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Runner of opposite-rotating through flow turbine capable of bidirectionally generating electricity

A tubular water turbine and water turbine technology, applied in renewable energy power generation, hydropower generation, machines/engines, etc., can solve problems such as low efficiency and complex structure, and achieve the effect of simple structure, wide high-efficiency area, and low loss

Inactive Publication Date: 2006-09-06
TSINGHUA UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

At present, there are two-way tubular water turbines using S-shaped blades in tidal power stations. This unit has only one set of runner blades that rotate in one direction. Although it can realize two-way power generation, its structure is complicated and its efficiency is not high, so it has not been widely used.

Method used

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  • Runner of opposite-rotating through flow turbine capable of bidirectionally generating electricity
  • Runner of opposite-rotating through flow turbine capable of bidirectionally generating electricity

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Embodiment Construction

[0013] figure 1 Schematic diagram of the structure of the counter-rotating through-flow runner provided by the present invention. This counter-rotating through-flow runner includes two sets of runners using S-shaped blades 4, namely the front runner 2 and the rear runner 3, and both sets of runners use the same S-shaped blade 4 to form a Counter-rotating tubular runner. The two sets of runners are arranged in the axial direction, and the installation direction of the inlet and outlet sides of the blades of the front runner 2 is opposite to that of the blades of the rear runner 3, that is, the inlet side of the blades of the front runner is used as the rear rotor. The outlet side of the runner blade is placed, and the outlet side of the front runner blade is placed as the inlet side of the rear runner blade, such as figure 2 shown. The rotation directions of the front and rear runners are opposite, and the speed ratio is 1-2. The distance between the two sets of runners in...

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Abstract

The invention relates to a disrotation through flow hydraulic turbine wheel with bidirectional generation. It is characterized in that: it comprises two groups of wheels that reversely mounted along the middle axle of hydraulic turbine, which are mounted with S-shape blades in same number and in reverse rotational directions. The invention can realize bidirectional generation, without guide blade. It has simple structure, while the back wheel uses the circular amount at the outlet of front wheel; the water flows out axially. And the positive and passive directions have same efficiency, to fully utilize the tide energy.

Description

technical field [0001] A counter-rotating tubular water turbine runner capable of bidirectional power generation belongs to the technical field of fluid machinery and engineering equipment, and particularly relates to the design technical field of tubular water turbines. Background technique [0002] Tubular turbine is a kind of hydropower equipment widely used in low water head conditions, and is also widely used in tidal power stations. The water flow axially flows into the blades of the runner, pushes the runner to do work, and flows out axially, basically without changing the flow direction. Tubular turbines are generally suitable for water heads below 25 meters, with outputs ranging from hundreds of kilowatts to hundreds of thousands of kilowatts. [0003] With the development of industry and agriculture and the advancement of science and technology, the development and utilization of new energy is becoming more and more urgent. At present, in the development of marin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B3/04F03B3/12
CPCY02E10/223Y02E10/20
Inventor 杨魏刘树红吴玉林
Owner TSINGHUA UNIV
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