STEAM-JET EJECTOR REFRIGERATING MACHINE Russian patent published in 2001 - IPC

FIELD: refrigerating engineering. SUBSTANCE: heat formed during burning of fuel in furnace of steam generator is transferred to water which is evaporated forming steam. Steam from steam generator enters ejector through steam superheater sucking cold vapor from refrigerator. Then mixture of hot and cold steam enter e steam-and-water pump preheater. Water from feed tank is simultaneously admitted to water-and- steam pump-preheater where steam and water are intensively mixed, thus resulting in preheated condensate at high temperature and pressure. Condensate is fed to steam generator, feed tank and upper portion of refrigerator. In refrigerator condensate is partially evaporated and remaining part of condensate is cooled. This part of condensate is circulated through closed cold water loop passing through cold consumer. Check valves are fitted where required for control of motion of steam between steam superheater, steam generator and steam-and-water pump- preheater. EFFECT: increased refrigerating effect of machine due to reduced power requirements and reduced mass and overall dimensions. 1 dwg