JPH03272398A - Oil separator - Google Patents
Oil separatorInfo
- Publication number
- JPH03272398A JPH03272398A JP7151990A JP7151990A JPH03272398A JP H03272398 A JPH03272398 A JP H03272398A JP 7151990 A JP7151990 A JP 7151990A JP 7151990 A JP7151990 A JP 7151990A JP H03272398 A JPH03272398 A JP H03272398A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- disc body
- air
- housing
- passage
- 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
- 239000002245 particle Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral 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］
本発明はオイルセパレータに関し、簡単な構造で効率的
に圧縮空気中のオイル分離をなすオイルセパレータに関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an oil separator, and more particularly, to an oil separator that has a simple structure and efficiently separates oil from compressed air.
［従来の技術］
ベーンポンプ等をコンプレッサに使用した場合、ベーン
やロータ等の各部の摺動性を保つとともにポンプ各部の
液密性を確保するためオイルを供給しているが、これが
圧縮空気に混入して吐出されるため、圧縮空気供給ライ
ンにオイルセパレータを設けて混入オイルを分離回収し
ている。[Conventional technology] When a vane pump or the like is used in a compressor, oil is supplied to maintain the sliding properties of vanes, rotors, and other parts and to ensure fluid tightness of each part of the pump, but oil can be mixed into the compressed air. Therefore, an oil separator is installed in the compressed air supply line to separate and recover the mixed oil.
かかるオイルセパレータとしては、ラビリンス壁を設け
て空気流が蛇行する間にオイルを自重落下せしめ分離す
る構造のものが多用されている。As such oil separators, those having a structure in which a labyrinth wall is provided so that the oil falls under its own weight and is separated while the air flow is meandering are often used.
［発明が解決しようとする課題］
ところで、上記従来のオイルセパレータは、多数のラビ
リンス壁を形成する必要があって構造が複雑になるとと
もに、ここを通過する圧縮空気の流通抵抗が比較的大き
いなめ、ポンプ効率が低下せしめられ、また、オイル分
離効率がそれ程高くないために十分なオイル分離をなす
ためには複数連結して使用する必要がある等の問題があ
った。[Problems to be Solved by the Invention] By the way, the above-mentioned conventional oil separator requires the formation of a large number of labyrinth walls, which makes the structure complicated, and the flow resistance of the compressed air passing through the labyrinth walls is relatively large. , the pump efficiency is lowered, and since the oil separation efficiency is not so high, it is necessary to connect a plurality of them in order to achieve sufficient oil separation.
本発明はかかる課題を解決するもので、構造簡単で空気
流通抵抗も小さく、かつ効率的にオイルを分離すること
が可能なオイルセパレータを提供することを目的とする
。SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and an object of the present invention is to provide an oil separator that has a simple structure, has low air flow resistance, and is capable of efficiently separating oil.
［課題を解決するための手段］
本発明の詳細な説明すると、オイルセパレータは、回転
軸１に固定されて回転する円板体２を設け、該円板体２
を覆いこれとの間に空気流通間隙３ａを形成するハウジ
ング３１壁には上記円板体２の一方の板面中心部に向け
てオイル混入空気を供給する空気流入路３３を開口せし
めるとともに、上記円板体２の他方の板面中心部に対向
するハウジング３２壁には上記空気流通間隙３ａを経て
至った空気を流出せしめる空気流出路３４を開口せしめ
、かつ上記円板体２外周に対向するハウジング３１壁の
下部位置には、回転する上記円板体２の遠心力により上
記オイル混入空気より分離されて上記ハウジング３１壁
に飛着し、これに沿って落下したオイルを回収排除する
オイル排出路３５を開口せしめたものである。[Means for Solving the Problems] To explain the present invention in detail, an oil separator includes a disc body 2 fixed to a rotating shaft 1 and rotated, and the disc body 2
An air inlet passage 33 for supplying oil-containing air toward the center of one plate surface of the disk body 2 is opened in the wall of the housing 31 that covers the housing 31 and forms an air circulation gap 3a therebetween. An air outlet passage 34 is opened in the wall of the housing 32 facing the center of the other plate surface of the disc body 2 to allow the air that has passed through the air circulation gap 3a to flow out, and is opposite to the outer periphery of the disc body 2. At the lower part of the wall of the housing 31, there is an oil discharge for collecting and discharging oil that is separated from the oil-containing air by the centrifugal force of the rotating disc body 2, flies to the wall of the housing 31, and falls along this. The passage 35 is opened.
