A Quick Calibration Method for Comprehensive Tester of Steam Turbine Speed ​​Control System

A technology of a comprehensive tester and speed control system, which is applied in the testing of machinery/structural components, vehicle testing, instruments, etc., can solve the problems of inability to quantify, poor objectivity of hearing and visual judgment, etc., to improve the use efficiency and reduce calibration. Cost and maintenance cost, the effect of improving detection efficiency

Active Publication Date: 2019-01-04
HUADIAN ELECTRIC POWER SCI INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a quick calibration method for a comprehensive tester of a steam turbine speed control system with reasonable design, which solves the shortcomings of poor objectivity and inability to quantify by hearing and visual judgment

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  • A Quick Calibration Method for Comprehensive Tester of Steam Turbine Speed ​​Control System
  • A Quick Calibration Method for Comprehensive Tester of Steam Turbine Speed ​​Control System

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0035] see figure 2 , the embodiment of the present invention includes the following steps:

[0036] Step 1. Install detection equipment on the steam turbine speed control system comprehensive tester 4; the detection equipment includes a signal generator 1, a detection probe 2 and a detection cable 3, and the detection probe 2 is set on the signal generator 1; the detection probe 2 is two , the two detection probes 2 are respectively connected with the probes of the steam turbine speed control system comprehensive tester 4 with detection cables 3 to ensure good contact and no looseness.

[0037] Step 2. Power on the signal generator 1 and set parameters, so that the signal generator 1 can send out known DC switch ...

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Abstract

The invention provides a rapid calibration method for a comprehensive tester of a steam turbine speed regulating system, and aims to overcome the defects of poor objectivity and incapability of quantifying due to judgment by listening with ears and observing with eyes. The rapid calibration method comprises the following steps: mounting detection equipment on the comprehensive tester of the steam turbine speed regulating system, wherein detection probes are arranged on a signal generator, and are connected with a probe of the comprehensive tester of the steam turbine speed regulating system respectively; powering on the signal generator and setting parameters; measuring a forward transmission waveform of a signal transmitted by the signal generator; connecting the comprehensive tester of the steam turbine speed regulating system and the signal generator to a DEH (Digital Electric Hydraulic) system of a steam turbine, and testing time delays of loops of the DEH system of the steam turbine; connecting the same signal to each test point needing to be used of the comprehensive tester of the steam turbine speed regulating system in sequence, and analyzing measurement deviation of each test point; analyzing a detection result, analyzing an abnormal phenomenon occurring during measurement, and if necessary, repeating the above detection flow time after time till a cause of the problem is found and the problem is solved.

Description

technical field [0001] The invention relates to a quick calibration method for a comprehensive tester of a speed regulating system of a steam turbine. Background technique [0002] Since the development of the comprehensive tester for the steam turbine speed control system, it has the advantages of simple measurement method and high measurement accuracy, and has always attracted attention, such as the Chinese patent application number 200920016099.9. [0003] The image obtained by the comprehensive tester of the steam turbine speed control system is as follows: figure 1 It can be seen from the figure that the measurement accuracy is high. [0004] The steam turbine speed control system comprehensive tester can test the steam turbine load rejection test, steam turbine static and dynamic OPC test, steam turbine valve closing time test, steam turbine extraction check valve closing time test, steam turbine performance under static and dynamic conditions of the unit. Whether th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 张士龙赵玉柱邹晓辉徐厚达庞乐邴汉昆
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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