Shut-off valve convenient for hydraulic transition and control for tubular water turbine

Abstract

The invention discloses a shut-off valve convenient for hydraulic transition and control for a tubular water turbine. The shut-off valve includes a central shaft and a signal circuit board used for transmitting signals to a controller to control a drive motor, a tubular elastic body pipe and a connecting section used for connecting with a chainring and transmitting torque separately sleeve the central shaft, one end of the elastic body is connected with the central shaft in a transmission mode, and the other end of the elastic body is connected with the connecting section. A sensing circuit board is arranged the outer side wall of the elastic body, and the sensing circuit board includes a deformation sensor arranged on the outer side wall of the elastic body for inducing the torque, a wireless signal transmitting module for outputting torque signals of the deformation sensor, and a power receiving coil. The signal circuit board includes a wireless signal receiving module for receivingthe torque signals, a power coil which interacts with the power receiving coil to form a power supply current on the power receiving coil, and input and output terminals connected to the controller. The shut-off valve convenient for the hydraulic transition and control for the tubular water turbine can ensure the stable transmission of a detection signal, and improving the detection accuracy is further facilitated.

Description

technical field [0001] The invention relates to the technical field of hydraulic generators, in particular to a shut-off valve for a tubular hydraulic turbine which is convenient for hydraulic transition and control. Background technique [0002] With the enhancement of people's awareness of energy conservation and environmental protection, hydropower as a green energy is developing vigorously. Among them, the tubular turbine occupies an important position in the development of low-head and large-flow hydropower resources in my country, and is widely used in relatively abundant and economical water resources. Water resource development projects in the relatively developed central and eastern regions. When the tubular hydroelectric generator is running, it is often due to changes in working conditions, changes in the operating parameters of the power system, or external disturbances, resulting in changes in water conservancy performance such as water pressure and flow, and the...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of heavy weight, large opening and closing strokes and uneven force of the existing cut-off valves of tubular water turbines, and to provide a through-flow valve that is convenient for hydraulic transition and control. Shut-off valves for water turbines can greatly reduce the space required for valve opening and closing, and effectively balance the water pressure on the valves, while significantly reducing the weight of the valves

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