JPH0953871A - Freezer - Google Patents
FreezerInfo
- Publication number
- JPH0953871A JPH0953871A JP7226112A JP22611295A JPH0953871A JP H0953871 A JPH0953871 A JP H0953871A JP 7226112 A JP7226112 A JP 7226112A JP 22611295 A JP22611295 A JP 22611295A JP H0953871 A JPH0953871 A JP H0953871A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- stop valve
- branch circuit
- cooled condenser
- accumulator
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は冷凍装置に関するも
のであり、さらに詳しくは修理、移転、廃棄などの際に
冷凍装置で使用したフロン系冷媒などの冷媒を大気中に
放出することなく短時間で容易に回収するための回路を
備えた冷凍装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerating apparatus, and more specifically, it does not release a refrigerant such as a CFC-based refrigerant used in the refrigerating apparatus at the time of repair, transfer, or disposal to the atmosphere for a short time. The present invention relates to a refrigerating apparatus provided with a circuit for easy recovery.
【０００２】[0002]
【従来の技術】従来、冷凍機の冷媒として用いられてい
るものはジクロロジフルオロメタン（Ｒ−１２）や共沸
混合冷媒のＲ−１２と１，１−ジフルオロエタン（Ｒ−
１５２ａ）とからなるＲ−５０２があるが、これらの冷
媒は、その高いオゾン破壊の潜在性により、大気中に放
出されて地球上空のオゾン層に到達すると、このオゾン
層を破壊する問題があるので、冷媒中の塩素基の含有量
の少ない冷媒、例えはクロロジフルオロメタン（ＨＣＦ
Ｃ−２２、Ｒ−２２）、塩素基を含まない冷媒、例えは
ジフルオロメタン（ＨＦＣ−３２、Ｒ−３２）、ペンタ
フルオロエタン（ＨＦＣ−１２５、Ｒ−１２５）や１，
１，１，２−テトラフルオロエタン（ＨＦＣ−１３４
ａ、Ｒ−１３４ａ）、あるいはこれらの混合物が代替冷
媒として用いられるようになっている。2. Description of the Related Art Dichlorodifluoromethane (R-12) and azeotrope mixed refrigerants R-12 and 1,1-difluoroethane (R-) have hitherto been used as refrigerants for refrigerators.
152-a) and R-502, which have a problem of destroying the ozone layer when they reach the ozone layer above the earth due to their high ozone depletion potential. Therefore, a refrigerant with a low content of chlorine groups in the refrigerant, such as chlorodifluoromethane (HCF)
C-22, R-22), a refrigerant containing no chlorine group, such as difluoromethane (HFC-32, R-32), pentafluoroethane (HFC-125, R-125) or 1,
1,1,2-tetrafluoroethane (HFC-134
a, R-134a), or mixtures thereof, are now being used as alternative refrigerants.
【０００３】従来、冷凍機の修理・移転・廃棄などの場
合は、使用していた冷媒を大気に放出するか、冷媒回収
機を用いて冷媒を回収していた。フロン系冷媒の中には
上記のように大気に放出すると、オゾン層を破壊した
り、また地球温暖化の原因となるものがあるので、回収
が義務付けられているが、市販の冷媒回収機を使用する
と、約１００ｋｇの冷媒を回収するのに約２時間を要
し、時間がかかり効率的でないという問題があった。In the past, when repairing, moving, or discarding a refrigerator, the used refrigerant was released to the atmosphere or the refrigerant was recovered using a refrigerant recovery machine. When released into the atmosphere as described above, some CFC-based refrigerants may destroy the ozone layer and cause global warming.Therefore, it is obligatory to collect them. When used, it takes about 2 hours to recover about 100 kg of the refrigerant, which is time-consuming and inefficient.
【０００４】[0004]
【発明が解決しようとする課題】本発明の目的は、冷凍
装置の修理、移転、廃棄などの際に冷凍装置で使用した
フロン系冷媒などの冷媒を大気中に放出することなく短
時間で容易に回収するための回路を備えた冷凍装置を提
供することである。SUMMARY OF THE INVENTION An object of the present invention is to facilitate a short time without releasing a refrigerant such as a CFC-based refrigerant used in a refrigeration system to the atmosphere when the refrigeration system is repaired, moved, or discarded. The object of the present invention is to provide a refrigerating apparatus provided with a circuit for recovering.
【０００５】[0005]
【課題を解決するための手段】本発明の請求項１の発明
は、冷媒を凝縮液化する空冷凝縮器、凝縮した冷媒を入
れるレシーバタンク、ドライヤ、膨張弁、液化冷媒を蒸
発させる蒸発器、アキュムレータおよび蒸発気化した冷
媒を圧縮して空冷凝縮器に吐出する圧縮機などを備えた
冷凍装置において、空冷凝縮器とレシーバタンクを連絡
する管路に止め弁と冷媒液回収用の分岐回路を設けてそ
の一端を冷媒液回収ボンベに連結するとともに、蒸発器
とアキュムレータを連絡する管路に前記冷媒液回収ボン
ベ内の圧力を低下させるための分岐回路と止め弁を設け
たことを特徴とする冷凍装置である。According to a first aspect of the present invention, an air-cooled condenser for condensing and liquefying a refrigerant, a receiver tank for containing condensed refrigerant, a dryer, an expansion valve, an evaporator for evaporating a liquefied refrigerant, and an accumulator. Also, in a refrigerating apparatus including a compressor that compresses the evaporated vaporized refrigerant and discharges it to an air-cooled condenser, a stop valve and a branch circuit for refrigerant liquid recovery are provided in a pipeline connecting the air-cooled condenser and a receiver tank. A refrigeration system characterized in that one end thereof is connected to a refrigerant liquid recovery cylinder, and a branch circuit and a stop valve for reducing the pressure in the refrigerant liquid recovery cylinder are provided in a pipe line connecting the evaporator and the accumulator. Is.
【０００６】本発明の請求項２の発明は、冷媒を凝縮液
化する水冷凝縮器、ドライヤ、膨張弁、液化冷媒を蒸発
させる蒸発器、アキュムレータおよび蒸発気化した冷媒
を圧縮して水冷凝縮器に吐出する圧縮機などを備えた冷
凍装置において、水冷凝縮器と膨張弁を連絡する管路に
止め弁と冷媒液回収用の分岐回路を設けてその一端を冷
媒液回収ボンベに連結するとともに、蒸発器とアキュム
レータを連絡する管路に前記冷媒液回収ボンベ内の圧力
を低下させるための分岐回路と止め弁を設けたことを特
徴とする冷凍装置である。According to a second aspect of the present invention, a water-cooled condenser that condenses and liquefies a refrigerant, a dryer, an expansion valve, an evaporator that evaporates a liquefied refrigerant, an accumulator, and an evaporated vaporized refrigerant are compressed and discharged to a water-cooled condenser. In a refrigeration system equipped with a compressor, etc., a stop valve and a branch circuit for collecting refrigerant liquid are provided in a pipe line that connects a water-cooled condenser and an expansion valve, and one end of the branch circuit is connected to a refrigerant liquid recovery cylinder, and an evaporator is also provided. And a stop valve for lowering the pressure in the refrigerant liquid recovery cylinder are provided in a pipe line connecting the accumulator and the accumulator.
【０００７】本発明の請求項３の発明は、請求項１ある
いは請求項２記載の冷凍装置において冷媒がフロン系冷
媒であることを特徴とする。The invention of claim 3 of the present invention is characterized in that in the refrigerating apparatus of claim 1 or 2, the refrigerant is a chlorofluorocarbon refrigerant.
【０００８】[0008]
【作用】本発明は請求項１のように構成することによ
り、冷凍装置の修理・移転・廃棄などの場合には、使用
していた冷媒を大気に放出することなく、圧縮機を運転
して空冷凝縮器で液化した冷媒を回収用ボンベに回収す
ることができる。そして、冷媒の回収中に、回収用ボン
ベ内の圧力が高くなった場合には回収を一時中断して、
回収用ボンベ内の圧力を冷凍機の低圧側に逃がしてボン
ベ内圧力を低下させる。この冷媒回収と回収用ボンベ内
の圧力低下の操作を繰り返すことにより、短時間で効率
良く冷媒を回収することができる。According to the present invention, when the refrigeration system is repaired, relocated, or discarded, the compressor is operated without releasing the used refrigerant to the atmosphere. The refrigerant liquefied by the air-cooled condenser can be recovered in the recovery cylinder. Then, during the recovery of the refrigerant, if the pressure in the recovery cylinder becomes high, the recovery is temporarily suspended,
The pressure in the recovery cylinder is released to the low pressure side of the refrigerator to reduce the pressure in the cylinder. By repeating the operation of recovering the refrigerant and lowering the pressure in the recovery cylinder, the refrigerant can be efficiently recovered in a short time.
