JPH0315694A - Screw compressor - Google Patents
Screw compressorInfo
- Publication number
- JPH0315694A JPH0315694A JP14814189A JP14814189A JPH0315694A JP H0315694 A JPH0315694 A JP H0315694A JP 14814189 A JP14814189 A JP 14814189A JP 14814189 A JP14814189 A JP 14814189A JP H0315694 A JPH0315694 A JP H0315694A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- separation chamber
- chamber
- oil separation
- wall surface
- 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
- 238000000926 separation method Methods 0.000 claims abstract description 47
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 97
- 239000003595 mist Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained 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〕
本発明はスクリュー圧縮装置に係り、特にスクリュー圧
縮機からの吐出ガス中に含まれる油分を効率よく分離で
きるようにしたスクリュー圧縮装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a screw compression device, and particularly to a screw compression device that can efficiently separate oil contained in gas discharged from a screw compressor.
一般に、油分離チャンバ内に油冷式のスクリュー圧縮機
の吐出口を開口させたスクリュー圧縮装置は知られてい
る。この種のものでは、互いに噛合う雌雄一対のスクリ
ューロータの歯溝間に、潤滑油を供給するので、油分を
含んだ吐出ガスが排出される。よって、この吐出ガスは
一旦油分離チャンバ内に吐出され、ここで油分を分離し
たのち、該油分離チャンバから排出される。2. Description of the Related Art Generally, a screw compression device in which a discharge port of an oil-cooled screw compressor is opened in an oil separation chamber is known. In this type of rotor, lubricating oil is supplied between the tooth grooves of a pair of male and female screw rotors that mesh with each other, so that discharged gas containing oil is discharged. Therefore, this discharged gas is once discharged into the oil separation chamber, where the oil is separated, and then discharged from the oil separation chamber.
ここでの油分離効率を向上させるために、従来、スクリ
ュー圧縮機の吐出口の前方に衝突板を配設したものが提
案されている。この衝突板に吐出ガスを一旦衝突させて
油分離し、油分は該油分離チャンバの下方領域の油溜ま
りに滞留させて、ガスだけを排出方向に吐出するように
している。この場合、更に排出方向前方にはデミスタを
配置しておき、このデミスタを通して再び細かく油分離
して外部に排出するようにしている。In order to improve the oil separation efficiency here, a screw compressor in which a collision plate is disposed in front of the discharge port has been proposed. The discharged gas is once collided with this collision plate to separate the oil, and the oil is retained in an oil reservoir in the lower region of the oil separation chamber, so that only the gas is discharged in the discharge direction. In this case, a demister is placed further forward in the discharge direction, and the oil is finely separated again through this demister and then discharged to the outside.
しかしながら、衝突板を設けると、その分だけ部品点数
が増えるし、衝突板に吐出ガスを衝突させただけでは、
分離効果を充分に高めることは難しく、ここでかなりの
量の油を分離しておかないと、その下流のデミスタに負
担がかかり、油分離チャンバから排出されるガス中に油
分が残留してしまうという恐れがある。However, if a collision plate is provided, the number of parts increases accordingly, and simply colliding the discharged gas with the collision plate will not work.
It is difficult to sufficiently increase the separation effect, and if a considerable amount of oil is not separated at this point, the downstream demister will be burdened, and oil will remain in the gas discharged from the oil separation chamber. There is a fear that.
また、これでは衝突したのちのガスの流れが、油分離チ
ャンバの下方領域に滞留する油の油面に直接到達するの
で、この油面を波立たせ、油分が霧状になって浮上し、
反って分離効率を低下させるでしまうという問題がある
。In addition, in this case, the gas flow after the collision directly reaches the oil surface of the oil stagnant in the lower area of the oil separation chamber, which causes the oil surface to ripple, causing the oil to float to the surface in the form of mist.
There is a problem in that it warps and reduces separation efficiency.
そこで、本発明の目的は、上述した従来の技術が有する
問題点を解消し、油分の分離効果を充分に高め、油分離
チャンバから排出されるガス中に油分が残留することの
ないようにしたスクリュー圧縮装置を提供することにあ
る。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technology, sufficiently enhance the oil separation effect, and prevent oil from remaining in the gas discharged from the oil separation chamber. An object of the present invention is to provide a screw compression device.
