JP2013543074A - Francis pump for hydropower plants - Google Patents

Francis pump for hydropower plants Download PDF

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Publication number
JP2013543074A
JP2013543074A JP2013530629A JP2013530629A JP2013543074A JP 2013543074 A JP2013543074 A JP 2013543074A JP 2013530629 A JP2013530629 A JP 2013530629A JP 2013530629 A JP2013530629 A JP 2013530629A JP 2013543074 A JP2013543074 A JP 2013543074A
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Prior art keywords
pump
counter
runner
suction pipe
swivel
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ベルント マイヤー，
マルティン ギーズ，
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Voith Patent GmbH
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Voith Patent GmbH
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    • 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

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  • 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 Non-Positive-Displacement Pumps (AREA)
  • Control Of Water Turbines (AREA)

Abstract

本発明は、フランシス構造のポンプに関するものであって、以下の特徴を有する：
−ランナー；
−螺旋ケーシング；
−吸出管：
−ポンプの始動の間作動可能であり、始動後に非作動にすることができ、かつランナーの回転方向とは逆に作用する旋回を発生させる、ランナーへの供給部内に配置されたカウンター旋回発生器。
【選択図】図１The present invention relates to a Francis pump and has the following characteristics:
-Runner;
-Spiral casing;
-Suction pipe:
A counter swivel generator arranged in the supply to the runner, which can be activated during the start of the pump, can be deactivated after the start and generates a swirl acting opposite to the direction of rotation of the runner .
[Selection] Figure 1

Description

本発明は、下方水槽から上方水槽へ水を汲み上げるための、水力発電所用のフランシス構造のポンプに関する。  The present invention relates to a Francis structure pump for a hydroelectric power plant for pumping water from a lower water tank to an upper water tank.

この種のポンプは、ランナー、螺旋ケーシングおよび吸出管を有している。  This type of pump has a runner, a helical casing and a suction pipe.

これは、ポンプフィード発電所の要素となることができる。この種のものとして、水が上方水槽から下方水槽へ流れる場合に、タービンとして駆動することができる。特許文献１を参照。  This can be an element of a pump feed power plant. As this kind, when water flows from the upper water tank to the lower water tank, it can be driven as a turbine. See US Pat.

この種のポンプは、発電所に基づく所定のパラメータに、特に所定の給送高さと所定の流量に、合わせて設計されている。  This type of pump is designed for a given parameter based on the power plant, in particular for a given feed height and a given flow rate.

この種のポンプにおいては、常に始動する際に問題がもたらされる。問題は、始動する際に、流れが不安定であるために、ポンプが水を全く給送しないことにある。  With this type of pump, problems always arise when starting. The problem is that when starting, the pump does not deliver any water due to the unstable flow.

発明者は、以下のことを認識した：  The inventor has recognized the following:

問題は、給送高さが、構造の基礎となる寸法を超えた場合に発生する。これは、たとえば、上方水面が特に高い場合、あるいは下方水面が特に低い場合、あるいは両方が同時に発生した場合に、生じることがある。従って発明者は、給送高さを特に問題のある変量として認識した。  The problem occurs when the feed height exceeds the dimensions on which the structure is based. This can occur, for example, when the upper water surface is particularly high, or when the lower water surface is particularly low, or both occur simultaneously. The inventor therefore recognized feed height as a particularly problematic variable.

国際公開パンフレットＷＯ２０１０／０９４８８７Ａ１International publication pamphlet WO2010 / 0994887A1

本発明の課題は、冒頭で挙げた種類のポンプを、給送高さが大きい場合でも流れが安定しており、かつポンプの始動を可能にするように、形成することである。  The object of the present invention is to form a pump of the type mentioned at the outset in such a way that the flow is stable even when the feed height is large and that the pump can be started.

