CN104989167A - Anti-corrosion structure for chimney and construction method thereof - Google Patents
Anti-corrosion structure for chimney and construction method thereof Download PDFInfo
- Publication number
- CN104989167A CN104989167A CN201510419525.3A CN201510419525A CN104989167A CN 104989167 A CN104989167 A CN 104989167A CN 201510419525 A CN201510419525 A CN 201510419525A CN 104989167 A CN104989167 A CN 104989167A
- Authority
- CN
- China
- Prior art keywords
- chimney
- substrate
- titanium plate
- anticorrosion structure
- titanium
- 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.)
- Granted
Links
Landscapes
- Chimneys And Flues (AREA)
Abstract
The invention discloses an anti-corrosion structure for a chimney. The anti-corrosion structure comprises a first coat (2), an adhesive layer (3) and a titanium plate layer (4) which are arranged in sequence, wherein a chimney base (1) is coated with the first coat (2), and the titanium plate layer (4) adheres to the first coat (2) through the adhesive layer (3). The invention further discloses a construction method of the anti-corrosion structure for the chimney. The method comprises the steps of cleaning the chimney base, coating the cleaned chimney base with the first coat material, applying adhesive and sticking a titanium plate after the first coat material on the chimney base is solidified, and conducting inspection and repair. According to the method, the lapped titanium plate is directly stuck onto the structural layer of a chimney by means of the titanium plate adhesive. The method has the advantages that construction period is short, the requirement for the site construction environment is low, and the problem that titanium plate welding quality is poor due to poor construction site welding environment is solved.
Description
Technical field
The present invention relates to a kind of chimney anticorrosion technology, particularly relate to a kind of chimney anticorrosion structure and the construction method thereof that can be used for the industries such as electric power, cement, metallurgy, chemical industry.
Background technology
For reaching the requirement of national environmental protection policy, just can be discharged in air after the flue gas of domestic large-size thermal power plant has to pass through desulfurization.Current desulphurization system generally adopts Limestone-gypsum Wet Flue Gas Desulfurization Process technology, flue gas is after desulphurization system, change moist flue gas and wet flue gas into, the condensate liquid of wet flue gas and moist flue gas and generation thereof all has severe corrosive, the operation of equipment after serious threat desulphurization system.
In addition, current most desulfurization fume system all eliminates GGH (flue gas heater), and the chimney of existing operation is design according to the design criterion of dry flue gas chimney mostly, the running environment of inapplicable wet flue gas, therefore there is large-area corrosion in the chimney of many thermal power plants, badly influenced the safe and stable operation of whole power plant system.
Based on the problems referred to above, have at present to adopt and undertaken antiseptic in the inside of chimney by the mode of welding titanium plate, but mostly there is following problem: 1) construction period is long, and the labour intensity of workman is large; 2) because Site Welding environment is poor, cause there is more problems of welded quality; 3) easily there is flue gas leak source because of problems of welded quality in chimney substrate, thus corrosion phenomenon occurs.
Summary of the invention
The object of the present invention is to provide a kind of construction period short, require low to the construction environment at scene, and chimney anticorrosion structure and the construction method thereof of construction quality can be ensured.
For achieving the above object, the concrete technical scheme of a kind of chimney anticorrosion structure of the present invention and construction method thereof is:
A kind of chimney anticorrosion structure, comprises the scratch coat, viscose glue oxidant layer and the titanium flaggy that set gradually, and scratch coat is coated with and is located in chimney substrate, and titanium flaggy is sticked on scratch coat by viscose glue oxidant layer.
A construction method for chimney anticorrosion structure, comprises the following steps: clear up chimney substrate; Brushing basecoat material in chimney substrate after the cleaning; Brushing adhesive after the suprabasil basecoat material solidification of chimney, and paste titanium plate; Check and repair.
Compared with prior art, the advantage of chimney anticorrosion structure of the present invention and construction method thereof is:
1) adopt titanium plate adhesive directly to paste in chimney substrate by the titanium plate of overlap joint in the present invention, the Site Welding of traditional titanium plug of tobacco chimney aseptic technic can be avoided, solve the problems of welded quality because Site Welding environment difference band comes.
