Thermal power plant steam pipeline real-time state information collection and risk prediction system

Abstract

The invention relates to a thermal power plant steam pipeline real-time state information collection and risk prediction system, and belongs to the technical field of metal materials and automatic controlling. The system is characterized in that different sensors are installed on steam pipelines and each suspension frame of the pipelines, and the sensors are connected with a computer to collect and analyze the working conditions of the pipelines. The system has the advantages that the monitoring of the state of the steam pipelines is timely, rapid and visualized, the reliability and safety ofthe operation of units are greatly improved, and the economical performance of the units are greatly improved by feed forward control and state maintenance; the state of equipment is judged through astate monitoring means, an equipment characteristic evaluating means and a risk prediction means to recognize early signs of faults to make judgement on faulted parts, the level of the faulted parts and the fault developing trend, and therefore scientific reference bases are provided for state maintenance.

Description

Technical field [0001] The invention relates to a real-time state information collection and risk prediction system for steam pipelines of thermal power plants, belonging to the technical field of metal materials and automatic control. Background technique [0002] At present, the domestic thermal power unit DCS system mainly focuses on the parameters and operating conditions of the medium in the steam pipeline, and conducts real-time monitoring of steam temperature, pressure, flow, etc. This is mainly at the system level, such as the Chinese patent application number 200410018142.7. For the equipment level, especially the material status of the basic equipment, there is no monitoring means. It mainly relies on professionals to conduct on-site inspections to find out whether there are problems. This results in untimely and incomplete material status feedback. [0003] At the same time, pipes and supports and hangers are adjusted during each repair, and strict physical and chemical ...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a rationally designed real-time state information collection and risk prediction system for steam pipelines in thermal power plants, which can solve the problem of not being able to monitor the pipeline operation status in real time, It can also judge the safety risk of the steam pipeline according to the change of the secondary stress caused by the change of the steam parameters during the peak shaving period, and the displacement state parameters

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