CN103228908A - Francis-type pump for hydroelectric power plant - Google Patents
Francis-type pump for hydroelectric power plant 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.)
- Pending
Links
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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
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- 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
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- 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 Non-Positive-Displacement Pumps (AREA)
- Control Of Water Turbines (AREA)
Abstract
The invention relates to a Francis-type pump, comprising the following features: an impeller; a spiral housing; a suction pipe; and a counter angular momentum generator which is arranged in the inflow to the impeller, which can be activated during the operation of the pump and deactivated after the operation, and which generates an angular momentum that acts against the rotational direction of the impeller.
Description
Technical field
The present invention relates to a kind of mixed-flow pump (Pumpe in Francis-Bauweise) hydroelectric power plant, that be used for water is pumped into from lower reservoir upper pond that is used for.
Background technique
This pump has impeller, spiral case and suction channel.
This pump can be the constituent element of energy-accumulating power station of drawing water.This pump moves as turbo machine when upper pond flows to lower reservoir at current.See WO2010/094887A1 for details.
To design this pump according to the parameter of determining, decide, particularly design according to the delivery head of determining and definite flow on the power station condition.
This pump goes wrong when starting again and again.These problems are: because current and instability make this pump transporting water not fully when starting.
The inventor has found following information:
When delivery head surpasses size as the basis of structure just the problems referred to above can appear.For example, high especially when the upper waters plane, or the downstream water plane is low especially, or all the problems referred to above can occur when both of these case occurs simultaneously.Thus, it is considered as crucial especially value with delivery head.
Summary of the invention
The objective of the invention is to, design a kind of pump that starts described type like this, even make the condition current downflow at big delivery head still keep stable and can realize priming of pump.
This solution comprises following content:
-in the inlet of pump, vortex generator is being set;
-especially, for suction channel disposes a plurality of guiding elements, these guiding elements be arranged in suction channel around and these guiding elements during starts can enter into the fluid that is sucked line transportation at pump;
-guiding element designs like this and arranges, that is, they provide the vortex opposite with the rotation of impeller for fluid.Thus can be so that fluid keeps stable when starting.
If at first produced stable fluid by reverse vortex when starting, guiding element can be separated again so.
Description of drawings
Explain the present invention and prior art with reference to the accompanying drawings.Wherein be shown specifically following content:
Fig. 1 illustrates the front view as the mixed-flow pump of the constituent element of hydroelectric power plant;
Fig. 2 illustrate suction channel, be connected with the axial cross section schematic representation of that part of impeller thereon;
Fig. 3 is illustrated in along the theme of the Fig. 2 in the view of III-III;
The schematically illustrated axial vertical cross-section diagram that passes suction channel of Fig. 4 with a plurality of hydraulic pressure vortex generators;
Fig. 5 illustrates according to suction channel prior art, that have streamline.
Embodiment
Mixed-flow pump shown in Fig. 1 comprises impeller 1, and this impeller is surrounded by spiral case 2.
Be connected with suction channel 3 in the upstream of impeller 1.The conveyance fluid that is produced by impeller 1 is transported to the asending pipe 4 from spiral case.
Submerge in the lower reservoir that does not illustrate at this in the end of the input side of suction channel.The end of the outlet side of asending pipe 4 is passed in the upper pond that this does not illustrate.
Pump is driven by motor 5.Impeller 1 and motor 5 are arranged coaxially and are in the state of being in transmission connection each other by axle 6.
The carry-out part section 3.3 that suction channel 3 has input part section 3.1, bend pipe 3.2 and is connected the upstream of impeller 1.
Important components is to be used to be in reverse to the device that impeller 1 produces vortex.This device comprises a plurality of reverse vortex generators 7.These reverse vortex generators are arranged on the carry-out part section 3.3 of suction channel.See Fig. 2 and 3 for details.
Reverse vortex generator 7 shown in the tectonic maps 2 as follows:
The wall of carry-out part section 3.3 has recess 3.4 at it near in the zone of impeller.Guiding element 7.1 can move towards the running shaft 1.1 of impeller 1 more or less by controlling device 3.5.Guiding element can be foliated.
As can be seen from Figure 3, guiding element 7.1 is towards the plane inclination of running shaft 1.1.This is the precondition that produces vortex in carry-out part section 3.3 in fluid.
Be contemplated that also adjustable ground is placed guiding element 7.1, thereby change towards the inclination on the plane of running shaft 1.1 and also change vortex thus.Be provided with a plurality of reverse vortex generators 7, for example 2,3,4.Yet also can consider only to be provided with a unique reverse vortex generator 7.
The reverse vortex generator also can have the structure of other different with shown structure.Also guiding element can be designed to rotatable parts thus, it comprises running shaft and a plurality of blade that is on the running shaft.Also can consider a kind of non-mechanical solution.For example nozzle can be set thus, suction channel is this nozzle of assembling in its carry-out part section 3.3 for example.This nozzle can be with flowable medium, normally water is connected and installs as follows,, produces the reverse vortex of expectation in the fluid in suction channel 3 that is.