［作用］
上記構造のオイルセパレータにおいて、ポンプ等より吐
出されたオイル混入空気は空気流入路３３を経て、回転
する円板体２の一方の板面中心部に向けて供給される。[Function] In the oil separator having the above structure, oil-containing air discharged from a pump or the like is supplied toward the center of one plate surface of the rotating disc body 2 through the air inflow path 33.
空気流は円板体２の板面に沿い旋回流となってハウジン
グ３１．３２壁との間に形成された空気流通間隙３ａを
経て他方の板面に至り、空気流出路３４より流出する。The airflow becomes a swirling flow along the plate surface of the disc body 2, passes through the air circulation gap 3a formed between the walls of the housing 31 and 32, reaches the other plate surface, and flows out from the air outlet path 34.
この過程で、円板体２の上記一方の板面に供給され旋回
流となった空気に混入しているオイル粒は遠心力を受け
て径方向外方へ飛散し、空気より分離される。飛散分離
されたオイルは円板体２外周に対向するハウジング３１
壁に付着し、これに沿って落下してオイル排出路３５を
経て流出せしめられる。In this process, the oil particles mixed in the air supplied to the one plate surface of the disk body 2 and turned into a swirling flow are scattered outward in the radial direction under the influence of centrifugal force, and are separated from the air. The scattered and separated oil is transferred to the housing 31 facing the outer periphery of the disc body 2.
The oil adheres to the wall, falls along the wall, and is discharged through the oil discharge path 35.
このようにして、供給空気が円板体により強力に旋回せ
しめられる結果、空気中のオイルは遠心力により効率的
に分離される。また、空気流は滞留することなくスムー
ズに流れるからポンプ吐出効率が悪化することはなく、
さらに、ラビリンス壁等を形成する必要がないからオイ
ルセパレータの構造は簡素化される。In this way, the supplied air is strongly swirled by the disc body, and as a result, oil in the air is efficiently separated by centrifugal force. In addition, the airflow flows smoothly without stagnation, so the pump discharge efficiency does not deteriorate.
Furthermore, since there is no need to form a labyrinth wall or the like, the structure of the oil separator is simplified.
［第１実施例］
第１図は本発明に係るオイルセパレータを一体に内設し
たベーンポンプを示す。ポンプハウジング４内には中心
に回転軸１が配設され、該回転軸１は一端に設けたプー
リ１１を介して７略のエンジン出力で回転せしめられる
。上記回転軸１はポンプハウジング４の一端開口を閉鎖
するように設けた一対のセパレータハウジング３１．３
２を貫通している。[First Embodiment] FIG. 1 shows a vane pump integrally provided with an oil separator according to the present invention. A rotary shaft 1 is disposed at the center of the pump housing 4, and the rotary shaft 1 is rotated by an engine output of about 7 via a pulley 11 provided at one end. The rotating shaft 1 is connected to a pair of separator housings 31.3 provided so as to close one end opening of the pump housing 4.
It passes through 2.
上記ポンプハウジング４内には上記回転軸１に固定され
て口〜夕５が配設され、ロータ５外周に周方向等間隔で
多数形成された溝５１内にポンプハウジング４内周に向
けて突出当接するベー７６が配設されて気体を圧縮させ
る作用をする公知のベーンポンプを構成している。In the pump housing 4, a port 5 is fixed to the rotating shaft 1 and protrudes toward the inner periphery of the pump housing 4 within a plurality of grooves 51 formed at equal intervals in the circumferential direction on the outer periphery of the rotor 5. The abutting bay 76 is disposed to constitute a known vane pump that compresses gas.
