JPH05312438A - Centrifugal oil separator - Google Patents

Centrifugal oil separator

Info

Publication number
JPH05312438A
JPH05312438A JP14929092A JP14929092A JPH05312438A JP H05312438 A JPH05312438 A JP H05312438A JP 14929092 A JP14929092 A JP 14929092A JP 14929092 A JP14929092 A JP 14929092A JP H05312438 A JPH05312438 A JP H05312438A
Authority
JP
Japan
Prior art keywords
container body
pipe
inlet
oil
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.)
Granted
Application number
JP14929092A
Other languages
Japanese (ja)
Other versions
JP2830615B2 (en
Inventor
Nobuhiro Nakamura
信弘 中村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of JPH05312438A publication Critical patent/JPH05312438A/en
Application granted granted Critical
Publication of JP2830615B2 publication Critical patent/JP2830615B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/02Centrifugal separation of gas, liquid or oil

Abstract

PURPOSE:To improve oil separation efficiency. CONSTITUTION:An inlet pipe 5A is of a double pipe structure composed of an inside pipe 7 and an outside pipe 7. The inside pipe 6A is located at its inlet portion 6a substantially at the center of the outside pipe 7 and contacts with at its outlet portion 6b with the outside pipe 7, displaced toward the center of a container body 2. Hereby, an annular oil film flows through an annular passage 8A located between the inside pipe 6A and the outside pipe 7, and flows into the container body 2 in the direction of a wall surface of the container body 2. Hereby, there is prevented internal disturbance which might lower the separation efficiency owing to the annular oil film, and the annular oil film descends along the wall surface.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、主として圧縮機から吐
出された気相冷媒中に含まれる潤滑油を遠心分離せしめ
る遠心分離式油分離器に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a centrifugal oil separator for centrifugally separating lubricating oil contained in a gas-phase refrigerant discharged from a compressor.

【0002】[0002]

【従来の技術】例えば特公昭47−2949号公報に記
載されるように、圧縮機から吐出された気相冷媒中に含
まれる潤滑油を遠心分離せしめる遠心分離式油分離器は
知られている。
2. Description of the Related Art As disclosed in, for example, Japanese Patent Publication No. 47-2949, there is known a centrifugal oil separator for centrifugally separating lubricating oil contained in a gas-phase refrigerant discharged from a compressor. .

【0003】そのようなものは、図21に示すように、
容器本体(a)の上部に出口管(b)が、下部に油戻し
管(c)がそれぞれ配設され、容器本体(a)の上部の
略接線方向に入口管(d)が接続されている。そして、
容器本体(a)内で気相冷媒と油とを高速で回転させる
ことによって、気相冷媒に比べて質量の大きな油を、図
22の矢符に示すように、遠心力によって容器本体
(a)の内壁面に押付けて分離し、分離した油が重力に
より壁面を伝わって容器本体(a)の下部に溜まり、油
戻し管(c)を通じて、圧力差を利用して吸入側に戻る
ようにしている。
Such a device is shown in FIG.
An outlet pipe (b) is provided on the upper part of the container body (a), an oil return pipe (c) is provided on the lower part, and an inlet pipe (d) is connected to the upper part of the container body (a) in a substantially tangential direction. There is. And
By rotating the gas-phase refrigerant and the oil at high speed in the container body (a), oil having a larger mass than that of the gas-phase refrigerant can be removed by centrifugal force as shown by arrows in FIG. ) Is pressed against the inner wall surface to separate, and the separated oil travels along the wall surface due to gravity and collects in the lower part of the container body (a), and returns to the suction side through the oil return pipe (c) using the pressure difference. ing.

【0004】[0004]

【発明が解決しようとする課題】このようなものでは、
図23に詳細を示すように、入口管(d)の壁面に沿っ
て環状油膜(e)が、該環状油膜(e)の内部を冷媒ガ
スとミスト状油との混合物(f)がそれぞれ流れること
となる。
DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
As shown in detail in FIG. 23, an annular oil film (e) flows along the wall surface of the inlet pipe (d), and a mixture (f) of refrigerant gas and mist-like oil flows inside the annular oil film (e). It will be.

【0005】しかしながら、それらが入口管(d)を通
じて容器本体(a)内に流入する際、入口管(d)が容
器本体(a)の接線方向に一致するように接続されてい
るので、容器本体(a)の壁面側の外接触部分S1 で
は、環状油膜(e)が壁面に沿って流れるが、内接触部
分S2 付近では流入方向が明確に定まらず、流れに乱れ
を生じ、結果として油の分離を困難にする原因となって
いた。
However, when they flow into the container body (a) through the inlet pipe (d), the inlet pipe (d) is connected so as to match the tangential direction of the container body (a), so that the container In the outer contact portion S1 on the wall surface side of the main body (a), the annular oil film (e) flows along the wall surface, but in the vicinity of the inner contact portion S2, the inflow direction is not clearly defined, and turbulence occurs in the flow, resulting in oil flow. Had become a cause of difficult separation.

【0006】本発明はかかる点に鑑みてなされたもの
で、油分離効率を高めた遠心分離式油分離器を提供する
ことを目的とするものである。
The present invention has been made in view of the above points, and an object of the present invention is to provide a centrifugal oil separator having improved oil separation efficiency.

【0007】[0007]

【課題を解決するための手段】本発明は、容器本体
(2)の上部に出口管(3)が、下部に油戻し管(4)
がそれぞれ配設され、容器本体(2)の上部の略接線方
向に入口管(5A),(5B)が接続され、容器本体
(2)内で気相冷媒と油とを高速で回転させることによ
って、遠心力で容器本体(2)の内壁面に押付けて油を
分離する遠心分離式油分離器(1A)を前提とする。
According to the present invention, an outlet pipe (3) is provided in an upper portion of a container body (2) and an oil return pipe (4) is provided in a lower portion thereof.
And the inlet pipes (5A) and (5B) are connected to each other in a substantially tangential direction on the upper part of the container body (2) to rotate the vapor phase refrigerant and the oil in the container body (2) at high speed. It is premised on the centrifugal oil separator (1A) that separates oil by pressing against the inner wall surface of the container body (2) by means of centrifugal force.