【０００９】本発明は請求項２のように構成することに
より、冷凍装置の修理・移転・廃棄などの場合には、使
用していた冷媒を大気に放出することなく、圧縮機を運
転して水冷凝縮器で液化した冷媒を回収用ボンベに回収
することができる。そして、冷媒の回収中に、回収用ボ
ンベ内の圧力が高くなった場合には回収を一時中断し
て、回収用ボンベ内の圧力を冷凍機の低圧側に逃がして
ボンベ内圧力を低下させる。この冷媒回収と回収用ボン
ベ内の圧力低下の操作を繰り返すことにより、短時間で
効率良く冷媒を回収することができる。According to the present invention, the compressor is operated without releasing the used refrigerant to the atmosphere when the refrigeration system is repaired, relocated, or discarded. Refrigerant liquefied by the water-cooled condenser can be recovered in a recovery cylinder. Then, when the pressure in the recovery cylinder becomes high during the recovery of the refrigerant, the recovery is temporarily interrupted and the pressure in the recovery cylinder is released to the low pressure side of the refrigerator to reduce the pressure in the cylinder. By repeating the operation of recovering the refrigerant and lowering the pressure in the recovery cylinder, the refrigerant can be efficiently recovered in a short time.
【００１０】本発明は請求項３のように構成することに
より、使用していたフロン系冷媒を大気に放出すること
なく、回収用ボンベに短時間で効率良く回収できる。According to the third aspect of the present invention, it is possible to efficiently collect the used CFC-based refrigerant in the recovery cylinder in a short time without releasing it to the atmosphere.
【００１１】[0011]
【発明の実施の形態】図１は本発明の冷凍装置の冷凍回
路の一実施例を示す。図２は本発明の他の冷凍装置の冷
凍回路の一実施例を示す。図１において、１は蒸発気化
したフロン系冷媒などの冷媒を圧縮して空冷凝縮器２ａ
に吐出する圧縮機、２ｂは凝縮した冷媒を入れるレシー
バタンク、３は冷媒中の水分を除去するドライヤ、４は
膨張弁、５は液化冷媒を蒸発させる蒸発器、６はアキュ
ムレータを示す。空冷凝縮器２ａとレシーバタンク２ｂ
を連絡する管路７ａに、止め弁１２と冷媒液回収用の分
岐回路８を設けてその一端は冷媒液回収ボンベ１０に連
結してある。空冷凝縮器２ａとレシーバタンク２ｂを連
絡する管路７ａに設けた分岐回路８の接続点とレシーバ
タンク２ｂとの間の管路に止め弁１１を設けている。一
方、蒸発器５とアキュムレータ６を連絡する管路７ｂに
前記冷媒液回収ボンベ１０内の圧力を低下させるための
分岐回路９と止め弁１３を設けてある。分岐回路９の一
端は冷媒液回収ボンベ１０に、他端は蒸発器５とアキュ
ムレータ６を連絡する管路７ｂに接続してある。1 shows an embodiment of a refrigerating circuit of a refrigerating apparatus of the present invention. FIG. 2 shows an embodiment of a refrigeration circuit of another refrigeration system of the present invention. In FIG. 1, reference numeral 1 is an air-cooled condenser 2a that compresses a refrigerant such as a chlorofluorocarbon refrigerant that has been vaporized and evaporated.
