CN103228908A - 用于水力发电站的混流式泵 - Google Patents
用于水力发电站的混流式泵 Download PDFInfo
- Publication number
- CN103228908A CN103228908A CN2011800526967A CN201180052696A CN103228908A CN 103228908 A CN103228908 A CN 103228908A CN 2011800526967 A CN2011800526967 A CN 2011800526967A CN 201180052696 A CN201180052696 A CN 201180052696A CN 103228908 A CN103228908 A CN 103228908A
- Authority
- CN
- China
- Prior art keywords
- pump
- vortex generator
- impeller
- reverse vortex
- suction channel
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/04—Blade-carrying members, e.g. rotors for radial-flow machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/02—Machines or engines of reaction type; Parts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
- F03B15/005—Starting, also of pump-turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/10—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines
- F03B3/103—Machines or engines of reaction type; Parts or details peculiar thereto characterised by having means for functioning alternatively as pumps or turbines the same wheel acting as turbine wheel and as pump wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
- F05B2240/13—Stators to collect or cause flow towards or away from turbines
- F05B2240/132—Stators to collect or cause flow towards or away from turbines creating a vortex or tornado effect
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Hydraulic Turbines (AREA)
- Control Of Water Turbines (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
用于水力发电站的混流式泵。本发明涉及一种混流式泵,包括以下特征:叶轮(1);蜗壳(2);抽吸管道(3);在入口中朝向叶轮(1)布置的反向涡旋发生器(7),该反向涡旋发生器在泵起动期间是能激活的,并且在起动之后是能关闭的,并且该反向涡旋发生器产生与叶轮(1)的旋转方向相反地起作用的涡旋。
Description
技术领域
本发明涉及一种用于水力发电站的、用于将水从下游水库泵送到上游水库的混流式泵(Pumpe in Francis-Bauweise)。
背景技术
这种泵具有叶轮、蜗壳以及抽吸管道。
该泵可以是抽水储能电站的组成部分。这种泵在水流从上游水库流向下游水库时作为涡轮机运行。详见WO2010/094887A1。
要按照确定的、视发电站条件而定的参数来设计这种泵,特别是按照确定的输送高度和确定的流量来设计。
这种泵在起动时一再出现问题。这些问题在于:由于水流并不稳定使得这种泵在起动时完全不输送水。
发明人发现了以下信息:
当输送高度超过作为结构的基础的尺寸时便会出现上述问题。例如,当上游水平面特别高,或下游水平面特别低,又或者当这两种情况同时出现时均会出现上述问题。由此,其将输送高度视为特别关键的量值。
发明内容
本发明的目的在于,这样设计一种开头所述类型的泵,使得即使在大输送高度的条件下流动仍保持稳定并且能够实现泵的起动。
该解决方案包括以下内容:
-在朝向泵的入口中设置涡旋发生器;
-特别地,为抽吸管道配置多个导向件,这些导向件布置在抽吸管道的周围并且这些导向件在泵起动期间可进入到被抽吸管道输送的流体中;
-导向件这样设计和布置,即,它们为流体提供与叶轮的旋转相反的涡旋。由此可以使得流体在起动时保持稳定。
如果在起动时通过反向涡旋首先产生了稳定的流体,那么导向件可以重新分离出来。
附图说明
根据附图详细地说明本发明以及现有技术。其中详细示出以下内容:
图1示出作为水力发电站的组成部分的混流式泵的正视图;
图2示出抽吸管道的、在其上连接有叶轮的那个部分的轴向截面示意图;
图3示出在沿III-III的视图中的图2的主题;
图4示意性地示出穿过具有多个液压涡旋发生器的抽吸管道的轴向垂直截面图;
图5示出根据现有技术的、具有流线的抽吸管道。
具体实施方式
图1中所示的混流式泵包括叶轮1,该叶轮被蜗壳2包围。
在叶轮1的上游连接有抽吸管道3。由叶轮1所产生的输送流体被从蜗壳输送到上升管4中。
抽吸管道的输入侧的端部没入到在此没有示出的下游水库中。上升管4的输出侧的端部通入到在此没有示出的上游水库中。
泵由电动机5驱动。叶轮1和电动机5同轴地布置并且通过轴6彼此处于传动连接状态中。
抽吸管道3具有输入部段3.1、弯管3.2以及连接在叶轮1的上游的输出部段3.3。
重要的部件是用于反向于叶轮1产生涡旋的装置。该装置包括多个反向涡旋发生器7。这些反向涡旋发生器布置在抽吸管道的输出部段3.3上。详见图2和3。
如下地构造图2中所示的反向涡旋发生器7:
输出部段3.3的壁在其靠近叶轮的区域中具有凹处3.4。导向件7.1可借助调节装置3.5或多或少地朝向叶轮1的旋转轴1.1移动。导向件可以是叶片状的。
从图3中可以看出,导向件7.1朝向旋转轴1.1的平面倾斜。这是在输出部段3.3中在流体中产生涡旋的前提条件。
也可以考虑的是,可调节地放置导向件7.1,从而改变朝向旋转轴1.1的平面的倾斜并且也由此改变涡旋。设置有多个反向涡旋发生器7,例如2个,3个,4个。然而也可以考虑仅设置一个唯一的反向涡旋发生器7。
反向涡旋发生器也可以具有与所示出的构造不同的其它的构造。由此也可以将导向件设计成可旋转的部件,其包括旋转轴和多个处于旋转轴上的叶片。也可以考虑一种非机械的解决方案。由此例如可以设置喷嘴,抽吸管道例如在其输出部段3.3中装配该喷嘴。该喷嘴可以与可流动的介质、通常是水相连接并且以如下方式安装,即,在抽吸管道3中的流体中产生期望的反向涡旋。
图4示意性地示出一种液压的解决方案。在抽吸管道3的壁中布置有多个涡旋发生喷嘴8。在此开始喷水。喷射方向由箭头示出。
图5示意性地示出具有流线图的液压泵的抽吸管道3。抽吸管道未配备有根据本发明的反向涡旋发生器。如所示地那样,在抽吸管道的转弯处的内壁区域处发生了分离X。
本发明也可以应用在泵涡轮机中。在这种情况下,反向涡旋发生器在泵运行中被激活-这又仅在起动时发生。
参考标号表
1 叶轮
1.1 旋转轴
2 蜗壳
3 抽吸管道
3.1 输入部段
3.2 弯管
3.3 输出部段
3.4 凹处
3.5 调节装置
4 上升管
5 电动机
6 轴
7 反向涡旋发生器
7.1 导向件
8 涡旋发生喷嘴
Claims (6)
1.一种混流式泵,包括以下特征:
1.1 叶轮(1);
1.2 蜗壳(2);
1.3 抽吸管道(3);
1.4 在入口中朝向所述叶轮(1)布置的反向涡旋发生器(7),所述反向涡旋发生器在沿着泵送方向起动期间是能激活的,并且在起动之后是能关闭的,并且所述反向涡旋发生器产生与所述叶轮(1)的旋转方向相反地起作用的涡旋。
2.根据权利要求1所述的泵,其特征在于,所述反向涡旋发生器(7)是泵涡轮机的组成部分。
3.根据权利要求1或2所述的泵,其特征在于,所述反向涡旋发生器包括导向件(7.1)。
4.根据权利要求1或2所述的泵,其特征在于,所述反向涡旋发生器包括多个涡旋发生喷嘴(8)。
5.根据权利要求1至4中任一项所述的泵,其特征在于,所述反向涡旋发生器布置在所述抽吸管道的输出部段(3.3)中。
6.根据权利要求1至5中任一项所述的泵,其特征在于,所述反向涡旋发生器包括多个单元,所述单元围绕旋转轴(1.1)进行分组。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010050001.1 | 2010-11-02 | ||
DE102010050001A DE102010050001A1 (de) | 2010-11-02 | 2010-11-02 | Pumpe in Francis-Bauweise für ein Wasserkraftwerk |
PCT/EP2011/005156 WO2012059174A2 (de) | 2010-11-02 | 2011-10-14 | Pumpe in francis-bauweise für ein wasserkraftwerk |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103228908A true CN103228908A (zh) | 2013-07-31 |
Family
ID=44872270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2011800526967A Pending CN103228908A (zh) | 2010-11-02 | 2011-10-14 | 用于水力发电站的混流式泵 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130266445A1 (zh) |
EP (1) | EP2635800A2 (zh) |
JP (1) | JP2013543074A (zh) |
CN (1) | CN103228908A (zh) |
DE (1) | DE102010050001A1 (zh) |
WO (1) | WO2012059174A2 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102720622B (zh) * | 2012-06-21 | 2015-02-04 | 河海大学 | 一种水轮机尾水管涡流发生器 |
CA2908772A1 (en) * | 2013-04-08 | 2014-10-16 | Voith Patent Gmbh | Device and method for reducing pressure fluctuations in the suction pipe of a water turbine or water pump or water pump turbine |
AT521415B1 (de) | 2018-07-03 | 2021-01-15 | Andritz Hydro Gmbh | Anlage zur energiegewinnung |
DE102022101640B3 (de) | 2022-01-25 | 2023-01-19 | Voith Patent Gmbh | Pumpe für ein Wasserkraftwerk |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3238534A (en) * | 1962-10-15 | 1966-03-01 | English Electric Co Ltd | Hydraulic pumps and reversible pump turbines |
US3237563A (en) * | 1962-10-15 | 1966-03-01 | English Electric Co Ltd | Hydraulic pumps and reversible pump turbines |
DE2306742A1 (de) * | 1972-10-31 | 1974-05-02 | Elektro App Werke Veb | Schaltungsanordnung zur ausloesung von elektrischen schaltgeraeten, insbesondere von strombegrenzenden schaltern |