セパレータハウジング３１には他方のセパレータハウジ
ング３２との対向面に上記回転軸１を中心とする凹所が
形成され、この凹所内に上記回転軸１に中心を固定して
円板体２が配設しである。A recess centered on the rotating shaft 1 is formed in the separator housing 31 on the surface facing the other separator housing 32, and a disc body 2 is disposed within this recess with its center fixed to the rotating shaft 1. It is.
円板体２は中心のボス部２１で上記回転軸１に固定され
、外周部には両面に羽根壁２２が形成しである。これら
の羽根壁２２は円板体２成形時に容易に一体成形するこ
とができ、羽根壁２２の頂面ば上記ハウジング３１．３
２の壁面に近接している。The disk body 2 is fixed to the rotating shaft 1 by a central boss portion 21, and blade walls 22 are formed on both sides of the outer periphery. These vane walls 22 can be easily integrally molded when forming the disc body 2, and the top surface of the vane walls 22 is connected to the housing 31.3.
It is close to the wall of 2.
上記羽根壁２２は、第２図に示す如く、円板体２の板面
外周側面部に外周から内周に向けて多数湾曲形成されて
全体として渦巻形をなしている。As shown in FIG. 2, the blade walls 22 are formed in multiple curves from the outer periphery toward the inner periphery on the outer periphery side of the plate surface of the disc body 2, forming a spiral shape as a whole.
円板体２の円周方向の外周端に対向するハウジング３１
の内周面は下端より時計方向へ漸次上記外周より離れる
面としてあって、次第に間隔が大きくなる空気流通間隙
３ａとなっている。上記ハウジング内周面が再び戻った
下端のハウジング３１壁にはオイル排出路３５が開口し
ている。A housing 31 facing the outer peripheral end of the disc body 2 in the circumferential direction
The inner circumferential surface of the inner circumferential surface is a surface that gradually moves away from the outer circumferential surface clockwise from the lower end, forming an air circulation gap 3a with a gradually increasing interval. An oil discharge passage 35 is opened in the wall of the housing 31 at the lower end where the inner circumferential surface of the housing returns again.
上記ベーンポンプより吐出される圧縮空気を導く空気流
入路３３が上記ポンプハウジング４内に形成され（図で
は概念的に二点鎖線で示す）、これはセパレータハウジ
ング３１に至って上記円板体２のボス部２１に対向する
回転軸１外周に開口している。一方、セパレータハウジ
ング３２には空気流出路３４が形成され、これは円板体
２のボス部付近に対向して開口している。An air inflow path 33 for guiding the compressed air discharged from the vane pump is formed in the pump housing 4 (conceptually indicated by a two-dot chain line in the figure), and this leads to the separator housing 31 and the boss of the disc body 2. It opens on the outer periphery of the rotating shaft 1 facing the portion 21. On the other hand, an air outflow path 34 is formed in the separator housing 32, and this air outflow path 34 opens opposite to the vicinity of the boss portion of the disc body 2.
かかる構造のオイルセパレータにおいて、回転軸１の回
転に伴ってベーンポンプよりオイルを含んだ圧縮空気が
吐出され、これは空気流入路３３を経て円板体２の中心
ボス部２１付近に供給される（第１図中の矢印）。円板
体２は第２図において時計方向へ回転しており、ボス部
２１付近に供給された圧縮空気は羽根壁２２にガイドさ
れてこれらの間を図中矢印で示す如く、内周より外周方
向へ流れて旋回流となる。空気流は円板体２の外周に至
ると空気流通間隙３ａを経て裏面側へ流れ、裏面に形成
した表面と同形状の羽根壁（７略）に沿って円板体２内
周のボス部２１に至って、空気流出路３４を経て外部機
器へ供給される。In the oil separator having such a structure, compressed air containing oil is discharged from the vane pump as the rotating shaft 1 rotates, and this is supplied to the vicinity of the central boss portion 21 of the disc body 2 through the air inflow path 33 ( (arrow in Figure 1). The disc body 2 is rotating clockwise in FIG. 2, and the compressed air supplied near the boss portion 21 is guided by the blade wall 22 and moves between them from the inner circumference to the outer circumference, as shown by the arrow in the figure. direction and becomes a swirling flow. When the airflow reaches the outer periphery of the disc body 2, it flows to the back side through the air circulation gap 3a, and flows along the vane wall (7 omitted) formed on the back face, which has the same shape as the front surface, to the boss portion on the inner periphery of the disc body 2. 21 and is supplied to external equipment via an air outlet path 34.
