structure, corrosion hole deteriorates the problem of increasing.Chimney outer barrel is carried out encapsulation process by the present invention, it is ensured that the tightness of chimney outer barrel.Then using the pressure being passed through when the one way in which maintenance chimney mezzanine space pressure such as compressed air, nitrogen cylinder supply, air blower air-supply is more than fume emission in chimney internal cylinder, and pressure differential is more than 1KPa therebetween, prevent that flue gas leaks caused by chimney internal cylinder corrosion failure, the volatile alkaline substances such as ammonia, ring amine can also be passed through in interlayer simultaneously, to neutralize the sour gas of leakage position, continue to corrode the situation generation for deteriorating expansion so as to prevent from corroding hole, it is ensured that chimney overall structure long-term safety stable operation.
Description
Technical field
The invention belongs to chimney anticorrosion erosion leakage technology field, and in particular to a kind of power plant sleeve-type chimney control corrosion rate
The method of leakage.
Background technology
Increasingly strict with domestic and international environmental requirement, current domestic coal-burning power plant is the SO in control fume emission2Contain
Amount, it is most of all to employ Wet Flue Gas Desulfurization Technique, but flue gas reduces through wet-method desulfurized fume temperature, and humidity increases, in addition portion
Point power plant does not put into operation GGH, after wet flue gas enters chimney internal cylinder, passes through remaining sour gas from chimney with the state of pressure-fired
Body is easy to condense into the strong acid solution of corrosivity on chimney wall, and the material of chimney internal cylinder structure is caused to corrode.Generally
In order to avoid chimney wall corrodes, the fume side of chimney internal cylinder has all carried out preservative treatment, and conventional anti-corrosion method mainly has：
Apply anticorrosive paint, paste acid-resistant glass brick, steel stack wall laying titanium plate the methods of.Because chimney height is in 200m or so,
Anti-corrosion area is huge（More in 8000m2Left and right）, all there is different degrees of defect in anti_corrosion construction quality, therefore most chimneys at present
All occur different corrosion leakage situations in running after anti-corrosion, bring and have a strong impact on to power plant safety production.
Date of publication is on 2 25th, 2015, and publication No. is in CN104372980A Chinese patent, discloses a kind of anti-corrosion
The method of chimney lining structure and the chimney anticorrosion erosion of erosion, the chimney pass through in chimney laid inside vitreous foam brick lining
Mode makes chimney reach etch-proof effect, and anti-corrosion area is huge, and anticorrosive construction gigantic project, difficulty of construction is big, anticorrosive construction
Many defects be present in quality.
The day for announcing is on November 25th, 2015, and publication No. is in CN102269417B Chinese patent, is disclosed a kind of anti-
Corrode chimney and chimney anticorrosion etching method, the chimney by way of chimney laid inside frp lining reaching chimney
To etch-proof effect, its anti-corrosion area is huge, and anticorrosive construction gigantic project, difficulty of construction is big, and anti_corrosion construction quality exists all
More defects.
The content of the invention
The present invention causes corrosion location hole to prevent sleeve-type chimney inner cylinder sour corrosion flue gas caused by corrosion from leaking
Further corrosion failure of the fume leakage to chimney interlayer inner structure at hole area increase, corrosion hole, it is proposed that one kind generates electricity
The side of factory's sleeve-type chimney control corrosion rate leakage, this method mainly comprise the following steps：1）Chimney outer barrel is subjected to encapsulation process, it is ensured that cigarette
The tightness of chimney outer barrel；2）Then take be passed through compressed air, nitrogen cylinder supply, air blower air-supply etc. mode maintain chimney interlayer
The pressure when pressure in space is more than fume emission in chimney internal cylinder, prevent that flue gas leaks caused by internal cylinder chimney corrosion failure；
3）The volatile alkaline substances such as ammonia, ring amine are passed through in interlayer simultaneously, to neutralize the sour gas of leakage position.Using this
Method can reach control corrosion rate hole and continue the purpose that corrosion deteriorates expansion, it is ensured that the long-term safety and stability of chimney overall structure
Operation.
