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DC (Direct Current) device for equalizing pressure of converter valve waterway

A technology of DC voltage equalization and voltage equalization device, applied in circuits, electrical components, electric solid devices, etc., can solve problems such as the influence of pressure equalization in valve sections and the pressure equalization of thyristors in valve sections.

Active Publication Date: 2011-06-15
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Different valve tower waterway layouts have a great influence on the pressure equalization of the valve section. The unnatural pressure equalization design method requires careful calculation of the pipe length and the arrangement of equipotential needles to achieve equal pressure in the valve section, which in turn affects the equalization of the thyristors in the valve section. to press
Unnatural pressure equalization design method has mature experience, but careful pressure equalization design is required, and a large number of equipotential electrodes and equipotential pipes must be installed in the valve tower

Method used

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  • DC (Direct Current) device for equalizing pressure of converter valve waterway
  • DC (Direct Current) device for equalizing pressure of converter valve waterway
  • DC (Direct Current) device for equalizing pressure of converter valve waterway

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 2 As shown, the DC converter valve water pressure equalization device described in this example consists of a valve tower structure composed of multiple valve layers connected in parallel on different water channel branches. Two valve sections 1a and 1b connected in series form a valve layer. In the valve layer, two valve sections 1a and 1b are connected in series on the same waterway branch, and one equipotential needle 2a is installed at the entrance of the waterway branch of the first valve section 1a, and the other equipotential needle 2b is installed on the At the outlet of the water branch of the second valve section 1b, connect the two equipotential needles and the valve section in series on the same water branch, and then connect them together with two resistors 3a, 3b connected in series in the waterway between t...

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Abstract

The invention discloses a DC (Direct Current) device for equalizing the pressure of a converter valve waterway, which utilizes a design method of combining valve tray natural pressure equalization and valve section natural pressure equalization. The design method has the advantages that the natural pressure equalization is carried out within a valve tray section and a valve section, the pressure equalization can be easily realized when the lengths of pipelines are same only under the condition of meeting requirements of creepage, the careful calculation and design are not needed, and the processes of designing, installing, manufacturing and the like are simple at the same time.

Description

technical field [0001] The invention relates to the field of power electronic equipment, and specifically relates to a water circuit pressure equalizing device for a DC converter valve. Background technique [0002] There is no similar technical invention both at home and abroad at present. Traditional converter valve pressure equalization design usually has two combinations: 1. The valve tower adopts the natural pressure equalization design method, and the valve section adopts the non-natural pressure equalization series design. 2. The valve tower adopts the intermediate design method of the water pipe module without natural pressure equalization, and the valve section adopts the parallel design of natural pressure equalization. Different valve tower waterway layouts have a great influence on the pressure equalization of the valve section. The unnatural pressure equalization design method requires careful calculation of the pipe length and the arrangement of equipotential ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L23/473
Inventor 周建辉习贺勋查鲲鹏魏晓光
Owner CHINA ELECTRIC POWER RES INST
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