Compressor for discharging to 2), 2b is a receiver tank for storing condensed refrigerant, 3 is a dryer for removing water in the refrigerant, 4 is an expansion valve, 5 is an evaporator for evaporating liquefied refrigerant, and 6 is an accumulator. Air-cooled condenser 2a and receiver tank 2b
A stop valve 12 and a branch circuit 8 for recovering the refrigerant liquid are provided in a pipe line 7a that communicates with each other. A stop valve 11 is provided in the pipeline between the connection point of the branch circuit 8 provided in the pipeline 7a connecting the air-cooled condenser 2a and the receiver tank 2b and the receiver tank 2b. On the other hand, a branch circuit 9 and a stop valve 13 for reducing the pressure in the refrigerant liquid recovery cylinder 10 are provided in a pipe line 7b connecting the evaporator 5 and the accumulator 6. One end of the branch circuit 9 is connected to the refrigerant liquid recovery cylinder 10 and the other end is connected to a pipe line 7b connecting the evaporator 5 and the accumulator 6.
【００１２】冷凍回路中の冷媒を回収する時は、止め弁
１１と止め弁１３を閉じ、回収ボンベ１０を開けて圧縮
機１を運転すると、液冷媒は回収ボンベ１０に回収され
る。冷媒の回収運転を続けると、回収ボンベ１０内の圧
力と温度が高くなり（約４５〜５０℃）冷媒の回収がし
ずらくなるので、圧縮機１の運転を停止し、止め弁１２
を閉め、止め弁１３を開の状態とし、冷媒を蒸発させて
分岐回路９を経て圧縮機１の低圧側に導入することによ
り回収ボンベ１０の圧力と温度を低下する（約２５〜３
０℃）。そして、再度前記の冷媒の回収のための運転を
行う。この操作を繰り返すことにより短時間で効率良く
冷媒を回収できる。When the refrigerant in the refrigeration circuit is recovered, the stop valve 11 and the stop valve 13 are closed, the recovery cylinder 10 is opened, and the compressor 1 is operated, whereby the liquid refrigerant is recovered in the recovery cylinder 10. When the refrigerant recovery operation is continued, the pressure and temperature inside the recovery cylinder 10 increase (about 45 to 50 ° C.), and it becomes difficult to recover the refrigerant. Therefore, the operation of the compressor 1 is stopped and the stop valve 12
Is closed, the stop valve 13 is opened, the refrigerant is evaporated and introduced into the low pressure side of the compressor 1 via the branch circuit 9 to reduce the pressure and temperature of the recovery cylinder 10 (about 25 to 3).
0 ° C). Then, the operation for recovering the refrigerant is performed again. By repeating this operation, the refrigerant can be efficiently collected in a short time.
【００１３】図２において、１は蒸発気化したフロン系
冷媒などの冷媒を圧縮して水冷凝縮器２ｃに吐出する圧
縮機、３は冷媒中の水分を除去するドライヤ、４は膨張
弁、５は液化冷媒を蒸発させる蒸発器、６はアキュムレ
ータを示す。１４は入口冷却水、１５は出口冷却水を示
す。ドライヤ３と膨張弁４を連絡する管路７ｃに、止め
弁１２と冷媒液回収用の分岐回路８を設けてその一端は
冷媒液回収ボンベ１０に連結してある。ドライヤ３と膨
張弁４を連絡する管路７ｃに設けた分岐回路８の接続点
と膨張弁４との間の管路に止め弁１１を設けている。一
方、蒸発器５とアキュムレータ６を連絡する管路７ｂに
前記冷媒液回収ボンベ１０内の圧力を低下させるための
分岐回路９と止め弁１３を設けてある。分岐回路９の一
端は冷媒液回収ボンベ１０に、他端は蒸発器５とアキュ
ムレータ６を連絡する管路７ｂに接続してある。In FIG. 2, reference numeral 1 is a compressor for compressing a refrigerant such as a chlorofluorocarbon refrigerant and discharging it to a water-cooled condenser 2c, 3 is a dryer for removing water in the refrigerant, 4 is an expansion valve, and 5 is an expansion valve. An evaporator for evaporating the liquefied refrigerant and an accumulator 6 are provided. Reference numeral 14 indicates inlet cooling water, and 15 indicates outlet cooling water. A stop valve 12 and a branch circuit 8 for recovering a refrigerant liquid are provided in a pipe line 7c connecting the dryer 3 and the expansion valve 4, and one end of the stop valve 12 is connected to a refrigerant liquid recovery cylinder 10. A stop valve 11 is provided in the pipeline between the expansion valve 4 and the connection point of the branch circuit 8 provided in the pipeline 7c that connects the dryer 3 and the expansion valve 4. On the other hand, a branch circuit 9 and a stop valve 13 for reducing the pressure in the refrigerant liquid recovery cylinder 10 are provided in a pipe line 7b connecting the evaporator 5 and the accumulator 6. One end of the branch circuit 9 is connected to the refrigerant liquid recovery cylinder 10 and the other end is connected to a pipe line 7b connecting the evaporator 5 and the accumulator 6.
