CN102661075A - Sectional chimney with single-barrel concrete structure and method for manufacturing sectional chimney - Google Patents
Sectional chimney with single-barrel concrete structure and method for manufacturing sectional chimney Download PDFInfo
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- CN102661075A CN102661075A CN2012101656803A CN201210165680A CN102661075A CN 102661075 A CN102661075 A CN 102661075A CN 2012101656803 A CN2012101656803 A CN 2012101656803A CN 201210165680 A CN201210165680 A CN 201210165680A CN 102661075 A CN102661075 A CN 102661075A
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Abstract
The invention discloses a sectional chimney with a single-barrel concrete structure. The sectional chimney comprises a concrete shell, a first inner barrel is arranged in the concrete shell, the lower end of the first inner barrel is connected with the upper end of the second inner barrel by an annular platform, and a flue opening is disposed on the second inner barrel. A method for manufacturing the sectional chimney with the single-barrel concrete structure includes steps of detaching a lining of the lower side of the first inner barrel in an original concrete chimney; thoroughly clearing refractory bricks of an original heat-insulation layer of the inner wall of the concrete layer or an original corrosion-resistant layer, and enabling the concrete shell to be exposed; mounting the annular platform at brackets of the inner wall of the concrete shell, and connecting the annular platform with the lower end of the first inner barrel; erecting the second inner barrel inside the concrete chimney, and connecting the annular platform with the top of the second inner barrel; and tapping a flue opening at the bottom of the second inner barrel and connecting the flue opening with the flue. The height of the second inner barrel is smaller than that of the original chimney. The sectional chimney and the method have the advantages of energy conservation, environmental protection, wide application range, simplicity and convenience in construction and low cost.
Description
Technical field
The present invention relates to a kind of segmented monotubular concrete structure chimney and manufacturing approach thereof, belong to heavy aseptic technic field.
Background technology
Along with the raising of country to environmental requirement, coal fired power generation unit universal demand is installed desulfurizer, and desulfurizer adopts wet processing more; Flue gas behind the installation wet desulfurization system has very strong corrosivity usually; Corrosion to chimney is very obvious, and early stage domestic most chimney adopts monotubular formula reinforced concrete structure, behind the installation desulphurization plant; Chimney need carry out preservative treatment, and processing mode commonly used is for directly carrying out anticorrosion on wall or erectting the way of inner core in chimney inside again.Directly on barrel, carry out anticorrosionly, have the problem that anticorrosion area is big, cost is high, when liner need be removed, exist the bottom insulation to require problems such as height again; Again there is the high problem of cost equally in the way of establishing inner core in chimney inside, and difficulty of construction is big in addition, and generally limits so far owing to chimney breast; Inner diameter of steel flue is less; Flue gas flow rate is big, thereby causes the chimney pressure drop big, and energy consumption is high; Form " acid rain " because flow velocity causes the chimney acid solution to be entrained in the chimney periphery greatly in addition, influence the chimney surrounding enviroment.
Summary of the invention
Problems such as the cost that the objective of the invention is to solve the anticorrosion existence of barrel is high, difficulty of construction is big provide a kind of energy-conserving and environment-protective, applied widely, easy construction, segmented monotubular concrete structure chimney that cost is low.
In order to achieve the above object; The invention provides a kind of segmented monotubular concrete structure chimney; Comprise concrete shell, it is characterized in that concrete shell inside is provided with first inner core; The lower end of first inner core is connected with the upper end of second inner core through ring-shaped platform, and second inner core is provided with flue opening.
Preferably, the material of described second inner core adopts carbon steel, titanium steel composite board or glass fiber reinforced plastic.
A kind of manufacturing approach of segmented monotubular concrete structure chimney is characterized in that, may further comprise the steps: step 1, with the liner dismounting below first inner core in the former concrete chimney; Step 2 is cleaned out former isolation layer refractory brick of concrete chimney inwall or former anticorrosive coat, exposes concrete shell; Step 3, ring-shaped platform is installed at concrete shell inwall bracket place, makes ring-shaped platform be connected with the lower end of first inner core; Step 4 at second inner core that highly is lower than former chimney height of the inner setting of concrete chimney, is connected ring-shaped platform with the second inner core top, make second inner core and first inner core form a continuous passage; Step 5 is opened a flue opening at the bottom position of second inner core, makes second inner core be connected with flue through flue opening.
