EVAPORATOR IN AMMONIUM ABSORBING REFRIGERATING MACHINE

PROBLEM TO BE SOLVED: To provide an evaporator in an ammonium absorbing refrigerating machine, which is capable of being simplified in the manufacturing process of the same. SOLUTION: An evaporator 1 is provided in the vessel main body 2 of the same with a liquid reservoir unit 3 arranged in the lower part of the vessel reserve ammonium liquid, a heat exchanging unit 4 arranged in the intermediate part of the vessel to effect heat exchange between ammonium and a fluid to be cooled, and a vapor reservoir unit 5 arranged in the upper part of the vessel to reserve ammonium vapor. In this case, a tubular body 11, whose one end is connected to an ammonium liquid transfer pipe 6 from a condenser and whose other end is opened in the liquid reservoir unit 3 through the vapor reservoir unit 5 and the heat exchanging unit 4, is arranged in the vessel main body 2. A part of the tubular body 11 which is positioned in the vapor reservoir unit 5 is utilized for a super-cooling unit 31 for super-cooling the ammonium liquid, and the other part of the tubular body 11 which is positioned in the heat exchanging unit 4 is utilized for a refrigerant re-producing unit 23 to heat the ammonium liquid coming from the liquid reservoir unit 3 for reproduction of ammonium.