【００１４】冷凍回路中の冷媒を回収する時は、止め弁
１１と止め弁１３を閉じ、回収ボンベ１０を開けて圧縮
機１を運転すると、液冷媒は回収ボンベ１０に回収され
る。冷媒の回収運転を続けると、回収ボンベ１０内の圧
力と温度が高くなり（約４５〜５０℃）冷媒の回収がし
ずらくなるので、圧縮機１の運転を停止し、止め弁１２
を閉め、止め弁１３を開の状態とし、冷媒を蒸発させて
分岐回路９を経て圧縮機１の低圧側に導入することによ
り回収ボンベ１０の圧力と温度を低下できる（約２５〜
３０℃）。そして、再度前記の冷媒の回収のための運転
を行う。この操作を繰り返すことにより短時間で効率良
く冷媒を回収することができる。以上のように、冷凍回
路の特定の位置に分岐管と止め弁を付けることにより冷
媒液回収ボンベ中に簡単に冷媒を回収できる。When the refrigerant in the refrigeration circuit is recovered, the stop valve 11 and the stop valve 13 are closed, the recovery cylinder 10 is opened, and the compressor 1 is operated, whereby the liquid refrigerant is recovered in the recovery cylinder 10. When the refrigerant recovery operation is continued, the pressure and temperature inside the recovery cylinder 10 increase (about 45 to 50 ° C.), and it becomes difficult to recover the refrigerant. Therefore, the operation of the compressor 1 is stopped and the stop valve 12
Is closed, the stop valve 13 is opened, and the refrigerant is evaporated and introduced into the low pressure side of the compressor 1 via the branch circuit 9 to reduce the pressure and temperature of the recovery cylinder 10 (about 25 to
30 ° C). Then, the operation for recovering the refrigerant is performed again. By repeating this operation, the refrigerant can be efficiently recovered in a short time. As described above, the refrigerant can be easily recovered in the refrigerant liquid recovery cylinder by attaching the branch pipe and the stop valve to the specific position of the refrigeration circuit.
【００１５】[0015]
【発明の効果】本発明の請求項１の冷凍装置は、冷凍装
置の修理・移転・廃棄などの場合に、使用していた冷媒
を大気に放出することなく、圧縮機を運転して空冷凝縮
器で液化した冷媒を回収用ボンベに回収することができ
る。そして、冷媒の回収中に、回収用ボンベ内の圧力が
高くなった場合には回収を一時中断して、回収用ボンベ
内の圧力を冷凍機の低圧側に逃がしてボンベ内圧力を低
下させる。この冷媒回収と回収ボンベ内の圧力低下の操
作を繰り返すことにより、短時間で効率良く冷媒を回収
できる。According to the refrigeration system of claim 1 of the present invention, when the refrigeration system is repaired, relocated, or discarded, the compressor is operated and the air-cooled condensing is performed without releasing the used refrigerant to the atmosphere. The liquefied refrigerant in the container can be recovered in the recovery cylinder. Then, when the pressure in the recovery cylinder becomes high during the recovery of the refrigerant, the recovery is temporarily interrupted and the pressure in the recovery cylinder is released to the low pressure side of the refrigerator to reduce the pressure in the cylinder. By repeating the operation of recovering the refrigerant and lowering the pressure in the recovery cylinder, the refrigerant can be efficiently recovered in a short time.