The technical solution adopted for the present invention to solve the technical problems is：A kind of power plant sleeve-type chimney control corrosion rate is let out
The method of leakage, chimney outer barrel is subjected to encapsulation process, it is ensured that the tightness of chimney outer barrel；Pressure is provided to chimney interlayer, makes cigarette
The pressure in chimney internal cylinder space when the pressure of chimney mezzanine space is more than fume emission, when the chimney mezzanine space is with fume emission
The pressure differential in chimney internal cylinder space be more than 1KPa；Meanwhile it is passed through volatile alkaline substance in chimney interlayer.When chimney interlayer
When the pressure in space is more than fume emission during the pressure in chimney internal cylinder space, the flue gas in chimney internal cylinder cannot be introduced into chimney folder
In layer, chimney can be controlled from further corrosion；The volatile alkaline substance alkalescence being passed through in chimney, can be neutralized in chimney
The acidic materials in flue gas at cylinder corrosion hole, prevent that corroding hole further deteriorates expansion.
The pressure of chimney mezzanine space is maintained by way of being passed through compressed air, nitrogen cylinder supply or air blower air-supply
In 10KPa.
Using the clay, elastic caoutchouc or plastics of UV resistant as filler, by chimney top, flue adapter and other
Gap is filled sealing between building structure, and carries out consolidation process to filler, it is ensured that chimney interlayer pressure is filled out in 10KPa
Thing is filled not loosen.When the pressure of chimney mezzanine space maintains 10KPa, chimney mezzanine space and cigarette during fume emission
The pressure differential in chimney inner cylinder space is more than 1KPa, can prevent the smoke spillage in chimney internal cylinder completely into chimney interlayer.
The observation vent window of chimney outer barrel is the plastic-steel structure glass material of tolerable 10KPa pressure.Plastic-steel structure glass
The observation vent window of material both can conveniently observe chimney inner case, can ensure to observe the intensity of vent window again.
Encapsulation process is carried out to the installation gap for observing vent window with the clay, elastic caoutchouc or plastics of UV resistant, really
Guarantor's chimney interlayer pressure is observed vent window in 10KPa and not loosened.
Pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height, and the pressure is surveyed
Measuring appratus is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor the pressure in chimney interlayer, to ensure
Pressure energy in chimney interlayer maintains 10KPa.
The chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, and the inleakage of the doorframe structure is less than
10 m3/min。
2-6 passage and a sliding door are provided with the doorframe structure, the passage is used to connect air supply pipe
Road, the sliding door pass in and out for inspection personnel.
A length of 50-500cm of the passage, a width of 50-500cm of the passage.
A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
The volatile alkaline substance is ammonia or ring amine.
Compared with prior art, its advantage is the present invention：By doing encapsulation process to chimney interlayer, chimney folder is maintained
Stressor layer is more than chimney internal cylinder pressure so that the flue gas in inner cylinder does not leak to chimney interlayer at corrosion hole；Simultaneously in cigarette
Volatile alkaline substance is passed through in chimney interlayer, to neutralize the acid ingredient in the flue gas at corrosion hole position.The present invention can be controlled
The further corrosion of tobacco curing chimney corrosion hole, which deteriorates, to be expanded, it is ensured that chimney overall structure long-term safety stable operation.
