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

Abstract

The invention relates to a flow increasing type water turbine system with a horn-shaped tail water flow increasing device. The system comprises a tubular water turbine generator set, and is characterized by further comprising a horn-shaped tail water flow increasing device and a tail water flow state controller, the horn-shaped tail water flow increasing device is composed of a stress sensing unit, a flow increasing transmission unit, a flow increasing release unit and a horn-shaped rotating wheel unit which are sequentially arranged in parallel in the axial direction, the horn-shaped rotatingwheel unit is provided with horn-shaped rotating wheel blades, the horn-shaped rotating wheel blades are gradually stretched in the axial direction along a horn-shaped rotating wheel hub according toa horn line and evenly arranged on the circumferential inner wall of the horn-shaped rotating wheel hub in a space crossed warp shape, and the tail water flow state controller respectively controls the blade angle beta 1 of rotating wheel blades of the tubular water turbine generator set, the blade angle beta 2 of the horn-shaped rotating wheel blades and the moving distance x of a sensing driving rod. The residual kinetic energy in tail water flow of the tubular water turbine generator set can be sufficiently provided for an electric generator for outputting high-quality electric energy.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation, in particular to a flow-increasing water turbine system with a suona-shaped 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 power st...

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

Images