2) in the present invention, adhesive forms the seamless articulamentum of continuous print as the separation layer of system on chimney base; due to adhesive there is high temperature resistant, corrosion-resistant, impermeabilisation, ageing-resistant, adhesion stress strong, thus plays the effect of protection chimney substrate well.
3) the adhesive firm time in the present invention is short, and construction environment requires low, thus has site operation cycle short feature.
4) the present invention is applicable to different chimney structures (substrate of chimney concrete inner core, inner steel cylinder of chimney substrate, the substrate of chimney acid resisting brick inner core), and also by the overlap distance of adjustment titanium plate, to adapt to the bonding of chimney irregular surface.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of chimney anticorrosion structure of the present invention.
Detailed description of the invention
In order to better understand object of the present invention, structure and function, below in conjunction with accompanying drawing, further detailed description is done to a kind of chimney anticorrosion structure of the present invention and construction method thereof.
As shown in Figure 1, chimney anticorrosion structure of the present invention comprises the scratch coat 2, viscose glue oxidant layer 3 and the titanium flaggy 4 that set gradually, and scratch coat 2 is coated with and is located in chimney substrate 1, and titanium flaggy 4 is sticked on scratch coat 2 by viscose glue oxidant layer 3.Wherein, titanium flaggy 4 comprises polylith titanium plate, and polylith titanium plate mutually overlaps and sticks on scratch coat 2 by viscose glue oxidant layer 3, to form titanium flaggy 4.
Chimney anticorrosion structure of the present invention can adapt to the running environment of chimney wet flue gas, can be suitable for different chimney structures (substrate of chimney concrete inner core, inner steel cylinder of chimney substrate, the substrate of chimney acid resisting brick inner core) simultaneously.And the present invention uses titanium plate adhesive directly to be pasted on the deck of chimney by the titanium plate of overlap joint, has the construction period short, to advantages such as site operation environmental requirement are low, also solve the titanium plate problems of welded quality that job site welding surroundings difference band comes simultaneously.
As shown in Figure 1, the construction method of chimney anticorrosion structure of the present invention, comprises the following steps:
First, according to chimney construction figure, build construction cage platform.
Secondly, chimney substrate is cleared up.Wherein, need to carry out different cleaning technologies according to the different base of chimney: when 1) chimney substrate is cast concrete base, rinse the floating ash on surface, base with high-pressure washing water; Dry; Levelling with resin mortar.2), when chimney substrate is acid resisting brick substrate, the floating ash on surface, base is rinsed with high-pressure washing water; Dry; Repair; Levelling with resin mortar.3) when chimney substrate is steel base, derusting by sandblasting.
Then, brushing basecoat material in chimney substrate after the cleaning.Wherein, the basecoat material of brushing is formulated according to a certain ratio by materials such as acid-resistant powder, prodan, water glass.
Then, brushing adhesive after the suprabasil basecoat material solidification of chimney, and paste titanium plate (the interpolation titanium plate of machine-shaping).Wherein, the adhesive of brushing is formulated according to a certain ratio by materials such as epoxy resin (E44), dibutyl phthalate, thinner, ethylenediamines.In addition, in this step, first to carry out pasting of titanium plate in the main body section of chimney, and then carry out at the privileged sites such as special-shaped part, bracket position, position, shrinkage joint of chimney the special project construction that titanium plate pastes.And also need in this step to carry out maintenance operations after pasting titanium plate, concrete maintenance process is: after adhesive vacuum being mixed, and brushes on basecoat material surface, pastes titanium plate, and at room temperature maintenance 1 ~ 3 day.
Finally, check and accept according to Design of Construction Organization, check construction quality, and construction quality problem is improved in repairing.
The present invention adopts titanium plate adhesive directly to paste in chimney substrate by the titanium plate of overlap joint, can guarantee that adhesive can not be exposed in the oxidation environment of flue gas, guarantee the ageing-resistant performance of adhesive after titanium plate overlap joint; And adhesive forms the seamless articulamentum of continuous print as the separation layer of system on chimney base, thus play the effect of protection chimney substrate well.In addition, present invention, avoiding the Site Welding of traditional titanium plug of tobacco chimney aseptic technic, solve the problems of welded quality because Site Welding environment difference band comes.And only need tens hours due to adhesive firm time, thus there is site operation cycle short feature.
