Oil monitoring system

Oil monitoring is usually to monitor one or more oil parameters, mainly monitoring objects such as particle size, moisture, abrasive concentration and additives, and to determine the state.

By means of optical, electrical, magnetic and other analytical means, the lubricating oil or working medium collected will be analyzed for the relevant physical and chemical performance indicators, and the particles such as wear and pollutants contained in it will be detected. Finally, the lubrication and abrasive state information of mechanical equipment will be obtained, so as to judge the current working condition and predict the future working condition of the equipment and provide effective basis for the correct maintenance of the equipment. To achieve the purpose of preventive maintenance, this monitoring and analysis method is oil analysis technology, also known as equipment wear condition monitoring technology.

Oil monitoring system is divided into offline monitoring system and online monitoring system.

Offline monitoring mainly adopts the way of regular sampling, the collected oil samples are sent to the corresponding physical and chemical laboratory for analysis, to judge the quality state and service life of the oil. In this way, the required oil sample parameters can be obtained in a more comprehensive way, which can make a more accurate judgment of equipment wear state and oil condition. But its disadvantages are also relatively obvious. The fixed oil sample needs to be taken out for processing offline, and the laboratory test takes a long time, which will also delay the judgment of oil quality and the implementation of measures. The equipment is also relatively expensive, and for example, the wind turbine can not be sampled for periodic inspection, which is the limitation of off-line inspection. Relatively speaking, accuracy becomes the only advantage of offline detection.

Online lubricating oil condition monitoring is to determine the running condition of equipment through real-time monitoring of in-use hydraulic oil, lubricating oil, etc. under the condition of ensuring the normal operation of equipment, which can effectively avoid major accidents and carry out targeted maintenance and repair. Online oil monitoring does not need to measure and analyze all parameters of oil, it indirectly reflects the relative change value by obtaining the relevant information of monitoring index or comparing with the standard value. Due to the influence of online physical conditions, the accuracy has an error range of about 1 level with the offline detection value. Enterprises generally choose the appropriate detection method according to their own needs and conditions.

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