JPS6047893A - Enclosed type screw compressor - Google Patents
Enclosed type screw compressorInfo
- Publication number
- JPS6047893A JPS6047893A JP15429983A JP15429983A JPS6047893A JP S6047893 A JPS6047893 A JP S6047893A JP 15429983 A JP15429983 A JP 15429983A JP 15429983 A JP15429983 A JP 15429983A JP S6047893 A JPS6047893 A JP S6047893A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- compressor
- oil separator
- screw compressor
- gas
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は冷凍機又は空気調節機等に使用される密閉形ス
クリュ圧縮機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hermetic screw compressor used in refrigerators, air conditioners, etc.
冷凍機等に使用される圧縮機に於いては、消音、コンパ
クト化の目的の為にスクリュ圧縮機とその駆動モータと
を密閉容器内に封入している。In compressors used in refrigerators and the like, the screw compressor and its drive motor are enclosed in a closed container for the purpose of noise reduction and compactness.
斯かる圧縮機ではモータ、圧縮機のｆ、’ｌ滑油も密閉
容器内に封入され−る。従って、密閉形スクリュ圧縮機
内を流動する作動流体には飛沫した微細な油粒が混在す
ることになる。In such a compressor, the motor and the lubricating oil of the compressor are also sealed in an airtight container. Therefore, the working fluid flowing in the hermetic screw compressor is mixed with fine oil droplets.
作動流体がフレオンの如き冷媒である様な場合には、油
による冷媒の吸収が起るので圧縮された作動流体が圧縮
機より排出する以前に作動流体より油を分離しなければ
ならない。In some cases where the working fluid is a refrigerant such as Freon, absorption of the refrigerant by the oil occurs and the oil must be separated from the compressed working fluid before it is discharged from the compressor.
第１図は従来の密閉形スクリュ圧縮機を示づもので、密
閉容器１内にモータ２、スクリュ圧縮ｙｉ３とを一体化
して嵌装しており、モータ２ど圧縮機３とはケーシング
４に収納され、モータ２と圧縮１幾３とを連結する回転
軸５はケーシング４の軸受部６により回転自在に支承さ
れている。Fig. 1 shows a conventional hermetic screw compressor, in which a motor 2 and a screw compressor yi3 are integrated and fitted in a hermetic container 1, and the motor 2 and compressor 3 are connected to a casing 4. A rotary shaft 5 which is housed and connects the motor 2 and the compressor 1 and 3 is rotatably supported by a bearing portion 6 of the casing 4 .
密閉容器１の底部に貯溜された油７は差圧によって油路
８等から吸上げられ、圧縮機３、軸受部６を潤滑する。The oil 7 stored at the bottom of the closed container 1 is sucked up from the oil passage 8 etc. due to the differential pressure, and lubricates the compressor 3 and the bearing part 6.
モータ２の回転により圧縮機３が作動し、吸入口９より
作動流体１０を吸引ツる。作動流体１０はモータ２の間
隙を通って圧縮機３に至り圧縮され、ケーシング４の周
囲に形成される空間１１を通って吐出口１２より排出さ
れる。前記圧縮機３を通過する過程で油の微細な飛沫が
作動流体中に混在する状態となるが、この飛沫は空間１
１に設けた油分離エレメント１３で分離している。The compressor 3 is operated by the rotation of the motor 2, and the working fluid 10 is sucked through the suction port 9. The working fluid 10 passes through the gap between the motor 2, reaches the compressor 3, is compressed, and is discharged from the discharge port 12 through the space 11 formed around the casing 4. In the process of passing through the compressor 3, fine droplets of oil become mixed in the working fluid, but these droplets are mixed in the space 1.
They are separated by an oil separation element 13 provided at 1.
