Fault Diagnosis System for Heat Transfer Oil Circulation

Abstract

The invention discloses a thermal oil circulation fault diagnosis system, which belongs to the technical field of boiler fault diagnosis. The invention adopts a multi-modular monitoring method to refine the monitoring objects, and sets monitoring modules including multiple fault modes such as heat transfer oil leakage, heat transfer oil deterioration, heat transfer oil overtemperature and overpressure, and pipe wall fouling, and identifies the operating status of the system Divide, realize fault prediction according to different states, realize daily maintenance and fault handling of the system, have wide monitoring coverage and high monitoring efficiency, and can be applied to various fault situations of steam-heat transfer oil dual-medium boiler systems. At the same time, the present invention adopts the NARX neural network training method to perform prediction, effectively learns and processes large sample data of the boiler system, and improves prediction accuracy and efficiency.

Description

technical field [0001] The invention belongs to the technical field of boiler fault diagnosis, and in particular relates to a thermal oil circulation fault diagnosis system. Background technique [0002] As an organic heat carrier with good performance, heat transfer oil is more and more widely used in boiler systems as a heat transfer agent due to its high temperature and low pressure heat transfer performance, good thermal stability, good fluidity, and low environmental impact. exchange medium. However, traditional heat transfer oil boilers have the problems of high exhaust gas temperature, low thermal efficiency, and insufficient output, and the heat transfer oil is prone to over-temperature cracking and deterioration, and its deteriorated products are easy to scale and coke on the tube wall of the heating surface, resulting in uneven heating of the furnace tubes. Local overheating may even cause safety accidents such as pipe explosion and fire leakage. The steam-heat t...

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Problems solved by technology

However, this method is only aimed at the air-smoke system in the cold start-up process, and cannot monitor the entire boiler system in various states, and its adaptability to the steam-heat transfer oil dual-medium boiler system needs to be verified

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