JPS63113859U

JPS63113859U -

Info

Publication number: JPS63113859U
Application number: JP632687U
Authority: JP
Priority date: 1987-01-19
Filing date: 1987-01-19
Publication date: 1988-07-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による冷凍装置を
示す系統図、第２図は従来の冷凍装置を示す系統
図である。１は圧縮機、２は凝縮器、３は受液器、４は膨
張弁、５は蒸発器、６は圧力検知手段、７は逆止
弁、８は電磁弁、９はバイパス管路。なお、図中
、同一符号は同一または相当部分を示す。 FIG. 1 is a system diagram showing a refrigeration system according to an embodiment of this invention, and FIG. 2 is a system diagram showing a conventional refrigeration system. 1 is a compressor, 2 is a condenser, 3 is a liquid receiver, 4 is an expansion valve, 5 is an evaporator, 6 is a pressure detection means, 7 is a check valve, 8 is a solenoid valve, and 9 is a bypass pipe. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

a compressor; a condenser in which refrigerant gas compressed by the compressor is sent through a pipe to cool and liquefy;
a liquid receiver that receives the liquid refrigerant from the condenser; an expansion valve that receives the liquid refrigerant from the liquid receiver and reduces the pressure; an evaporator that receives the liquid refrigerant that has been reduced in pressure by the expansion valve and evaporates it into gas; A refrigeration system including a pipe line for sucking refrigerant gas from the evaporator into the compressor, wherein a pressure detection means for detecting the discharge pressure of the compressor is provided in the pipe line leading from the compressor to the condenser, and a liquid receiver is provided. A bypass pipeline provided with a solenoid valve is formed between the condenser and the compressor, and when the condenser is located below the receiver, a check valve is provided in the pipeline between the condenser and the receiver, and the A refrigeration system characterized in that a change in discharge pressure from a compressor is detected by a pressure detection stage, and the opening and closing of a bypass pipe is controlled by the electromagnetic valve.