Thermal power plant high-temperature/high-pressure pipeline state monitoring and risk assessment system

Abstract

The invention discloses a thermal power plant high-temperature/high-pressure pipeline state monitoring and risk assessment system, and belongs to the technical field of metal materials and automatic control. The system comprises a pipeline wall temperature monitoring system, a pipeline heat preservation monitoring system, a pipeline thermal expansion monitoring system, a pipeline support hanger stress monitoring system, a pipeline vibration monitoring system, a pipeline corrosion monitoring system, a pipeline leakage monitoring system, a pipeline stress monitoring system and a pipeline nondestructive and physicochemical detection historical data analysis system. After the system is applied to a thermal power plant, digital analysis can be carried out to finely guide production, the equipment reliability and operation safety are improved, the pipeline performance is efficiently monitored, the service life of a pipeline and accessory equipment is prolonged, and the accident rate and the shutdown maintenance time are reduced; and the production and operation cost can be reduced, economic benefits are increased, the labor intensity of workers is greatly relieved, the working environment is improved, the number of workers is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a high-temperature / high-pressure pipeline state monitoring and risk assessment system in a thermal power plant, belonging to the technical field of metal materials and automatic control. Background technique [0002] At present, the DCS system of domestic thermal power units mainly focuses on the parameters and operating conditions of the internal medium of the pipeline, and monitors the temperature, pressure, flow, etc. of the medium in real time. There is no online monitoring of the status of the pipeline and the hanger itself, and it mainly relies on professionals to conduct on-site inspections to find out whether there are problems, which results in untimely and incomplete material status feedback. [0003] At the same time, every time a major repair is performed, the pipelines and hangers are thermally inspected one by one, and then the pipelines and hangers are adjusted; the replacement, adjustment, pipeline modification,...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a well-designed state monitoring and risk assessment system for high-temperature and high-pressure pipelines in thermal power plants, which can overcome the status information of high-temperature and high-pressure p

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