JPH0389358U

JPH0389358U -

Info

Publication number: JPH0389358U
Application number: JP15178189U
Authority: JP
Priority date: 1989-12-26
Filing date: 1989-12-26
Publication date: 1991-09-11

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例によるヒートポン
プ式除湿機の冷媒回路図、第２図は従来のヒート
ポンプ式除湿機の冷媒回路図を示す。図において、１は圧縮機、２は四方弁、３は室
外側熱交換器、１４は開閉弁、５，８，１０，１
２は逆止弁、１１，１３，２０は絞り装置、７，
１９は室内側熱交換器、１５は液封配管部、１６
はレリーフ回路、１６ａはレリーフ用配管、１６
ｂはレリーフ用逆止弁である。なお、各図中、同
一符号は同一、または相当部分を示す。 FIG. 1 shows a refrigerant circuit diagram of a heat pump dehumidifier according to an embodiment of this invention, and FIG. 2 shows a refrigerant circuit diagram of a conventional heat pump dehumidifier. In the figure, 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger, 14 is an on-off valve, 5, 8, 10, 1
2 is a check valve, 11, 13, 20 is a throttle device, 7,
19 is an indoor heat exchanger, 15 is a liquid seal piping section, 16
is a relief circuit, 16a is relief piping, 16
b is a relief check valve. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A refrigerant circuit composed of a compressor, a four-way valve outdoor heat exchanger, a throttle device, and an indoor heat exchanger, an on-off valve provided in this refrigerant circuit, and a refrigerant circuit provided in the refrigerant circuit in the direction of the on-off valve. A check valve capable of supplying refrigerant only, a relief pipe branching from a liquid seal pipe connecting this check valve and the above-mentioned on-off valve and connected to the discharge pipe of the above-mentioned compressor, and a relief pipe for this relief A heat pump type refrigeration cycle comprising a relief circuit configured with a relief check valve provided in the middle of the piping and capable of allowing refrigerant to flow only from the liquid sealing tube side to the discharge piping side.