HVDC (high-voltage direct current) converter valve water cooling system

A high-voltage direct current and converter valve technology, which is applied in cooling/ventilation/heating transformation, output power conversion devices, electrical components, etc., can solve the problems of large number of water cooling systems and difficult operation, so as to reduce the difficulty of operation and realize Cooling capacity, to achieve the effect of continuous change

Active Publication Date: 2015-09-30
CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP
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Problems solved by technology

In order to meet the requirements of simulating high-voltage DC working conditions, it is necessary to conduct in-factory tests on the converter valves. If a separate wa

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  • HVDC (high-voltage direct current) converter valve water cooling system

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[0021] In order to make the content of the present invention easier to be understood clearly, the following further describes the present invention in detail based on specific embodiments in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, a high-voltage direct current converter valve water cooling system is composed of a main circulation circuit, a deionization circuit, and a water supplement branch. The main circulation circuit and the deionization circuit are between the deionization circuit and the water supplement branch. Both are connected by an electric ball valve 20, and the main circulation loop includes a main circulation pump 1, a closed cooling tower 7, a main circulation filter 10, an inlet valve temperature transmitter 11, and a main circulation flow transmitter 13 which are connected in sequence through pipelines. , The converter valve group, the outlet valve temperature transmitter 14 and the degassing tank 15. There is also an elect...

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Abstract

The invention discloses an HVDC (high-voltage direct current) converter valve water cooling system. The system comprises a main circulation loop, a deionizing loop and a water supplementing branch, wherein the main circulation loop and the deionizing loop are communicated through an electric ball valve, and the deionizing loop and the water supplementing branch are communicated through an electric ball valve; the main circulation loop comprises a main circulation pump, a closed cooling tower, a main circulation filter, an inlet valve temperature transmitter, a main circulation flow transmitter, a converter valve group, an outlet valve temperature transmitter and a degassing tank which are sequentially communicated through pipelines; power-driven three-way valves are further mounted between the main circulation pump and the closed cooling tower. According to the HVDC converter valve water cooling system, flow distribution can be performed according to cooling capacity of different converter valves, different heat dissipation requirements are met respectively, the number of water cooling systems can be effectively reduced, the operation difficulty is reduced, and the cost is saved.

Description

technical field [0001] The invention relates to a water cooling system for a high-voltage DC converter valve. Background technique [0002] During the operation of the high-voltage DC converter valve, its internal components such as thyristors, damping capacitors, voltage equalizing capacitors, damping resistors, voltage equalizing resistors, saturated reactors, and thyristor control units will generate a lot of heat. When the temperature exceeds its junction temperature, damage will occur causing DC blocking. Therefore, the intelligent closed water cooling circulation system has become a widely used converter valve cooling device due to its advantages of high reliability, high efficiency, and humanization. In order to meet the requirements of simulating high-voltage DC working conditions, it is necessary to conduct in-factory tests on the converter valves. If a separate water cooling system is configured for each set of converter valves, the number of water cooling systems...

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Application Information

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IPC IPC(8): H02M1/00H05K7/20
CPCH05K7/20927H05K7/14339
Inventor 陈武王鹏飞赵盛国张潆月朱亚坤
Owner CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP
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