JPH0245519Y2 - - Google Patents
Info
- Publication number
- JPH0245519Y2 JPH0245519Y2 JP1984092188U JP9218884U JPH0245519Y2 JP H0245519 Y2 JPH0245519 Y2 JP H0245519Y2 JP 1984092188 U JP1984092188 U JP 1984092188U JP 9218884 U JP9218884 U JP 9218884U JP H0245519 Y2 JPH0245519 Y2 JP H0245519Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- refining tank
- pipe
- compressor
- lubricating oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003921 oil Substances 0.000 claims description 87
- 239000010687 lubricating oil Substances 0.000 claims description 40
- 238000007670 refining Methods 0.000 claims description 24
- 238000011084 recovery Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Compressor (AREA)
- Degasification And Air Bubble Elimination (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、例えば、冷凍装置に用いられる油冷
式容積形圧縮機に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an oil-cooled positive displacement compressor used, for example, in a refrigeration system.
（従来の技術）
一般に、油冷式容積形圧縮機は、その用途に応
じ各種のガスに使用されているが、これらの取扱
ガス中には、吸込時、潤滑油に溶解する成分（以
下、油溶解性成分という。）を含むものがある。
例えば、冷凍装置用圧縮機においては、冷媒であ
るフレオンガス、あるいは、COGの精製プラン
トに使用される圧縮機においては、吸込ガスに含
まれるベンゼン、トルエン、キシレン等が潤滑油
に溶解する。(Prior Art) In general, oil-cooled positive displacement compressors are used for various gases depending on the application, but these gases contain components that dissolve in lubricating oil (hereinafter referred to as (referred to as oil-soluble components).
For example, in compressors for refrigeration equipment, Freon gas, which is a refrigerant, is dissolved in lubricating oil, or in compressors used in COG refining plants, benzene, toluene, xylene, etc. contained in suction gas are dissolved in lubricating oil.
ところが、この様な成分が潤滑油に溶解する
と、潤滑油が劣化し、潤滑機能が低下する。 However, when such components are dissolved in lubricating oil, the lubricating oil deteriorates and its lubricating function decreases.
このため、従来は、潤滑油を定期的に分析し、
これが劣化した場合には、圧縮機を停止させ、潤
滑油の一部あるいは全量を交換するか、あるい
は、油溶解性成分を再利用する場合には、別途、
分離回収設備により油溶解性成分を除去して回収
する等の対策がとられていた。 For this reason, in the past, lubricating oil was analyzed periodically,
If this deteriorates, the compressor must be stopped and some or all of the lubricating oil must be replaced, or if the oil-soluble components are to be reused, separate
Measures were taken to remove and recover oil-soluble components using separation and recovery equipment.
（考案が解決しようとする課題）
従つて、潤滑油の交換による維持費がかかるの
は勿論のこと、圧縮機を停止させるための生産性
が低下する。また、油溶解性成分を潤滑油から回
収して再利用するのに、他の分離回収設備に頼ら
ざるを得ないという問題が生じていた。(Problems to be Solved by the Invention) Therefore, not only does the maintenance cost of replacing the lubricating oil increase, but also the productivity of stopping the compressor decreases. In addition, there has been a problem in that in order to recover and reuse oil-soluble components from lubricating oil, other separation and recovery equipment must be used.
本考案は、上記従来の問題点に鑑み、圧縮機本
体の運転と平行して、自動的に潤滑油中の油溶解
性成分を分離することがでる油冷式容積形圧縮機
を提供することを目的とする。 In view of the above conventional problems, the present invention provides an oil-cooled positive displacement compressor that can automatically separate oil-soluble components in lubricating oil in parallel with the operation of the compressor main body. With the goal.
（課題を解決するための手段）
上記目的を達成するため、本考案は、圧縮機本
体から吐出する吐出ガスを油回収器に通して圧縮
ガスと潤滑油とに分離した後、圧縮ガスを消費先
に供給する一方、分離された潤滑油を油クーラを
有する油循環管路を介して圧縮機本体に戻して循
環使用する油冷式容積形圧縮機において、
分離された潤滑油の温度に対応する油溶解性成
分の飽和蒸気圧以下に減圧する減圧手段を有する
油精製タンクと、
油回収器の貯油部と油クーラとの間より分岐し
て、油精製タンクの油面を制御する油面調整弁を
介して油精製タンクに至る導入管路と、
油精製タンクの貯油部より油ポンプ及び逆止弁
を介して前記導入管路の分岐点より下流側の油循
環管路又は圧縮機本体の吸込管路に至る供給管路
と、
を備えたものである。(Means for Solving the Problems) In order to achieve the above object, the present invention passes the discharged gas discharged from the compressor main body through an oil recovery device to separate it into compressed gas and lubricating oil, and then the compressed gas is consumed. In an oil-cooled positive displacement compressor, the lubricating oil is supplied first, and the separated lubricating oil is returned to the compressor body via an oil circulation line with an oil cooler for circulation. an oil refining tank having a pressure reducing means for reducing the pressure to below the saturated vapor pressure of oil-soluble components; and an oil level control system branching from between the oil storage section of the oil recovery device and the oil cooler to control the oil level of the oil refining tank. An introduction pipe leading to the oil refining tank via a regulating valve, and an oil circulation pipe or compressor body downstream from the branch point of the introduction pipe from the oil storage part of the oil refining tank via an oil pump and a check valve. A supply pipe line leading to a suction pipe line, and.
（作用）
前記構成によれば、油回収器で分離された潤滑
油の一部は高温、高圧の吐出状態のまま導入管路
を通つて油精製タンクに導入され、ここで潤滑油
中に含まれる油溶解性成分が蒸発、分離して精製
される。精製された潤滑油は供給管路を通つて油
循環管路又は吸込管路に戻される一方、分離され
た油溶解性成分は再利用に供される。(Function) According to the above configuration, a part of the lubricating oil separated by the oil recovery device is introduced into the oil refining tank through the introduction pipe while maintaining a high temperature and high pressure discharge state, where the lubricating oil contains the lubricating oil. The oil-soluble components are evaporated, separated, and purified. The refined lubricating oil is returned to the oil circulation line or suction line through the supply line, while the separated oil-soluble components are provided for reuse.
（実施例）
次に、本考案の一実施例を図面に従つて説明す
る。(Example) Next, an example of the present invention will be described with reference to the drawings.
第１図は油冷式スクリユ圧縮機を示し、１は圧
縮機本体で、その吸込側には吸込管路ｄが、吐出
側には吐出管路ｅを介して油回収器２が設けられ
ている。また、油回収器２の底部から圧縮機本体
１へは、油クーラ３、油フイルタ４及び油ポンプ
５を有する油循環管路ｆが設けられている。 Fig. 1 shows an oil-cooled screw compressor, in which 1 is the compressor main body, the suction side of which is provided with a suction pipe d, and the discharge side provided with an oil recovery device 2 via a discharge pipe e. There is. Further, an oil circulation pipe f having an oil cooler 3, an oil filter 4, and an oil pump 5 is provided from the bottom of the oil recovery device 2 to the compressor main body 1.
７は内部上方にデミスタ７ａを有する油精製タ
ンクで、このタンク７の下部は、タンク７内のレ
ベルコントローラで作動する油面調節弁６を備え
た導入管路ｂを介して、上記油回収器２の貯油
部、又は図に示すように油回収器２と油クーラ３
の間の油循環管路５に接続されている。また、上
記油精製タンク７の上部は、減圧装置である排気
ポンプ８を備えた排気管路ｃに接続されている。
さらに、油精製タンク７の下部は、油ポンプ９お
よび逆止弁１０を有する供給管路ａを介して上記
導入管路ｂの分岐点より下流側の油循環管路ｆに
接続されている。 Reference numeral 7 denotes an oil refining tank having a demister 7a inside thereof, and the lower part of this tank 7 is connected to the oil recovery device through an introduction pipe b equipped with an oil level control valve 6 operated by a level controller in the tank 7. 2, or oil recovery device 2 and oil cooler 3 as shown in the figure.
It is connected to the oil circulation pipe 5 between. Further, the upper part of the oil refining tank 7 is connected to an exhaust pipe c equipped with an exhaust pump 8 which is a pressure reducing device.
Further, the lower part of the oil refining tank 7 is connected to an oil circulation pipe f downstream of the branch point of the introduction pipe b via a supply pipe a having an oil pump 9 and a check valve 10.
なお、１１は上記排気管路ｃに設けた低溜分回
収器である。 Note that 11 is a low distillate recovery device provided in the exhaust pipe c.
以下、上記構成からなる油冷式容積形圧縮機の
作用について説明する。 The operation of the oil-cooled positive displacement compressor having the above configuration will be explained below.
圧縮機本体１から吐出した吐出ガスは油回収器
２により圧縮ガスと潤滑油とに分離され、圧縮ガ
スは油回収器２の上部から所定の消費場所に供給
される一方、分離された潤滑油は油循環管路ｆを
介して圧縮機本体１の吸込側に戻される。 The discharged gas discharged from the compressor main body 1 is separated into compressed gas and lubricating oil by the oil recovery device 2, and the compressed gas is supplied from the upper part of the oil recovery device 2 to a predetermined consumption location, while the separated lubricating oil is is returned to the suction side of the compressor main body 1 via the oil circulation pipe f.
また、分離された潤滑油の一部は、導入管路ｂ
により、油面調節弁６を通して油精製タンク７に
導入される。なお、油精製タンク７は、導入され
た潤滑油の温度に対応する油溶解性成分の飽和蒸
気圧以下に、減圧ポンプ８にて減圧されている。
この減圧ポンプ８による減圧は、当該油精製タン
ク７に導入される潤滑油が高温、高圧状態にある
ため、迅速、容易かつ大幅に行なうことができ
る。油面調節弁６が開くと、直ちに、油回収器２
と油精製タンク７との圧力差により潤滑油が油精
製タンク７に流入すると同時に、飽和温度が低下
して沸騰により油溶解性成分が蒸発し分離され
る。この分離された油溶解性成分を、減圧ポンプ
８を通して外部へ排出することにより、精製が完
了する。 In addition, a part of the separated lubricating oil is transferred to the introduction pipe b
The oil is introduced into the oil refining tank 7 through the oil level control valve 6. Note that the pressure in the oil refining tank 7 is reduced by a pressure reducing pump 8 to below the saturated vapor pressure of the oil-soluble component corresponding to the temperature of the introduced lubricating oil.
Since the lubricating oil introduced into the oil refining tank 7 is in a high temperature and high pressure state, the pressure reduction by the pressure reduction pump 8 can be performed quickly, easily and to a large extent. As soon as the oil level control valve 6 opens, the oil recovery device 2
At the same time as the lubricating oil flows into the oil refining tank 7 due to the pressure difference between the lubricating oil and the oil refining tank 7, the saturation temperature decreases and oil-soluble components are evaporated and separated by boiling. By discharging this separated oil-soluble component to the outside through the vacuum pump 8, purification is completed.
次に、油ポンプ９の駆動により、精製された潤
滑油は、逆止弁１０を介して、油循環管路ｆに戻
される。この時、油精製タンク７の油面が下がる
が、油面調整弁６を開閉させるレベルコントロー
ラによつて、設定された油面の下限より油面が下
がつた場合には、油面調節弁６が開き、油回収器
２から未精製の潤滑油が導入される。 Next, by driving the oil pump 9, the purified lubricating oil is returned to the oil circulation pipe f via the check valve 10. At this time, the oil level in the oil refining tank 7 drops, but if the oil level falls below the lower limit of the oil level set by the level controller that opens and closes the oil level adjustment valve 6, the oil level adjustment valve 6 6 is opened, and unrefined lubricating oil is introduced from the oil recovery device 2.
従つて、減圧ポンプ８及び油ポンプ９を常時運
転することにより、潤滑油の精製が連続的に行な
われることになる。なお、油溶解性成分の溶解量
が許容レベル以下であれば、必ずしも常時運転す
る必要はなく、バツチで運転すればよい。 Therefore, by constantly operating the vacuum pump 8 and the oil pump 9, the lubricating oil is continuously purified. Note that, as long as the amount of dissolved oil-soluble components is below the allowable level, it is not necessarily necessary to operate constantly, and it is sufficient to operate in batches.
一方、分離された油溶解性成分は低溜分回収器
１１を通して再利用に供される。 On the other hand, the separated oil-soluble components are passed through the low-distillate fraction collector 11 for reuse.
本実施例においては、精製された潤滑油を、供
給管路ａによつて油循環管路ｆに戻したが、これ
に限定されるものではなく、低圧側であればよ
く、例えば、圧縮機本体１の吸込管路ｄに供給し
てもよい（第１図において、管路a′にて示す。）。 In this embodiment, the purified lubricating oil was returned to the oil circulation pipe f through the supply pipe a, but the supply pipe a is not limited to this, and it may be used as long as it is on the low pressure side. It may also be supplied to the suction pipe d of the main body 1 (indicated by pipe a' in FIG. 1).
また、本実施例において、油回収器２で分離さ
れた潤滑油の全量を油精製タンク７に導入しない
で、一部のみ精製して圧縮機本体１の吸込側へ供
給しているのは、油溶解性成分の溶解量がある最
大値を越えなければ、潤滑油の劣化が生じないと
いう事実に基づくものであり、必ずしも、分離さ
れた潤滑油を全て精製しなければならないという
ものではないからである。 Furthermore, in this embodiment, the whole amount of the lubricating oil separated by the oil recovery device 2 is not introduced into the oil refining tank 7, but only a part of it is refined and supplied to the suction side of the compressor main body 1. This is based on the fact that deterioration of the lubricating oil will not occur unless the amount of dissolved oil-soluble components exceeds a certain maximum value, and it does not necessarily mean that all of the separated lubricating oil must be purified. It is.
（考案の効果）
本考案によれば、油回収器で分離された潤滑油
の一部を導入管路を介して油精製タンクに導入
し、精製された潤滑油を供給管路を介して油循環
管路又は吸込管路に戻すようにしているので、圧
縮機本体の運転を停止することなく、並行して、
自動的に、潤滑油中に含まれる油溶解性成分を分
離することができる。(Effects of the invention) According to the invention, a part of the lubricating oil separated by the oil recovery device is introduced into the oil refining tank via the introduction pipe, and the purified lubricating oil is transferred to the oil refinery tank via the supply pipe. Since it is returned to the circulation pipe or suction pipe, the compressor can be
Oil-soluble components contained in lubricating oil can be automatically separated.
また、油回収器で分離された潤滑油を高温、高
圧の吐出状態のまま油精製タンクに導入している
ので、油精製タンクの減圧は迅速、容易かつ大幅
に行なえ、減圧手段を安価で簡単な構成のものに
することができる。 In addition, since the lubricating oil separated by the oil recovery device is introduced into the oil refining tank in a high-temperature, high-pressure discharged state, the pressure in the oil refining tank can be quickly, easily and significantly reduced, and the depressurization method is inexpensive and simple. It can be configured as follows.
さらに、減圧手段及び油ポンプを連続あるいは
バツチで運転することにより、油溶解性成分の溶
解量を一定レベルに押えることができるので、潤
滑油は常に最適粘度に保持され、性状が変化せず
劣化することはない。従つて、潤滑油の交換が不
要となり、機械寿命が延長され長時間運転も可能
となるうえ、新たな油回収設備を設置する必要が
なくなるという効果を有している。 Furthermore, by operating the pressure reduction means and oil pump continuously or in batches, it is possible to suppress the amount of dissolved oil-soluble components to a certain level, so the lubricating oil is always maintained at an optimal viscosity and its properties do not change and deteriorate. There's nothing to do. Therefore, there is no need to replace the lubricating oil, the life of the machine is extended, long-term operation is possible, and there is no need to install new oil recovery equipment.
第１図は、本考案に係る油冷式容積形スクリユ
圧縮機の系統図である。
１……圧縮機本体、２……油回収器、６……油
面調節弁、７……油精製タンク、８……減圧ポン
プ、９……油ポンプ、１０……逆止弁、ａ……供
給管路、ｂ……導入管路、ｄ……吸込管路。
FIG. 1 is a system diagram of an oil-cooled positive displacement screw compressor according to the present invention. 1... Compressor body, 2... Oil recovery device, 6... Oil level control valve, 7... Oil refining tank, 8... Pressure reduction pump, 9... Oil pump, 10... Check valve, a... ...Supply pipe line, b...Introduction pipe line, d...Suction pipe line.
Claims (1)
通して圧縮ガスと潤滑油とに分離した後、圧縮ガ
スを消費先に供給する一方、分離された潤滑油を
油クーラを有する油循環管路を介して圧縮機本体
に戻して循環使用する油冷式容積形圧縮機におい
て、 分離された潤滑油の温度に対応する油溶解性成
分の飽和蒸気圧以下に減圧する減圧手段を有する
油精製タンクと、 油回収器の貯油部と油クーラとの間より分岐し
て、油精製タンクの油面を制御する油面調整弁を
介して油精製タンクに至る導入管路と、 油精製タンクの貯油部より油ポンプ及び逆止弁
を介して前記導入管路の分岐点より下流側の油循
環管路又は圧縮機本体の吸込管路に至る供給管路
と、 を備えたことを特徴とする油冷式容積形圧縮機。[Claim for Utility Model Registration] After passing the discharged gas discharged from the compressor main body through an oil recovery device and separating it into compressed gas and lubricating oil, the compressed gas is supplied to the consumer while the separated lubricating oil is In an oil-cooled positive displacement compressor that circulates the oil back to the compressor body via an oil circulation line with an oil cooler, the pressure is reduced to below the saturated vapor pressure of the oil-soluble components corresponding to the temperature of the separated lubricating oil. an oil refining tank having a pressure reducing means to reduce the pressure; and an inlet pipe that branches from between the oil storage section of the oil recovery device and the oil cooler and leads to the oil refining tank via an oil level adjustment valve that controls the oil level in the oil refining tank. and a supply pipe leading from the oil storage part of the oil refining tank to the oil circulation pipe or the suction pipe of the compressor main body downstream from the branch point of the introduction pipe via the oil pump and check valve; An oil-cooled positive displacement compressor characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9218884U JPS616699U (en) | 1984-06-19 | 1984-06-19 | Oil-cooled positive displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9218884U JPS616699U (en) | 1984-06-19 | 1984-06-19 | Oil-cooled positive displacement compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS616699U JPS616699U (en) | 1986-01-16 |
| JPH0245519Y2 true JPH0245519Y2 (en) | 1990-12-03 |
Family
ID=30648760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9218884U Granted JPS616699U (en) | 1984-06-19 | 1984-06-19 | Oil-cooled positive displacement compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS616699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1223344A1 (en) | 1999-10-29 | 2002-07-17 | Mayekawa Mfg Co.Ltd. | System for compressing contaminated gas |
| JP2013539818A (en) * | 2010-10-11 | 2013-10-28 | バレロ・エナジー・コーポレーシヨン | Method and system for regenerating compressor lubricant |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2531930Y2 (en) * | 1989-09-14 | 1997-04-09 | カシオ計算機株式会社 | Liquid crystal display |
| DE102018208970A1 (en) * | 2018-06-06 | 2019-12-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Compressor, heat pump or air conditioning or cold machine and method of compacting |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524766A (en) * | 1975-06-27 | 1977-01-14 | Aeronutronic Ford Corp | Circuit for converting orthogonal coordinates to polar coordinates |
-
1984
- 1984-06-19 JP JP9218884U patent/JPS616699U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524766A (en) * | 1975-06-27 | 1977-01-14 | Aeronutronic Ford Corp | Circuit for converting orthogonal coordinates to polar coordinates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1223344A1 (en) | 1999-10-29 | 2002-07-17 | Mayekawa Mfg Co.Ltd. | System for compressing contaminated gas |
| JP2013539818A (en) * | 2010-10-11 | 2013-10-28 | バレロ・エナジー・コーポレーシヨン | Method and system for regenerating compressor lubricant |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616699U (en) | 1986-01-16 |
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