【0008】請求項1の発明は、上記入口管(5A)
は、内側管(6A)と外側管(7)とからなる二重管構
造に形成されており、内側管(6A)の入口部分におい
ては外側管(7)の略中心付近に位置し、容器本体
(2)との接続部分においては容器本体(2)の中心寄
りに偏位して外側管(7)に接している構成とする。
According to the invention of claim 1, the inlet pipe (5A) is provided.
Is formed in a double pipe structure composed of an inner pipe (6A) and an outer pipe (7), and is located near the center of the outer pipe (7) at the inlet portion of the inner pipe (6A). At the connecting portion with the main body (2), the container main body (2) is offset toward the center and is in contact with the outer pipe (7).

【0009】請求項2の発明は、請求項1の内側管(6
A)に代えて、入口部分(6c)においては外側管
(7)の略中心付近に位置する断面円形状で、容器本体
(2)と接続される出口部分(6d)付近においては外
側管(7)と略同じ直径となりかつ容器本体(2)の壁
面に近い側の一部が欠如している断面欠円形状である内
側管(6B)が用いられている入口管(5B)を有す
る。
The invention of claim 2 provides the inner pipe (6) of claim 1.
Instead of A), the inlet portion (6c) has a circular cross-section located near the center of the outer pipe (7), and the outer pipe (6d) connected to the container body (2) near the outer pipe (7). 7) has an inlet pipe (5B) having an inner pipe (6B) having a diameter substantially the same as that of the container main body (2) and a part of the side near the wall surface of the container main body (2) is missing.

【0010】請求項3の発明は、請求項1の二重管構造
の入口管(5A)に代えて、入口部分(5a)では断面
略円形状で、そこから出口部位に向かって徐々に断面楕
円形状に変化し、出口部分(5b)では偏平な断面楕円
形状となっており、その長半径方向が、容器本体(2)
の中心軸と平行である入口管(5C)が用いられてい
る。
According to the invention of claim 3, in place of the inlet pipe (5A) of the double pipe structure of claim 1, the inlet portion (5a) is substantially circular in cross section, and gradually crosses from there to the outlet portion. It changes to an elliptical shape, and the outlet portion (5b) has a flat elliptical cross section, and the major axis direction is the main body (2).
An inlet tube (5C) is used that is parallel to the central axis of the.

【0011】請求項4の発明は、入口管(5C)は、断
面積が略一定である。
According to the invention of claim 4, the inlet pipe (5C) has a substantially constant cross-sectional area.

【0012】請求項5の発明は、容器本体(2)は、内
壁面に撥油性の弗素樹脂コ−ティング層(11)が形成
されている。
According to the fifth aspect of the invention, the container body (2) has an oil repellent fluororesin coating layer (11) formed on the inner wall surface.

【0013】請求項6の発明は、出口管(3A)は容器
本体(2)内に突出する突出部分(3a)を有し、該突
出部分(3a)に、容器本体(2)の内壁面(2a)と
間隔を存して、入口管(5A)〜(5D)から吹き出す
流れに対して略垂直となるようにメッシュ部材(15)
が設けられている。
According to the invention of claim 6, the outlet pipe (3A) has a projecting portion (3a) projecting into the container body (2), and the projecting portion (3a) has an inner wall surface of the container body (2). The mesh member (15) is spaced apart from (2a) and is substantially perpendicular to the flow discharged from the inlet pipes (5A) to (5D).
Is provided.

【0014】[0014]

【作用】請求項1の発明によれば、入口管(5A)の内
側管(6A)は入口部分においては外側管(7)の略中
心に位置し、容器本体(2)との接続部分において容器
本体(2)の中心寄りに偏位して外側管(7)に接する
ので、内側管(6)と外側管(7)との接触部位は内接
触部分S2 の位置になり、その結果環状油膜は油分離器
容器(1)の壁面方向(外接触部分S1 側)に導かれる
一方、冷媒ガスとミスト状油との混合物は内接触部分S
2 側に導かれ、環状油膜は容器本体(2)の壁面を沿っ
て下降する。
According to the invention of claim 1, the inner pipe (6A) of the inlet pipe (5A) is located substantially at the center of the outer pipe (7) at the inlet portion, and at the connecting portion with the container body (2). Since it contacts the outer pipe (7) while being displaced toward the center of the container body (2), the contact portion between the inner pipe (6) and the outer pipe (7) becomes the position of the inner contact portion S2, resulting in an annular shape. The oil film is guided in the wall surface direction of the oil separator container (1) (outer contact portion S1 side), while the mixture of the refrigerant gas and the mist-like oil is in contact with the inner contact portion S1.
Guided to the 2 side, the annular oil film descends along the wall surface of the container body (2).

【0015】請求項2の発明によれば、入口管(5B)
の内側管(6B)は、容器本体(2)との接続部付近
で、容器本体(2)の中心軸に近い部分が切除されてい
るので、環状油膜を全て容器本体(2)の壁面側に、そ
して冷媒ガスとミスト状の油は容器本体(2)の軸中心
方向に導かれる。
According to the invention of claim 2, the inlet pipe (5B)
The inner pipe (6B) of the container is cut away near the central axis of the container body (2) in the vicinity of the connection with the container body (2). Then, the refrigerant gas and the mist-like oil are guided in the axial center direction of the container body (2).

【0016】請求項3の発明によれば、入口管(5C)
の出口部分(5b)では偏平な断面楕円形状となってお
り、その長半径方向が容器本体(2)の中心軸と平行で
あるので、環状油膜の流れが容器本体(2)の壁面側に
積極的に導かれる。
According to the invention of claim 3, the inlet pipe (5C)
The outlet portion (5b) has a flat elliptical cross section and its major axis direction is parallel to the central axis of the container body (2), so that the flow of the annular oil film is directed toward the wall surface of the container body (2). Be actively guided.

