Flow-increasing type intelligent water turbine system with involute-shaped tail water flow increasing device

Abstract

The invention relates to a flow-increasing type intelligent water turbine system with an involute-shaped tail water flow increasing device. The flow-increasing type intelligent water turbine system comprises a through-flow water-turbine generator set and is characterized in that the flow-increasing type intelligent water turbine system further comprises the involute-shaped tail water flow increasing device and a tail water flow state controller; the involute-shaped tail water flow increasing device is composed of a force-applying induction unit, a flow-increasing transmission unit, a flow-increasing release unit and an involute-shaped rotating wheel unit with involute-shaped rotating wheel blades, wherein the force-applying induction unit, the flow-increasing transmission unit, the flow-increasing release unit and the involute-shaped rotating wheel are sequentially and parallelly arranged in the axial direction; the involute-shaped rotating wheel blades are gradually stretched according to an involute in the axial direction of an involute-shaped rotating wheel hub and evenly arranged on the circumferential inner wall of the involute-shaped rotating wheel hub in a spatial cross twisted shape; and the tail water flow state controller controls the magnitude of the blade angle beta 1 of rotating wheel blades of the through-flow water-turbine generator set, the magnitude of the blade angle beta 2 of the involute-shaped rotating wheel blades, and the magnitude of the moving distance x of induction driving rods. According to the flow-increasing type intelligent water turbine system, a large amount of residual kinetic energy in a tail water flow can be fully utilized to generate electricity.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation, in particular to a flow-increasing intelligent water turbine system with an involute tail water flow increasing device. Background technique [0002] my country is rich in low-head hydraulic resources, which are generally located in economically developed areas in the middle and lower reaches of rivers. In recent years, the economies of these regions have developed rapidly, and the demand for electricity has grown rapidly. However, these areas are generally energy-stressed areas, and the developable medium and high head hydropower resources have been developed as early as the 1990s. In order to meet the needs of rapid economic development in the region, people turned to develop low-head resources. Tubular hydropower stations are the best way to develop low-head hydraulic resources, and are generally used for water heads below 25m. Compared with medium and high water head...

AI Technical Summary

Problems solved by technology

The device overcomes the existing problems of single power generation method and low power generation efficiency, and realizes high-power power generation

However, this device only relies on the curved deflector with a half-crescent shape in cross-section to divert and gather energy, and its energy gathering effect is minimal, so water energy cannot be fully utilized, resulting in a waste of resources

[0007] To sum up, the existing combined hydroelectric power generation devices are only the series connection of different numbers of power generation devices, without considering the problem of the reduction of device efficiency caused by the change of working conditions, so the maximum performance of the device cannot be fully utilized

At the same time, the energy-gathering device only relies on the reduction of the cross-sectional area to increase the flow, and cannot dynamically adjust the amount of flow increase according to the size of the incoming flow, resulting in variable frequency of output power and poor performance

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