JPS63271067A - Refrigeration cycle - Google Patents
Refrigeration cycleInfo
- Publication number
- JPS63271067A JPS63271067A JP10426287A JP10426287A JPS63271067A JP S63271067 A JPS63271067 A JP S63271067A JP 10426287 A JP10426287 A JP 10426287A JP 10426287 A JP10426287 A JP 10426287A JP S63271067 A JPS63271067 A JP S63271067A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- cooling
- solenoid valve
- refrigeration cycle
- passes
- 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
- 238000005057 refrigeration Methods 0.000 title claims description 12
- 238000001816 cooling Methods 0.000 description 22
- 239000003507 refrigerant Substances 0.000 description 22
- 238000007791 dehumidification Methods 0.000 description 14
- 238000003303 reheating Methods 0.000 description 11
- 238000009825 accumulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Saccharide Compounds (AREA)
- Fats And Perfumes (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は冷凍サイクルに係り、特に熱交換器が３個以上
あって冷媒の溜り込みの影ｑＪＩを受けやすいサイクル
に好適な冷凍サイクルに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a refrigeration cycle, and particularly to a refrigeration cycle suitable for a cycle having three or more heat exchangers and susceptible to the effect of refrigerant accumulation qJI.
従来の装ｆｔＶｉ、特願昭５９−１５１３８に記載のよ
うに、冷媒の寝込み、溜り込みに対して冷媒回収回路を
設けていた。しかし、冷媒回収している間は雰囲気温度
、湿度によっては無制御状態となったり、また、冷媒回
収を設けるための価格上昇があり、それらの配慮がされ
ていなかった。In the conventional system ftVi, as described in Japanese Patent Application No. 59-15138, a refrigerant recovery circuit was provided to prevent refrigerant stagnation and accumulation. However, while the refrigerant is being recovered, it may become uncontrolled depending on the ambient temperature and humidity, and the cost of installing refrigerant recovery may increase, so these considerations have not been taken into consideration.
上記従来技術は、冷媒の寝込み、溜り込みが発生する事
を前提として、寝込んだ、あるいは溜シ込んだ冷媒を元
へ戻す為の方法を考えているだけで初めから、寝込み、
溜り込みを発生させない構造の検討は配慮されておらず
、効率的な運転や、価格については問題があった。The above-mentioned conventional technology assumes that the refrigerant will stagnate or accumulate, and only considers a method to return the stale or accumulated refrigerant to its original state.
No consideration was given to designing a structure that would prevent accumulation, and there were problems with efficient operation and cost.
本発明の目的は、不要御所への冷媒の寝込み、溜り込み
を防止したシンプルで低価格の冷凍サイクルを供給する
ことにある。An object of the present invention is to provide a simple and low-cost refrigeration cycle that prevents refrigerant from stagnation or accumulation in unnecessary locations.
上記目的は、室外機側の涙ｉＭ器においては、冷房、再
熱除湿いづれの時にも冷媒が循環するようにし、また、
室外機の再熱器においては、冷房時は低圧になるよう電
磁弁を切換えすることにより達成される。The above purpose is to ensure that the refrigerant circulates in the outdoor unit side iM device during both cooling and reheating and dehumidification, and
In the reheater of the outdoor unit, cooling is achieved by switching the solenoid valve to a low pressure.
書熱除湿時の、冷凍サイクルは、圧縮機から室外凝縮器
そして室内ユニットへ入ってＴ形継中を経由して、再熱
除湿用電磁弁を通って、再熱器、ストレーナ、分配器を
通り再熱除湿用減圧装置へ至り、さらに、蒸発器全通っ
て再び室外ユニットへ戻り、アキューレータを経由して
圧縮機へ戻る。前述のＴ形継中の残り一方の先には冷房
用電磁弁が設けられており、再熱除湿時ＶＣは閉の状態
になっている。それによって冷房用電磁弁、ストレーナ
、分配器、キャピラリー等はすべて低圧側になるため冷
媒の擾込み、溜り込みはなくなる。During heat dehumidification, the refrigeration cycle goes from the compressor to the outdoor condenser and then to the indoor unit, passes through a T-type relay, passes through the reheat dehumidification solenoid valve, and then goes through the reheater, strainer, and distributor. It then passes through the evaporator, returns to the outdoor unit, and returns to the compressor via the accurator. A cooling solenoid valve is provided at the other end of the T-type relay, and the VC is closed during reheating and dehumidification. As a result, the cooling solenoid valve, strainer, distributor, capillary, etc. are all on the low pressure side, so there is no refrigerant stagnation or accumulation.
