JPH01131971U

JPH01131971U -

Info

Publication number: JPH01131971U
Application number: JP2592388U
Authority: JP
Priority date: 1988-03-01
Filing date: 1988-03-01
Publication date: 1989-09-07

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の１実施例を示し
、第１図は系統図、第２図はコントローラの機能
ブロツク図、第３図はサクシヨンモジユレーテイ
ングバルブの開度と冷凍サイクルの能力との関係
を示す線図、第４図はサクシヨンモジユレーテイ
ングバルブの開度と吸入圧力との関係を示す線図
である。第５図の従来の空気調和機の系統図であ
る。圧縮機……１、熱源側熱交換器……３、絞り機
構……４、利用側熱交換器……５、吐出ライン…
…２、吸入ライン……７、サクシヨンモジユレー
テイングバルブ……６、ホツトガスバイパス回路
……１２、電磁弁……１４、キヤピラリチユーブ
……１３、温度検知器……１０、圧力検知器……
１５、コントローラ……２０。 Figures 1 to 4 show one embodiment of the present invention, Figure 1 is a system diagram, Figure 2 is a functional block diagram of the controller, and Figure 3 is the opening degree of the suction modulating valve and the refrigeration cycle. FIG. 4 is a diagram showing the relationship between the opening degree of the suction modulating valve and the suction pressure. 6 is a system diagram of the conventional air conditioner shown in FIG. 5. FIG. Compressor...1, Heat source side heat exchanger...3, Throttle mechanism...4, Utilization side heat exchanger...5, Discharge line...
...2, Suction line...7, Suction modulating valve...6, Hot gas bypass circuit...12, Solenoid valve...14, Capillary tube...13, Temperature sensor...10, Pressure detector ……
15. Controller...20.

Claims

[Scope of utility model registration request]

In a refrigeration cycle consisting of a compressor, a heat source side heat exchanger, a throttle mechanism, and a user side heat exchanger, a suction modulating valve whose opening degree is adjusted according to the load is provided in the suction line of the compressor, and the compression The discharge line of the machine is connected to the refrigerant circuit between the throttle mechanism and the user-side heat exchanger through a hot gas bypass circuit, and a solenoid valve and refrigerant that are opened and closed depending on the suction pressure are connected to the hot gas bypass circuit. A refrigeration cycle characterized by being provided with a capillary tube for flow rate adjustment.