Inner supporting device for installing large pressure steel pipe

A support device and penstock technology, which is applied in the field of internal support devices for large penstock installations, and can solve the problems of laborious adjustment, large occupation, and high cost
CN113184378AActive Publication Date: 2021-07-30华电云南发电有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
华电云南发电有限公司
Publication Date
2021-07-30

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Abstract

The invention discloses an inner supporting device for installing a large pressure steel pipe, and belongs to the technical field of pressure steel pipe construction. The inner supporting device comprises a hydraulic system and an inner supporting device body, the inner supporting device body comprises a shell, a plurality of supporting arms are arranged on the outer wall of the shell in a circumferential distribution mode, one end of each supporting arm penetrates through the outer wall of the shell, a driving mechanism is arranged in the shell, the end, located in the shell, of the supporting arm is connected with the driving mechanism, and the driving mechanism is used for adjusting the length of the part, extending out of the shell, of the supporting arm. According to the scheme, in the using process, two threaded sleeves can be driven to move reversely at the same time by rotating a first two-way screw rod, the length of the part, extending out of the shell, of the supporting arm is adjusted, when the inner supporting device is disassembled, the multiple supporting piles are disengaged from the inner wall of the pressure steel pipe at the same time, the inner supporting device is disassembled conveniently, and meanwhile, in the installation process, the minimum outer diameter of the inner supporting device body can be adjusted so that the inner supporting device can be suitable for pressure steel pipes with different diameters.
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Description

technical field

[0001] The invention relates to the technical field of penstock steel construction, and more specifically, relates to an internal support device for installing large penstock steel pipes. Background technique

[0002] Penstocks are used more and more in hydropower stations, especially the water delivery system of pumped storage power stations, which are often lined with penstocks in large quantities due to the influence of geological conditions. In the process of water conservancy construction, the pressure steel pipe is rolled by steel plate. During the transportation, the inner support and the outer reinforcement ring are used to reinforce it to prevent deformation; in the subsequent construction process of the pressure steel pipe outsourcing concrete pouring construction, the internal support is also required. Continuous support is used to prevent the penstock from deforming during the outsourcing concrete pouring process; therefore, the internal support m...

Claims

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