Method for dismounting tank top system of thin oil sealing-type dry-type gas tank

A sealed gas cabinet technology, applied in the direction of adjustable capacity gas storage tanks, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems of heavy weight of the cabinet top system, difficulty in dismantling the gas cabinet, and large construction height , to achieve the effect of fast construction speed, low construction cost and cost reduction

Active Publication Date: 2010-03-31
CHINA THIRD METALLURGICAL GRP
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Problems solved by technology

[0002] In recent years, my country's blast furnace ironmaking is in a stage of rapid development, smelting equipment is developing towards large-scale and environmental protection, coal gas, steam combined cycle power generation and other projects are increasingly being developed and constructed by major steel mills, and gas tanks are used as power generation projects The supporting facilities have entered a peak period of construction and renovation. The gas cabinets built in the past have also entered the period of centralized renovation and scrapping. task, thin oil-sealed dry-type gas cabinets have the characteristics of heavy weight, large span, and high construction height of the top system of the cabinet, which bring great difficulties to the removal of gas cabinets

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  • Method for dismounting tank top system of thin oil sealing-type dry-type gas tank

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Embodiment Construction

[0019] A method for dismantling the roof system of a thin oil-sealed dry-type gas tank, the specific steps of which are as follows:

[0020] 1) Make work holes on all the cabinet top plates 2 close to the connection between the cabinet top truss 1 and the column 10. The size of the work holes should meet the principle that people and equipment can pass through according to the situation, and protective railings should be set around the holes . Install the operating platform 5 at the proper position of the lower chord beam of the cabinet top truss 1. After the operating platform 5 is installed, it should be checked by the safety personnel before it can be operated by people.

[0021] 2) Install the cabinet top truss support 4 on the uppermost column 10 of the cabinet body. The cabinet top truss support 4 should be firmly welded to the column 10 and tightly connected to the cabinet top truss 1 to ensure that all the cabinet top truss supports 4 are evenly distributed Force. Re...

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Abstract

The invention relates to a method for dismounting a tank top system of a thin oil sealing-type dry-type gas tank. The method comprises the following steps: installing a tank top support on an upper most section of post; dismounting connecting pieces of tank top trusses and posts; using tank top supporting posts to support the tank top system; and then falling the tank top system and a piston system down to the bottom of the gas tank by using a buoyancy lift method; then, supporting the tank top system by using a tank top central bearing bracket; and finally dismounting the tank top system byhoisting equipment. The method does not need heavy hoisting equipment, only needs less frocks and equipment to dismount superhigh long-span truss structure; and the method has the advantages of fast construction speed, convenient operation, high safety and reliability and low construction cost; the method can be widely used for dismounting the tank top system of thin oil sealing-type dry-type gastanks.

Description

technical field [0001] The invention relates to a method for dismantling equipment, in particular to a method for dismantling the top system of a thin oil-sealed dry-type gas tank. Background technique [0002] In recent years, my country's blast furnace ironmaking is in a stage of rapid development, smelting equipment is developing towards large-scale and environmental protection, coal gas, steam combined cycle power generation and other projects are increasingly being developed and constructed by major steel mills, and gas tanks are used as power generation projects The supporting facilities have entered a peak period of construction and renovation. The gas cabinets built in the past have also entered the period of centralized renovation and scrapping. task, the thin oil sealed dry gas tank has the characteristics of heavy weight, large span and high construction height of the top system of the tank, all of which bring great difficulties to the removal of the gas tank. Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17B1/24
Inventor 孟庆华王延忠焦洪福刘志臣陈月水张喜超史铭杰吴刚盛仁祥杨家岐
Owner CHINA THIRD METALLURGICAL GRP
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