JPS6435371U - - Google Patents
Info
- Publication number
- JPS6435371U JPS6435371U JP12933687U JP12933687U JPS6435371U JP S6435371 U JPS6435371 U JP S6435371U JP 12933687 U JP12933687 U JP 12933687U JP 12933687 U JP12933687 U JP 12933687U JP S6435371 U JPS6435371 U JP S6435371U
- Authority
- JP
- Japan
- Prior art keywords
- side port
- evaporator
- refrigerant circuit
- liquid pipe
- during
- 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
- 239000007788 liquid Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims 7
- 238000005057 refrigeration Methods 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Defrosting Systems (AREA)
Description
図は本考案の実施例に係る装置回路図である。
１……圧縮機、２……凝縮器、３Ａ……第１電
動弁、３Ｂ……第２電動弁、４Ａ……第１蒸発器
、４Ｂ……第２蒸発器、５Ａ……第１液管、５Ｂ
……第２液管、６Ａ……第１三方弁、６Ｂ……第
２三方弁、７……デフロスト用電動弁。
The figure is a device circuit diagram according to an embodiment of the present invention. 1... Compressor, 2... Condenser, 3A... First electric valve, 3B... Second electric valve, 4A... First evaporator, 4B... Second evaporator, 5A... First liquid tube, 5B
...Second liquid pipe, 6A...First three-way valve, 6B...Second three-way valve, 7...Electric defrost valve.
Claims (1)
冷媒回路を機械室側に設け、冷凍運転時に開弁さ
せる第１電動弁３Ａと第１蒸発器４Ａとを第１液
管５Ａにより直列に接続した第１利用側冷媒回路
ならびに冷凍運転時に開弁させる第２電動弁３Ｂ
と第２蒸発器４Ｂとを第２液管５Ｂにより直列に
接続した第２利用側冷媒回路を冷凍負荷側に設け
て、第１・２両利用側冷媒回路の各電動弁３Ａ，
３Ｂ入口側を前記熱源側冷媒回路の凝縮器２出口
側に夫々接続し、一方、共通側ポートと該共通側
ポートに対し冷凍運転時連通する流出側ポート及
びデフロスト運転時連通する流入側ポートとの３
つのポートを備えた２個の三方弁６Ａ，６Ｂを冷
凍負荷側に設けて、各共通側ポートを第１蒸発器
４Ａ及び第２蒸発器４Ｂの冷凍運転時出口側に、
各流入側ポートを圧縮機１の吐出ラインに、各流
出側ポートを圧縮機１の吸入側に夫々接続し、さ
らに、前記第１液管５Ａと前記第２液管５Ｂとに
亘らせて、デフロスト運転時開弁させるデフロス
ト用電動弁７を有する配管を接続せしめてなり、
前記デフロスト用電動弁７の開度を、デフロスト
運転の際蒸発器となる一方の蒸発器４Ａ又は４Ｂ
における出入口冷媒温度差に対応して制御せしめ
る如くしたことを特徴とする冷凍装置。 A heat source side refrigerant circuit in which a compressor 1 and a condenser 2 are connected in series is provided in the machine room, and a first electric valve 3A that is opened during refrigeration operation and a first evaporator 4A are connected in series through a first liquid pipe 5A. A first user-side refrigerant circuit connected to the refrigerant circuit and a second electric valve 3B that opens during refrigeration operation.
A second usage-side refrigerant circuit in which the and second evaporator 4B are connected in series by a second liquid pipe 5B is provided on the refrigeration load side, and each electric valve 3A of the first and second usage-side refrigerant circuits is
3B inlet sides are respectively connected to the condenser 2 outlet side of the heat source side refrigerant circuit, and on the other hand, the common side port and the common side port are connected to an outflow side port that communicates with the common side port during refrigeration operation, and an inflow side port that communicates with the common side port during defrost operation. No. 3
Two three-way valves 6A and 6B each having two ports are provided on the refrigeration load side, and each common side port is placed on the outlet side of the first evaporator 4A and the second evaporator 4B during refrigeration operation,
Each inlet side port is connected to the discharge line of the compressor 1, each outlet side port is connected to the suction side of the compressor 1, and further, the first liquid pipe 5A and the second liquid pipe 5B are connected. , connected to a pipe having an electric defrost valve 7 that opens during defrost operation,
The opening degree of the electric defrost valve 7 is determined by adjusting the opening degree of one of the evaporators 4A or 4B, which serves as an evaporator during defrost operation.
1. A refrigeration system characterized by being controlled in response to a temperature difference between an inlet and an outlet refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12933687U JPS6435371U (en) | 1987-08-25 | 1987-08-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12933687U JPS6435371U (en) | 1987-08-25 | 1987-08-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6435371U true JPS6435371U (en) | 1989-03-03 |
Family
ID=31383520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12933687U Pending JPS6435371U (en) | 1987-08-25 | 1987-08-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6435371U (en) |
-
1987
- 1987-08-25 JP JP12933687U patent/JPS6435371U/ja active Pending
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