【００１６】本発明の請求項２の冷凍装置は、冷凍装置
の修理・移転・廃棄などの場合に、使用していた冷媒を
大気に放出することなく、圧縮機を運転して水冷凝縮器
で液化した冷媒を回収用ボンベに回収することができ
る。そして、冷媒の回収中に、回収用ボンベ内の圧力が
高くなった場合には回収を一時中断して、回収用ボンベ
内の圧力を冷凍機の低圧側に逃がしてボンベ内圧力を低
下させる。この冷媒回収と回収用ボンベ内の圧力低下の
操作を繰り返すことにより、短時間で効率良く冷媒を回
収することができる。In the refrigerating apparatus according to the second aspect of the present invention, when the refrigerating apparatus is repaired, moved, or discarded, the compressor is operated and the water-cooled condenser is operated without releasing the used refrigerant to the atmosphere. The liquefied refrigerant can be recovered in a recovery cylinder. Then, when the pressure in the recovery cylinder becomes high during the recovery of the refrigerant, the recovery is temporarily interrupted and the pressure in the recovery cylinder is released to the low pressure side of the refrigerator to reduce the pressure in the cylinder. By repeating the operation of recovering the refrigerant and lowering the pressure in the recovery cylinder, the refrigerant can be efficiently recovered in a short time.
【００１７】本発明の請求項３の冷凍装置は、使用した
フロン系冷媒を大気に放出することなく、回収用ボンベ
に短時間で効率良く回収できる。In the refrigerating apparatus according to the third aspect of the present invention, the used CFC-based refrigerant can be efficiently collected in a collecting cylinder in a short time without releasing it to the atmosphere.
【００１８】本発明の冷凍装置は簡単な構成からなるの
で経済的である上、効果が大きいので産業上の利用価値
が高い。Since the refrigerating apparatus of the present invention has a simple structure, it is economical and has a great effect, so that it has a high industrial utility value.
【図１】 本発明の冷凍装置の冷凍回路の実施例を示
す。FIG. 1 shows an embodiment of a refrigerating circuit of a refrigerating apparatus of the present invention.
【図２】 本発明の他の冷凍装置の冷凍回路の実施例を
示す。FIG. 2 shows an embodiment of a refrigeration circuit of another refrigeration apparatus of the present invention.
【符号の説明】 １ 圧縮機 ２ａ、２ｃ 凝縮器 ２ｂ レシーバタンク ３ ドライヤ ４ 膨張弁 ５ 蒸発器 ６ アキュムレータ ７ａ、７ｂ、７ｃ、８、９ 管路 １０ 冷媒液回収ボンベ １１、１２、１３ 止め弁 １４、１５ 冷却水[Explanation of Codes] 1 Compressor 2a, 2c Condenser 2b Receiver tank 3 Dryer 4 Expansion valve 5 Evaporator 6 Accumulator 7a, 7b, 7c, 8, 9 Pipe line 10 Refrigerant liquid recovery cylinder 11, 12, 13 Stop valve 14 , 15 cooling water
Claims (3)
た冷媒を入れるレシーバタンク、ドライヤ、膨張弁、液
化冷媒を蒸発させる蒸発器、アキュムレータおよび蒸発
気化した冷媒を圧縮して空冷凝縮器に吐出する圧縮機な
どを備えた冷凍装置において、空冷凝縮器とレシーバタ
ンクを連絡する管路に止め弁と冷媒液回収用の分岐回路
を設けてその一端を冷媒液回収ボンベに連結するととも
に、蒸発器とアキュムレータを連絡する管路に前記冷媒
液回収ボンベ内の圧力を低下させるための分岐回路と止
め弁を設けたことを特徴とする冷凍装置。1. An air-cooled condenser that condenses and liquefies a refrigerant, a receiver tank that contains condensed refrigerant, a dryer, an expansion valve, an evaporator that evaporates a liquefied refrigerant, an accumulator, and a refrigerant that has been vaporized and evaporated is compressed and discharged to an air-cooled condenser. In a refrigeration system equipped with a compressor, etc., a stop valve and a branch circuit for collecting refrigerant liquid are provided in a pipe line that connects an air-cooled condenser and a receiver tank, and one end of the branch circuit is connected to a refrigerant liquid recovery cylinder, and an evaporator is used. A refrigerating device comprising a branch circuit and a stop valve for lowering the pressure in the refrigerant liquid recovery cylinder in a pipe line connecting the accumulator and the accumulator.