DE3707723A1 (de) * | 1987-03-11 | 1988-09-22 | Messerschmitt Boelkow Blohm | Vorrichtung zur drallerzeugung in der anstroemung von turbo-maschinen |
WO2010094887A1 (fr) * | 2009-02-18 | 2010-08-26 | Alstom Hydro France | Installation de conversion d'énergie hydraulique et procédé de commande d'une telle installation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2306742A (en) * | 1940-06-26 | 1942-12-29 | Lewis F Moody | Pump |
CH254357A (de) * | 1945-06-16 | 1948-04-30 | Karlstad Mekaniska Ab | Leitvorrichtung an hydraulischen Maschinen. |
CH400043A (de) * | 1963-01-18 | 1965-09-30 | Escher Wyss Ag | Verfahren und Einrichtung zur Begrenzung der Drehzahl der Anwurfturbine einer Pumpenturbine oder Speicherpumpe |
JPH0742932B2 (ja) * | 1985-11-26 | 1995-05-15 | 株式会社東芝 | 揚水水力機械の運転制御装置 |
JPS6388278A (ja) * | 1986-10-02 | 1988-04-19 | Mitsubishi Heavy Ind Ltd | 水柱分離抑制方法 |
NO20044391D0 (no) * | 2004-10-18 | 2004-10-18 | Troms Kraft Produksjon As | Anordning og fremgangsmate ved sugeror |
DE102009004599A1 (de) * | 2009-01-12 | 2010-07-15 | Sunder-Plaßmann, Christoph, Dipl.-Ing. | Gehäuselose, radialwirkende Strömungs-Arbeitsmaschine |
-
2010
- 2010-11-02 DE DE102010050001A patent/DE102010050001A1/de not_active Withdrawn
-
2011
- 2011-10-14 EP EP11773684.3A patent/EP2635800A2/de not_active Withdrawn
- 2011-10-14 WO PCT/EP2011/005156 patent/WO2012059174A2/de active Application Filing
- 2011-10-14 US US13/879,692 patent/US20130266445A1/en not_active Abandoned
- 2011-10-14 CN CN2011800526967A patent/CN103228908A/zh active Pending
- 2011-10-14 JP JP2013530629A patent/JP2013543074A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3238534A (en) * | 1962-10-15 | 1966-03-01 | English Electric Co Ltd | Hydraulic pumps and reversible pump turbines |
US3237563A (en) * | 1962-10-15 | 1966-03-01 | English Electric Co Ltd | Hydraulic pumps and reversible pump turbines |
DE2306742A1 (de) * | 1972-10-31 | 1974-05-02 | Elektro App Werke Veb | Schaltungsanordnung zur ausloesung von elektrischen schaltgeraeten, insbesondere von strombegrenzenden schaltern |
DE3707723A1 (de) * | 1987-03-11 | 1988-09-22 | Messerschmitt Boelkow Blohm | Vorrichtung zur drallerzeugung in der anstroemung von turbo-maschinen |
WO2010094887A1 (fr) * | 2009-02-18 | 2010-08-26 | Alstom Hydro France | Installation de conversion d'énergie hydraulique et procédé de commande d'une telle installation |
Also Published As
Publication number | Publication date |
---|---|
DE102010050001A1 (de) | 2012-05-03 |
EP2635800A2 (de) | 2013-09-11 |
JP2013543074A (ja) | 2013-11-28 |
WO2012059174A2 (de) | 2012-05-10 |
WO2012059174A3 (de) | 2013-05-10 |
US20130266445A1 (en) | 2013-10-10 |
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