Embodiment
Technical scheme is described in further detail below by embodiment, following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment 1.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the clay of UV resistant
As filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney outer barrel
Tightness, and to filler carry out consolidation process, make filler can tolerate 10KPa pressure；To be passed through the side of compressed air
Formula, the pressure of chimney mezzanine space is set to maintain 10KPa, now, the chimney when pressure of chimney mezzanine space is more than fume emission
The pressure in inner cylinder space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than 1KPa；Together
When, it is passed through ammonia in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, chimney mezzanine space and flue gas
The pressure differential in chimney internal cylinder space during discharge is more than 1KPa, and the smoke spillage in chimney internal cylinder can be prevented to be pressed from both sides to chimney completely
In layer, chimney can be controlled from further corrosion；The ammonia being passed through in chimney, it can neutralize at chimney internal cylinder corrosion hole
Acidic materials in flue gas, prevent that corroding hole further deteriorates expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with the clay of UV resistant at the installation gap of observation vent window, it is ensured that chimney interlayer pressure is in 10KPa
When observation vent window do not loosen.The observation vent window of plastic-steel structure glass material both can conveniently observe feelings inside chimney
Condition, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Embodiment 2.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the elasticity of UV resistant
Rubber is as filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney
The tightness of outer barrel, and consolidation process is carried out to filler, filler is can tolerate 10KPa pressure；To be passed through compressed air
Mode, the pressure of chimney mezzanine space is maintained 10KPa, now, when the pressure of chimney mezzanine space is more than fume emission
The pressure in chimney internal cylinder space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than
1KPa；Meanwhile it is passed through ammonia in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, chimney mezzanine space
It is more than 1KPa with the pressure differential in chimney internal cylinder space during fume emission, completely the smoke spillage in chimney internal cylinder can be prevented to arrive
In chimney interlayer, chimney can be controlled from further corrosion；The ammonia being passed through in chimney, chimney internal cylinder etch pit can be neutralized
The acidic materials in flue gas at hole, prevent that corroding hole further deteriorates expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with UV resistant elastic caoutchouc at the installation gap of observation vent window, it is ensured that chimney interlayer pressure exists
Vent window is observed during 10KPa not loosen.The observation vent window of plastic-steel structure glass material both can be conveniently in observation chimney
Portion's situation, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Embodiment 3.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the plastics of UV resistant
As filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney outer barrel
Tightness, and to filler carry out consolidation process, make filler can tolerate 10KPa pressure；To be passed through the side of compressed air
Formula, the pressure of chimney mezzanine space is set to maintain 10KPa, now, the chimney when pressure of chimney mezzanine space is more than fume emission
The pressure in inner cylinder space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than 1KPa；Together
When, it is passed through ammonia in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, chimney mezzanine space and flue gas
The pressure differential in chimney internal cylinder space during discharge is more than 1KPa, and the smoke spillage in chimney internal cylinder can be prevented to be pressed from both sides to chimney completely
In layer, chimney can be controlled from further corrosion；The ammonia being passed through in chimney, it can neutralize at chimney internal cylinder corrosion hole
Acidic materials in flue gas, prevent that corroding hole further deteriorates expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with the plastics of UV resistant at the installation gap of observation vent window, it is ensured that chimney interlayer pressure is in 10KPa
When observation vent window do not loosen.The observation vent window of plastic-steel structure glass material both can conveniently observe feelings inside chimney
Condition, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Embodiment 4.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the clay of UV resistant
As filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney outer barrel
Tightness, and to filler carry out consolidation process, make filler can tolerate 10KPa pressure；In a manner of nitrogen cylinder supplies,
The pressure of chimney mezzanine space is set to maintain 10KPa, now, the chimney internal cylinder when pressure of chimney mezzanine space is more than fume emission
The pressure in space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than 1KPa；Meanwhile
Ammonia is passed through in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, when chimney mezzanine space is with fume emission
The pressure differential in chimney internal cylinder space be more than 1KPa, the smoke spillage in chimney internal cylinder can be prevented completely into chimney interlayer,
Chimney can be controlled from further corrosion；The ammonia being passed through in chimney, the flue gas at chimney internal cylinder corrosion hole can be neutralized
In acidic materials, prevent corrode hole further deteriorate expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with the clay of UV resistant at the installation gap of observation vent window, it is ensured that chimney interlayer pressure is in 10KPa
When observation vent window do not loosen.The observation vent window of plastic-steel structure glass material both can conveniently observe feelings inside chimney
Condition, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Embodiment 5.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the clay of UV resistant
As filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney outer barrel
Tightness, and to filler carry out consolidation process, make filler can tolerate 10KPa pressure；In a manner of air blower is blown,
The pressure of chimney mezzanine space is set to maintain 10KPa, now, the chimney internal cylinder when pressure of chimney mezzanine space is more than fume emission
The pressure in space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than 1KPa；Meanwhile
Ammonia is passed through in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, when chimney mezzanine space is with fume emission
The pressure differential in chimney internal cylinder space be more than 1KPa, the smoke spillage in chimney internal cylinder can be prevented completely into chimney interlayer,
Chimney can be controlled from further corrosion；The ammonia being passed through in chimney, the flue gas at chimney internal cylinder corrosion hole can be neutralized
In acidic materials, prevent corrode hole further deteriorate expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with the clay of UV resistant at the installation gap of observation vent window, it is ensured that chimney interlayer pressure is in 10KPa
When observation vent window do not loosen.The observation vent window of plastic-steel structure glass material both can conveniently observe feelings inside chimney
Condition, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Embodiment 6.