【0017】請求項4の発明によれば、入口管(5C)
は、断面積が略一定であるので、流速は略一定である。
According to the invention of claim 4, the inlet pipe (5C)
Has a substantially constant cross-sectional area, so the flow velocity is substantially constant.

【0018】請求項5の発明によれば、容器本体(2)
は、その内壁面に撥油性の弗素樹脂コ−ティング層(1
1)が形成されているので、分離して容器本体(2)の
壁面に付着した油は、撥油性のため、容器本体(2)の
壁面に付着する球形に近い状態の大きな油粒子(12)
は小さな油粒子(13)を凝集し、より大きな球形状の
油粒子(14)に徐々に成長しながら、容器本体(2)
の下側に移動する。
According to the invention of claim 5, the container body (2)
Is an oil-repellent fluororesin coating layer (1
1) is formed, the oil that separates and adheres to the wall surface of the container body (2) has large oil particles (12) that are nearly spherical and adhere to the wall surface of the container body (2) due to oil repellency. )
Agglomerates small oil particles (13) and gradually grows into larger spherical oil particles (14), while the container body (2)
Move down.

【0019】請求項6の発明によれば、入口管(5A)
〜(5D)から吹き出される旋回流の流れ方向に略垂直
となるようにメッシュ部材(15)が設けられているの
で、ミスト状油はメッシュ部材(15)の網目の通過時
に付着して凝縮し、粒子径を成長させ質量を増大させ
る。それによって、遠心力による油の分離性能が高ま
る。メッシュ部材(15)は、容器本体(2)の内壁面
(2a)と間隔を存して設けられているので、内壁面
(2a)を沿って流れる環状油膜(16)の流れに影響
を与えない。
According to the invention of claim 6, the inlet pipe (5A)
Since the mesh member (15) is provided so as to be substantially perpendicular to the flow direction of the swirl flow blown out from (5D), the mist-like oil adheres and condenses when passing through the mesh of the mesh member (15). Then, the particle size is increased to increase the mass. Thereby, the separation performance of oil by centrifugal force is enhanced. Since the mesh member (15) is provided at a distance from the inner wall surface (2a) of the container body (2), it affects the flow of the annular oil film (16) flowing along the inner wall surface (2a). Absent.

【0020】[0020]

【実施例】以下、本発明の実施例を図面に沿って詳細に
説明する。
Embodiments of the present invention will now be described in detail with reference to the drawings.

【0021】−実施例1− 図1及び図2において、(1)は遠心分離式油分離器
で、容器本体(2)の上部に出口管(3)が、下部に油
戻し管(4)がそれぞれ配設され、容器本体(2)の上
部の略接線方向に入口管(5A)が接続されている。そ
して容器本体(2)内で気相冷媒と油とを高速で回転さ
せることによって、遠心力を利用して容器本体(2)の
内壁面に押付けて油を分離するように構成されている。
上記入口管(5A)は、図3及び図4に詳細を示すよう
に、断面円形状の内側管(6A)と外側管(7)とから
なる二重管構造に形成され、内側管(6)の入口部分
(6a)は外側管(7)の入口部分(7a)の略中心付
近に位置する一方、容器本体(2)との接続部位(6
b)は容器本体(2)に中心寄りに全体が偏位するよう
に屈曲し、外側管(7)の出口部分(7b)の中心側に
接している。即ち、入口管(5A)の入口部分では内側
管(6)が外側管(7)の略中心部に位置しているの
で、環状油膜は内側管(6A)と外側管(7)との間の
環状通路部(8A)を流れる。それから、入口管(5
A)の途中において、容器本体(2)の中心寄りに内側
管(6A)が屈曲して内側管(6A)の外周面が外側管
(7)の内周面に寄って行き、出口部部分(6b)が外
側管(7)の出口部分(7b)に接触するようになって
おり、環状油膜を容器本体(2)の壁面側に導く。
Example 1 In FIGS. 1 and 2, (1) is a centrifugal oil separator, which has an outlet pipe (3) in the upper part of the container body (2) and an oil return pipe (4) in the lower part. Are respectively arranged, and the inlet pipe (5A) is connected to the upper part of the container body (2) in a substantially tangential direction. Then, by rotating the gas-phase refrigerant and the oil in the container body (2) at a high speed, the centrifugal force is used to press against the inner wall surface of the container body (2) to separate the oil.
As shown in detail in FIGS. 3 and 4, the inlet pipe (5A) is formed in a double pipe structure composed of an inner pipe (6A) having a circular cross section and an outer pipe (7). The inlet part (6a) of () is located near the center of the inlet part (7a) of the outer tube (7), while the connecting part (6) to the container body (2) is provided.
b) is bent so that the whole body is displaced toward the center toward the container body (2), and is in contact with the center side of the outlet portion (7b) of the outer pipe (7). That is, since the inner pipe (6) is located substantially at the center of the outer pipe (7) at the inlet portion of the inlet pipe (5A), the annular oil film is located between the inner pipe (6A) and the outer pipe (7). Flows through the annular passage portion (8A). Then the inlet pipe (5
In the middle of (A), the inner pipe (6A) bends toward the center of the container body (2), and the outer peripheral surface of the inner pipe (6A) approaches the inner peripheral surface of the outer pipe (7) to form an outlet portion. (6b) contacts the outlet portion (7b) of the outer pipe (7) and guides the annular oil film to the wall surface side of the container body (2).

