JP2022500592A - 軸スラストが最適化される多段ポンプ - Google Patents
軸スラストが最適化される多段ポンプ Download PDFInfo
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- JP2022500592A JP2022500592A JP2021517382A JP2021517382A JP2022500592A JP 2022500592 A JP2022500592 A JP 2022500592A JP 2021517382 A JP2021517382 A JP 2021517382A JP 2021517382 A JP2021517382 A JP 2021517382A JP 2022500592 A JP2022500592 A JP 2022500592A
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- Prior art keywords
- pump
- gap
- pressure
- multistage
- flow rate
- Prior art date
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- Pending
Links
- 238000005457 optimization Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004605 External Lubricant Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0022—Control, e.g. regulation, of pumps, pumping installations or systems by using valves throttling valves or valves varying the pump inlet opening or the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
- F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0033—By-passing by increasing clearance between impeller and its casing
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- 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
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0416—Axial thrust balancing balancing pistons
-
- 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
- F05D2210/00—Working fluids
- F05D2210/10—Kind or type
- F05D2210/11—Kind or type liquid, i.e. incompressible
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims (12)
- 軸スラストが最適化される多段ポンプ(100)であって、
ポンプ吐出ノズル(101)と、
前記ポンプ吐出ノズル(101)に接続されたバイパスシステム(102)と、
を含み、
前記バイパスシステム(102)は、
前記ポンプ吐出ノズル(101)に作動的に結合されたスロットルバルブ(104)と、
前記多段ポンプ(100)内に設けられ、前記スロットルバルブ(104)と隙間(「Se」)とに接続されたバイパスライン(106)と、
を含み、
前記隙間(「Se」)は、軸スラストの最適化のために前記隙間(「Se」)内の圧力を上昇させるため、前記バイパスライン(106)を流れるバランス流を受容するように構成されている、
多段ポンプ(100)。 - 前記スロットルバルブ(104)は、手動、自動又は半自動で作動可能である、請求項1に記載の多段ポンプ(100)。
- 前記スロットルバルブ(104)は、所望の部分負荷流量で作動し、前記隙間(「Se」)の圧力が残留軸スラストの減少につながる所定の算定値まで上昇する、請求項1に記載の多段ポンプ(100)。
- 前記多段ポンプ(100)が減摩軸受を用いたCHTR 4/1 +6ポンプである、請求項1に記載の多段ポンプ(100)。
- 前記隙間(「Se」)内の圧力は、最小流量の60m3/hrで24barである、請求項1に記載の多段ポンプ(100)。
- 前記バイパスライン(106)の前記スロットルバルブ(104)は、前記隙間(「Se」)内の圧力が所定の算定値である40barに上昇するまで段階的に作動する、請求項1に記載の多段ポンプ(100)。
- 軸スラストが最適化される多段ポンプ(500)であって、
軸スラストを最適化するように構成されたバイパスシステム(502)を含み、
前記バイパスシステム(502)は、
隙間(「Se」)に近接して設けられたスロットルブッシュ(504)を含み、
前記スロットルブッシュ(504)は、前記バイパスライン(506)を画定し、前記隙間(「Se」)は、軸スラストの最適化のために前記隙間(「Se」)の圧力を上昇させるため、前記バイパスライン(506)を流れるバランス流を受容するように構成されている、
多段ポンプ(500)。 - 前記スロットルブッシュ(504)は、前記バイパスライン(506)の前記隙間(「Se」)に近接する一端側に配置された流量制御装置(508)と、前記バイパスライン(506)の前記流量制御装置(508)とは反対の他端側に配置されたオリフィスプレート(510)とを含む、請求項7に記載の多段ポンプ(500)。
- 前記流量制御装置(508)は、ばね付勢式の装置である、請求項8に記載の多段ポンプ(500)。
- 前記流量制御装置(508)は、部分負荷状態で作動するように構成されている、請求項8に記載の多段ポンプ(500)。
- 前記オリフィスプレート(510)は、吐出圧力を低下させるとともに、前記隙間(「Se」)の圧力を所定の算定値まで上昇させるように構成されている、請求項8に記載の多段ポンプ(500)。
- 前記流量制御装置(508)は、前記圧力が前記所定の算定値で作動し、前記多段ポンプ(500)が最適効率/定格流量で運転しているときは作動しない、請求項11に記載の多段ポンプ(500)。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN201821036447 | 2018-09-27 | ||
IN201821036447 | 2018-09-27 | ||
PCT/IN2019/050705 WO2020065674A1 (en) | 2018-09-27 | 2019-09-26 | A multistage pump with axial thrust optimization |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2022500592A true JP2022500592A (ja) | 2022-01-04 |
Family
ID=68165686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021517382A Pending JP2022500592A (ja) | 2018-09-27 | 2019-09-26 | 軸スラストが最適化される多段ポンプ |
Country Status (8)
Country | Link |
---|---|
US (1) | US11549512B2 (ja) |
EP (1) | EP3857072B1 (ja) |
JP (1) | JP2022500592A (ja) |
KR (1) | KR20210065172A (ja) |
CN (1) | CN113227583B (ja) |
BR (1) | BR112021005957A8 (ja) |
