JPH0942785A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH0942785A JPH0942785A JP7188777A JP18877795A JPH0942785A JP H0942785 A JPH0942785 A JP H0942785A JP 7188777 A JP7188777 A JP 7188777A JP 18877795 A JP18877795 A JP 18877795A JP H0942785 A JPH0942785 A JP H0942785A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- pressure
- evaporator
- condenser
- inlet side
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は空気調和装置に係り、特
に、高負荷時に圧縮機等の信頼性確保のために好適な空
気調和機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an air conditioner suitable for ensuring the reliability of a compressor or the like under high load.
【０００２】[0002]
【従来の技術】従来の技術は特開昭６１−２１７６５５
号公報に示されるように、圧縮機、凝縮器、減圧器、蒸
発器を配し、凝縮器の出口側から圧縮機の入口側にバイ
パス弁でバイパスする冷媒回路となっており、圧縮機の
吐出側に設けた高温センサにより圧縮機の吐出側の冷媒
ガス温度を検出し、高負荷時等、吐出温度が所定温度以
上になった時、バイパス弁を開くことにより液冷媒を圧
縮機の入口側に戻すことにより圧縮機の吐出冷媒ガス温
度を下げ、圧縮機の信頼性確保をするようになってい
る。2. Description of the Related Art The prior art is disclosed in JP-A-61-217655.
As shown in the publication, a compressor, a condenser, a decompressor, and an evaporator are arranged, and a refrigerant circuit bypasses from the outlet side of the condenser to the inlet side of the compressor with a bypass valve. The high temperature sensor provided on the discharge side detects the temperature of the refrigerant gas on the discharge side of the compressor, and when the discharge temperature exceeds a specified temperature, such as when the load is high, the bypass valve is opened to allow the liquid refrigerant to enter the compressor. By returning it to the side, the temperature of the refrigerant gas discharged from the compressor is lowered to ensure the reliability of the compressor.
【０００３】[0003]
【発明が解決しようとする課題】従来の技術による空気
調和機では、圧縮機の吐出側に設けた高温センサにより
圧縮機の吐出側の冷媒ガス温度を検出し、高負荷時等、
吐出温度が所定温度以上になった時、バイパス弁を開く
ことにより液冷媒を圧縮機の入口側に戻すことができる
ので、圧縮機の吐出冷媒ガス温度を下げることができ
る。In the air conditioner according to the conventional technique, the temperature of the refrigerant gas on the discharge side of the compressor is detected by the high temperature sensor provided on the discharge side of the compressor, so that when the load is high,
When the discharge temperature becomes equal to or higher than the predetermined temperature, the liquid refrigerant can be returned to the inlet side of the compressor by opening the bypass valve, so that the discharge refrigerant gas temperature of the compressor can be lowered.
【０００４】しかし、圧縮機の圧力に対する配慮はなさ
れていなかった。また、高温センサを高圧センサに変え
て、圧力に対応することは容易に考えられるが、圧縮機
の吐出圧力を下げるには相当な液冷媒を戻さなければな
らず、これによる液圧縮などに対応する等の他の手段を
要することとなる。また、高圧センサなどの検出手段も
必要とする。However, no consideration has been given to the pressure of the compressor. Also, it is easy to change the high temperature sensor to a high pressure sensor to deal with the pressure, but in order to reduce the discharge pressure of the compressor, it is necessary to return a considerable amount of liquid refrigerant, which corresponds to the liquid compression. Other means such as Further, a detection means such as a high voltage sensor is also required.
【０００５】本発明の目的は、液圧縮等に対応するため
の特別な手段を有することなく、しかも、高圧センサな
どの検出手段も必要とすることなく、圧縮機の信頼性を
確保する空気調和機を提供することにある。An object of the present invention is to provide an air conditioner that ensures the reliability of a compressor without having any special means for dealing with liquid compression or the like, and without requiring a detecting means such as a high pressure sensor. To provide a machine.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明は前記凝縮器の出口側と蒸発器の入口側とを
圧力調整弁で冷媒回路を構成する。In order to achieve the above object, the present invention constitutes a refrigerant circuit with pressure regulating valves on the outlet side of the condenser and the inlet side of the evaporator.
【０００７】[0007]
【作用】上記技術的手段による働きは下記のとおりであ
る。圧縮機の吐出側圧力が所定圧力以上になったとき、
圧力調整弁は圧力に応じて弁を開き、液冷媒が減圧器を
バイパスし蒸発器へ流れるように作用するので、圧力が
下がり、圧力による圧縮機への影響を軽減することがで
きる。 このとき、液冷媒は、蒸発器により気化されて
から、圧縮機の入口側にくるため、液冷媒による液圧縮
も防止できるので、液圧縮に対応した特別な手段も必要
としないで済む。The function of the above technical means is as follows. When the pressure on the discharge side of the compressor exceeds the specified pressure,
The pressure adjusting valve opens according to the pressure and acts so that the liquid refrigerant bypasses the pressure reducer and flows to the evaporator, so that the pressure is reduced and the influence of the pressure on the compressor can be reduced. At this time, since the liquid refrigerant comes to the inlet side of the compressor after being vaporized by the evaporator, the liquid compression by the liquid refrigerant can also be prevented, so that no special means corresponding to the liquid compression is required.
