Detection methods for oil water contamination (including detection instrument evaluation methods and indicators)
Oil water contamination is mainly formed under harsh environmental conditions, improper operation or equipment damage. Possible reasons include poor equipment sealing, exposure to high humidity environment, and intrusion of rain or water vapor into the oil during transportation, storage or use. Water contamination can lead to reduced oil performance, accelerated oxidation, equipment corrosion, and viscosity changes, which in turn affect the stable operation of the mechanical transmission system.
The harm of oil water contamination to equipment includes reduced lubrication effect, increased friction and wear, corrosion of parts, and reduced seal life, which can cause equipment failure, damage and shutdown.
The methods to prevent and control oil water contamination can be through sealing protection, environmental control, regular testing, equipment maintenance and the use of filters.
Ⅰ. Detection methods for oil water contamination
Detection of water contamination in oil is crucial to the normal operation of equipment and systems. The following are common oil water contamination detection methods and related information:
1. Detection method: water analysis method
Detection instrument: water analysis instrument
Evaluation method: Evaluate the degree of water contamination by analyzing the water content in the oil. Usually one thousandth (ppm) or one percent (%) is used as the unit.
Detection index: water content
2. Detection method: conductivity method
Detection instrument: conductivity instrument
Evaluation method: By measuring the conductivity of the oil, high water content will lead to increased conductivity.
Detection index: conductivity
3. Detection method: capillary method
Detection instrument: capillary water measuring instrument
Evaluation method: Using the capillary phenomenon, the water content is determined by observing the rising height of water in the capillary.
Detection index: water content
4. Detection method: infrared spectroscopy
Detection instrument: infrared spectrometer
Evaluation method: Analyze the concentration of water by detecting the absorption peak of water molecules in the oil.
Detection index: moisture content
Moisture content exceeding the specified value may cause oxidation, corrosion and other problems in the oil, so regular monitoring and control of moisture content is essential for the reliability and performance of equipment and systems. The test results are usually compared with industry standards or equipment manufacturers' recommendations to ensure the quality and reliability of the oil.
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