A DC power transmission converter valve circulating cooling device and DC power transmission equipment
A circulating cooling and direct current transmission technology, which is applied in the direction of output power conversion devices, electrical equipment components, cooling/ventilation/heating transformation, etc. Problems such as the flow valve, to improve the filtering effect, reduce the pressure, and prolong the use time
Active Publication Date: 2021-08-20
XUCHANG XUJI JINGRUI TECH
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Problems solved by technology
[0004] In the actual operation process, it was found that after the cooling device has been in operation for a period of time, the conductivity of the cooling water is prone to rise. After the cooling water whose conductivity does not meet the requirements enters the converter valve, it will interfere with the normal operation of the converter valve in slight cases. In severe cases, it will directly damage the converter valve and cause an accident.
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[0023] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings, but not limited thereto.
[0024] A specific embodiment of the direct current transmission equipment provided by the present invention, such as Figure 1 to Figure 5 As shown, the direct current transmission equipment in this embodiment includes a converter valve 104, which has a cooling water inlet and a cooling water outlet, and also includes a circulating cooling device for cooling the converter valve. The structure of the converter valve is the same as that of the direct current transmission converter valve in the prior art, and will not be repeated here.
[0025] The circulating cooling device specifically includes a main circulation loop, a deionization loop, a water supply branch 106 and a voltage stabilizing branch 107 .
[0026] Wherein, the main circulation loop includes a main circulation pump unit 101, an air radiator 102, a main ...
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The invention relates to a circulating cooling device for a direct current transmission converter valve and direct current transmission equipment. The circulating cooling device includes a main circulating pump unit, a radiator, a main filter unit and a degassing tank. The water inlet of the radiator passes through the front water delivery pipeline and the main The water inlet of the filter unit is connected, and a deionization unit is also included. The water inlet of the deionization unit is connected with the front water delivery pipeline, and the water outlet is connected with the water inlet pipeline of the degassing tank. The deionization unit includes a deionization exchanger. Remove the corresponding ions in the cooling water, ensure the conductivity of the cooling water, and improve the stability of the entire device. Moreover, the deionization unit is connected to the front water delivery pipeline, located upstream of the main filter unit, so that part of the cooling water in the front water delivery pipeline returns to the degassing tank after being treated by the deionization unit, and the other part passes through the main filter unit, The diverter valve returns to the degassing tank, which can reduce the pressure on the main filter unit, prolong the service time of the main filter unit, and improve its filtering effect.
Description
technical field [0001] The invention belongs to the technical field of direct current transmission, and in particular relates to a circulating cooling device for a direct current transmission converter valve and direct current transmission equipment. Background technique [0002] During the operation of the converter valve in high-voltage direct current transmission equipment, its internal components such as thyristors, damping capacitors, damping resistors, and voltage equalizing resistors will generate a lot of heat. When the temperature of the components exceeds the set temperature, damage will occur Therefore, a corresponding circulating cooling device is installed corresponding to the converter valve to cool the converter valve to ensure the normal operation of the entire DC power transmission equipment. [0003] The structure of a general circulating cooling device, such as the cooling system host device disclosed in the utility model patent with the authorized announc...
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IPC IPC(8): H02M1/00H05K7/20
CPCH02M1/00H05K7/20927
Inventor 景兆杰雷亚州郑解良罗小勇王强路世康程海丰张新伟
Owner XUCHANG XUJI JINGRUI TECH