JPH08136089A - Refrigerant recovering device - Google Patents
Refrigerant recovering deviceInfo
- Publication number
- JPH08136089A JPH08136089A JP26964494A JP26964494A JPH08136089A JP H08136089 A JPH08136089 A JP H08136089A JP 26964494 A JP26964494 A JP 26964494A JP 26964494 A JP26964494 A JP 26964494A JP H08136089 A JPH08136089 A JP H08136089A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pipe
- compressor
- gaseous refrigerant
- pressure
- 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.)
- Granted
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 105
- 238000011084 recovery Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えば冷凍・空調機
器の冷媒を回収する冷媒回収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 refrigerant recovery device for recovering a refrigerant for refrigeration / air conditioning equipment, for example.
【０００２】[0002]
【従来の技術】図４は従来の圧縮方式による冷媒回収装
置を示す構成図であり、図において１は冷凍・空調機器
（図示せず）のガス状冷媒の排出配管に接続される吸入
バルブ、２は高圧シェル形の圧縮機、３は冷媒を液化さ
せる凝縮器、４は液出口バルブ、５は回収容器、６ａは
吸入バルブ１と圧縮機２とを連通する吸入配管、６ｂは
圧縮機２と凝縮器３とを連通する吐出配管、６ｃは凝縮
器３と回収容器５とを連通し、その経路中に液出口バル
ブ４が配設された液出口配管であり、これらの配管６ａ
〜６ｃは銅管で構成されている。2. Description of the Related Art FIG. 4 is a block diagram showing a conventional refrigerant recovery device by a compression method. In FIG. 1, 1 is a suction valve connected to a discharge pipe of a gaseous refrigerant of a refrigerating / air-conditioning device (not shown), 2 is a high-pressure shell type compressor, 3 is a condenser for liquefying a refrigerant, 4 is a liquid outlet valve, 5 is a recovery container, 6a is a suction pipe for connecting the suction valve 1 and the compressor 2, 6b is a compressor 2 And a condenser 3 for communicating with the condenser 3, and 6c is a liquid outlet pipe in which the condenser 3 and the recovery container 5 are communicated with each other, and a liquid outlet valve 4 is disposed in the path thereof.
6c are composed of copper tubes.
【０００３】つぎに、上記従来の冷媒回収装置の動作に
ついて説明する。まず、冷媒回収装置は、その吸入バル
ブ１を冷凍・空調装置の排出配管に接続される。そこ
で、圧縮機２を作動させることにより、冷凍・空調装置
のガス状の冷媒が吸入配管６ａを介して圧縮機２に吸い
込まれる。そして圧縮機２に吸い込まれたガス状の冷媒
は、圧縮機２にて圧縮されて高温高圧となり、吐出配管
６ｂを介して凝縮器３に送り込まれる。凝縮器３に送り
込まれたガス状の冷媒は、凝縮器３にて冷却・液化さ
れ、液出口配管６ｃを介して回収容器５に送り込まれ、
回収容器５に詰め込まれる。Next, the operation of the above conventional refrigerant recovery device will be described. First, in the refrigerant recovery device, the suction valve 1 is connected to the discharge pipe of the refrigeration / air conditioning device. Then, by operating the compressor 2, the gaseous refrigerant of the refrigeration / air-conditioning system is sucked into the compressor 2 via the suction pipe 6a. Then, the gaseous refrigerant sucked into the compressor 2 is compressed by the compressor 2 to have a high temperature and high pressure, and is sent to the condenser 3 via the discharge pipe 6b. The gaseous refrigerant sent to the condenser 3 is cooled and liquefied by the condenser 3 and sent to the recovery container 5 via the liquid outlet pipe 6c,
It is packed in the collection container 5.
【０００４】[0004]
【発明が解決しようとする課題】従来の冷媒回収装置は
以上のように構成されているので、冷媒の回収が進み、
冷凍・空調機器内の冷媒量が減少するにつれ、圧縮機２
に吸い込まれる冷媒量が少なくなり、圧縮機２は真空運
転状態となってしまう。そして、ついには冷媒の吸い込
みがなくなり、圧縮機２から凝縮器３への冷媒の送り込
みがなくなる。そこで、凝縮器３で既に液化された冷媒
は常に凝縮器３内または液出口配管６ｃ内に残留してし
まい、液化された冷媒を完全に回収容器５に回収できな
いという課題があった。Since the conventional refrigerant recovery device is constructed as described above, the recovery of the refrigerant proceeds,
As the amount of refrigerant in the refrigeration and air conditioning equipment decreases, the compressor 2
The amount of refrigerant sucked into the compressor decreases, and the compressor 2 is in a vacuum operation state. Finally, the suction of the refrigerant is stopped, and the refrigerant is not sent from the compressor 2 to the condenser 3. Therefore, there is a problem that the refrigerant already liquefied in the condenser 3 always remains in the condenser 3 or the liquid outlet pipe 6c, and the liquefied refrigerant cannot be completely recovered in the recovery container 5.
【０００５】この発明は、上記のような課題を解決する
ためになされたもので、冷凍・空調機器等内のガス状の
冷媒を完全に回収できる冷媒回収装置を得ることを目的
とする。The present invention has been made to solve the above problems, and an object of the present invention is to obtain a refrigerant recovery device capable of completely recovering a gaseous refrigerant in a refrigeration / air-conditioning device or the like.
【０００６】[0006]
【課題を解決するための手段】この発明の第１の発明に
係る冷媒回収装置は、ガス状の冷媒を吸入配管を介して
吸入し、圧縮して高温高圧のガス状の冷媒として吐出す
る圧縮機と、圧縮機から吐出配管を介して送り込まれた
高温高圧のガス状の冷媒を凝縮液化し、液状の冷媒とし
て排出する凝縮器と、凝縮器から液出口配管を介して排
出された液状の冷媒を回収する回収容器と、吐出配管か
ら分岐して設けられたバイパス配管と、バイパス配管に
設けられて吐出配管との冷媒の流通を制御する開閉手段
と、開閉手段によりバイパス配管内に封じ込められた高
温高圧のガス状の冷媒を加熱する加熱手段とを備えたも
のである。According to a first aspect of the present invention, there is provided a refrigerant recovery device, in which a gaseous refrigerant is sucked through a suction pipe, compressed, and discharged as a high-temperature and high-pressure gaseous refrigerant. And a condenser that liquefies the high-temperature high-pressure gaseous refrigerant sent from the compressor through the discharge pipe into a liquid refrigerant, and discharges it as a liquid refrigerant, and the liquid discharged from the condenser through the liquid outlet pipe. A collection container for collecting the refrigerant, a bypass pipe branched from the discharge pipe, an opening / closing means provided in the bypass pipe to control the flow of the refrigerant with the discharge pipe, and enclosed in the bypass pipe by the opening / closing means. And a heating means for heating the high-temperature and high-pressure gaseous refrigerant.
【０００７】また、この発明の第２の発明に係る冷媒回
収装置は、上記第１の発明において、バイパス配管の少
なくとも一部が圧縮機の高温シェルと熱交換可能に配置
されているものである。Further, the refrigerant recovery apparatus according to the second invention of the present invention is the refrigerant recovery apparatus according to the first invention, wherein at least a part of the bypass pipe is arranged so as to be capable of exchanging heat with the high temperature shell of the compressor. .
【０００８】[0008]
【作用】この発明の第１の発明においては、冷凍・空調
機器等の機器内のガス状の冷媒が吸入配管を介して圧縮
機に吸入される。そして、圧縮機にて圧縮されて高温高
圧のガス状の冷媒として吐出配管を介して凝縮器に送り
込まれる。ついで、凝縮器にて凝縮液化されて液状の冷
媒として液出口配管を介して回収容器に回収される。こ
の時、冷媒の回収終了時には、機器側から圧縮機に吸引
されるガス状の冷媒がなくなり、凝縮器にて既に凝縮液
化された液状の冷媒が凝縮器および液出口配管内に残留
している。一方、圧縮機から吐出配管を介して吐出され
た高温高圧のガス状の冷媒の一部はバイパス配管に送り
込まれ、開閉手段によりバイパス配管内に封じ込められ
る。そして、バイパス配管内に封じ込められた高温高圧
のガス状の冷媒は加熱手段により加熱されて圧力が上昇
される。そこで、機器側から圧縮機に吸引されるガス状
の冷媒がなくなった後、開閉手段によりバイパス配管と
吐出配管とを連通させると、バイパス配管内で圧力が上
昇されたガス状の冷媒が吐出配管内に噴出される。そし
て、吐出配管内に噴出されたガス状の冷媒は、凝縮器お
よび液出口配管を介して回収容器に流れ込む。この時、
凝縮器および液出口配管内に残留している液状の冷媒
は、吐出配管内に噴出されたガス状の冷媒とともに回収
容器に流れ込み、回収される。In the first aspect of the present invention, the gaseous refrigerant in equipment such as refrigeration / air-conditioning equipment is sucked into the compressor through the suction pipe. Then, it is compressed by the compressor and sent to the condenser as a high-temperature high-pressure gaseous refrigerant through the discharge pipe. Then, it is condensed and liquefied by the condenser and recovered as a liquid refrigerant in the recovery container through the liquid outlet pipe. At this time, at the end of the recovery of the refrigerant, the gaseous refrigerant sucked into the compressor from the device side disappears, and the liquid refrigerant already condensed and liquefied in the condenser remains in the condenser and the liquid outlet pipe. . On the other hand, a part of the high-temperature and high-pressure gaseous refrigerant discharged from the compressor through the discharge pipe is sent to the bypass pipe and enclosed in the bypass pipe by the opening / closing means. Then, the high-temperature and high-pressure gaseous refrigerant contained in the bypass pipe is heated by the heating means and its pressure is increased. Therefore, when the bypass pipe and the discharge pipe are made to communicate with each other by the opening / closing means after the gaseous refrigerant sucked into the compressor from the equipment side is exhausted, the gaseous refrigerant whose pressure is increased in the bypass pipe is discharged. Erupted inside. Then, the gaseous refrigerant jetted into the discharge pipe flows into the recovery container via the condenser and the liquid outlet pipe. This time,
The liquid refrigerant remaining in the condenser and the liquid outlet pipe flows into the recovery container together with the gaseous refrigerant ejected in the discharge pipe and is recovered.
【０００９】また、この発明の第２の発明においては、
バイパス配管の少なくとも一部が圧縮機の高温シェルと
熱交換可能に配置されているので、特別な加熱手段を設
けることなく、バイパス配管内に封じ込められているガ
ス状の冷媒が高温シェルの熱により加熱される。According to the second aspect of the present invention,
Since at least a part of the bypass pipe is arranged so as to be capable of heat exchange with the high temperature shell of the compressor, the gaseous refrigerant contained in the bypass pipe is protected by the heat of the high temperature shell without providing special heating means. Be heated.
【００１０】[0010]
【実施例】以下、この発明の実施例を図について説明す
る。図１はこの発明の一実施例に係る冷媒回収装置を示
す構成図、図２はこの発明の一実施例に係る冷媒回収装
置の圧縮機周りを示す側面図であり、図において図４に
示した従来の冷媒回収装置と同一または相当部分には同
一符号を付し、その説明を省略する。図において、７は
吐出配管６ｂの経路中に配設された逆止弁、８は吐出配
管６ｂの逆止弁７の下流側から分岐された端部が塞口さ
れたバイパス配管としての噴出用配管であり、この噴出
用配管８は圧縮機２の高温シェルに密着して巻回されて
いる。この場合、圧縮機２の高温シェルが加熱手段を構
成している。９は噴出用配管８の経路中に配設された開
閉手段としての電磁弁、１０は噴出用配管８内の圧力を
検出する圧力センサ、１１は噴出用配管８の端部側に設
けられて噴出用配管８内が異常高圧となった際に作動し
て噴出用配管８内の冷媒を排出するリリーフバルブ、１
２は電磁弁９およびリリーフバルブ１１を開閉制御する
制御装置である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a refrigerant recovery device according to an embodiment of the present invention, and FIG. 2 is a side view showing the periphery of a compressor of the refrigerant recovery device according to an embodiment of the present invention, which is shown in FIG. The same or corresponding parts as those of the conventional refrigerant recovery device are designated by the same reference numerals, and the description thereof will be omitted. In the figure, 7 is a check valve arranged in the path of the discharge pipe 6b, and 8 is a jet as a bypass pipe in which the end of the discharge pipe 6b branched from the downstream side of the check valve 7 is closed. The jet pipe 8 is a pipe and is wound in close contact with the high temperature shell of the compressor 2. In this case, the hot shell of the compressor 2 constitutes the heating means. Reference numeral 9 denotes a solenoid valve as an opening / closing means arranged in the path of the jet pipe 8; 10 is a pressure sensor for detecting the pressure in the jet pipe 8; and 11 is provided on the end side of the jet pipe 8. A relief valve that operates when the pressure in the ejection pipe 8 becomes abnormally high and discharges the refrigerant in the ejection pipe 8.
Reference numeral 2 is a control device that controls opening / closing of the solenoid valve 9 and the relief valve 11.
【００１１】つぎに、この実施例の動作について説明す
る。まず、冷媒回収装置は、その吸入バルブ１を冷凍・
空調装置の排出配管に接続される。そこで、冷媒回収装
置が運転開始されると、圧縮機２、凝縮器３が作動さ
れ、制御装置１２により電磁弁９が開状態となる。そし
て、冷凍・空調装置のガス状の冷媒が吸入配管６ａを介
して圧縮機２に吸い込まれる。圧縮機２に吸い込まれた
ガス状の冷媒は、圧縮機２にて圧縮されて高温高圧とな
り、その一部が吐出配管６ｂを介して噴出用配管８に、
残部が吐出配管６ｂを介して凝縮器３に送り込まれる。
凝縮器３に送り込まれたガス状の冷媒は、凝縮器３にて
冷却・液化され、液出口配管６ｃを介して回収容器５に
送り込まれ、回収容器５に詰め込まれる。一方、噴出用
配管８内に送り込まれた冷媒の圧力は圧力センサ１０で
検出され、圧力センサ１０の検出信号から制御装置１２
が噴出用配管８内の圧力が一定値に達したと判断する
と、電磁弁９が閉じられる。そして、噴出用配管８内に
封じ込まれた冷媒は、圧縮機２の高温シェルにより加熱
されて圧力が上昇する。ついで、冷媒の回収終了間直で
冷凍・空調機器内のガス状の冷媒が圧縮機２に吸い込ま
れなくなると、電磁弁９が開けられる。すると、噴出用
配管８内に封じ込まれ圧力を上昇した高温高圧のガス状
の冷媒が、吐出配管６ｂを介して凝縮器３内に噴出され
る。そこで、冷媒の回収終了間直で冷凍・空調機器内の
ガス状の冷媒が圧縮機２に吸い込まれなくなることに起
因して凝縮器３および液出口配管６ｃ内に残留している
液状の冷媒が、噴出用配管８から噴出されたガス状の冷
媒とともに回収容器５に流れ込む。この時、噴出用配管
８から噴射されるガス状の冷媒は逆止弁７により吐出配
管６ｂを介して圧縮機２に流入するのが阻止されてい
る。Next, the operation of this embodiment will be described. First, the refrigerant recovery device freezes the suction valve 1
Connected to the exhaust pipe of the air conditioner. Therefore, when the operation of the refrigerant recovery device is started, the compressor 2 and the condenser 3 are operated, and the solenoid valve 9 is opened by the control device 12. Then, the gaseous refrigerant of the refrigeration / air conditioning system is sucked into the compressor 2 through the suction pipe 6a. The gaseous refrigerant sucked into the compressor 2 is compressed by the compressor 2 to a high temperature and high pressure, and a part of the gaseous refrigerant flows into the ejection pipe 8 through the discharge pipe 6b.
The remaining part is sent to the condenser 3 via the discharge pipe 6b.
The gaseous refrigerant sent to the condenser 3 is cooled and liquefied by the condenser 3, sent to the recovery container 5 via the liquid outlet pipe 6c, and packed in the recovery container 5. On the other hand, the pressure of the refrigerant sent into the ejection pipe 8 is detected by the pressure sensor 10, and the control device 12 is detected from the detection signal of the pressure sensor 10.
When it is determined that the pressure in the ejection pipe 8 has reached a certain value, the solenoid valve 9 is closed. Then, the refrigerant enclosed in the jet pipe 8 is heated by the high temperature shell of the compressor 2 and its pressure rises. Then, when the gaseous refrigerant in the refrigeration / air-conditioning equipment is no longer sucked into the compressor 2 immediately after the completion of refrigerant recovery, the solenoid valve 9 is opened. Then, the high-temperature and high-pressure gaseous refrigerant that is contained in the jet pipe 8 and has increased pressure is jetted into the condenser 3 through the discharge pipe 6b. Therefore, the liquid refrigerant remaining in the condenser 3 and the liquid outlet pipe 6c is caused by the fact that the gaseous refrigerant in the refrigeration / air conditioning equipment is not sucked into the compressor 2 immediately after the completion of the refrigerant recovery. , Flows into the recovery container 5 together with the gaseous refrigerant ejected from the ejection pipe 8. At this time, the check valve 7 prevents the gaseous refrigerant injected from the ejection pipe 8 from flowing into the compressor 2 via the discharge pipe 6b.
【００１２】ここで、噴出用配管８内に封じ込められた
ガス状の冷媒の圧力が所定圧に達すると、制御装置１２
は電磁弁９を開けて内圧を下げ、噴出用配管８内が異常
圧力まで上昇しないように圧力調節している。さらに、
圧力が異常に上昇した場合には、リリーフバルブ１１を
開けて瞬時に内圧を下げ、噴出用配管８の破裂事故に至
るのを防止している。Here, when the pressure of the gaseous refrigerant contained in the ejection pipe 8 reaches a predetermined pressure, the controller 12
Opens the solenoid valve 9 to lower the internal pressure and adjusts the pressure so that the inside of the ejection pipe 8 does not rise to an abnormal pressure. further,
When the pressure rises abnormally, the relief valve 11 is opened to instantly reduce the internal pressure to prevent the ejection pipe 8 from bursting.
【００１３】このように、この実施例１によれば、吐出
配管６ｂから分岐して噴出用配管８を設け、この噴出用
配管８を圧縮機２の高温シェルに密着して巻回し、さら
に噴出用配管８の経路中に電磁弁９を配設しているの
で、圧縮機２から吐出したガス状の冷媒を噴出用配管８
内に封じ込めて圧力を上昇でき、この圧力が上昇された
ガス状の冷媒を冷媒の回収終了間直で吐出配管６ｂ内に
噴出させれば、冷凍・空調機器内のガス状の冷媒が圧縮
機２に吸い込まれなくなることに起因して凝縮器３およ
び液出口配管６ｃ内に残留する液状の冷媒を、該圧力が
上昇されたガス状の冷媒とともに回収容器５に流れ込む
ことができ、機器内の冷媒を確実に回収できるという効
果がある。また、噴出用配管８内に封じ込められたガス
状の冷媒は圧縮機８の高温シェルとの熱交換によって加
熱され、特別な加熱手段を必要とせず、その分装置の簡
素化、低コスト化を図ることができる。また、噴出用配
管８に圧力センサ１０を配設し、該圧力センサ１０の検
出信号に基づいて制御装置１２により電磁弁９およびリ
リーフバルブ１１を開閉制御するようにしているので、
噴出用配管８内の圧力調整ができ、圧力の異常上昇にと
もなう配管の破裂事故が防止でき、安全性の向上をも図
ることができる。As described above, according to the first embodiment, the jetting pipe 8 is provided so as to branch from the discharge pipe 6b, the jetting pipe 8 is tightly wound around the high temperature shell of the compressor 2 and further jetted. Since the electromagnetic valve 9 is disposed in the path of the pipe 8 for gas, the gaseous refrigerant discharged from the compressor 2 is ejected from the pipe 8 for jetting.
If the gaseous refrigerant whose pressure has been raised can be confined in the discharge pipe 6b immediately after the completion of the recovery of the refrigerant, the gaseous refrigerant in the refrigeration / air-conditioning equipment will be compressed. The liquid refrigerant remaining in the condenser 3 and the liquid outlet pipe 6c due to the fact that it is no longer sucked into 2 can flow into the recovery container 5 together with the gaseous refrigerant whose pressure has been increased, and There is an effect that the refrigerant can be reliably recovered. In addition, the gaseous refrigerant enclosed in the jet pipe 8 is heated by heat exchange with the high temperature shell of the compressor 8 and does not require any special heating means, which simplifies the device and reduces the cost. Can be planned. Further, since the pressure sensor 10 is arranged in the jet pipe 8 and the control device 12 controls the opening and closing of the solenoid valve 9 and the relief valve 11 based on the detection signal of the pressure sensor 10,
The pressure in the jetting pipe 8 can be adjusted, a pipe rupture accident due to an abnormal rise in pressure can be prevented, and safety can be improved.
【００１４】実施例２．この実施例２では、図３に示す
ように、噴出用配管１３の一端側を吐出配管６ｂから分
岐させ、圧縮機２の高温シェルに密着して巻回させた
後、他端側を吐出配管６ｂの分岐部の下流側に合流さ
せ、噴出用配管１３の両端部に電磁弁１４ａ、１４ｂを
配設するものとしている。なお、他の構成は上記実施例
１と同様に構成されている。Example 2. In this second embodiment, as shown in FIG. 3, one end side of the jet pipe 13 is branched from the discharge pipe 6b, closely wound on the high temperature shell of the compressor 2 and wound, and then the other end side is discharged pipe. 6b is merged on the downstream side of the branch portion, and electromagnetic valves 14a and 14b are arranged at both ends of the jet pipe 13. The other structure is the same as that of the first embodiment.
【００１５】この実施例２においても、圧縮機２から吐
出したガス状の冷媒を噴出用配管１３内に導入した後電
磁弁１４ａ、１４ｂを閉じて封じ込め、高温シェルによ
り該冷媒の圧力を上昇でき、この圧力が上昇されたガス
状の冷媒を冷媒の回収終了間直で電磁弁１４ｂを開けて
吐出配管６ｂ内に噴出させることができ、上記実施例１
と同様の効果が得られる。Also in the second embodiment, after the gaseous refrigerant discharged from the compressor 2 is introduced into the jet pipe 13, the solenoid valves 14a and 14b are closed and contained, and the pressure of the refrigerant can be increased by the high temperature shell. The gaseous refrigerant whose pressure has been increased can be jetted into the discharge pipe 6b by opening the electromagnetic valve 14b immediately after the completion of the refrigerant recovery.
The same effect can be obtained.
【００１６】なお、上記各実施例では、圧縮機２の高温
シェルを加熱手段として用いるものとして説明している
が、噴出用配管８、１３を囲繞するようにヒータ等を配
設してもよい。In each of the above-described embodiments, the high temperature shell of the compressor 2 is used as the heating means, but a heater or the like may be arranged so as to surround the ejection pipes 8 and 13. .
【００１７】[0017]
【発明の効果】この発明は、以上のように構成されてい
るので、以下に記載されるような効果を奏する。Since the present invention is constituted as described above, it has the following effects.
【００１８】この発明の第１の発明においては、ガス状
の冷媒を吸入配管を介して吸入し、圧縮して高温高圧の
ガス状の冷媒として吐出する圧縮機と、圧縮機から吐出
配管を介して送り込まれた高温高圧のガス状の冷媒を凝
縮液化し、液状の冷媒として排出する凝縮器と、凝縮器
から液出口配管を介して排出された液状の冷媒を回収す
る回収容器と、吐出配管から分岐して設けられたバイパ
ス配管と、バイパス配管に設けられて吐出配管との冷媒
の流通を制御する開閉手段と、開閉手段によりバイパス
配管内に封じ込められた高温高圧のガス状の冷媒を加熱
する加熱手段とを備えているので、冷媒の回収終了直前
に凝縮器および液出口配管内に残留する液状の冷媒まで
も確実に回収容器に回収することができる。In the first aspect of the present invention, a compressor for sucking a gaseous refrigerant through a suction pipe, compressing it, and discharging it as a high-temperature and high-pressure gaseous refrigerant, and a compressor for discharging a gaseous refrigerant through a discharge pipe. A condenser that condenses and liquefies the high-temperature and high-pressure gaseous refrigerant that has been sent as a liquid refrigerant, and a collection container that collects the liquid refrigerant that is discharged from the condenser through the liquid outlet pipe, and a discharge pipe A bypass pipe provided by branching from it, an opening / closing means provided in the bypass pipe to control the flow of the refrigerant with the discharge pipe, and a high-temperature high-pressure gaseous refrigerant contained in the bypass pipe by the opening / closing means. Therefore, even the liquid refrigerant remaining in the condenser and the liquid outlet pipe immediately before the completion of the refrigerant recovery can be reliably recovered in the recovery container.
【００１９】また、この発明の第２の発明においては、
上記第１の発明において、バイパス配管の少なくとも一
部が圧縮機の高温シェルと熱交換可能に配置されている
ので、上記第１の発明の効果に加えて、加熱手段を新た
に設ける必要がなく、その分装置の簡素化および低コス
ト化を図ることができる。According to the second aspect of the present invention,
In the first aspect of the present invention, at least a part of the bypass pipe is arranged so as to be capable of heat exchange with the high temperature shell of the compressor. Therefore, the apparatus can be simplified and the cost can be reduced accordingly.
【図１】 この発明の実施例１に係る冷媒回収装置を示
す構成図である。FIG. 1 is a configuration diagram showing a refrigerant recovery device according to a first embodiment of the present invention.
【図２】 この発明の実施例１に係る冷媒回収装置の圧
縮機周りを示す側面図である。FIG. 2 is a side view showing the periphery of the compressor of the refrigerant recovery device according to the first embodiment of the present invention.
【図３】 この発明の実施例２に係る冷媒回収装置を示
す構成図である。FIG. 3 is a configuration diagram showing a refrigerant recovery device according to a second embodiment of the present invention.
【図４】 従来の冷媒回収装置を示す構成図である。FIG. 4 is a configuration diagram showing a conventional refrigerant recovery device.
２ 圧縮機、３ 凝縮器、５ 回収容器、６ａ 吸入配
管、６ｂ 吐出配管、６ｃ 液出口配管、８ 噴出用配
管（バイパス配管）、９ 電磁弁（開閉手段）、１３
噴出用配管（バイパス配管）、１４ａ、１４ｂ 電磁弁
（開閉手段）。2 compressor, 3 condenser, 5 recovery container, 6a suction pipe, 6b discharge pipe, 6c liquid outlet pipe, 8 jet pipe (bypass pipe), 9 solenoid valve (opening / closing means), 13
Jet pipes (bypass pipes), 14a, 14b Solenoid valves (opening / closing means).
Claims (2)
し、圧縮して高温高圧のガス状の冷媒として吐出する圧
縮機と、前記圧縮機から吐出配管を介して送り込まれた
前記高温高圧のガス状の冷媒を凝縮液化し、液状の冷媒
として排出する凝縮器と、前記凝縮器から液出口配管を
介して排出された前記液状の冷媒を回収する回収容器
と、前記吐出配管から分岐して設けられたバイパス配管
と、前記バイパス配管に設けられて前記吐出配管との冷
媒の流通を制御する開閉手段と、前記開閉手段により前
記バイパス配管内に封じ込められた前記高温高圧のガス
状の冷媒を加熱する加熱手段とを備えたことを特徴とす
る冷媒回収装置。1. A compressor that sucks a gaseous refrigerant through a suction pipe, compresses it, and discharges it as a high-temperature high-pressure gaseous refrigerant, and the high-temperature high-pressure sent from the compressor through a discharge pipe. A condenser for condensing and liquefying the gaseous refrigerant as a liquid refrigerant, a collection container for collecting the liquid refrigerant discharged from the condenser through a liquid outlet pipe, and a branch from the discharge pipe. And a bypass pipe provided in the bypass pipe for controlling the flow of the refrigerant to and from the discharge pipe, and the high-temperature high-pressure gaseous refrigerant enclosed in the bypass pipe by the opening / closing device. And a heating unit for heating the refrigerant.
の高温シェルと熱交換可能に配置されていることを特徴
とする請求項１記載の冷媒回収装置。2. The refrigerant recovery device according to claim 1, wherein at least a part of the bypass pipe is arranged so as to be able to exchange heat with the high temperature shell of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26964494A JP3210193B2 (en) | 1994-11-02 | 1994-11-02 | Refrigerant recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26964494A JP3210193B2 (en) | 1994-11-02 | 1994-11-02 | Refrigerant recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08136089A true JPH08136089A (en) | 1996-05-31 |
| JP3210193B2 JP3210193B2 (en) | 2001-09-17 |
Family
ID=17475225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26964494A Expired - Fee Related JP3210193B2 (en) | 1994-11-02 | 1994-11-02 | Refrigerant recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3210193B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372084A (en) * | 2015-10-26 | 2016-03-02 | 广东美的暖通设备有限公司 | Air conditioner performance detection system and method and standard machine weighing method |
| CN107188106A (en) * | 2016-03-14 | 2017-09-22 | 谢德风 | The refrigeration oil more changing device of refrigerating circulation system total closed type compressor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8043272B2 (en) | 2007-04-30 | 2011-10-25 | Kimberly-Clark Worldwide, Inc. | Collection and testing of infant urine using an absorbent article |
| US20080269707A1 (en) | 2007-04-30 | 2008-10-30 | Kimberly-Clark Worldwide, Inc. | Lateral Flow Device for Attachment to an Absorbent Article |
-
1994
- 1994-11-02 JP JP26964494A patent/JP3210193B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372084A (en) * | 2015-10-26 | 2016-03-02 | 广东美的暖通设备有限公司 | Air conditioner performance detection system and method and standard machine weighing method |
| CN107188106A (en) * | 2016-03-14 | 2017-09-22 | 谢德风 | The refrigeration oil more changing device of refrigerating circulation system total closed type compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3210193B2 (en) | 2001-09-17 |
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