REFRIGERANT CIRCUIT DEVICE

• Main Authors: FUJINO HIROYUKI, NOBUYASU TOSHINORI
• Format: Patent
• Language: English; Japanese
• Published: 21.02.2019
• Subjects: 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

To provide a refrigerant circuit device capable of improving thermal efficiency of a refrigerant and supplying hot water with a higher temperature.SOLUTION: A refrigerant circuit device includes: a compressor 1 for compressing a refrigerant; a hot water condenser 2 for exchanging heat between the refrigerant compressed by the compressor 1 and water to generate hot water; and a gas-liquid heat exchanger 3 that has an inner pipe 3a and an outer pipe 3b and in which the refrigerant that has passed through the hot water condenser 2 is introduced to the inner pipe 3a. The refrigerant circuit device also includes: a supercooling heat exchanger 4 for supercooling the refrigerant that has passed through the inner pipe 3a; an expansion valve 5 for decompressing the refrigerant that has passed through the supercooling heat exchanger 4; and a cold water evaporator 6 for exchanging heat between the refrigerant decompressed by the expansion valve 5 and water to generate cold water. The refrigerant that has passed through the cold water evaporator 6 is introduced to the outer pipe 3b to undergo heat exchange with the refrigerant passing through the inner pipe 3a, and then is introduced to the compressor 1.SELECTED DRAWING: Figure 1 【課題】冷媒の熱効率を向上させ、より高い温度の温水を供給することが可能な冷媒回路装置を提供する。【解決手段】冷媒を圧縮する圧縮機１と、圧縮機１で圧縮された冷媒と水で熱交換して温水とする温水用凝縮器２と、内管３ａ及び外管３ｂを有し、内管３ａに温水用凝縮器２を通過した冷媒が導入される気液熱交換器３を有する。また、内管３ａを通過した冷媒を過冷却する過冷却熱交換器４と、過冷却熱交換器４を通過した冷媒を減圧する膨張弁５と、膨張弁５で減圧された冷媒と水で熱交換して冷水とする冷水用蒸発器６を有する。冷水用蒸発器６を通過した冷媒は、外管３ｂに導入されて内管３ａを通過する冷媒と熱交換され、その後、圧縮機１に導入される。【選択図】 図１