而し、上記した従来例の油分離エレメントが設けられる
箇所の流路断面積は大ぎく、油分離ニレメンｉ・を通過
する作動流体の速度は１〜３ｍ／ ｓｅｃである。又、
圧縮機３の出口部分に比べ作動流体はｔｌ、服し、油飛
沫も分散し密度も低下している。従って、充分′油分離
をしようとすれば油分離エレメントが大型化し、而も分
離できる油飛沫の径もせいぜい２０μ程度のものである
。However, the cross-sectional area of the flow path at the location where the conventional oil separation element is provided is large, and the speed of the working fluid passing through the oil separation element is 1 to 3 m/sec. or,
Compared to the outlet portion of the compressor 3, the working fluid is tl, oil droplets are dispersed, and the density is reduced. Therefore, if sufficient oil separation is to be achieved, the size of the oil separation element must be increased, and the diameter of the oil droplets that can be separated is approximately 20 microns at most.
本発明は上記した実情に鑑みなしたもので、油飛沫を効
率よく分離すると共に油分離エレメントの小型化を図る
ことを目的とするものである。The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to efficiently separate oil droplets and to downsize an oil separation element.
以下図面を参照しつつ本発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
図示の如くケーシング１４は下部体１５、下部体１６か
ら構成され、下部体１６のフランジ部１７にスクリュ圧
縮機３を取付け、スクリュ圧縮機の回転軸５を下部体１
５内部に突出せしめ、回転軸５にロータ１８を嵌着する
。As shown in the figure, the casing 14 is composed of a lower body 15 and a lower body 16. The screw compressor 3 is attached to the flange portion 17 of the lower body 16, and the rotating shaft 5 of the screw compressor is connected to the lower body 1.
5, and the rotor 18 is fitted onto the rotating shaft 5.
又、スクリュ圧縮機３には下部体１６を貫通したガス吸
入管１９を接続してあり、スクリュ圧縮機３の下部を下
部体１６に貯溜した潤滑油２０に浸漬し、下面に設けた
孔２１より潤滑油２０を吸上げる様にしている。Further, the screw compressor 3 is connected to a gas suction pipe 19 passing through the lower body 16, and the lower part of the screw compressor 3 is immersed in the lubricating oil 20 stored in the lower body 16, and the hole 21 provided in the lower surface is immersed in the lubricating oil 20 stored in the lower body 16. It is designed to absorb more lubricating oil 20.
圧縮機３の吐出口２２は側面に設（）てあり、圧縮した
ガスを水平方向に吐出する様にしである。The discharge port 22 of the compressor 3 is provided on the side surface so as to discharge compressed gas in a horizontal direction.
下部体１６の内壁、該吐出口２２に対峙する部分に衝突
杉油分離器２３を設ける。A collision cedar oil separator 23 is provided on the inner wall of the lower body 16 at a portion facing the discharge port 22.
該油分離器２３はエレメント２４と、ホルダ２５から成
り、該ホルダ２５は吐出口２２部分が欠切されており、
更に底板の所要位置にはドレン孔２６を穿設しである。The oil separator 23 consists of an element 24 and a holder 25, and the holder 25 has the discharge port 22 cut out.
Furthermore, drain holes 26 are bored at required positions on the bottom plate.
エレメント２４は網等を多層に重ねたもの等であって、
吐出口１２より吐出されたガスはニレメン１〜２４を通
過しボルダ２５で反射され、再びニレメン１〜２４を通
過する様になっている。The element 24 is made of a multi-layered net or the like,
The gas discharged from the discharge port 12 passes through the Niremen 1 to 24, is reflected by the boulder 25, and passes through the Niremen 1 to 24 again.
前記した上部体１５は２重筒構造となっており、外筒２
７と内筒２８で形成される筒状空間２９はフランジ３０
で閉塞し、該フランジ３０ど前記フランジ部１７とを契
合固着し、上部体１５と下部体１６とを一体化する。The upper body 15 described above has a double cylinder structure, and the outer cylinder 2
The cylindrical space 29 formed by the inner cylinder 28 and the flange 30
The flange 30 and the flange portion 17 are engaged and fixed to integrate the upper body 15 and the lower body 16.
