Method for detecting tile vibration sensor of power plant
A detection method and sensor technology, applied in instruments, measuring devices, measuring ultrasonic/sonic/infrasonic waves, etc., can solve the problem that the error sensitivity value cannot correspond to the configuration parameters of the power plant system, and cannot truly reflect the operation of the rotating machinery shaft system.
Pending Publication Date: 2021-06-08
XIAN THERMAL POWER RES INST CO LTD
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If the error is too large, not only the sensitivity value cannot correspond to the configuration parameters of the power plant system, but also it is related to the
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[0037] The present invention will be further described below in conjunction with the accompanying drawings.
[0038] like figure 1 As shown, the detection method of a power plant tile vibration sensor provided by the present invention, the specific implementation method is as follows:
[0039] The detection of tile vibration sensor includes: standard physical quantity input, tile vibration sensor, wiring loop, vibration control detection system, and screen display. By implementing the sensitivity detection of the tile vibration sensor and the judgment of the reference sensitivity error, the ultimate goal is to achieve:
[0040] (1) It can accurately assess whether the reference point sensitivity error exceeds the maximum allowable error value;
[0041] (2) Be able to determine whether the tile vibration sensor is suitable for use in power plants, and ensure the accuracy and reliability of the sensors used in power plants;
[0042] (3) It can accurately provide the recommend...
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The invention discloses a method for detecting a tile vibration sensor of a power plant. The method comprises the following steps of: 1) mounting the sensor: mounting the tile vibration sensor; 2) implementing detection: measuring at a specified point of the tile vibration sensor to obtain a sensitivity display value; (3) detection result and judgment: obtaining a relative or absolute error of the sensitivity of the tile vibration sensor according to the tile vibration factory sensitivity indicating value and the actual detection value. On the basis that the frequency response and the amplitude linearity meet the requirements, when the sensitivity error of the reference point of the tile vibration sensor is within the maximum allowable error range, the tile vibration sensor is suitable for being used in a power plant; and a suitable installation direction is recommended. According to the invention, key indexes of the tile vibration sensor are detected to evaluate the applicability of the tile vibration sensor in a power plant, and the measurement precision and reliability of the tile vibration sensor; the accuracy of channel, alarm and protection action values of a power plant monitoring system can be verified; and safe operation of the unit is guaranteed.
Description
technical field [0001] The invention relates to a detection method of a tile vibration sensor in a power plant, which is suitable for measuring and judging the accuracy of the tile vibration sensor used in the power plant. Background technique [0002] The vibration of the shafting of the steam turbine generator set in a power plant is the main index for evaluating the performance of rotating machinery, and it is also one of the important indicators for inspecting the safe and economical operation of the unit. Some of its measuring points are included in the thermal protection system. Whether the measurement of these measuring points is accurate and whether the system performance is stable and reliable is very important to ensure the safe operation of the generator set. In order to make the protection action be issued correctly and ensure the accurate measurement of parameters, the sensor should be effective and reliable first, so the index of the tile vibration sensor is al...
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CPCG01H17/00
Inventor 瞿丽莉韦宣李思瑶王志浩由志勋党显洋孙衍星肖鹏李哲毓杨海燕赵婷婷张倩赵蒙
Owner XIAN THERMAL POWER RES INST CO LTD