TURBOCOMPRESSOR AIR COOLING SYSTEM Russian patent published in 1997 - IPC

FIELD: refrigerating engineering; creation of optimal conditions for storage, cooling or freezing of products, articles, grounds, etc. SUBSTANCE: turbocompressor air cooling system has at least one air refrigerating machine containing the following components assembled on common frame: compressor 1 with drive 2, turbo-expander 3, control panel 9 and regenerators 4 and 5 connected in parallel. Regenerators 4 and 5 are also connected by means of regulating device 6 and 7 to outlet of compressor 1 and to inlet of turbo-expander 3 whose outlet is connected with inlet of space being cooled. System is provided with three heat-insulated collecting headers 10,11 and 12. First directed heat-insulated header 10 for cold air used for cooling spaces 8, 13 and 14 is connected with outlet of turbo-expander 3 of each air refrigerating machine by means of heat-insulated air duct 15; second reverse heat-insulated header 11 receiving cold air from spaces 8, 13 and 14 is connected with inlet of turbo-expander 3 of each air refrigerating machine by means of heat-insulated air duct 16 and second regulating device 7; inlet and outlet of each space 8, 13 and 14 being cooled are connected with direct and reverse heat-insulated cold air headers 10 and 11 by means of additional regulating devices and third regulating device 17. One outlet of first adjusting device 6 of each air refrigerating machine is connected to third heat-insulated warm air header 12 by means of heat-insulated air duct 18. One outlet of header 12 is connected with reverse heat-insulated cold air header 11 through fourth regulating device 19; its other end is connected by means of fifth regular device 20 with second inlet of air purification unit 21 connected in series with silencer 22 whose outlet is connected with inlet of compressor 1 of each air refrigerating machine and with first direct heat-insulated header 10 by means of sixth, seventh, eighth, ninth and tenth regulating devices 23,24,25,26 and 27 and with outlet of compressor 1 of each air refrigerating machine. System is also provided with temperature sensors 28 and 29 fitted at inlet of compressor 1 of each air refrigerating machine and in each space 8, 13 and 14 being cooled. Each regulating device and sensors are connected with automatic control panel 9; first inlet of air purification unit is inlet of atmospheric air supply system. EFFECT: enhanced reliability. 3 cl, 1 dwg