CN205897175U - Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure - Google Patents
Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure Download PDFInfo
- Publication number
- CN205897175U CN205897175U CN201620043245.7U CN201620043245U CN205897175U CN 205897175 U CN205897175 U CN 205897175U CN 201620043245 U CN201620043245 U CN 201620043245U CN 205897175 U CN205897175 U CN 205897175U
- Authority
- CN
- China
- Prior art keywords
- power plant
- flue gas
- chimney
- fired power
- coal fired
- 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.)
- Active
Links
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model relates to a coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure, including coal fired power plant flue gas desulfurization concrete class chimney, the compound prefabricated plate of polylith line with rubber metal covers the chimney internal face with the predetermined contact connection of chimney inner wall, leaves between the compound prefabricated plate of polylith line with rubber metal to be stained with the anticorrosive lid of autovulcanization on expansion joint and the expansion joint face and to stitch the offset plate. The advantage: firstly, the non -corrosibility can be reliable high, and the live time is long, secondly, cheap relatively, the construction convenience of cost has great economic benefit and environment -protection meaning to the transformation that coal fired power plant desulfurization chimney is anticorrosive.
Description
Technical field
This utility model is related to a kind of coal fired power plant flue gas desulfurization coagulation great soil group inner wall of stack anticorrosion structure, pre- using factory
Line with rubber composite metal plate processed, scene splicing assembling are it is adaptable to newly-built or operation cement concrete type coal-fired plant flue gas take off
The anti-corrosion transformation of sulfur chimney and maintenance.
Background technology
Coal-burning power plant's chimney is the important component part of thermal power generation system, carries and is discharged to greatly the flue gas of boiler combustion
Important task in gas-bearing formation.Coal-fired plant flue gas are sulfur dioxide (so2) and sulfur trioxide (so3) to atmospheric environment major pollutants
Deng, for environment protection, for coal-fired plant flue gas must carry out desulfurization (flue gas desulfurizationg,
Abbreviation fgd) after could discharge.
In early days, the fume exhausting type of coal-burning power plant be all straight-line it may be assumed that flue gas from boiler through chimney in line to atmosphere, arrange
Cigarette temperature is about 125～180 DEG C.Inner wall of stack is in drying regime with this understanding, and flue gas is not straight to inner wall of stack material
Life of practicing midwifery is corroded.Implement continuing to increase of national environmental protection policy dynamics with power industry, Thermal generation unit must time limit
Install desulfurizer additional, especially for Wet Flue Gas Desulfurization Technique, the flue gas water content entering chimney is big, and temperature is low.Inner wall of stack has sternly
Condense again, have acid solution trickling produced by condensation along inner wall of stack, cause the saturation that inner wall of stack is chronically at acid to invade blister state,
Extremely strong corrosion is produced to chimney.Domestic once had such case, although certain coal-burning power plant adds in original smoke evacuation system
Fill desulfurizer, but anti-corrosion transformation has not been carried out to original cement concrete chimney, inner wall of stack heavy corrosion within 5 years,
Almost crisis to whole generating set normal operation [Xing Jun, Liu Fuyun. the anti-corrosion present situation of domestic thermal power plant wet desulphurization chimney
And prospect [j]. general risk management system, 2013,27(4): 1-5；Cui Yongzhong etc. heat-engine plant desulfurized system and chimney corrosion condition
Analysis [j]. Guangxi electric power, 2010,33 (3): 47-49].Coal-fired plant's desulfuration chimney is anti-corrosion particularly important as can be seen here.
At present, as coal-burning power plant's wet desulphurization chimney aseptic technic mainly adopt inner wall of stack lining cutting foamed glass brick,
The rigid corrosion protective lining material such as spraying resin/glass flake anticorrosive paint, the anticorrosive titanium of liner or nickel alloy material [Feng Yungang.
FGD after funnel antiseptical inquires into [j]. Shanghai Electric Power, 2008, (1): 39-41；Li Yange, Xu great Wei, Sun Qiang,
Wang Maolin. the selection [j] of Wet chimney inside lining anti-corrosive material. environmental protection for electric power, 2008,24(1): 22-24；Magnify thickness.
