CN103206331A - Low-head efficient shaft-extension tubular pump turbine and blades thereof - Google Patents

Low-head efficient shaft-extension tubular pump turbine and blades thereof Download PDF

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Publication number
CN103206331A
CN103206331A CN2013100498972A CN201310049897A CN103206331A CN 103206331 A CN103206331 A CN 103206331A CN 2013100498972 A CN2013100498972 A CN 2013100498972A CN 201310049897 A CN201310049897 A CN 201310049897A CN 103206331 A CN103206331 A CN 103206331A
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China
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runner
described
blade
fn
deflector
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CN2013100498972A
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Chinese (zh)
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CN103206331B (en
Inventor
葛新峰
郑源
罗欣
钱瑭
吴在强
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河海大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels
    • Y02E10/223Turbines or waterwheels, e.g. details of the rotor

Abstract

The invention relates to a low-head shaft-extension tubular pump turbine and blades thereof, and belongs to the technical field of energy power. The low-head shaft-extension tubular pump turbine comprises a pump turbine body, a reversible motor, a flow channel and a flow guide mechanism, the flow channel comprises a water inlet section flow channel, a guide blade section flow channel, a runner chamber and an S-shaped exhaust water pipe flow channel which are sequentially communicated, a runner is in transmission connection with the reversible motor through a spindle, the flow guide mechanism is arranged on the other side of the runner, the runner comprises a runner boss and a runner cone, the blades are circumferentially and uniformly arranged on the runner boss, the middle of each blade is thick while two sides of each blade are thin, each blade is in the shape of a three-dimensional warped surface, and spatial characteristics of each blade are indicated by an upper section, a middle section and a lower section. The operation conditions of power generation by a turbine and water pumping by a pump can be simultaneously met and are opposite in water flow direction, namely, the same runner needs to simultaneously meet the double requirements of water pumping and power generation, the efficiency of the two operation conditions can be simultaneously considered, and the low-head shaft-extension tubular pump turbine is applicable to a low-head pumped storage power station.

Description

The efficient axle extend through flow type pump turbine of a kind of low water head and blade thereof

Technical field

The present invention relates to a kind of efficient axle extend through flow type pump turbine of low water head pump turbine of the pumped storage power station for low water head, belong to Fluid Machinery and Engineering equipment field.

Background technique

Since reform and opening-up, along with the develop rapidly of China's economic construction and improving constantly of living standards of the people, power supply day is becoming tight, and the peak valley difference is aggravated gradually.Based on guaranteeing power grid security and the effectively requirement of operation, pumped storage power station is as a kind of power station that has special nature: peak-clipping and valley-filling, functions such as frequency modulation, pressure regulation, emergency duty, black startup will be the strategic emphasis of China's power network development.The working method of pumped storage power station is to utilize unnecessary electric energy in the electric power system, water in the low reservoir of elevation (common name " lower storage reservoir ") is extracted in the high reservoir of elevation (common name " upper storage reservoir "), stores in the potential energy mode, when system needs electric power, discharge water to lower storage reservoir from upper storage reservoir again and generate electricity.Conventional general pumped storage power station all is that its single-machine capacity of high-head power station is also very big, and it mainly is to cooperate operation with electrical network.At present, middle high head and big capacity pump turbine have had more deep research at home and abroad, have accumulated the experience of design, construction and operation management, and have obtained great successes technically.Yet, exploitation along with new energy such as the development of new energy such as wind energy, solar energy, ocean trend energy, because the instability of these energy can only just can be generated electricity when the sun is arranged as solar energy, wind-powered electricity generation can only just can wind-powered electricity generation when wind-force reaches certain intensity.Particularly these energy may be away from big electrical network in the Application and Development process, from far-off regions as the island as some, the utilization of these new energy has formed an isolated little electric power system, in order to guarantee lonely stability of netting and the reasonable utilization of the energy, in the little electric power system that use in such mixing multipotency source, can utilize pumped storage power station to regulate, energy storage in other energy surpluses provides energy in other energy deficiencies.Such pumped storage power station generally all is very low head, and generally below 50 m, some has only about 10m, and this patent provides a kind of pump turbine runner of low water head pumped storage.This pump turbine runner is tubular two-way three blade rotary wheels, adopts the axle extend through flow type setting type for reducing investment and arrangement convenience power station.

The axle extend through flow type pump turbine is studied very few especially in China, main cause is that the design optimization of the overall structural type of runner design, the unit of axle extend through flow type unit, high-performance runner and the key technologies such as Placement of speed increaser are lacked deep research, design, cause this simple in structure, convenient for installation and maintenance, hydraulic performance is good, and the axle extend through flow type unit that civilwork engineering quantity is few is failed to obtain exploitation, promoted the use of.Simultaneously, China's low-head hydraulic resource is very abundant, particularly East China, south China and coastal area, the industrial and agricultural production prosperity, the need for electricity amount increases very fast, the research of novel axle extend through flow type unit also applies to the low water head pumped storage power station with it, and the comprehensive utilization of carrying out new energy is had profound significance.

Summary of the invention

The present invention proposes a kind of low water head axle extend through flow type pump turbine, opposite with twice water (flow) direction of pumping operation mode to solve the pump turbine generating operation mode, same runner will satisfy the dual requirements that draws water and generate electricity simultaneously, and will take into account the efficient of two operating conditionss simultaneously.

The present invention is that the technological scheme that solves the problems of the technologies described above proposition is: a kind of low water head axle extend through flow type pump turbine blade, described blade to be shaped as the thick middle both sides thin, be space three-dimensional distortion curved surface, its spatial character is represented by three cross sections of upper, middle and lower; Simultaneously novel molded lines is adopted in the intermediate cross-section, and this novel molded lines is to be combined by the end to end curve in two ends up and down, is that initial point is set up system of coordinates, x with the central point of each molded lines in three cross sections 1,x 2,x 3Be the abscissa of each coordinate, y 1, y 2, y 3Be the y coordinate of each coordinate, F1, F2, F3 represent three molded lines respectively, and then this blade part branch is as shown in the table in the position of rectangular coordinate system:

Numbering 101 102 103 104 105 106 107 108 109 ? On the F1 _ X1 -59.552 -50.0 -40.0 -20.0 0.0 20.0 30.896 40.0 52.836 ? On the F1 _ Y1 16.119 15.821 14.627 9.851 1.642 -6.119 -9.851 -12.090 -14.776 ? Numbering 109 110 111 112 113 114 115 116 101 ? Under the F1 _ X1 40.0 30.896 20.0 0.0 -20.149 -40.0 -52.985 -59.552 40.0 ? Under the F1 _ Y1 -13.284 -11.940 -8.806 -1.493 6.866 12.985 14.776 16.119 -13.284 ? Numbering 201 202 203 204 205 206 207 208 209 210 On the F2 _ X2 -48.507 -40.0 -30.0 -20.0 -10.0 10.0 20.0 30.0 40.0 44.179 On the F2 _ Y2 18.209 18.507 15.522 12.687 7.463 -3.284 -8.657 -12.090 -15.075 -16.269 Numbering 210 211 212 213 214 215 216 217 218 201 Under the F2 _ X2 40.000 30.000 21.343 10.000 -10.000 -20.000 -30.000 -40.000 -48.507 40.000 Under the F2 _ Y2 -15.821 -14.478 -11.940 -7.164 3.284 8.955 13.582 16.418 18.209 -15.821 Numbering 301 302 303 304 305 306 307 308 309 310 On the F3 _ X3 -35.522 -30.597 -25.0 -15.0 -5.0 5.0 15.0 25.0 30.597 35.821 On the F3 _ Y3 17.910 17.761 16.418 13.284 6.567 -0.597 -8.507 -15.224 -18.209 -19.701 Numbering 310 311 312 313 314 315 316 317 318 301 Under the F3 _ X3 35.821 30.597 25.0 15.0 5.0 -5.0 -15.0 -25.0 -30.597 -35.522 Under the F3 _ Y3 -19.701 -19.403 -18.209 -14.179 -6.567 1.194 9.701 14.328 16.119 17.910

Wherein Fn goes up reaching the standard grade of n molded lines of expression, under the Fn roll off the production line (n=1,2,3) of n molded lines of expression; On the Fn _ Xn represents the xn coordinate figure of molded lines Fn upper curve, on the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn upper curve; Under the Fn _ Xn represents the xn coordinate figure of molded lines Fn lower curve, under the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn lower curve.

