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DC power transmission converter valve cooling water circuit and its electrodes and metal electrode body

A metal electrode and electrode technology, applied in the direction of circuits, electric solid devices, output power conversion devices, etc., can solve the problems of poor electric field distribution, reduce the formation and spread, and improve the effect of electric field distribution characteristics

Active Publication Date: 2018-12-07
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a metal electrode body for electrodes to solve the technical problem that the electrode in the prior art only has a single or multiple straight column electrode needles, resulting in poor electric field distribution; at the same time, the present invention also provides a Using the electrode of the above-mentioned metal electrode body and the cooling water circuit of the direct current transmission converter valve

Method used

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  • DC power transmission converter valve cooling water circuit and its electrodes and metal electrode body
  • DC power transmission converter valve cooling water circuit and its electrodes and metal electrode body
  • DC power transmission converter valve cooling water circuit and its electrodes and metal electrode body

Examples

Experimental program
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Effect test

Embodiment 1

[0033] like Figure 1 to Figure 3 As shown, the electrode in this embodiment includes an electrode base 1, which is a metal base connected with a wire 6 by screws. The electrode base 1 is provided with a mounting hole, and the opening of the mounting hole is located on the top mounting surface of the electrode base. A metal electrode body 3 is inserted into the hole, and the metal electrode body 3 includes a central straight column part 31, and a spiral envelope part 32 is sheathed on the center straight column part 31, and the spiral envelope part is cylindrical as a whole. The envelope portion 32 is arranged coaxially with the central straight column portion 31 , and the central straight column portion 31 and the helical envelope portion 32 are integrally structured.

[0034] The helical envelope portion 32 has an initial segment 321 at the top and a tail segment 322 at the bottom, and the initial segment 321 of the helical envelope portion 32 is connected to the top of the ...

Embodiment 2

[0041] like Figure 4 , Figure 5As shown, compared with the electrode in Example 1, the structure of the metal electrode body is the same, and will not be repeated here. The difference is mainly in the fixed assembly method of the metal electrode body 12 and the electrode base 11. In this embodiment In an example, the electrode base 11 is provided with a mounting hole for inserting the mounting and inserting section of the metal electrode body 12, and a crimping and fixing structure is provided at the mounting hole to press-fit and lock the mounting and inserting section in the mounting hole. , the crimping fixing structure here may be a crimping ring sleeve structure, when the installation inserting section is inserted into the installation hole, the deformed crimping ring sleeve crimps and locks the installation inserting section.

[0042] In addition, the corresponding sealing ring 10 is directly embedded in the sealing ring installation groove provided on the electrode b...

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PUM

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Abstract

Provided are a direct current converter valve cooling water channel and an electrode and a metal electrode body thereof (3). A metal electrode body of an electrode comprises a central column portion (31) installed at an electrode base (1). A helical wrapping portion (32) surrounds the central column portion. The helical wrapping portion (32) has a start section (321) at the top thereof and a tail section (322) at the bottom thereof. The start section of the helical wrapping portion is connected to the top of the central column portion.

Description

technical field [0001] The invention relates to the field of power system equipment and components, in particular to a cooling water circuit for a direct current transmission converter valve, its electrodes and a metal electrode body. Background technique [0002] With the rapid development of technologies such as power semiconductors, high-voltage direct current transmission based on thyristors and IGBT converter valves has shown great promise in long-distance, large-capacity power transmission projects and island power transmission, urban power distribution network expansion and transformation, and large-scale wind farm grid connection. With its unique advantages, it can effectively solve the problem of uneven energy distribution in my country, realize optimal allocation of resources, and improve the efficiency of comprehensive air pollution control. [0003] At present, power devices such as high-voltage DC converter valve thyristors / IGBTs, damping resistors, and voltage e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L23/13H01L23/473H01L23/48
CPCH01L23/13H01L23/473H02M1/06
Inventor 张建范彩云刘堃李凯邱文龙王超王晓民
Owner STATE GRID CORP OF CHINA