CN101307768A - 采用分流叶片的离心式压缩机回流通道 - Google Patents

采用分流叶片的离心式压缩机回流通道 Download PDF

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Publication number
CN101307768A
CN101307768A CNA2008100994740A CN200810099474A CN101307768A CN 101307768 A CN101307768 A CN 101307768A CN A2008100994740 A CNA2008100994740 A CN A2008100994740A CN 200810099474 A CN200810099474 A CN 200810099474A CN 101307768 A CN101307768 A CN 101307768A
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reflux section
flow blades
flow
splitterr vanes
centrifugal compressor
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J·克鲁克香克
S·谢
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General Electric Co
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General Electric Co
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/70—Shape

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

本发明涉及采用分流叶片的离心式压缩机回流通道，具体而言，多级离心式压缩机中的回流段包括多个周向定位的流动叶片(12)和多个设置在流动叶片(12)之间的分流叶片(14)。分流叶片(14)用来尽量减小或消除反向或分离流动区，从而导致改善的压缩机性能。

Description

采用分流叶片的离心式压缩机回流通道
技术领域
本发明涉及离心式压缩机，更具体地，涉及多级离心式压缩机中的结构，其用来尽量减小或消除反向或分离流动区，从而改善压缩机性能。
背景技术
多级离心式压缩机中的回流通道通常由多个具有相似几何形状的类似的叶片或翼面构成。对于某些流动状态而言，需要这些叶片显著地改变流动，从而可能在回流叶片中产生流动分离并降低压缩机性能。
在低流动系数的多级压缩机设计中，进入回流叶片的流动角因流动的高切向分量而可能很小。但不管怎样，叶片必须在流动进入下一级(following stage)之前消除速度的切向分量。扩散比也倾向于为低的扩散比。
切向或旋转分量的消除因而必须在相对短的距离上发生。由于高的切向分量，这导致在极短距离上将流动从主要为切向流动转变成径向流动。这些要求可导致流动分离和性能下降。
发明内容
在示范性实施例中，多级离心式压缩机中的回流段包括多个周向定位的流动叶片，和多个设置在流动叶片之间的分流叶片。
在另一个示范性实施例中，多级离心式压缩机中的回流段包括多个周向定位的流动叶片，和置入在各流动叶片之间的流动修正结构，该流动修正结构用来尽量减小反向或分离流动区。
在又一个示范性实施例中，多级离心式压缩机中的回流段包括多个周向定位的成翼面形状的流动叶片，和置入在流动叶片之间的多个成翼面形状的分流叶片，该分流叶片具有不同于流动叶片的几何形状，并用来尽量减小反向或分离流动区。
附图说明
图1示出了包括常规回流叶片的多级离心式压缩机中的回流段；
图2示出了包括分流叶片的回流段；
图3和图4为平均速度(meridional velocity)曲线，其示出了常规设计和含分流叶片设计之间的对比；和
图5和图6分别为对于常规设计和含分流叶片的设计，回流叶片下一级入口处的平均速度边缘曲线。
部件列表
流动叶片  12
分流叶片  14
具体实施方式
图1示出了多级离心式压缩机中包括常规回流叶片RV的回流段。在典型设计中，回流段包括若干个(例如十五个左右)周向定位的流动叶片RV。参考上文所述的背景技术，所希望的是通过消除或尽量减小分离流动区而改善压缩机性能，从而改善多级压缩机的性能。
参照图2，在示范性实施例中，在各流动叶片之间置入了流动修正结构，这些结构用来更好地控制流动转向和尽量减小反向或分离流动区。回流段包括多个周向定位的流动叶片12，且流动修正结构包括多个设置在流动叶片12之间的分流叶片14。分流叶片14优选但不必形成为具有不同于流动叶片12的几何形状，并且设置在流动叶片12之间的交替位置内。叶片12、14的数目以及相应的几何形状选择和分析成用以确保尽量减小或消除回流段中的流动分离区。在一个示范性优选实施例中，回流段包括十三个流动叶片12和十三个分流叶片14。
参照图3至图6，已执行了计算流体动力学运算来验证该结构对比常规方法实现了改善。图3示出了叶片表面上不存在分流器的平均速度曲线。在叶片的上表面上明显可见分离泡(separation bubble)。参照图4，分流器的插入几乎完全地消除了该分离泡并因而消除了不稳定性和性能差的潜在源。
图5示出了接近不带有分流器的下一级叶轮的平均速度边缘曲线。图6具有分流器。图6示出了接近下一级的流动均匀得多，是良好性能所需要的特征。
根据各曲线的比较，表明与标准设计相比，分流叶片14已产生了尽量减小的再循环。而且，在下一级叶轮入口处的速度分布更为均匀。回流叶片出口处的流动角运算(质量平均)表明，带有分流器的回流叶片比标准回流叶片提供了大约多5°的流动转向。因此，尽量减小或消除了反向或分离流动区，从而改善了压缩机性能。
尽管本发明已结合目前所考虑到的最实际的优选实施例进行了描述，但应理解的是，本发明并不限于所公开的实施例，相反地其意欲涵盖包括在所附权利要求精神和范围内的各种修改和等同装置。

