JPS62195053U

JPS62195053U -

Info

Publication number: JPS62195053U
Application number: JP8260186U
Authority: JP
Priority date: 1986-05-30
Filing date: 1986-05-30
Publication date: 1987-12-11

Description

[Brief explanation of the drawing]

第１図は本案装置のブロツク図、第２図は低温
機における高圧冷媒域の冷媒圧力の変化を示すグ
ラフ、第３図は本考案の他の実施例を示すブロツ
ク図、第４図は従来装置のブロツク図である。１……圧縮機、２……凝縮機、３……温度式自
動膨張弁、４……凝縮機、５……圧縮機、６……
油分離器、７……温度式自動膨張弁、８……冷却
器、１０……手動式膨張弁、１１……制御器、１
２，１３……電磁弁。なお、図中、同一符号は同
一、又は相当部分を示す。 Fig. 1 is a block diagram of the present device, Fig. 2 is a graph showing changes in refrigerant pressure in the high-pressure refrigerant region of a low-temperature machine, Fig. 3 is a block diagram showing another embodiment of the present invention, and Fig. 4 is a conventional one. FIG. 2 is a block diagram of the device. 1... Compressor, 2... Condenser, 3... Temperature automatic expansion valve, 4... Condenser, 5... Compressor, 6...
Oil separator, 7... Temperature type automatic expansion valve, 8... Cooler, 10... Manual expansion valve, 11... Controller, 1
2,13... Solenoid valve. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

補正昭６１．１１．２０図面の簡単な説明を次のように補正する。明細書の第１０頁１０行目に「２……凝縮機」
とあるを「２……凝縮器」と訂正する。明細書の第１０頁１１行目に「４……凝縮機」
とあるを「４……凝縮器」と訂正する。Amendment November 20, 1981 The brief description of the drawing is amended as follows. On page 10, line 10 of the specification, "2... condenser"
Correct the statement to read "2... condenser." On page 10, line 11 of the specification, "4... condenser"
Correct the statement to read "4... condenser."

Claims

[Scope of utility model registration request]

In a binary refrigeration system, each refrigerant cycle has a compressor, a high temperature machine including a thermostatic automatic expansion valve, and a low temperature machine, and the refrigerant in the low temperature machine is cooled by the refrigerant in the high temperature machine. An auxiliary expansion valve that is always set and maintained at a predetermined opening degree is provided in parallel with the temperature-type automatic expansion valve, and the pressure in the high-pressure refrigerant area of the low-temperature machine is detected, and when the pressure falls below a predetermined value, the high-temperature machine A binary refrigeration system characterized by comprising a controller that issues a signal to start capacity control of a compressor.