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Shield ball fitting for converter station valve hall

A shielding ball and converter station technology, applied in the field of shielding ball fittings, can solve problems such as complex structure of shielding ring fittings, difficulties in production and manufacturing

Active Publication Date: 2013-09-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a shielding ball fitting suitable for the large-diameter busbar used in the valve hall of the converter station, so as to solve the existing problems of complex structure, production and production problems in the existing shielding ring fittings for corona control of the large-diameter busbar. create difficult problems

Method used

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  • Shield ball fitting for converter station valve hall
  • Shield ball fitting for converter station valve hall
  • Shield ball fitting for converter station valve hall

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Embodiment Construction

[0015] Embodiment of the shielding ball fittings for the valve hall of the converter station of the present invention: as Figure 1-5 As shown, including the spherical shell and the intermediate ring body 3, the spherical shell is formed by butt jointing of the upper shielding hemisphere 1 and the lower shielding hemisphere 2, and the upper shielding hemisphere 1 and the lower shielding hemisphere 2 are formed by spinning a 2mm thick aluminum alloy plate; The middle ring body 3 is set at the butt joint position of the inner spherical surface of the spherical shell, and is surrounded by a 4mm thick aluminum alloy plate. The lower shielding hemisphere 2 and the middle ring body 3 are connected together by spot welding, while the upper shielding hemisphere The hemisphere 1 and the middle ring body 3 are detachably connected by countersunk head screws arranged along the circumference of the middle ring body connected between the two, so that after the upper shielding hemisphere 1 a...

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Abstract

The invention discloses a shield ball fitting for a converter station valve hall. The shield ball fitting comprises a spherical shell formed by butt-connecting an upper shield hemisphere and a lower shield hemisphere. A middle ring peripherally extending along a butt connection interface is arranged at the butt connection of the inner spherical surface of the spherical shell. The middle ring is fixedly connected with the lower shield hemisphere and is detachably connected with the upper shield hemisphere. The spherical shell is formed by butt-connecting the two shield hemispheres which are assembled through the middle ring disposed at the butt connection of the inner spherical surface of the spherical shell, the process is simple, and accordingly the shield ball fitting is quite suitable for being mounted on a large-diameter tubular bus bar and is also convenient to produce on large scale.

Description

technical field [0001] The invention relates to a fitting for a valve hall of a DC UHV converter station, in particular to a fitting for a shielding ball. Background technique [0002] Shielding rings are commonly used in conventional substations to control corona on fittings, but in DC UHV transmission systems, due to the use of UHV DC transmission, the tube busbars used in DC UHV converter stations have relatively large diameters, such as ±800kV converters The pole tube busbar diameter of the 7.2 million kilowatt station has reached φ450mm, and the diameter of the 8 million kilowatt pole tube busbar of the ±1100kV converter station in the future may reach φ600mm. If the traditional shielding ring is used to shield the tube busbar, the shielding ring will face Huge volume, complex structure, difficult production and manufacturing, and relatively high cost. Contents of the invention [0003] The purpose of the present invention is to provide a shielding ball fitting suita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G5/00
Inventor 王祖力黄勇赵鸿飞韩国辉田刚领雷咸伦常林晶张爱芳
Owner STATE GRID CORP OF CHINA
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