The solution of the schematically illustrated a kind of hydraulic pressure of Fig. 4.In the wall of suction channel 3, be furnished with a plurality of vortex generation nozzles 8.Begin water spray at this.Injection direction is illustrated by arrow.
The schematically illustrated suction channel 3 of Fig. 5 with oil hydraulic pump of streamline chart.Suction channel is not equipped with according to reverse vortex generator of the present invention.As illustrated, at the inner wall area place at the turning of suction channel separation X has taken place.
The present invention also can be applied in the pump turbo machine.In this case, the reverse vortex generator is activated in pump operation-this only generation when starting again.
REFERENCE NUMBER LIST
1 impeller
1.1 running shaft
2 spiral cases
3 suction channels
3.1 input part section
3.2 bend pipe
3.3 carry-out part section
3.4 recess
3.5 controlling device
4 asending pipes
5 motor
6
7 reverse vortex generators
7.1 guiding element
8 vortex generation nozzles
Claims (6)
1. mixed-flow pump comprises following feature:
1.1 impeller (1);
1.2 spiral case (2);
1.3 suction channel (3);
1.4 the reverse vortex generator of in inlet, arranging (7) towards described impeller (1), described reverse vortex generator during starts is being to activate along the pumping direction, and after starting, closing, and the vortex that described reverse vortex generator produces and the sense of rotation of described impeller (1) works on the contrary.
2. pump according to claim 1 is characterized in that, described reverse vortex generator (7) is the constituent element of pump turbo machine.
3. pump according to claim 1 and 2 is characterized in that, described reverse vortex generator comprises guiding element (7.1).
4. pump according to claim 1 and 2 is characterized in that, described reverse vortex generator comprises a plurality of vortex generation nozzles (8).
5. according to each described pump in the claim 1 to 4, it is characterized in that described reverse vortex generator is arranged in the carry-out part section (3.3) of described suction channel.
6. according to each described pump in the claim 1 to 5, it is characterized in that described reverse vortex generator comprises a plurality of unit, described unit divides into groups around running shaft (1.1).
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 |
|---|---|
| CN103228908A true CN103228908A (en) | 2013-07-31 |
Family
ID=44872270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800526967A Pending CN103228908A (en) | 2010-11-02 | 2011-10-14 | Francis-type pump for hydroelectric power plant |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20130266445A1 (en) |
| EP (1) | EP2635800A2 (en) |
| JP (1) | JP2013543074A (en) |
| CN (1) | CN103228908A (en) |
| DE (1) | DE102010050001A1 (en) |
| WO (1) | WO2012059174A2 (en) |
Families Citing this family (4)
| 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 |
| WO2014166663A1 (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 |
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 (en) * | 1972-10-31 | 1974-05-02 | Elektro App Werke Veb | CIRCUIT ARRANGEMENT FOR TRIGGERING ELECTRICAL SWITCHING DEVICES, IN PARTICULAR CURRENT-LIMITING SWITCHES |
| 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 |
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 (en) * | 1945-06-16 | 1948-04-30 | Karlstad Mekaniska Ab | Guide device on hydraulic machines. |
| CH400043A (en) * | 1963-01-18 | 1965-09-30 | Escher Wyss Ag | Method and device for limiting the speed of the launch turbine of a pump turbine or storage pump |
| JPH0742932B2 (en) * | 1985-11-26 | 1995-05-15 | 株式会社東芝 | Operation control device for pumped hydro |
| JPS6388278A (en) * | 1986-10-02 | 1988-04-19 | Mitsubishi Heavy Ind Ltd | Water column separation suppressing method |
| NO20044391D0 (en) * | 2004-10-18 | 2004-10-18 | Troms Kraft Produksjon As | Device and method of suction pipe |
| DE102009004599A1 (en) * | 2009-01-12 | 2010-07-15 | Sunder-Plaßmann, Christoph, Dipl.-Ing. | Single stage, radial-acting flow machine carries conveying medium from area of low pressure in area of high pressure, where impeller is provided that is upstream to swirl generating device |
-
2010
- 2010-11-02 DE DE102010050001A patent/DE102010050001A1/en not_active Withdrawn
-
2011
- 2011-10-14 WO PCT/EP2011/005156 patent/WO2012059174A2/en active Application Filing
- 2011-10-14 US US13/879,692 patent/US20130266445A1/en not_active Abandoned
- 2011-10-14 EP EP11773684.3A patent/EP2635800A2/en not_active Withdrawn
- 2011-10-14 JP JP2013530629A patent/JP2013543074A/en active Pending
- 2011-10-14 CN CN2011800526967A patent/CN103228908A/en 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 (en) * | 1972-10-31 | 1974-05-02 | Elektro App Werke Veb | CIRCUIT ARRANGEMENT FOR TRIGGERING ELECTRICAL SWITCHING DEVICES, IN PARTICULAR CURRENT-LIMITING SWITCHES |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013543074A (en) | 2013-11-28 |
| WO2012059174A2 (en) | 2012-05-10 |
| US20130266445A1 (en) | 2013-10-10 |
| DE102010050001A1 (en) | 2012-05-03 |
| WO2012059174A3 (en) | 2013-05-10 |
| EP2635800A2 (en) | 2013-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130731 |