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display cooler electronic expansion valve (2)
display cooler electronic expansion valve, liquid level control electronic expansion valve, liquid level control are generally used in display cooler refrigeration devices where the suction superheat is lower than 2℃. The
liquid level control system consists of an electronic expansion valve, a liquid level sensor, and a liquid level controller. Operation principle: When the liquid level in the evaporator changes up and down, the liquid level sensor in the evaporator transmits the proportional relationship of the liquid level change to the liquid level controller. After the liquid level controller processes the signal, the output command acts on The stepping motor of the electronic expansion main valve increases or decreases its opening to keep the refrigerant level within a limited range. The stepping motor of the electronic expansion valve is to output the changing power in real time according to the change of the refrigerant level. This real-time output of the changing power can overcome the changing spring force of the main expansion valve under various working conditions and various load conditions in time to make the valve The opening degree of the evaporator meets the demand for the liquid supply of the evaporator, and the liquid supply of the evaporator can match the evaporation load in real time, that is, the display cooler electronic expansion valve can be set by the controller to effectively control the evaporation level.
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