Intelligent inspection system and method in thermal power plant

Abstract

The invention discloses an intelligent inspection system and method in a thermal power plant. The system comprises a wireless industrial Ethernet network, an inspection data center and a multifunctional inspection terminal, wherein the inspection data center and the multifunctional inspection terminal are in wireless connection with the wireless industrial Ethernet network; the inspection data center is connected with a DCS (Distributed Control System) and SIS (Safety Instrumented System) of the power plant, has synchronous clock periods and is capable of inquiring, reading and writing real-time and historic databases of the DCS and the SIS of the power plant; the inspection data center drives the multifunctional inspection terminal to sample data of an inspection target via the wireless industrial Ethernet network and exchanges data with the multifunctional inspection terminal. The invention further provides the inspection method of the system. According to the method, the clock of the DCS system of the power plant is synchronized via wireless communication, various diagnosis signals are conveniently collected by using the multifunctional inspection terminal and are integrated with original DCS data, and trend analysis and evaluation are carried out on inspection data under similar working conditions so as to prompt inspectors to master running states of equipment and parts and maintain and preserve the equipment and the parts in time, so that the equipment maintenance level and the running safety and reliability of the system are increased.

Description

technical field [0001] The invention relates to the technical field of inspection of thermal power plant equipment, in particular to an intelligent inspection system and method for thermal power plant. Background technique [0002] The thermal power generation system is huge and complex, and the safe and stable operation of a large number of equipment and components is related to the safety and stability of the entire power system. Most of these equipment and components have been in the dangerous operating environment of high temperature, high pressure, and high speed for a long time, and special personnel need to be arranged Carry out regular fixed-point inspections to ensure the safety of the system and hope to discover potential dangers in advance to avoid accidents. [0003] Due to the complexity and variety of inspection equipment, the types of data and physical quantities required for inspection by various equipment are different, so the data collection and analysis of...

AI Technical Summary

Problems solved by technology

In addition, key parameters such as vibration and temperature of equipment components change with the change of system working conditions, and the inspection level that relies on manual methods is limited by the level of inspection personnel and data analysis personnel, so it is difficult to guarantee

In recent years, many inspection management terminals or systems based on barcode or radio frequency technology have emerged, which are convenient to ensure that there are no omissions in the inspection points, facilitate on-site data entry, and realize inspection data statistics and alarm prompts, but on the one hand, their detection functions are limited. , mostly focuses on the management of the inspection process, and is independent of the unit control system. The inspection function depends heavily on the experience and level of the inspection personnel, and does not meet the needs of modern smart power plants and digital power plants.

On the other hand, the existing patrol inspection technology mainly relies on the brains of the patrol inspectors for rough analysis and judgment, and the accuracy and depth of data processing are severely limited. Reverse reminder function, due to the independence of the system, it is difficult to upgrade the function, so that the role of inspection work and the value of inspection data cannot be fully utilized

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