【0022】上記のように構成すれば、内側管(6A)
と外側管(7)との接触部位は内接触部分S2 になるの
で、両管(6A),(7)の間の環状通路部(8A)を
流れるいわゆる環状油膜は油分離器容器(1)の壁面方
向(外接触部分S1 側)に沿うように容器本体(2)内
に流入し、そして内側管(6A)内を流れる冷媒ガスと
ミスト状油との混合物は内接触部分S2 側に導かれるよ
うになる。その結果、いわゆる環状油膜による分離効率
の低下の原因となる内部乱れを防ぎ、環状油膜は容器本
体(2)の壁面を沿って下降する。
With the above construction, the inner pipe (6A)
Since the contact portion between the outer pipe (7) and the outer pipe (7) is the inner contact portion S2, the so-called annular oil film flowing in the annular passage portion (8A) between the two pipes (6A), (7) is the oil separator container (1). The mixture of the refrigerant gas and the mist-like oil flowing into the container body (2) along the wall surface direction (outer contact portion S1 side) of the inner pipe (6A) is guided to the inner contact portion S2 side. You will be able to be. As a result, internal turbulence that causes a reduction in separation efficiency due to a so-called annular oil film is prevented, and the annular oil film descends along the wall surface of the container body (2).

【0023】また、上記実施例1では、外側管(7)に
対して内側管(6A)を、入口管(5A)の出口部分付
近で偏心させるようにしているが、次の実施例2に示す
ように入口管における内側管の出口部分の断面形状を欠
円形状とするようにしてもよい。
In the first embodiment, the inner pipe (6A) is eccentric with respect to the outer pipe (7) near the outlet of the inlet pipe (5A). As shown in the drawing, the cross-sectional shape of the outlet portion of the inner pipe in the inlet pipe may be a truncated circle.

【0024】−実施例2− 図5〜図7に示すように、実施例1の内側管(6A)に
代えて、入口部分(6c)は外側管(7)の入口部分
(7a)の略中心付近に位置する断面円形状で、容器本
体(2)に接続される出口部分(6d)付近は外側管
(7)と略同じ直径となりかつ容器本体(2)の内壁面
に近い側の一部が欠如している断面欠円形状となってい
る内側管(6B)が用いられている。
Embodiment 2 As shown in FIGS. 5 to 7, instead of the inner pipe (6A) of the first embodiment, the inlet portion (6c) is substantially the same as the inlet portion (7a) of the outer pipe (7). It has a circular cross-section located near the center, and has the same diameter as the outer pipe (7) near the outlet portion (6d) connected to the container body (2) and one side closer to the inner wall surface of the container body (2). An inner pipe (6B) having a circular cross section with a lacking portion is used.

【0025】そして、入口管(5B)の出口部位におい
ては、内側管(6B)の出口部分(6d)の外周面と外
側管(6B)の出口部分(7b)の内周面との接触面積
が、上記実施例1の入口管(5A)に比べてかなり大き
くなっており(図6参照)、両管(6B),(7)間の
通路部(8B)は、入口部位では環状油膜に応じて環状
となっているが、出口部位では容器本体(2)の内壁面
側に位置する略半円形状となり、環状油膜を全て容器本
体(2)の内壁面側に集める一方、内側管(6B)内を
流れる、冷媒ガスとミスト状油の混合物を容器本体
(2)の軸中心方向に導くようになっている。それによ
って、いわゆる環状油膜による分離効率の低下の原因と
なる内部乱れを抑制できることとなり、環状油膜は容器
本体(2)の壁面を沿って下側に流れる。
At the outlet portion of the inlet pipe (5B), the contact area between the outer peripheral surface of the outlet portion (6d) of the inner pipe (6B) and the inner peripheral surface of the outlet portion (7b) of the outer pipe (6B). However, it is considerably larger than the inlet pipe (5A) of the first embodiment (see FIG. 6), and the passage portion (8B) between both pipes (6B) and (7) forms an annular oil film at the inlet portion. Accordingly, the outlet portion has a substantially semicircular shape located on the inner wall surface side of the container body (2), and all the annular oil films are collected on the inner wall surface side of the container body (2), while the inner pipe ( The mixture of the refrigerant gas and the mist-like oil flowing in 6B) is guided in the axial direction of the container body (2). As a result, it is possible to suppress internal turbulence that causes a decrease in separation efficiency due to a so-called annular oil film, and the annular oil film flows downward along the wall surface of the container body (2).

【0026】また、上記実施例1,2のように入口管
(5A),(5B)を二重管構造とすることなく、実施
例3に示すように一重構造の入口管でその断面形状を変
化させることで同様な効果を得ることもできる。
Further, the inlet pipes (5A) and (5B) do not have the double pipe structure as in the first and second embodiments, but the inlet pipe of the single structure has the cross-sectional shape as shown in the third embodiment. The same effect can be obtained by changing it.

【0027】−実施例3− 図8〜図13に示すように、実施例1,2の場合と同様
に、遠心分離式油分離器(1B)の容器本体(2)の上
部に出口管(3)が、下部に油戻し管(4)がそれぞれ
配設され、容器本体(2)の上部の略接線方向に、断面
形状が変化する入口管(5C)が接続されている(図1
0及び図11参照)。入口管(5C)は、入口部分(5
a)が略円形状の断面形状で(図12参照)、途中部分
において長半径方向が容器本体(2)の中心軸と平行な
偏平な楕円形状に変化して、出口部分(5b)も同じ偏
平な楕円形状となっており(図13参照)、その断面積
は略一定で流速が変化しないように構成されている。
Embodiment 3 As shown in FIGS. 8 to 13, as in Embodiments 1 and 2, the outlet pipe (at the upper part of the container body (2) of the centrifugal oil separator (1B) ( 3), the oil return pipes (4) are arranged in the lower part, respectively, and the inlet pipe (5C) whose cross-sectional shape changes is connected to the upper part of the container body (2) in a substantially tangential direction (FIG. 1).
0 and FIG. 11). The inlet pipe (5C) has an inlet portion (5
a) has a substantially circular cross-sectional shape (see FIG. 12), and the major axis direction changes to a flat elliptical shape parallel to the central axis of the container body (2) in the middle part, and the outlet part (5b) is also the same. It has a flat elliptical shape (see FIG. 13), and its cross-sectional area is substantially constant so that the flow velocity does not change.