Claims (10)

1.一种多级离心式压缩机中的回流段，所述回流段包括：
多个周向定位的流动叶片(12)；和
多个设置在所述流动叶片(12)之间的分流叶片(14)。
2.根据权利要求1所述的回流段，其特征在于，所述流动叶片(12)包括翼面形状。
3.根据权利要求1所述的回流段，其特征在于，所述分流叶片(14)包括不同于所述流动叶片(12)的几何形状。
4.根据权利要求3所述的回流段，其特征在于，所述分流叶片(14)比所述流动叶片(12)短。
5.根据权利要求1所述的回流段，其特征在于，所述分流叶片(14)的数量和几何形状选择成用以尽量减小流动分离区。
6.根据权利要求5所述的回流段，其特征在于，所述回流段包括十三个流动叶片(12)和十三个分流叶片(14)。
7.根据权利要求1所述的回流段，其特征在于，所述流动叶片(12)和所述分流叶片(14)交替地设置。
8.一种多级离心式压缩机中的回流段，所述回流段包括：
多个周向定位的流动叶片(12)；和
置入在各所述流动叶片(12)之间的流动修正结构，所述流动修正结构用来尽量减小反向或分离流动区。
9.根据权利要求8所述的回流段，其特征在于，所述流动修正结构包括多个分流叶片(14)，所述分流叶片(14)分别置入在所述流动叶片(12)之间。
10.一种多级离心式压缩机中的回流段，所述回流段包括：
多个周向定位的成翼面形状的流动叶片(12)；和
多个置入在所述流动叶片(12)之间的成翼面形状的分流叶片(14)，所述分流叶片(14)具有不同于所述流动叶片(12)的几何形状，并用来尽量减小反向或分离流动区。
CNA2008100994740A 2007-05-17 2008-05-14 采用分流叶片的离心式压缩机回流通道 Pending CN101307768A (zh)

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US11/750050 2007-05-17
US11/750,050 US7905703B2 (en) 2007-05-17 2007-05-17 Centrifugal compressor return passages using splitter vanes

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JP (1) JP2008286198A (zh)
CN (1) CN101307768A (zh)
CH (1) CH704102B1 (zh)
DE (1) DE102008024887A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103775389A (zh) * 2014-01-09 2014-05-07 浙江工业大学 节段式多级泵用径向导叶
CN103883561A (zh) * 2014-02-25 2014-06-25 江苏大学 一种余热排出泵的径向式导叶
CN104500454A (zh) * 2014-12-25 2015-04-08 珠海格力电器股份有限公司 一种回流器及离心式压缩机
CN103168175B (zh) * 2010-10-18 2016-01-06 株式会社日立制作所 多级离心压缩机及其返回通道
CN105370626A (zh) * 2014-08-07 2016-03-02 重庆美的通用制冷设备有限公司 用于离心压缩机的回流器及具有其的离心压缩机

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2927670B1 (fr) * 2008-02-15 2010-03-19 Alstom Hydro France Roue pour machine hydraulique, machine hydraulique comprenant une telle roue et installation de conversion d'energie equipee d'une telle machine hydraulique.
US20110194936A1 (en) * 2008-09-29 2011-08-11 Bender Andrew L High efficiency turbine
US9784283B2 (en) * 2014-06-06 2017-10-10 Baker Hughes Incorporated Diffuser vanes with pockets for submersible well pump
JP6417771B2 (ja) * 2014-07-31 2018-11-07 日本電産株式会社 電動送風機
WO2016120316A1 (en) * 2015-01-28 2016-08-04 Nuovo Pignone Tecnologie Srl Device for controlling the flow in a turbomachine, turbomachine and method
US10605263B2 (en) 2015-02-17 2020-03-31 Dresser-Rand Company Internally-cooled compressor diaphragm
KR102083168B1 (ko) * 2017-11-07 2020-03-02 주식회사 에어로네트 주 날개 및 보조 날개를 구비한 임펠러
US11953024B1 (en) * 2022-10-26 2024-04-09 Halliburton Energy Services, Inc. Centrifugal pump stage diffuser

