METHOD OF PRODUCTION OF COLD AND REFRIGERATING SYSTEM FOR ITS REALIZATION (VERSIONS) Russian patent published in 1995 - IPC

FIELD: refrigerating engineering. SUBSTANCE: surface dividing the working mixture circulating in generator and high-temperature gases are heated to temperature of 120 to 200 C. For realization of this method, ejector is fitted in waste gas line or generator is made in form of plate-type finned heat exchanger with passages for waste gases and working medium; relationship of heat exchange surfaces ranges between 0.05 and 0.15. Generator may be made in form of three-passage plate-type finned heat exchanger with common passages for intermediate heat-transfer agent forming closed circulating loop in them; passages for working mixture and waste gases may be separate. Line of the third passage of three-way valve connecting it with atmosphere may be provided with silence and heater and the line proper may be made in form of exhaust pipe of transport facility engine. In all three versions of the system, amount of high-temperature gases is regulated by means of thermal sensor and three-way valve; supply of these gases is discontinued in case of emergency stop of the pump; supply of gases is continued after placing this pump in operation. EFFECT: enhanced reliability. 12 cl, 8 dwg