| 摘要 |
PURPOSE:To perform the stable feed of a liquid refrigerant necessary to a refrigerant heater by a method wherein an equalizing pipe having an on-off valve is installed between a receiver and a gas liquid separator, the opening and closing period of the on-off valve is decreased with each amount of an increase in temperature or a pressure detected on the outlet side of the refrigerant heater. CONSTITUTION:With an on-off valve 13 brought into an opening state, a receiver 2 and a gas liquid separator 3 is brought into an uniform pressure state, and a liquid refrigerant in the receiver 2 is forced to flow in the gas liquid separator 3 under gravity. With the on-off valve 13 brought into a closed state again, a second check valve 9 is closed, and a condensate refrigerant from a radiator 4 is fed in the receiver 2 with a pressure. The gas liquid separator 3 and the refrigerant heater 1 form a natural cycle and a heat conveyance passage, formed with the gas liquid separator 3, the radiator 4, a first check valve 7, the receiver 2, and the second check valved 9, forms an intermittent motion cycle in which a liquid refrigerant is fed to the gas liquid separator 3 at the opening and closing period of the on-off valve 13. An amount of a refrigerant flowing in the receiver 2 is balanced with an amount of a refrigerant vaporized from a refrigerant heater 1 in a way that the opening time of the on-off valve 13 is specified and an opening and closing period is changed by reducing a closing time according to the increase in temperature (a pressure) of a cycle. |
