JPH0191856U - - Google Patents
Info
- Publication number
- JPH0191856U JPH0191856U JP18669987U JP18669987U JPH0191856U JP H0191856 U JPH0191856 U JP H0191856U JP 18669987 U JP18669987 U JP 18669987U JP 18669987 U JP18669987 U JP 18669987U JP H0191856 U JPH0191856 U JP H0191856U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- branch
- passage
- pressure liquid
- pressure gas
- 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
- 239000007788 liquid Substances 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Multiple-Way Valves (AREA)
Description
第１図はこの考案の冷凍装置の第１実施例を示
す冷媒回路図、第２図はその第２実施例を示す冷
媒回路図、第３図は上記第１実施例における四路
切換弁の構成を示す断面図、第４図は従来の冷凍
装置の冷媒回路図、第５図は第４図に示す冷凍装
置における三方弁を示す断面図である。
１…圧縮機、２…高圧ガス管、３…凝縮器、４
…高圧液管、５…第１分岐高圧液管、６…第２分
岐高圧液管、７…第１電動膨張弁（第１膨張弁）
、８…第２電動膨張弁（第２膨張弁）、９…第１
分岐低圧液管、１０…第２分岐低圧液管、１１…
第１蒸発器、１２…第２蒸発器、１３…第１分岐
低圧ガス管、１４…第２分岐低圧ガス管、１５…
低圧ガス管、１７…連通管、１８…第３電動膨張
弁（第３膨張弁）、１９…第１通路、２０…第２
通路、２１…第３通路、２２…第４通路、２３，
２３ａ…第１四路切換弁（四路切換弁）、２５…
第１バイパス管、２８…第２バイパス管、３０…
第１キヤピラリチユーブ（減圧機構）。
Fig. 1 is a refrigerant circuit diagram showing a first embodiment of the refrigeration system of this invention, Fig. 2 is a refrigerant circuit diagram showing a second embodiment thereof, and Fig. 3 is a diagram of a four-way switching valve in the first embodiment. FIG. 4 is a sectional view showing the configuration, FIG. 4 is a refrigerant circuit diagram of a conventional refrigeration system, and FIG. 5 is a sectional view showing a three-way valve in the refrigeration system shown in FIG. 1... Compressor, 2... High pressure gas pipe, 3... Condenser, 4
...High pressure liquid pipe, 5...First branch high pressure liquid pipe, 6...Second branch high pressure liquid pipe, 7...First electric expansion valve (first expansion valve)
, 8...Second electric expansion valve (second expansion valve), 9...First
Branch low pressure liquid pipe, 10...Second branch low pressure liquid pipe, 11...
First evaporator, 12... Second evaporator, 13... First branch low pressure gas pipe, 14... Second branch low pressure gas pipe, 15...
Low pressure gas pipe, 17...Communication pipe, 18...Third electric expansion valve (third expansion valve), 19...First passage, 20...Second
Passage, 21...Third passage, 22...Fourth passage, 23,
23a...first four-way switching valve (four-way switching valve), 25...
First bypass pipe, 28...Second bypass pipe, 30...
First capillary tube (decompression mechanism).
