Online crude oil water content analyzer - ADICHINA

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Measurement principle: The electrical properties of oil-water mixtures (two-phase liquids) are measured; the dielectric constant of water (68–80) is very different from that of pure oil (2.5). Utilizing this difference, the ratio of oil to water can be determined by examining the changes in the electrical properties of the oil-water mixture. file:///C:/Users/ADMINI~1/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg A sinusoidal oscillation signal is sent to the mixed liquid; as this signal passes through the liquid under test, changes in the oil-to-water ratio cause variations in the phase and amplitude of the oscillation signal. In cases with a low water content (oil-in-water configuration), phase (capacitance) changes are significant, while in cases with a high water content (water-in-oil configuration), amplitude (impedance) changes are notable. At the signal reception end of the instrument, these changes in phase (capacitance) and amplitude (impedance) are detected, and by using phase-sensitive and amplitude-based models along with temperature compensation, the percentage of water content can be determined, enabling accurate and stable measurement over the full range (0-100%) of water content in oil. The accuracy of the new type of aqueous gauge is not affected by factors such as medium viscosity, density, temperature, and pressure. Key features: · Real-time, online, accurate measurement of water content in oil. · Dual-channel measurement with three modes, providing optimal performance for applications with low water content, across the full range, and high water content. · 5 density calibration curves to better address application conditions with different oil types. · There are various testing probes available; specialized probes are provided for light oil, heavy oil, thick oil, as well as complex oils with high wax content, coal tar, and asphalt, to meet the various measurement requirements. · Industrial-grade chips with professional design ensure long-term reliable and stable operation of the instrument. · Proprietary detection algorithms and flexible calibration, along with a unique 12-point calibration method, enhance the accuracy of measurements. · It can measure fluid temperatures up to 130°C. Various connection options such as bypass, plug-in, and flow-through are available to meet on-site requirements. · Integrated design: signal generation and analysis take place within a single explosion-proof enclosure, providing protection against various field interferences. · It is insensitive to the salt content, density, viscosity, and flow rate of the liquid being tested. Technical specifications: Measurement range and accuracy
Water content in oil: Measurement ranges – 0-5%, 0-10%, 0-to-inversion point, 0-100%, 70-100%. Accuracy: ±0.1%, ±0.2%, ±0.5%, ±2%, ±1%. Resolution: 0.01%, 0.01%, 0.1%, 0.1%, 0.1%.

Mechanical specifications: Temperature sensor – digital sensor. Temperature compensation range: up to 130°C. Material: 316 stainless steel. Maximum operating pressure: 144 kg/square centimeter. Maximum fluid temperature: 130°C. Electronic components can operate from -20°C to 85°C. Electrical interface: M20X1.5 (internal thread).

Power supply and explosion protection: Power requirement: 24VDC, 3W. Explosion protection rating: Ex dIIB T6, zone 1, IP66. Corrosion protection: NACE MR¬0175. Suitable for acidic liquids. Output: 4-20mA, MODBUS RS-485. Relay contacts: 24VDC at 1A.

Application areas: Oil pipelines for transporting crude oil and refined products. · Crude oil dehydration monitoring · Metering monitoring system for loading and unloading oil in tank trucks · Monitoring of water content during oil loading and unloading on tankers · Online detection of water content in coal tar and oils with high wax content · Monitoring and control of the oil-water interface in three-stage separators · Electrodesalination monitoring, automatic drainage monitoring for large tanks · Oil metering in refineries and petrochemical plants · Ethylene glycol/water mixtures, water/inorganic substance mixtures