Online automatic metering instrument for storage tanks

Ⅰ、 Product Introduction:

The online automatic measuring instrument for storage tanks, also known as the multifunctional servo level gauge, is a new generation of measurement grade servo level gauge. It can accurately measure the liquid level, temperature, density, oil-water interface, tank bottom deformation and other data of the liquid. It can also measure the multi-point density and temperature of the oil in the tank, monitor the distribution of gradient density, and complete multiple device measurement functions with one instrument. The corresponding technology has obtained national invention patents.

The DSM type online automatic measuring instrument for storage tanks adopts the servo measurement principle for liquid level measurement. It uses two measurement methods, buoyancy and vibration frequency, to simultaneously monitor the liquid level, and automatically corrects it using actual height measurement and zero point correction, achieving high-precision measurement of the liquid level; The density is measured using the most advanced micro oscillator measurement principle, which directly measures the liquid density through frequency changes; High precision platinum resistance is used for temperature measurement, and the sensor is corrected while measuring the temperature; Water level measurement uses radio frequency admittance technology to determine the oil-water interface and eliminate interference from the emulsion layer. After the measurement is completed, the standard density and weight density will be automatically converted VCF、 Oil volume, water volume, and oil quality.

The liquid level accuracy of this equipment can reach ± 0.4mm, the density accuracy can reach ± 0.3kg/m3, the temperature accuracy can reach ± 0.1 ° C, and the oil-water interface accuracy can reach ± 2mm. It can achieve alarm monitoring and remote inventory functions, improve the safety management level of oil depot measurement, and completely replace manual measurement.

Ⅱ、 Functional features:

1. Replace manual measurement and eliminate manual measurement errors

2. It can continuously measure the density and temperature of the medium at multiple points, and timely detect the phenomenon of oil layering and uneven density distribution

3. It can monitor the density and temperature at any height online at fixed times, and automatically convert standard density and measured density VCF

4. Zero blind spot measurement of water level and precise measurement of tank bottom deformation, with an accuracy of ± 0.4mm

5. Wired sensors do not require battery power for multi-point temperature and density measurements, and are not affected by power supply capacity or low temperature environments

6. Convenient, fast, and intuitive remote online monitoring reduces the labor intensity of measuring personnel and also lowers the possibility of dangerous accidents