Emptying device of cool fan submersible pump and control method

Abstract

The invention relates to an emptying device of a cool fan submersible pump and a control method, the device comprises a machine body and a water circulating system which is arranged in the machine body, the water circulating system is provided with a submersible pump which is electrically connected with an electronic control board, the electric control board is provided with an emptying program which controls the submersible pump to work intermittently, and air in the submersible pump is rapidly expelled under the control of the emptying program. The control method is as follows: after each power-off, when the machine is started again, the submersible pump is energized and works for 1-30 seconds and then stops working for 1-30 seconds, and then after repeating 2-10 times, the submersible pump works continuously. The control program which is set in the electronic control board can control the submersible pump to work intermittently, and after repeating power-on and power-off for several times, the air in the submersible pump can be rapidly expelled within 10 seconds. The emptying device has the advantages of having simple and reasonable structure, working safely, pumping water rapidly, having low cost and high efficiency and saving energy.

Description

technical field [0001] The invention relates to a cooling fan, in particular to an emptying device and a control method of a cooling fan submersible pump. Background technique [0002] The control of the small submersible pump in the existing cooling fan water system is mainly to control the conduction control of the main chip on the control circuit board to the thyristor, and the control of the thyristor to the water pump on and off, so that the water pump can continue to work. However, due to the low head and flow rate of the submersible pump used, the ability to overcome atmospheric pressure is also relatively small. When the submersible pump is working for the first time, it is difficult to quickly discharge the air in the pump and pipeline, which affects the pumping speed, resulting in slow pumping speed and making the water It can't be pumped out for a long time, usually it takes 3-10 minutes to pump the water up, and the water can't be pumped to the wet curtain quickl...

AI Technical Summary

Problems solved by technology

However, due to the low head and flow rate of the submersible pump used, the ability to overcome atmospheric pressure is also relatively small. When the submersible pump is working for the first time, it is difficult to quickly discharge the air in the pump and pipeline, which affects the pumping speed, resulting in slow pumping speed and making the water It cannot be pumped out for a long time, it usually takes 3-10 minutes to pump the water up, and the water cannot be pumped to the wet curtain quickly

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