【0028】これによって、入口管(5C)の入口部分
(5a)の内周面に形成される環状油膜は、入口管(5
C)内を出口部分(5b)に向かって流れていくうち
に、容器本体(2)の内壁面側に積極的に導かれて、容
器本体(2)の内壁面に沿うように流入するので、環状
油膜による内部乱れが抑制され、遠心力による、分離性
能を促進するようになっている。
As a result, the annular oil film formed on the inner peripheral surface of the inlet portion (5a) of the inlet pipe (5C) becomes the inlet pipe (5a).
While flowing in C) toward the outlet portion (5b), it is actively guided to the inner wall surface side of the container body (2) and flows along the inner wall surface of the container body (2). The internal disturbance due to the annular oil film is suppressed, and the separation performance due to the centrifugal force is promoted.

【0029】また、上述した容器本体(2)内では、図
14に示すように、容器本体(2)の内壁面上に一度分
離されて溜った油(9)が一様に付着しているので、高
速で回転する容器本体(2)内の気体によって再飛散し
てしまい、結果として分離効率が低下するおそれがある
ので、再飛散を防止して分離性能を高めるために、図1
5に示すように、容器本体(2)の内側壁面上に撥油性
を有する弗素樹脂コ−ティング処理を行って弗素樹脂コ
−ティング層(11)を形成するようにすることもでき
る。
In the container body (2) described above, as shown in FIG. 14, the oil (9) once separated and accumulated on the inner wall surface of the container body (2) is uniformly attached. Therefore, the gas in the container body (2) rotating at a high speed may be re-scattered, resulting in a decrease in the separation efficiency. Therefore, in order to prevent the re-scattering and improve the separation performance, as shown in FIG.
As shown in FIG. 5, the inner wall surface of the container body (2) may be subjected to an oil-repellent fluororesin coating treatment to form the fluororesin coating layer (11).

【0030】このようにすれば、容器本体(2)の壁面
に分離した油は、弗素樹脂コ−ティング層(11)の撥
油性のため、図16及び図17に示すように、容器本体
(2)の内側壁面に付着する球形に近い状態の大きな油
粒子(12)(遠心力F1 )は、小さな油粒子(13)
を凝集し、より大きな球形状の油粒子(14)に成長し
ながら、下側に移動する。大きく成長して質量が増加し
た油粒子(14)は側壁面側により大きな遠心力F2
(>F1 )を受けるようになり、それに加えて弗素樹脂
コ−ティング層(11)の撥油性による摩擦抵抗の低下
による効果で、大きな油粒子(14)は壁面の旋回気流
の流れに逆らわずに、容器本体(2)の下方に向かって
滑り流れていく。その結果、再飛散が防止される。
In this way, the oil separated on the wall surface of the container body (2) has the oil repellency of the fluororesin coating layer (11), so that as shown in FIGS. Large oil particles (12) (centrifugal force F1) that are attached to the inner wall surface of 2) and have a shape close to a sphere are small oil particles (13).
Are aggregated and grow into larger spherical oil particles (14), while moving downward. The oil particles (14) that have greatly grown and increased in mass have a larger centrifugal force F2 on the side wall surface side.
The large oil particles (14) do not oppose the flow of the swirling air flow on the wall surface due to the effect of lowering the frictional resistance due to the oil repellency of the fluororesin coating layer (11) in addition to (> F1). Then, it slides down toward the bottom of the container body (2). As a result, re-scattering is prevented.

【0031】ー実施例4ー 図18及び図19に示すように、実施例1,2,3の場
合と同様に、遠心分離式油分離器(1C)の容器本体
(2)の上部に出口管(3A)が、下部に油戻し管(4
A)がそれぞれ配設され、容器本体(2)の上部の略接
線方向に、断面形状が変化する入口管(5D)が接続さ
れている。出口管(3A)の、容器本体(2)内に突出
する突出部分(3a)に半径方向外方に延びるメッシュ
部材(15)が90度間隔で取付けられている。即ち、
メッシュ部材(15)は、入口管(5D)から吹き出さ
れる旋回流の流れ方向に略垂直になるように設けられて
いる。また、メッシュ部材(15)は、容器本体(2)
の内壁面(2a)と間隔を存して設けられているので、
内壁面(2a)を沿って流れる環状油膜(16)の流れ
に影響を与えない(図20参照)。尚、(17)は下側
になるほど半径が小さくなるホッパ部材、(18)は容
器本体(2)下部に形成される油溜り部である。
—Example 4— As shown in FIGS. 18 and 19, as in Examples 1, 2, and 3, the outlet is provided at the upper part of the container body (2) of the centrifugal oil separator (1C). The pipe (3A) has an oil return pipe (4
A) are arranged respectively, and an inlet pipe (5D) having a varying cross-sectional shape is connected to the upper portion of the container body (2) in a substantially tangential direction. A mesh member (15) extending radially outward is attached to a projecting portion (3a) of the outlet pipe (3A) projecting into the container body (2) at 90 degree intervals. That is,
The mesh member (15) is provided so as to be substantially perpendicular to the flow direction of the swirling flow blown out from the inlet pipe (5D). Further, the mesh member (15) is the container body (2).
Since it is provided at a distance from the inner wall surface (2a) of
It does not affect the flow of the annular oil film (16) flowing along the inner wall surface (2a) (see FIG. 20). In addition, (17) is a hopper member whose radius becomes smaller toward the lower side, and (18) is an oil sump portion formed at the bottom of the container body (2).