上記目的を達成するために、本発明は、油分離チャンバ
内に油冷式スクリュー圧縮機の吐出口を開口させてなる
スクリュー圧縮装置において、前記油分離チャンバ内に
該油分離チャンバの内周壁面に嵌り合う大きさのデミス
タを装着するとともに、このデミスタに到達する前の吐
出ガスに衝突力を付与して該吐出ガスから予めかなりの
油分を除去できるように、前記スクリュー圧縮機の吐出
口を前記油分離チャンバの内周壁面に向けて開口させた
ことを特徴とするものであり、
また、他の発明は、上述の油分離チャンバ内の油溜まり
の油面の上方に仕切板を設けたことを特徴とするもので
ある。In order to achieve the above object, the present invention provides a screw compression device in which a discharge port of an oil-cooled screw compressor is opened in an oil separation chamber. The discharge port of the screw compressor is equipped with a demister of a size that fits into the demister, and the discharge port of the screw compressor is installed so that a considerable amount of oil can be removed from the discharge gas in advance by applying a collision force to the discharge gas before it reaches the demister. The invention is characterized in that the oil separation chamber is opened toward the inner circumferential wall surface, and another invention is characterized in that a partition plate is provided above the oil surface of the oil pool in the oil separation chamber. It is characterized by this.
本発明によれば、吐出時に吐出ガスが油分離チャンバの
内周壁面．に衝突するので、デミスタに到達する前に、
予めかなりの量の油分が除去され、デミスタにかかる負
担が少なくなり、このデミスタでは細かい霧状の油分を
捕捉するだけでよく、排出されるガス中の含油量を極め
て少なくすることができる。また、デミスタは油分離チ
ャンバの内周壁面一杯に嵌り合う大きさに形成されてい
るので、油分の捕捉率は極めて大きくなり、効率よく油
分離を行うことができる。According to the present invention, when discharged, the discharged gas reaches the inner peripheral wall surface of the oil separation chamber. , so before it reaches the demister,
A considerable amount of oil is removed in advance, reducing the load on the demister, which only needs to capture a fine mist of oil, and the oil content in the discharged gas can be extremely reduced. Moreover, since the demister is formed in a size that fits completely into the inner circumferential wall surface of the oil separation chamber, the oil capture rate is extremely high, and oil separation can be performed efficiently.
また、他の発明によれば、油分離チャンバ内の油溜まり
の油面の上方に、仕切板を設けているので、周方向に廻
り込む吐出ガスが油溜まりの油面に直接到達することが
なく、油面が波立つことが少なく、油溜まりから油分が
霧状になって浮上するようなことが少なく、結果的に油
の分離効率を向上させることができる。Further, according to another invention, a partition plate is provided above the oil level of the oil pool in the oil separation chamber, so that the discharged gas circulating in the circumferential direction does not directly reach the oil level of the oil pool. The oil surface is less likely to ripple, and the oil is less likely to float up in the form of mist from the oil pool, resulting in improved oil separation efficiency.
以下、本発明によるスクリュー圧縮装置の一実施例を添
付図面を参照して説明する。Hereinafter, one embodiment of a screw compression device according to the present invention will be described with reference to the accompanying drawings.
第１図において、符号２はケーシングを示し、このケー
シング２内には雌雄一対のスクリューロータ３が軸受５
，６を介して回転自在に収納されている。このスクリュ
ーロータ３の吐出側には軸方向に摺動して、吐出容量を
調整するスライド弁９が配設され、このスライド弁９は
ロッド１０で連結されたピストン１１を介して駆動され
るようになっている〇
このピストン１１は上記ケーシング２に固着された吐出
ケーシング１３内に収容され、この吐出ケーシング１３
の外側には、それを囲うように油分離チャンバ１５が配
設されている。この油分離チャンバｌ５はケーシング２
のフランジ１６に対して強固に固着されており、油分離
チャンバ１５内には該油分離チャンバ１５の内周壁面に
嵌り合う大きさの大形のデミスタ１７が装着されている
。In FIG. 1, reference numeral 2 indicates a casing, and within this casing 2, a pair of male and female screw rotors 3 are mounted with bearings 5.
, 6, and is rotatably housed. A slide valve 9 is provided on the discharge side of the screw rotor 3 to adjust the discharge capacity by sliding in the axial direction, and this slide valve 9 is driven via a piston 11 connected by a rod 10. This piston 11 is housed in a discharge casing 13 fixed to the casing 2, and this piston 11 is
An oil separation chamber 15 is arranged outside the oil separation chamber 15 so as to surround it. This oil separation chamber l5 is located in the casing 2
A large demister 17 is mounted inside the oil separation chamber 15 and is large enough to fit on the inner peripheral wall surface of the oil separation chamber 15.
