JPH03130596A - Differential pressure detecting device for oil separator element - Google Patents
Differential pressure detecting device for oil separator elementInfo
- Publication number
- JPH03130596A JPH03130596A JP26492689A JP26492689A JPH03130596A JP H03130596 A JPH03130596 A JP H03130596A JP 26492689 A JP26492689 A JP 26492689A JP 26492689 A JP26492689 A JP 26492689A JP H03130596 A JPH03130596 A JP H03130596A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- differential pressure
- oil separator
- separator element
- detector
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 8
- 238000001816 cooling Methods 0.000 abstract 2
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001052 transient effect 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、油冷式スクリュー圧縮機のオイルセパレータ
エレメントの差圧検出装置に関し、もれによる吐出空気
へυ油流出を防止する装置ｔＫ関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a differential pressure detection device for an oil separator element of an oil-cooled screw compressor, and relates to a device tK for preventing υ oil from leaking into the discharge air due to leakage. .
従来は、差圧検出器内部の洩れに対し、特別な配慮ハせ
ずに、オイルセパレータエレメントの一次側と二次側を
差圧検出器に接続することが多い洩れた場合を考慮した
例としては以下の方法もある。Conventionally, the primary and secondary sides of the oil separator element were often connected to the differential pressure detector without any special considerations for leaks inside the differential pressure detector. There is also the following method.
差圧検出器に導くオイルセパレータエレメントの圧力と
して、オイルセパレータエレメントで分離した油を圧縮
機吸入口にもどす配管があり、この配＝ｇを分岐しオイ
ルセパレータエレメントの二次側圧力とみなす方法であ
る。この油もどし配管は、常に空気と油が流れているの
で、実際のオイルセパレータの２次側圧力より低い値に
なっているので、その低下分を見込んだ差圧設定が必要
になるが、差圧検出器内部にもれが生じても、もれた油
は圧縮機吸入口へ回収される。There is a pipe that returns the oil separated by the oil separator element to the compressor suction port as the pressure of the oil separator element leading to the differential pressure detector, and this pipe = g is branched and can be regarded as the secondary side pressure of the oil separator element. be. Air and oil always flow through this oil return piping, so the pressure on the secondary side of the actual oil separator is lower than the pressure on the secondary side of the oil separator, so it is necessary to set the differential pressure to account for this drop. Even if a leak occurs inside the pressure detector, the leaked oil will be collected into the compressor suction port.
従来技術では、差圧検出器内部でもれが発生しても差圧
は減少するので異常として検出できないまた、前記従来
技術で記載した直接オイルセパレータエレメントの差圧
を検出する方法ではもれが生じたときに吐出空気中に多
量の油が混入する欠点がある。In the conventional technology, even if a leak occurs inside the differential pressure detector, the differential pressure decreases, so it cannot be detected as an abnormality.Furthermore, in the method described in the prior art, which directly detects the differential pressure of the oil separator element, the leak occurs. The disadvantage is that a large amount of oil gets mixed into the discharged air when
−万、油回収配管を分岐して使う方法は、オイルセパレ
ータエレメントの差圧を直接検出するときに比べ、裕度
な大きくとる必要がある。また、起動時など吐出圧力が
急変するような過渡時に対しタイマーで検出除外時間を
設けるなどの工夫が必要である。-The method of using a branched oil recovery pipe requires a larger margin than the method of directly detecting the differential pressure of the oil separator element. In addition, it is necessary to take measures such as setting a detection exclusion time using a timer for transient times when the discharge pressure changes suddenly, such as during startup.
