JPH02147762U - - Google Patents
Info
- Publication number
- JPH02147762U JPH02147762U JP5577289U JP5577289U JPH02147762U JP H02147762 U JPH02147762 U JP H02147762U JP 5577289 U JP5577289 U JP 5577289U JP 5577289 U JP5577289 U JP 5577289U JP H02147762 U JPH02147762 U JP H02147762U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- compressors
- branch
- main pipe
- oil return
- 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
- 238000005057 refrigeration Methods 0.000 claims description 9
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
【図面の簡単な説明】
第１図は本考案の第１の実施例を示す部分的正
面図、第２図は本考案の第２の実施例を示す部分
的正面図、第３図は本考案の第３の実施例を示す
部分的正面図、第４図は本考案の第４の実施例を
示す部分的正面図、第５図は従来の冷凍装置の冷
媒回路図である。
１，２…圧縮機、９…吸入側主管、１１，２１
…分岐吸入管、１０…吐出側主管、１２，２２…
分岐吐出管、３…油分離器、１３，１３１，１３
２，１５１，１５２，１７１，１７２…油戻し管
、１１１，２１１…トラツプ、１４１，１４２，
１６１，１６２，１８１，１８２…開閉弁。[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a partial front view showing the first embodiment of the present invention, Fig. 2 is a partial front view showing the second embodiment of the present invention, and Fig. 3 is a partial front view showing the first embodiment of the present invention. FIG. 4 is a partial front view showing the third embodiment of the invention, FIG. 4 is a partial front view showing the fourth embodiment of the invention, and FIG. 5 is a refrigerant circuit diagram of a conventional refrigeration system. 1, 2... Compressor, 9... Suction side main pipe, 11, 21
...Branch suction pipe, 10...Discharge side main pipe, 12, 22...
Branch discharge pipe, 3... Oil separator, 13, 131, 13
2,151,152,171,172...Oil return pipe, 111,211...Trap, 141,142,
161, 162, 181, 182...Opening/closing valve.
Claims (1)
が吸入側主管より分岐した分岐吸入管及び吐出側
主管より分岐した分岐吐出管を介して冷媒回路内
に並列に接続され、上記吐出側主管に介装された
油分離器で分離された油が油戻し管を経て上記複
数台の圧縮機にそれぞれ戻される冷凍装置におい
て、上記油戻し管の出口端を上記吸入側主管に接
続するとともに上記各分岐吸入管に逆Ｕ字状のト
ラツプを介装したことを特徴とする冷凍装置。 (2) 同時又は個別に運転される複数台の圧縮機
が吸入側主管より分岐した分岐吸入管及び吐出側
主管より分岐した分岐吐出管を介して冷媒回路内
に並列に接続され、上記吐出側主管に介装された
油分離器で分離された油が油戻し管を経て上記複
数台の圧縮機にそれぞれ戻される冷凍装置におい
て、上記油戻し管の出口端を上記各分岐吸入管に
接続するとともにこれら油戻し管に上記各圧縮機
の運転・停止に対応して開・閉される開閉弁を介
装したことを特徴とする冷凍装置。 (3) 同時又は個別に運転される複数台の圧縮機
が吸入側主管より分岐した分岐吸入管及び吐出側
主管より分岐した分岐吐出管を介して冷媒回路内
に並列に接続され、上記吐出側主管に介装された
油分離器で分離された油が油戻し管を経て上記複
数台の圧縮機にそれぞれ戻される冷凍装置におい
て、上記油戻し管の出口端を上記複数台の各圧縮
機の貯油槽に直接連通させるとともにこれら油戻
し管に上記各圧縮機の運転・停止に対応して開・
閉される開閉弁を介装したことを特徴とする冷凍
装置。 (4) 同時又は個別に運転される複数台の圧縮機
が吸入側主管より分岐した分岐吸入管及び吐出側
主管より分岐した分岐吐出管を介して冷媒回路内
に並列に接続され、上記吐出側主管に介装された
油分離器で分離された油が油戻し管を経て上記複
数台の圧縮機にそれぞれ戻される冷凍装置におい
て、上記油戻し管の出口端を上記各分岐吸入管の
分岐部に近接してその上流における吸入側主管の
各分岐吸入管側の側壁に連通連結するとともにこ
れら油戻し管に上記各圧縮機の運転・停止に対応
して開・閉される開閉弁を介装したことを特徴と
する冷凍装置。[Scope of Claim for Utility Model Registration] (1) Multiple compressors operated simultaneously or individually are connected to a refrigerant circuit through a branch suction pipe branched from the main pipe on the suction side and a branch discharge pipe branched from the main pipe on the discharge side. In a refrigeration system that is connected in parallel and in which oil separated by an oil separator installed in the main pipe on the discharge side is returned to each of the plurality of compressors via an oil return pipe, the outlet end of the oil return pipe is A refrigeration system characterized in that an inverted U-shaped trap is connected to the suction side main pipe and is interposed in each of the branch suction pipes. (2) A plurality of compressors operated simultaneously or individually are connected in parallel in the refrigerant circuit through a branch suction pipe branched from the main pipe on the suction side and a branch discharge pipe branched from the main pipe on the discharge side, and In a refrigeration system in which oil separated by an oil separator installed in a main pipe is returned to each of the plurality of compressors via an oil return pipe, an outlet end of the oil return pipe is connected to each of the branch suction pipes. A refrigeration system characterized in that these oil return pipes are provided with on-off valves that are opened and closed in accordance with the operation and stop of each of the compressors. (3) A plurality of compressors operated simultaneously or individually are connected in parallel in the refrigerant circuit via a branch suction pipe branched from the main pipe on the suction side and a branch discharge pipe branched from the main pipe on the discharge side, and In a refrigeration system in which oil separated by an oil separator installed in a main pipe is returned to each of the plurality of compressors via an oil return pipe, the outlet end of the oil return pipe is connected to each of the plurality of compressors. In addition to communicating directly with the oil storage tank, these oil return pipes are connected to open and shut pipes corresponding to the operation and stop of each of the above compressors.
A refrigeration system characterized by being equipped with an on-off valve that is closed. (4) A plurality of compressors operated simultaneously or individually are connected in parallel in the refrigerant circuit through a branch suction pipe branched from the main pipe on the suction side and a branch discharge pipe branched from the main pipe on the discharge side, and In a refrigeration system in which oil separated by an oil separator installed in a main pipe is returned to the plurality of compressors through oil return pipes, the outlet end of the oil return pipe is connected to a branch of each branch suction pipe. The oil return pipe is connected to the side wall of each branch suction pipe of the suction side main pipe upstream thereof, and these oil return pipes are equipped with on-off valves that open and close in response to the operation and stop of each of the above compressors. A refrigeration device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989055772U JPH0725565Y2 (en) | 1989-05-17 | 1989-05-17 | Refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989055772U JPH0725565Y2 (en) | 1989-05-17 | 1989-05-17 | Refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02147762U true JPH02147762U (en) | 1990-12-14 |
| JPH0725565Y2 JPH0725565Y2 (en) | 1995-06-07 |
Family
ID=31579020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989055772U Expired - Fee Related JPH0725565Y2 (en) | 1989-05-17 | 1989-05-17 | Refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725565Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015182587A1 (en) * | 2014-05-28 | 2015-12-03 | ダイキン工業株式会社 | Freezer device |
| JP2017150706A (en) * | 2016-02-23 | 2017-08-31 | ダイキン工業株式会社 | Refrigeration equipment |
| WO2023135731A1 (en) * | 2022-01-14 | 2023-07-20 | 三菱電機株式会社 | Compressor suction and oil-return pipe, scroll compressor, and refrigeration cycle device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51161658U (en) * | 1975-06-17 | 1976-12-23 | ||
| JPS5949852U (en) * | 1982-09-27 | 1984-04-02 | 三菱重工業株式会社 | Refrigerator oil return device |
| JPS6273043A (en) * | 1985-09-24 | 1987-04-03 | ダイキン工業株式会社 | Refrigerator |
-
1989
- 1989-05-17 JP JP1989055772U patent/JPH0725565Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51161658U (en) * | 1975-06-17 | 1976-12-23 | ||
| JPS5949852U (en) * | 1982-09-27 | 1984-04-02 | 三菱重工業株式会社 | Refrigerator oil return device |
| JPS6273043A (en) * | 1985-09-24 | 1987-04-03 | ダイキン工業株式会社 | Refrigerator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015182587A1 (en) * | 2014-05-28 | 2015-12-03 | ダイキン工業株式会社 | Freezer device |
| JP2015224830A (en) * | 2014-05-28 | 2015-12-14 | ダイキン工業株式会社 | Refrigeration device |
| JP2017150706A (en) * | 2016-02-23 | 2017-08-31 | ダイキン工業株式会社 | Refrigeration equipment |
| WO2023135731A1 (en) * | 2022-01-14 | 2023-07-20 | 三菱電機株式会社 | Compressor suction and oil-return pipe, scroll compressor, and refrigeration cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0725565Y2 (en) | 1995-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2652429A1 (en) | Drain valve assembly for use in an air compressor system | |
| JPH02147212U (en) | ||
| JPH01158022U (en) | ||
| JPH0740154Y2 (en) | Drain discharge device | |
| JPH01153467U (en) | ||
| JPH0725565Y2 (en) | Refrigeration equipment | |
| JPH0474268U (en) | ||
| JPH0188352U (en) | ||
| JPS6448553U (en) | ||
| JPH0373869U (en) | ||
| JPS5912992U (en) | Condensation heat utilization equipment for refrigerators and freezers | |
| JPH0544658Y2 (en) | ||
| JPS6144122Y2 (en) | ||
| JPS58682A (en) | gas compressor suction throttle valve | |
| JPS602534Y2 (en) | Refrigeration equipment | |
| JPS6330935Y2 (en) | ||
| JPS5912513Y2 (en) | refrigeration cycle | |
| JPS6136135Y2 (en) | ||
| JPS61194186U (en) | ||
| JPS617782U (en) | refrigeration cycle | |
| JPS58103670U (en) | air conditioner | |
| JPS6310447Y2 (en) | ||
| JPH046779U (en) | ||
| JPS637239U (en) | ||
| JPS6357466U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |