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An air cooler string cooling tower cooling system for HVDC converter valve

An air cooler and cooling system technology, which is applied to electrical components, output power conversion devices, electrical equipment structural components, etc. Efficiency and the effect of less water consumption

Inactive Publication Date: 2019-01-15
XUCHANG XUJI JINGRUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an air cooler series cooling tower cooling system for direct current transmission converter valves, to solve the problem of low control precision of the existing cooling system manual input closed cooling tower control mode

Method used

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  • An air cooler string cooling tower cooling system for HVDC converter valve

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0021] This embodiment provides an air cooler series cooling tower cooling system for DC power transmission converter valves, which is used to dissipate heat for DC power transmission converter valves, wherein the DC power transmission converter valves can be thyristor converter valves, IGBT converter valves , IGCT converter valve, IGET converter valve and other principles and forms of converter valves.

[0022] The cooling system mainly includes two parts, one is the air cooler subsystem, and the other is the closed cooling tower subsystem. Wherein, in order to ensure cooling efficiency and cooling reliability, the air cooler subsystem is composed of at least two redundantly arranged air coolers 3, such as figure 1 shown. The closed cooling tower subsystem includes a closed cooling tower and other related parts. The closed cooling tower is a closed evapora...

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Abstract

The invention relates to an air cooler string cooling tower cooling system for a HVDC converter valve. The temperature sensor is provided on the coolant output pipe of the air cooler subsystem, It isused for detecting the temperature of the coolant flowing out of the coolant output pipe of the air cooler subsystem in real time, and the control module controls whether to put the coolant into theclosed cooling tower according to the collected temperature information, and realizes the heat dissipation of the converter valve by using the cooperation operation of the air cooler and the closed cooling tower, and improves the heat dissipation efficiency. Compared with the manual control, the timing control of the closed cooling tower is very accurate, the control reliability is high, and the overheating operation of the converter valve is avoided. Moreover, this is an automatic control mode, and the staff need not be specially assigned to take charge of this part, which reduces the labor cost.

Description

technical field [0001] The invention relates to an air cooler series cooling tower cooling system for a direct current transmission converter valve, belonging to the technical field of direct current transmission converter valve cooling. Background technique [0002] The core component of the DC transmission project, the thyristor converter valve, will generate a lot of heat during operation. It needs to be cooled by the heat exchange equipment of the converter valve's closed cooling system to ensure the normal operating temperature of the converter valve. At present, there are two main types of conventional heat exchange equipment: water cooling and air cooling. Generally, the water cooling method is an evaporative cooling tower, and the air cooling method is an air cooler. [0003] During the operation of the evaporative cooling tower, due to the evaporative concentration and partial discharge of the spray water, fresh spray water needs to be replenished regularly. Spray...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20909H05K7/20927H05K7/20945
Inventor 景兆杰肖松丽郑解良王成龙尹姣姣雷亚州潘雪萍张新伟
Owner XUCHANG XUJI JINGRUI TECH
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