The problem of the anti-corrosion presence of Chimney in Fossil Power Plant and suggestion [j]. high-tech and industrialization, 2009, (1): 88-92].But due to
All more than 100, high reaches 240m to the chimney height of coal-burning power plant.Rocking and swinging by a relatively large margin will certainly be produced, work
Period also can produce certain vibration.Meanwhile, when equipment breaks down shutdown, instantaneously great temperature change can be produced, on
The rigid corrosion protective lining stated will produce structural deterioration.And the load-bearing of whole glass steel chimney and long-term ageing all exist greatly
The risk of long-effective corrosion safety.There is the erosion-resisting titanium of highest or the solder technology of nickel alloy lining requires harshness, cost is very
High.But more seriously occurring as soon as weld corrosion phenomenon it is seen that this technology fails thoroughly to solve titanium using not interior for a long time
The stress concentration of composite board soldering joint and stress corrosion problem.
Utility model content
Purpose of design: in order to avoid existing anti-corrosion brick adds adhesive class scheme, anticorrosive paint class scheme, fiberglass class side
Weak point in the technology such as case, liner corrosion resistant metal inner core scheme, provides one kind can fundamentally solve newly-built or
The cement concrete type fire coal chimney running is because vibrate, rocking, the factor such as stress concentration causes chimney anticorrosion lining crack, take off
The technical barriers such as layer, seepage, corrosion, make chimney anticorrosion security performance thoroughly be improved and can greatly extend it to use the longevity
Life and the coal fired power plant flue gas desulfurization coagulation great soil group inner wall of stack anticorrosion structure reducing anti-corrosion improvement cost.
Design: in order to realize above-mentioned purpose of design.This utility model is according to coal-fired to existing cement concrete type
The analysis of power plant desulfurization chimney anticorrosion present situation, find the brick liner of chimney anticorrosion produce crack, the delamination of glass flake coatings or
The anticorrosive coat cracks such as crack, the load-bearing of fiberglass and aging, liner corrosion resistant metal plate weld corrosion and delamination damage and are all
Because chimney shape is tall and big, easily vibrate, rock, cause stress concentration and material linear expansion coefficient is inharmonious etc. caused by factor.
For solving the above problems, this utility model is directed to newly-built or operation cement concrete type coal fired power plant flue gas desulfurization chimney
Anti-corrosion transformation and maintenance adopt the following technical scheme that
1st, pinpoint pre-buried according to design requirement in inner wall of stack first or reset some metal hangers or bolt link
Point, more connected and fixing by being provided with the line with rubber metal composite precoated plate that can fix suspension member or connection, successively by line with rubber metal
Composite precast slab splices and covers the anti-corrosion face of inner wall of stack, using autovulcanization joint glue by splice reserved expansion joint fill and lead up and
An autovulcanization corrosion cap seam offset plate is pasted so as to sealing, surface smooths above this seam.
2nd, line with rubber metal composite precoated plate in-site installation connecting method can need spirit according to the physical dimension of chimney and construction
Live and design and adjust.
3rd, line with rubber metal composite precoated plate used is the butyl rubber excellent using antiseptic property or other rubber and metal
Plate can live autovulcanization or be prepared from by high temperature vulcanized adhesion technique in factory, metal back is prevented through spraying or cladding
Rotten process, its size and dimension can according to the construction of chimney it needs to be determined that.
4th, autovulcanization joint glue used and lid seam glue are also with the butyl rubber of anti-corrosion excellent performance as matrix, through modification
Process, to ensure the cohesive of itself and line with rubber metal pre-casting plate rubber.
Technical scheme: a kind of coal fired power plant flue gas desulfurization coagulation great soil group inner wall of stack anticorrosion structure, including coal-burning power plant's cigarette
Desulfurization coagulation great soil group chimney, polylith line with rubber metal composite precoated plate contact default with inner wall of stack is connected covering inner wall of stack
Face, leaves between polylith line with rubber metal composite precoated plate and is stained with autovulcanization corrosion cap seam offset plate on expansion joint and expansion joint face.
Compared with background technology, one is that antiseptic property is reliable high to this utility model, and use time is long；Two is that cost is relatively low
Honest and clean, easy construction, has very great economic interests and environment protection significance to the transformation of Desulphurization for Coal-fired Power Plant chimney anticorrosion antiseptical.
Brief description
Fig. 1 is the structural representation of line with rubber metal composite precoated plate.
Fig. 2 be in Fig. 1 a-a to cross section structure diagram.