本発明の目的は、オイルセパレータエレメントの差圧検
出器の内部洩れを検出し、吐出し空気中に多量の油が流
出することを防止することにある〔課題を解決するため
Ｄ手段〕
上記目的を達成するために、オイルセパレータエレメン
トの二次側と差圧検出器の間の配管に温度検出器を設け
、差圧検出器に内部洩れが生じたとき、洩れた空気と油
の持つ温度を検出し、圧縮機を停止賂せる。あるいは差
圧検出器の配管を遮断し油の流出を防止する電磁弁な設
けたものである。An object of the present invention is to detect internal leakage of a differential pressure detector of an oil separator element and to prevent a large amount of oil from leaking into the discharged air. [Means D for solving the problem] The above object In order to achieve this, a temperature sensor is installed in the piping between the secondary side of the oil separator element and the differential pressure detector, and when an internal leak occurs in the differential pressure detector, the temperature of the leaked air and oil can be detected. Detect and bribe the compressor to stop. Alternatively, a solenoid valve is provided to shut off the differential pressure detector piping and prevent oil from flowing out.
差圧検出器に内部洩れがなければ、差圧検出器と配管部
分は、はぼ周囲温度に等しくなっているが、差圧検出器
に洩れが発生すると油を多量に含んだ高温の空気が流れ
るので、この温度の違いを検出し、洩れの有無を判定す
ることが出きる。If there is no internal leakage in the differential pressure detector, the temperature of the differential pressure detector and the piping will be approximately equal to the ambient temperature, but if a leak occurs in the differential pressure detector, high temperature air containing a large amount of oil will be released. Since the fluid flows, this difference in temperature can be detected and the presence or absence of a leak can be determined.
不発明の実施例を、第１図により説明する。油冷式スク
リュー圧４機は、空気を圧縮する過程で多量の油を注入
するため、注入された油を空気から分離するためのオイ
ルセパレータ１がアリ、下部は油だめに衾っていて、上
部にはオイルセパレータエレメント２が取付けられてい
る。オイルセパレータエレメント２は外周から多量の油
を含んだ空気が入り、これを内側に通過する間に油と空
気は分離され、オイルセパレータエＶ）ｔントの下部に
分離された油が之まる。A non-inventive embodiment will be explained with reference to FIG. The oil-cooled screw pressure 4 machine injects a large amount of oil during the process of compressing air, so there is an oil separator 1 to separate the injected oil from the air, and the bottom part is in an oil sump. An oil separator element 2 is attached to the upper part. A large amount of oil-containing air enters the oil separator element 2 from the outer periphery, and while passing through the air inside, the oil and air are separated, and the separated oil is placed in the lower part of the oil separator element.
オイルセパレータエレメント２は当初の圧力損失は少な
いが、長期間使用すると汚れがつき圧損が大きくなる。The oil separator element 2 initially has a small pressure loss, but when used for a long period of time, it becomes dirty and the pressure loss becomes large.
この圧力損失が一定値に達したときに、オイルセパレー
タエレメント２の交換を行うことを目的として、差圧検
出器８を設けているオイルセパレータエレメント２／）
−次側圧力はオイルセパレータ１から、二次側圧力は吐
出配管４７）上部からそれぞれ差圧噴出器８へ配管で接
続する。この配管５上にｍＬｆ検出器６と電磁弁７を設
け、差圧検出６８の内部洩れが生じたときの保護装置と
する。Oil separator element 2/) is provided with a differential pressure detector 8 for the purpose of replacing the oil separator element 2 when this pressure loss reaches a certain value.
- The downstream pressure is connected to the differential pressure injector 8 by piping from the oil separator 1 and the secondary pressure from the upper part of the discharge piping 47). A mLf detector 6 and a solenoid valve 7 are provided on this piping 5 to serve as a protection device when internal leakage occurs in the differential pressure detection 68.
差圧検出器が正常であれば、配ｆ５，８内は空気の流れ
がなく、はぼ周ｌｉ！ｉ温度になる。しかし差圧検出器
８に洩れが生じ油を含んだ高温の空気が流れ出すと配管
部７）温度が上昇するのでは度検出器６はこの温度を検
出し、４磁弁７を閉じオイルセパレータエレメントの一
次側から二次側へ油を多ｔＶＣ含ん九空気が流れること
を防止することができる。If the differential pressure detector is normal, there is no air flow in distribution f5 and f8, and the circumference li! The temperature reaches i. However, if the differential pressure detector 8 leaks and high temperature air containing oil flows out, the temperature of the piping section 7) will rise. It is possible to prevent air containing a large amount of oil from flowing from the primary side to the secondary side.
また、を度検出器６は、故障１ｇ号を出すことも出来る
。図中、９は圧縮機、１０は吸入フィルタ１１はオイル
クーラを示す。Further, the degree detector 6 can also output a failure number 1g. In the figure, reference numeral 9 indicates a compressor, and reference numeral 10 indicates a suction filter 11, an oil cooler.
不発明によれば、オイルセパレータエレメントの寿命を
判定する差圧検出器に内部洩れば生じ、−次側の油を多
量に含む空気が二次側へ流出すると、その不具会を検出
できる。According to the present invention, a malfunction can be detected if an internal leak occurs in the differential pressure detector that determines the lifespan of the oil separator element, and if air containing a large amount of oil on the negative side flows out to the secondary side.
従って、吐出空気中へ多量の油が混入することを防止で
きる。Therefore, it is possible to prevent a large amount of oil from being mixed into the discharged air.
また、油の消費が急激に進み油不足により吐出空気温度
が上昇し、圧４機が非常停止することを防止する効果が
ある。It also has the effect of preventing the pressure 4 machine from coming to an emergency stop due to rapid oil consumption and a rise in discharge air temperature due to oil shortage.
第１図は、本発明り一実施例の仝気圧縮機の油配管系統
図である。
１・・・オイルセパレータ ２・・・オイルセパレー
タエンメント ３・・・差圧検出器 傷・・・吐出
配管 ５・・・差圧検出器配管 ６・・・温度検出
器７・・・電磁弁 ８・・・差圧検出器配管 ９・
・・圧縮ｍ １０・・・吸入フィルタ １１・・
・オイルクー２゜FIG. 1 is an oil piping system diagram of an air compressor according to an embodiment of the present invention. 1... Oil separator 2... Oil separator element 3... Differential pressure detector Scratch... Discharge piping 5... Differential pressure detector piping 6... Temperature detector 7... Solenoid valve 8... Differential pressure detector piping 9.
...Compression m 10...Suction filter 11...
・Oil cooler 2゜
Claims (1)
の差圧検出器と、その配管および、差圧検出器の二次側
の温度検出器と、温度検出器により開閉される電磁弁を
設けたことを特徴とするオイルセパレータエレメントの
差圧検出装置。Features include a differential pressure detector for the oil separator element of an oil-fed screw compressor, a temperature detector for its piping, a secondary side of the differential pressure detector, and a solenoid valve that is opened and closed by the temperature detector. Differential pressure detection device for oil separator element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26492689A JPH03130596A (en) | 1989-10-13 | 1989-10-13 | Differential pressure detecting device for oil separator element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26492689A JPH03130596A (en) | 1989-10-13 | 1989-10-13 | Differential pressure detecting device for oil separator element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03130596A true JPH03130596A (en) | 1991-06-04 |
Family
ID=17410115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26492689A Pending JPH03130596A (en) | 1989-10-13 | 1989-10-13 | Differential pressure detecting device for oil separator element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03130596A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927010A (en) * | 2012-11-19 | 2013-02-13 | 南车株洲电力机车有限公司 | Screw compressor and control device and method of screw compressor |
| CN103644109A (en) * | 2013-12-27 | 2014-03-19 | 云南铝业股份有限公司 | Method for preventing lubricating oil of piston type ammonia compressor from being emulsified |
| US11112328B2 (en) * | 2019-04-29 | 2021-09-07 | Baker Hughes Oilfield Operations Llc | Temperature based leak detection for blowout preventers |
-
1989
- 1989-10-13 JP JP26492689A patent/JPH03130596A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927010A (en) * | 2012-11-19 | 2013-02-13 | 南车株洲电力机车有限公司 | Screw compressor and control device and method of screw compressor |
| CN103644109A (en) * | 2013-12-27 | 2014-03-19 | 云南铝业股份有限公司 | Method for preventing lubricating oil of piston type ammonia compressor from being emulsified |
| US11112328B2 (en) * | 2019-04-29 | 2021-09-07 | Baker Hughes Oilfield Operations Llc | Temperature based leak detection for blowout preventers |
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