JPH0173661U - - Google Patents
Info
- Publication number
- JPH0173661U JPH0173661U JP1987168858U JP16885887U JPH0173661U JP H0173661 U JPH0173661 U JP H0173661U JP 1987168858 U JP1987168858 U JP 1987168858U JP 16885887 U JP16885887 U JP 16885887U JP H0173661 U JPH0173661 U JP H0173661U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- refrigerant
- pressure value
- evaporators
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
第１図はこの考案による冷凍装置の一実施例を
示す構成図、第２図は運転シヨーケースに対する
容量ダウン値、アツプ圧力値のシフト例を示す図
、第３図は従来の冷凍装置を示す構成図、第４図
は従来装置における低圧側の冷媒圧力の領域を示
す図、第５図は第１図、第３図の冷凍装置の容量
制御運転の説明図である。
図において、１ａは凝縮器、１ｂ，１ｃは圧縮
機、２ａ〜２ｃは蒸発器、９は冷凍回路、２ｇ〜
２ｉは冷媒供給量制御手段、３は圧力検出部、４
は圧力設定部、６は判別部、５は制御部である。
なお、各図中、同一符号は同一、または相当部分
を示す。
Fig. 1 is a configuration diagram showing an embodiment of the refrigeration system according to this invention, Fig. 2 is a diagram showing an example of shifting the capacity down value and up pressure value with respect to the operating case, and Fig. 3 is a configuration diagram showing the conventional refrigeration system. 4 are diagrams showing the range of refrigerant pressure on the low pressure side in the conventional apparatus, and FIG. 5 is an explanatory diagram of the capacity control operation of the refrigeration apparatus shown in FIGS. 1 and 3. In the figure, 1a is a condenser, 1b and 1c are compressors, 2a to 2c are evaporators, 9 is a refrigeration circuit, and 2g to 2c are evaporators.
2i is a refrigerant supply amount control means, 3 is a pressure detection unit, 4
6 is a pressure setting section, 6 is a discrimination section, and 5 is a control section.
In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
器及び上記各蒸発器に対応して設けられ、各蒸発
器への冷媒供給量を制御する冷媒供給量制御手段
より構成された冷媒回路、上記圧縮機の吸入圧力
を検出する圧力検出部、収束させようとする上記
低圧側の冷媒圧力の収束圧力値を設定する圧力設
定部、及び上記圧力検出部の検出圧力と上記圧力
設定部の設定圧力値とを比較し、圧縮機の容量を
制御する制御部を有するものにおいて、上記冷媒
供給量制御手段の動作により、冷媒供給状態とな
つている蒸発器の中で一番低い蒸発温度を必要と
する蒸発器の圧力値に対応して上記収束圧力値を
変化させる判定部を設けたことを特徴とする冷凍
装置。 A refrigerant circuit comprising a capacity controllable compressor, a condenser, a plurality of evaporators, and a refrigerant supply amount control means provided corresponding to each of the evaporators and controlling the amount of refrigerant supplied to each evaporator; A pressure detection section that detects the suction pressure of the compressor, a pressure setting section that sets a convergence pressure value of the refrigerant pressure on the low pressure side to be converged, and settings of the detected pressure of the pressure detection section and the pressure setting section. In a device that has a control unit that controls the capacity of the compressor by comparing the pressure value with the pressure value, the operation of the refrigerant supply amount control means requires the lowest evaporation temperature among the evaporators that are in the refrigerant supply state. A refrigeration system comprising: a determination unit that changes the convergence pressure value in accordance with a pressure value of an evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16885887U JPH065569Y2 (en) | 1987-11-04 | 1987-11-04 | Refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16885887U JPH065569Y2 (en) | 1987-11-04 | 1987-11-04 | Refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0173661U true JPH0173661U (en) | 1989-05-18 |
| JPH065569Y2 JPH065569Y2 (en) | 1994-02-09 |
Family
ID=31458401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16885887U Expired - Lifetime JPH065569Y2 (en) | 1987-11-04 | 1987-11-04 | Refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH065569Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007033002A (en) * | 2005-07-29 | 2007-02-08 | Sanden Corp | Showcase cooler |
| WO2011080800A1 (en) * | 2009-12-28 | 2011-07-07 | ダイキン工業株式会社 | Heat pump system |
-
1987
- 1987-11-04 JP JP16885887U patent/JPH065569Y2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007033002A (en) * | 2005-07-29 | 2007-02-08 | Sanden Corp | Showcase cooler |
| WO2011080800A1 (en) * | 2009-12-28 | 2011-07-07 | ダイキン工業株式会社 | Heat pump system |
| JP5498511B2 (en) * | 2009-12-28 | 2014-05-21 | ダイキン工業株式会社 | Heat pump system |
| US10184695B2 (en) | 2009-12-28 | 2019-01-22 | Daikin Industries, Ltd. | Heat pump system having controllable flow rate adjustment valves |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH065569Y2 (en) | 1994-02-09 |
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