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Fault diagnosis method and system for main transport pump

A technology for fault diagnosis and main pump, applied in pump testing, liquid displacement machinery, machine/engine, etc., can solve problems such as single offline vibration signal, inability to effectively identify weak faults of main pump, and easy to be drowned by noise , to avoid information loss, timely and accurately determine the root cause of the fault, and avoid safety accidents

Inactive Publication Date: 2017-07-07
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0005] The present invention provides a method and system for fault diagnosis of a main pump to solve the problem that in the prior art, when the fault diagnosis is performed on the main pump, the obtained off-line vibration signal or online vibration signal is relatively single and easily submerged by noise. Problems leading to ineffective identification of potentially subtle faults in main pumps

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  • Fault diagnosis method and system for main transport pump
  • Fault diagnosis method and system for main transport pump

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0023] Considering that in the prior art, when using either offline detection or online detection to obtain the data to be analyzed to characterize the state of the main pump, since the obtained offline vibration signal or online vibration signal is relatively simple and easily submerged by noise, the As a result of the problem that the w...

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Abstract

The invention provides a fault diagnosis method and system for a main transport pump. The method can comprise the following steps of: obtaining at least two to-be-analyzed data; pre-processing the at least two to-be-analyzed data; extracting characteristic data used for fault diagnosis according to the preprocessed result data; and performing fault diagnosis on the main transport pump according to the extracted characteristic data. According to the embodiment of the invention, at least two to-be-analyzed data is obtained, information loss during analysis of a single vibration signal is effectively avoided, overall monitoring for a state of the main transport pump is realized, and problems that potential weak faults and the like of the main transport pump cannot be effectively recognized as a single signal is easily submersed by noises in the prior art are solved; and furthermore, the to-be-analyzed data is preprocessed, and noise data in the to-be-analyzed data is removed, so that more precise to-be-analyzed data can be obtained, a fault source is timely and accurately judged, and repair and maintenance effects of the main transport pump are effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of petroleum machinery, in particular to a fault diagnosis method and system for a main pump. Background technique [0002] The main pump unit can be used for pressurized transportation of crude oil and refined oil, and has the characteristics of high power, high head, large flow rate and complex structure. Since the main pump unit has been operating in a harsh environment with high pressure, high speed, and many impurities for a long time, any improper design, manufacture, installation, operation, and maintenance will cause various failures of the main pump during operation, resulting in The normal transportation of oil and gas is hindered, and even caused major accidents such as main pump damage, oil leakage, casualties, etc., posing a huge threat to the safe operation and economic benefits of production equipment, and causing huge economic losses to enterprises, society and the country , and even had a m...

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Application Information

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IPC IPC(8): F04B51/00
CPCF04B51/00
Inventor 田中山段礼祥刘胜张来斌赖少川王金江刘维国白堂博史铁峰张继旺黄晨袁壮钟龙刘子旺刘兆全陈瑞典
Owner CHINA PETROLEUM & CHEM CORP
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