JPS60184984A - Screw compressor - Google Patents

Screw compressor

Info

Publication number
JPS60184984A
JPS60184984A JP1417585A JP1417585A JPS60184984A JP S60184984 A JPS60184984 A JP S60184984A JP 1417585 A JP1417585 A JP 1417585A JP 1417585 A JP1417585 A JP 1417585A JP S60184984 A JPS60184984 A JP S60184984A
Authority
JP
Japan
Prior art keywords
oil
main casing
screw compressor
oil separator
pressure
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
JP1417585A
Other languages
Japanese (ja)
Other versions
JPH0526039B2 (en
Inventor
Kimio Nagata
永田　公雄
Shigekazu Nozawa
野沢　重和
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1417585A priority Critical patent/JPS60184984A/en
Publication of JPS60184984A publication Critical patent/JPS60184984A/en
Publication of JPH0526039B2 publication Critical patent/JPH0526039B2/ja
Granted legal-status Critical Current

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
    • 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)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE:To heighten separation efficiency in an oil separator, by partitioning a main casing into a high-pressure part and a low-pressure part, and forming the high-pressure part in a lower part of the main casing while the oil separator and an oil tank part in the high-pressure part, respectively. CONSTITUTION:This screw compressor partitions the lower part of a main casing 4 into both low and high pressure side parts, while an oil tank 8 is formed in the high-pressure side, and thereby the oil separated by a demister 6 is made so as to be collected in the said oil tank, not in the lower part of an oil separator 5. Accordingly, an effective passing area of the demister limited by oil accumulation due to discharge gas is yet more increased, thus oil separating efficiency is improved.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はスクリュー圧縮機の圧縮部分と、オイルセパレ
ータを一体にしてなるスクリュー圧縮機に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a screw compressor in which a compression portion of the screw compressor and an oil separator are integrated.

〔発明の背景〕[Background of the invention]

本発明に、最も近い、従来技術のスクリュー圧縮機を、
第１図に示す。吸入口１より吸入された低圧ガスは、モ
ータ２を通過冷却し、ロータ３に、吸入される。吸入さ
れたガスはロータおよびメインケーシング４によって形
成する空間の体積、変化により高圧ガスとなる。この際
、ロータの潤滑および冷却のため、多量の油を噴射する
。したがって高圧ガスの中には、多量の油が含まれる。The prior art screw compressor closest to the present invention is
Shown in Figure 1. The low-pressure gas sucked through the suction port 1 passes through the motor 2 to be cooled, and is sucked into the rotor 3. The inhaled gas becomes high-pressure gas due to changes in the volume of the space formed by the rotor and the main casing 4. At this time, a large amount of oil is injected to lubricate and cool the rotor. Therefore, high pressure gas contains a large amount of oil.

この油を回収する目的のため、オイルセパレータ５を設
け、デミスタ６により油とガスに分離し、油はオイルセ
パレータ下部に溜まりふたたびロータ間へ噴射するサイ
クルを形成する。ガスは吐出ロアより吐出する。ここで
、オイルセパレータ下部に溜まった油は、吐出ガスが通
過する際、溜まった油の分だけデミスタの有効通過面積
が減少する。これは、オイルセパレータの分離効率を低
下し、油の回収が十分に出来ずに、安定した油サイクル
が形成できない。このため、この減少分だけ大きいオイ
ルセパレータを設ける必要があり、コンパクトで、高性
能なオイルセパレータを有するスクリュー圧縮機が得ら
れない欠点を有する。For the purpose of recovering this oil, an oil separator 5 is provided, and a demister 6 separates oil and gas, forming a cycle in which the oil accumulates at the bottom of the oil separator and is again injected between the rotors. Gas is discharged from the discharge lower. Here, when the discharge gas passes through the oil accumulated in the lower part of the oil separator, the effective passage area of the demister is reduced by the accumulated oil. This reduces the separation efficiency of the oil separator, making it impossible to recover oil sufficiently and making it impossible to form a stable oil cycle. Therefore, it is necessary to provide an oil separator that is larger by this reduction, which has the disadvantage that a screw compressor having a compact and high-performance oil separator cannot be obtained.

〔発明の目的〕[Purpose of the invention]

本発明はオイルセパレータの下部に溜まる油をメインケ
ーシング下部に移し、分離した油による、オイルセパレ
ータの分離効率低下を防ぎ、コンパクトなオイルセパレ
ータを有するスクリュー圧縮機を得ることを目的とする
ものである。The object of the present invention is to move the oil accumulated in the lower part of the oil separator to the lower part of the main casing, to prevent the separation efficiency of the oil separator from decreasing due to the separated oil, and to obtain a screw compressor having a compact oil separator. .

