Manufacturing method of gas-liquid separation system

The invention discloses a gas-liquid separation system, which includes a compressor, a condenser, a first throttling device, an evaporator, and a gas-liquid separator connected in sequence; the gas-liquid separator includes a container body, a fluid inlet pipe, a gas outlet pipe and The fluid outlet pipe used to transport liquid from the container body to the outside; the fluid inlet pipe is connected to the evaporator, the gas outlet pipe is connected to the air return port of the compressor, and the fluid outlet pipe is connected to the air return port of the compressor. The fluid outlet pipe can be connected and closed. The fluid outlet pipe is also connected to the heating part, and the heating part can be switched between the heating state and the non-heating state; at the initial startup, the fluid outlet pipe is switched to the closed state, and the heating part stops; during operation , The fluid outlet pipe is switched to a connected state, and the heating part is in a heating state or a non-heating state according to the degree of superheat in the container body. According to the different working conditions of the compressor, adjust the state of the fluid outlet pipe and the heating part, so as to prevent the liquid refrigerant from entering the compressor to cause liquid shock and ensure lubrication at the same time

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