Beverage cooling device

A beverage cooling device, comprising:

• a body,
• a first cooling tank, configured in the body and filled with a first coolant, wherein the first cooling tank is configured with a first temperature sensor;
• a second cooling tank, configured in the body and filled with a second coolant, wherein a temperature of the second coolant is lower than that of the first coolant, the second cooling tank is configured with a second temperature sensor;
• a cooling pipeline, including:
• a first pipeline, configured in the first cooling tank and connected to an inlet end;
• and
• a second pipeline, configured in the second cooling tank and connected to the first pipeline and an outlet end;
• a cleaning module, configured in the body and including:
• a cleaning pipeline, connected to a cleaning liquid source and the inlet end;
• and
• a valve body, connected to the cleaning pipeline;
• and
• a control unit, connected or electrically connected to the valve body;
• wherein each the first cooling tank and the second cooling tank is respectively configured with an intake valve and a drain valve, and the first temperature sensor, the second temperature sensor, each intake valve and each drain valve are electrically connected to the control unit;
• wherein when the first temperature sensor detects that the temperature of the first coolant is higher than a first temperature threshold, the control unit opens the intake valve and the drain valve of the first cooling tank, so that the temperature of the first coolant is lower than or equal to the first temperature threshold;
• wherein when the second temperature sensor detects that the temperature of the second coolant is higher than a second temperature threshold, the control unit opens the intake valve and the drain valve of the second cooling tank, so that the temperature of the second coolant is lower than or equal to the second temperature threshold.