JPH03168383A - Adjustment of oiling amount by discharge temperature control - Google Patents
Adjustment of oiling amount by discharge temperature controlInfo
- Publication number
- JPH03168383A JPH03168383A JP30769089A JP30769089A JPH03168383A JP H03168383 A JPH03168383 A JP H03168383A JP 30769089 A JP30769089 A JP 30769089A JP 30769089 A JP30769089 A JP 30769089A JP H03168383 A JPH03168383 A JP H03168383A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- temperature
- compressor
- amount
- separator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- RYMZZMVNJRMUDD-HGQWONQESA-N simvastatin Chemical compound C([C@H]1[C@@H](C)C=CC2=C[C@H](C)C[C@@H]([C@H]12)OC(=O)C(C)(C)CC)C[C@@H]1C[C@@H](O)CC(=O)O1 RYMZZMVNJRMUDD-HGQWONQESA-N 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 64
- 239000010687 lubricating oil Substances 0.000 description 24
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は油冷式圧縮機の負荷変動時における本体への給
油量の調整により、動力軽減，騒音，振動の低減、およ
び、ドレン凝縮の抑制方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention reduces power, reduces noise and vibration, and reduces condensate condensation by adjusting the amount of oil supplied to the main body when the load of an oil-fed compressor changes. Concerning suppression methods.
圧縮機運転中の吐出しガス温度を一定に保つ方法は、第
２図に示すように、オイルセパレータ内の吐出しガス温
度を検出し、オイルセパレータ、および、オイルクーラ
出口配管上に三方弁を設け，規定温度より低い場合はバ
イパス側を開き、高い場合は、オイルクーラ側を開き、
吐出しガス温度を規定温度に保つ等の方法がある。The method of keeping the discharge gas temperature constant during compressor operation is to detect the discharge gas temperature in the oil separator and install a three-way valve on the oil separator and oil cooler outlet piping, as shown in Figure 2. If the temperature is lower than the specified temperature, open the bypass side, and if the temperature is higher, open the oil cooler side.
There are methods such as keeping the discharge gas temperature at a specified temperature.
また，起動時の負荷軽減装置として、オイルセパレータ
と圧縮機本体内部との配管上に弁を設け，停止時の本体
内部残油を強制時に回収する方法がある。Furthermore, as a load reduction device during startup, there is a method in which a valve is provided on the piping between the oil separator and the inside of the compressor main body, and the residual oil inside the main body when the compressor is stopped is forcedly recovered.
前述の従来技術は、ドレンの凝縮を抑制する目的であり
、オイルセパレータ内の吐出しガス温度を一定に保つた
めに、オイルセパレータからの高温油をオイルクーラを
通過させるか、または、バイパスさせるもので、圧縮機
本体への潤滑油量の調整は行っておらず、動力軽減，騒
音，振動の低減については考慮されていない。The purpose of the above-mentioned conventional technology is to suppress condensation of condensate, and in order to keep the discharge gas temperature in the oil separator constant, high-temperature oil from the oil separator is passed through an oil cooler or bypassed. However, the amount of lubricating oil in the compressor body is not adjusted, and power reduction, noise, and vibration reduction are not considered.
本発明の目的は、例えば、オイルセバレー夕内圧力と圧
縮機本体との差圧を利用して給油する方式の場合は、５
０Ｈｚと６０Ｈｚ地区では圧縮機出力、回転数が相違し
ても差圧が、ほぼ、同一なため、本体への潤滑油量は等
しくなり、６ Ｑ Ｈ ｚに比し、５０Ｈｚの場合の潤
滑油量が過大となり、負荷増大，潤滑油の噛み込み音、
振動等が大きくなるなど不具合が生じるため行うもので
ある。The object of the present invention is, for example, in the case of a system in which oil is supplied using the differential pressure between the pressure inside the oil separator and the compressor main body,
In the 0Hz and 60Hz areas, even if the compressor output and rotation speed are different, the differential pressure is almost the same, so the amount of lubricating oil to the main body is the same, and the amount of lubricating oil at 50Hz is lower than that at 6Q Hz. The amount becomes too large, resulting in increased load, lubricant noise,
This is done because problems such as increased vibrations may occur.
