EA201992173A1 - Способ и устройство для уменьшения окружного дисбаланса давления в боковой полости рабочего колеса турбомашин - Google Patents
Способ и устройство для уменьшения окружного дисбаланса давления в боковой полости рабочего колеса турбомашинInfo
- Publication number
- EA201992173A1 EA201992173A1 EA201992173A EA201992173A EA201992173A1 EA 201992173 A1 EA201992173 A1 EA 201992173A1 EA 201992173 A EA201992173 A EA 201992173A EA 201992173 A EA201992173 A EA 201992173A EA 201992173 A1 EA201992173 A1 EA 201992173A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- fluid flow
- rotary machine
- cavity
- impeller
- driving wheel
- Prior art date
Links
Classifications
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
-
- 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
-
- 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
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Усовершенствованная роторная машина согласно изобретению может включать в себя ротор 30 с установленным на нем рабочим колесом 20. Между рабочим колесом 20 и корпусом 8 может быть образована боковая полость. Роторная машина может быть дополнительно снабжена кольцевым разделительным диском 112, 122, 132, 142 для разделения потока жидкости в полости на первый поток жидкости между диском и рабочим колесом 20 и второй поток жидкости на другой стороне диска между диском и корпусом 8. В роторной машине согласно изобретению также имеется периферийное кольцевое пространство, образованное на периферии корпуса в полости в месте рядом с периферийной областью кольцевого разделительного диска 112, 122, 132, 142. Важно, что это периферийное кольцевое пространство не имеет ограничений для окружного потока жидкости в нем, чтобы изменить второй поток жидкости в полости, чтобы уменьшить колебания давления и нарушения потока по окружности роторной машины. Это, в свою очередь, улучшает вращательный баланс роторной машины.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762483407P | 2017-04-09 | 2017-04-09 | |
US15/696,230 US10746196B2 (en) | 2017-04-09 | 2017-09-06 | Methods and devices for reducing circumferential pressure imbalances in an impeller side cavity of rotary machines |
PCT/US2018/025052 WO2018191022A1 (en) | 2017-04-09 | 2018-03-29 | Methods and devices for reducing circumferential pressure imbalances in an impeller side cavity of rotary machines |
Publications (3)
Publication Number | Publication Date |
---|---|
EA201992173A1 true EA201992173A1 (ru) | 2020-03-24 |
EA037381B1 EA037381B1 (ru) | 2021-03-23 |
EA037381B9 EA037381B9 (ru) | 2021-06-16 |
Family
ID=63710819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EA201992173A EA037381B9 (ru) | 2017-04-09 | 2018-03-29 | Способ и устройство для уменьшения окружного дисбаланса давления в боковой полости рабочего колеса турбомашин |
Country Status (5)
Country | Link |
---|---|
US (1) | US10746196B2 (ru) |
EP (1) | EP3610157A1 (ru) |
CA (1) | CA3056798A1 (ru) |
EA (1) | EA037381B9 (ru) |
WO (1) | WO2018191022A1 (ru) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10830144B2 (en) | 2016-09-08 | 2020-11-10 | Rolls-Royce North American Technologies Inc. | Gas turbine engine compressor impeller cooling air sinks |
WO2021144942A1 (ja) * | 2020-01-17 | 2021-07-22 | 三菱電機株式会社 | 遠心送風機及び空気調和装置 |
US11525393B2 (en) | 2020-03-19 | 2022-12-13 | Rolls-Royce Corporation | Turbine engine with centrifugal compressor having impeller backplate offtake |
CH717430B1 (de) * | 2020-10-02 | 2021-11-15 | Frideco Ag | Laufrad. |
CN114076103B (zh) * | 2021-05-11 | 2023-11-17 | 中交疏浚技术装备国家工程研究中心有限公司 | 一种离心式泥泵的抗磨设计方法 |
US11773773B1 (en) | 2022-07-26 | 2023-10-03 | Rolls-Royce North American Technologies Inc. | Gas turbine engine centrifugal compressor with impeller load and cooling control |
CN116135381B (zh) * | 2023-04-17 | 2023-10-27 | 安徽省元东立智能制造有限公司 | 用于叶轮的悬空式装夹的数控加工中心及加工方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3364866A (en) * | 1964-08-17 | 1968-01-23 | Teikoku Denki Seisakusho Kk | Device for lubricating pump bearings and balancing axial thrust thereof |
US3589827A (en) * | 1969-08-12 | 1971-06-29 | Sergei Stepanovich Gerasimenko | Centrifugal leakproof fluid pump |
JPS5825876B2 (ja) * | 1980-02-18 | 1983-05-30 | 株式会社日立製作所 | 軸推力平衡装置 |
JPS5872693A (ja) * | 1981-10-28 | 1983-04-30 | Hitachi Ltd | 軸推力平衡装置 |
CH672820A5 (ru) * | 1986-03-21 | 1989-12-29 | Ernst Hauenstein | |
US5106262A (en) * | 1986-11-13 | 1992-04-21 | Oklejas Robert A | Idler disk |
US5320482A (en) * | 1992-09-21 | 1994-06-14 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for reducing axial thrust in centrifugal pumps |
FR2698667B1 (fr) * | 1992-11-30 | 1995-02-17 | Europ Propulsion | Pompe centrifuge à rouet ouvert. |
US6129507A (en) * | 1999-04-30 | 2000-10-10 | Technology Commercialization Corporation | Method and device for reducing axial thrust in rotary machines and a centrifugal pump using same |
US7731476B2 (en) * | 2007-01-30 | 2010-06-08 | Technology Commercialization Corp. | Method and device for reducing axial thrust and radial oscillations and rotary machines using same |
US7775758B2 (en) * | 2007-02-14 | 2010-08-17 | Pratt & Whitney Canada Corp. | Impeller rear cavity thrust adjustor |
US7775763B1 (en) * | 2007-06-21 | 2010-08-17 | Florida Turbine Technologies, Inc. | Centrifugal pump with rotor thrust balancing seal |
FR3008749B1 (fr) * | 2013-07-22 | 2015-08-28 | Snecma | Pompe centrifuge, en particulier pour l'alimentation de moteurs de fusee |
US20170260987A1 (en) * | 2016-03-11 | 2017-09-14 | Daikin Applied Americas Inc. | Centrifugal compressor with casing treatment bypass |
-
2017
- 2017-09-06 US US15/696,230 patent/US10746196B2/en active Active
-
2018
- 2018-03-29 CA CA3056798A patent/CA3056798A1/en active Pending
- 2018-03-29 WO PCT/US2018/025052 patent/WO2018191022A1/en unknown
- 2018-03-29 EA EA201992173A patent/EA037381B9/ru unknown
- 2018-03-29 EP EP18718331.4A patent/EP3610157A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EA037381B9 (ru) | 2021-06-16 |
WO2018191022A1 (en) | 2018-10-18 |
US10746196B2 (en) | 2020-08-18 |
CA3056798A1 (en) | 2018-10-18 |
US20180291928A1 (en) | 2018-10-11 |
EP3610157A1 (en) | 2020-02-19 |
EA037381B1 (ru) | 2021-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TH4A | Publication of the corrected specification to eurasian patent |