Distributor for falling-film evaporator of low-pressure refrigerating system

The invention relates to a distributor for a falling-film evaporator of a low-pressure refrigerating system. The distributor comprises a gas-liquid separator, a channel assembly and a dripping plate; the gas-liquid separator comprises a gas-liquid separation cavity formed by matching of a first bottom plate and a first top plate, the first top plate comprises a liquid inlet plate and a gas storage plate which are connected, a liquid inlet is formed in the liquid inlet plate, a gas outlet is formed in the gas storage plate, the gas outlet is communicated with a gas guide cover, and a liquid outlet is formed in the first bottom plate; the channel assembly comprises a second top plate and a second bottom plate which are matched to form a sealed cavity, the second top plate is provided with a liquid inlet pipe and a plurality of liquid drainage holes, the liquid inlet pipe corresponds to the liquid outlet, and the plurality of liquid drainage holes are formed in the length direction of the second top plate; and t