JPS58155573U

JPS58155573U - Refrigeration equipment

Info

Publication number: JPS58155573U
Application number: JP5069182U
Authority: JP
Inventors: 昭治菊地; 北口　修; 孝志池田
Original assignee: 株式会社日立製作所
Priority date: 1982-04-09
Filing date: 1982-04-09
Publication date: 1983-10-18

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図に従来性なわれている除霜運転時の冷媒回路図、
第２図に本考案による除霜運転時の冷媒回路図、第３図
は受液器入口配管部の詳細を示す。１・・・圧縮機、２・・・水冷式凝縮器、３・・・受液
器、４・・・膨張弁、５・・・逆止弁、６・・・蒸発器
、７・・・容量調整弁、８．　９．　１０．　１１・・
・電磁弁、１２・・・液冷媒、１３・・・除霜時の冷媒
の流れ方向、１４・・・冷却運転時の冷媒の流れ方向、
１５・・・逆止弁。Figure 1 shows a refrigerant circuit diagram during conventional defrosting operation.
Fig. 2 shows a refrigerant circuit diagram during defrosting operation according to the present invention, and Fig. 3 shows details of the receiver inlet piping section. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Water-cooled condenser, 3... Liquid receiver, 4... Expansion valve, 5... Check valve, 6... Evaporator, 7... Capacity adjustment valve, 8. 9. 10. 11...
- Solenoid valve, 12...Liquid refrigerant, 13...Refrigerant flow direction during defrosting, 14...Refrigerant flow direction during cooling operation,
15...Check valve.

Claims

[Scope of Claim for Utility Model Registration] 1. In a refrigeration system that defrosts with hot gas and collects the refrigerant condensed in an evaporator into a receiver installed after a water-cooled condenser, the receiver inlet piping By inserting the refrigerant into the liquid receiver to an appropriate position, the liquid refrigerant collected in the liquid receiver is guided to the condenser, and the gas refrigerant is used as an evaporation heat source for the liquid refrigerant to be sucked into the compressor. A refrigeration device characterized by enabling heat exchange. 2. The refrigeration system according to claim 1 of the utility model registration claim, which is provided with a valve at the top of the pipe inserted into the liquid receiver that opens only during cooling operation and closes during defrosting operation.