An installation structure and installation method of a wall casing

Abstract

The invention discloses a wall bushing mounting structure and a mounting method. The mounting structure comprises a wall bushing and insulating pull rods, the two ends of the wall bushing are respectively connected with insulating pull rods, and the other ends of the two insulating pull rods are used for being installed in a valve hall wall body, so that the wall bushing and the two insulating pull rods form a triangular shape as a whole. By additionally arranging the insulating pull rods, the stress performance of a through-wall supporting point of the wall bushing can be effectively improved, the through-wall supporting point basically does not bear a horizontal load and a rotating load, and the stress path of a through-wall supporting point stress bearing system is clear. Meanwhile, byadditionally arranging the insulating pull rods, the bending moment borne by the cantilever end of the wall bushing under the action of gravity load and vertical load can be remarkably reduced, and the internal force distribution of the cantilever end is greatly improved. By additionally arranging the insulating pull rods, the stress of the root of the wall bushing under the earthquake action canbe remarkably reduced, the displacement of the top of the bushing is greatly reduced, and the insulating pull rods play an important role in ensuring the safety of the bushing and the normal use of equipment under the strong earthquake action.

Description

technical field [0001] The invention relates to the installation of a wall-piercing bushing, in particular to a wall-piercing bushing installation structure and an installation method. Background technique [0002] The implementation of "West-to-East Power Transmission" is the basic strategy of China's energy and power industry, which can realize the optimal allocation of resources and energy supply on a large scale, and has important practical significance for solving the power supply and environmental problems in the eastern and central regions. HVDC transmission has significant advantages in long-distance, large-capacity transmission and regional power system networking, and will play an important and greater role in building China's future power grid pattern. As an important equipment of HVDC transmission system, the wall bushing is expensive. It is the "throat" of the converter station and has an important function of connecting the valve hall and the DC field. It is on...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing wall bushings are prone to cracks near the root of the flange on the indoor and outdoor sides or the cracks in the flange glue, the embodiment of the present invention provides a wall bushing installation structure and installation method

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