Combined pad type stepped key phase debugging device and debugging method

Abstract

The invention provides a combined cushion type stepped key phase debugging device and a debugging method. The device comprises a first cushion block, a second cushion block and a third cushion block, the thicknesses of the first cushion block, the second cushion block and the third cushion block are sequentially increased, the first cushion block is embedded in the second cushion block and rotationally connected with the second cushion block, the second cushion block is embedded in the third cushion block and rotationally connected with the third cushion block, and the second cushion block rotates to enable part of the second cushion block to be arranged outside the third cushion block. And when the first cushion block and the second cushion block are respectively positioned at limiting positions for embedding, the first cushion block, the second cushion block and the third cushion block form a cuboid. The first cushion block, the second cushion block and the third cushion block which are different in thickness are connected in an embedded mode to form key-phase signal adjusting echelon of different distances, distance adjustment of three different forms can be completed on the whole, elastic rubber pads are arranged on the second cushion block and the third cushion block according to different types of eddy current sensors, and adjustment allowance is reserved. repeated adjusting and debugging can be carried out; and the three cushion blocks can form an integral cuboid through a rotating structure, so that the device is convenient to carry and suitable for being popularized and used in the field of water turbine debugging.

Description

technical field [0001] The invention relates to the field of water turbine debugging, in particular to a combined pad-type ladder-type key phase debugging device and a debugging method. Background technique [0002] The key-phase signal not only provides the speed signal for the turbine, but also provides the reference point of the frequency and phase of the unit, which is the most important signal of the online monitoring system of the hydro-generator unit. Therefore, when the unit is started and debugged, the most experienced personnel are generally required to install and debug the signal, so as to ensure the success of the one-time test of the unit. [0003] Hydropower plants usually use the feeler gauge method + electrical measurement method to debug the key phase sensor. [0004] 1. Choose at least one set of feeler gauges with a thickness of more than 10mm, and the accuracy of each feeler gauge piece is 0.01mm-1mm. Choose suitable n feeler gauge pieces to simulate t...

AI Technical Summary

Problems solved by technology

[0008] 5. Since the current mainstream eddy current sensors are all integrated probes, and the probes contain high-tech technologies such as integrated circuits, the feeler gauge and eddy current sensor repeatedly cross the surface of the sensor under the condition of interference fit, and it is easy to Damage to the sensor probe (the cost of the probe accounts for more than 80% of the sensor cost)

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