Patent attributes
A falling film evaporator includes a heat transfer tube bundle with a heat medium channeled to an interior, a tank with a refrigerant inflow port having the heat transfer tube bundle disposed in the tank, a liquid refrigerant sprinkling part arranged to drop liquid refrigerant onto the heat transfer tube bundle, a vapor outlet tube extending from an upper part of the tank, a cover having a portion positioned in a location inside the tank and higher than the liquid refrigerant sprinkling part, and an impeding member provided between the liquid refrigerant sprinkling part and the cover at a different position than the vapor outlet tube along the longitudinal direction of the heat transfer tubes. The impeding part impedes the flow of refrigerant that flows between the liquid refrigerant sprinkling part and the cover and flows in the longitudinal direction of the heat transfer tubes.