また、冷房時の冷凍サイクルは、圧縮機から室外縦動器
そして室内ユニットへ入ってＴ形継中を経由して、冷房
用電磁弁金通って、ストレーナ、分配器を通り冷房用減
圧装置へ至り、さらに、蒸発器を通って再び室外ユニッ
トへ戻り、アキュームレータを経由して圧縮機へ戻る。Also, during cooling, the refrigeration cycle goes from the compressor to the outdoor vertical mover and then to the indoor unit, passes through a T-type relay, passes through the cooling solenoid valve, passes through the strainer and distributor, and goes to the cooling pressure reducing device. Then, it passes through the evaporator, returns to the outdoor unit, and returns to the compressor via the accumulator.
前述のＴ形継中の残り一方の先ＶＣは再熱除湿用電磁弁
が設けられており、冷房時には閉の状態になっている。The remaining VC in the T-type relay is provided with a reheating and dehumidifying solenoid valve, which is closed during cooling.
それによって再熱除湿用電磁弁、再熱器、ストレーナ、
分配器、キャピラリー等はすべて低圧側になるため冷媒
の寝込み、溜シ込みはなくなる。It enables reheating and dehumidifying solenoid valves, reheaters, strainers,
Since the distributor, capillary, etc. are all on the low pressure side, there is no stagnation or accumulation of refrigerant.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
第１図は冷凍サイクルを示す。Figure 1 shows a refrigeration cycle.
１は圧縮機、２は室外凝縮器、３はサービスバルブ、１
４はサービスバルブ、１５はアキュームレータは室外ユ
ニット側にある。また第１図Ｖｃば記してないが、２は
室外凝縮器の冷却ファンが付いている。1 is a compressor, 2 is an outdoor condenser, 3 is a service valve, 1
4 is a service valve, and 15 is an accumulator on the outdoor unit side. Although not shown in Figure 1, Vc is equipped with a cooling fan for the outdoor condenser.
４Ｖ′ｉ室内再熱器、５は再熱除湿用電磁弁、６の冷房
用電磁弁、７Ｐまストレーナ、８Ｖ′ｉ分配器、９は再
熱除湿用減圧装置、１０はストレーナ、１１は分配器、
１２は冷房用減圧装置、１３は蒸発器で室内ユニット側
にある。また、第１図には記してないが送風ファンが付
いている。4V'i indoor reheater, 5 is a solenoid valve for reheating and dehumidification, 6 is a solenoid valve for cooling, 7P is a strainer, 8V'i is a distributor, 9 is a pressure reducing device for reheating and dehumidifying, 10 is a strainer, 11 is a distribution vessel,
12 is a pressure reducing device for cooling, and 13 is an evaporator located on the indoor unit side. Also, although not shown in Figure 1, a blower fan is included.
再熱除湿運転全行うと、まず、冷媒は１の圧縮機より２
の室外凝縮器を通過する。この時は冷却ファンは運転し
ない。さらに３の丈−ビスバルブＪ２ｒ、通って５の再
熱除湿用電磁弁を通過する。もう一方の６の冷房用′電
磁弁は閉となっているためそれから先へは流れない。５
の再熱除湿用電磁弁を通った冷媒は４の室内再熱器を通
過し、ざらＶＣ７のストレーナ、８の分配器、９の再熱
除湿用減圧装置、１３の蒸発器という順で備壊し、冷媒
は低圧低温ガスになる。その時、室内側送風機は運転を
しており、１３の蒸発器、４の室内再熱器の順で空気が
通過するため除湿された乾燥空気にすることができる。When the reheat dehumidification operation is completed, first, the refrigerant is transferred from the compressor 1 to the compressor 2.
passes through an outdoor condenser. The cooling fan does not operate at this time. Furthermore, it passes through the long-screw valve J2r numbered 3, and then passes through the reheating and dehumidification solenoid valve numbered 5. The other cooling solenoid valve 6 is closed, so no water flows beyond it. 5
The refrigerant that has passed through the solenoid valve for reheating and dehumidification passes through the indoor reheater (4), the strainer (7 VC), the distributor (8), the pressure reducing device for reheating and dehumidification (9), and the evaporator (13) in this order. , the refrigerant becomes a low-pressure low-temperature gas. At that time, the indoor blower is operating, and the air passes through the evaporator 13 and the indoor reheater 4 in that order, so that the air can be dehumidified and dry.
低圧低温ＶＣなった冷媒は、室外ユニットへ移ｍＬ、＋
４のサービスバルブ、１５のアキュームレータを経由し
て１の圧縮機へ戻る。以上のようにして冷凍サイクルを
形成する。The refrigerant that has become a low-pressure low-temperature VC is transferred to the outdoor unit (mL, +
It returns to the compressor 1 via the service valve 4 and the accumulator 15. A refrigeration cycle is formed as described above.