さて、上記空気流は上述の如く円板体２外周で方向を変
えるが、空気流に含まれたオイル粒は遠心力を受けて、
向きを変えることなく空気流より分離されハウジング３
１壁に至って付着する。付着したオイル粒はハウジング
３１壁に沿って落下し、オイル排出路３５に至ってこれ
より外部のオイルタンクに回収貯溜される。Now, as mentioned above, the air flow changes direction at the outer periphery of the disc body 2, but the oil particles contained in the air flow are subjected to centrifugal force,
Housing 3 separated from the air flow without changing direction
1. It adheres to the wall. The attached oil particles fall along the wall of the housing 31, reach the oil discharge path 35, and are collected and stored in an external oil tank.
このようにして、回転する円板体により空気流が旋回せ
しめられることにより、圧縮空気中に含まれるオイルは
より小さい粒径のものまで効率良く分離され、清浄な圧
縮空気を得ることができる。In this way, since the air flow is swirled by the rotating disc body, the oil contained in the compressed air is efficiently separated into smaller particle sizes, and clean compressed air can be obtained.
このオイルセパレータは円板体を設けるだけの簡単な構
造であり、上記実施例に示した如く、ポンプの回転軸に
固定してポンプと一体にコンパクトに設けることができ
る。また、空気流は大きな流通抵抗を受けることなくス
ムーズに流れるからポンプ吐出効率の低下が避けられる
。This oil separator has a simple structure consisting of only a disc body, and as shown in the above embodiment, it can be fixed to the rotating shaft of the pump and provided compactly and integrally with the pump. In addition, since the air flows smoothly without being subjected to large flow resistance, a decrease in pump discharge efficiency can be avoided.
「第２実施例］
第３図において、回転する円板体２を覆うハウジング３
には円板体２の一方の板面中心部に対向せしめて空気流
入路３３を開口形成するとともに、他方の板面に対向せ
しめて空気流出路３４を開口形成しである。円板体２の
外周部とハウジング３壁の間には空気流通間隙３ａが形
成されるとともに、上記ハウジング３壁には空気流通間
隙３ａに突出して円板体２の外周両面近くに至る羽根壁
３６（第４図）が周方向の適宜位置に円板体径方向へ形
成しである。この羽根壁３６は円板体２の回転方向（第
４図の白矢印）へ傾斜せしめてあり、回転する円板体２
に沿って旋回流となった空気流は上記羽根壁３６により
、図中黒矢印の如く板面に接近するように絞られ、この
結果、空気流に混在するオイル粒の粒径が拡大するとと
もに、旋回流が成長せしめられてオイル分離が効率的に
なされる。“Second Embodiment” In FIG. 3, a housing 3 that covers a rotating disc body 2
An air inflow passage 33 is formed as an opening facing the center of one plate surface of the disc body 2, and an air outflow passage 34 is formed as an opening facing the other plate surface. An air circulation gap 3a is formed between the outer periphery of the disk body 2 and the wall of the housing 3, and the housing 3 wall has blade walls that protrude into the air circulation gap 3a and reach near both sides of the outer circumference of the disk body 2. 36 (FIG. 4) are formed at appropriate positions in the circumferential direction in the radial direction of the disc body. This blade wall 36 is inclined in the direction of rotation of the disc body 2 (white arrow in FIG. 4), and the rotating disc body 2
The airflow, which has become a swirling flow along , a swirling flow is grown and oil separation is performed efficiently.
かかる精造によっても上記第１実施例と同様の効果があ
る。Such refinement also provides the same effect as the first embodiment.
なお、円板体ないしハウジング壁に設ける羽根壁は円板
体の一面側のみに設けても良く、また、羽根壁を全く形
成しない場合でも従来技術に比して本発明の顕著な効果
は失われない。Note that the blade wall provided on the disk body or housing wall may be provided only on one side of the disk body, and even if no blade wall is formed at all, the remarkable effects of the present invention will be lost compared to the prior art. It won't happen.
