Self-detection system and self-detection method for steam turbine monitoring instrument
A technology for monitoring instruments and steam turbines, applied in the direction of test/monitoring control system, general control system, control/regulation system, etc., can solve the problems of time-consuming inspection coverage, easy omission, heavy workload, etc., to increase safety and reliability, improve The effect of accuracy and comprehensiveness
Pending Publication Date: 2021-10-29
陕西能源麟北发电有限公司
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Problems solved by technology
[0005] To sum up, we can see that the current instrument inspection work in power plants has the problems of heavy workload, low manual inspection efficiency, time-consuming and small inspection coverage, which is easy to miss.
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[0023] like figure 1 The steam turbine self-inspection system shown includes monitoring instruments, DCS system, power plant real-time database, self-inspection database server, calculation server, data display server and display. , rotational speed and other data. The DCS system is the internal system of the power plant that can collect the values of each monitoring instrument and transmit them to the real-time database of the power plant for storage. The self-inspection data server can retrieve the real-time monitoring data of the corresponding monitoring instruments from the real-time database of the power plant. The detection data server stores the pre-set reasonable range of each monitoring instrument value (this range includes the range range of each monitoring instrument and the cluster range of each monitoring instrument value under the specific working condition of the steam turbine) and the data correlation and continuity data of each detection instrument set, the ...
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The invention discloses a self-detection system and a self-detection method for a steam turbine monitoring instrument. The system reads monitoring instrument implementation data from a real-time database of a power plant through a self-checking database server, combines a reasonable numerical value range of each monitoring instrument stored in the self-checking database server and a correlation and persistence data set among data of each monitoring instrument, and calculates through a computer server, self-checking of the instrument is carried out by monitoring the measuring range of the instrument, the numerical value concentration range of the instrument under the specific working condition and the trend change of the instrument; normal operation of the instrument is ensured, and therefore the instrument inspection accuracy and comprehensiveness are improved, and the safety and reliability of operation of a power plant steam turbine are improved.
Description
technical field [0001] The invention relates to a monitoring instrument self-inspection system and a method, in particular to a power plant steam turbine monitoring instrument self-inspection system and a detection method. Background technique [0002] The steam turbine is one of the three core equipments of the power plant. Due to the complexity of the system, the large number of parts, and the high degree of automation of the power plant control system, a large number of measuring points are often installed, such as a 1000MW four-cylinder four-cylinder The exhaust steam turbine unit is equipped with more than 450 monitoring instruments. These instruments are mainly used to monitor the temperature, flow, pressure, vibration, speed and other signals of the equipment and circulating working fluid, so as to ensure that the steam turbine is in a controllable, safe and efficient state. basis of operation. [0003] Similar to the safety inspection of a car every time it is start...
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IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 王小良张世永薛群龙王鹏韩飙
Owner 陕西能源麟北发电有限公司