【0032】これによって、ガスに含まれるミスト状油
は、メッシュ部材(15)の網目の通過時に付着して凝
縮し、粒子同士の結合により粒子径即ち質量を増大さ
せ、それによって、遠心力が大きくなり、遠心力による
油の分離性能が高まる。即ち、入口管(5D)の中心部
を流れるミスト状油と冷媒ガスのうちミスト状油の粒子
径即ち質量があまりにも微小すぎると、油に作用する遠
心力が働きにくくなり、その結果油の分離効率を低下さ
せることになるが、メッシュ部材(15)にミスト状油
を付着させて取り除くようにしているので、分離効率が
高まる。尚、入口管(5D)の代えて、前述した入口管
(5A)〜(5C)を用いることができるのはいうまで
もない。
As a result, the mist-like oil contained in the gas adheres and condenses when passing through the mesh of the mesh member (15) to increase the particle size, that is, the mass due to the binding of the particles, whereby the centrifugal force is increased. It becomes larger and the separation performance of oil by centrifugal force is improved. That is, if the particle size, that is, the mass of the mist-like oil among the mist-like oil and the refrigerant gas flowing through the center of the inlet pipe (5D) is too small, the centrifugal force acting on the oil becomes difficult to work, and as a result, the oil Although the separation efficiency will be reduced, since the mist-like oil is attached to the mesh member (15) to be removed, the separation efficiency is increased. Needless to say, the above-mentioned inlet pipes (5A) to (5C) can be used instead of the inlet pipe (5D).

【0033】[0033]

【発明の効果】請求項1の発明は、上記のように、入口
管を、内側管と外側管とからなる二重管構造とし、内側
管の入口部分を外側管の略中心に位置し、容器本体に接
続される出口部分を容器本体の中心寄りに偏位させて外
側管に接するようにしているので、環状油膜は容器本体
の壁面方向に沿って流れるようになり、環状油膜による
分離効率の低下の原因となる内部乱れを防ぐことがで
き、環状油膜を壁面を沿って下降させることができる。
According to the invention of claim 1, as described above, the inlet pipe has a double-pipe structure composed of an inner pipe and an outer pipe, and the inlet portion of the inner pipe is located substantially at the center of the outer pipe. Since the outlet part connected to the container body is biased toward the center of the container body and is in contact with the outer pipe, the annular oil film flows along the wall surface direction of the container body, and the separation efficiency by the annular oil film is increased. It is possible to prevent internal turbulence that causes a decrease in the oil pressure, and it is possible to lower the annular oil film along the wall surface.

【0034】請求項2の発明は、入口管の内側管の出口
部分付近を、容器本体の壁面側に近い部分を切除した欠
円形状としているので、環状油膜が全て容器本体の壁面
側に集められて、容器本体の壁面方向に沿って流れるよ
うになり、環状油膜による分離効率の低下の原因となる
内部乱れを防ぐことができる。
According to the second aspect of the present invention, the vicinity of the outlet portion of the inner pipe of the inlet pipe is formed into a truncated circle shape by cutting out a portion close to the wall surface side of the container body, so that all the annular oil films are collected on the wall surface side of the container body. Thus, it becomes possible to flow along the wall surface direction of the container body, and it is possible to prevent internal turbulence that causes a reduction in separation efficiency due to the annular oil film.

【0035】請求項3の発明は、入口管の出口部分を、
長半径方向が容器本体の中心軸と平行となる偏平な断面
楕円形状としたので、環状油膜の流れを容器本体の壁面
側に積極的に導くことができ、出口部分で起こる、環状
油膜による内部乱れを防ぎ、かつ、遠心力による分離性
能を促進することができる。そして、請求項4の発明
は、入口管は断面積が略一定となるようにしているの
で、流速を略一定とすることができる。
According to a third aspect of the invention, the outlet portion of the inlet pipe is
The flat cross-sectional elliptical shape whose major axis is parallel to the center axis of the container body allows the flow of the annular oil film to be positively guided to the wall surface side of the container body, and the internal portion of the annular oil film that occurs at the outlet part It is possible to prevent turbulence and promote separation performance by centrifugal force. Further, in the invention of claim 4, the cross-sectional area of the inlet pipe is made substantially constant, so that the flow velocity can be made substantially constant.

【0036】請求項5の発明は、容器本体の内壁面に撥
油性の弗素樹脂コ−ティング層を形成しているので、容
器本体の壁面に分離した油の粒子を、より大きな球形状
の粒子に成長させながら、下側に移動させることがで
き、再飛散を防止することができる。
According to the fifth aspect of the present invention, since the oil repellent fluororesin coating layer is formed on the inner wall surface of the container body, the separated oil particles are formed into larger spherical particles. It can be moved to the lower side while growing, and re-scattering can be prevented.

【0037】請求項6の発明は、メッシュ部材により油
の粒子径即ち質量を増大させるようにしているので、遠
心力による分離性能がより高まる。
According to the sixth aspect of the invention, since the mesh member is used to increase the particle size of oil, that is, the mass, the separation performance by centrifugal force is further enhanced.

【図面の簡単な説明】[Brief description of drawings]

【図1】実施例1の遠心分離式油分離器の斜視図であ
る。
FIG. 1 is a perspective view of a centrifugal oil separator according to a first embodiment.

【図2】同横断面図である。FIG. 2 is a transverse sectional view of the same.

【図3】入口管の斜視図である。FIG. 3 is a perspective view of an inlet pipe.

【図4】入口管の縱断面図である。FIG. 4 is a vertical sectional view of the inlet pipe.

【図5】実施例2についての図2と同様の図である。5 is a view similar to FIG. 2 for Example 2. FIG.

【図6】実施例2についての図3と同様の図である。FIG. 6 is a view similar to FIG. 3 for the second embodiment.

【図7】実施例2についての図4と同様の図である。FIG. 7 is a view similar to FIG. 4 for the second embodiment.

【図8】実施例3についての図1と同様の図である。FIG. 8 is a view similar to FIG. 1 for a third embodiment.

【図9】実施例3についての概略図である。FIG. 9 is a schematic view of Example 3.

【図10】入口管の横断面図である。FIG. 10 is a cross-sectional view of the inlet pipe.

【図11】入口管の縱断面図である。FIG. 11 is a vertical sectional view of the inlet pipe.

【図12】入口管の入口部分の正面図である。FIG. 12 is a front view of an inlet portion of an inlet pipe.

【図13】入口管の出口部分の正面図である。FIG. 13 is a front view of the outlet portion of the inlet pipe.