〔発明の概要〕[Summary of the invention]

このため、メインケーシングの下部を低圧側と高圧側の
室に区画し、高圧側の室をオイルタンクとする。したが
ってオイルセパレータ下部には、分離した油は溜まらず
、分離効率の低下とならない構造である。For this reason, the lower part of the main casing is divided into a low-pressure side chamber and a high-pressure side chamber, and the high-pressure side chamber is used as an oil tank. Therefore, the structure is such that separated oil does not accumulate in the lower part of the oil separator and does not reduce separation efficiency.

〔発明の実施例〕[Embodiments of the invention]

本発明のスクリュー圧縮機を第２図に示す。従来技術で
のべたように、吸入されたガスと、分離された油のサイ
クルは同様である。The screw compressor of the present invention is shown in FIG. As mentioned in the prior art, the cycle of inhaled gas and separated oil is similar.

本発明は、メインケーシング４の下部を、低圧側と高圧
側に区画し、高圧側をオイルタンク８とし、デミスタ６
によって分離した油は、オイルセパレータ５の下部には
溜まらず、オイルタンクに溜まる。In the present invention, the lower part of the main casing 4 is divided into a low pressure side and a high pressure side, the high pressure side is used as an oil tank 8, and a demister 6
The separated oil does not accumulate in the lower part of the oil separator 5, but instead accumulates in the oil tank.

〔発明の効果〕 したがって、分離した油によるデミスタの有効通過面積
を減少することなく、コンパクトで高性能なオイルセパ
レータを有するスクリュー圧縮機が得られた。[Effects of the Invention] Therefore, a screw compressor having a compact and high-performance oil separator was obtained without reducing the effective passage area of the demister due to separated oil.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、従来技術におけるスクリュー圧縮機Ｏ縦断面
図を示す。第２図は、本発明におけるスクリュー圧縮機
の縦断面図を示す。 １・・・吸入口　２・・・モータ　３・・・ロータ　４
・・・メインケーシング　５・・・オイＩレセパレータ
　６・・・デミスタ　７・・・吐出口　８・・・オイル
タンク代理人　弁理士　小　川　勝　男FIG. 1 shows a longitudinal sectional view of a screw compressor O in the prior art. FIG. 2 shows a longitudinal sectional view of the screw compressor according to the present invention. 1... Suction port 2... Motor 3... Rotor 4
... Main casing 5 ... Oil I receptacle separator 6 ... Demister 7 ... Discharge port 8 ... Oil tank agent Patent attorney Katsuo Ogawa

Claims (1)

【特許請求の範囲】[Claims] メインケーシングを高圧部と低圧部に区画し、高圧部を
、メインケーシング下部に設けると共に該高圧部にオイ
ルセパレータ、およびオイルタンク部を形成したことを
特徴とするスクリュー圧縮機。A screw compressor characterized in that a main casing is divided into a high-pressure part and a low-pressure part, the high-pressure part is provided at a lower part of the main casing, and an oil separator and an oil tank part are formed in the high-pressure part.
JP1417585A 1985-01-30 1985-01-30 Screw compressor Granted JPS60184984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1417585A JPS60184984A (en) 1985-01-30 1985-01-30 Screw compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1417585A JPS60184984A (en) 1985-01-30 1985-01-30 Screw compressor

Publications (2)

Publication Number Publication Date
JPS60184984A true JPS60184984A (en) 1985-09-20
JPH0526039B2 JPH0526039B2 (en) 1993-04-14

Family

ID=11853805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1417585A Granted JPS60184984A (en) 1985-01-30 1985-01-30 Screw compressor

Country Status (1)

Country Link
JP (1) JPS60184984A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008102698A1 (en) * 2007-02-20 2008-08-28 Calsonic Kansei Corporation Electric compressor
CN102748284A (en) * 2012-04-11 2012-10-24 无锡市制冷设备厂有限责任公司 Screw compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530767Y1 (en) * 1967-09-07 1970-11-25
JPS5417210U (en) * 1977-07-07 1979-02-03
JPS5434923A (en) * 1977-08-23 1979-03-14 Citizen Watch Co Ltd Intermittently started flying printer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152017A (en) * 1976-06-11 1977-12-17 Aisin Seiki Co Ltd Hydraulic stabilizer for vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4530767Y1 (en) * 1967-09-07 1970-11-25
JPS5417210U (en) * 1977-07-07 1979-02-03
JPS5434923A (en) * 1977-08-23 1979-03-14 Citizen Watch Co Ltd Intermittently started flying printer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008102698A1 (en) * 2007-02-20 2008-08-28 Calsonic Kansei Corporation Electric compressor
CN102748284A (en) * 2012-04-11 2012-10-24 无锡市制冷设备厂有限责任公司 Screw compressor

Also Published As

Publication number Publication date
JPH0526039B2 (en) 1993-04-14

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term