Preferably, in the said step 4 ring-shaped platform is connected with the second inner core top, this connected mode adopts direct welding, anchoring or adopts expansion joint to be flexible coupling.
The present invention is that Lower Half is erect an inner core in addition in the monotubular tapered chimney; The inner core that utilizes original monotubular chimney upper and lower to erect forms exhaust gases passes; Ring-shaped platform connects two sections chimneys as intermediate location, thereby forms a continuous discharge flue.Former chimney top is carried out anticorrosion, the inner core that newly set up the bottom, ring-shaped platform also all will carry out anticorrosion.The present invention has the following advantages: (1) is applied widely: can be used for domestic a large amount of concrete monotubular tapered chimney.(2) lower energy consumption: can utilize former chimney top discharge area to greatest extent.(3) environmental protection: can reduce flue gas flow rate through increasing logical cigarette diameter, reduce because of carrying " acid rain " of generation secretly.(4) easy construction:, reduced difficulty of construction owing to effectively reduce the inner core height of new setting.(5) cost is lower.
Description of drawings
Fig. 1 is a kind of structural representation of segmented monotubular concrete structure chimney.
Among the figure: 1 is concrete shell, and 2 is ring-shaped platform, and 3 is second inner core, and 4 is flue opening, and 5 is first inner core.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
As shown in Figure 1, be a kind of structural representation of segmented monotubular concrete structure chimney.The present invention is a kind of segmented monotubular concrete structure chimney, at first with former concrete chimney liner dismounting, former isolation layer refractory brick of concrete chimney inwall or former anticorrosive coat is cleaned out, and exposes concrete shell 1, and does suitable repairing.At one second inner core 3 of the inner setting of concrete chimney; Second inner core 3 highly is lower than former chimney height; Concrete shell 1 inwall bracket place is equipped with ring-shaped platform 2; Ring-shaped platform 2 is connected with second inner core, 3 tops, and connection can be adopted direct welding, anchoring or adopt the expansion joint mode that is flexible coupling.Ring-shaped platform 2 is as first inner core 5 on former chimney top and the intermediate location of second inner core 3.Second inner core 3 and first inner core 5 form a continuous passage, and ring-shaped platform 2 internal diameters are close with the new chimney diameter of erectting, and the bottom position of second inner core 3 has flue opening 4, is connected with flue.Second inner core 3 can adopt vertical type or suspended structure, and material adopts materials such as carbon steel, titanium steel composite board, glass fiber reinforced plastic.
After adopting the present invention, flue gas gets in second inner core 3 through flue, through the processing of wet desulfurization system; Generation has very strong corrosive liquid; Because second inner core 3 blocks it, make this liquid only in second inner core 3, prevented the corrosion of concrete shell 1 bottom.The surface area that the surface area of second inner core 3 is compared concrete shell 1 bottom is little, has reduced and need carry out antiseptic area, makes that the cost when changing is lower.
Claims (4)
1. segmented monotubular concrete structure chimney; Comprise concrete shell (1), it is characterized in that concrete shell (1) inside is provided with first inner core (5); The lower end of first inner core (5) is connected with the upper end of second inner core (3) through ring-shaped platform (2), and second inner core (3) is provided with flue opening (4).
2. a kind of segmented monotubular concrete structure chimney as claimed in claim 1 is characterized in that, the material of described second inner core (3) adopts carbon steel, titanium steel composite board or glass fiber reinforced plastic.
3. the manufacturing approach of a segmented monotubular concrete structure chimney is characterized in that, may further comprise the steps: step 1, the liner dismounting that first inner core (5) in the former concrete chimney is following; Step 2 is cleaned out former isolation layer refractory brick of concrete chimney inwall or former anticorrosive coat, exposes concrete shell (1); Step 3, ring-shaped platform (2) is installed at concrete shell (1) inwall bracket place, makes ring-shaped platform (2) be connected with the lower end of first inner core (5); Step 4 at second inner core (3) that highly is lower than former chimney height of the inner setting of concrete chimney, is connected ring-shaped platform (2) with second inner core (3) top, make second inner core (3) and first inner core (5) form a continuous passage; Step 5 is opened a flue opening (4) at the bottom position of second inner core (3), makes second inner core (3) be connected with flue through flue opening (4).