【図14】容器本体の壁面への油の付着状態を示す説明
図である。
FIG. 14 is an explanatory diagram showing a state in which oil is attached to the wall surface of the container body.

【図15】変形例の概略説明図である。FIG. 15 is a schematic explanatory diagram of a modified example.

【図16】作用の説明図である。FIG. 16 is an explanatory diagram of an operation.

【図17】作用の説明図である。FIG. 17 is an explanatory diagram of an operation.

【図18】実施例4の概略説明図である。FIG. 18 is a schematic explanatory diagram of a fourth embodiment.

【図19】同横断面図である。FIG. 19 is a transverse sectional view of the same.

【図20】作用の説明図である。FIG. 20 is an explanatory diagram of an operation.

【図21】従来例の斜視図である。FIG. 21 is a perspective view of a conventional example.

【図22】従来例の概略説明図である。FIG. 22 is a schematic explanatory diagram of a conventional example.

【図23】従来例の作用の説明図である。FIG. 23 is an explanatory diagram of the operation of the conventional example.

【符号の説明】[Explanation of symbols]

1A,1B,1C 遠心分離式式油分離器 2 容器本体 2a 内壁面 3 出口管 4,4A 油戻り管 5A,5B,5C,5D 入口管 6A,6B 内側管 6a,6c 入口部分 6b,6d 出口部分 7 外側管 11 弗素樹脂コーティング層 15 メッシュ部材 1A, 1B, 1C Centrifugal oil separator 2 Container body 2a Inner wall surface 3 Outlet pipe 4,4A Oil return pipe 5A, 5B, 5C, 5D Inlet pipe 6A, 6B Inner pipe 6a, 6c Inlet part 6b, 6d Outlet Part 7 Outer tube 11 Fluorocarbon resin coating layer 15 Mesh member

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 容器本体(2)の上部に出口管(3)
が、下部に油戻し管(4)がそれぞれ配設され、容器本
体(2)の上部の略接線方向に入口管(5A),(5
B)が接続され、容器本体(2)内で気相冷媒と油とを
高速で回転させることによって、遠心力で容器本体
(2)の内壁面に押付けて油を分離する遠心分離式油分
離器(1A)であって、 上記入口管(5A)は、内側管(6A)と外側管(7)
とからなる二重管構造に形成されており、内側管(6
A)の入口部分(6a)は外側管(7)の入口部分(7
a)の略中心付近に位置し、容器本体(2)と接続され
る出口部分(6b)は容器本体(2)の中心寄りに偏位
して、外側管(7)の出口部分(7b)の、容器本体
(2)の中心寄りの内周面に接していることを特徴とす
る遠心分離式油分離器。
1. An outlet pipe (3) at the top of the container body (2).
However, the oil return pipes (4) are respectively arranged at the lower portions thereof, and the inlet pipes (5A), (5) are arranged substantially tangentially to the upper portion of the container body (2).
Centrifugal oil separation in which B) is connected and the gas-phase refrigerant and the oil are rotated at high speed in the container body (2) to press the inner wall surface of the container body (2) by centrifugal force to separate the oil. Device (1A), wherein the inlet pipe (5A) is an inner pipe (6A) and an outer pipe (7)
The inner tube (6
The inlet portion (6a) of A) is the inlet portion (7) of the outer tube (7).
The outlet portion (6b) located near the center of the container (a) and connected to the container body (2) is displaced toward the center of the container body (2), and the outlet portion (7b) of the outer pipe (7). The centrifugal separation type oil separator, which is in contact with the inner peripheral surface of the container body (2) near the center.
【請求項2】 請求項1の内側管(6A)に代えて、入
口部分(6c)においては外側管(7)の略中心付近に
位置する断面円形状で、容器本体(2)と接続される出
口部分(6d)付近においては外側管(7)と略同じ直
径となりかつ容器本体(2)の壁面に近い側の一部が欠
如している断面欠円形状である内側管(6B)が用いら
れている入口管(5B)を有するところの請求項1記載
の遠心分離式油分離器。
2. In place of the inner pipe (6A) of claim 1, the inlet portion (6c) is connected to the container body (2) with a circular cross-section located near the center of the outer pipe (7). In the vicinity of the outlet portion (6d), an inner pipe (6B) having a substantially circular cross section with a diameter substantially the same as that of the outer pipe (7) and lacking a part on the side close to the wall surface of the container body (2) is formed. Centrifugal oil separator according to claim 1, characterized in that it has the inlet pipe (5B) used.
【請求項3】 請求項1の二重管構造の入口管(5A)
に代えて、入口部分(5a)では断面略円形状で、そこ
から出口部位に向かって徐々に断面楕円形状に変化し、
出口部分(5b)では偏平な断面楕円形状となってお
り、その長半径方向が、容器本体(2)の中心軸と平行
である入口管(5C)が用いられているところの請求項
1記載の遠心分離式油分離器。
3. The inlet pipe (5A) of the double pipe structure according to claim 1.
Instead of the above, the inlet portion (5a) has a substantially circular cross section, and gradually changes to an elliptical cross section from there to the outlet portion.
The outlet pipe (5b) has a flat elliptical cross section, and an inlet pipe (5C) is used whose major axis direction is parallel to the central axis of the container body (2). Centrifugal oil separator.
【請求項4】 入口管(5C)は、断面積が略一定であ
るところの請求項3記載の遠心分離式油分離器。
4. Centrifugal oil separator according to claim 3, wherein the inlet pipe (5C) has a substantially constant cross-sectional area.
【請求項5】 容器本体(2)は、内壁面に撥油性の弗
素樹脂コ−ティング層(11)が形成されているところ
の請求項1〜請求項4のいずれか1つに記載の遠心分離
式油分離器。
5. The centrifuge according to claim 1, wherein the container body (2) has an oil repellent fluororesin coating layer (11) formed on the inner wall surface. Separation type oil separator.
【請求項6】 出口管(3)は容器本体(2)内に突出
する突出部分(3a)を有し、該突出部分(3a)に、
容器本体(2)の内壁面(2a)と間隔を存して、入口
管(5A)〜(5D)から吹き出す流れに対して略垂直
となるようにメッシュ部材(15)が設けられていると
ころの請求項1〜請求項5のいずれか1つに記載の遠心
分離式油分離器。
6. The outlet pipe (3) has a protruding part (3a) protruding into the container body (2), and the protruding part (3a) has
Where a mesh member (15) is provided so as to be substantially perpendicular to the flow blown out from the inlet pipes (5A) to (5D) with a space from the inner wall surface (2a) of the container body (2). The centrifugal separation type oil separator according to any one of claims 1 to 5.
JP4149290A 1992-03-09 1992-06-09 Centrifugal oil separator Expired - Fee Related JP2830615B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4-50432 1992-03-09
JP5043292 1992-03-09