Claims (1)
、高圧液管４を順に接続し、この高圧液管４を第
１分岐高圧液管５と第２分岐高圧液管６とに分岐
し、上記第１分岐高圧液管５に、第１膨張弁７、
第１分岐低圧液管９、第１蒸発器１１、第１分岐
低圧ガス管１３を順に接続する一方、上記第２分
岐高圧液管６に、第２膨張弁８、第２分岐低圧液
管１０、第２蒸発器１２、第２分岐低圧ガス管１
４を順に接続し、上記第１分岐低圧ガス管１３と
第２分岐低圧ガス管１４とを低圧ガス管１５に合
流させ、この低圧ガス管１５を上記圧縮機１の吸
込側に接続し、さらに上記第１分岐低圧液管９と
第２分岐低圧液管１０とを連通管１７にて連通す
ると共に、この連通管１７には第３膨張弁１８を
介設し、一方上記第１分岐低圧ガス管１３には、
第１〜第４通路１９，２０，２１，２２を有する
四路切換弁２３，２３ａを介設すると共に、その
第２通路２０を低圧ガス管１５側に、また第３通
路２１を第１蒸発器１１側にそれぞれ接続し、こ
の四路切換弁２３，２３ａの第１通路１９には、
上記高圧ガス管２に連通させた第１バイパス管２
５を、またその第４通路２２には、上記低圧ガス
管１５に連通させた第２バイパス管２８をそれぞ
れ接続して、上記四路切換弁２３，２３ａを、上
記第２通路２０と第３通路２１、及び上記第１通
路１９と第４通路２２とがそれぞれ連通する第１
連通状態と、第１通路１９と第３通路２１、及び
第２通路２０と第４通路２２とがそれぞれ連通す
る第２連通状態とを交互に切換えるべく構成し、
さらに上記第２バイパス管２８には減圧機構３０
を介設したことを特徴とする冷凍装置。 A high pressure gas pipe 2 and a condenser 3 are installed on the discharge side of the compressor 1.
, high pressure liquid pipes 4 are connected in order, this high pressure liquid pipe 4 is branched into a first branch high pressure liquid pipe 5 and a second branch high pressure liquid pipe 6, and a first expansion valve is connected to the first branch high pressure liquid pipe 5. 7,
A first branch low-pressure liquid pipe 9, a first evaporator 11, and a first branch low-pressure gas pipe 13 are connected in order, while a second expansion valve 8 and a second branch low-pressure liquid pipe 10 are connected to the second branch high-pressure liquid pipe 6. , second evaporator 12, second branch low pressure gas pipe 1
4 in order, the first branch low pressure gas pipe 13 and the second branch low pressure gas pipe 14 are merged into the low pressure gas pipe 15, this low pressure gas pipe 15 is connected to the suction side of the compressor 1, and The first branch low-pressure liquid pipe 9 and the second branch low-pressure liquid pipe 10 are connected through a communication pipe 17, and a third expansion valve 18 is interposed in the communication pipe 17, while the first branch low-pressure liquid pipe In the tube 13,
A four-way switching valve 23, 23a having first to fourth passages 19, 20, 21, 22 is provided, and the second passage 20 is connected to the low pressure gas pipe 15 side, and the third passage 21 is connected to the first evaporator. The first passage 19 of the four-way switching valve 23, 23a is connected to the container 11 side.
A first bypass pipe 2 connected to the high pressure gas pipe 2
5, and a second bypass pipe 28 communicating with the low pressure gas pipe 15 is connected to the fourth passage 22, respectively, and the four-way switching valves 23, 23a are connected to the second passage 20 and the third passage 22. a first passageway 21, and a first passageway through which the first passageway 19 and the fourth passageway 22 communicate with each other;
configured to alternately switch between a communication state and a second communication state in which the first passage 19 and the third passage 21 and the second passage 20 and the fourth passage 22 communicate with each other,
Further, a pressure reducing mechanism 30 is provided in the second bypass pipe 28.
A refrigeration device characterized by having:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18669987U JPH0531489Y2 (en) | 1987-12-07 | 1987-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18669987U JPH0531489Y2 (en) | 1987-12-07 | 1987-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0191856U true JPH0191856U (en) | 1989-06-16 |
| JPH0531489Y2 JPH0531489Y2 (en) | 1993-08-12 |
Family
ID=31477911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18669987U Expired - Lifetime JPH0531489Y2 (en) | 1987-12-07 | 1987-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531489Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016113912A1 (en) * | 2015-01-16 | 2016-07-21 | 三菱電機株式会社 | Refrigerating and air conditioning device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4283171A4 (en) * | 2021-01-19 | 2024-03-06 | Mitsubishi Electric Corporation | Air-conditioning device |
-
1987
- 1987-12-07 JP JP18669987U patent/JPH0531489Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016113912A1 (en) * | 2015-01-16 | 2016-07-21 | 三菱電機株式会社 | Refrigerating and air conditioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531489Y2 (en) | 1993-08-12 |