CN114088927A - Online health monitoring method for lubricating oil - Google Patents
Online health monitoring method for lubricating oil Download PDFInfo
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- CN114088927A CN114088927A CN202111462623.7A CN202111462623A CN114088927A CN 114088927 A CN114088927 A CN 114088927A CN 202111462623 A CN202111462623 A CN 202111462623A CN 114088927 A CN114088927 A CN 114088927A
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- lubricating oil
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
Abstract
The invention discloses an online health monitoring method for lubricating oil, which is implemented by a monitoring system, wherein the monitoring system comprises a monitoring sensor, a data processor, a data server and an operation and maintenance monitoring end, the monitoring sensor monitors quality parameters of the lubricating oil in an oil way of the lubricating system in real time, the data processor processes and stores the data to the data server in real time, the oil quality is classified according to a processing result, and the result is transmitted to the operation and maintenance monitoring end. The invention can monitor various key indexes of the lubricating oil in real time, judge the health state of the lubricating oil and output the health state.
Description
Technical Field
The invention relates to the technical field of lubricating oil monitoring, in particular to an online health monitoring method for lubricating oil.
Background
At present, in the actual operation process of a friction pair or a gear mechanism, a large amount of metal particles with different sizes are generated due to the abrasion of a mechanical part; contacting with air to generate oxidation; the phenomena of leakage of working medium and pollution of lubricating oil and the like are caused due to sealing failure, so that the lubricating oil finally fails and emulsifies in different degrees, the lubricating effect of a rotating part is deteriorated, and the mechanical part is failed and damaged, even has a dangerous result. Most of the existing schemes utilize an empirical formula or a clustering algorithm to perform online detection on the lubricating oil on the basis of a sensor detection technology.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an online health monitoring method for lubricating oil.
In order to achieve the purpose, the invention provides the following technical scheme to realize the purpose:
a lubricating oil on-line health monitoring method is based on a monitoring system, wherein the monitoring system comprises a monitoring sensor, a data processor, a data server and an operation and maintenance monitoring end, and comprises the following steps:
the monitoring sensor monitors lubricating oil in an oil way of the lubricating oil system in real time, intermittently acquires real-time original data reflecting parameters of oil quality, and transmits the data to the data server for storage through an RS485 communication protocol;
the data processor calls real-time original data stored in the data server to perform missing value processing, normalization processing and trend prediction calculation, then performs error analysis and CUSUM algorithm analysis on the processed data, finally judges the state of the lubricating oil according to the analyzed data through a decision algorithm, classifies the quality of the oil, and transmits all the calculated data to the data server for storage;
and the data server remotely transmits the real-time original data reflecting the parameters of the oil quality and the oil quality classification result to an operation and maintenance monitoring end for visual presentation.
Preferably, the operation and maintenance monitoring terminal is a computer or a mobile phone.
Preferably, the monitoring sensor collects real-time raw data of parameters reflecting the quality of the oil product every 30-60 s.
Preferably, when the oil quality classified by the data processor exceeds a preset threshold value, the data processor transmits an early warning signal to the operation and maintenance monitoring end for visual presentation.
Preferably, the data processor is a PLC controller.
Compared with the prior art, the invention has the beneficial effects that: monitoring various key indexes of the lubricating oil in real time, judging the health state of the lubricating oil according to the trend of the parameters changing along with time, and performing visual presentation through an operation and maintenance monitoring end.
Detailed Description
The following provides a detailed description of embodiments of the invention.
A lubricating oil on-line health monitoring method is based on a monitoring system, wherein the monitoring system comprises a monitoring sensor, a data processor, a data server and an operation and maintenance monitoring end, and comprises the following steps:
the monitoring sensor monitors lubricating oil in an oil way of the lubricating oil system in real time, intermittently acquires real-time original data reflecting parameters of oil quality, and transmits the data to the data server for storage through an RS485 communication protocol;
the data processor calls real-time original data stored in the data server to perform missing value processing, normalization processing and trend prediction calculation, then performs error analysis and CUSUM algorithm analysis on the processed data, finally judges the state of the lubricating oil according to the analyzed data through a decision algorithm, classifies the oil quality, and transmits all calculation results to the data server for storage;
and the data server remotely transmits the real-time original data reflecting the parameters of the oil quality and the oil quality classification result to an operation and maintenance monitoring end for visual presentation.
Preferably, the operation and maintenance monitoring terminal is a computer or a mobile phone.
Preferably, the monitoring sensor collects real-time original data of parameters reflecting oil quality every 30-60 s, more preferably every 30s, so that the collection frequency is improved, and the change of the oil quality can be found in time.
Preferably, when the oil quality classified by the data processor exceeds a preset threshold value, the data processor transmits an early warning signal to the operation and maintenance monitoring end for visual presentation.
Preferably, the data processor is a PLC controller.
The parameters measured on line in real time by the sensor have certain measurement drift and larger measurement uncertainty, so that the index value calculated by using an empirical formula has a larger fluctuation range and is easy to cause higher false alarm rate. The method utilizes less comprehensive parameter measurement, based on CUSUM algorithm, predicts the health state of the lubricating oil according to the trend of the parameter changing along with time, has higher real-time calculation efficiency due to limited sequence length, considers the uncertainty factor of the parameter real-time measurement, ensures that the prediction result is more accurate and reliable, can effectively reduce the false alarm rate of the system, provides more reliable information for the maintenance and repair of the equipment, and obviously reduces the operation and maintenance cost of the equipment.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (4)
1. A lubricating oil on-line health monitoring method is based on a monitoring system, the monitoring system comprises a monitoring sensor, a data processor, a data server and an operation and maintenance monitoring end, and the lubricating oil on-line health monitoring method is characterized in that: the method comprises the following steps:
the monitoring sensor monitors lubricating oil in an oil way of the lubricating oil system in real time, intermittently acquires real-time original data reflecting parameters of oil quality, and transmits the data to the data server for storage through an RS485 communication protocol;
the data processor calls real-time original data stored in the data server to perform missing value processing, normalization processing and trend prediction calculation, then performs error analysis and CUSUM algorithm analysis on the processed data, finally judges the state of the lubricating oil according to the analyzed data through a decision algorithm, classifies the oil quality, and transmits all the calculated data to the data server for storage;
and the data server remotely transmits the real-time original data reflecting the parameters of the oil quality and the oil quality classification result to an operation and maintenance monitoring end for visual presentation.
2. The online health monitoring method for lubricating oil according to claim 1, characterized in that: the operation and maintenance monitoring end is a computer or a mobile phone.
3. The online health monitoring method for lubricating oil according to claim 1, characterized in that: the monitoring sensor collects real-time original data of parameters reflecting the quality of the oil product every 30-60 s.
4. The online health monitoring method for lubricating oil according to claim 1, characterized in that: and when the oil quality classified by the data processor exceeds a preset threshold value, the data processor transmits an early warning signal to the operation and maintenance monitoring end for visual presentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111462623.7A CN114088927A (en) | 2021-12-02 | 2021-12-02 | Online health monitoring method for lubricating oil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111462623.7A CN114088927A (en) | 2021-12-02 | 2021-12-02 | Online health monitoring method for lubricating oil |
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| CN114088927A true CN114088927A (en) | 2022-02-25 |
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| CN202111462623.7A Pending CN114088927A (en) | 2021-12-02 | 2021-12-02 | Online health monitoring method for lubricating oil |
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