Publications (2)

Publication Number Publication Date
JPH05312438A true JPH05312438A (en) 1993-11-22
JP2830615B2 JP2830615B2 (en) 1998-12-02

Family

ID=12858710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4149290A Expired - Fee Related JP2830615B2 (en) 1992-03-09 1992-06-09 Centrifugal oil separator

Country Status (1)

Country Link
JP (1) JP2830615B2 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1724537A1 (en) * 2005-05-16 2006-11-22 LG Electronics Inc. Oil separator and air conditioner having the same
CN102967095A (en) * 2012-10-29 2013-03-13 合肥通用机械研究院 Variable volume high-efficiency vertical oil separator for refrigeration compressor testing device
WO2015159559A1 (en) * 2014-04-16 2015-10-22 三菱電機株式会社 Oil separator
JP5838457B1 (en) * 2014-09-19 2016-01-06 株式会社フクハラ Separator and compressed air circuit using the same
WO2018198516A1 (en) * 2017-04-27 2018-11-01 三菱電機株式会社 Oil separator and refrigeration cycle device
US10655899B2 (en) 2015-12-25 2020-05-19 Samsung Electronics Co., Ltd. Oil separator
CN111765673A (en) * 2019-03-30 2020-10-13 浙江三花智能控制股份有限公司 Oil separator and refrigerating system with same
KR20210000715A (en) * 2020-05-13 2021-01-05 써멀마스터 주식회사 A Cyclone Type a Device for Separating an Oil Component for a Refrigerating Vehicle
WO2022269804A1 (en) * 2021-06-23 2022-12-29 三菱電機株式会社 Screw compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848616B (en) * 2015-05-20 2017-06-30 深圳麦克维尔空调有限公司 Gs-oil separator in air-conditioning system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1724537A1 (en) * 2005-05-16 2006-11-22 LG Electronics Inc. Oil separator and air conditioner having the same
JP2006322701A (en) * 2005-05-16 2006-11-30 Lg Electronics Inc Oil separator and air conditioner having the same
CN102967095A (en) * 2012-10-29 2013-03-13 合肥通用机械研究院 Variable volume high-efficiency vertical oil separator for refrigeration compressor testing device
WO2015159559A1 (en) * 2014-04-16 2015-10-22 三菱電機株式会社 Oil separator
JP5868557B1 (en) * 2014-04-16 2016-02-24 三菱電機株式会社 Oil separator
JP5838457B1 (en) * 2014-09-19 2016-01-06 株式会社フクハラ Separator and compressed air circuit using the same
US10655899B2 (en) 2015-12-25 2020-05-19 Samsung Electronics Co., Ltd. Oil separator
WO2018198516A1 (en) * 2017-04-27 2018-11-01 三菱電機株式会社 Oil separator and refrigeration cycle device
CN111765673A (en) * 2019-03-30 2020-10-13 浙江三花智能控制股份有限公司 Oil separator and refrigerating system with same
KR20210000715A (en) * 2020-05-13 2021-01-05 써멀마스터 주식회사 A Cyclone Type a Device for Separating an Oil Component for a Refrigerating Vehicle
WO2022269804A1 (en) * 2021-06-23 2022-12-29 三菱電機株式会社 Screw compressor

Also Published As

Publication number Publication date
JP2830615B2 (en) 1998-12-02

Similar Documents

Publication Publication Date Title
EP1312879B1 (en) Oil separator and outdoor unit with the oil separator
AU758453B2 (en) Device for reducing pressure loss of cyclone dust collector
US6129775A (en) Terminal insert for a cyclone separator
US6312594B1 (en) Insert for a cyclone separator
US8075656B2 (en) Separator assembly
US5853440A (en) Shroud and cyclonic cleaning apparatus incorporating same
CN104040256B (en) Separator including cyclone
US20010042713A1 (en) Cyclone separator having a variable longitudinal profile
US6890375B2 (en) Cyclonic air filter with exit baffle
US20060162299A1 (en) Separation apparatus
JPH05312438A (en) Centrifugal oil separator
US6168716B1 (en) Cyclone separator having a variable transverse profile
US4486206A (en) Cyclone type air cleaner
CN107898384A (en) Dust and gas separator and there is its dust catcher
US7258727B2 (en) Apparatus for separating particles from a flowing medium
KR102319230B1 (en) A Cyclone Type a Device for Separating an Oil Component for a Refrigerating Vehicle
JP2005069654A (en) Oil separator
TW202000293A (en) Filtration system
JP5868557B1 (en) Oil separator
JP2004081957A (en) Cyclone
JPH05340650A (en) Centrifugal separation type oil separator
JP2602772Y2 (en) Cyclone separator
JPH109723A (en) Oil separator
JPH0244859Y2 (en)
JPS59130559A (en) Cyclone dust collector

Legal Events

Date Code Title Description
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 19980825

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20070925

Year of fee payment: 9

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080925

Year of fee payment: 10

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090925

Year of fee payment: 11

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100925

Year of fee payment: 12

LAPS Cancellation because of no payment of annual fees