Gas-liquid separation type evaporator

The invention discloses a gas-liquid separation type evaporator. The gas-liquid separation type evaporator comprises an inlet collecting pipe, an outlet collecting pipe above the inlet collecting pipe and a gas-liquid separation tank, a plurality of flat pipes are communicated between the inlet collecting pipe and outlet collecting pipe, the gas-liquid separation tank is communicated with an evaporator inlet for feeding two-phase refrigerant, a gas guide hole is formed in the top of the gas-liquid separation tank, the bottom of the gas-liquid separation tank is communicated with a liquid guide pipe, the liquid guide pipe is communicated with the inlet collecting pipe, the gas guide hole is communicated with the outlet collecting pipe through a gas guide pipe, and the gas guide pipe is arranged at the windward side or leeward side of the evaporator. Through arranging the gas guide pipe at the windward side or leeward side of the evaporator, the gaseous refrigerant in the gas guide pipe and the air which passes through the windward side or leeward side of the evaporator exchange heat to absorb heat to form super-heated steam, the super-heated steam enters a compressor, the liquid carry of the air suction of the compressor is effectively avoided, and meanwhile, the refrigerant entering the evaporator is fully liquid, and therefore, the refrigerant can be uniformly distributed to each flat pipe.