JPS62160272U

JPS62160272U -

Info

Publication number: JPS62160272U
Application number: JP4649986U
Authority: JP
Priority date: 1986-03-29
Filing date: 1986-03-29
Publication date: 1987-10-12

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係る冷水供給ユニツ
ト全体の配管系統図、第２図はその要部の構成図
である。１……圧縮機、２……凝縮器、３……膨張弁、
４……冷却器、５……冷水循環管路、７……バイ
パス管路、８……開閉弁、９……定圧膨張弁、１
１……冷水温検出器、２１……制御装置。 FIG. 1 is a piping system diagram of the entire cold water supply unit according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of its main parts. 1... Compressor, 2... Condenser, 3... Expansion valve,
4...Cooler, 5...Cold water circulation pipe, 7...Bypass pipe, 8...Opening/closing valve, 9...Constant pressure expansion valve, 1
1... Cold water temperature detector, 21... Control device.

補正昭６１．１１．１４実用新案登録請求の範囲を次のように補正する
。Amendment November 14, 1981 The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】圧縮機１、凝縮器２、膨張機構３、及び冷却器
４を冷媒の流れ方向に沿つて順次配置接続し、前
記冷却器４での冷媒―水熱交換により生成された
冷水の強制循環管路５を備えている冷凍機による
冷水供給ユニツトにおいて、前記圧縮機１から凝
縮器２に至る高圧冷媒ガス管６から分岐させたホ
ツトガスのバイパス管路７に開閉弁８及び定圧膨
張弁９を介装し、該バイパス管路７の他端を前記
膨張機構３下流の冷媒液管１０に合流接続し、前
記定圧膨張弁９の設定圧値を前記冷却器４の全負
荷近辺に対応する値に設定するとともに、前記強
制循環管路５における冷水供給始端部の冷水温度
を検出する冷水温検出器１１による検出結果に基
づいて前記開閉弁８を開閉制御する制御装置２１
を設けたことを特徴とする冷凍機による冷水供給
ユニツトの水温制御装置。[Claims for Utility Model Registration] A compressor 1, a condenser 2, an expansion mechanism 3, and a cooler 4 are arranged and connected in sequence along the flow direction of a refrigerant, and the refrigerant is generated by water heat exchange in the cooler 4. In a chilled water supply unit for a refrigerator equipped with a forced circulation pipe 5 for cold water, an on-off valve 8 is installed in a hot gas bypass pipe 7 branched from a high-pressure refrigerant gas pipe 6 extending from the compressor 1 to the condenser 2. and a constant pressure expansion valve 9, the other end of the bypass pipe 7 is connected to the refrigerant liquid pipe 10 downstream of the expansion mechanism 3, and the set pressure value of the constant pressure expansion valve 9 is set to the entire temperature of the cooler 4. a control device 21 that controls the opening and closing of the on-off valve 8 based on a detection result by a cold water temperature detector 11 that detects the cold water temperature at the cold water supply start end in the forced circulation pipe 5 while setting the value to a value corresponding to the vicinity of the load;
1. A water temperature control device for a chilled water supply unit using a refrigerator, characterized in that a chiller is provided with a chilled water supply unit.

Claims

[Scope of utility model registration request]

A compressor 1, a condenser 2, an expansion mechanism 3, and a cooler 4 are sequentially arranged and connected along the flow direction of the refrigerant, and a forced circulation pipe for cold water generated by refrigerant-water heat exchange in the cooler 4 is provided. 5, an on-off valve 8 and a constant pressure expansion valve 9 are interposed in a hot gas bypass line 7 branched from a high-pressure refrigerant gas pipe 6 leading from the compressor 1 to the condenser 2. Then, the other end of the bypass pipe 7 is connected to the refrigerant liquid pipe 10 downstream of the expansion mechanism 3, and the set pressure value of the constant pressure expansion valve 9 is set to a value corresponding to around the maximum cooling load of the cooler 4. Along with setting,
A refrigerator comprising a control device 21 that controls opening and closing of the on-off valve 8 based on a detection result by a cold water temperature detector 11 that detects the temperature of cold water at the starting end of the cold water supply in the forced circulation pipe 5. Water temperature control device for chilled water supply unit.