A Vibration Fault Diagnosis Method for Boiler Flue Air System
A technology of fault diagnosis and smoke wind, which is applied to instruments, measuring devices, and measuring ultrasonic/sonic/infrasonic waves, etc. It can solve the problems of a large amount of manpower input and the diagnosis process is only for the fan itself, so as to reduce the workload and comprehensively diagnose vibration faults. Effect
Active Publication Date: 2021-08-17
HUADIAN ELECTRIC POWER SCI INST CO LTD
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Problems solved by technology
[0002] At present, most of the vibration fault diagnosis of the boiler flue gas system adopts the method of on-site test by technicians, which involves a lot of manpower input, and due to the limitation of on-site measurement point conditions, the diagnosis process is only for the fan itself, and does not involve the fan in the entire flue gas system. wind system research
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.
[0023] figure 1 1, 2, 3, and 4 are the installation positions of the vibration velocity sensors, 5, 6, 7, and 8 are the installation positions of the pressure sensors, and 9 is the lead-out position of the baffle opening signal.
[0024] image 3 is the layout of the fan measuring points, and 10, 11, 12, and 13 are the installation positions of the vibration velocity sensors.
[0025] (1) Assuming that the vibration velocity v measured at the air duct measuring point 1 is too large (the same is true for measuring points 2, 3, and 4), then collect relevant quantities: the vibration velocity v at this point, the vibration frequency f at this point, Pressure P, opening of fan inlet baffle at No. 9 measuring point ɑ. ...
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The invention discloses a method for diagnosing vibration faults of a boiler flue air system. At present, most of the vibration fault diagnosis of the flue gas system adopts the method of on-site test by technicians. Due to the limitation of on-site measurement point conditions, the diagnosis process is only for the fan itself, and the fan is not studied in the entire flue gas system. One-sidedness. Artificial intelligence diagnosis can not only greatly reduce the workload of technicians on-site to deal with equipment vibration problems, but also realize the monitoring of the entire flue gas system and obtain comprehensive data, which is suitable for diagnosing the vibration caused by the coupling of various factors in the flue gas system, greatly improving the vibration Accuracy of fault diagnosis. The present invention sets multiple measuring points at the flue duct and the fan body, comprehensively collects the vibration data of the flue gas system, establishes an artificial intelligence vibration fault diagnosis and analysis system, finds out the various causes of the vibration, and realizes the automatic diagnosis of the equipment. It is good to improve the safety of the boiler flue air system.
Description
technical field [0001] The invention relates to a method for diagnosing vibration faults of a flue gas system of a boiler, which is used for monitoring the entire flue gas system, obtaining comprehensive data, and comprehensively analyzing and diagnosing vibration faults in an artificial intelligence manner. Background technique [0002] At present, most of the vibration fault diagnosis of the boiler flue gas system adopts the method of on-site test by technicians, which involves a lot of manpower input, and due to the limitation of on-site measurement point conditions, the diagnosis process is only for the fan itself, and does not involve the fan in the entire flue gas system. study in wind systems. With the rapid development of my country's electric power industry, the automation level of domestic large and medium-sized units has generally increased, the number of operation and maintenance personnel has decreased, and artificial intelligence diagnosis of vibration faults h...
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IPC IPC(8): G01H17/00G01D21/02
CPCG01D21/02G01H17/00
Inventor 徐伟轩郭宝仁王政先邴汉昆孙科王羽骆仁达
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD