JP3188121B2 - Non-azeotropic mixed refrigerant filling device - Google Patents
Non-azeotropic mixed refrigerant filling deviceInfo
- Publication number
- JP3188121B2 JP3188121B2 JP01432095A JP1432095A JP3188121B2 JP 3188121 B2 JP3188121 B2 JP 3188121B2 JP 01432095 A JP01432095 A JP 01432095A JP 1432095 A JP1432095 A JP 1432095A JP 3188121 B2 JP3188121 B2 JP 3188121B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- azeotropic
- azeotropic mixed
- mixed refrigerant
- cylinder
- 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.)
- Expired - Fee Related
Links
- 239000003507 refrigerant Substances 0.000 title claims description 181
- 239000007788 liquid Substances 0.000 claims description 39
- 230000008016 vaporization Effects 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 description 21
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- RWRIWBAIICGTTQ-UHFFFAOYSA-N anhydrous difluoromethane Natural products FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、冷凍装置（例えば空気
調和機）の冷媒回路中に補充用の非共沸混合冷媒を充填
（チャージ）するための非共沸混合冷媒充填装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-azeotropic mixed refrigerant charging apparatus for charging a refilling non-azeotropic mixed refrigerant into a refrigerant circuit of a refrigerating apparatus (for example, an air conditioner).
【０００２】[0002]
【従来の技術】一般に、冷媒回路中の冷媒が漏れたとき
には、補充用ボンベに収容した冷媒を冷媒回路中にチャ
ージすることが行われる。2. Description of the Related Art Generally, when refrigerant in a refrigerant circuit leaks, the refrigerant contained in a refill cylinder is charged into the refrigerant circuit.
【０００３】単一冷媒をチャージするに際しては、従
来、ボンベの重量を秤で計量しながら、漏れたであろう
と推定される重量の冷媒を、圧縮機の吸込ラインからチ
ャージするようにしている。しかしながら、昨今では、
フロン規制によって代替冷媒（例えば、Ｒ−４０７Ｃ）
の使用が普及しており、漏洩した代替冷媒の補充の取り
扱いが問題になってきている。即ち、上記代替冷媒Ｒ−
４０７Ｃは、ＨＦＣ３２とＨＦＣ１２５とＨＦＣ１３４
ａとの冷媒の組成が各々２３ｗ％、２５ｗ％、５２ｗ％
の割合からなる非共沸混合冷媒であり、それぞれの冷媒
の沸点が異なるため、冷媒のチャージ時に組成変化が現
われ易いという問題がある。Conventionally, when charging a single refrigerant, the weight of the cylinder, which is estimated to have leaked, is charged from the suction line of the compressor while weighing the weight of the cylinder with a scale. However, these days,
Alternative refrigerants (eg R-407C) due to CFC regulations
Has become widespread, and handling of replenishment of leaked alternative refrigerants has become a problem. That is, the alternative refrigerant R-
407C includes HFC32 and HFC 125 HFC 134
The composition of the refrigerant with a is 23 w%, 25 w%, and 52 w%, respectively.
A non-azeotropic mixed refrigerant consisting of the percentage of each of the refrigerant
Since the boiling point of different, it is liable to appear in composition changes during charging of the refrigerant.
【０００４】[0004]
【発明が解決しようとする課題】この冷媒の組成変化の
問題を解消するためのひとつの方法として、補充用の非
共沸混合冷媒のチャージを液状態で行なう方法もある
が、圧縮機の吸込ラインを通じて、液状態でチャージを
行うと、圧縮機が液冷媒を吸込んで、液圧縮を起こし、
圧縮機の故障につながり易いという問題がある。[Problems that the Invention is to Solve As a method for solving the problem of composition change of the refrigerant, there is also a row Nau method a charge of non-azeotropic refrigerant refill a liquid state
However, when charging in the liquid state through the suction line of the compressor, the compressor sucks the liquid refrigerant, causing liquid compression,
There is a problem that it easily leads to failure of the compressor.
【０００５】そこで、本発明の目的は、上述した従来の
技術が有する問題点を解消し、非共沸混合冷媒を液状態
でチャージして、冷媒チャージ時に生じがちな冷媒組成
の変化を防ぎつつ圧縮機が液圧縮を起こすことのない非
共沸混合冷媒充填装置を提供することにある。Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art and to convert a non-azeotropic mixed refrigerant into a liquid state.
Refrigerant composition that tends to occur when charging the refrigerant
It is an object of the present invention to provide a non-azeotropic mixed refrigerant charging device in which a compressor does not cause liquid compression while preventing a change in pressure.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の発明は、
非共沸混合冷媒を使用した冷凍装置の冷媒回路中に補充
用の非共沸混合冷媒を充填するための非共沸混合冷媒充
填装置において、補充用の非共沸混合冷媒を収容した補
充用ボンベと、該補充用ボンベから液状態の冷媒を前記
冷媒回路の熱交換器と圧縮機との間の吸込ラインへ供給
する手段と、前記補充用ボンベを出て圧縮機に吸込まれ
る液状態の非共沸混合冷媒を前記吸込ラインに流入する
前に気化させるための冷媒気化手段とを備えたものであ
る。According to the first aspect of the present invention,
In the non-azeotropic refrigerant filling apparatus for filling a non-azeotropic refrigerant refill in the refrigerant circuit of a refrigerating apparatus using a non-azeotropic refrigerant mixture, containing a non-azeotropic refrigerant refill complement < br /> and earmarking cylinder, means for supplying <br/> to the suction line between the heat exchanger of the refrigerant circuit of the refrigerant in the liquid state from the 該補earmarking cylinder compressor, exits the supplementary cylinder Non-azeotropic mixed refrigerant in a liquid state sucked into the compressor flows into the suction line
And a refrigerant vaporizing means for vaporizing the refrigerant in advance.
【０００７】請求項２記載の発明は、非共沸混合冷媒を
使用した冷凍装置の冷媒回路中に補充用の非共沸混合冷
媒を充填するための非共沸混合冷媒充填装置において、
補充用の非共沸混合冷媒を収容した補充用ボンベと、該
補充用ボンベの非共沸混合冷媒を液状態で前記冷媒回路
へ供給する手段と、前記補充用ボンベを出て冷媒回路に
供給される液状態の非共沸混合冷媒を気化させるための
冷媒気化手段とを備え、この冷媒気化手段は、前記補充
用の非共沸混合冷媒を通すチューブの周囲に高温ガス管
を配置し、この高温ガス管には圧縮機の吐出ガスの一部
を通す管路を有しているものである。According to a second aspect of the present invention, there is provided a non-azeotropic mixed refrigerant filling apparatus for filling a non-azeotropic mixed refrigerant for replenishment in a refrigerant circuit of a refrigeration system using the non-azeotropic mixed refrigerant,
And replenishing cylinder containing a non-azeotropic refrigerant refill, the
The non-azeotropic mixed refrigerant of the replenishing cylinder is in a liquid state in the refrigerant circuit.
Means for supplying to the, to the refrigerant circuit exits said supplementary cylinder
Refrigerant vaporizing means for vaporizing the supplied non-azeotropic mixed refrigerant in a liquid state, the refrigerant vaporizing means comprising a high-temperature gas pipe disposed around a tube through which the non-azeotropic mixed refrigerant for replenishment passes. The high-temperature gas pipe has a pipe through which a part of the discharge gas of the compressor passes.
【０００８】請求項３記載の発明は、非共沸混合冷媒を
使用した冷凍装置の冷媒回路中に補充用の非共沸混合冷
媒を充填するための非共沸混合冷媒充填装置において、
補充用の非共沸混合冷媒を収容した補充用ボンベと、該
補充用ボンベの非共沸混合冷媒を液状態で前記冷媒回路
へ供給する手段と、前記補充用ボンベを出て冷媒回路に
供給される液状態の非共沸混合冷媒を気化させるための
冷媒加熱用ヒータとを備えたものである。According to a third aspect of the present invention, there is provided a non-azeotropic mixed refrigerant filling apparatus for filling a non-azeotropic mixed refrigerant for replenishment in a refrigerant circuit of a refrigerating apparatus using the non-azeotropic mixed refrigerant,
And replenishing cylinder containing a non-azeotropic refrigerant refill, the
The non-azeotropic mixed refrigerant of the replenishing cylinder is in a liquid state in the refrigerant circuit.
Means for supplying to the, to the refrigerant circuit exits said supplementary cylinder
A refrigerant heater for vaporizing the supplied non-azeotropic mixed refrigerant in a liquid state is provided.
【０００９】[0009]
【作用】請求項１〜３に記載の発明によれば、非共沸混
合冷媒を使用した冷凍装置の冷媒回路中の冷媒量が不足
し、冷媒補充用ボンベから非共沸混合冷媒を冷媒回路中
にチャージする時には、冷凍装置を運転しながら、冷媒
補充用ボンベの非共沸混合冷媒を、まず、冷媒回路の熱
交換器と圧縮機との間の吸込ラインへ液状態で供給す
る。一方、吸込ラインへ供給される非共沸混合冷媒の液
は、冷媒気化手段によって加熱され、圧縮機に吸込まれ
るときには非共沸混合冷媒は液相から気相に状態が変化
しているので、冷媒回路へは、非共沸混合冷媒の組成を
保った冷媒がチャージされ、かつ、冷媒チャージ時に冷
凍装置が運転されていても、圧縮機が液圧縮を起こすこ
とはなく、冷媒のチャージが圧縮機の故障につながるこ
とはない。また、請求項２に記載の発明によれば、冷媒
を通すチューブの周囲に高温ガス管を配置し、この高温
ガス管には圧縮機の吐出ガスの一部を通す管路を有して
冷媒チャージ時の冷媒の加熱の熱源として、運転してい
る圧縮機からの吐出ガス冷媒の熱を利用した冷媒気化手
段が備えられているので、上述の作用に加え、冷凍装置
が有する熱を利用して非共沸混合冷媒液の気化を行わせ
ることができる。さらに、請求項３に記載の発明によれ
ば、補充用ボンベの非共沸混合冷媒を液状態で冷媒回路
側へ供給する手段と、補充用ボンベを出て冷媒回路に供
給される前に液状態の非共沸混合冷媒を気化させるため
の冷媒加熱用ヒータを有した冷媒気化手段を備えている
ので、上述の作用に加えて、冷媒回路の設置状態や圧縮
機の運転状態にかかわらず液冷媒を電気ヒータで気化さ
せた後、圧縮機に吸い込ませ、圧縮機の故障等の弊害を
防いで、補充に必要な量の非共沸混合冷媒を冷媒回路に
チャージすることができる。 According to the present invention, the amount of refrigerant in the refrigerant circuit of the refrigeration system using the non-azeotropic mixed refrigerant is insufficient, and the non-azeotropic mixed refrigerant is supplied from the refrigerant replenishing cylinder to the refrigerant circuit. During ~
Charged and sometimes, while operating a refrigeration system, a non-azeotropic refrigerant in the refrigerant refill cylinder, firstly, the refrigerant circuit heat
Supply liquid to the suction line between the exchanger and the compressor
You. On the other hand, the liquid of the non-azeotropic mixed refrigerant supplied to the suction line
Is heated by the refrigerant vaporization means, and the state of the non-azeotropic mixed refrigerant changes from the liquid phase to the gas phase when it is sucked into the compressor.
To have Runode, the refrigerant circuit is, the composition of non-azeotropic mixed refrigerant
The retained refrigerant is charged and cooled when the refrigerant is charged.
Even when the freezing apparatus is operated, the compressor does not cause liquid compression, and the charge of the refrigerant does not lead to the failure of the compressor. According to the invention described in claim 2, the refrigerant
Place a hot gas pipe around the tube through which
The gas pipe has a pipe through which a part of the discharge gas of the compressor passes.
It operates as a heat source for heating the refrigerant when charging the refrigerant.
Vaporizer using the heat of the gas refrigerant discharged from the compressor
Since the stage is provided, in addition to the above-described operation,
Of the non-azeotropic mixed refrigerant liquid using the heat of
Can be Further, according to the third aspect of the present invention,
If the non-azeotropic mixed refrigerant in the refill cylinder is
Means to supply the refrigerant to the refrigerant circuit
To vaporize a liquid non-azeotropic refrigerant mixture before it is supplied
Refrigerant vaporizing means having a refrigerant heating heater
Therefore, in addition to the above-mentioned actions,
The liquid refrigerant is vaporized by the electric heater regardless of the operation state of the machine.
And then let it suck into the compressor to prevent adverse effects such as compressor failure.
To prevent the amount of non-azeotropic mixed refrigerant required for replenishment from flowing into the refrigerant circuit.
Can be charged.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図１は空気調和機１の冷媒回路を示す。この空
気調和機１は、室外ユニット３と室内ユニット５とから
なり、各ユニット３，５間は、２本の冷媒管７によりつ
ながれている。室外ユニット３には、アキュームレータ
９、圧縮機１１、四方弁１３、室外熱交換器１５、ファ
ン１７、三方弁２１等が内蔵され、室内ユニット５に
は、室内熱交換器２３、膨脹弁１９、ファン２５等が内
蔵される。この空気調和機１は運転すると、冷媒回路中
を冷媒が流れて、室内を冷房又は暖房する。An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a refrigerant circuit of the air conditioner 1. The air conditioner 1 includes an outdoor unit 3 and an indoor unit 5, and each unit 3, 5 is connected by two refrigerant pipes 7. The outdoor unit 3 incorporates an accumulator 9, a compressor 11, a four-way valve 13, an outdoor heat exchanger 15, a fan 17, a three-way valve 21, and the like. The indoor unit 5 includes an indoor heat exchanger 23, an expansion valve 19, A fan 25 and the like are built in. When the air conditioner 1 is operated, the refrigerant flows through the refrigerant circuit to cool or heat the room.
【００１１】しかして、この実施例では、冷媒回路中
に、ＨＦＣ３２／１２５／１３４ａが各２３／２５／５
２ｗ％の組成からなる非共沸混合冷媒（Ｒ−４０７Ｃ）
が充填されている。冷媒を用いた空気調和機１は、冷媒
回路にチャージされた冷媒が配管のつなぎ目等を通じて
漏出することがあり、冷媒が漏出した場合には、三方弁
２１のポート２１ａに冷媒回路にチャージされている冷
媒とほぼ同一組成の補充用冷媒を収容したボンベ１００
をつなぎ、このボンベ１００内の非共沸混合冷媒を、開
閉弁を通じて、圧縮機１１の吸込圧力により冷媒回路中
に液状態で供給する。図１の実施例では、冷媒が非共沸
混合冷媒であり、この場合のボンベには、非共沸混合冷
媒が収容されている。 In this embodiment, however, HFC32 / 125 / 134a is provided in each of the refrigerant circuits 23/25/5
Non-azeotropic mixed refrigerant of 2w% composition (R-407C)
Is filled . The air conditioner 1 using a refrigerant is
Refrigerant charged in the circuit may leak through a joint of piping or the like. If the refrigerant leaks , the refrigerant charged in the refrigerant circuit is charged to the port 21a of the three-way valve 21 .
Bomb 100 containing a replenishing refrigerant having substantially the same composition as the medium
And the non-azeotropic mixed refrigerant in the cylinder 100 is supplied to the refrigerant circuit in a liquid state by the suction pressure of the compressor 11 through an on-off valve . In the embodiment of FIG. 1, the refrigerant is non-azeotropic.
It is a mixed refrigerant.
A medium is contained.