解決は、以下のことにある：
−ポンプの供給部内に旋回発生器が設けられる。
−特に吸出管に幾つかの案内部材が対応づけられており、それらは吸出管の周面に配置されて、ポンプの始動の間吸出管から案内される流れ内へ圧入可能である。
−案内部材は、流れにランナーの回転に対して逆向きの旋回を与えるように、形成され、かつ配置されている。従って始動の際に、流れが安定する。The solution is to:
A swirl generator is provided in the supply of the pump.
A number of guide members, in particular associated with the suction pipe, which are arranged on the peripheral surface of the suction pipe and can be pressed into the flow guided from the suction pipe during pump start-up.
The guide member is formed and arranged to give the flow a swivel opposite to the runner rotation; Therefore, the flow is stabilized at the start.

始動の際に、逆旋回によって初めて安定した流れが形成された場合に、案内部材を再び押し離すことができる。  When starting, when a stable flow is formed for the first time by reverse turning, the guide member can be pushed away again.

本発明および従来技術を、図面を用いて詳細に説明する。  The present invention and the prior art will be described in detail with reference to the drawings.

水力発電所の構成要素としてのフランシスポンプを正面で示している。The Francis pump as a component of a hydroelectric power plant is shown in the front. 吸出管の、ランナーが接続されている部分を図式的に軸断面で示している。The part of the suction pipe to which the runner is connected is shown schematically in axial section. 図２の対象をＩＩＩ−ＩＩＩ線で示している。The object of FIG. 2 is shown by the III-III line. 複数の水圧式の旋回発生器を有する吸出管を軸垂直の断面で図式的に示している。A suction pipe having a plurality of hydraulic swirl generators is schematically shown in a cross section perpendicular to the axis. 従来技術に基づく吸出管を流れラインと共に示している。A suction pipe according to the prior art is shown with a flow line.

図１に示すフランシスポンプは、ランナー１を有しており、そのランナーが螺旋ケーシング２によって包囲されている。  The Francis pump shown in FIG. 1 has a runner 1, and the runner is surrounded by a spiral casing 2.

ランナー１の前段に吸出管３が接続されている。ランナー１によって発生された給送流が、螺旋ケーシングから昇り導管４内へ供給される。  A suction pipe 3 is connected to the front stage of the runner 1. The feed flow generated by the runner 1 is fed up from the spiral casing into the conduit 4.

吸出管の流入側の端部は、ここには図示されない下方水槽内へ潜っている。昇り導管４の流出側の端部は、ここには図示されない上方水槽内へ開口している。  The end portion on the inflow side of the suction pipe lies in a lower water tank (not shown). The outflow side end of the ascending conduit 4 opens into an upper water tank (not shown).

ポンプは、電動機５によって駆動されている。ランナー１と電動機５は、同軸に配置されており、かつ軸６を介して互いに駆動結合されている。  The pump is driven by the electric motor 5. The runner 1 and the electric motor 5 are arranged coaxially and are coupled to each other via a shaft 6.

吸出管３は、流入部分３．１、ベンド管３．２およびランナー１の前段に接続された流出部分３．３を有している。  The suction pipe 3 has an inflow part 3.1, a bend pipe 3.2 and an outflow part 3.3 connected to the front stage of the runner 1.

決定的な構成部分は、ランナー１に対して逆方向に旋回を発生させる装置である。この装置は、多数のカウンター旋回発生器７を有している。これらは、吸出管の流出部分３．３に配置されている。図２と３を参照。  The critical component is a device that causes the runner 1 to turn in the opposite direction. This device has a number of counter swivel generators 7. These are arranged in the outflow part 3.3 of the suction pipe. See Figures 2 and 3.

図２に示すカウンター旋回発生器７は、以下のように構築されている：  The counter swivel generator 7 shown in FIG. 2 is constructed as follows:

流出部分３．３の壁が、ランナーに近い領域内にポケット３．４を有している。案内部材７．１は、調節装置３．５によってランナー１の回転軸１．１に対して大きい距離または少ない距離で摺動することができる。案内部材は、羽根形状であることができる。  The wall of the outflow part 3.3 has a pocket 3.4 in the region close to the runner. The guide member 7.1 can be slid at a large distance or a small distance with respect to the rotating shaft 1.1 of the runner 1 by the adjusting device 3.5. The guide member can have a blade shape.

