Conduction oil circulation fault diagnosis system

A fault diagnosis system and fault diagnosis technology, which are applied in heat storage heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of the steam-conducting oil dual-medium boiler system adaptability to be verified, and the inability to monitor the boiler system. , to reduce the risk of overfitting, improve monitoring efficiency, prediction accuracy and high efficiency

Active Publication Date: 2021-07-09
ZHEJIANG UNIV
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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

Method used

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  • Conduction oil circulation fault diagnosis system
  • Conduction oil circulation fault diagnosis system
  • Conduction oil circulation fault diagnosis system

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Embodiment Construction

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] In a preferred embodiment of the present invention, a heat transfer oil circulation fault diagnosis system is provided, which is used for diagnosing the heat transfer oil cycle fault of a steam-heat transfer oil dual-medium boiler. The steam-heat transfer oil dual-media boiler is A boiler type that adds a heat transfer oil heat exchange circuit to a traditional steam cycle system. The diagnostic system sets up monitoring modules including multiple failure modes including heat transfer oil leakage, heat transfer oil deterioration, heat transfer oil overtemperature and overpressure, pipe wall fouling, etc. Carry out identification and division, realize fault prediction according to different states, and realize daily maintenance and fault handling of the system. Specifically, as figure 1 As shown, the functional modules of the diagnostic system ...

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Abstract

The invention discloses a conduction oil circulation fault diagnosis system, and belongs to the technical field of boiler fault diagnosis. According to the conduction oil circulation fault diagnosis system, a multi-modular monitoring method is adopted to refine a monitoring object, a monitoring module including multiple fault modes such as conduction oil leakage, conduction oil degradation, conduction oil overtemperature and overpressure, pipe wall scaling and the like is arranged, system operation states are recognized and divided, fault prediction is achieved according to different states, daily maintenance and fault processing of the system are achieved, the monitoring coverage is wide, the monitoring efficiency is high, and the system can be suitable for various fault conditions of the steam-conduction oil double-medium boiler system; and meanwhile, an NARX neural network training method is adopted for prediction, large sample data of the boiler system are effectively learned and processed, and prediction accuracy and efficiency are improved.

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...

Claims

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Application Information

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IPC IPC(8): F24H7/02F24H9/20
CPCF24H7/02F24H9/2007
Inventor 童哲铭杨琦童水光
Owner ZHEJIANG UNIV
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