冷房運転を行うと、冷媒は、まず、１の圧縮機より２の
室外凝縮器全通過する。この時冷却ファンは運転してお
り、冷媒は高圧の液となる。冷媒は、さらに３のサービ
スバルブを経由して６の冷房用電磁弁を通過する。もう
一方の５の再熱除湿用電磁弁は閉となっているため、そ
れから先へは流れない。６の冷房用電磁弁を通った冷媒
Ｖ′ｉ１０のストレーナ、１１の分配器、１２の冷房用
減圧装置、１３の蒸発器という順で循壊し、冷媒Ｖｉ低
圧低温ガスになる。その時、室内送風機は運転しており
、１３の蒸発器を空気が通過することにより、冷却さｎ
た空気にすることができる。本実施例によれば、脣ｉ’
（冷房運転時に５の再熱除湿用電磁弁〜９の再熱除湿用
減圧装置間がすべて低圧側となり、冷媒の寝込み防止を
図る効果かめる。When the cooling operation is performed, the refrigerant first passes through the entire outdoor condenser from the first compressor. At this time, the cooling fan is operating and the refrigerant becomes a high-pressure liquid. The refrigerant further passes through 6 cooling solenoid valves via 3 service valves. Since the other solenoid valve 5 for reheating and dehumidification is closed, no water flows beyond that. The refrigerant V'i passes through the cooling electromagnetic valve 6 and circulates through the strainer 10, the distributor 11, the cooling pressure reducing device 12, and the evaporator 13 in this order, becoming the refrigerant Vi low-pressure low-temperature gas. At that time, the indoor blower was operating, and the air was cooled by passing through the 13 evaporators.
It can be made into air. According to this embodiment, the 脣i'
(During cooling operation, the area between the reheat dehumidification solenoid valve 5 and the reheat dehumidification pressure reducing device 9 is all on the low pressure side, which is effective in preventing refrigerant from stagnation.
本発明によれば、冷房運転時不要となる再熱器前後を低
圧にすることができるので、冷媒の寝込みを防止でき、
シンプルで安価な冷凍サイクルにできる効果がめる。According to the present invention, it is possible to lower the pressure before and after the reheater, which is unnecessary during cooling operation, so it is possible to prevent refrigerant from stagnation,
The benefits of a simple and inexpensive refrigeration cycle can be seen.
第１図は本発明の一実施例を示す冷凍サイクル図である
。
１・・・圧縮機 ２・・・室外凝縮器 ３・・・サ
ービスバルブ ４・・・至内再熱器 ５・・・再熱
除湿用電磁弁 ６・・・冷房用電磁弁 ７・・・ス
トレーナ８・・・分配器 ９・・・再熱除湿用減圧装
置 １０・・・ストレーナ １１・・・分配器
１２・・・冷房用減圧装置 １３・・・蒸発器 １
４・・・サービスバルブ １５・・・アキュームレー
タ。
審１団FIG. 1 is a refrigeration cycle diagram showing one embodiment of the present invention. 1... Compressor 2... Outdoor condenser 3... Service valve 4... Indoor reheater 5... Solenoid valve for reheating and dehumidification 6... Solenoid valve for cooling 7... Strainer 8...Distributor 9...Reheat dehumidification pressure reducing device 10...Strainer 11...Distributor
12... Cooling pressure reducing device 13... Evaporator 1
4...Service valve 15...Accumulator. 1st referee group
Claims (1)
器、電磁弁および減圧装置によりサイクルの切換え可能
にした冷凍サイクルにおいて、前述の減圧装置を冷房用
と再熱除湿用に分け、電磁弁が閉となる側の電磁弁と蒸
発器入口間が低圧側になるようにしたことを特徴とする
冷凍サイクル。In the refrigeration cycle, each indoor and outdoor unit is equipped with a condenser, and the cycle can be switched using a compressor, evaporator, solenoid valve, and pressure reducing device. A refrigeration cycle characterized in that the area between the solenoid valve on the closed side and the evaporator inlet is on the low pressure side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10426287A JPS63271067A (en) | 1987-04-30 | 1987-04-30 | Refrigeration cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10426287A JPS63271067A (en) | 1987-04-30 | 1987-04-30 | Refrigeration cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63271067A true JPS63271067A (en) | 1988-11-08 |
Family
ID=14376014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10426287A Pending JPS63271067A (en) | 1987-04-30 | 1987-04-30 | Refrigeration cycle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63271067A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103945A (en) * | 1990-08-23 | 1992-04-06 | Daikin Ind Ltd | Operation controller for air conditioning apparatus |
| JPH09119748A (en) * | 1995-08-30 | 1997-05-06 | Carrier Corp | Air conditioner |
-
1987
- 1987-04-30 JP JP10426287A patent/JPS63271067A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103945A (en) * | 1990-08-23 | 1992-04-06 | Daikin Ind Ltd | Operation controller for air conditioning apparatus |
| JPH09119748A (en) * | 1995-08-30 | 1997-05-06 | Carrier Corp | Air conditioner |
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