Gas-liquid separation device, rear door, cooling device, and gas-liquid separating method

A rear door comprising:

• a heat receiving section configured to recover exhaust heat from a cooling object;
• a vapor pipe being connected to the heat receiving section;
• and
• a gas-liquid separation device;
• wherein the gas-liquid separation device comprises:
• a tank having a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via the vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface;
• and
• a regulating valve which floats on the refrigerant liquid stored in the tank and closes a space between the vapor pipe and the tank.

A cooling device comprising:

• a heat receiving section configured to recover exhaust heat from a cooling object;
• a vapor pipe being connected to the heat receiving section;
• a gas-liquid separation device including:
• a tank having a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via the vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing refrigerant liquid of the refrigerant vapor on a lower surface;
• and
• a regulating valve which floats on the refrigerant liquid stored in the tank and closes a space between the vapor pipe and the tank;
• a heat exchanger configured to condense the refrigerant gas by heat exchange;
• a first pipe configured to connect the gas-liquid separation device and the heat exchanger;
• and
• a second pipe configured to connect the heat exchanger and the gas-liquid separation device.

A method for separating a gas from a liquid, the method comprising:

• providing a regulating valve capable of floating on a refrigerant liquid inside a tank which is provided in a heat receiving section configured to recover exhaust heat from a cooling object, and has a refrigerant vapor inflow section into which a refrigerant vapor flowing out from the heat receiving section via a vapor pipe is introduced, and a refrigerant gas outflow section from which the refrigerant gas of the refrigerant vapor is discharged, the tank being capable of storing the refrigerant liquid of the refrigerant vapor on a lower surface;
• storing the refrigerant liquid on the lower surface in the tank to make the regulating valve float;
• and
• closing a space between the vapor pipe and the tank.