JPS59150280A - Automatic bleeding device for non-condensable gas of refrigerator - Google Patents
Automatic bleeding device for non-condensable gas of refrigeratorInfo
- Publication number
- JPS59150280A JPS59150280A JP2273083A JP2273083A JPS59150280A JP S59150280 A JPS59150280 A JP S59150280A JP 2273083 A JP2273083 A JP 2273083A JP 2273083 A JP2273083 A JP 2273083A JP S59150280 A JPS59150280 A JP S59150280A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pipe
- bleed
- condensable gas
- recovery device
- 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
Landscapes
- Compressor (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
この発明は、冷凍機の不凝縮ガスの自動抽気装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic extraction device for non-condensable gas in a refrigerator.
一般に、冷凍サイクル中め不凝縮ガスは、冷凍機を運転
すると凝縮器に溜まる。そして凝縮器に溜まった不凝縮
ガスは、冷凍機運転中、圧縮比の増加となり、無駄な動
力を消費することになる。Generally, during the refrigeration cycle, non-condensable gas accumulates in the condenser when the refrigerator is operated. The non-condensable gas accumulated in the condenser increases the compression ratio during operation of the refrigerator, resulting in wasted power consumption.
また、不凝縮ガスが冷凍機内部に、長期にわたって滞留
すると、機内を発錆させる原因ともなシ、冷凍機の寿命
が短くなる。Further, if non-condensable gas remains inside the refrigerator for a long period of time, it may cause rust inside the refrigerator and shorten the life of the refrigerator.
ところで、従来の不凝縮ガスの抽気装置は、抽気回収器
に凝縮器を抽気配管で接続し、抽気回収器に溜まったガ
スを冷却して冷媒と不凝縮ガスとに分離し、抽気回収器
内の圧力と大気圧との圧力差で不凝縮ガスを大気へ放出
するようにしていた。By the way, conventional non-condensable gas bleed equipment connects a condenser to a bleed gas recovery device with a bleed pipe, cools the gas accumulated in the bleed gas recovery device, separates it into refrigerant and non-condensable gas, and then releases the gas inside the bleed gas recovery device. Noncondensable gas was released into the atmosphere based on the pressure difference between the pressure of
このため、前記抽気装置では凝縮器の圧力が大気圧程度
または大気圧以下に下がったときは、不凝縮ガスを大気
に放出できない欠点があった。For this reason, the above-mentioned air bleed device has a drawback in that it cannot release non-condensable gas to the atmosphere when the pressure in the condenser drops to about atmospheric pressure or below atmospheric pressure.
また、他の従来の抽気装置献油を抽気回収器に溜め、こ
の油を油タンクに戻すとき、抽気回収器内の圧力が低下
して凝縮器内の圧力との間に差圧が生ずることを利用し
て凝縮器の冷媒ガス＋不凝縮ガスを抽気回収器へ導き、
一定量溜まった後、抽気回収器に油を給油しつつ冷却し
た油に冷媒ガスを溶は込ませ、不凝縮ガスのみ油で加圧
し、大気へ放出するようＫしていた。しかし、この抽気
装置では凝縮器の圧力が低下すると、凝縮器と抽気回収
器間の差圧が減少し覧抽気回収器に溜まるガス量も減少
して抽気性能が著しく低下する可能性があった。In addition, in other conventional air bleed systems, when the oil is stored in the bleed air recovery device and this oil is returned to the oil tank, the pressure inside the bleed air recovery device decreases and a pressure difference occurs between the pressure inside the condenser and the pressure inside the condenser. The refrigerant gas + non-condensable gas in the condenser is guided to the bleed air recovery device using
After a certain amount had accumulated, refrigerant gas was dissolved in the cooled oil while supplying oil to the bleed gas collector, and only the non-condensable gas was pressurized with oil and then released into the atmosphere. However, with this bleed system, when the pressure in the condenser decreases, the differential pressure between the condenser and the bleed gas recovery device decreases, and the amount of gas that accumulates in the bleed gas recovery device also decreases, potentially resulting in a significant drop in bleed performance. .
本発明の目的は、凝縮器内の圧力が大気圧程度または大
気圧以下にまで低下した場合にも、不凝縮ガスを確実に
回収でき、しかも回収した不凝縮ガスを自動的に、確実
に大気へ放出し得る冷凍機の不凝縮ガスの自動抽気装置
ｔ＝提供するにある。An object of the present invention is to be able to reliably recover non-condensable gas even when the pressure inside the condenser drops to approximately atmospheric pressure or below atmospheric pressure, and to automatically and reliably transfer the recovered non-condensable gas to atmospheric pressure. An automatic extraction device for non-condensable gases of the refrigerator which can be discharged to the refrigerator is provided.
本発明は、内部に冷却配管を通した抽気回収器゛に、圧
縮機給油配管から分岐した油配管を接続するとともに、
抽気回収器と圧縮機油タンクとを油戻り配管で接続し、
前記油配管にベンチュリを設け、該ベンチュリと凝縮器
とを抽気配管で接続し、前記抽気回収器に油面検出器と
不凝縮ガス放出配管とを取り付け、該不凝縮ガス放出配
管には抽気回収器内の油面が一定値以下で開く弁を設け
たところに特徴を杢「るもので、この構成にょシ前記目
的を確実に達成することができたものである。The present invention connects an oil pipe branched from a compressor oil supply pipe to a bleed air recovery device through which a cooling pipe is passed, and
Connect the bleed air recovery device and the compressor oil tank with oil return piping,
A venturi is provided in the oil pipe, the venturi and the condenser are connected with an air bleed pipe, an oil level detector and a non-condensable gas discharge pipe are attached to the above-mentioned bleed gas recovery device, and a bleed air recovery pipe is attached to the non-condensable gas discharge pipe. The device is characterized by the provision of a valve that opens when the oil level in the vessel is below a certain level, and this configuration has been able to reliably achieve the above objectives.
以下、本発明を図面に基づいて説明する。 Hereinafter, the present invention will be explained based on the drawings.
図面は、本発明にかかる不凝縮ガスの自動抽気装置の一
実施例を示すもので、圧縮機１、これに伺設された圧縮
機油タンク２、凝縮器７および抽気回収器１１を具備し
ている。The drawing shows an embodiment of an automatic extraction device for non-condensable gas according to the present invention, which includes a compressor 1, a compressor oil tank 2 installed in the compressor, a condenser 7, and an extraction recovery device 11. There is.
前記圧縮機油タンク２には、油ポンプ３を備え、核油ポ
ンプ３から吐出された油を、圧縮機給油配管４を通じて
圧縮機１の軸受部へ給油するようになっている。The compressor oil tank 2 is equipped with an oil pump 3, and oil discharged from the kernel oil pump 3 is supplied to the bearing portion of the compressor 1 through a compressor oil supply pipe 4.
前記圧縮機給油配管４からは油配管５が分岐され、該油
配管５は抽気□回収器１１に接続されている。また、前
記油配管５の途中にはベンチュリ６が設けられている。An oil pipe 5 is branched from the compressor oil supply pipe 4, and the oil pipe 5 is connected to a bleed air recovery device 11. Further, a venturi 6 is provided in the middle of the oil pipe 5.
前記凝縮器７には、抽気配管８が設けられ、該油気配管
８は前記ベンチュリ６の作用時に負圧に、よる部位に接
続されている。また、前記抽気配管８にはストレーナ９
およびチェック弁１ｏが設けられている。The condenser 7 is provided with an air bleed pipe 8, and the oil air pipe 8 is connected to a portion that receives negative pressure when the venturi 6 is activated. In addition, a strainer 9 is provided in the air bleed pipe 8.
and a check valve 1o.
前記抽気回収器１１には、冷却配管１２、油戻シ配管１
３、油面検出器、とじての２個のレベルスイッチ１７．
１８、不凝縮ガス放出配管１９および圧力スイッチ２２
が設けられている。前記冷却配管１２は、抽気回収器１
１の内部に挿通されている。前記油戻シ配管１３は、圧
縮機油タンク２に接続されており、また油戻り配管１３
には油に溶は込んでいる水分を除去するドライヤ１４、
チェック弁１５、前記油ポンプ３の運転と同時に開く電
磁弁１６とが設けられている。前記レベルスイッチ１７
．１８は、抽気回収器１１内の油面の下限位置と上限位
置とを検出すべく設けられている。前記不凝縮ガス放出
配管１．９には、電磁弁２０、チェック弁２１とが設け
られている。前記電磁弁２０Ｆｉ、前記油面の下限位置
を検出しているレベルスイッチ１７牟らの声量で開き、
上限位置を検出しているレベルスイッチエ８からの信夛
、で閉じるように、電気的に連結されている。前些圧カ
スイッチ２２は、抽気回収器１１内の圧力を検出するよ
うになっている。The bleed air recovery device 11 includes a cooling pipe 12 and an oil return pipe 1.
3. Oil level detector, two level switches at the door 17.
18, non-condensable gas discharge piping 19 and pressure switch 22
is provided. The cooling pipe 12 is connected to the bleed air recovery device 1
It is inserted into the inside of 1. The oil return pipe 13 is connected to the compressor oil tank 2, and the oil return pipe 13 is connected to the compressor oil tank 2.
a dryer 14 for removing water dissolved in the oil;
A check valve 15 and a solenoid valve 16 that opens simultaneously with the operation of the oil pump 3 are provided. The level switch 17
．． 18 is provided to detect the lower limit position and upper limit position of the oil level in the bleed air recovery device 11. The non-condensable gas discharge pipe 1.9 is provided with a solenoid valve 20 and a check valve 21. The solenoid valve 20Fi opens at the volume of the level switch 17 which detects the lower limit position of the oil level,
It is electrically connected so as to be closed by a signal from the level switch 8 detecting the upper limit position. The pre-pressure switch 22 is adapted to detect the pressure within the bleed air recovery device 11.
前記実施例の不凝縮ガスの自動抽気装置は、次のように
作用する。The automatic extraction device for non-condensable gas according to the above embodiment operates as follows.
すなわち、油ポンプ３が運転されると、圧縮機油タンク
２から圧縮機給油配管４に吐出された油の一部が、油配
管５に分岐され、その油は油煕管１１に流れる。That is, when the oil pump 3 is operated, a part of the oil discharged from the compressor oil tank 2 to the compressor oil supply pipe 4 is branched to the oil pipe 5, and the oil flows into the oil pipe 11.
前記ベンチュリ６を油が通過すると、ベンチュリ効果に
よりベンチユニノロにおける抽気配管８が接続されてい
る部位が負圧になる。−その結果、凝縮器７から抽気配
管８に冷媒カス＋不凝縮ガスが吸い上げ身れ、これらの
ガスは抽気配管８に設けられたストレーナ９およびチェ
ック弁１０を通ってベンチュリ６に入り、ついで油配管
５を通って抽気１回瞥器１１咳導かれる。したがって、
凝縮器７内の圧力が大気圧８度または大気圧以下に低下
した場合でも抽気回収器１１へ不凝縮ガスを確実に送入
すること、ができる。−
前！己油配管５から抽隼回収器１１に人？−た油、は、
冷却配管１２を流れる冷水によシ冷却される。一方、油
配管５から抽気回収器１１に導かれた冷媒ガス＋不凝縮
ガスは、前記油により冷却されて冷媒ガスと不凝縮ガス
とに分離され、冷媒ガスは油に溶は込み、不凝縮ガスは
抽気回収器１１内の上部に溜められる。When the oil passes through the venturi 6, the venturi effect creates a negative pressure in the part of the bench unit to which the bleed pipe 8 is connected. - As a result, refrigerant scum + non-condensable gas is sucked up from the condenser 7 into the bleed pipe 8, and these gases pass through the strainer 9 and check valve 10 provided in the bleed pipe 8, enter the venturi 6, and then enter the oil A bleed air tube 11 is led through the pipe 5. therefore,
Even when the pressure inside the condenser 7 drops to 8 degrees atmospheric pressure or below atmospheric pressure, it is possible to reliably feed the non-condensable gas to the bleed gas recovery device 11. - Before! Is there a person from the oil pipe 5 to the extraction collector 11? -Oil, ha,
It is cooled by cold water flowing through the cooling pipe 12. On the other hand, the refrigerant gas + non-condensable gas led from the oil pipe 5 to the bleed gas recovery device 11 is cooled by the oil and separated into refrigerant gas and non-condensable gas, and the refrigerant gas dissolves in the oil and becomes non-condensable. The gas is stored in the upper part of the bleed gas collector 11.
前記抽気回収器１１内に不凝縮ガスが溜ｉｐ、その量が
増加すると油量が減少し、油面が低下する。そして、油
面が一定値以下になるとレベルスイッチ１７からの信号
により不凝縮ガス放出配管１９に設けられた電磁弁２０
が開かれ、抽気回収器１１内の不凝縮ガスは前記電磁弁
２０およびチェック弁２１を通って大気に放出される。When non-condensable gas accumulates in the bleed gas recovery device 11 and its amount increases, the oil amount decreases and the oil level drops. When the oil level falls below a certain value, a signal from the level switch 17 is sent to a solenoid valve 20 provided in the non-condensable gas discharge pipe 19.
is opened, and the non-condensable gas in the bleed gas recovery device 11 is discharged to the atmosphere through the electromagnetic valve 20 and the check valve 21.
したがって、抽気回収器１１で不凝縮ガスを確実に分離
し、その不凝縮ガスを自動的に、確実に大気へ放出する
ことができる。Therefore, the non-condensable gas can be reliably separated in the bleed gas recovery device 11, and the non-condensable gas can be automatically and reliably released to the atmosphere.
不凝縮ガスを大気へ放出するに伴い、抽気回収器１１内
の油面が上昇し、一定値に達すると、レベルスイッチ１
８からの信号により電磁弁２０が閉じられる。As the non-condensable gas is released into the atmosphere, the oil level in the bleed gas collector 11 rises and when it reaches a certain value, the level switch 1
The solenoid valve 20 is closed by the signal from 8.
その間、油ポンプ３の運転と同時に、油戻り配管１３に
設けられた電磁弁１６が開かれる。その結果、抽気回収
器１１内の油は油戻り配管１３に設けられたドライヤ１
４、チェック弁１５および電磁弁１６を通って圧縮機油
タンク２に戻される。During this time, simultaneously with the operation of the oil pump 3, the solenoid valve 16 provided in the oil return pipe 13 is opened. As a result, the oil in the bleed air recovery device 11 is removed from the dryer 1 installed in the oil return pipe 13.
4. Returned to compressor oil tank 2 through check valve 15 and solenoid valve 16.
そして、この実施例では前記ドライヤ１４により、油に
含まれている水分が除去される。In this embodiment, water contained in the oil is removed by the dryer 14.
以上説明した本発明によれば、圧縮機給油配管を通って
圧縮機に流れる油の一部を油配管に分岐し、この油を油
配管に設けられたベンチュリに流し、ベンチュリ効果に
より負圧になった部位に、凝縮器から抽気配管を通じて
吸い上げ、前記ベンチュリを通じて抽気回収器に送るよ
うにしているので、凝縮器内の圧力が大気圧程度または
大気圧以下まで低下した場合でも、不凝縮ガスを抽気回
収器に確実に送り、回収し得る効果があり、しかも抽気
回収器内に不凝縮ガスが溜まり、不凝縮ガスが増加する
ことによって抽気回収器内の油面が一定値以下になった
とき、不凝縮ガス放出配管に設けられた弁を開き、抽気
回収器内の不凝縮ガスを大気に放出するようにしている
ので、回収した不凝縮ガスを自動的に、確実に大気へ放
出し得る効果がある。According to the present invention described above, a part of the oil flowing to the compressor through the compressor oil supply pipe is branched to the oil pipe, and this oil is flowed to the venturi provided in the oil pipe, and the venturi effect creates negative pressure. Since the condenser is sucked up from the condenser through the bleed pipe and sent to the bleed recovery device through the venturi, even if the pressure inside the condenser drops to around or below atmospheric pressure, the non-condensable gas can be removed. When there is an effect that the oil can be reliably sent to the bleed air recovery device and recovered, and when non-condensable gas accumulates in the bleed air recovery device and the oil level in the bleed air recovery device falls below a certain value due to the increase in non-condensable gas. Since the valve installed in the non-condensable gas release pipe is opened and the non-condensable gas in the bleed air recovery device is released to the atmosphere, the recovered non-condensable gas can be automatically and reliably released to the atmosphere. effective.
添付図面は、本発明自動抽気装置の一実施例を示す系統
図である。
１・・・圧縮機、２・・・圧縮機油タンク、３・・・油
ポンプ、４・・・圧縮機給油配管、５・・・油配管、６
・・・ペンチェ１ハ ７・・・凝縮器、８・・・抽気配
管、１１・・・抽気回収器、１２・・・冷却配管、１３
・・・油戻り配管、１７゜１８・・・油面検出器として
のレベルスイッチ、１９・・・不凝縮ガス放出配管、２
０・・・不凝縮ガス放出配管に設けられた弁としての電
磁弁。The accompanying drawing is a system diagram showing one embodiment of the automatic air extraction device of the present invention. 1... Compressor, 2... Compressor oil tank, 3... Oil pump, 4... Compressor oil supply piping, 5... Oil piping, 6
... Penche 1c 7... Condenser, 8... Air bleed pipe, 11... Air bleed recovery device, 12... Cooling pipe, 13
... Oil return piping, 17° 18 ... Level switch as oil level detector, 19 ... Non-condensable gas discharge pipe, 2
0: Solenoid valve as a valve installed in the non-condensable gas discharge pipe.
Claims (1)
から分岐した油配管を接続するとともに、抽気回収器と
圧縮機油タンクとを油戻り配管で接続し、前記油配管に
ベンチュリを設け、該ベンチュリと凝縮機とを抽気配管
で接続し、前記抽械回収器に油面検出器と不凝縮ガス放
出配管とを取９付け、該不凝縮ガス放出配管には抽気回
収器内の油面が一定値以下で開く弁を設けたことを特徴
とする冷凍機の不凝縮ガスの自動抽気装置。An oil pipe branched from the first compressor oil supply pipe is connected to the bleed air recovery device through which a cooling pipe is passed inside, and the bleed air recovery device and the compressor oil tank are connected by an oil return pipe, and a venturi is provided in the oil pipe, The venturi and the condenser are connected with an air bleed pipe, an oil level detector and a non-condensable gas discharge pipe are attached to the extract machine collector, and the non-condensable gas discharge pipe is connected to the oil level in the bleed air collector. 1. An automatic extraction device for non-condensable gas in a refrigerator, characterized in that it is provided with a valve that opens when the amount of gas is below a certain value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2273083A JPS59150280A (en) | 1983-02-16 | 1983-02-16 | Automatic bleeding device for non-condensable gas of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2273083A JPS59150280A (en) | 1983-02-16 | 1983-02-16 | Automatic bleeding device for non-condensable gas of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59150280A true JPS59150280A (en) | 1984-08-28 |
| JPH0155397B2 JPH0155397B2 (en) | 1989-11-24 |
Family
ID=12090862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2273083A Granted JPS59150280A (en) | 1983-02-16 | 1983-02-16 | Automatic bleeding device for non-condensable gas of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59150280A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397837U (en) * | 1990-01-26 | 1991-10-09 | ||
| JPH0510636A (en) * | 1991-07-02 | 1993-01-19 | Daikin Ind Ltd | Oil absorption type gas extraction device for refrigerator |
-
1983
- 1983-02-16 JP JP2273083A patent/JPS59150280A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0397837U (en) * | 1990-01-26 | 1991-10-09 | ||
| JPH0510636A (en) * | 1991-07-02 | 1993-01-19 | Daikin Ind Ltd | Oil absorption type gas extraction device for refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0155397B2 (en) | 1989-11-24 |
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