吐出ケーシング１３には吐出口ｌ８が形成されており、
この吐出口１８は、第２図に示すように、油分離チャン
バ１５の内周壁面１５ａに向けて開口されている。これ
によれば、ガスは吐出時に該内周壁面１５ａに衝突する
ので、ここで、かなりの量の油分は除去されることにな
り、その後、ガスは周方向に廻りながら排出方向に流れ
るようになっている。A discharge port l8 is formed in the discharge casing 13,
This discharge port 18 is opened toward the inner circumferential wall surface 15a of the oil separation chamber 15, as shown in FIG. According to this, since the gas collides with the inner circumferential wall surface 15a at the time of discharge, a considerable amount of oil is removed here, and after that, the gas flows in the discharge direction while rotating in the circumferential direction. It has become.
次に、本実施例の作用を説明する。Next, the operation of this embodiment will be explained.
スクリューロータ３の外部軸端には電動機（図示せず）
が連結され、該スクリューロータ３が駆動されると、こ
のスクリュー圧縮機は、吸込口２１を通してガスを吸入
し、これを圧縮し、このガスを吐出ケーシング１３の吐
出口１８より吐出する。これら圧縮過程においては、ス
クリューロータ３の歯溝間に油が供給されるので、吐出
ガス中には油分が含まれる。An electric motor (not shown) is installed at the external shaft end of the screw rotor 3.
When the screw rotor 3 is connected and the screw rotor 3 is driven, the screw compressor sucks gas through the suction port 21, compresses it, and discharges this gas from the discharge port 18 of the discharge casing 13. During these compression processes, oil is supplied between the tooth spaces of the screw rotor 3, so the discharged gas contains oil.
しかし、吐出ガスは上述したように吐出時に油分離チャ
ンバ１５の内周壁面１５ａに衝突するので、ここでかな
りの量の油分は除去され、油分は油分離チャンバ１５の
油溜まり２２に貯留される。However, as described above, since the discharged gas collides with the inner peripheral wall surface 15a of the oil separation chamber 15 during discharge, a considerable amount of oil is removed here, and the oil is stored in the oil reservoir 22 of the oil separation chamber 15. .
その後、吐出ガスは周方向に廻りながら排出方向に流れ
、大形のデミスタ１７を通して油分離チャンバ１５の吐
出開口２３より排出される。Thereafter, the discharge gas flows in the discharge direction while rotating in the circumferential direction, and is discharged from the discharge opening 23 of the oil separation chamber 15 through the large demister 17.
このように、本実施例によれば、吐出ガスがデミスタｌ
７に到達する前に、予めかなりの量の油分を除去してお
くので、デミスタ１７にかかる負担は少なくなり、ここ
では細かい霧状の油分を捕捉するだけでよく、排出され
るガス中の含油量を極めて少なくすることができる。ま
た、デミスタ１７は油分離チャンバ１５の内周壁面一杯
に嵌り合う大きさに形威されているので、油分の捕捉率
は極めて大きくなり、効率よく油分離を行うことができ
る。In this way, according to this embodiment, the discharged gas flows through the demister l.
Since a considerable amount of oil is removed in advance before reaching 7, the load on the demister 17 is reduced, and here it only needs to capture a fine mist of oil, and the oil-containing oil in the discharged gas is reduced. The amount can be made extremely small. Furthermore, since the demister 17 is sized to fit completely into the inner circumferential wall surface of the oil separation chamber 15, the oil capture rate is extremely high, and oil separation can be performed efficiently.
他の実施例としては、図示のように、油分離チャンバ１
５内の油溜まり２２の油面の上方に、仕切板２５．２５
を設けておき、周方向に廻り込む吐出ガスが油溜まり２
２の油面に直接到達しないようにしてもよい。このよう
にすれば油面が波立つことはなく、油溜まり２２から油
分が霧状になって浮上するようなことはなく、結果的に
油の分離効率を向上させることができる。In another embodiment, an oil separation chamber 1 may be used as shown in the figure.
A partition plate 25.25 is placed above the oil level of the oil reservoir 22 in 5.
is provided, and the discharge gas that circulates in the circumferential direction flows into the oil pool 2.
It may be arranged so that the oil does not directly reach the oil level in step 2. In this way, the oil surface will not ripple, and the oil will not float up in the form of mist from the oil reservoir 22, resulting in improved oil separation efficiency.
