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Thermoelectric refrigeration auxiliary direct-current power transmission converter valve cooling system

A DC power transmission and thermoelectric refrigeration technology, applied in output power conversion devices, cooling/ventilation/heating renovation, electrical components, etc., can solve problems such as site constraints and bulky heat exchangers, improve construction efficiency and facilitate replacement. Simple, environmental tolerance-enhancing effect

Inactive Publication Date: 2014-04-23
GUANGZHOU GOALAND ENERGY CONSERVATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, in many cases, due to the above principles, the selected heat exchanger is usually bulky and thus limited by the site

Method used

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  • Thermoelectric refrigeration auxiliary direct-current power transmission converter valve cooling system
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  • Thermoelectric refrigeration auxiliary direct-current power transmission converter valve cooling system

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Effect test

Embodiment 1

[0022] Such as figure 2 As shown, a thermoelectric refrigeration assisted DC transmission converter valve cooling system, which includes a water supply pump 1, a deionization system 2, a main circulating water pump 3, a converter valve 4, an air cooler 5, a main filter 6 and a tee Valve 7 also includes refrigeration galvanic couple stack 8, plate heat exchanger 9 and controllable DC power supply 10, such as image 3 As shown, the cooling couple stack 8 and the controllable DC power supply 10 form a closed loop, the hot end of the cooling couple stack is connected to the water outlet of the converter valve through the plate heat exchanger 9-1, and the cold end of the cooling couple stack It is connected with the water inlet end of the diverter valve through the plate heat exchanger 9-2.

[0023] In order to better realize the present invention, the thermoelectric cooling assisted direct current transmission converter valve cooling system further includes a commutator 11 throu...

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Abstract

The invention provides a thermoelectric refrigeration auxiliary direct-current power transmission converter valve cooling system. The system comprises a water supply pump, a deionization system, a main circulating pump, a converter valve, an outer cooling heat exchanger, a main filter and a three-way valve. The system further comprises a refrigeration galvanic couple pile and a controllable direct-current power supply, wherein the refrigeration galvanic couple pile and the controllable direct-current power supply form a closed loop, the hot end of the refrigeration galvanic couple pile is connected with the water outlet end of the converter valve through a plate-type heat exchanger, and the cold end of the refrigeration galvanic couple pile is connected with the water inlet end of the converter valve through a plate-type heat exchanger. According to the thermoelectric refrigeration auxiliary direct-current power transmission converter valve cooling system provided by the invention, the overall heat dissipation capability of the outer cooling heat exchanger of the direct-current power transmission converter valve cooling system can be improved, and the size of the outer cooling heat exchanger can be reduced; and the direction of current of the refrigeration galvanic couple pile is changed through a commutator to achieve the function of a heater in winter, thereby reducing the power of the heater.

Description

technical field [0001] The invention relates to a cooling system for a direct current transmission converter valve, in particular to a cooling system for a thermoelectric refrigeration assisted direct current transmission converter valve. Background technique [0002] Closed water cooling system, such as figure 1 As shown, it is currently widely used in the cooling of HVDC converter valves, and the temperature resistance of the water cooling system is determined by the climatic environment and geographical environment in which the converter valves are used. In practical engineering applications, due to the high temperature in summer, the cooling capacity of the water cooling system is insufficient in summer, and the internal circulation water needs to be heated by an electric heater when the temperature is too low in winter. At the same time, in flexible DC power transmission, the water cooling system has a higher degree of modularization, and it is necessary to use a suita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H05K7/20
Inventor 文玉良柯加良张恩龙梁柏友耿曼
Owner GUANGZHOU GOALAND ENERGY CONSERVATION TECH
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