また，容量調整時（吸入絞り式）には圧縮機本体吸入側
は高真空となり，オイルセパレータとの差圧がさらに大
きくなり、潤滑油量が増大するため不具合が顕著となる
。Additionally, when adjusting the capacity (suction throttling type), the suction side of the compressor body becomes a high vacuum, the differential pressure with the oil separator further increases, and the amount of lubricating oil increases, making problems more noticeable.
また、圧縮機本体への給油を容積式ギヤポンプなどを用
い強制的に行う場合には、吐出し圧力が変化（低下）し
ても、ほぼ、定容量で給油を行うため、出力低下の割に
は潤滑油量が過大となり、前述と同様な不具合が発生す
る。In addition, when the compressor body is forcibly supplied with oil using a positive displacement gear pump, etc., even if the discharge pressure changes (decreases), the oil is supplied at a constant volume, so it is difficult to compensate for the decrease in output. In this case, the amount of lubricating oil becomes excessive, and the same problem as mentioned above occurs.
本発明の目的は，オイルセパレータと圧縮機本体との差
圧で行う自圧給油式，あるいは，ギヤポンプ給油式で、
回転数変化，吐出し圧力変化，容量変化などによる出力
変化に応じ、圧縮機本体への潤滑油量を吐出し温度によ
って調整し、動力の軽減，油の噛み込み音の低減，振動
の低減を図り、さらに、オイルセパレータでのドレンの
凝縮を抑制することにある。The purpose of the present invention is to provide a self-pressure oil supply system using the differential pressure between the oil separator and the compressor body, or a gear pump oil supply system.
The amount of lubricating oil to the compressor body is adjusted according to the discharge temperature in response to output changes due to changes in rotation speed, discharge pressure, capacity, etc., reducing power consumption, oil trapping noise, and vibration. Furthermore, the purpose is to suppress condensation of condensate on the oil separator.
上記目的を達成するために、本発明はオイルクーラから
圧縮機本体への給油配管上にモジュトロールモータ式の
三方弁を設置し、オイルセパレータの吐出しガス温度検
出用として測温抵抗体を用い、この抵抗値を温度調節器
で受け、モジュトロールモータに信号を送り、規定温度
以下の場合モジュトロールモータに連結された三方弁の
開度を調整し、本体への潤滑油量を絞り、強制的に吐出
し、ガス温度を上昇させると同時に、動力の軽減，騒音
，振動の低減をはかる。In order to achieve the above object, the present invention installs a Modutrol motor-type three-way valve on the oil supply pipe from the oil cooler to the compressor main body, and uses a resistance temperature sensor to detect the temperature of the discharged gas of the oil separator. This resistance value is received by the temperature controller, and a signal is sent to the Modutrol motor. If the temperature is below the specified temperature, the opening degree of the three-way valve connected to the Modutrol motor is adjusted, the amount of lubricating oil to the main body is reduced, and the The gas is discharged in a controlled manner to raise the gas temperature, while at the same time reducing power consumption, noise, and vibration.
吐出しガス温度を一定にするため、従来技術でも述べた
ように、オイルセパレータからの高温の潤滑油を、吐出
しガス温度に応じ、オイルクーラ側、または、バイパス
を開き、本体に給油する方法などがあるが、潤滑油量の
絶対量は変えていないため一定である。In order to keep the temperature of the discharged gas constant, as described in the prior art, there is a method in which high-temperature lubricating oil from the oil separator is supplied to the main body by opening the oil cooler side or bypass depending on the temperature of the discharged gas. However, the absolute amount of lubricating oil remains constant because it does not change.
また、吸入容量調整時に潤滑油量の過大化を防ぐため，
油量を絞る方式もあるが、本方式は容量制御時のみ行う
ものであり、負荷条件に伴う温度の変化を検知して行う
ものではない。In addition, in order to prevent the amount of lubricating oil from increasing when adjusting the suction capacity,
There is also a method of reducing the amount of oil, but this method is only used when controlling capacity, and is not done by detecting changes in temperature associated with load conditions.
オイルセパレータの吐出しガス温度を一定に保つための
検出端には、測温抵抗体を使用し、この抵抗値を温度調
節器で受け、あらかじめ、設定された温度との偏差によ
り、モジュトロールモータに信号を送り、このモータを
正，逆回転させることにより連結された三方弁の開度を
調整し、吐出しガス温度が設定温度より低い場合には，
オイルクーラからの潤滑油をオイルクーラ、または、オ
イルセパレータにバイパスさせ、圧縮機本体への潤滑油
量を絞る。A temperature measuring resistor is used at the detection end to keep the temperature of the discharged gas of the oil separator constant, and this resistance value is received by a temperature controller. The opening of the connected three-way valve is adjusted by sending a signal to and rotating this motor in forward and reverse directions.If the discharge gas temperature is lower than the set temperature,
The lubricating oil from the oil cooler is bypassed to the oil cooler or oil separator to reduce the amount of lubricating oil to the compressor body.
なお、モジュトロールモータ付三方弁の設置場所につい
ては、圧縮機本体への給油回路上とし、軸封，軸受部へ
の給油回路はその前段として、油量絞りの影響を受けな
いようにし、信頼性の維持を図る。The three-way valve with Modutrol motor should be installed on the oil supply circuit to the compressor main body, and the oil supply circuit to the shaft seal and bearing section should be installed in the front stage so that it will not be affected by oil flow restriction. Try to maintain sexuality.
これによって、あらゆる運転（負荷）条件においても、
吐出しガス温度に応じて、潤滑油を供給することができ
、無駄な動力を省くとともに、騒音，振動の低減を図る
ことが可能となる。As a result, under all operating (load) conditions,
Lubricating oil can be supplied according to the temperature of the discharged gas, making it possible to eliminate unnecessary power and reduce noise and vibration.
さらに，オイルセパレー夕内の吐出しガス温度を一定に
保つことにより、ドレンの凝縮を抑制することができる
。Furthermore, by keeping the discharge gas temperature within the oil separator constant, condensation of condensate can be suppressed.
以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.
吸入絞り弁１を経たガスは、電動Ｉａ２に直結された圧
縮機３により所定圧力まで圧縮され、オイルセパレータ
４に入り、大部分の油分を分離された後、ユーザ側に導
かれる。The gas that has passed through the suction throttle valve 1 is compressed to a predetermined pressure by the compressor 3 directly connected to the electric motor Ia2, enters the oil separator 4, and is led to the user side after most of the oil is separated.
一方、オイルセパレータ４により分離された潤滑油は，
圧縮熱により高温となっているため、オイルクーラ５に
４かれ、冷却されオイルフィルタ６を経て、オイルセパ
レータ４との差圧により、給油配管７を経て、圧縮機吸
入側８に導かれる。On the other hand, the lubricating oil separated by the oil separator 4 is
Since the oil is at a high temperature due to the heat of compression, it is cooled by an oil cooler 5, passes through an oil filter 6, and is guided to the compressor suction side 8 via an oil supply pipe 7 due to the differential pressure with the oil separator 4.
ここで、再び、圧縮ガスの冷却，潤滑，シール等の役割
を果たし、圧縮ガスとともにオイルセパレータ４に入り
循環される。Here, it once again plays the role of cooling, lubricating, and sealing the compressed gas, and enters the oil separator 4 together with the compressed gas to be circulated.
なお、潤滑油温度はオイルクーラ５の通過量とバイパス
量を油温度調節弁９の開度によって調整され、圧縮機３
に導かれる。Note that the lubricating oil temperature is adjusted by the amount of passage through the oil cooler 5 and the amount of bypass by the opening degree of the oil temperature control valve 9.
guided by.
また、給油配管７と圧縮機吸入側８間には、モジュトロ
ールモータ１０とと直結された三方弁１１を設け，さら
に、オイルセパレータ４内吐出しガス温度を測定抵抗体
１２により検知し、この抵抗値を温度調節器１３で受け
、あらかじめ設定された温度との偏差により、モジュト
ロールモータ１０に信号を送り、このモータの正，逆転
により設定温度以下であれば、給油配管７を経た潤滑油
をバイパス配管１４に送り、圧縮機吸入側８への給油量
を無段階に絞る。設定温度以上であれば、全量を圧縮機
吸入側８へ送る。Furthermore, a three-way valve 11 directly connected to the Modutrol motor 10 is provided between the oil supply pipe 7 and the compressor suction side 8, and the temperature of the discharged gas in the oil separator 4 is detected by a measuring resistor 12. The resistance value is received by the temperature controller 13, and depending on the deviation from the preset temperature, a signal is sent to the Modutrol motor 10. If the temperature is below the set temperature due to the forward and reverse rotation of this motor, the lubricating oil is supplied through the oil supply pipe 7. is sent to the bypass pipe 14, and the amount of oil supplied to the compressor suction side 8 is steplessly throttled. If the temperature is higher than the set temperature, the entire amount is sent to the compressor suction side 8.
ここで、軸封給油配管１５および軸受給油配管１６につ
いては、三方弁１１の一次側より接続し、三方弁１１の
動作の影響を受けないよう潤滑油量を確保する。Here, the shaft seal oil supply pipe 15 and the bearing oil supply pipe 16 are connected from the primary side of the three-way valve 11 to ensure the amount of lubricating oil so as not to be affected by the operation of the three-way valve 11.
本実施例によれば，出力変化に応じ、例えば、容量制御
時には、出力低下にかからわず，吸入側が高真空となる
ため、オイルセパレータとの差圧が大となり、潤滑油量
が過大となり、負荷の増加、油の噛み込み音５振動が増
大し、吐出しガスｄ度が低下するため、この温度を検出
し、適量の潤滑油を圧縮機本体に供給することにより、
これらの解消を図る。According to this embodiment, in response to a change in output, for example, during capacity control, a high vacuum is created on the suction side regardless of a decrease in output, resulting in a large differential pressure with the oil separator and an excessive amount of lubricating oil. , an increase in load, an increase in oil trapping noise, vibrations, and a decrease in discharge gas temperature.By detecting this temperature and supplying an appropriate amount of lubricating oil to the compressor body,
We will try to resolve these issues.
また、出力変化の例で、納入場所が５０Ｈｚと６０Ｈｚ
の場合では、電動機の回転数が異なり、約２０％差が生
じるが、実施例のように，ギヤポンプを付属しない自圧
給油式では、オイルセパレータ内圧力と圧縮機吸入側圧
力が、５０，Ｈｚ，６０Ｈｚそれぞれ同一であるため、
潤滑油量が、ほぼ、同一となり、５０Ｈｚの場合が、６
０ ■ｌ ｚに比し、潤滑油量が過大となるため、前
述と同様に吐出しガス温度を検出し、適量の潤滑油を供
給することにより、負荷の軽減，油の噛み込み音，振動
の低減を図ることができる。さらに、吐出しガス温度の
一定化により、ドレンの凝縮抑制にも効果がある。In addition, as an example of output change, the delivery location is 50Hz and 60Hz.
In the case of , the rotation speed of the electric motor is different and there is a difference of about 20%, but in the self-pressure oil supply type without a gear pump attached as in the example, the oil separator internal pressure and compressor suction side pressure are 50, Hz. , 60Hz are the same, so
The amount of lubricating oil is almost the same, and in the case of 50Hz, it is 6
Since the amount of lubricating oil is excessive compared to It is possible to reduce the Furthermore, by keeping the temperature of the discharged gas constant, it is also effective in suppressing condensation of condensate.
本発明によれば，圧縮機の負荷変化（容量調節時，また
は周波数の変化など）を供給潤滑油量によるオイルセパ
レー夕内ガス温度の変動として検出し、規定温度以下で
あれば圧縮機本体への潤滑油量を絞り，動力軽減を図る
。また、油の噛み込み音，振動を防止するととも，ガス
温度を上昇させることにより、ドレンの凝縮を抑制する
。According to the present invention, compressor load changes (such as during capacity adjustment or frequency changes) are detected as fluctuations in the gas temperature in the oil separator due to the amount of lubricating oil supplied, and if the temperature is below a specified temperature, the gas is transferred to the compressor main body. The amount of lubricating oil is reduced to reduce power. In addition, it prevents oil clogging noise and vibration, and by increasing the gas temperature, condensation of condensate is suppressed.
また、実施例ではオイルセパレータと圧縮機本体吸入側
との差圧による自圧給油方式を説明したが、ギヤポンプ
による強制給油方式の場合、本発明の装置を採用すれば
、吐出しガス圧力の変化（低下）に対しても有効である
。即ち、容積式ギヤポンプの場合の吐出し容量は、吐出
し圧力の変化に対しさほど変動はないため、負荷に対し
潤滑油量が過大となる。従って、前述と同様不具合を解
消することができる。In addition, in the embodiment, a self-pressure lubrication method using the differential pressure between the oil separator and the suction side of the compressor body was explained, but in the case of a forced lubrication method using a gear pump, if the device of the present invention is adopted, the discharge gas pressure can be changed. It is also effective against (deterioration). That is, in the case of a positive displacement gear pump, the discharge capacity does not change much with respect to changes in discharge pressure, so the amount of lubricating oil becomes excessive with respect to the load. Therefore, the same problem as described above can be solved.
第１図は本発明の一実施例の機器系統図、第２図は従来
の機器系統図である。
１・・・吸入絞り弁、２・・・電動機、３・・・圧縮機
、４・・オイルセパレータ、５・・・オイルクーラ、６
・・・オイルフィルタ、７・・・給油配管、８・・・圧
縮機吸入側、竿
２
図FIG. 1 is an equipment system diagram of an embodiment of the present invention, and FIG. 2 is a conventional equipment system diagram. 1... Suction throttle valve, 2... Electric motor, 3... Compressor, 4... Oil separator, 5... Oil cooler, 6
...Oil filter, 7.Oil supply pipe, 8.Compressor suction side, rod 2 Figure
Claims (1)
油量調整装置を設け、負荷変化に応じた吐出しガス温度
を測温抵抗体で検出し、温度調節器を介して、油量調整
装置に信号を送り、規定温度以下で圧縮機本体への給油
量をバイパスさせ、動力軽減を図るとともに、騒音、振
動の低減、および、吐出し温度を一定に保持することに
よるドレンの凝縮抑制を図つたことを特徴とする吐出し
温度制御による給油量の調整方法。[Claims] 1. In an oil-cooled rotary compressor, a trigonal oil amount adjustment device is provided on the oil supply pipe from the oil cooler to the compressor body, and the discharge gas temperature is measured in response to load changes. Detected by a resistor, a signal is sent to the oil amount adjustment device via a temperature controller, and the amount of oil supplied to the compressor body is bypassed when the temperature is below a specified temperature, reducing power and reducing noise and vibration. A method for adjusting the amount of oil supplied by controlling the discharge temperature, characterized in that condensation of condensate is suppressed by maintaining the discharge temperature constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30769089A JPH03168383A (en) | 1989-11-29 | 1989-11-29 | Adjustment of oiling amount by discharge temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30769089A JPH03168383A (en) | 1989-11-29 | 1989-11-29 | Adjustment of oiling amount by discharge temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03168383A true JPH03168383A (en) | 1991-07-22 |
Family
ID=17972052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30769089A Pending JPH03168383A (en) | 1989-11-29 | 1989-11-29 | Adjustment of oiling amount by discharge temperature control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03168383A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085045A (en) * | 2007-09-28 | 2009-04-23 | Hitachi Industrial Equipment Systems Co Ltd | Oil-cooled air compressor |
| JP2012107623A (en) * | 2010-11-18 | 2012-06-07 | Hamilton Sundstrand Corp | Heat exchanger system and operation method thereof |
| JP2012112268A (en) * | 2010-11-22 | 2012-06-14 | Kobe Steel Ltd | Oil-cooling type compressor |
| TWI635221B (en) * | 2017-10-11 | 2018-09-11 | 復盛股份有限公司 | Oiling method for compressor |
-
1989
- 1989-11-29 JP JP30769089A patent/JPH03168383A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085045A (en) * | 2007-09-28 | 2009-04-23 | Hitachi Industrial Equipment Systems Co Ltd | Oil-cooled air compressor |
| JP2012107623A (en) * | 2010-11-18 | 2012-06-07 | Hamilton Sundstrand Corp | Heat exchanger system and operation method thereof |
| US9658005B2 (en) | 2010-11-18 | 2017-05-23 | Hamilton Sundstrand Corporation | Heat exchanger system |
| JP2012112268A (en) * | 2010-11-22 | 2012-06-14 | Kobe Steel Ltd | Oil-cooling type compressor |
| TWI635221B (en) * | 2017-10-11 | 2018-09-11 | 復盛股份有限公司 | Oiling method for compressor |
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