Fig. 3 is inner wall of stack pre-buried (or default) suspension member setting schematic diagram.
Fig. 4 is the partial enlargement structural representation of Fig. 3.
Specific embodiment
Embodiment 1: 1-4 referring to the drawings.A kind of coal fired power plant flue gas desulfurization coagulation great soil group inner wall of stack anticorrosion structure, bag
Include coal fired power plant flue gas desulfurization coagulation great soil group chimney, polylith line with rubber metal composite precoated plate 5 is with the default contact of inner wall of stack 6 even
Connect covering inner wall of stack face, leave between polylith line with rubber metal composite precoated plate 5 and be stained with autovulcanization on expansion joint and expansion joint face
Corrosion cap stitches offset plate.Constitute and be equipped with one layer of antiseptic rubber layer 2 and metal on metallic plate 1 face in line with rubber metal composite precoated plate 5
Plate 1 is provided with the suspension member being fixedly connected with inner wall of stack or connects part 4.Described antiseptic rubber layer 2 adopts butyl layers.Described gold
Belong to plate 1 back side to be equipped with one layer of spraying corrosion resistant coating or be coated with preservative treatment layer 3.Described suspension member or connector are hook or bolt.
The new method of cement concrete type coal fired power plant flue gas desulfurization chimney anticorrosion transformation, its specific implementation method is as follows:
1st, the physical dimension according to chimney and construction requirement, design line with rubber metal composite precoated plate 5 physical dimension and
It splices arrangement mode, with chimney Synchronization Design, can run the transformation of chimney for newly-built chimney or maintenance can be according to original design
Drawing carries out conceptual design, and carries out on-site land survey and checking.On this basis, just can determine that pre-buried (or default) hook or spiral shell
The position of bolt 4 link and quantity, and then determine corresponding suspension member or the position that is connected on every piece of line with rubber metal composite precoated plate
Put and quantity, hook (or bolt) and suspension member and fastening structure are designed simultaneously.
2nd, according to above-mentioned design, in pre-buried (or default) suspension member of the inner wall of stack needing anti-corrosion transformation or maintenance or bolt chain
Fitting.
3rd, manufacture and design line with rubber metal composite precoated plate 5 according to above-mentioned, first steel plate is cut into certain size, and weld extension
Part or chaining part 4, surface sand-blasting rust cleaning line with rubber, the back side (one side of welding suspension member) with anticorrosive paint spraying or coats process layer 3.
4th, prefabricated line with rubber composite metal plate 5 scene is carried out assembly, assembled line with rubber metal composite precoated plate is wanted and chimney
Pre-buried (or default) suspension member of inwall 6 or bolt connection simultaneously fasten.
5th, after the completion of the prefabricated scene of line with rubber metal composite carries out assembly, filled out splicing flexible gap using autovulcanization joint glue
Flat and lining lid seam glue is sealed against.
It is to be understood that: the detailed word although above-described embodiment is contrasted to mentality of designing of the present utility model
Description, but these word descriptions, simply describe to the simple text of this utility model mentality of designing, rather than new to this practicality
The restriction of type mentality of designing, any combination, increase or modification without departing from this utility model mentality of designing, each fall within this practicality new
In the protection domain of type.
Claims (5)
1. a kind of coal fired power plant flue gas desulfurization concrete chimney inner wall anti-corrosive structure, including coal fired power plant flue gas desulfurization concrete cigarette
Chimney, is characterized in that: polylith line with rubber metal composite precoated plate (5) contact default with inner wall of stack is connected covering inner wall of stack face,
Leave between polylith line with rubber metal composite precoated plate (5) and autovulcanization corrosion cap seam offset plate is stained with expansion joint and expansion joint face.
2. coal fired power plant flue gas desulfurization concrete chimney inner wall anti-corrosive structure according to claim 1, is characterized in that: line with rubber
One layer of antiseptic rubber layer (2) is equipped with metallic plate (1) face in metal composite precoated plate (5) and metallic plate (1) is provided with and cigarette
Suspension member or company's part (4) that chimney inwall is fixedly connected.
3. coal fired power plant flue gas desulfurization concrete chimney inner wall anti-corrosive structure according to claim 1, is characterized in that: described
Antiseptic rubber layer (2) adopts butyl layers.
