JPH09152233A - Refrigerant recovering device - Google Patents
Refrigerant recovering deviceInfo
- Publication number
- JPH09152233A JPH09152233A JP31074795A JP31074795A JPH09152233A JP H09152233 A JPH09152233 A JP H09152233A JP 31074795 A JP31074795 A JP 31074795A JP 31074795 A JP31074795 A JP 31074795A JP H09152233 A JPH09152233 A JP H09152233A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- recovery device
- oil
- compressor
- container
- 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.)
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Links
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば家庭用の
電気冷蔵庫、或いはクーラ、自動車用クーラ等のよう
に、例えばフロンを冷媒として動作する冷媒使用機器か
ら冷媒を回収する冷媒回収装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant recovery device for recovering a refrigerant from a refrigerant-using device such as a household electric refrigerator, a cooler, an automobile cooler, or the like, which operates using freon as a refrigerant.
【０００２】[0002]
【従来の技術】従来より冷媒を回収する装置が種々提案
されている。図３は実開平３−４８６７６号公報に開示
された冷媒回収装置の構成を示す。この公報に開示され
た冷媒回収装置１は被冷媒回収装置２からホース３を通
じて吸引した冷媒とオイルは、オイルセパレータ４でオ
イルと冷媒に分離され、アキュームレータ６を通じてコ
ンプレッサ５に吸引され、圧縮されて再度オイルセパレ
ータ７でオイルを分離し、凝縮器８で冷媒を冷却して液
化し、その液化した冷媒をドライヤ９を通じて冷媒回収
容器１１に回収する構成とされている。2. Description of the Related Art Conventionally, various devices for recovering a refrigerant have been proposed. FIG. 3 shows the configuration of the refrigerant recovery device disclosed in Japanese Utility Model Laid-Open No. 3-48676. In the refrigerant recovery device 1 disclosed in this publication, the refrigerant and the oil sucked from the refrigerant recovery target device 2 through the hose 3 are separated into the oil and the refrigerant by the oil separator 4, and are sucked by the compressor 5 through the accumulator 6 and compressed. The oil is separated again by the oil separator 7, the refrigerant is cooled and liquefied by the condenser 8, and the liquefied refrigerant is recovered in the refrigerant recovery container 11 through the dryer 9.
【０００３】ここで、オイルセパレータ７で分離したオ
イルは配管７ａを通じてコンプレッサ５の吸引口側に戻
され、コンプレッサ５の潤滑オイルとして循環させ、コ
ンプレッサ５の運転を維持させる構成とされる。The oil separated by the oil separator 7 is returned to the suction port side of the compressor 5 through the pipe 7a and circulated as lubricating oil for the compressor 5 to maintain the operation of the compressor 5.
【０００４】[0004]
【発明が解決しようとする課題】図３に示した冷媒回収
装置１ではオイルセパレータ４で冷媒とオイルを分離し
ているが、オイルセパレータ４に流れ込むオイルには冷
媒が多量に液化した状態で混入している。このため、オ
イルセパレータ４が満杯になった状態でオイルセパレー
タ４からオイルを排出させオイル回収容器に回収したと
しても、そのオイルには多量に冷媒が含まれており、こ
の冷媒が徐々に気化して大気に放出される不都合が生じ
る。In the refrigerant recovery device 1 shown in FIG. 3, the refrigerant and the oil are separated by the oil separator 4. However, the oil flowing into the oil separator 4 is mixed in a large amount of the refrigerant in a liquefied state. doing. Therefore, even if the oil is discharged from the oil separator 4 and collected in the oil recovery container when the oil separator 4 is full, the oil contains a large amount of refrigerant, and this refrigerant is gradually vaporized. As a result, it is released into the atmosphere.
【０００５】また、特に冬期ではオイルセパレータ４に
おける冷媒の気化率が低いため、冷媒の回収効率が著し
く悪くなる欠点がある。また、被冷媒回収装置２から全
ての冷媒を回収するまでの時間が長く掛かる欠点もあ
る。更にまた、凝縮器８において冷媒を液化して冷媒回
収容器１１に冷媒を回収しているが、冷媒回収容器１１
に回収する冷媒は常温であるため、冷媒回収容器１１内
で気化し易い。このために回収の進行と共に冷媒回収容
器１１内の圧力が上昇するため、冷媒回収容器１１内に
多くの冷媒を回収することが困難になる。従って、冷媒
回収容器１１の数が多く必要になる欠点もある。Further, especially in the winter season, since the vaporization rate of the refrigerant in the oil separator 4 is low, there is a drawback that the recovery efficiency of the refrigerant is significantly deteriorated. There is also a drawback that it takes a long time to collect all the refrigerant from the refrigerant recovery device 2. Furthermore, although the refrigerant is liquefied in the condenser 8 and recovered in the refrigerant recovery container 11, the refrigerant recovery container 11
Since the refrigerant to be recovered is normal temperature, it is easily vaporized in the refrigerant recovery container 11. For this reason, the pressure in the refrigerant recovery container 11 increases as the recovery progresses, and it becomes difficult to recover a large amount of the refrigerant in the refrigerant recovery container 11. Therefore, there is a drawback that a large number of refrigerant recovery containers 11 are required.
【０００６】この欠点を解決する一つの方法として、特
開昭６３−２５１７６７号公報に開示された冷媒回収装
置がある。この公報に開示された冷媒回収装置は冷媒回
収容器１１を別に設けた冷凍サイクルによって冷却し、
冷媒回収容器への冷媒の収容率を高めようとしている。
しかしながら、この公報の冷媒回収装置では共通の駆動
モータによって回収用の真空ポンプと冷凍サイクル用の
コンプレッサを駆動しているため大きな駆動源を必要と
し、また消費電力も大きくなる欠点がある。また真空ポ
ンプ及びコンプレッサを使用するため、高価な構成要素
を２個も必要なためコストが高くなる欠点もある。As one method for solving this drawback, there is a refrigerant recovery device disclosed in Japanese Patent Laid-Open No. 63-251767. The refrigerant recovery device disclosed in this publication cools the refrigerant recovery container 11 by a refrigeration cycle provided separately,
It is trying to increase the percentage of refrigerant contained in the refrigerant recovery container.
However, in the refrigerant recovery apparatus of this publication, a common drive motor drives a recovery vacuum pump and a refrigeration cycle compressor, so that a large drive source is required and power consumption becomes large. In addition, since a vacuum pump and a compressor are used, two expensive components are required, which results in a high cost.
【０００７】この発明の目的は、回収したオイルに含ま
れる冷媒の含有量を少なくすることができ、しかも短時
間にオイルと冷媒とを回収することができる冷媒回収装
置及び回収容器に多量の冷媒を収容することができる冷
媒回収装置を提供しようとするものである。The object of the present invention is to reduce the content of the refrigerant contained in the recovered oil, and to collect the oil and the refrigerant in a short time. The present invention is intended to provide a refrigerant recovery device that can accommodate the.
【０００８】[0008]
【課題を解決するための手段】この発明の請求項１では
被冷媒回収装置とコンプレッサとの間にオイル回収器を
設けると共に、このオイル回収器をコンプッサの吐出口
側に得られる高温・高圧の冷媒を用いて加熱する加熱手
段を設けた点、及び請求項２ではコンプレッサの吐出口
側と冷媒回収容器との間に液化された冷媒の一部を気化
させて冷却効果を得る冷却手段を設け、この冷却手段に
よって冷媒回収容器に回収する冷媒の温度を低下させ、
気化率を低下させて冷媒回収容器に回収する構成を提案
するものである。According to claim 1 of the present invention, an oil recovery device is provided between the refrigerant recovery device and the compressor, and the high temperature and high pressure oil recovery device is provided on the discharge port side of the compressor. A heating means is provided for heating using a refrigerant, and in claim 2, a cooling means is provided between the discharge side of the compressor and the refrigerant recovery container to vaporize a part of the liquefied refrigerant to obtain a cooling effect. , Lowering the temperature of the refrigerant to be recovered in the refrigerant recovery container by this cooling means,
It proposes a configuration in which the vaporization rate is reduced and the vapor is recovered in a refrigerant recovery container.
【０００９】従って、この発明の請求項１で提案した冷
媒回収装置によれば、被冷媒回収装置から吸引したオイ
ルを、オイル回収器においてコンプレッサの吐出口側に
得られる高温・高圧の冷媒ガスを利用して加熱する構成
にしたから、オイルに含まれる冷媒の量を少なくするこ
とができる。また、オイル回収器における冷媒の気化を
促進させるから、短時間に冷媒を回収することができる
利点も得られる。Therefore, according to the refrigerant recovery apparatus proposed in claim 1 of the present invention, the oil sucked from the refrigerant recovery apparatus is used as the high-temperature, high-pressure refrigerant gas obtained at the discharge side of the compressor in the oil recovery device. Since it is configured to be heated by utilizing it, the amount of the refrigerant contained in the oil can be reduced. Further, since the vaporization of the refrigerant in the oil recovery device is promoted, there is an advantage that the refrigerant can be recovered in a short time.
【００１０】更に、この発明の請求項２で提案した冷媒
回収装置では、液化した冷媒を、この液化した冷媒の一
部を気化させて冷却作用を得、この冷却作用を利用して
液化された冷媒を冷却するから、特別に冷却手段を用い
ることなく、回収容器に回収する冷媒の温度を低下させ
ることができる。これにより冷媒回収容器の内に多くの
液化された冷媒を収容することができる利点が得られ
る。Further, in the refrigerant recovery apparatus proposed in claim 2 of the present invention, a liquefied refrigerant is vaporized by partially vaporizing the liquefied refrigerant to obtain a cooling action, and the cooling action is liquefied. Since the refrigerant is cooled, the temperature of the refrigerant recovered in the recovery container can be lowered without using a special cooling means. This has the advantage that a large amount of liquefied refrigerant can be accommodated in the refrigerant recovery container.
【００１１】この発明の請求項４では、コンプレッサの
吸引口側及び吐出口側の双方に、入口側にはオイルを加
熱する加熱手段を設け、吐出口側には冷媒を冷却する冷
却手段を設けた構成を提案したから、この請求項４によ
る発明によれば被冷媒回収装置からの冷媒の回収時間を
短くすることができ、更に回収容器への液化された冷媒
の収容率を高めることができる利点が得られる。According to a fourth aspect of the present invention, heating means for heating the oil is provided on the inlet side and cooling means for cooling the refrigerant is provided on the inlet side on both the suction port side and the discharge port side of the compressor. According to the invention of claim 4, the time required for collecting the refrigerant from the refrigerant-collected device can be shortened, and the storage rate of the liquefied refrigerant in the recovery container can be increased. Benefits are obtained.
【００１２】[0012]
【発明の実施の形態】図１に示す実施例を用いてこの発
明の実施の形態を説明する。図中１はこの発明による冷
媒回収装置の全体を示す。冷媒回収装置１からホース３
が導出され、ホース３の先端に被冷媒回収装置２の冷凍
サイクルを接続する。被冷媒回収装置２としては、例え
ば電気冷蔵庫、クーラ、自動車用クーラ等が考えられ
る。ホース３の先端には例えばタッチプライヤが取付け
られ、タッチプライヤに設けた針を被冷媒回収装置２の
冷凍サイクルの配管に突き刺し、針を通じて冷媒とオイ
ルを吸引する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the embodiment shown in FIG. Reference numeral 1 in the figure shows the entire refrigerant recovery apparatus according to the present invention. Refrigerant recovery device 1 to hose 3
And the refrigeration cycle of the refrigerant recovery device 2 is connected to the tip of the hose 3. As the refrigerant recovery device 2, for example, an electric refrigerator, a cooler, an automobile cooler, or the like can be considered. For example, a touch plier is attached to the tip of the hose 3, and a needle provided on the touch plier is pierced into the pipe of the refrigeration cycle of the refrigerant recovery device 2 to suck refrigerant and oil through the needle.
【００１３】ホース３を通じて吸引した冷媒とオイル
は、この発明で提案するオイル回収器２１に吸い込まれ
る。オイル回収器２１は比較的容積が大きい、例えば５
〜１０リットル程度の耐圧容器によって構成することが
できる。この容器の上面側に吸引口２１Ａと吐出口２１
Ｂを設け、吸引口２１Ａにホース３を接続し、吐出口２
１Ｂに必要に応じて小型オイルセパレータ４を接続し、
この小型オイルセパレータ４とアキュームレータ６を通
じてコンプレッサ５の吸引口５Ａに接続する。The refrigerant and oil sucked through the hose 3 are sucked into the oil recovery device 21 proposed in the present invention. The oil collector 21 has a relatively large volume, for example, 5
It can be constituted by a pressure resistant container of about 10 liters. A suction port 21A and a discharge port 21 are provided on the upper surface side of this container.
B is provided, the hose 3 is connected to the suction port 21A, and the discharge port 2
Connect a small oil separator 4 to 1B if necessary,
The small oil separator 4 and the accumulator 6 are connected to the suction port 5A of the compressor 5.
【００１４】コンプレッサ５の吐出口５Ｂにはオイルセ
パレータ７を接続し、オイルセパレータ７を通じてオイ
ル回収器２１の内部に設けた加熱手段２２に接続し、加
熱手段２２を通じて凝縮器８に接続し、凝縮器８を通じ
て、液化された冷媒Ｊを収容する容器２３に接続する。
また、この発明では、コンプレッサ５とオイル回収器２
１の間を機械的連結手段２７で連結し、オイル回収器２
１に振動を与え、振動によってもオイルから冷媒を放出
させる構成としている。An oil separator 7 is connected to the discharge port 5B of the compressor 5, is connected to the heating means 22 provided inside the oil collector 21 through the oil separator 7, and is connected to the condenser 8 through the heating means 22 for condensation. It is connected to the container 23 containing the liquefied refrigerant J through the container 8.
Further, in the present invention, the compressor 5 and the oil recovery unit 2
1 is connected by a mechanical connecting means 27, and the oil collector 2
1 is vibrated, and the refrigerant also releases the refrigerant from the vibration.
【００１５】容器２３はオイル回収器２１と同様に、比
較的大きい容積を持つ耐圧容器で構成する。この耐圧容
器に冷媒流入口２３Ａと冷媒流出口２３Ａと、排気口２
３Ｂとを設け、冷媒流入口２３Ａに凝縮器８を接続し、
冷媒流出口２３Ｂに切替弁２４を通じて、例えば２個の
冷媒回収容器１１のいずれかを接続する。更に、排気口
２３Ｃには、例えば容器２３に溜まる不凝縮成分（空
気）を逃がすことに用いるフラッシュバルブ２３Ｄを接
続する。Like the oil recovery unit 21, the container 23 is a pressure resistant container having a relatively large volume. A refrigerant inlet 23A, a refrigerant outlet 23A, and an exhaust port 2 are provided in this pressure resistant container.
3B is provided, the condenser 8 is connected to the refrigerant inlet 23A,
For example, one of the two refrigerant recovery containers 11 is connected to the refrigerant outlet port 23B through the switching valve 24. Further, the exhaust port 23C is connected to, for example, a flash valve 23D used for letting out the non-condensable component (air) accumulated in the container 23.
【００１６】容器２３の内部には比較的管径が細いパイ
プをコイル状に巻回して構成した冷却手段２６を設け
る。この冷却手段２６は一端が容器２３の内部で開口し
て配置され、容器２３に注入される液化された冷媒Ｊを
吸い込む動作を行う。冷却手段２６を構成するパイプの
他端は容器２３から導出され、流量調整弁２５を通じて
コンプレッサ５の吸引口５Ａ側（低圧側）に接続する。
図の例では小型オイルセパレータ４の入口側に接続した
場合を示す。Inside the container 23, there is provided a cooling means 26 constituted by winding a pipe having a relatively small diameter in a coil shape. The cooling means 26 is arranged so that one end thereof is opened inside the container 23 and sucks the liquefied refrigerant J injected into the container 23. The other end of the pipe forming the cooling means 26 is led out from the container 23 and is connected to the suction port 5A side (low pressure side) of the compressor 5 through the flow rate adjusting valve 25.
The example shown in the figure shows the case where the small oil separator 4 is connected to the inlet side.
【００１７】このように冷却手段２６の他端を低圧側に
接続することにより、容器２３内の圧力に従って液化さ
れた冷媒Ｊが冷却手段２６を構成するパイプに進入し、
冷却手段２６を通じて容器２３の外に排出される。この
排出流量は流量調整弁２５でわずかな量に調整され、コ
ンプレッサ５の吸引口５Ａ側に排出させる。コンプレッ
サ５の吸引口５Ａ側は低圧であるから、液化された冷媒
Ｊは冷却手段２６を流れる間に気化し、その気化熱によ
り吸熱し、容器２３内で液化されている冷媒Ｊを冷却す
る。従って、冷媒流出口２３Ｂから冷媒回収容器１１に
送り込まれる冷媒Ｊは温度が下げられ、冷媒回収容器１
１に効率よく注入される。つまり、気化し難い状態にあ
るから、冷媒回収容器１１内の気圧が上昇し難いため、
液状の冷媒の収容量を大きくできる。By connecting the other end of the cooling means 26 to the low pressure side in this way, the refrigerant J liquefied according to the pressure in the container 23 enters the pipe constituting the cooling means 26,
It is discharged to the outside of the container 23 through the cooling means 26. This discharge flow rate is adjusted to a slight amount by the flow rate adjusting valve 25 and is discharged to the suction port 5A side of the compressor 5. Since the suction port 5A side of the compressor 5 has a low pressure, the liquefied refrigerant J is vaporized while flowing through the cooling means 26 and absorbs heat due to its vaporization heat to cool the liquefied refrigerant J in the container 23. Therefore, the temperature of the refrigerant J sent to the refrigerant recovery container 11 from the refrigerant outlet 23B is lowered, and the refrigerant recovery container 1
1 is efficiently injected. That is, since it is in a state of being difficult to vaporize, the atmospheric pressure in the refrigerant recovery container 11 is hard to rise,
The amount of liquid refrigerant accommodated can be increased.
【００１８】上述では、オイル回収器２１と冷却手段２
６の双方を設けた例を説明したが、使用環境によってい
ずれか一方を省略した構成の冷媒回収装置も考えられ
る。つまり、常時気温が高い地域で使用する場合には、
オイル回収器２１を省略した構成の冷媒回収装置でも実
用することができる。また常時気温が低い地域で使用す
る場合には、冷却手段２６を省略してもよい。In the above description, the oil collector 21 and the cooling means 2
Although the example in which both of 6 are provided has been described, a refrigerant recovery device having a configuration in which one of them is omitted may be considered depending on the usage environment. In other words, when using it in an area where the temperature is always high,
A refrigerant recovery device having a configuration in which the oil recovery device 21 is omitted can also be used practically. Further, when it is used in an area where the temperature is constantly low, the cooling means 26 may be omitted.
【００１９】また、オイル回収器２１はオイルが満杯に
なると排出弁２１Ｄによりオイルを回収容器（特に図示
しない）に回収するが、この場合、排出弁２１Ｄを接続
した排出口２１Ｃはオイル回収器２１の底部より少し高
い、少なくとも加熱手段２２の一部より高い位置に設
け、排出弁２１Ｄによってオイルを排出したとしても、
加熱手段２２の一部がオイルに浸っている状態を維持さ
せる。When the oil collecting device 21 is full, the oil collecting device 21 collects the oil in a collecting container (not shown) with the discharging valve 21D. In this case, the discharging port 21C to which the discharging valve 21D is connected is the oil collecting device 21. Even if the oil is discharged by the discharge valve 21D at a position slightly higher than the bottom of the heating means and at least higher than a part of the heating means 22,
The state where a part of the heating means 22 is immersed in oil is maintained.
【００２０】このように、オイルの一部を残しておく構
成にすることにより、加熱手段２２の熱交換効率を常に
高効率の状態に維持することができる。つまり、加熱手
段２２を常にオイルに浸っている状態に維持することに
より、熱交換効率を常に高効率の状態に維持できる利点
が得られる。また、この発明においては、加熱手段及び
冷却手段で利用するエネルギは冷媒が持つ熱エネルギを
利用するから、加熱及び冷却には電圧を全く必要としな
い。従って、電力使用量が小さい冷媒回収装置を提供す
ることができる利点が得られ、可搬型の装置として極め
て有利である。図２はこの発明の請求項５及び６で提案
する発明の実施の形態を示す。この例ではコンプレッサ
５の吐出口側と凝縮器８の入口側の間にバイパス通路３
０と、このバイパス通路３０を開閉する弁３１を設けた
実施の形態を示す。弁３１は通常は閉じた状態に設定さ
れるが、特に夏の温度が高い場合には開に設定し、コン
プレッサ５の出力を直接凝縮器８に供給するように構成
したものである。As described above, the heat exchange efficiency of the heating means 22 can be always maintained in a high efficiency state by leaving a part of the oil. That is, by maintaining the heating means 22 in a state of being constantly immersed in oil, there is an advantage that the heat exchange efficiency can be maintained in a highly efficient state at all times. Further, in the present invention, the energy used in the heating means and the cooling means uses the thermal energy of the refrigerant, and therefore no voltage is required for heating and cooling. Therefore, it is possible to provide an advantage that a refrigerant recovery device that consumes a small amount of electric power can be provided, which is extremely advantageous as a portable device. FIG. 2 shows an embodiment of the invention proposed in claims 5 and 6 of the present invention. In this example, the bypass passage 3 is provided between the discharge side of the compressor 5 and the inlet side of the condenser 8.
0 and a valve 31 for opening and closing the bypass passage 30 are shown. The valve 31 is normally set in a closed state, but is set to be opened particularly when the temperature in summer is high, and the output of the compressor 5 is directly supplied to the condenser 8.
【００２１】つまり、夏の高温時にはオイル回収器２１
は自然環境温度により４０°Ｃ程度の高温に上昇する。
このため、加熱手段２２をそのまま動作させると、オイ
ル回収器２１の温度が上昇し過ぎるため、このような場
合はバイパス通路３０を開き、加熱手段２２の加熱動作
を低下させるようにしたものである。また、この実施の
形態ではコンプレッサ５の入口側で冷媒を分岐させ、そ
の分岐した冷媒にコンプレッサ５を駆動するモータから
熱交換させ、熱交換した冷媒をオイル回収器２１に通
し、オイル回収器２１をコンプレッサ５の廃熱により加
熱するように構成した例を示す。このようにコンプレッ
サ５の廃熱を利用することにより、冬の低温化でもオイ
ル回収器２１を加熱するエネルギを確実に得ることがで
きる利点が得られる。That is, when the temperature is high in summer, the oil recovery unit 21
Rises to a high temperature of about 40 ° C depending on the natural environment temperature.
For this reason, if the heating means 22 is operated as it is, the temperature of the oil recovery unit 21 rises too much, and in such a case, the bypass passage 30 is opened to lower the heating operation of the heating means 22. . Further, in this embodiment, the refrigerant is branched at the inlet side of the compressor 5, the branched refrigerant is heat-exchanged from the motor driving the compressor 5, the heat-exchanged refrigerant is passed through the oil recovery unit 21, and the oil recovery unit 21 is transferred. An example will be shown in which is heated by the waste heat of the compressor 5. By utilizing the waste heat of the compressor 5 as described above, there is an advantage that the energy for heating the oil recovery unit 21 can be reliably obtained even when the temperature is lowered in winter.
【００２２】更にこの図２の実施例では、冷却手段２６
を構成するコイル状に巻回したパイプを除去し、単に容
器２３と低圧側の通路とを結ぶ配管２８とその途中に設
けた流量調整弁２５の構成だけで冷却手段を構成した場
合を示す。このように構成した場合も流量調整弁２５を
開けることにより、容器２３内の冷媒Ｊが低圧側に流
れ、容器２３内で気化するから、その気化熱により容器
２３内を冷却することができ、結果的に冷媒Ｊを冷却す
ることができる。Further, in the embodiment of FIG. 2, the cooling means 26
The case where the cooling means is configured only by removing the coil-wound pipe configuring the above, and simply configuring the pipe 28 connecting the container 23 and the passage on the low pressure side and the flow rate adjusting valve 25 provided in the middle thereof is shown. Even in the case of such a configuration, by opening the flow rate adjusting valve 25, the refrigerant J in the container 23 flows to the low pressure side and vaporizes in the container 23, so that the inside of the container 23 can be cooled by the heat of vaporization, As a result, the refrigerant J can be cooled.
【００２３】[0023]
【発明の効果】以上説明したように、この発明によれば
オイル回収器２１を加熱する加熱手段２２及びオイル回
収器２１にコンプレッサ５から振動を与える構成を設け
たことにより、オイルに残留する冷媒の量を少なくする
ことができる。またオイルの中から冷媒を効率よく放出
させることができるから、短時間に多量の冷媒を回収す
ることができる。As described above, according to the present invention, the heating means 22 for heating the oil recovery device 21 and the structure for vibrating the oil recovery device 21 from the compressor 5 provide the refrigerant remaining in the oil. The amount of can be reduced. Moreover, since the refrigerant can be efficiently released from the oil, a large amount of the refrigerant can be recovered in a short time.
【００２４】更に液化した冷媒を冷却する冷却手段２６
を設けた場合には、冷媒回収容器１１への冷媒の収容率
を高めることができる。よって少ない数の冷媒回収容器
に多量の冷媒を回収することができ、保管場所の占有率
を小さくすることができる等の利点が得られる。また、
容器２３の上部にフラッシュバルブ２３Ｄを設け、この
フラッシュバルブ２３Ｄにより容器２３に留まる空気等
の不凝縮成分を廃気できる構成としたから、空気等の膨
張により容器２３内の圧力が上昇することも阻止するこ
とができる。この点でも冷媒を冷媒回収容器１１に効率
よく回収できる利点が得られる。Cooling means 26 for cooling the liquefied refrigerant
When the above is provided, it is possible to increase the accommodation rate of the refrigerant in the refrigerant recovery container 11. Therefore, a large amount of refrigerant can be recovered in a small number of refrigerant recovery containers, and advantages such as a reduction in the occupation ratio of the storage location can be obtained. Also,
Since the flush valve 23D is provided above the container 23 and the non-condensable components such as the air remaining in the container 23 can be exhausted by the flush valve 23D, the pressure in the container 23 may rise due to the expansion of the air or the like. Can be stopped. In this respect as well, there is an advantage that the refrigerant can be efficiently recovered in the refrigerant recovery container 11.
【００２５】また、図２に示したように、バイパス通路
３０と弁３１を設けたことにより、夏の高温時でも安全
に回収作業を行うことができる利点も得られる。更にコ
ンプレッサ５の廃熱によりオイル回収器２１を加熱する
構成を付加しておくことにより、冬の低温時でもオイル
回収器２１を確実に加熱することができる利点が得られ
る。Further, as shown in FIG. 2, by providing the bypass passage 30 and the valve 31, it is possible to obtain an advantage that the recovery work can be safely carried out even at a high temperature in summer. Further, by adding the configuration for heating the oil recovery device 21 by the waste heat of the compressor 5, there is an advantage that the oil recovery device 21 can be reliably heated even at low temperatures in winter.
【図１】この発明の実施の形態を説明するための系統
図。FIG. 1 is a system diagram for explaining an embodiment of the present invention.
【図２】この発明の他の実施の形態を説明するための系
統図。FIG. 2 is a system diagram for explaining another embodiment of the present invention.
【図３】従来の技術を説明するための系統図。FIG. 3 is a system diagram for explaining a conventional technique.
１ 冷媒回収装置 ２ 被冷媒回収装置 ３ ホース ４ オイルセパレータ ５ コンプレッサ ５Ａ 吸引口 ５Ｂ 吐出口 ６ アキュームレータ ７ オイルセパレータ ８ 凝縮器 １１ 冷媒回収容器 ２１ オイル回収器 ２２ 加熱手段 ２３ 容器 ２４ 切替弁 ２６ 冷却手段 1 Refrigerant Recovery Device 2 Refrigerant Recovery Device 3 Hose 4 Oil Separator 5 Compressor 5A Suction Port 5B Discharge Port 6 Accumulator 7 Oil Separator 8 Condenser 11 Refrigerant Recovery Container 21 Oil Recovery Device 22 Heating Means 23 Container 24 Switching Valve 26 Cooling Means
Claims (7)
収装置からフロン及び潤滑オイルを回収する冷媒回収装
置において、 コンプレッサと、被冷媒回収装置との間に被冷媒回収装
置から放出されたオイルを蓄積させるオイル回収器を設
けると共に、このオイル回収器に蓄積されたオイルを上
記コンプレッサの吐出口側に得られる高圧、高温の冷媒
ガスによって加熱し、熱交換する構成としたことを特徴
とする冷媒回収装置。1. A refrigerant recovery device for recovering CFCs and lubricating oil from a refrigerant recovery device by suction force of a compressor, wherein oil discharged from the refrigerant recovery device is accumulated between the compressor and the refrigerant recovery device. A refrigerant recovery device characterized in that the oil recovery device is provided, and the oil accumulated in the oil recovery device is heated by a high-pressure, high-temperature refrigerant gas obtained at the discharge side of the compressor to perform heat exchange. apparatus.
収装置から冷媒及び潤滑オイルを吸引し、吸引した潤滑
オイルと冷媒をオイル分離器により分離し、分離した冷
媒をコンプレッサで加圧し、凝縮器で凝縮し液化して冷
媒回収容器に冷媒を回収する冷媒回収装置において、 上記凝縮器により液化された冷媒を収納し排出させる容
器と、この容器内に設けられ、容器内の加圧された冷媒
を上記コンプレッサの吸引口側に膨張放出させ、その膨
張放出によって上記容器内の冷媒を冷却する冷却手段と
を設けて構成したことを特徴とする冷媒回収装置。2. The suction force of the compressor sucks the refrigerant and the lubricating oil from the refrigerant recovery device, separates the sucked lubricating oil and the refrigerant with an oil separator, pressurizes the separated refrigerant with the compressor, and then with the condenser. In a refrigerant recovery device that condenses and liquefies to recover the refrigerant in a refrigerant recovery container, a container that stores and discharges the refrigerant that has been liquefied by the condenser, and a container that is provided in this container and that pressurizes the refrigerant in the container A refrigerant recovery device comprising: a cooling means for expanding and releasing the refrigerant in the suction port side of the compressor, and cooling the refrigerant in the container by the expanding and releasing.
上記容器の上部に蓄積される不凝縮成分を上記容器の外
部に放出させる弁を設けたことを特徴とする冷媒回収装
置。3. The refrigerant recovery device according to claim 2, wherein
A refrigerant recovery device comprising a valve for releasing the non-condensable component accumulated in the upper portion of the container to the outside of the container.
３記載の容器及び冷却手段の双方を具備して構成したこ
とを特徴とする冷媒回収装置。4. A refrigerant recovery device comprising both the oil recovery device according to claim 1 and the container and cooling means according to claim 3.
いて、上記コンプレッサの吐出口と、凝縮器との間にバ
イパス通路を設けると共に、このバイパス通路を開閉す
る弁を設けたことを特徴とする冷媒回収装置。5. The refrigerant recovery device according to claim 1 or 4, wherein a bypass passage is provided between the discharge port of the compressor and the condenser, and a valve for opening and closing the bypass passage is provided. Refrigerant recovery device.
上記コンプレッサの吐出口側に得られる高圧、高温の冷
媒ガスの熱の代わりに上記コンプレッサの廃熱を利用し
て上記オイル回収器を加熱する構成としたことを特徴と
する冷媒回収装置。6. The refrigerant recovery device according to claim 1, wherein
A refrigerant recovery device characterized in that the oil recovery device is heated by utilizing waste heat of the compressor instead of heat of high-pressure, high-temperature refrigerant gas obtained at the discharge port side of the compressor.
て、コンプレッサと上記オイル回収器との間を機械的に
連結し、コンプレッサの振動を上記オイル回収器に伝達
する構成としたことを特徴とする冷媒回収装置。7. The structure according to claim 1, wherein the compressor and the oil recovery device are mechanically connected to each other and vibration of the compressor is transmitted to the oil recovery device. A refrigerant recovery device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7310747A JP3015820B2 (en) | 1995-11-29 | 1995-11-29 | Refrigerant recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7310747A JP3015820B2 (en) | 1995-11-29 | 1995-11-29 | Refrigerant recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09152233A true JPH09152233A (en) | 1997-06-10 |
| JP3015820B2 JP3015820B2 (en) | 2000-03-06 |
Family
ID=18009003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7310747A Expired - Fee Related JP3015820B2 (en) | 1995-11-29 | 1995-11-29 | Refrigerant recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3015820B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001084064A1 (en) * | 2000-04-28 | 2001-11-08 | Daikin Industries, Ltd. | Method for refrigerant and oil collecting operation and refrigerant and oil collection controller |
| KR100409182B1 (en) * | 2001-10-19 | 2003-12-12 | 헤스본주식회사 | a cooling matter withdrawal and regeneration circuit for an air-conditioner cooling matter withdrawal and regeneration and filling up machine |
| JP2007127358A (en) * | 2005-11-07 | 2007-05-24 | Mitsubishi Electric Corp | Recovery method and device for combustible refrigerant |
| JP2009215224A (en) * | 2008-03-11 | 2009-09-24 | Asada Kk | Regeneration apparatus for freon |
| JP2011196655A (en) * | 2010-03-23 | 2011-10-06 | Mitsubishi Electric Building Techno Service Co Ltd | Auxiliary cooling device and refrigerant recovery system including the same |
| JP2014006028A (en) * | 2012-06-27 | 2014-01-16 | Mitsubishi Electric Corp | Refrigerant recovery device and refrigerant recovery method |
| WO2014022149A1 (en) * | 2012-07-30 | 2014-02-06 | Google Inc. | Vacuum filling and degasification system |
| CN104697256A (en) * | 2015-03-17 | 2015-06-10 | 睿能太宇（沈阳）能源技术有限公司 | Process for recovering residual gas refrigerant in heat pump system manufacturing process |
| KR20160106943A (en) * | 2015-03-03 | 2016-09-13 | (주)오운알투텍 | Effective refrigerant regeneration machine |
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
| CN110145903A (en) * | 2019-04-26 | 2019-08-20 | 青岛海尔空调电子有限公司 | Gas-liquid separation device and compressibility |
| CN113324355A (en) * | 2021-07-19 | 2021-08-31 | 深圳市英威腾网能技术有限公司 | Refrigerant recovery device and air conditioning system |
| JPWO2022113211A1 (en) * | 2020-11-25 | 2022-06-02 |
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|---|---|---|---|---|
| KR101999394B1 (en) * | 2018-12-06 | 2019-10-01 | (주)범석엔지니어링 | Refrigerant recovery/recycling equipment and recycling method using the same |
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| JPH02169971A (en) * | 1988-12-22 | 1990-06-29 | Sanden Corp | Fluorocarbon recovering apparatus |
| JPH0743882U (en) * | 1991-03-06 | 1995-09-26 | 三菱重工業株式会社 | Refrigerant recovery device |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001084064A1 (en) * | 2000-04-28 | 2001-11-08 | Daikin Industries, Ltd. | Method for refrigerant and oil collecting operation and refrigerant and oil collection controller |
| US7178347B2 (en) | 2000-04-28 | 2007-02-20 | Daikin Industries, Ltd. | Method for refrigerant and oil collecting operation and refrigerant and oil collection controller |
| KR100409182B1 (en) * | 2001-10-19 | 2003-12-12 | 헤스본주식회사 | a cooling matter withdrawal and regeneration circuit for an air-conditioner cooling matter withdrawal and regeneration and filling up machine |
| JP2007127358A (en) * | 2005-11-07 | 2007-05-24 | Mitsubishi Electric Corp | Recovery method and device for combustible refrigerant |
| JP2009215224A (en) * | 2008-03-11 | 2009-09-24 | Asada Kk | Regeneration apparatus for freon |
| JP2011196655A (en) * | 2010-03-23 | 2011-10-06 | Mitsubishi Electric Building Techno Service Co Ltd | Auxiliary cooling device and refrigerant recovery system including the same |
| JP2014006028A (en) * | 2012-06-27 | 2014-01-16 | Mitsubishi Electric Corp | Refrigerant recovery device and refrigerant recovery method |
| WO2014022149A1 (en) * | 2012-07-30 | 2014-02-06 | Google Inc. | Vacuum filling and degasification system |
| KR20160106943A (en) * | 2015-03-03 | 2016-09-13 | (주)오운알투텍 | Effective refrigerant regeneration machine |
| CN104697256A (en) * | 2015-03-17 | 2015-06-10 | 睿能太宇（沈阳）能源技术有限公司 | Process for recovering residual gas refrigerant in heat pump system manufacturing process |
| CN108917244A (en) * | 2018-09-10 | 2018-11-30 | 天津渤海石化有限公司 | Propylene recovery unit and propylene recovery method |
| CN110145903A (en) * | 2019-04-26 | 2019-08-20 | 青岛海尔空调电子有限公司 | Gas-liquid separation device and compressibility |
| JPWO2022113211A1 (en) * | 2020-11-25 | 2022-06-02 | ||
| WO2022113211A1 (en) * | 2020-11-25 | 2022-06-02 | ダイキン工業株式会社 | Refrigerant recovery device |
| CN113324355A (en) * | 2021-07-19 | 2021-08-31 | 深圳市英威腾网能技术有限公司 | Refrigerant recovery device and air conditioning system |
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| JP3015820B2 (en) | 2000-03-06 |
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