Pump-turbine with shock absorption structure

Abstract

The invention discloses a pump-turbine with a shock absorption structure. The pump-turbine with the shock absorption structure comprises a bearing base, a first slide rod, a second slide rod and a second drive motor, wherein a shock absorption plate is fixed to the upper end of the bearing base; the head end and the tail end of each of the first slide rod and the second slide rod are fixed to thefirst slide rod separately; a limit stop block is installed on the outer wall of the shock absorption plate; a movable frame is connected to the upper end of the fixed frame; the second drive motor isinstalled in a waterproof storage frame, and a blade is connected to the output end of the second drive motor; and a lower ring is installed at the lower side of the outer wall of the blade, and an upper crown is installed at the upper side of the outer wall of the blade. In the pump-turbine with the shock absorption structure, the bearing base has the function of stably supporting for the pump-turbine, so that improvement for the balance performance during the working of the pump-turbine is benefited, and the case of collapse in the working process of the pump-turbine due to too high water flow, is avoided; and moreover, the shock absorption plate has the function of shock absorption and buffer for an amplitude generated by the pump-turbine in the working process.

Description

technical field [0001] The invention relates to the technical field of water pump turbines, in particular to a water pump turbine with a shock absorbing structure. Background technique [0002] Pump-turbine is a new type of pumped-storage unit that appeared in the 1930s. Compared with the energy-storage unit connected in series with a water turbine and a water pump, its weight is greatly reduced and its cost is reduced, so it is widely used. The product classification can be divided into mixed flow, inclined Flow type and tubular type, as the name implies, the pump turbine can be used as both a water pump and a water turbine, also known as a reversible water turbine. When the water turbine is running, the runner rotates clockwise, and when it rotates counterclockwise, it is used as a water pump. The water pump turbine is mainly used In pumped storage power plants, it is therefore extremely widely used in modern developments. [0003] The modern pump-turbine does not have th...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pump-turbine with a shock-absorbing structure, to solve the problem that the pump-turbine used in the above-mentioned background technology does not have the ability to freely adjust the height of the pump-turbine due to the depth of the water potential during the working process, so that the pump-turbine The working efficiency is not good, and in the case of excessive water flow, it is easy to cause the cracking of the rotating blades, which makes the service life of the pump turbine not good, and the pump turbine does not have the function of shock absorption during the working process, making the pump turbine The problem of poor overall stability of the pump turbine

Images