4. the manufacturing approach of a kind of segmented monotubular concrete structure chimney as claimed in claim 3; It is characterized in that; In the said step 4 ring-shaped platform (2) is connected with second inner core (3) top, this connected mode adopts direct welding, anchoring or adopts expansion joint to be flexible coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165680.3A CN102661075B (en) | 2012-05-24 | 2012-05-24 | Method for manufacturing sectional chimney with single-barrel concrete structure and |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210165680.3A CN102661075B (en) | 2012-05-24 | 2012-05-24 | Method for manufacturing sectional chimney with single-barrel concrete structure and |
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| CN102661075A true CN102661075A (en) | 2012-09-12 |
| CN102661075B CN102661075B (en) | 2014-04-23 |
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| CN201210165680.3A Active CN102661075B (en) | 2012-05-24 | 2012-05-24 | Method for manufacturing sectional chimney with single-barrel concrete structure and |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061579A (en) * | 2013-03-18 | 2014-09-24 | 北京中南亚太环境科技发展有限公司 | Titanium alloy chimney |
| CN108332225A (en) * | 2018-02-26 | 2018-07-27 | 浙江城建煤气热电设计院有限公司 | A kind of single-drum chimney suitable for steam power plant's built by separate periods |
| CN108952304A (en) * | 2018-07-12 | 2018-12-07 | 上海必立结构设计事务所有限公司 | Half sleeve Anti-corrosive chimney |
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| CN102409890A (en) * | 2011-09-05 | 2012-04-11 | 张蕊 | Glass fiber reinforced plastic chimney |
| CN202627626U (en) * | 2012-05-24 | 2012-12-26 | 上海德昊化工有限公司 | Sectional-type single-barrel chimney with concrete structure |
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| CN201462873U (en) * | 2009-01-07 | 2010-05-12 | 上海协鑫电力工程有限公司 | Self-standing multitube bundling steel chimney and combination device containing same |
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| CN201778527U (en) * | 2010-07-12 | 2011-03-30 | 江苏海鹏防腐设备有限公司 | Steel lined glass fiber reinforced plastic chimney |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061579A (en) * | 2013-03-18 | 2014-09-24 | 北京中南亚太环境科技发展有限公司 | Titanium alloy chimney |
| CN108332225A (en) * | 2018-02-26 | 2018-07-27 | 浙江城建煤气热电设计院有限公司 | A kind of single-drum chimney suitable for steam power plant's built by separate periods |
| CN108952304A (en) * | 2018-07-12 | 2018-12-07 | 上海必立结构设计事务所有限公司 | Half sleeve Anti-corrosive chimney |
| CN108952304B (en) * | 2018-07-12 | 2023-10-24 | 上海必立结构设计事务所有限公司 | Semi-sleeve anti-corrosion chimney |
Also Published As
| Publication number | Publication date |
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| CN102661075B (en) | 2014-04-23 |
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Effective date of registration: 20151229 Address after: 201111 room fourth, building 2118, Guanghua Road, 212, Shanghai, Minhang District Patentee after: Shanghai Dehao Chemical Industry Co., Ltd. Patentee after: Shanghai Chen Ming Electric Power Engineering Co., Ltd. Patentee after: Shanghai Weigu Anti-corrosion Engineering Co., Ltd. Address before: 201111 room fourth, building 2118, Guanghua Road, 212, Shanghai, Minhang District Patentee before: Shanghai Dehao Chemical Industry Co., Ltd. |
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Effective date of registration: 20170621 Address after: 201613, room 69, No. 1399, Lane 1802, Shanghai Pine Road, Jiuting Town, Shanghai, Songjiang District Patentee after: Shanghai Chen Ming Electric Power Engineering Co., Ltd. Address before: 201111 room fourth, building 2118, Guanghua Road, 212, Shanghai, Minhang District Co-patentee before: Shanghai Chen Ming Electric Power Engineering Co., Ltd. Patentee before: Shanghai Dehao Chemical Industry Co., Ltd. Co-patentee before: Shanghai Weigu Anti-corrosion Engineering Co., Ltd. |