Preferably: equation is as follows after six curve matches in described three cross sections:

The F1-F1 upper curve:

y 1?=?4.139e-005?x 1 3?-0.0003387x 1 2?-0.4065x 1?+?1.731

The F1-F1 lower curve:

y 1?=?4.574e-005?x 1 3?-0.0006619x 1 2?-0.4059x 1?-1.201

The F2-F2 upper curve:

y 2=8.084e-005x 2 3?-0.0004966x 2 2?-0.5473x 2+?2.202

The F2-F2 lower curve:

y 2=8.481e-005x 2 3?+0.001491x 2 2?-0.54141x 2-1.947

The F3-F3 upper curve:

y 3=0.0001776x 3 3?-0.003233x 3 2?-0.7519x 3+?2.966

The F3-F3 lower curve:

y 3=0.0002241x 3 3?+0.001285?x 3 2?-0.8037x 3-2.674。

A kind ofly comprise pump turbine, reversible motor, runner and deflector based on low water head axle extend through flow type pump turbine described above, described runner comprises inlet segment runner, stator section runner, runner envelope and the S type draft tube runner that connects successively; Described reversible motor is arranged on the S type draft tube runner outside, and described runner is connected by the spindle of passing runner with the reversible motor, and the generating operation mode suction side of runner is provided with deflector; Described runner is arranged in the runner envelope simultaneously, and deflector is arranged in inlet segment runner and the stator section runner; Described runner comprises runner boss, draft cone, and described runner boss edge circumferentially evenly is provided with the blade that a plurality of cross sections are symmetrical airfoil, and sluicing one side of runner boss is installed draft cone; The initial laying angle of described blade is 39 °, and adjusted value is between-3 °~3 °.

Preferably: described deflector comprises deflector and movable guide vane, and described movable guide vane is installed on the deflector afterbody, and the number of movable guide vane is 8; Movable guide vane is arranged in the stator section runner, and deflector is arranged in inlet segment runner and the stator section runner; Described deflector head is spherical, and the middle part is cylindrical body, and afterbody is taper, and described cone angle is 18o, and the head of described deflector, middle part are arranged in the inlet segment runner, and described deflector afterbody is arranged in the stator section runner.

Working principle of the present invention: the present invention is applicable to the low water head pumped storage power station.Pumped storage power station is a kind of water power plant of special shape, be with conventional hydropower station main difference part: it has upper and lower two reservoirs with water circulation use, its electromechanical equipment is made up of two-part: pump turbine and reversible motor, pump turbine is with the dual functions of water turbine and water pump, and the reversible motor has the dual functions of generator and motor concurrently.Its operation can be divided into two kinds of operating modes, i.e. pump operating condition and water turbine operating mode, and pump operating condition rises to upper storage reservoir with the water of lower storage reservoir, and consumed power converts electrical energy into the potential energy of upper storage reservoir water; Water with upper storage reservoir during the water turbine operating mode is put into lower storage reservoir by water turbine, and the potential energy of water is converted to electric energy, produces electric energy.The conversion process of energy of its two kinds of operating modes is seen accompanying drawing 1.When it utilizes other energy of electric power system abundant, with unnecessary capacity and electric weight, be extracted in the eminence upper storage reservoir by the water of motor water pump with the lower lower storage reservoir, this part water yield is stored with the potential energy form, when treating other energy deficiencies, again this part water yield is generated electricity by hydraulic turbine generator, to replenish the deficiency of other energy, the electricity consumption of satisfying system is stable, so constantly periodic duty.Thereby water distributor reaches exerting oneself of change generating or is suitable for the power that water pump draws water by the flow that the angle that changes movable guide vane changes by water turbine, the lay angle (θ) of while according to the variation fine setting runner of head and flow changeed and the work of movable guide vane joint wheel, guarantees that pump turbine is in efficiently district's operation.