ヤ、膨張弁、液化冷媒を蒸発させる蒸発器、アキュムレ
ータおよび蒸発気化した冷媒を圧縮して水冷凝縮器に吐
出する圧縮機などを備えた冷凍装置において、水冷凝縮
器と膨張弁を連絡する管路に止め弁と冷媒液回収用の分
岐回路を設けてその一端を冷媒液回収ボンベに連結する
とともに、蒸発器とアキュムレータを連絡する管路に前
記冷媒液回収ボンベ内の圧力を低下させるための分岐回
路と止め弁を設けたことを特徴とする冷凍装置。2. A refrigeration including a water-cooled condenser for condensing and liquefying the refrigerant, a dryer, an expansion valve, an evaporator for evaporating the liquefied refrigerant, an accumulator, and a compressor for compressing the evaporated and vaporized refrigerant and discharging it to the water-cooled condenser. In the device, a stop valve and a branch circuit for refrigerant liquid recovery are provided in the conduit connecting the water-cooled condenser and the expansion valve, one end of which is connected to the refrigerant liquid recovery cylinder, and the conduit connecting the evaporator and accumulator is connected. A refrigeration system comprising a branch circuit and a stop valve for reducing the pressure in the refrigerant liquid recovery cylinder.
いは請求項２記載の冷凍装置。3. The refrigerating apparatus according to claim 1, wherein the refrigerant is a chlorofluorocarbon refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7226112A JPH0953871A (en) | 1995-08-11 | 1995-08-11 | Freezer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7226112A JPH0953871A (en) | 1995-08-11 | 1995-08-11 | Freezer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0953871A true JPH0953871A (en) | 1997-02-25 |
Family
ID=16840031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7226112A Pending JPH0953871A (en) | 1995-08-11 | 1995-08-11 | Freezer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0953871A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100781922B1 (en) * | 2005-04-02 | 2007-12-24 | 김문용 | Unified manhole for drain pipe and underground cable |
| JP2009156563A (en) * | 2007-12-28 | 2009-07-16 | Mac:Kk | Self-balancing condensing and evaporating heat exchanger device, refrigerating cycle incorporating it, and partial recovery device for condensate using the same |
| JP2015087071A (en) * | 2013-10-31 | 2015-05-07 | 株式会社富士通ゼネラル | Air conditioner |
| WO2016017927A1 (en) * | 2014-07-29 | 2016-02-04 | 한온시스템 주식회사 | Automotive air conditioning system |
| CN110411082A (en) * | 2019-07-23 | 2019-11-05 | 珠海格力电器股份有限公司 | Refrigerant recovery system and its control method, device, controller and air-conditioning system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115258U (en) * | 1974-07-22 | 1976-02-04 | ||
| JPH05141816A (en) * | 1991-11-25 | 1993-06-08 | Sharp Corp | Refrigerating equipment having refrigerant recoverying device |
| JPH05164437A (en) * | 1991-12-12 | 1993-06-29 | Hitachi Ltd | Air conditioner |
-
1995
- 1995-08-11 JP JP7226112A patent/JPH0953871A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5115258U (en) * | 1974-07-22 | 1976-02-04 | ||
| JPH05141816A (en) * | 1991-11-25 | 1993-06-08 | Sharp Corp | Refrigerating equipment having refrigerant recoverying device |
| JPH05164437A (en) * | 1991-12-12 | 1993-06-29 | Hitachi Ltd | Air conditioner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100781922B1 (en) * | 2005-04-02 | 2007-12-24 | 김문용 | Unified manhole for drain pipe and underground cable |
| JP2009156563A (en) * | 2007-12-28 | 2009-07-16 | Mac:Kk | Self-balancing condensing and evaporating heat exchanger device, refrigerating cycle incorporating it, and partial recovery device for condensate using the same |
| JP2015087071A (en) * | 2013-10-31 | 2015-05-07 | 株式会社富士通ゼネラル | Air conditioner |
| WO2016017927A1 (en) * | 2014-07-29 | 2016-02-04 | 한온시스템 주식회사 | Automotive air conditioning system |
| CN110411082A (en) * | 2019-07-23 | 2019-11-05 | 珠海格力电器股份有限公司 | Refrigerant recovery system and its control method, device, controller and air-conditioning system |
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