System for monitoring vibration status during water turbine blade rotation
A technology for monitoring systems and water turbines, applied to measuring devices, measuring ultrasonic/sonic/infrasonic waves, instruments, etc., can solve problems such as installation difficulties, blade rotor damage, and affecting the normal operation of water turbines, and achieve the effect of convenient installation and simple structure
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[0009] The present invention will be described in more detail below with reference to the drawings and embodiments.
[0010] As shown in the figure, the present invention is a monitoring system for the vibration condition of the blades of a water turbine when rotating. A protective cover 5 is provided outside the rotating blade 6, and four light sensors are arranged at equal intervals in the protective cover 5 relative to the position of the tip of the rotating blade 6 For the probe 4, the light emitted by the laser transmitter 2 enters the corresponding light sensing probe 4 through the incident fiber, and then enters the photoelectric receiver 1 through the exit fiber. The light sensing probe 4 is a module containing a lens 3.
[0011] The principle of the present invention is:
[0012] When the turbine is working, once the rotating blade 6 starts to rotate, a certain rotating blade 6 will generate a pulse signal when it passes a certain light sensing probe 4. If a certain rotating...
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