A kind of low water head axle extend through flow type pump turbine of the present invention, compared to existing technology, have following beneficial effect: the present invention is in order to guarantee that the two-way efficient of pump turbine is all very high, its runner adopts the symmetrical airfoil design, can both obtain energy conversion efficiency preferably under generating operation mode and pumping operation mode.When forward generated electricity, current were by water inlet flow channel flow through movable guide vane, runner, at last by draft tube discharged to lower reservoir; Water (flow) direction is opposite when oppositely drawing water.Require runner energy two-way working, and forward and reverse work can both have transformation of energy performance preferably: the forward generating can be converted to electric energy as much as possible with water; Oppositely draw water and utilize dump energy that water is evacuated to upper pond, to obtain the potential energy of water as much as possible.The runner energy conversion efficiency reaches more than 80% when forward generates electricity; Oppositely reach more than 75% during pump operating condition.This unit is convenient for installation and maintenance, and the exploitation overall cost is relatively cheap in the power station, than Bulb Turbine Units cost low about 20%.

Description of drawings

The energy conversion relation figure of accompanying drawing 1-two operating modes of drawing water and generate electricity;

Accompanying drawing 2-axle extend through flow type pump turbine two dimension runner illustraton of model;

Accompanying drawing 3-axle extend through flow type pump turbine structural representation, figure a is the structural representation of pump turbine, and figure b is Fig. 5 a worm's eye view, and figure c is blade horizontal positioned structural representation, and figure d is the vertical displacement structure schematic representation of blade;

Accompanying drawing 4-runner bucket sectional view, three the cross section F1 ~ F3 in blade space cross section,

Accompanying drawing 5,6, the 7th is aerofoil profile spatial mode line on three cross sections of F1, F2 in the accompanying drawing 4, F3 successively;

Wherein: S1-inlet segment runner, S2-stator section runner, S3-runner envelope, S4-s type draft tube runner, 1-water inlet cross section, 2-deflector, 3-deflector, 4-movable guide vane, 5-runner, the 51-blade, 52-runner boss, 53-draft cone, 6-s type draft tube runner, 7-main shaft, 8-generator, 9-draft tube water outlet cross section, b 2-blade minimum thickness, b 1-maximum blade thickness.

Embodiment

Accompanying drawing discloses the structural representation of a preferred embodiment of the invention without limitation, explains technological scheme of the present invention below with reference to accompanying drawing.

Embodiment

A kind of low water head axle extend through flow type of present embodiment pump turbine blade, shown in Fig. 3 ~ 7, described blade to be shaped as the thick middle both sides thin, be space three-dimensional distortion curved surface, its spatial character is represented by three cross sections of upper, middle and lower; Simultaneously novel molded lines is adopted in the intermediate cross-section, and this novel molded lines is to be combined by the end to end curve in two ends up and down, is that initial point is set up system of coordinates, x with the central point of each molded lines in three cross sections 1,x 2,x 3Be the abscissa of each coordinate, y 1, y 2, y 3Be the y coordinate of each coordinate, F1, F2, F3 represent three molded lines respectively, and then this blade part branch is as shown in the table in the position of rectangular coordinate system:

Numbering 101 102 103 104 105 106 107 108 109 ? On the F1 _ X1 -59.552 -50.0 -40.0 -20.0 0.0 20.0 30.896 40.0 52.836 ? On the F1 _ Y1 16.119 15.821 14.627 9.851 1.642 -6.119 -9.851 -12.090 -14.776 ? Numbering 109 110 111 112 113 114 115 116 101 ? Under the F1 _ X1 40.0 30.896 20.0 0.0 -20.149 -40.0 -52.985 -59.552 40.0 ? Under the F1 _ Y1 -13.284 -11.940 -8.806 -1.493 6.866 12.985 14.776 16.119 -13.284 ? Numbering 201 202 203 204 205 206 207 208 209 210 On the F2 _ X2 -48.507 -40.0 -30.0 -20.0 -10.0 10.0 20.0 30.0 40.0 44.179 On the F2 _ Y2 18.209 18.507 15.522 12.687 7.463 -3.284 -8.657 -12.090 -15.075 -16.269 Numbering 210 211 212 213 214 215 216 217 218 201 Under the F2 _ X2 40.000 30.000 21.343 10.000 -10.000 -20.000 -30.000 -40.000 -48.507 40.000 Under the F2 _ Y2 -15.821 -14.478 -11.940 -7.164 3.284 8.955 13.582 16.418 18.209 -15.821 Numbering 301 302 303 304 305 306 307 308 309 310 On the F3 _ X3 -35.522 -30.597 -25.0 -15.0 -5.0 5.0 15.0 25.0 30.597 35.821 On the F3 _ Y3 17.910 17.761 16.418 13.284 6.567 -0.597 -8.507 -15.224 -18.209 -19.701 Numbering 310 311 312 313 314 315 316 317 318 301 Under the F3 _ X3 35.821 30.597 25.0 15.0 5.0 -5.0 -15.0 -25.0 -30.597 -35.522 Under the F3 _ Y3 -19.701 -19.403 -18.209 -14.179 -6.567 1.194 9.701 14.328 16.119 17.910

Wherein Fn goes up reaching the standard grade of n molded lines of expression, under the Fn roll off the production line (n=1,2,3) of n molded lines of expression; On the Fn _ Xn represents the xn coordinate figure of molded lines Fn upper curve, on the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn upper curve; Under the Fn _ Xn represents the xn coordinate figure of molded lines Fn lower curve, under the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn lower curve.

Preferably: equation is as follows after six curve matches in described three cross sections:

The F1-F1 upper curve:

y 1?=?4.139e-005?x 1 3?-0.0003387x 1 2?-0.4065x 1?+?1.731

The F1-F1 lower curve:

y 1?=?4.574e-005?x 1 3?-0.0006619x 1 2?-0.4059x 1?-1.201

The F2-F2 upper curve:

y 2=8.084e-005x 2 3?-0.0004966x 2 2?-0.5473x 2+?2.202

The F2-F2 lower curve:

y 2=8.481e-005x 2 3?+0.001491x 2 2?-0.54141x 2-1.947

The F3-F3 upper curve:

y 3=0.0001776x 3 3?-0.003233x 3 2?-0.7519x 3+?2.966

The F3-F3 lower curve:

y 3=0.0002241x 3 3?+0.001285?x 3 2?-0.8037x 3-2.674

A kind of low water head axle extend through flow type pump turbine of present embodiment as shown in Figure 2, comprise pump turbine, reversible motor, runner and deflector, described runner comprises inlet segment runner, stator section runner, runner envelope and the S type draft tube runner that connects successively; Described reversible motor is arranged on the S type draft tube runner outside, described water turbine comprises runner and movable guide vane, described runner is connected by the spindle of passing runner with the reversible motor, and the reversible motor is positioned at a side of runner, and the opposite side of runner is provided with deflector; Described deflector comprises deflector and movable guide vane, and described movable guide vane is installed on the deflector; Described runner is arranged in the runner envelope simultaneously, and movable guide vane is arranged in the stator section runner, and deflector is arranged in inlet segment runner and the stator section runner;

Runner comprises blade, runner boss, draft cone three parts as described in Figure 3, and described runner boss edge circumferentially evenly is provided with the blade that a plurality of cross sections are symmetrical airfoil, and sluicing one side of runner boss is installed draft cone; Described blade to be shaped as the thick middle both sides thin; The initial laying angle θ of described blade is 39 °, and adjusted value is between-3 °~3 °.The blade number of runner is 3.The blade of runner is a kind of new and effective blade, and it combines the advantage of tubular turbine blade and through-flow pump blade, double water turbine and the water pump done of runner is used, and have the excellent energy conversion performance.As shown in Figure 4, the runner bucket of chatting is space three-dimensional distortion curved surface, and its spatial character can be represented by a plurality of cross sections, can form space curved surface, blade minimum thickness b according to crucial molded lines again by the crucial molded lines of control point match 2With maximum ga(u)ge b 1Ratio be 0.28~0.35.

The present invention only is only applicable to the low water head pumped storage power station, and using head is 5 ~ 20 meters, can adopt high speed operation because the runner size is less, and its motion speed is 500rad/s ~ 1000rad/s.

