Integrated in-situ measuring method and system of slurry density and flow rate

Abstract

The present invention relates to in-situ slurry density and flow rate measuring method and system. On the insulated pipe conducting slurry flows through, exciting coil and integrated sensor are installed for simultaneous measurement of slurry flow rate, density and temperature; and the said three detected values are processed in microcomputer to obtain the slurry density and flow rate values through temperature compensation. The present invention has high measurement precision, and the measurement system is simple in structure, low in cost, stable and reliable and suitable for use in light industry, environment protection, food production and other fields, especially in papermaking to measure pulp density.

Description

Technical field: [0001] The invention relates to a method and system for measuring slurry concentration flow, in particular to an integrated online measurement method and system for slurry concentration flow. Background technique: [0002] The concentration and flow of slurry is an important detection object in the fields of light industry, environmental protection, food, etc. The flow of slurry, especially pulp, mud, etc. is a non-Newtonian fluid with viscosity, agglomeration, many suspended particles, complex components, and multiple parameters. Factors, it is more difficult to detect the fluid. To detect this kind of slurry, Coriolis (Coriolis) mass flowmeter is used in the existing measuring instruments. Although this instrument can measure the two fluid parameters of flow rate and density at the same time, it has high cost and high pressure. The loss is large, especially when the diameter of the pipe to be tested is large, it cannot be detected. For a long time, the m...

AI Technical Summary

Problems solved by technology

To detect this kind of slurry, Coriolis (Coriolis) mass flowmeter is used in the existing measuring instruments. Although this instrument can measure the two fluid parameters of flow rate and density at the same time, it has high cost and high pressure. Large loss, especially when the diameter of the pipe to be tested is large, it cannot be detected

For a long time, the method that has been widely used in engineering is to configure multiple measuring instruments to measure separately, such as density meters, thermometers and flowmeters. However, when using this method of measuring multiple instruments, since multiple sensors are set up separately, When used, they must be installed separately in the pipeline to be tested, which will cause installation troubles, high maintenance costs and low measurement accuracy.

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