Family Cites Families (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373713A (en) * 1942-05-20 1945-04-17 Gen Electric Centrifugal compressor
US3039736A (en) * 1954-08-30 1962-06-19 Pon Lemuel Secondary flow control in fluid deflecting passages
US3017837A (en) * 1959-02-17 1962-01-23 Thomas E Judd Multi stage centrifugal pump
US3184152A (en) * 1959-07-06 1965-05-18 Commissariat Energie Atomique Supersonic compressors
US3644055A (en) * 1969-10-02 1972-02-22 Ingersoll Rand Co Fluid-motion apparatus
SE382342B (sv) * 1973-06-18 1976-01-26 United Turbine Ab & Co Avloppsdiffusor for centrifugalkompressor
US3936223A (en) * 1974-09-23 1976-02-03 General Motors Corporation Compressor diffuser
US4012166A (en) * 1974-12-04 1977-03-15 Deere & Company Supersonic shock wave compressor diffuser with circular arc channels
US4027997A (en) * 1975-12-10 1977-06-07 General Electric Company Diffuser for a centrifugal compressor
US4100732A (en) * 1976-12-02 1978-07-18 General Electric Company Centrifugal compressor advanced dump diffuser
JPS55144896U (zh) * 1979-04-06 1980-10-17
US4302150A (en) * 1979-05-11 1981-11-24 The Garrett Corporation Centrifugal compressor with diffuser
JPS5677598A (en) * 1979-11-30 1981-06-25 Nissan Motor Co Ltd Variable-position diffuser for centrifugal compressor
US4349314A (en) * 1980-05-19 1982-09-14 The Garrett Corporation Compressor diffuser and method
US4770605A (en) * 1981-02-16 1988-09-13 Mitsubishi Jukogyo Kabushiki Kaisha Diffuser device in a centrifugal compressor and method for manufacturing the same
US4431374A (en) * 1981-02-23 1984-02-14 Teledyne Industries, Inc. Vortex controlled radial diffuser for centrifugal compressor
US4695224A (en) * 1982-01-04 1987-09-22 General Electric Company Centrifugal compressor with injection of a vaporizable liquid
US4538410A (en) * 1982-07-07 1985-09-03 A/S Kongsberg Vapenfabrikk Compressor diffuser non-return valve and method for starting gas turbine engines
US4573868A (en) * 1982-11-04 1986-03-04 A/S Kongsberg Vapenfabrikk High area ratio, variable entrance geometry compressor diffuser
US4549847A (en) * 1982-11-04 1985-10-29 A.S. Kongsberg Vapenfabrikk High area ratio, variable entrance geometry compressor diffuser
US4642026A (en) * 1983-07-26 1987-02-10 Ruff John D Centrifugal compressor with adjustable diffuser
US4579509A (en) * 1983-09-22 1986-04-01 Dresser Industries, Inc. Diffuser construction for a centrifugal compressor
US4576550A (en) * 1983-12-02 1986-03-18 General Electric Company Diffuser for a centrifugal compressor
US4844690A (en) * 1985-01-24 1989-07-04 Carrier Corporation Diffuser vane seal for a centrifugal compressor
US4737071A (en) * 1985-04-22 1988-04-12 Williams International Corporation Variable geometry centrifugal compressor diffuser
US4854126A (en) * 1985-04-29 1989-08-08 Teledyne Industries, Inc. Centrifugal compressor diffuser system and method of making same
US4611969A (en) * 1985-08-19 1986-09-16 Carrier Corporation Calibrating apparatus and method for a movable diffuser wall in a centrifugal compressor
US4629403A (en) * 1985-10-25 1986-12-16 Tecumseh Products Company Rotary compressor with vane slot pressure groove
DE3542762A1 (de) * 1985-12-04 1987-06-11 Mtu Muenchen Gmbh Einrichtung zur steuerung oder regelung von gasturbinentriebwerken bzw. gasturbinenstrahltriebwerken
US4815935A (en) * 1987-04-29 1989-03-28 General Motors Corporation Centrifugal compressor with aerodynamically variable geometry diffuser
DE3882463T2 (de) 1987-09-01 1993-11-11 Hitachi Ltd Diffusor für Zentrifugalverdichter.
US4859145A (en) * 1987-10-19 1989-08-22 Sundstrand Corporation Compressor with supercritical diffuser
US4877373A (en) * 1988-02-08 1989-10-31 Dresser-Rand Company Vaned diffuser with small straightening vanes
JPH01219397A (ja) * 1988-02-26 1989-09-01 Hitachi Ltd 遠心圧縮機のディフューザ