Its operation is divided into two kinds of operating modes, i.e. pump operating condition and water turbine operating mode, and pump operating condition is about to pump turbine and obtains kinetic energy by motor the water of lower storage reservoir is risen to upper storage reservoir, and consumed power converts electrical energy into the potential energy of upper storage reservoir water; The water turbine operating mode is that the water of upper storage reservoir is converted to electric energy by water turbine with potential energy, produces electric energy, by flowing to lower storage reservoir behind the water turbine.The present invention can not only two-way working, and transformation of energy performance is preferably arranged, and the runner energy conversion efficiency reaches more than 80% when forward generates electricity; Oppositely reach more than 75% during pump operating condition.

The preferred specific embodiment of described the present invention only is used for the explanation embodiments of the present invention by reference to the accompanying drawings above; rather than as the restriction to aforementioned goal of the invention and claims content and scope; any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment all still belong to the technology of the present invention and rights protection category.

Claims (4)

1. low water head axle extend through flow type pump turbine blade is characterized in that: described blade to be shaped as the thick middle both sides thin, be space three-dimensional distortion curved surface, its spatial character is represented by three cross sections of upper, middle and lower; Simultaneously novel molded lines is adopted in the intermediate cross-section, and this novel molded lines is to be combined by the end to end curve in two ends up and down, is that initial point is set up system of coordinates, x with the central point of each molded lines in three cross sections 1,x 2,x 3Be the abscissa of each coordinate, y 1, y 2, y 3Be the y coordinate of each coordinate, F1, F2, F3 represent three molded lines respectively, and then this blade part branch is as shown in the table in the position of rectangular coordinate system:
Numbering 101 102 103 104 105 106 107 108 109 ? On the F1 _ X1 -59.552 -50.0 -40.0 -20.0 0.0 20.0 30.896 40.0 52.836 ? On the F1 _ Y1 16.119 15.821 14.627 9.851 1.642 -6.119 -9.851 -12.090 -14.776 ? Numbering 109 110 111 112 113 114 115 116 101 ? Under the F1 _ X1 40.0 30.896 20.0 0.0 -20.149 -40.0 -52.985 -59.552 40.0 ? Under the F1 _ Y1 -13.284 -11.940 -8.806 -1.493 6.866 12.985 14.776 16.119 -13.284 ? Numbering 201 202 203 204 205 206 207 208 209 210 On the F2 _ X2 -48.507 -40.0 -30.0 -20.0 -10.0 10.0 20.0 30.0 40.0 44.179 On the F2 _ Y2 18.209 18.507 15.522 12.687 7.463 -3.284 -8.657 -12.090 -15.075 -16.269 Numbering 210 211 212 213 214 215 216 217 218 201 Under the F2 _ X2 40.000 30.000 21.343 10.000 -10.000 -20.000 -30.000 -40.000 -48.507 40.000 Under the F2 _ Y2 -15.821 -14.478 -11.940 -7.164 3.284 8.955 13.582 16.418 18.209 -15.821 Numbering 301 302 303 304 305 306 307 308 309 310 On the F3 _ X3 -35.522 -30.597 -25.0 -15.0 -5.0 5.0 15.0 25.0 30.597 35.821 On the F3 _ Y3 17.910 17.761 16.418 13.284 6.567 -0.597 -8.507 -15.224 -18.209 -19.701 Numbering 310 311 312 313 314 315 316 317 318 301 Under the F3 _ X3 35.821 30.597 25.0 15.0 5.0 -5.0 -15.0 -25.0 -30.597 -35.522 Under the F3 _ Y3 -19.701 -19.403 -18.209 -14.179 -6.567 1.194 9.701 14.328 16.119 17.910
Wherein Fn goes up reaching the standard grade of n molded lines of expression, under the Fn roll off the production line (n=1,2,3) of n molded lines of expression; On the Fn _ Xn represents the xn coordinate figure of molded lines Fn upper curve, on the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn upper curve; Under the Fn _ Xn represents the xn coordinate figure of molded lines Fn lower curve, under the Fn _ Yn represents the yn coordinate figure (n=1,2,3) of molded lines Fn lower curve.
2. according to the described low water head axle extend through flow type of claim 1 pump turbine blade, it is characterized in that: equation is as follows after six curve matches in described three cross sections:
The F1-F1 upper curve:
y 1?=?4.139e-005?x 1 3?-0.0003387x 1 2?-0.4065x 1?+?1.731
The F1-F1 lower curve:
y 1?=?4.574e-005?x 1 3?-0.0006619x 1 2?-0.4059x 1?-1.201
The F2-F2 upper curve:
y 2=8.084e-005x 2 3?-0.0004966x 2 2?-0.5473x 2+?2.202
The F2-F2 lower curve:
y 2=8.481e-005x 2 3?+0.001491x 2 2?-0.54141x 2-1.947
The F3-F3 upper curve:
y 3=0.0001776x 3 3?-0.003233x 3 2?-0.7519x 3+?2.966
The F3-F3 lower curve:
y 3=0.0002241x 3 3?+0.001285?x 3 2?-0.8037x 3-2.674。
3. one kind based on the described low water head axle extend through flow type of claim 1 pump turbine, it is characterized in that: comprise pump turbine, reversible motor, runner and deflector, described runner comprises inlet segment runner, stator section runner, runner envelope and the S type draft tube runner that connects successively; Described reversible motor is arranged on the S type draft tube runner outside, and described runner is connected by the spindle of passing runner with the reversible motor, and the generating operation mode suction side of runner is provided with deflector; Described runner is arranged in the runner envelope simultaneously, and deflector is arranged in inlet segment runner and the stator section runner; Described runner comprises runner boss, draft cone, and described runner boss edge circumferentially evenly is provided with the blade that a plurality of cross sections are symmetrical airfoil, and sluicing one side of runner boss is installed draft cone; The initial laying angle of described blade is 39 °, and adjusted value is between-3 °~3 °.
4. according to the described low water head axle extend through flow type of claim 3 pump turbine, it is characterized in that: described deflector comprises deflector and movable guide vane, and described movable guide vane is installed on the deflector afterbody, and the number of movable guide vane is 8; Movable guide vane is arranged in the stator section runner, and deflector is arranged in inlet segment runner and the stator section runner; Described deflector head is spherical, and the middle part is cylindrical body, and afterbody is taper, and described cone angle is 18o, and the head of described deflector, middle part are arranged in the inlet segment runner, and described deflector afterbody is arranged in the stator section runner.
CN201310049897.2A 2013-02-07 2013-02-07 A kind of low water head axle extend through flow type pump turbine and blade thereof CN103206331B (en)