【００１２】ボンベ１００は円筒状の圧力容器であり、
液状態でチャージできるように、サイホン管（図示せ
ず）が内部に延びている。このボンベ１００には、冷媒
回路中に充填された非共沸混合冷媒（Ｒ−４０７Ｃ）と
ほぼ同一組成（ＨＦＣ３２／１２５／１３４ａ；２３／
２５／５２ｗ％）を有する非共沸混合冷媒が液状態で収
容されている。このため、冷媒のチャージ時に、秤１０
１で計量しながら漏れたであろうと推定される重量の冷
媒をボンベ１００から冷媒回路へ供給すると、ボンベ１
００からは液状態の冷媒のみが流出し、吸込ラインへ供
給される。 The cylinder 100 is a cylindrical pressure vessel,
A siphon tube (not shown) extends inside to allow charging in a liquid state. The bomb 100 has substantially the same composition (HFC32 / 125 / 134a; 23/23) as the non-azeotropic mixed refrigerant (R-407C) charged in the refrigerant circuit.
(25/52 w%) is stored in a liquid state . Therefore, when the refrigerant is charged , the scale 10
When a refrigerant having a weight estimated to have leaked while being measured at 1 is supplied from the cylinder 100 to the refrigerant circuit, the cylinder 1
From 00, only the liquid refrigerant flows out and is supplied to the suction line.
Be paid.
【００１３】空気調和機１を例にとれば、冷媒回路中に
充填される冷媒の量は、馬力当たりほぼ１ｋｇである。Taking the air conditioner 1 as an example, the amount of refrigerant charged in the refrigerant circuit is approximately 1 kg per horsepower.
【００１４】ボンベ１００は、耐圧２０ｋｇ／ｃｍ2 程
度のチャージホース１０３を介して、三方弁２１のポー
ト２１ａにつながれ、非共沸混合冷媒は、このチャージ
ホース１０３を通じてチャージされる。The cylinder 100 is connected to a port 21a of the three-way valve 21 via a charge hose 103 having a pressure resistance of about 20 kg / cm 2, and the non-azeotropic mixed refrigerant is charged through the charge hose 103.
【００１５】しかして、図１の実施例によれば、チャー
ジホース１０３又はチャージパイプ（銅製：図示せず）
の外周囲には冷媒加熱用のヒータ１０５が配置され、こ
のヒータ１０５に電流が流されると、チャージホース１
０３を通る冷媒が気化される。Thus , according to the embodiment shown in FIG. 1 , the charge hose 103 or the charge pipe (made of copper: not shown)
A heater 105 for heating the refrigerant is disposed around the outside of the heater.
The refrigerant passing through 03 is vaporized.
【００１６】空気調和機１を冷房運転しながら、冷媒回
路中にチャージが開始されると、非共沸混合冷媒はボン
ベ１００から液状態で流出し、液状態の非共沸混合冷媒
は、チャージホース１０３を通る間に気化される。When charging is started in the refrigerant circuit while the air conditioner 1 is being cooled, the non-azeotropic mixed refrigerant flows out of the cylinder 100 in a liquid state, and the non-azeotropic mixed refrigerant in the liquid state is charged. It is vaporized while passing through the hose 103.
【００１７】これによれば、ボンベから出るときの冷媒
の組成は、非共沸混合冷媒Ｒ−４０ ７Ｃの組成、すなわ
ち、ＨＦＣ３２とＨＦＣ１２５とＨＦＣ１３４ａが各々
２３ｗ％、２５ｗ％、５２ｗ％の割合を維持した液状態
で流出し、吸込ラインに流入する前に、冷媒気化手段で
気化され、上記非共沸混合冷媒の組成を保った気相の冷
媒が圧縮機１１に吸込まれるので、液圧縮は起こらず、
ボンベ１００から液状態で冷媒を流出させても、圧縮機
１１の故障（液圧縮）等のトラブルは未然に防止される
上に、チャージされる冷媒の組成は、冷凍装置にチャー
ジされている非共沸混合冷媒（Ｒ４０７Ｃ）とほぼ同一
組成を保った状態で供給され、漏れた量の冷媒を冷媒回
路にチャージすることができる。 According to this, the refrigerant when leaving the cylinder
Is the composition of the non-azeotropic refrigerant mixture R- 407C, that is,
HFC32, HFC125 and HFC134a respectively
Liquid state maintaining the ratio of 23w%, 25w%, 52w%
Before flowing into the suction line,
Gas phase cooling that is vaporized and maintains the composition of the non-azeotropic refrigerant mixture
Since the medium is sucked into the compressor 11, liquid compression does not occur,
Even if the refrigerant flows out of the cylinder 100 in a liquid state, troubles such as failure of the compressor 11 (liquid compression) are prevented beforehand.
The composition of the refrigerant to be charged is
Almost the same as the non-azeotropic mixed refrigerant (R407C)
Supplied while maintaining the composition, the leaked amount of refrigerant is
You can charge the road.
【００１８】図２は別の実施例を示している。これによ
れば、チャージホース１０３の外周囲には冷媒加熱用の
高圧ガス管１０７が配置され、この高圧ガス管１０７に
は、冷媒チャージ時に運転される圧縮機１１の吐出ガス
の一部が導入される。吐出ガスの一部が高圧ガス管１０
７に導入されると、チャージホース１０３を通る冷媒
は、吐出ガスの熱により加熱されて気化される。FIG. 2 shows another embodiment. According to this, a high-pressure gas pipe 107 for heating the refrigerant is arranged around the outer periphery of the charge hose 103, and a part of the discharge gas of the compressor 11 operated at the time of charging the refrigerant is introduced into the high-pressure gas pipe 107. Is done. A part of the discharge gas is a high pressure gas pipe 10
7, the refrigerant passing through the charge hose 103 is heated and vaporized by the heat of the discharged gas.
【００１９】これによれば、冷媒気化手段は、電気ヒー
タ等の加熱器を用いずに液冷媒を気化させ、液状態の非
共沸混合冷媒が、その組成を保った気相状態で圧縮機１
１に吸込まれるので、液圧縮は起こらず、また、冷媒回
路中の冷媒の組成も一定の割合を維持してチャージされ
るので、圧縮機１１の故障等のトラブルは未然に防止さ
れる。According to this, the refrigerant evaporating means is provided with an electric heater.
The liquid refrigerant is vaporized without using a heater such as a compressor, and the non-azeotropic mixed refrigerant in a liquid state is compressed in a gaseous state while maintaining its composition.
Since sucked into 1, it does not occur liquid compression, The refrigerant times
The refrigerant composition in the road is also charged while maintaining a certain ratio.
Therefore, a trouble such as a failure of the compressor 11 is prevented.
【００２０】以上、一実施例に基づいて本発明を説明し
たが、本発明は、これに限定されるものではない。種々
の変形が可能である。Although the present invention has been described based on one embodiment, the present invention is not limited to this. Various modifications are possible.
【００２１】例えば、上記の実施例において、冷媒気化
手段は、チャージホース１０３に設けているが、これに
限定されるものではなく、例えば図１のＡ点〜Ｂ点のい
わゆる吸込みラインの途中に設けてもよい。For example, in the above embodiment, the refrigerant vaporizing means is provided on the charge hose 103, but is not limited to this. For example, the refrigerant vaporizing means is provided in the middle of a so-called suction line at points A and B in FIG. It may be provided.
【００２２】[0022]
【発明の効果】以上説明したように、請求項１〜３記載
の発明によれば、補充用ボンベを用いて冷媒回路中にチ
ャージされる非共沸混合冷媒は、液相状態でボンベから
流出され、ボンベから出た後に冷媒気化手段によって気
化され、気相状態になった後に冷媒回路にチャージされ
るので、チャージされる冷媒が気相状態と液相状態とで
組成が異なる非共沸混合冷媒であっても、冷媒回路へ
は、その非共沸混合冷媒の本来の組成を保って冷媒回路
に流入する。ボンベから出た非共沸混合冷媒は、冷媒気
化手段で液相から気相に状態が変化した後に圧縮機に吸
入されるので、複雑な構造の冷媒供給装置を用いずに、
圧縮機の吸入力を利用して冷媒のチャージをしても圧縮
機が液圧縮を起こしたり、圧縮機の故障につながること
はない。As described above, according to the first to third aspects of the present invention, the non-azeotropic mixed refrigerant charged in the refrigerant circuit using the replenishing cylinder is discharged from the cylinder in a liquid state.