JPH01318790A (ja) * 1988-06-17 1989-12-25 Hitachi Ltd 多段ポンプの水返し羽根
US4900225A (en) * 1989-03-08 1990-02-13 Union Carbide Corporation Centrifugal compressor having hybrid diffuser and excess area diffusing volute
JP2751418B2 (ja) * 1989-06-13 1998-05-18 ダイキン工業株式会社 ターボ圧縮機のディフューザ
US5178516A (en) * 1990-10-02 1993-01-12 Hitachi, Ltd. Centrifugal compressor
US5266002A (en) * 1990-10-30 1993-11-30 Carrier Corporation Centrifugal compressor with pipe diffuser and collector
JP2746783B2 (ja) * 1990-10-30 1998-05-06 キャリア コーポレイション 遠心圧縮機
JP2743658B2 (ja) 1991-10-21 1998-04-22 株式会社日立製作所 遠心圧縮機
US5342183A (en) * 1992-07-13 1994-08-30 Copeland Corporation Scroll compressor with discharge diffuser
US5316441A (en) * 1993-02-03 1994-05-31 Dresser-Rand Company Multi-row rib diffuser
JP3110205B2 (ja) * 1993-04-28 2000-11-20 株式会社日立製作所 遠心圧縮機及び羽根付ディフューザ
US5387081A (en) * 1993-12-09 1995-02-07 Pratt & Whitney Canada, Inc. Compressor diffuser
JP3153409B2 (ja) * 1994-03-18 2001-04-09 株式会社日立製作所 遠心圧縮機の製作方法
CA2133793A1 (en) * 1994-10-06 1996-04-07 William E. Carscallen Inter compressor duct variable geometry annular diffuser/bleed valve
DE19548852A1 (de) 1995-12-27 1997-07-03 Asea Brown Boveri Radialverdichter für Abgasturbolader
EP0886070B1 (en) * 1996-03-06 2003-05-28 Hitachi, Ltd. Centrifugal compressor and diffuser for the centrifugal compressor
US5807071A (en) * 1996-06-07 1998-09-15 Brasz; Joost J. Variable pipe diffuser for centrifugal compressor
JP3569087B2 (ja) * 1996-11-05 2004-09-22 株式会社日立製作所 多段遠心圧縮機
DE19814627C2 (de) * 1998-04-01 2001-02-22 Man Turbomasch Ag Ghh Borsig Kühlluftentnahme aus dem Diffusorteil eines Kompressors einer Gasturbine
DE19817705C2 (de) * 1998-04-21 2001-02-15 Man Turbomasch Ag Ghh Borsig Kühlluftentnahme aus dem Diffusorteil eines Kompressors einer Gasturbine
US6129511A (en) * 1998-10-27 2000-10-10 Carrier Corporation Method and apparatus for controlling interaction between variable guide vanes and variable diffuser of a centrifugal compressor
US6220234B1 (en) * 1999-03-04 2001-04-24 Cummins Engine Company Coated compressor diffuser
US6200094B1 (en) * 1999-06-18 2001-03-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wave augmented diffuser for centrifugal compressor
US6382912B1 (en) * 2000-10-05 2002-05-07 The United States Of America As Represented By The Secretary Of The Navy Centrifugal compressor with vaneless diffuser
US6540481B2 (en) * 2001-04-04 2003-04-01 General Electric Company Diffuser for a centrifugal compressor
US6547520B2 (en) * 2001-05-24 2003-04-15 Carrier Corporation Rotating vane diffuser for a centrifugal compressor
US6554569B2 (en) * 2001-08-17 2003-04-29 General Electric Company Compressor outlet guide vane and diffuser assembly
US7101151B2 (en) * 2003-09-24 2006-09-05 General Electric Company Diffuser for centrifugal compressor
JP4281614B2 (ja) * 2004-05-10 2009-06-17 株式会社日立プラントテクノロジー ポンプ装置
JP4707969B2 (ja) * 2004-05-19 2011-06-22 株式会社酉島製作所 多段流体機械

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* Cited by examiner, † Cited by third party
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CN103168175B (zh) * 2010-10-18 2016-01-06 株式会社日立制作所 多级离心压缩机及其返回通道
CN103775389A (zh) * 2014-01-09 2014-05-07 浙江工业大学 节段式多级泵用径向导叶
CN103883561A (zh) * 2014-02-25 2014-06-25 江苏大学 一种余热排出泵的径向式导叶
CN105370626A (zh) * 2014-08-07 2016-03-02 重庆美的通用制冷设备有限公司 用于离心压缩机的回流器及具有其的离心压缩机
CN105370626B (zh) * 2014-08-07 2019-02-19 重庆美的通用制冷设备有限公司 用于离心压缩机的回流器及具有其的离心压缩机
CN104500454A (zh) * 2014-12-25 2015-04-08 珠海格力电器股份有限公司 一种回流器及离心式压缩机

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CH704102B1 (de) 2012-05-31
US20080286095A1 (en) 2008-11-20
JP2008286198A (ja) 2008-11-27
US7905703B2 (en) 2011-03-15
DE102008024887A1 (de) 2008-11-20

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Application publication date: 20081119