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CN103498749A (en) * 2013-09-27 2014-01-08 河海大学 Small-sized mixed-flow pump turbine for low water head pumped storage power station
CN103573531A (en) * 2013-10-21 2014-02-12 河海大学 Ocean current energy power generation type bidirectional impeller of water turbine with flow guide cover
CN103742337A (en) * 2013-12-27 2014-04-23 河海大学 Bilateral guide vane through-flow turbine with elliptical runners
CN103742351A (en) * 2013-12-27 2014-04-23 河海大学 Bidirectional through-flow turbine for generating power by tide
CN103807084A (en) * 2014-01-24 2014-05-21 中国船舶重工集团公司第七○二研究所 Eddy elimination device in hydraulic turbine runner body
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CN106545453A (en) * 2015-09-23 2017-03-29 东方电气集团东方电机有限公司 Tidal current energy water turbine runner and its hydraulic turbine
CN107076162A (en) * 2014-08-11 2017-08-18 韩国生产技术研究院 Reversible type pump turbine includes the Optimization Design of its self-generating system and reversible type pump turbine
CN107165769A (en) * 2017-07-25 2017-09-15 河海大学 A kind of streams miniature power generating device
CN107313889A (en) * 2017-05-27 2017-11-03 杨广平 Vertical self-contained conduit type hydroelectric generating group
CN107401469A (en) * 2017-09-22 2017-11-28 河海大学 A kind of two-way rotary wheel of water turbine of low water head shaft tubular
CN107503978A (en) * 2017-09-19 2017-12-22 河海大学 A kind of high-lift higher specific speed mixed-flow pump
CN107762965A (en) * 2017-09-19 2018-03-06 河海大学 A kind of axial-flow pump of high-lift low noise
CN107829874A (en) * 2017-09-26 2018-03-23 河海大学 A kind of hydraulic turbine to be generated electricity based on combined type multistage marine tidal-current energy
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CN103498749B (en) * 2013-09-27 2016-03-02 河海大学 A kind of small-scale mixed-flow pump turbine for low water head pumped storage power station
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