PURPOSE: To improve the efficiency of cold water generation by a method wherein a compression type refrigerating machine and absorption type refrigerating machine are jointly used, and the warm water of a heat recovery warm water circuit of the compression type refrigerating machine is used as a heat source for the regeneration action of the absorption type refrigerating machine.
CONSTITUTION: A heat recovery warm water circuit H passing through a heat exchanger 5 consists of a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, and the heat exchanger 5 is provided on a line leading from the compressor 1 to the condenser 2. The refrigerant gas exchanges heat with the warm water of the heat recovery warm water circuit H at the heat exchanger 5 provided on the line leading from the compressor 1 to condenser 2, so that the warm water of the heat recovery warm water circuit H is heated to a temperature higher than the condensing temperature in the condenser 2. Then, the warm water of the heat recovery warm water circuit H is led to a regenerator 8 of an absorption type refrigerating machine B to regenerate the absorbing solution. Thereby, a portion of heat amount of the refrigerant gas can be recovered and effectively used, resulting in an improvement of the efficiency of cold water generation.
NISHINO MITSUSHIGE
SANADA MASARU
INO HIROMI
YANAGI HIDEJI
MAEKAWA SEISAKUSHO KK
| JPS63143468A | 1988-06-15 |