両フランジ１７．３０には所要数の通孔３１を貫通させ
、下部体１６の内部と前記筒状空間２９とを連通し、該
通孔３１の直上には作動流体進路変更用の邪魔板片３２
を設ける。又、内向２８の上部には所要数の連絡孔３３
を穿設して内筒２８の内部ど筒状空間２９とを連通し、
内筒２８の下端付近にガス吐出口３４を段は内筒２８の
内部と外部とを連通づ−る。A required number of through holes 31 are passed through both flanges 17 and 30 to communicate the inside of the lower body 16 and the cylindrical space 29, and a baffle plate piece for changing the course of the working fluid is provided directly above the through holes 31. 32
will be established. In addition, the required number of communication holes 33 are provided at the upper part of the inward direction 28.
is bored to communicate with the internal cylindrical space 29 of the inner cylinder 28,
A gas discharge port 34 is provided near the lower end of the inner cylinder 28 to communicate the inside and outside of the inner cylinder 28.
該内向２８の内壁には前記ロータ１８が遊嵌する様ステ
ータ３５を取付け、該ステータ３５と前記ロータ１８に
よって圧縮機３駆動用のモータ２を構成する。A stator 35 is attached to the inner wall of the inward direction 28 so that the rotor 18 is loosely fitted therein, and the stator 35 and the rotor 18 constitute a motor 2 for driving the compressor 3.
次に上記実施例の作動を説明す゛る。Next, the operation of the above embodiment will be explained.
モータ２に通電して、圧縮機３を駆動するとガスはガス
吸入管１つより吸引され、圧縮Ｉ！１３で圧縮され、吐
出口２２より油分離器２３に向って吐出される。ガスが
エレメント２４中を往復過程で素材に衝突し油糧が成長
し分離される。油層３６はドレン孔２Ｇより落下する。When the motor 2 is energized and the compressor 3 is driven, gas is sucked through one gas suction pipe and compressed I! 13, and is discharged from the discharge port 22 toward the oil separator 23. As the gas moves back and forth through the element 24, it collides with the material, causing oil seeds to grow and separate. The oil layer 36 falls from the drain hole 2G.
油分離器２３で反射されたガス３７は通孔３１を通って
前記筒状空間２９に流入づ−るが、邪魔板片３２に衝突
して、方向変更され、内筒２８の周囲を回る旋回流とな
って上昇し、連絡孔３３を通って内筒１η部に流入する
。The gas 37 reflected by the oil separator 23 flows into the cylindrical space 29 through the through hole 31, but collides with the baffle plate piece 32, changes direction, and turns around the inner cylinder 28. It rises as a stream and flows into the inner cylinder 1η portion through the communication hole 33.
内筒内部に流入したガス３７は、ステータ３５と内向２
８の間隙、ステータ３５とロータ１８との間隙を通過し
、モータ２を冷却しつつ通過し、ガス吐出口３４より排
出される。The gas 37 that has flowed into the inner cylinder is connected to the stator 35 and the inward direction 2.
8 and the gap between the stator 35 and the rotor 18 , passes through the motor 2 while cooling it, and is discharged from the gas discharge port 34 .
尚、上記したガス流に於いて、ガス３７が邪魔板片３２
と衝突した際、更に旋回流での遠心力の作用で、油分離
器２３で分離されなかった油が分離される。筒状空間２
９で分離された油は通孔３１を通って、或は適宜膜（づ
られるドレン孔３８を通って下方へ落下する。In addition, in the above-mentioned gas flow, the gas 37 passes through the baffle plate piece 32.
When the oil collides with the oil, the oil that has not been separated by the oil separator 23 is further separated by the action of centrifugal force in the swirling flow. Cylindrical space 2
The oil separated at 9 falls downward through the through hole 31 or through the drain hole 38, which is appropriately connected to the membrane.
