Safety protection assembly for preventing over-speed of water turbine unit

Abstract

The invention discloses a safety protection assembly for preventing over-speed of a water turbine unit. The safety protection assembly comprises a machine body (1), wherein a rotation speed measurement module (2), a distance detection module (3), a power supply module (4) and a management module (5) are arranged on the machine body (1); during operation, the rotation speed measurement module (2) is used for monitoring the change size of the rotation speed during operation of the machine body (1), the distance detection module (3) is used for detecting distance information of a rotating part and a fixed part, the power supply module (4) is connected with the management module (5), and finally the detected information is processed by the management module (5); and a display module (6) is arranged on the machine body (1), and is used for displaying the rotating numerical value sensed in the operation of the machine body in real time. According to the safety protection assembly, the speedof the water turbine unit is monitored and adjusted, so that the water turbine unit is prevented from being out of control due to over-speed, judgment is made in time, then safety protection is carried out, and therefore safety of operation of the water turbine is effectively improved.

Description

technical field [0001] The invention relates to a water turbine. Background technique [0002] In hydroelectric power plants, when the current turbine unit is running with load and suddenly loads, since the guide vane cannot be closed instantaneously, the speed of the turbine will increase significantly during the process of closing the guide vane. When it rises above a certain value , it will cause serious overspeed out of control of the unit, the consequences are extremely serious, and there are certain deficiencies. Contents of the invention [0003] The purpose of the present invention is to provide a safety protection device that can effectively prevent the water turbine unit from overspeeding and out of control. [0004] The present invention is achieved like this. An overspeed safety protection component for a water turbine unit, including a body on which a speed measurement module, a distance detection module, a power supply module, and a management module are ar...

AI Technical Summary

Problems solved by technology

[0002] In hydroelectric power plants, when the current turbine unit is running with load and suddenly loads, since the guide vane cannot be closed instantaneously, the speed of the turbine will increase significantly during the process of closing the guide vane. When it rises above a certain value , it will cause serious overspeed and out of control of the unit, the consequences are extremely serious, and there are certain deficiencies

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