Method for manufacturing sectional chimney with single-barrel concrete structure and
A technology of concrete structure and manufacturing method, which is applied in the direction of building types, buildings, towers, etc., can solve the problems of high cost and difficult construction, and achieve the effects of reducing energy consumption, reducing construction difficulty, and reducing acid rain
Active Publication Date: 2014-04-23
上海辰鸣电力工程有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problems of high cost and difficult construction of the tube wall anticorrosion, and provide a method for manufacturing a segmented single-tube concrete chimney with energy saving, environmental protection, wide application range, simple construction and low cost
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Embodiment 1
[0013] Such as figure 1 Shown is a structural schematic diagram of a segmented single-tube concrete chimney. The present invention is a sectioned single-tube concrete chimney. Firstly, the inner lining of the original concrete chimney is removed, and the original heat-insulating layer refractory brick or the original anti-corrosion layer on the inner wall of the concrete chimney is cleaned up to expose the concrete shell 1, and appropriate repairs are made. . A second inner cylinder 3 is erected inside the concrete chimney, the height of the second inner cylinder 3 is lower than the height of the original chimney, an annular platform 2 is installed on the inner wall of the concrete shell 1, and the annular platform 2 is connected with the top of the second inner cylinder 3 Connection, the connection can be directly welded, anchored or softly connected by expansion joints. The ring-shaped platform 2 is used as the transition part between the first inner tube 5 and the second ...
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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 [0001] The invention relates to a manufacturing method of a segmented single-tube concrete structure chimney, which belongs to the technical field of heavy anticorrosion. Background technique [0002] With the improvement of national environmental protection requirements, coal-fired power generation units generally require the installation of desulfurization devices, and desulfurization devices mostly use wet processes. The flue gas after the installation of wet desulfurization systems is usually very corrosive, which is very corrosive to the chimney. Obviously, most domestic chimneys in the early days used a single-tube reinforced concrete structure. After the desulfurization equipment was installed, the chimney needed anti-corrosion treatment. The commonly used treatment methods were to directly carry out anti-corrosion on the wall or re-erect the inner tube inside the chimney. Carrying out anti-corrosion directly on the wall of the chimney has the problems...
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IPC IPC(8): E04H12/28E04H12/02E04H12/12
Inventor 靳庆新
Owner 上海辰鸣电力工程有限公司