JPS62124451U

JPS62124451U -

Info

Publication number: JPS62124451U
Application number: JP1348286U
Authority: JP
Priority date: 1986-01-31
Filing date: 1986-01-31
Publication date: 1987-08-07

Description

[Brief explanation of the drawing]

第１図は本考案に係る冷凍装置の一実施例を示
す系統図、第２図は第１図の冷凍装置のパルス形
膨脹弁のパルス信号と負荷との関係を示す線図、
第３図から第６図は従来例を示し、第３図は概略
構成図、第４図は熱電気形膨脹弁の印加電圧と弁
解度との関係を示す線図、第５図は冷凍装置の負
荷と膨脹弁駆動用増幅器のアンプ出力との関係を
示す線図、第６図は冷凍装置の負荷と熱電気形膨
脹弁および容量制御弁の開度との関係を示す線図
である。１……圧縮機、２……凝縮器、３……熱電気形
膨脹弁、３ａ……パルス形膨脹弁、４……蒸発器
、４ａ……負荷入口管、４ｂ……負荷出口管、７
……容量制御弁、８……温度検出器、１２……熱
量計算機、１３……信号変換器、１４……パルス
発信器、１５……負荷変動検出器。 FIG. 1 is a system diagram showing an embodiment of the refrigeration system according to the present invention, and FIG. 2 is a diagram showing the relationship between the pulse signal of the pulse type expansion valve of the refrigeration system shown in FIG. 1 and the load.
Figures 3 to 6 show conventional examples, Figure 3 is a schematic configuration diagram, Figure 4 is a diagram showing the relationship between the applied voltage of a thermoelectric expansion valve and the degree of deflation, and Figure 5 is a refrigeration system. FIG. 6 is a diagram showing the relationship between the load of the refrigeration system and the opening degree of the thermoelectric expansion valve and the capacity control valve. DESCRIPTION OF SYMBOLS 1... Compressor, 2... Condenser, 3... Thermoelectric expansion valve, 3a... Pulse type expansion valve, 4... Evaporator, 4a... Load inlet pipe, 4b... Load outlet pipe, 7
... Capacity control valve, 8 ... Temperature detector, 12 ... Calorie amount calculator, 13 ... Signal converter, 14 ... Pulse transmitter, 15 ... Load fluctuation detector.

Claims

[Scope of utility model registration request]

A compressor, a condenser that liquefies refrigerant from the compressor, an evaporator that evaporates the liquefied refrigerant from the condenser, and controls the amount of liquefied refrigerant supplied from the condenser to the evaporator. A pulse expansion valve, a bypass pipe that directly sends refrigerant from the compressor to the evaporator, a capacity control valve provided in the middle of this bypass pipe, and detecting load fluctuations in a load inlet pipe from the evaporator. a load fluctuation detector to which the output signal from the signal converter is input; a heat amount calculator to which the signal from the load fluctuation detector is input; a signal converter to which the output signal of the heat amount calculator is input; A refrigeration system characterized by comprising a pulse transmitter that transmits an output signal to an expansion valve.