【０００８】また、圧力調整弁により圧力に応じて、弁
を開くため、圧力センサなどの検出手段も必要としない
で済む。Further, since the valve is opened according to the pressure by the pressure regulating valve, it is not necessary to use a detecting means such as a pressure sensor.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図１により説明す
る。図１は、本発明の空気調和機の冷凍サイクル系統図
である。圧縮機１の吐出側には凝縮器２を配しており、
次に、減圧器３、蒸発器４と環状を成し、圧縮機１の入
口側へとサイクルを構成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a refrigeration cycle system diagram of the air conditioner of the present invention. A condenser 2 is arranged on the discharge side of the compressor 1,
Next, the pressure reducer 3 and the evaporator 4 form a ring, and a cycle is formed toward the inlet side of the compressor 1.
【００１０】さらに、サイクルは、圧力調整弁５によ
り、凝縮器２の出口側と蒸発器４の入口側に接続され、
減圧器３をバイパスするように構成している。Further, the cycle is connected to the outlet side of the condenser 2 and the inlet side of the evaporator 4 by the pressure regulating valve 5,
The pressure reducer 3 is configured to be bypassed.
【００１１】つぎに、動作について説明する。圧力調整
弁５は凝縮器２の出口側に配しており、圧縮機１からの
吐出ガスを凝縮した後の圧力を受けている。この圧力
が、所定以上になったとき、圧力調整弁５が圧力に応じ
て、弁が開くので、液冷媒が、減圧器３をバイパスする
ので、圧力を下げることができ、高負荷時などの圧縮機
への影響を軽減することができる。Next, the operation will be described. The pressure adjusting valve 5 is arranged on the outlet side of the condenser 2 and receives the pressure after the discharge gas from the compressor 1 is condensed. When this pressure becomes equal to or higher than a predetermined value, the pressure adjusting valve 5 opens according to the pressure, so that the liquid refrigerant bypasses the pressure reducer 3, so that the pressure can be lowered, and when the load is high, etc. The influence on the compressor can be reduced.
【００１２】さらに、液冷媒は、蒸発器により気化され
てから、圧縮機の入口側にくるため、液冷媒による液圧
縮も防止できるので、液圧縮に対応した特別な手段も必
要としないで済む。また、液冷媒が、蒸発器により気化
される時、蒸発熱も奪うため、高負荷時などの圧縮機へ
の影響を軽減するとともに、冷房能力の低下を抑えるこ
ともできる。また、圧力調整弁５により圧力に応じて、
弁を開くため、圧力センサなどの検出手段も必要としな
いで済む。Furthermore, since the liquid refrigerant comes to the inlet side of the compressor after being vaporized by the evaporator, liquid compression by the liquid refrigerant can also be prevented, so that special means for liquid compression is not required. . Further, when the liquid refrigerant is vaporized by the evaporator, the heat of vaporization is also taken away, so that it is possible to reduce the influence on the compressor when the load is high and to suppress the decrease in the cooling capacity. In addition, according to the pressure by the pressure adjusting valve 5,
Since the valve is opened, no detection means such as a pressure sensor is needed.
【００１３】[0013]
【発明の効果】本発明によれば、吐出ガスの凝縮後の圧
力が、所定以上になったとき、圧力調整弁により圧力に
応じて弁が開くので、圧力を下げることができ、高負荷
時などの圧縮機への影響を軽減することができる。According to the present invention, when the pressure after the discharge gas is condensed becomes a predetermined value or more, the valve is opened according to the pressure by the pressure adjusting valve, so that the pressure can be lowered and at the time of high load. It is possible to reduce the influence on the compressor such as.
【００１４】さらに、液冷媒は、蒸発器により気化され
てから、圧縮機の入口側にくるため、液冷媒による液圧
縮も防止できるので、液圧縮に対応した特別な手段も必
要としないで済む。Further, since the liquid refrigerant comes to the inlet side of the compressor after being vaporized by the evaporator, liquid compression by the liquid refrigerant can be prevented, so that no special means for liquid compression is required. .
【００１５】また、液冷媒が、蒸発器により気化される
時、蒸発熱も奪うため、高負荷時などの圧縮機への影響
を軽減するとともに、冷房能力の低下を抑えることもで
きる。Further, when the liquid refrigerant is vaporized by the evaporator, the heat of vaporization is also taken away, so that it is possible to reduce the influence on the compressor at the time of high load and to suppress the decrease of the cooling capacity.
【００１６】また、圧力調整弁５により圧力に応じて、
弁を開くため、圧力センサなどの検出手段も必要としな
いで済む。Further, according to the pressure by the pressure adjusting valve 5,
Since the valve is opened, no detection means such as a pressure sensor is needed.
【図１】本発明の一実施例を示す冷凍サイクル系統図。FIG. 1 is a refrigeration cycle system diagram showing an embodiment of the present invention.
１…圧縮機、 ２…凝縮器、 ３…減圧器、 ４…蒸発器、 ５…圧力調整弁。 1 ... Compressor, 2 ... Condenser, 3 ... Decompressor, 4 ... Evaporator, 5 ... Pressure regulating valve.
Claims (1)
気調和機において、前記凝縮器の出口側と前記蒸発器の
入口側とを圧力調整弁で冷媒回路を構成したことを特徴
とする空気調和機。1. An air conditioner including a compressor, a condenser, a pressure reducer, and an evaporator, wherein a refrigerant circuit is constituted by pressure regulating valves on the outlet side of the condenser and the inlet side of the evaporator. And an air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7188777A JPH0942785A (en) | 1995-07-25 | 1995-07-25 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7188777A JPH0942785A (en) | 1995-07-25 | 1995-07-25 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0942785A true JPH0942785A (en) | 1997-02-14 |
Family
ID=16229614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7188777A Pending JPH0942785A (en) | 1995-07-25 | 1995-07-25 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0942785A (en) |
-
1995
- 1995-07-25 JP JP7188777A patent/JPH0942785A/en active Pending
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