Further describe invention has been by specific embodiment above; but it should be understood that; here concrete description; should not be construed as the restriction to the spirit and scope of the invention; one of ordinary skilled in the art to the various amendments that above-described embodiment is made, belongs to the scope that the present invention protects after reading this specification.
Claims (7)
1. a chimney anticorrosion structure, it is characterized in that, comprise the scratch coat (2), viscose glue oxidant layer (3) and the titanium flaggy (4) that set gradually, scratch coat (2) is coated with and is located in chimney substrate (1), and titanium flaggy (4) is sticked on scratch coat (2) by viscose glue oxidant layer (3).
2. chimney anticorrosion structure according to claim 1, it is characterized in that, titanium flaggy (4) comprises polylith titanium plate, and polylith titanium plate mutually overlaps and sticks on scratch coat (2) by viscose glue oxidant layer (3), to form titanium flaggy (4).
3. a construction method for chimney anticorrosion structure, is characterized in that, comprises the following steps:
Chimney substrate is cleared up;
Brushing basecoat material in chimney substrate after the cleaning;
Brushing adhesive after the suprabasil basecoat material solidification of chimney, and paste titanium plate;
Check and repair.
4. the construction method of chimney anticorrosion structure according to claim 3, is characterized in that, in the step of clear up chimney substrate, when chimney substrate is cast concrete base, method for cleaning is: the floating ash rinsing surface, base with high-pressure washing water; Dry; Levelling with resin mortar.
5. the construction method of chimney anticorrosion structure according to claim 3, is characterized in that, in the step of clear up chimney substrate, when chimney substrate is acid resisting brick substrate, method for cleaning is: the floating ash rinsing surface, base with high-pressure washing water; Dry; Repair; Levelling with resin mortar.
6. the construction method of chimney anticorrosion structure according to claim 3, is characterized in that, in the step of clear up chimney substrate, when chimney substrate is steel base, method for cleaning is: derusting by sandblasting.
7. the construction method of chimney anticorrosion structure according to claim 3, it is characterized in that, brushing adhesive after the suprabasil basecoat material solidification of chimney, and paste in the step of titanium plate, first carry out pasting of titanium plate in the main body section of chimney, then carry out pasting of titanium plate at the special-shaped part of chimney, bracket position, position, shrinkage joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419525.3A CN104989167B (en) | 2015-07-16 | 2015-07-16 | A kind of chimney anticorrosion structure and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510419525.3A CN104989167B (en) | 2015-07-16 | 2015-07-16 | A kind of chimney anticorrosion structure and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989167A true CN104989167A (en) | 2015-10-21 |
| CN104989167B CN104989167B (en) | 2018-04-13 |
Family
ID=54301038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510419525.3A Active CN104989167B (en) | 2015-07-16 | 2015-07-16 | A kind of chimney anticorrosion structure and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989167B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375324A (en) * | 2019-07-18 | 2019-10-25 | 成都云白环境设备制造有限公司 | A kind of steel stack inner wall anti-corrosive structure and its construction method |
| CN112681864A (en) * | 2020-12-15 | 2021-04-20 | 江苏德固防腐科技有限公司 | Composite anti-corrosion structure for annular titanium plate chimney of thermal power plant and coating process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62217013A (en) * | 1986-03-18 | 1987-09-24 | Kawasaki Steel Corp | Exhaust tube |
| CN101891993A (en) * | 2010-07-06 | 2010-11-24 | 重庆大众防腐有限公司 | Fluoropolymer organic lining anticorrosive material for chimney, flue and other pipelines and containers and construction method thereof |
| CN202274497U (en) * | 2011-10-09 | 2012-06-13 | 一方科技发展有限公司 | Corrosion-resistant structure for chimney liner |
| CN104088500A (en) * | 2014-07-17 | 2014-10-08 | 洛阳双瑞精铸钛业有限公司 | Method for laying anti-corrosion titanium lining on steel chimney of power plant |
| CN205089031U (en) * | 2015-07-16 | 2016-03-16 | 北京国能中电节能环保技术有限责任公司 | Chimney anticorrosion structure |