［発明の効果］
以上の如く、本発明のオイルセパレータは、簡単な構造
で効率的なオイル分離ができるとともに、空気流の流通
を妨げないからポンプの吐出効率も向上せしめることが
できる。[Effects of the Invention] As described above, the oil separator of the present invention has a simple structure and can efficiently separate oil, and also improves the pump discharge efficiency because it does not hinder the air flow.
第１図および第２図は本発明の第１実施例を示し、第１
図は本発明のオイルセパレータを内設したベーンポンプ
の全体縦断面図、第２図は第１図の■−■線に沿う横断
面図、第３図および第４図は本発明の第２実施例を示し
、第３図はオイルセパレータの断面図、第４図は第３図
のＩＶ −ＩＶ線に沿う要部断面図である。
１・・・回転軸
２・・・円板体
３．３１．３２・・・ハウジング
３ａ・・・空気流通間隙
３３・・・空気流入路
３４・・・空気流出路
３５・・・オイル排出路
第１図
第２図
５1 and 2 show a first embodiment of the present invention;
The figure is an overall vertical cross-sectional view of a vane pump incorporating an oil separator of the present invention, Figure 2 is a cross-sectional view taken along the line ■-■ of Figure 1, and Figures 3 and 4 are a second embodiment of the present invention. As an example, FIG. 3 is a sectional view of an oil separator, and FIG. 4 is a sectional view of a main part taken along line IV-IV in FIG. 3. 1...Rotating shaft 2...Disc body 3.31.32...Housing 3a...Air circulation gap 33...Air inflow path 34...Air outflow path 35...Oil discharge path Figure 1 Figure 2 Figure 5
Claims (1)
覆いこれとの間に空気流通間隙を形成するハウジング壁
には上記円板体の一方の板面中心部に向けてオイル混入
空気を供給する空気流入路を開口せしめるとともに、上
記円板体の他方の板面中心部に対向するハウジング壁に
は上記空気流通間隙を経て至った空気を流出せしめる空
気流出路を開口せしめ、かつ上記円板体外周に対向する
ハウジング壁の下部位置には、回転する上記円板体の遠
心力により上記オイル混入空気より分離されて上記ハウ
ジング壁に飛着し、これに沿つて落下したオイルを回収
排除するオイル排出路を開口せしめたことを特徴とする
オイルセパレータ。A disc body that is fixed to a rotating shaft and rotates is provided, and a housing wall that covers the disc body and forms an air circulation gap therebetween is provided with oil directed toward the center of one plate surface of the disc body. an air inflow passage for supplying mixed air is opened, and an air outflow passage is opened in a housing wall facing the center of the other plate surface of the disc body for allowing the air that has passed through the air circulation gap to flow out; At the lower part of the housing wall facing the outer periphery of the disc body, there is oil that is separated from the oil-containing air by the centrifugal force of the rotating disc body, flies to the housing wall, and falls along this. An oil separator characterized by having an open oil discharge passage that collects and eliminates oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151990A JPH03272398A (en) | 1990-03-20 | 1990-03-20 | Oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7151990A JPH03272398A (en) | 1990-03-20 | 1990-03-20 | Oil separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03272398A true JPH03272398A (en) | 1991-12-04 |
Family
ID=13463050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7151990A Pending JPH03272398A (en) | 1990-03-20 | 1990-03-20 | Oil separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03272398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065723A (en) * | 2019-06-10 | 2020-12-11 | 上海海立电器有限公司 | Spiral oil separator and rotor type compressor comprising same |
| CN113339265A (en) * | 2021-07-09 | 2021-09-03 | 珠海格力电器股份有限公司 | Oil blocking structure, compressor and air conditioner with same |
-
1990
- 1990-03-20 JP JP7151990A patent/JPH03272398A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065723A (en) * | 2019-06-10 | 2020-12-11 | 上海海立电器有限公司 | Spiral oil separator and rotor type compressor comprising same |
| CN113339265A (en) * | 2021-07-09 | 2021-09-03 | 珠海格力电器股份有限公司 | Oil blocking structure, compressor and air conditioner with same |
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