4. coal fired power plant flue gas desulfurization concrete chimney inner wall anti-corrosive structure according to claim 2, is characterized in that: described
Metallic plate (1) back side is equipped with one layer of spraying corrosion resistant coating or is coated with preservative treatment layer (3).
5. coal fired power plant flue gas desulfurization concrete chimney inner wall anti-corrosive structure according to claim 2, is characterized in that: described
Suspension member or connector are hook or bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043245.7U CN205897175U (en) | 2016-01-18 | 2016-01-18 | Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043245.7U CN205897175U (en) | 2016-01-18 | 2016-01-18 | Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897175U true CN205897175U (en) | 2017-01-18 |
Family
ID=57765266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043245.7U Active CN205897175U (en) | 2016-01-18 | 2016-01-18 | Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205897175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195877A (en) * | 2019-05-01 | 2019-09-03 | 浙江顺豪新材料有限公司 | The inexpensive steel liner chimney anticorrosion lining offset plate and method that service life is 30 years |
-
2016
- 2016-01-18 CN CN201620043245.7U patent/CN205897175U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195877A (en) * | 2019-05-01 | 2019-09-03 | 浙江顺豪新材料有限公司 | The inexpensive steel liner chimney anticorrosion lining offset plate and method that service life is 30 years |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201381670Y (en) | Chimney adopting sectional glass reinforced plastic inner cylinder for exhausting low-temperature flue gas after wet desulfurization | |
| CN102979351A (en) | Method for corrosion resistance of rigid and flexible type composite integral casting material inner lining of wet chimney of thermal power plant | |
| CN109028119A (en) | A kind of anti-corrosion chimney and its construction method of installation | |
| CN105674310A (en) | New method for corrosion resistant transformation of flue gas desulfurization concrete chimney of coal-fired power plant | |
| CN205897175U (en) | Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure | |
| CN205746927U (en) | Coal fired power plant flue gas desulfurization coagulation great soil group chimney line with rubber metal composite precoated plate | |
| CN201593795U (en) | Sealed lining antiseptic structure of wet chimney | |
| CN103982079A (en) | Construction method for anticorrosion device of thermal power chimney | |
| CN105841173B (en) | A kind of inner wall of stack anti-corrosion high-molecular polythene layer and its construction method | |
| CN206018670U (en) | One kind is used for sectional formula chimney glass reinforced plastic inner cylinder body attachment means | |
| CN104989167B (en) | A kind of chimney anticorrosion structure and its construction method | |
| CN103742932B (en) | The remodeling method of the anticorrosion chimney of coal fired power plant flue gas desulfurization | |
| CN102661075B (en) | Method for manufacturing sectional chimney with single-barrel concrete structure and | |
| CN107575080A (en) | Impervious anti-corrosion type single-cylinder type reinforced concrete chimney and its construction method | |
| CN205089031U (en) | Chimney anticorrosion structure | |
| CN207614627U (en) | Desulphurization system absorption tower with anticorrosive function | |
| CN204285491U (en) | The first anti-thawing apparatus of cylinder after a kind of single-drum chimney desulfurization | |
| CN203010645U (en) | Chimney steel internal cylinder connected via flanges | |
| CN202328301U (en) | Bracket anticorrosion system for reinforced concrete single-tube chimney after wet desulphurization | |
| CN217978854U (en) | Anticorrosive structure of prefabricated chimney flange joint of sectional type metal | |
| CN205860057U (en) | A kind of inner wall of stack anticorrosion high-molecular polythene layer | |
| CN204127982U (en) | Coal-burning power plant's wet desulphurization single-drum chimney bracket node | |
| CN205042615U (en) | Glass steel anticorrosion structure of cross steel framework | |
| CN211694959U (en) | Expansion joint structure made of glass fiber reinforced plastic | |
| CN209341285U (en) | Expansion joint for steel inner cylinder of chimney |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180830 Address after: 311121 No. 1, Dragon Boat Road, Cang Qian street, Yuhang District, Hangzhou, Zhejiang Patentee after: Zhejiang Shun Hao new materials Co., Ltd. Address before: 311121 No. 1, Dragon Boat Road, Cang Qian street, Yuhang District, Hangzhou, Zhejiang Patentee before: Hangzhou Shower Rubber Engineering Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure Effective date of registration: 20200617 Granted publication date: 20170118 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: Zhejiang Shunhao New Materials Co.,Ltd. Registration number: Y2020330000357 |