Hanging basket for installing and overhauling side face assembly of converter valve and operation method

Abstract

A hanging basket for installing and overhauling a converter valve side face assembly comprises a bottom platform, a protection fence, a door fence, trundles and hooks, an operation area is arranged on the bottom platform, the protection fence is located on the side face of the operation area and surrounds the operation area, an entrance is formed in the protection fence, the door fence is located at the entrance, and the door fence is hinged to the protection fence. The trundles are located below the bottom platform, the trundles are rotationally connected with the bottom platform, the hooks are fixedly connected with the bottom platform, the protective fence comprises a fence frame and an iron sheet which are fixedly connected, the fence frame is formed by welding steel pipes, and the iron sheet is located below the fence frame. The hanging basket is adopted in the hanging basket converter valve side face assembly installation and maintenance method. The hanging basket can be hung on a valve layer frame of the converter valve through a hook, an operation area is surrounded by the protective fence, safety protection can be provided for operators, and the device is high in installation efficiency, flexible, convenient and low in cost.

Description

technical field [0001] The invention relates to the field of maintenance devices for side components of a converter valve, in particular to a hanging basket for installation and maintenance of side components of a converter valve and a working method. Background technique [0002] Flexible HVDC converter valve is the core equipment to realize flexible HVDC transmission. With the development of flexible direct current transmission technology, the converter valve structure gradually tends to be modularized, integrated and large-scale. It consists of three levels: "module level", "valve section level" and "valve tower level". There are complex and precise assembly relationships between them, which brings great challenges to the installation of diverter valves and the maintenance and repair of detailed components in the valves. At present, in the industry, the installation process of the converter valve is served by pre-installing a crane in the valve hall and purchasing a scis...

AI Technical Summary

Problems solved by technology

[0003] The installation technology of pre-installing row cranes and purchasing scissor lift trucks in the valve hall has problems such as high investment cost, poor mobility, and low installation efficiency.

For example, the cost of a scissor lift that meets the height of the valve tower is as high as hundreds of thousands of yuan

In addition, the frequency of use of mobile cranes at the installation site is high, and it takes more time for mobile cranes or lift trucks to complete the station conversion, which is inefficient and restricts the progress of the installation

[0004] The structural type of "two-half tower + half-tower maintenance platform" ensures the convenience of maintenance and repair of most components on the front of the diverter valve, but for the installation or maintenance of some important components located on the side of the diverter valve, such as the cold water pipe of the valve , the maintenance platform between the half towers cannot support the operators

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