-
2015
- 2015-07-16 CN CN201510419525.3A patent/CN104989167B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62217013A (en) * | 1986-03-18 | 1987-09-24 | Kawasaki Steel Corp | Exhaust tube |
| CN101891993A (en) * | 2010-07-06 | 2010-11-24 | 重庆大众防腐有限公司 | Fluoropolymer organic lining anticorrosive material for chimney, flue and other pipelines and containers and construction method thereof |
| CN202274497U (en) * | 2011-10-09 | 2012-06-13 | 一方科技发展有限公司 | Corrosion-resistant structure for chimney liner |
| CN104088500A (en) * | 2014-07-17 | 2014-10-08 | 洛阳双瑞精铸钛业有限公司 | Method for laying anti-corrosion titanium lining on steel chimney of power plant |
| CN205089031U (en) * | 2015-07-16 | 2016-03-16 | 北京国能中电节能环保技术有限责任公司 | Chimney anticorrosion structure |
Non-Patent Citations (1)
| Title |
|---|
| 周至祥: "《火电厂湿法烟气脱硫技术手册》", 30 June 2006 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375324A (en) * | 2019-07-18 | 2019-10-25 | 成都云白环境设备制造有限公司 | A kind of steel stack inner wall anti-corrosive structure and its construction method |
| CN110375324B (en) * | 2019-07-18 | 2020-10-02 | 成都云白环境设备制造有限公司 | Steel chimney inner wall anticorrosion structure and construction method thereof |
| CN112681864A (en) * | 2020-12-15 | 2021-04-20 | 江苏德固防腐科技有限公司 | Composite anti-corrosion structure for annular titanium plate chimney of thermal power plant and coating process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989167B (en) | 2018-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104047427A (en) | Anti-seepage and thermal-insulation construction method for external wall and external window | |
| CN103759282B (en) | A kind of anticorrosion method for interior of metal flue | |
| CN104989167A (en) | Anti-corrosion structure for chimney and construction method thereof | |
| CN106958718A (en) | A kind of pipe lining restorative procedure | |
| CN104775530A (en) | Interface treatment method for horizontal construction seam of concrete | |
| CN205089031U (en) | Chimney anticorrosion structure | |
| CN202485016U (en) | Wet-desulphurization anticorrosion system of inner-steel-cylinder chimney of thermal power plant | |
| CN101349364B (en) | Cable stand anti-corrosive process | |
| CN215517200U (en) | Anticorrosive coating | |
| CN103742932B (en) | The remodeling method of the anticorrosion chimney of coal fired power plant flue gas desulfurization | |
| CN103742931B (en) | Coal-fired power plant flue gas desulfuration anti-corrosion chimney and manufacturing method thereof | |
| CN202274497U (en) | Corrosion-resistant structure for chimney liner | |
| CN105423066A (en) | Anti-corrosion repairing method for flange on ocean oil platform | |
| CN104929254A (en) | Antiseptic and processing method for margin plate at bottom outside gas chamber | |
| CN109899624A (en) | A kind of anti-corrosion pipeline interface anticorrosion process | |
| CN206018670U (en) | One kind is used for sectional formula chimney glass reinforced plastic inner cylinder body attachment means | |
| CN104895392A (en) | Chimney multilayer corrosion prevention system compound rubber brick system | |
| CN103485577B (en) | A kind of desulfurization after funnel anti-corrosion system of anticorrosion fluorubber deck and anticorrosion construction method thereof | |
| CN207614627U (en) | Desulphurization system absorption tower with anticorrosive function | |
| CN109432971A (en) | A kind of drying tower tower body | |
| CN202274499U (en) | Corrosion-resistant structure for corbel region in chimney | |
| CN205746927U (en) | Coal fired power plant flue gas desulfurization coagulation great soil group chimney line with rubber metal composite precoated plate | |
| CN201705002U (en) | Anticorrosive device for inner wall of chimney | |
| CN201925940U (en) | Flexible protective lining for chimney or flue | |
| CN205897175U (en) | Coal fired power plant flue gas desulfurization concrete chimney inner wall anticorrosion structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100022 Beijing city Chaoyang District Tonghui Road No. 69 Building No. 4 hospital Haifeng Dan Mansion Applicant after: China Power Conservation and Environment Protection Co., Ltd. Address before: 100020, AB, 8 floor, ocean Guanghua International Center, No. 10 Jin Tong West Road, Beijing, Chaoyang District Applicant before: Beijing Guoneng Zhongdian Energy-Saving Environmental Protection Technology Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |