Resonance cylinder oil densimeter

Abstract

The invention belongs to the technical field of fluid density measuring, and discloses a resonance cylinder oil densimeter. The densimeter comprises an amplifying circuit, a processing circuit, a vibration excitation coil and a vibration picking coil which are arranged in the amplifying circuit, a resonance cylinder which is arranged between the vibration excitation coil and the vibration pickingcoil, magnetic force can be generated by the vibration excitation coil to allow the resonance cylinder wall to displace faintly, the vibration picking coil is allowed to generate electrodynamic forceby the variation of the distance between the cylinder wall and the vibration picking coil, and an electric signal is collected and processed by the processing circuit to achieve temperature compensation. By means of the densimeter, the demand of partially adopting volume flow meter to collect road oil distributing real-time density is met; density at multiple points in a storage tank is collectedaccording to measuring demands; single-point liquid level density real-time monitoring is achieved; artificial sampling procedures are not needed, and the distribution situation of the liquid densityin the storage tank is detected to effectively discovered oil layering and nonuniform density distribution; bottom oil inlet density is monitored in real time, density alarming is achieved, and oil mixing accidents can be discovered in advance.

Description

technical field [0001] The invention belongs to the technical field of fluid density measurement, and in particular relates to a resonant cylinder type oil density meter. Background technique [0002] Density measurement is an important physical parameter to characterize the properties of liquids. Industrial processes require sufficiently accurate and continuous density measurement data for static management of inventory and dynamic measurement. The application of density meters in the petroleum industry is mainly reflected in the oil density measurement of oil storage tanks in oil depots. The measurement of oil density in storage tanks can determine the phenomenon of oil stratification and uneven density distribution. The traditional oil density measurement of oil storage tanks adopts the manual sampling method, which requires technicians to collect oil products at the specified liquid level with a sampling bucket on the top of the large tank, and use a glass density meter ...

AI Technical Summary

Problems solved by technology

The automatic metering system of the oil depot storage tank is mainly based on the mixed method. The density is measured and calculated by the pressure transmitter. The accuracy is low, and the density distribution of the oil product and the density of the designated point cannot be measured. Restricts the development of storage tank metering automation and metering management informatization

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