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Liquid metal based converter valve cooling system

A liquid metal and cooling system technology, applied in the direction of output power conversion device, cooling/ventilation/heating transformation, power transmission AC network, etc., can solve problems such as limited heat dissipation capacity, reduce accumulation, lower temperature, and improve reliability Effect

Pending Publication Date: 2016-04-27
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the water cooling system has been widely used, its heat dissipation capacity is limited. The heat dissipation capacity of a typical water cooling system is 30W / cm2~50W / cm2. With the rise of the global energy Internet, the power transmitted by the power grid is increasing. The power density of the valve will also be greatly increased, and the resulting large heat flux density puts forward higher heat dissipation requirements for the cooling system

Method used

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  • Liquid metal based converter valve cooling system

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Embodiment Construction

[0034] Embodiments of the invention are described in detail below, examples of which are shown in the drawings, wherein like reference numerals designate like elements or elements having the same function throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] An embodiment of a converter valve cooling system based on liquid metal provided by the present invention is as follows: figure 1 As shown, specifically:

[0036] The cooling system includes a liquid metal radiator 1 , a first heat exchanger 2 and a second heat exchanger 3 connected in sequence. in,

[0037] ①: The liquid metal radiator 1 includes liquid metal pipes arranged in its internal cavity.

[0038] ②: The first heat exchanger 2 includes a first pipe and a second pipe arranged in its internal cavity.

[0039] ③: The second heat exchanger 3 includes a third pip...

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Abstract

The invention provides a liquid metal based converter valve cooling system. The liquid metal based converter valve cooling system comprises a liquid metal heat sink, a first heat exchanger and a second heat exchanger which are sequentially connected, wherein the liquid metal heat sink comprises a liquid metal pipeline arranged in a hollow cavity in the liquid metal heat sink, the first heat exchanger comprises a first pipeline and a second pipeline which are arranged in a hollow cavity in the first heat exchanger, the second heat exchanger comprises a third pipeline arranged in a hollow cavity in the second heat exchanger, the liquid metal pipeline is connected with the first pipeline to form a liquid metal circulation loop, and the second pipeline and the third pipeline are connected to form a deionized water circulation loop. Compared with the prior art, the liquid metal based converter valve cooling system provided by the invention has the advantages that the liquid metal has very high heat conduction capability, heat of a converter valve can be rapidly taken away and is finally dissipated to air through the external heat exchangers, heat accumulation at a hot source can be reduced, and the temperature of a hot source is reduced.

Description

technical field [0001] The invention relates to the technical field of power semiconductor devices, in particular to a liquid metal-based converter valve cooling system. Background technique [0002] In recent years, the UHV DC transmission market at home and abroad has developed rapidly, and the market prospect is very broad. As the core equipment of the UHV DC transmission project, the converter valve is the core functional unit to realize AC-DC conversion, and the cooling effect of the cooling system in the valve body will directly affect the converter performance of the converter valve. Poor heat dissipation of the converter valve element will not only cause overheating and damage to the element, but also cause the DC system to shut down in severe cases. Therefore, the converter valve cooling system plays an important role in the direct current transmission system and needs to have very high reliability. [0003] Due to its high specific heat, high thermal conductivity...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02J3/36H05K7/20H01L23/473
CPCH02J3/36H02M1/00H05K7/20H01L23/473Y02E60/60
Inventor 刘文广温家良
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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