The method of a kind of power plant sleeve-type chimney control corrosion rate leakage, in the present embodiment, first with the clay of UV resistant
As filler to gap carries out encapsulation process between other building structure at chimney top, flue adapter, it is ensured that chimney outer barrel
Tightness, and to filler carry out consolidation process, make filler can tolerate 10KPa pressure；In a manner of air blower is blown,
The pressure of chimney mezzanine space is set to maintain 10KPa, now, the chimney internal cylinder when pressure of chimney mezzanine space is more than fume emission
The pressure in space, the chimney mezzanine space and the pressure differential in chimney internal cylinder space during fume emission are more than 1KPa；Meanwhile
Cyclohexylamine is passed through in chimney interlayer.When the pressure of chimney mezzanine space maintains 10KPa, chimney mezzanine space and fume emission
When the pressure differential in chimney internal cylinder space be more than 1KPa, smoke spillage in chimney internal cylinder can be prevented completely to chimney interlayer
In, chimney can be controlled from further corrosion；The ring amine being passed through in chimney, it can neutralize at chimney internal cylinder corrosion hole
Acidic materials in flue gas, prevent that corroding hole further deteriorates expansion.
In the present embodiment, chimney outer barrel observes the plastic-steel structure glass material that vent window is tolerable 10KPa pressure, institute
State and carry out encapsulation process with the clay of UV resistant at the installation gap of observation vent window, it is ensured that chimney interlayer pressure is in 10KPa
When observation vent window do not loosen.The observation vent window of plastic-steel structure glass material both can conveniently observe feelings inside chimney
Condition, it can ensure to observe the intensity of vent window again.
In the present embodiment, pressure-measuring instrument is set at the observation vent window at 50m, 100m, 150m and 200m height,
The pressure-measuring instrument is with solar energy electrical transfer signal.The setting of pressure-measuring instrument, it is easy to monitor in chimney interlayer
Pressure, to ensure that the pressure energy in chimney interlayer maintains 10KPa.
In the present embodiment, the chimney bottom is provided with the doorframe structure of tolerable 10KPa pressure, the doorframe structure
Inleakage is less than 10 m3/min.2-6 passage and a sliding door are provided with the doorframe structure, the passage is used
In connection supply air line, the sliding door passes in and out for inspection personnel.A length of 50-500cm of the passage, the passage
A width of 50-500cm.A height of 1000cm-1500cm of the sliding door, a width of 500cm-1000cm of the sliding door.
Claims (6)
- A kind of 1. method of power plant sleeve-type chimney control corrosion rate leakage, it is characterised in that with the clay of UV resistant, elasticity Rubber or plastics will be filled sealing as filler at the chimney top on chimney outer barrel, flue adapter, and to filler Consolidation process is carried out to ensure that filler does not loosen under 10KPa pressure, it is ensured that the tightness of chimney outer barrel；To chimney Interlayer provides pressure, the pressure in chimney internal cylinder space when making the pressure of chimney mezzanine space be more than fume emission, the chimney folder The pressure differential in chimney internal cylinder space when sheaf space and fume emission is more than 1KPa, the observation vent window of the chimney 50m, 100m, 150m and 200m highly locate to set pressure-measuring instrument, and the pressure-measuring instrument is with solar energy electrical transfer signal, institute The doorframe structure that chimney bottom is provided with tolerable 10KPa pressure is stated, 2-6 passage and one are provided with the doorframe structure Individual sliding door, the passage are used to connect supply air line, and the sliding door passes in and out for inspection personnel, the length of the passage For 50-500cm, a width of 50-500cm of the passage；Meanwhile volatile alkaline substance is passed through in interlayer.
