CONTROL METHOD OF CO2 REFRIGERATION DEVICE PERFORMING TWO-STAGE COMPRESSION

PROBLEM TO BE SOLVED: To provide an efficient and inexpensive control method of a CO2refrigeration device. SOLUTION: The following four functions (a)-(d) are provided in combination or independently, namely: (a) degree of supercooling of main flows in supercoolers; (b) degree of desired overheating...

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Bibliographische Detailangaben
1. Verfasser:	MOSEMANN DIETER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an efficient and inexpensive control method of a CO2refrigeration device. SOLUTION: The following four functions (a)-(d) are provided in combination or independently, namely: (a) degree of supercooling of main flows in supercoolers; (b) degree of desired overheating in feelers that are portions of controllable throttle valves (34, 35, 36) disposed at supercooler outlets of split flows; (c) change in intermediate pressure in a secondary flowing route by regulated release or closure of pressure control valves (42, 43, 44) disposed downstream of each of the supercoolers in pipelines for guiding the split flows; and (d) change in compression final pressure on an upper stage. COPYRIGHT: (C)2009,JPO&INPIT