図３からは、案内部材７．１が回転軸１．１の平面に対して傾斜していることが、明らかである。これが、流出部分３．３内で流れ内に旋回が発生される前提である。  From FIG. 3, it is clear that the guide member 7.1 is inclined with respect to the plane of the rotation axis 1.1. This is the premise that a swirl is generated in the flow in the outflow part 3.3.

また、案内部材７．１を変位可能に軸承することも考えられるので、回転軸１．１の平面に対する傾斜とそれに伴って旋回も変化される。複数の、たとえば２、３、４のカウンター旋回発生器７が設けられている。しかし、１つのカウンター旋回発生器７のみを設けることも、考えられる。  In addition, it is conceivable that the guide member 7.1 is supported so as to be displaceable, so that the inclination of the rotation shaft 1.1 with respect to the plane and the turning are changed accordingly. A plurality of counter rotation generators 7, for example 2, 3, 4 are provided. However, it is also conceivable to provide only one counter-rotation generator 7.

カウンター旋回発生器は、図示されたものとは異なる形態を有することもできる。すなわち案内部材は、回転軸と回転軸上に取り付けられた複数の羽根とを有する、回転可能な部材として形成することもできる。また、非機械的解決も、考えられる。すなわち、たとえばノズルを設けることができ、そのノズルが吸出管に、たとえばその流出部分３．３内に、搭載される。ノズルは、流動可能な媒体、一般に水、に接続可能であり、かつ、吸出管３内の流れの中に所望のカウンター旋回が発生されるように、方向付けされている。  The counter swivel generator may have a different form than that shown. That is, the guide member can also be formed as a rotatable member having a rotation shaft and a plurality of blades attached on the rotation shaft. Non-mechanical solutions are also conceivable. That is, for example, a nozzle can be provided, which is mounted on the suction pipe, for example in its outflow part 3.3. The nozzle is connectable to a flowable medium, generally water, and is oriented so that the desired counter swirl is generated in the flow in the suction pipe 3.

図４は、水圧式解決を示している。吸出管３の壁に複数の旋回発生ノズル８が配置されている。ここでウォータービームが導入される。放射方向は、矢印によって示されている。  FIG. 4 shows a hydraulic solution. A plurality of swirl generation nozzles 8 are arranged on the wall of the suction pipe 3. Here, a water beam is introduced. The direction of radiation is indicated by arrows.

図５は、水圧ポンプの吸出管３を流れライン図と共に図式的に示している。吸出管は、本発明に基づくカウンター旋回発生器を搭載していない。見ての通り、吸出管のベンド管の内壁領域に、剥がれＸがもたらされる。  FIG. 5 schematically shows the suction pipe 3 of the hydraulic pump together with a flow line diagram. The suction pipe is not equipped with a counter swivel generator according to the invention. As can be seen, a peel X is produced in the inner wall region of the bend tube of the suction tube.

本発明は、ポンプタービンにおいても適用される。このような場合においては、カウンター旋回発生器は、ポンプ駆動において、−そして始動の際のみに−作動される。  The present invention is also applied to a pump turbine. In such a case, the counter swivel generator is activated in the pump drive—and only at start-up.

１ ランナー
１．１ 回転軸
２ 螺旋ケーシング
３ 吸出管
３．１ 流入部分
３．２ ベンド管
３．３ 流出部分
３．４ ポケット
３．５ 調節装置
４ 昇り導管
５ 電動機
６ 軸
７ カウンター旋回発生器
７．１ 案内部材
８ カウンター旋回発生ノズルDESCRIPTION OF SYMBOLS 1 Runner 1.1 Rotating shaft 2 Spiral casing 3 Suction pipe 3.1 Inlet part 3.2 Bend pipe 3.3 Outlet part 3.4 Pocket 3.5 Control device 4 Ascending pipe 5 Electric motor 6 Axis 7 Counter swivel generator 7 .1 Guide member 8 Counter swirl generation nozzle

Claims (6)

