REFRIGERATION CYCLE DEVICE

• Main Authors: YOKOZEKI ATSUHIKO, TSUBOE HIROAKI, UEDA HIDEYUKI, UNO MASAKI
• Format: Patent
• Language: English; Japanese
• Published: 16.03.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To determine a refrigerant amount with high accuracy.SOLUTION: A refrigeration cycle device comprises: a compressor; a condenser; an evaporator; a decompressor; a supercooling device which performs supercooling of a refrigerant condensed by the condenser; a supercooling degree calculation section 114 which estimates a reasonable supercooling degree of the refrigerant at an exit of the supercooling device on the basis of an amount of the refrigerant circulated from the compressor to the condenser and the supercooling device and calculates a determination threshold to determine the amount of the refrigerant on the basis of the estimated reasonable supercooling degree; and a refrigerant amount determination section 115 which determines the refrigerant amount by comparing a measured supercooling degree with the determination threshold.SELECTED DRAWING: Figure 2 【課題】冷媒量を高い精度で判定することを課題とする。【解決手段】冷凍サイクル装置は、圧縮機と、凝縮器と、蒸発器と、減圧器と、凝縮器で凝縮された冷媒を過冷却する過冷却器と、圧縮機から凝縮器、過冷却器の部分の冷媒循環量を基に、過冷却器の出口における冷媒の適正過冷却度を推定し、推定された適正過冷却度を基に、冷媒量を判定するための判定閾値を算出する過冷却度算出部１１４と、実測された過冷却度と、判定閾値とを比較することで、冷媒量を判定する冷媒量判定部１１５と、を有することを特徴とする。【選択図】図２