Integrated Storage-Tank Monitoring System
The integrated storage-tank monitoring system consists of an FBG wavelength interrogator, temperature sensors, liquid-level sensors (proprietary technology covered by a national invention patent), density sensors and transmission fiber-optic cables. It continuously monitors tank temperature and visually displays the distribution of temperature-measurement points for safety monitoring of tank farms. It also monitors liquid level, temperature, pressure, mass and density in real time, presenting tank operating conditions and changes through graphical and numerical interfaces. The solution keeps electrical power off the tanks, preventing accidents caused by energized primary instruments on tanks. It provides a safe, reliable liquid-level measurement and information-management platform for automated, information-based monitoring of oil depots, supporting accurate measurement and safe operation in the petroleum and petrochemical industries. The entire temperature-sensing network consists of optical fiber. Both sensing and signal transmission are entirely electrical-power-free, corrosion-resistant and intrinsically explosion-proof. Excellent insulation prevents the attraction of lightning; even following a lightning strike, the system can continue operating without compromising the monitored equipment. Grating-based liquid-level measurement keeps electricity off the tanks and prevents accidents caused by energized primary instruments, providing a safe and reliable platform for depot monitoring. The sensing section is entirely fiber-optic, with no voltage or current signals; it is antistatic, spark-free and corrosion-resistant. Fiber-optic cables connect the FBG sensors to the FBG wavelength analyzer in the safe area, transmitting optical signals and preventing hazardous voltages from entering the hazardous area. High measurement accuracy greatly reduces oil-measurement errors.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Temperature Measurement Accuracy [System Design Target] | ±1℃ |
| Resolution [System Design Target] | -0.1℃ |
| Temperature Measurement Range [System Design Target] | -20~120℃ |
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