フランシス構造のポンプであって、以下の特徴：
１．１ ランナー（１）；
１．２ 螺旋ケーシング（２）；
１．３ 吸出管（３）；
１．４ 始動の間、ポンプ方向に作動可能であり、始動後に非作動にすることができ、かつランナー（１）の回転方向とは逆に作用する旋回を発生させる、ランナー（１）への供給部内に配置されたカウンター旋回発生器（７）、
を有する、フランシス構造のポンプ。A Francis pump with the following features:
1.1 Runner (1);
1.2 Spiral casing (2);
1.3 Suction pipe (3);
1.4 To the runner (1), which can be actuated in the direction of the pump during start-up, can be deactivated after start-up, and produces a swivel acting opposite to the direction of rotation of the runner (1) A counter swivel generator (7) arranged in the supply section,
A Francis structure pump. カウンター旋回発生器（７）が、ポンプタービンの構成要素であることを特徴とする請求項１に記載のポンプ。  2. Pump according to claim 1, characterized in that the counter swivel generator (7) is a component of a pump turbine. カウンター旋回発生器が、案内部材（７．１）を有していることを特徴とする請求項１または２に記載のポンプ。  3. The pump according to claim 1, wherein the counter-swivel generator has a guide member (7.1). カウンター旋回発生器が、複数のカウンター旋回発生ノズル（８）を有していることを特徴とする請求項１または２に記載のポンプ。  The pump according to claim 1 or 2, characterized in that the counter swirl generator has a plurality of counter swirl generation nozzles (8). カウンター旋回発生器が、吸出管の流出部分（３．３）内に配置されていることを特徴とする請求項１から４のいずれか１項に記載のポンプ。  5. A pump according to any one of claims 1 to 4, characterized in that the counter-swivel generator is arranged in the outflow part (3.3) of the suction pipe. カウンター旋回発生器が、回転軸（１．１）を中心にグループ化された、複数のユニットを有していることを特徴とする請求項１から５のいずれか１項に記載のポンプ。  6. The pump according to claim 1, wherein the counter-swivel generator comprises a plurality of units grouped around a rotation axis (1.1).
JP2013530629A 2010-11-02 2011-10-14 Francis pump for hydropower plants Pending JP2013543074A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010050001.1 2010-11-02
DE102010050001A DE102010050001A1 (en) 2010-11-02 2010-11-02 Pump in Francis design for a hydroelectric power station
PCT/EP2011/005156 WO2012059174A2 (en) 2010-11-02 2011-10-14 Francis-type pump for a hydroelectric power plant

Publications (1)

Publication Number Publication Date
JP2013543074A true JP2013543074A (en) 2013-11-28

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JP2013530629A Pending JP2013543074A (en) 2010-11-02 2011-10-14 Francis pump for hydropower plants

Country Status (6)

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US (1) US20130266445A1 (en)
EP (1) EP2635800A2 (en)
JP (1) JP2013543074A (en)
CN (1) CN103228908A (en)
DE (1) DE102010050001A1 (en)
WO (1) WO2012059174A2 (en)

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Publication number Priority date Publication date Assignee Title
CN102720622B (en) * 2012-06-21 2015-02-04 河海大学 Vortex generator for turbine draft tube
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 (en) 2018-07-03 2021-01-15 Andritz Hydro Gmbh SYSTEM FOR ENERGY GENERATION
DE102022101640B3 (en) 2022-01-25 2023-01-19 Voith Patent Gmbh Pump for a hydroelectric power station

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US2306742A (en) * 1940-06-26 1942-12-29 Lewis F Moody Pump
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
JPS62126276A (en) * 1985-11-26 1987-06-08 Toshiba Corp Operation controller for pumping-up hydraulic machinery
DE3707723A1 (en) * 1987-03-11 1988-09-22 Messerschmitt Boelkow Blohm Device for generating a swirl in the intake flow of turbo- machines
WO2010094887A1 (en) * 2009-02-18 2010-08-26 Alstom Hydro France Hydraulic energy conversion unit and method of controlling such a unit

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Publication number Publication date
DE102010050001A1 (en) 2012-05-03
EP2635800A2 (en) 2013-09-11
CN103228908A (en) 2013-07-31
WO2012059174A2 (en) 2012-05-10
WO2012059174A3 (en) 2013-05-10
US20130266445A1 (en) 2013-10-10

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