Liquid treatment device and liquid treatment device control method

Abstract

The application provides a liquid treatment device and a control method. The liquid treatment device comprises a liquid supply assembly, a heater, a first heat exchanger comprising two water circuits which exchange heat with each other, a second water circuit connected with the outlet of the heater, a parameter monitoring device for monitoring the parameters of the liquid treatment device, a shunt control device comprising an inlet connected with the outlet of the second water circuit, a first shunt branch and a second shunt branch, and used for controlling the on-off between the inlet and the two shunt branches according to the parameters of the parameter monitoring device, and a second heat exchanger used for heat exchanging the liquid flowing out of the second shunt branch. The heat exchange efficiency of the first heat exchanger is greater than that of the second heat exchanger, or the temperature drop of the second heat exchanger is smaller than that of the first heat exchanger. The scheme can perform heat exchange through the first heat exchanger when the heat exchange demand is small, and correct the outlet water temperature through the second heat exchanger when the heat exchange demand is large, so that the control precision of the outlet water temperature can be improved.

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