After being discharged, it is vaporized by the refrigerant vaporizing means after leaving the cylinder, and is charged into the refrigerant circuit after being in a gaseous state.
Therefore, the refrigerant to be charged changes between a gas phase state and a liquid phase state.
Even for non-azeotropic mixed refrigerants with different compositions,
Is the refrigerant circuit that maintains the original composition of the non-azeotropic refrigerant mixture.
Flows into. Non-azeotropic mixed refrigerant, the refrigerant vapor coming out from the cylinder
Intake to the compressor after the state in the gas phase from the liquid phase varied means
Since the input, without a coolant supply apparatus of complicated structure,
Or even if the charging of the refrigerant by utilizing the suction force of the compressor compressor to put the liquid compression, will not lead to failure of the compressor.
【図１】本発明による非共沸混合冷媒充填装置の一実施
例を示す冷媒回路図である。FIG. 1 is a refrigerant circuit diagram showing one embodiment of a non-azeotropic mixed refrigerant charging apparatus according to the present invention.
【図２】別の実施例を示す冷媒回路図である。FIG. 2 is a refrigerant circuit diagram showing another embodiment.
１ 空気調和機 ３ 室外ユニット ５ 室内ユニット １１ 圧縮機 ２１ 三方弁 １００ ボンベ １０３ チャージホース １０５ ヒータ（冷媒気化手段） １０７ 高圧ガス管（冷媒気化手段） REFERENCE SIGNS LIST 1 air conditioner 3 outdoor unit 5 indoor unit 11 compressor 21 three-way valve 100 cylinder 103 charge hose 105 heater (refrigerant vaporizer) 107 high-pressure gas pipe (refrigerant vaporizer)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 坂本 直人 大阪府守口市京阪本通２丁目５番５号 三洋電機株式会社内 (56)参考文献 特開 平８−136091（ＪＰ，Ａ) 特開 平８−193761（ＪＰ，Ａ) 特開 平５−288439（ＪＰ，Ａ) 実開 昭56−109579（ＪＰ，Ｕ) 実開 昭57−132170（ＪＰ，Ｕ) 実開 昭63−32272（ＪＰ，Ｕ) 実開 昭53−110545（ＪＰ，Ｕ) 実開 昭62−156780（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F25B 45/00 F25B 1/00 395 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Naoto Sakamoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-8-136091 (JP, A) JP 8-93761 (JP, A) JP-A-5-288439 (JP, A) JP-A-56-109579 (JP, U) JP-A 57-132170 (JP, U) JP-A 63-32272 (JP, A) , U) Fully open 1979-110545 (JP, U) Fully open 1987-156780 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) F25B 45/00 F25B 1/00 395
Claims (3)
媒回路中に補充用の非共沸混合冷媒を充填するための非
共沸混合冷媒充填装置において、補充用の非共沸混合冷
媒を収容した補充用ボンベと、該補充用ボンベから液状
態の冷媒を前記冷媒回路の熱交換器と圧縮機との間の吸
込ラインへ供給する手段と、前記補充用ボンベを出て圧
縮機に吸込まれる液状態の非共沸混合冷媒を前記吸込ラ
インに流入する前に気化させるための冷媒気化手段とを
備えたことを特徴とする非共沸混合冷媒充填装置。1. A non-azeotropic mixed refrigerant filling device for filling a non-azeotropic mixed refrigerant for replenishment in a refrigerant circuit of a refrigerating device using the non-azeotropic mixed refrigerant, wherein the non-azeotropic mixed refrigerant for replenishment is provided. and replenishing cylinder containing the liquid from 該補earmarking cylinder
Means for supplying the refrigerant state to the suction line between the compressor and the heat exchanger of the refrigerant circuit, a non-azeotropic refrigerant in the liquid state is sucked into the compressor exits the supplementary cylinder the suction La
And a refrigerant vaporizing means for vaporizing the refrigerant before flowing into the inlet .
