Pressure regulating system and pressure regulating method of cooling device

Abstract

A pressure regulating system and a pressure regulating method of a cooling device are provided. The system incudes a pipeline, a heat exchanger, a pump and a hydraulic regulation module. The pipeline is configured to allow a cooling liquid to flow therethrough. The heat exchanger and the pump are fluidly connected to an output tube and an input tube of the pipeline, respectively. The hydraulic regulation module includes a pressure sensor, a regulating pipeline and a controller. The pressure sensor is configured to detect a pressure value of the cooling liquid between the heat exchanger and the pump. The regulating pipeline is fluidly connected to the pipeline at a regulating port, which is located between the heat exchanger and the pump. The controller is configured to, in response to the pressure value lower than a target pressure, control a supplementary liquid to flow from the regulating pipeline into the pipeline via the regulating port. The controller is further configured to, in response to the pressure value higher than the target pressure, control the cooling liquid to be discharged from the pipeline to the regulating pipeline via the regulating port.

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