而して、上記構成の油分離器２３では最も流速が早く、
且ガス流が収束して油飛沫密度の濃い状態で油分離する
為、効率が箸しくよい。Therefore, in the oil separator 23 having the above configuration, the flow rate is the highest,
In addition, since the gas flow converges and the oil is separated in a state where the oil droplet density is high, efficiency is very high.
尚、上記実施例では圧縮椙（３からガスを水平方向に吐
出させた場合であるが、第４図に示す様に下方に吐出さ
せてもＪ：い。In the above embodiment, the gas is discharged horizontally from the compressor 3, but it may also be discharged downward as shown in FIG.
又、上記した油分離器２３については（で々の構造が考
えられ、そのいくつかの例を第５図〜第８図に於いて説
明する。Furthermore, the above-mentioned oil separator 23 can have various structures, some examples of which will be explained with reference to FIGS. 5 to 8.
第５図（イ）に示ずものはエレメント２４の素材に線材
３９を用いたもので、ニレメン１−の（を造どじでは、
（ロ）に示す如くメツシュに編んで積層したもの、（ハ
）に示す如く井桁状に組んで積層したものがある。The one not shown in Fig. 5(a) uses a wire rod 39 as the material of the element 24.
As shown in (b), there are those that are knitted in a mesh pattern and laminated, and as shown in (c), there are those that are knitted and laminated in a grid pattern.
又、第６図〈イ）に示すものはエレメント２４の素材に
帯板４０を用いたもので、ニレメン１〜の構造としては
、井桁状に組んだもの（１コ）、ハニカム状に組／υだ
もの（ニ）が挙げられる、１又、第７図（イ）はニレメ
ン１〜２４の素材に細棒４１を用いたものでその配列は
（ロ）に示す如くなる。In addition, the one shown in FIG. 6 (A) uses a band plate 40 as the material of the element 24, and the structures of Niremen 1 to 1 are those assembled in a cross-shaped structure (1 piece), and those assembled in a honeycomb shape. Figure 7 (a) shows a thin rod 41 used as the material for elmmen 1 to 24, and the arrangement thereof is as shown in (b).
又、第８図（イ〉はエレメント２４の素材に■ｌ線４２
を用いたもので、細線４２４ま（口〉に見る様にブラシ
状に植設する。Also, in Figure 8 (A), the material of the element 24 is
The thin wires are planted in the shape of a brush as seen at the mouth.
又、エレメントはイ■等であってもよい。Further, the element may be ①, etc.
以上述べた如く本発明によれば、油の分離を効）Ｖよく
行い得ると共に油分ｍｔ器をコンバク１〜にし１ｑる。As described above, according to the present invention, it is possible to effectively separate oil, and the oil content meter is set to 1 to 1q.
第１図は従来の密閉形スクリュ圧縮機の断面図、第２図
は本発明の詳細な説明図、第３図は第２図のＡ−△矢視
図、第４図は木ざｔ明の他の実施例の説明図、第５図（
イ）（ロ）（ハ）、第６図（イ）（ロ）（ハ）、第７図
（イ）（ロ）、第８図（イ）（ロ）はいずれも本発明で
使用される油分離器の説明図である。
２はモータ、３はスクリュ圧縮機、１４はケーシング、
１５は上部体、１６は下部体、２３は油分離器、２１は
外筒、２８は内筒、２９は筒状空間、３２は邪魔板片を
示づ。
特 許 出 願 人
石川、Ω播磨重工業株式会社
第７図 （イ）
第８図 （イ）
ＪＪ 嶋
（ロ）
Ｏｏ ０
０ ｏ Ｏ
（ロ）Fig. 1 is a sectional view of a conventional hermetic screw compressor, Fig. 2 is a detailed explanatory view of the present invention, Fig. 3 is a view taken along the line A-△ in Fig. 2, and Fig. 4 is a cross-sectional view of a conventional hermetic screw compressor. An explanatory diagram of another embodiment, Fig. 5 (
A) (B) (C), Figure 6 (A) (B) (C), Figure 7 (A) (B), and Figure 8 (A) (B) are all used in the present invention. It is an explanatory view of an oil separator. 2 is a motor, 3 is a screw compressor, 14 is a casing,
15 is an upper body, 16 is a lower body, 23 is an oil separator, 21 is an outer cylinder, 28 is an inner cylinder, 29 is a cylindrical space, and 32 is a baffle plate piece. Patent application Hitoshi Ishikawa, Ω Harima Heavy Industries Co., Ltd. Figure 7 (a) Figure 8 (a) JJ Shima (b) Oo 0 0 o O (b)
