REFRIGERATION CYCLE DEVICE

• Main Authors: YAMAOKA YOSHIKI, KOISHIHARA KAZUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 15.03.2024
• 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 refrigeration cycle device which can miniaturize a receiver and can reduce a heat radiation amount in the receiver.SOLUTION: A refrigeration cycle device of the present invention includes: a main refrigerant circuit 10 formed by sequentially connecting a compressor 11, a four-way valve 17, a utilization side heat exchanger 12, an economizer 13, a first expansion device 14, and a heat source side heat exchanger 15 by using refrigerant piping 16; and a bypass refrigerant circuit 20 in which a refrigerant is branched from the refrigerant piping 16 between the utilization side heat exchanger 12 and the first expansion device 14, and the branched refrigerant is decompressed by a second expansion device 21, is heat-exchanged with the refrigerant flowing in the main refrigerant circuit 10 by the economizer 13, and is merged with the refrigerant in compression of the compressor 11. A receiver 18 for storing a part of the refrigerant flowing through the refrigerant piping 16 is provided between the economizer 13 and the first expansion device 14.SELECTED DRAWING: Figure 1 【課題】レシーバを小型化できるとともにレシーバでの放熱量を低減できる冷凍サイクル装置を提供すること。【解決手段】本発明の冷凍サイクル装置は、圧縮機１１、四方弁１７、利用側熱交換器１２、エコノマイザ１３、第１膨張装置１４、及び熱源側熱交換器１５が冷媒配管１６で順次接続されて形成される主冷媒回路１０と、利用側熱交換器１２と第１膨張装置１４との間の冷媒配管１６から冷媒が分岐され、分岐された冷媒が、第２膨張装置２１により減圧された後に、エコノマイザ１３で主冷媒回路１０を流れる冷媒と熱交換され、圧縮機１１の圧縮途中の冷媒に合流されるバイパス冷媒回路２０とを備え、エコノマイザ１３と第1膨張装置１４との間に、冷媒配管１６を流れる冷媒の一部を貯留するレシーバ１８を設けたことを特徴とする。【選択図】図１