JPS5833964U - Refrigeration equipment - Google Patents
Refrigeration equipmentInfo
- Publication number
- JPS5833964U JPS5833964U JP12758281U JP12758281U JPS5833964U JP S5833964 U JPS5833964 U JP S5833964U JP 12758281 U JP12758281 U JP 12758281U JP 12758281 U JP12758281 U JP 12758281U JP S5833964 U JPS5833964 U JP S5833964U
- Authority
- JP
- Japan
- Prior art keywords
- solenoid valve
- pressure
- differential pressure
- pipe
- defrost
- 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.)
- Pending
Links
Landscapes
- Defrosting Systems (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来例を示す冷媒回路図、第２図は本考案実施
例を示す冷媒回路図、第３図はその電気回路図、第４図
は他の実施例を示す電気回路図である。
１・・・・・・圧縮機、３・・・・・・膨張機構、４・
・・・・・蒸発器、５・・・・・・冷媒用電磁弁、６・
・・・・・主電磁弁、７・・・・・・ホットガスバイパ
ス管、８・・・・・・補助電磁弁、９・・・・・・補助
バイパス管、１０・・・・・・差圧開閉弁、１１・・・
・・・高圧ガス管、１３・・・・・・低圧液管。Fig. 1 is a refrigerant circuit diagram showing a conventional example, Fig. 2 is a refrigerant circuit diagram showing an embodiment of the present invention, Fig. 3 is an electric circuit diagram thereof, and Fig. 4 is an electric circuit diagram showing another embodiment. . 1... Compressor, 3... Expansion mechanism, 4.
... Evaporator, 5 ... Refrigerant solenoid valve, 6.
...Main solenoid valve, 7...Hot gas bypass pipe, 8...Auxiliary solenoid valve, 9...Auxiliary bypass pipe, 10... Differential pressure on/off valve, 11...
...High pressure gas pipe, 13...Low pressure liquid pipe.
Claims (1)
３と蒸発器４との間を結ぶ低圧液管１３との間に、デフ
ロスト時開く主電磁弁６を介装したホットガスバイパス
管７を接続してデフロスト回路を形成すると共に、デフ
ロスト回路じる冷媒用電磁弁５を前記膨張機構３の入口
側に設け、前記圧縮機１の吐出ガス冷媒により前記蒸発
器４に付着の霜を除霜するごとくした冷凍装置において
、前記主電磁弁６よりも容量の小さい補助電磁弁８を介
装した補助バイパス管９を前記主電磁弁６と並列に接続
すると共に、冷凍装置の高圧および低圧冷媒の圧力をそ
れぞれ検知してそれらの差圧により作動する差圧開閉器
１０を設け、デフロスト時前記差圧が所定値以上のとき
前記補助電磁弁８のみを、所定値未満のとき前記主電磁
弁６を開くごとくしたことを特徴とする冷凍装置。A hot gas bypass in which a main solenoid valve 6 that opens during defrost is interposed between a high-pressure gas pipe 11 connected to the discharge side of the compressor 1 and a low-pressure liquid pipe 13 connecting the expansion mechanism 3 and the evaporator 4. A defrost circuit is formed by connecting the pipe 7, and a refrigerant electromagnetic valve 5 for the defrost circuit is provided on the inlet side of the expansion mechanism 3, so that the refrigerant gas discharged from the compressor 1 removes frost deposited on the evaporator 4. In a refrigeration system designed to defrost a refrigerator, an auxiliary bypass pipe 9 equipped with an auxiliary solenoid valve 8 having a smaller capacity than the main solenoid valve 6 is connected in parallel with the main solenoid valve 6, and the high pressure and A differential pressure switch 10 is provided that detects the pressure of each low-pressure refrigerant and operates based on the differential pressure between them. During defrosting, when the differential pressure is above a predetermined value, only the auxiliary solenoid valve 8 is activated, and when the differential pressure is less than a predetermined value, the main solenoid valve 8 is activated. A refrigeration device characterized in that a solenoid valve 6 is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758281U JPS5833964U (en) | 1981-08-27 | 1981-08-27 | Refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12758281U JPS5833964U (en) | 1981-08-27 | 1981-08-27 | Refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5833964U true JPS5833964U (en) | 1983-03-05 |
Family
ID=29921307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12758281U Pending JPS5833964U (en) | 1981-08-27 | 1981-08-27 | Refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5833964U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257036A (en) * | 1988-12-08 | 1990-10-17 | Daikin Ind Ltd | Cold/hot impact tester |
| WO2017221287A1 (en) * | 2016-06-20 | 2017-12-28 | 三菱電機株式会社 | Cooling device |
-
1981
- 1981-08-27 JP JP12758281U patent/JPS5833964U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257036A (en) * | 1988-12-08 | 1990-10-17 | Daikin Ind Ltd | Cold/hot impact tester |
| WO2017221287A1 (en) * | 2016-06-20 | 2017-12-28 | 三菱電機株式会社 | Cooling device |
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