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Fluid flow rate and flow measurement device and method

A flow measurement device, fluid flow rate technology, applied in the direction of fluid velocity measurement, measurement device, liquid/fluid solid measurement, etc., can solve problems such as blanks, and achieve the effect of eliminating adverse effects

Inactive Publication Date: 2012-01-18
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research and application of this technology is mainly limited to the detection of ion concentration at the capillary scale and below the diameter in the field of analytical chemistry, and it is basically blank in the field of conventional industrial flow rate and flow measurement.

Method used

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  • Fluid flow rate and flow measurement device and method
  • Fluid flow rate and flow measurement device and method

Examples

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Embodiment Construction

[0020] like figure 1As shown, the fluid velocity flow measurement device includes an AC excitation source 1, a first metal flange connector 2, a first ground wire 3, a second metal flange connector 4, a second ground wire 5, a signal processing module 6, a data Acquisition module 7, microcomputer 8, insulation measurement pipeline 9, first detection electrode 10, first inductance module 11, third inductance module 12, excitation electrode 13, second detection electrode 14, second inductance module 15, by insulation measurement The pipeline 9, the first detection electrode 10, the first inductance module 11, the third inductance module 12, the excitation electrode 13, the second detection electrode 14, and the second inductance module 15 constitute a three-electrode non-contact conductivity sensor. The outer wall of the first detection electrode 10, the excitation electrode 13 and the second detection electrode 14 are installed at equal intervals, the excitation electrode 13 is...

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Abstract

The invention discloses a fluid flow rate and flow measurement device and method. The fluid flow rate measurement device comprises an alternating current excitation source, a three-electrode noncontact type conductivity sensor, a two-end grounding structure, a signal processing module, a data acquiring module and a microcomputer. The invention realizes that a noncontact conductivity measurement technology is used in fluid flow rate and flow measurement. Two groups of independent conductivity signals are obtained by using the three-electrode noncontact type conductivity sensor, and processed by adopting relevant technologies to obtain fluid flow rate and flow. According to the adopted series resonance method, the adverse influences on the measurement range and the sensitivity of a coupling capacitor are effectively eliminated. By adopting the two-end grounding structure, the adverse influences to the measurement precision by floating voltages at two ends of a pipeline are eliminated, and an insulation measurement pipeline is facilitated to be connected with an industrial site metal pipeline. The fluid flow rate and flow measurement device has the advantages of simple structure, low cost, non contact, no pressure loss, wide application range and the like, and provides an effective path for measuring the flow rate and the flow in the pipeline.

Description

technical field [0001] The invention relates to fluid velocity and flow detection technology, in particular to a fluid velocity and flow measurement device and method. Background technique [0002] Fluids in pipelines are widely found in petrochemical, food, pharmaceutical, metallurgy, public engineering, and environmental protection industries. On-line measurement of flow rate and flow rate is of great significance for production operations, reliable operation, and quality control in industrial production processes. The existing flow rate and flow measuring instruments are relatively mature for the flow rate and flow measurement technology of pure fluid in conventional pipes in the industrial production process, but for the flow rate and flow measurement of conductive fluids with dirt, suspended matter and solid impurities, etc. , the current research work is still very limited, and the relevant measurement methods are relatively lacking. [0003] Capacitive coupling non-c...

Claims

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Application Information

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IPC IPC(8): G01P5/22G01F1/712
Inventor 黄志尧许文博王保良冀海峰李海青
Owner ZHEJIANG UNIV
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