以上の説明から明らかなように、本発明によれば、油分
離チャンバ内に該油分離チャンバの内周壁面に嵌り合う
大きさのデミスタを装着するとともに、このデミスタに
到達する前の吐出ガスに衝突力を付与して該吐出ガスか
ら予めかなりの油分を除去できるように、前記スクリュ
ー圧縮機の吐出口を前記油分離チャンバの内周壁面に向
けて開口させているから、吐出ガスは吐出時に壁面に衝
突し、ここでかなりの量の油分が除去され、また、デミ
スタを大形にしているから、ここでは細かい油分が充分
に捕捉され、油の分離効果を充分に高めることができ、
油分離チャンバから排出されるガス中の含油量を極めて
少なくすることができる。As is clear from the above description, according to the present invention, a demister of a size that fits into the inner circumferential wall of the oil separation chamber is installed in the oil separation chamber, and the discharged gas before reaching the demister is The discharge port of the screw compressor is opened toward the inner circumferential wall surface of the oil separation chamber so that a considerable amount of oil can be removed from the discharged gas in advance by applying a collision force. It collides with the wall surface, where a considerable amount of oil is removed. Also, since the demister is large, fine oil is sufficiently captured here, and the oil separation effect can be sufficiently enhanced.
The oil content in the gas discharged from the oil separation chamber can be extremely reduced.
また、他の発明によれば、油分離チャンバ内の油溜まり
の油面の上方に仕切板を設けたから、吐出ガスが油溜ま
りの油面に直接到達しないので、油面が波立つことはな
く、油溜まりから油分が霧状になって浮上するようなこ
とはなく、油の分離効率を一層向上させることができる
。According to another invention, since a partition plate is provided above the oil level of the oil pool in the oil separation chamber, the discharged gas does not directly reach the oil level of the oil pool, so the oil level does not ripple. This prevents the oil from floating up in the form of mist from the oil pool, making it possible to further improve the oil separation efficiency.
第１図は本発明によるスクリュー圧縮装置の一実施例を
示す縦断面図、第２図は同じく吐出ケーシングの部分を
示す横断面図である。
３・・・スクリューロータ、９・・・スライド弁、１１
・・・ピストン、■３・・・吐出ケーシング、１５・・
・油分離チャンバ、１７・・・デミスタ、１８・・・吐
出口、２２・・・油溜まり、２５・・・仕切板。
第
ｌ
図
２２
第
２
図FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a screw compression device according to the present invention, and FIG. 2 is a cross-sectional view showing a portion of the discharge casing. 3...Screw rotor, 9...Slide valve, 11
...Piston, ■3...Discharge casing, 15...
- Oil separation chamber, 17...Demister, 18...Discharge port, 22...Oil reservoir, 25...Partition plate. Figure l Figure 22 Figure 2
Claims (1)
口を開口させてなるスクリュー圧縮装置において、前記
油分離チャンバ内に該油分離チャンバの内周壁面に嵌り
合う大きさのデミスタを装着するとともに、このデミス
タに到達する前の吐出ガスに衝突力を付与して該吐出ガ
スから予めかなりの油分を除去できるように、前記スク
リュー圧縮機の吐出口を前記油分離チャンバの内周壁面
に向けて開口させたことを特徴とするスクリュー圧縮装
置。 ２、前記油分離チャンバ内の油溜まりの油面の上方に仕
切板を設けたことを特徴とする請求項１に記載のスクリ
ュー圧縮装置。[Scope of Claims] 1. In a screw compression device in which a discharge port of an oil-cooled screw compressor is opened in an oil separation chamber, there is provided a large screw compressor in the oil separation chamber that fits into the inner peripheral wall surface of the oil separation chamber. At the same time, the discharge port of the screw compressor is connected to the oil separation chamber so that a considerable amount of oil can be removed from the discharge gas in advance by applying a collision force to the discharge gas before it reaches the demister. A screw compression device characterized by having an opening toward the inner circumferential wall surface of the screw compression device. 2. The screw compression device according to claim 1, further comprising a partition plate provided above the oil level of the oil reservoir in the oil separation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14814189A JPH0315694A (en) | 1989-06-09 | 1989-06-09 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14814189A JPH0315694A (en) | 1989-06-09 | 1989-06-09 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0315694A true JPH0315694A (en) | 1991-01-24 |
Family
ID=15446189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14814189A Pending JPH0315694A (en) | 1989-06-09 | 1989-06-09 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0315694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170581A (en) * | 1995-12-19 | 1997-06-30 | Daikin Ind Ltd | Compressor |
-
1989
- 1989-06-09 JP JP14814189A patent/JPH0315694A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09170581A (en) * | 1995-12-19 | 1997-06-30 | Daikin Ind Ltd | Compressor |
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