SA (1) | SA521421596B1 (ja) |
WO (1) | WO2020065674A1 (ja) |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US971851A (en) * | 1905-11-28 | 1910-10-04 | Ferdinand W Krogh | Centrifugal pump. |
GB191005848A (en) * | 1909-03-12 | 1910-07-21 | Hans James Schwade | Improvements in or relating to Centrifugal Pumps. |
GB190916373A (en) * | 1909-07-13 | 1910-07-07 | Emil Schauffelberger | Improvements in and relating to Means for Balancing the End-thrust on the Rotor in Rotary Pumps, Blowers, Compressors and the like. |
FR478437A (fr) | 1914-04-17 | 1915-12-10 | The United States Light And Heating Company | Perfectionnements aux collecteurs pour machines électriques |
GB191516373A (en) | 1915-11-20 | 1916-11-02 | Stanley Parsons | Improvements in Hand Operated Trucks for the Lifting and Transport of Goods. |
DE933849C (de) * | 1952-02-10 | 1955-10-06 | Klein | Einrichtung zum Schutze von Kreiselpumpen mit hydraulischer Achsschubentlastung durch Regelung der in den Zulaufbehaelter rueckgefuehrten Entlastungsfluessigkeitsmenge |
US3464440A (en) * | 1966-03-18 | 1969-09-02 | Schroeder & Co H | Method and apparatus for protecting a pump from flow rate overloads |
GB1211243A (en) * | 1966-11-12 | 1970-11-04 | Zabranska Fabryka Masz Gornicz | Axial balancing arrangement in a rotodynamic pump |
JPS5810195A (ja) * | 1981-07-10 | 1983-01-20 | Hitachi Ltd | 軸推力平衡装置 |
CH669241A5 (de) | 1985-11-27 | 1989-02-28 | Sulzer Ag | Axialschub-ausgleichsvorrichtung fuer fluessigkeitspumpe. |
US4740137A (en) * | 1986-11-17 | 1988-04-26 | Dresser Industries, Inc. | Method and apparatus for improving the efficiency of centrifugal pumps |
US5591016A (en) * | 1994-11-30 | 1997-01-07 | Nikkiso Co., Ltd. | Multistage canned motor pump having a thrust balancing disk |
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 |
US7108569B2 (en) | 2003-03-19 | 2006-09-19 | Cornell Donald E | Axial flow pump or marine propulsion device |
JP4352903B2 (ja) * | 2004-01-15 | 2009-10-28 | 株式会社日立プラントテクノロジー | 一軸多段ポンプ |
CN100455824C (zh) * | 2005-01-30 | 2009-01-28 | 陆雄 | 动态调控用平衡鼓平衡轴向力的多级离心泵轴向力的方法 |
US8016545B2 (en) * | 2006-06-14 | 2011-09-13 | Fluid Equipment Development Company, Llc | Thrust balancing in a centrifugal pump |
US20090004032A1 (en) * | 2007-03-29 | 2009-01-01 | Ebara International Corporation | Deswirl mechanisms and roller bearings in an axial thrust equalization mechanism for liquid cryogenic turbomachinery |
US10178723B2 (en) | 2011-06-03 | 2019-01-08 | Cree, Inc. | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
-
2019
- 2019-09-26 BR BR112021005957A patent/BR112021005957A8/pt unknown
- 2019-09-26 KR KR1020217012737A patent/KR20210065172A/ko not_active Application Discontinuation
- 2019-09-26 EP EP19783735.4A patent/EP3857072B1/en active Active
- 2019-09-26 CN CN201980077920.4A patent/CN113227583B/zh active Active
- 2019-09-26 US US17/280,515 patent/US11549512B2/en active Active
- 2019-09-26 JP JP2021517382A patent/JP2022500592A/ja active Pending
- 2019-09-26 WO PCT/IN2019/050705 patent/WO2020065674A1/en unknown
-
2021
- 2021-03-28 SA SA521421596A patent/SA521421596B1/ar unknown
Also Published As
Publication number | Publication date |
---|---|
EP3857072A1 (en) | 2021-08-04 |
CN113227583B (zh) | 2023-08-08 |
EP3857072B1 (en) | 2024-01-03 |
BR112021005957A8 (pt) | 2023-11-21 |
EP3857072C0 (en) | 2024-01-03 |
BR112021005957A2 (pt) | 2021-06-29 |
CN113227583A (zh) | 2021-08-06 |
SA521421596B1 (ar) | 2023-01-31 |
US20220042513A1 (en) | 2022-02-10 |
WO2020065674A1 (en) | 2020-04-02 |
US11549512B2 (en) | 2023-01-10 |
KR20210065172A (ko) | 2021-06-03 |
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