- 2. the method for power plant sleeve-type chimney control corrosion rate leakage according to claim 1, it is characterised in that by logical Entering the mode of compressed air, nitrogen cylinder supply or air blower air-supply makes the pressure of chimney mezzanine space maintain 10KPa.
- 3. the method for power plant sleeve-type chimney control corrosion rate leakage according to claim 1, it is characterised in that described to wave Hair property alkaline matter is ammonia or ring amine.
- 4. the method for power plant sleeve-type chimney control corrosion rate leakage according to claim 1, it is characterised in that outside chimney The observation vent window of cylinder is the plastic-steel structure glass material of tolerable 10KPa pressure.
- 5. the method for power plant sleeve-type chimney control corrosion rate leakage according to claim 1, it is characterised in that the door The inleakage of mount structure is less than 10 m3/min。
- 6. the method for power plant sleeve-type chimney control corrosion rate leakage according to claim 7, it is characterised in that described to push away The a height of 1000cm-1500cm, a width of 500cm-1000cm of the sliding door of sliding door.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786397A (en) * | 2005-12-14 | 2006-06-14 | 孙克勤 | Chimney with preventing flue permeating corrosion and its method |
| CN200989079Y (en) * | 2006-04-03 | 2007-12-12 | 陈海渊 | Boiler chimney body |
| JP2009085452A (en) * | 2007-09-27 | 2009-04-23 | Stella Kankyo Kagaku:Kk | Solid biomass-firing compact incinerator for waste plastic to suppress generation of dioxine, and upper structure of chimney |
| CN202733312U (en) * | 2012-06-12 | 2013-02-13 | 金川集团股份有限公司 | Sulfuric exhaust gas emptying control device |
| CN203654852U (en) * | 2013-11-22 | 2014-06-18 | 浙江开尔新材料股份有限公司 | Corrosion resistant chimney inner wall steel inner cylinder for thermal power plant |
| CN104406182A (en) * | 2014-11-25 | 2015-03-11 | 湖南天通无腐烟囱工程有限公司 | Thermal insulating layer heating and pressurizing corrosion-resistant chimney |
| CN204630274U (en) * | 2015-05-12 | 2015-09-09 | 湖南涉外经济学院 | Hot blast laminar flow negative-pressure sealing drying and sterilizing device |
| CN105737883A (en) * | 2016-04-26 | 2016-07-06 | 西安西热电站化学科技有限公司 | Positive pressure protection simulating device and method for wet chimney |
-
2017
- 2017-09-28 CN CN201710893386.7A patent/CN107860014B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786397A (en) * | 2005-12-14 | 2006-06-14 | 孙克勤 | Chimney with preventing flue permeating corrosion and its method |
| CN200989079Y (en) * | 2006-04-03 | 2007-12-12 | 陈海渊 | Boiler chimney body |
| JP2009085452A (en) * | 2007-09-27 | 2009-04-23 | Stella Kankyo Kagaku:Kk | Solid biomass-firing compact incinerator for waste plastic to suppress generation of dioxine, and upper structure of chimney |
| CN202733312U (en) * | 2012-06-12 | 2013-02-13 | 金川集团股份有限公司 | Sulfuric exhaust gas emptying control device |
| CN203654852U (en) * | 2013-11-22 | 2014-06-18 | 浙江开尔新材料股份有限公司 | Corrosion resistant chimney inner wall steel inner cylinder for thermal power plant |
| CN104406182A (en) * | 2014-11-25 | 2015-03-11 | 湖南天通无腐烟囱工程有限公司 | Thermal insulating layer heating and pressurizing corrosion-resistant chimney |
| CN204630274U (en) * | 2015-05-12 | 2015-09-09 | 湖南涉外经济学院 | Hot blast laminar flow negative-pressure sealing drying and sterilizing device |
| CN105737883A (en) * | 2016-04-26 | 2016-07-06 | 西安西热电站化学科技有限公司 | Positive pressure protection simulating device and method for wet chimney |
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