Claims (1)
縮機を設け、２重筒にした上部体の内筒内にモータを段
り、該スクリュ圧縮機とモータとを回転軸で連結し、該
圧縮機の吐出口に対峙させて衝突杉油分離器を設け、該
吐出口から吐出されたガスを油分離器で反射させ上部体
の筒状空間に導き、旋回させつつ上昇させて内筒内へ流
入させ、モータを通過させて上部体の下部より吐出させ
る様構成したことを特徴とする密閉形スクリュ圧縮機。1) A screw compressor is installed in the lower part of the casing which is divided into upper and lower parts, a motor is arranged in the inner cylinder of the upper part which is made into a double cylinder, and the screw compressor and motor are connected by a rotating shaft. An impingement cedar oil separator is provided opposite the discharge port of the compressor, and the gas discharged from the discharge port is reflected by the oil separator and guided into the cylindrical space of the upper body, and is raised while swirling to enter the inner cylinder. What is claimed is: 1. A hermetic screw compressor characterized in that the compressor is configured such that the air flows into the air, passes through a motor, and is discharged from the lower part of an upper body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15429983A JPS6047893A (en) | 1983-08-24 | 1983-08-24 | Enclosed type screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15429983A JPS6047893A (en) | 1983-08-24 | 1983-08-24 | Enclosed type screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6047893A true JPS6047893A (en) | 1985-03-15 |
Family
ID=15581092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15429983A Pending JPS6047893A (en) | 1983-08-24 | 1983-08-24 | Enclosed type screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047893A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020761A1 (en) * | 1998-10-06 | 2000-04-13 | Bitzer Kühlmaschinenbau Gmbh | Screw-type compressor |
| WO2002044562A3 (en) * | 2000-12-01 | 2002-09-26 | Bristol Compressors | Hermetic compressor |
| CN102235362A (en) * | 2010-04-26 | 2011-11-09 | 上海维尔泰克螺杆机械有限公司 | Jacketed wall constructed oil separation cylinder |
| WO2016157447A1 (en) * | 2015-03-31 | 2016-10-06 | 株式会社日立産機システム | Screw compressor |
-
1983
- 1983-08-24 JP JP15429983A patent/JPS6047893A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000020761A1 (en) * | 1998-10-06 | 2000-04-13 | Bitzer Kühlmaschinenbau Gmbh | Screw-type compressor |
| WO2002044562A3 (en) * | 2000-12-01 | 2002-09-26 | Bristol Compressors | Hermetic compressor |
| US6499971B2 (en) | 2000-12-01 | 2002-12-31 | Bristol Compressors, Inc. | Compressor utilizing shell with low pressure side motor and high pressure side oil sump |
| CN1308595C (en) * | 2000-12-01 | 2007-04-04 | 布里斯托尔压缩机公司 | Hermetic compressor |
| CN102235362A (en) * | 2010-04-26 | 2011-11-09 | 上海维尔泰克螺杆机械有限公司 | Jacketed wall constructed oil separation cylinder |
| WO2016157447A1 (en) * | 2015-03-31 | 2016-10-06 | 株式会社日立産機システム | Screw compressor |
| CN107429697A (en) * | 2015-03-31 | 2017-12-01 | 株式会社日立产机*** | Feed flow formula helical-lobe compressor |
| US10514037B2 (en) | 2015-03-31 | 2019-12-24 | Hitachi Industrial Equipment Systems Co., Ltd. | Liquid feeding type screw compressor |
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