媒回路中に補充用の非共沸混合冷媒を充填するための非
共沸混合冷媒充填装置において、補充用の非共沸混合冷
媒を収容した補充用ボンベと、該補充用ボンベの非共沸
混合冷媒を液状態で前記冷媒回路へ供給する手段と、前
記補充用ボンベを出て冷媒回路に供給される液状態の非
共沸混合冷媒を気化させるための冷媒気化手段とを備
え、この冷媒気化手段は、前記補充用の非共沸混合冷媒
を通すチューブの周囲に高温ガス管を配置し、この高温
ガス管には圧縮機の吐出ガスの一部を通す管路を有して
いることを特徴とする非共沸混合冷媒充填装置。2. A non-azeotropic mixed refrigerant filling device for filling a non-azeotropic mixed refrigerant for replenishment in a refrigerant circuit of a refrigeration system using a non-azeotropic mixed refrigerant, wherein the non-azeotropic mixed refrigerant for replenishment is provided. and replenishing cylinder accommodating and means for supplying to the refrigerant circuit a non-azeotropic refrigerant該補earmarking bomb in a liquid state, the non-azeotropic liquid state is supplied to the refrigerant circuit exits said supplementary cylinder Refrigerant vaporizing means for vaporizing the mixed refrigerant, the refrigerant vaporizing means having a high-temperature gas pipe disposed around a tube through which the non-azeotropic mixed refrigerant for replenishment passes; A non-azeotropic mixed refrigerant charging device, characterized in that it has a pipe through which a part of the discharged gas passes.
媒回路中に補充用の非共沸混合冷媒を充填するための非
共沸混合冷媒充填装置において、補充用の非共沸混合冷
媒を収容した補充用ボンベと、該補充用ボンベの非共沸
混合冷媒を液状態で前記冷媒回路へ供給する手段と、前
記補充用ボンベを出て冷媒回路に供給される液状態の非
共沸混合冷媒を気化させるための冷媒加熱用ヒータとを
備えたことを特徴とする非共沸混合冷媒充填装置。3. A non-azeotropic mixed refrigerant filling device for filling a non-azeotropic mixed refrigerant for replenishment in a refrigerant circuit of a refrigeration system using the non-azeotropic mixed refrigerant, wherein the non-azeotropic mixed refrigerant for replenishment is provided. and replenishing cylinder accommodating and means for supplying to the refrigerant circuit a non-azeotropic refrigerant該補earmarking bomb in a liquid state, the non-azeotropic liquid state is supplied to the refrigerant circuit exits said supplementary cylinder A non-azeotropic mixed refrigerant charging device, comprising: a refrigerant heating heater for vaporizing the mixed refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01432095A JP3188121B2 (en) | 1995-01-31 | 1995-01-31 | Non-azeotropic mixed refrigerant filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01432095A JP3188121B2 (en) | 1995-01-31 | 1995-01-31 | Non-azeotropic mixed refrigerant filling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08200899A JPH08200899A (en) | 1996-08-06 |
| JP3188121B2 true JP3188121B2 (en) | 2001-07-16 |
Family
ID=11857799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01432095A Expired - Fee Related JP3188121B2 (en) | 1995-01-31 | 1995-01-31 | Non-azeotropic mixed refrigerant filling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3188121B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5024781B2 (en) * | 2006-12-20 | 2012-09-12 | 昭和電工ガスプロダクツ株式会社 | Carbon dioxide supercritical filling equipment |
| KR101349028B1 (en) * | 2012-04-02 | 2014-01-10 | 현대자동차주식회사 | Device for injecting fixed quantity of refrigerants |
-
1995
- 1995-01-31 JP JP01432095A patent/JP3188121B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08200899A (en) | 1996-08-06 |
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