Pumping and injecting integrated device and liquid pumping and injecting method of novel water cooling system

Abstract

The invention belongs to the technical field of converter water cooling systems, and relates to a pumping and injecting integrated device and a liquid pumping and injecting method of a novel water cooling system. The device includes a mobile device, a cooling liquid storage tank, a control box, a three-phase variable frequency water pump, a frequency converter, a filter, two three-way joints and reversing valves, wherein the cooling liquid storage tank, the control box, the three-phase variable frequency water pump, the frequency converter, the filter, two three-way joints and the reversing valves are distributed on the mobile device. The frequency converter is used to power the three-phase variable frequency water pump, so as to realize stepless regulation control of the flow rate of a coolant. By adding the design of the control box, the flow direction of the frequency converter and two reversing valves can be controlled, thereby realizing the conversion of injecting and pumping functions. The filter is arranged in the inlet of the three-phase variable frequency water pump. When liquid is injected and pumped, the coolant flows through the filter in the same direction, which can filter out fine impurities in the coolant. Automatic switching of injecting and pumping functions is realized through the switching of the first and second reversing valves. Two people which carry outsimultaneous operation are reduced to one people in operation. The working time is shortened by 1 / 3. The production efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of converters, and relates to a water cooling system, in particular to a novel water cooling system pumping and injecting integrated device and a liquid pumping and injecting method. Background technique [0002] With the continuous improvement of the power level of the converter device and the switching frequency of the power electronic device, the loss of the device and the heat flux density increase accordingly, and the requirements for the cooling system are also getting higher and higher. The water cooling system has the characteristics of high heat dissipation efficiency and low noise, and has been widely used in high-power ships, wind power, locomotives and EMU converters. The water cooling system is mainly composed of water pumps, heat exchangers, water cooling substrates, pipelines and expansion tanks. After the converter is assembled, the coolant needs to be injected into the water-cooling system,...

AI Technical Summary

Problems solved by technology

[0004] The existing manual liquid injection and pumping device has the following disadvantages: ①The whole bucket of coolant weighs 200kg and is placed on a small cart, and two people are required to operate it when moving; ②Manually rotate the pump, which takes time and effort for workers and low work efficiency; ③When the water-cooling system pumps liquid, there is no filter device in the drain line, and the impurities in the line will contaminate the cooling liquid again, which will affect the subsequent reuse; ④Injection and pumping require two sets of devices to switch back and forth, which is inconvenient to operate and cannot Meet the production needs of large-volume converters

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