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Electromagnetic flow meter

A technology of electromagnetic flowmeter and measuring tube, which is applied in the application of electromagnetic flowmeter to detect fluid flow, volume/mass flow generated by electromagnetic effect, liquid/fluid solid measurement, etc. It can solve problems such as affecting liquid tightness and reducing surface pressure. , to achieve the effect of suppressing deformation

Active Publication Date: 2015-09-16
YOKOGAWA ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the surface pressure between the ground ring 222 and the lining material 223 is reduced, which may affect the liquid tightness

Method used

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Examples

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Embodiment Construction

[0055] Exemplary embodiments of the present invention will be described with reference to the drawings. figure 1 is a cross-sectional view of a coupling portion between the flange portion 121 of the measuring tube 120 and the pipe-side flange portion 311 of the electromagnetic flowmeter 100 according to the first exemplary embodiment of the present invention. At the same time, the coupling structure between the electromagnetic flowmeter 100 and the pipeline can be Figure 13 The prior art coupling structure shown is the same.

[0056] Such as figure 1 As shown, the lining material 123 is bonded or welded to the inner side of the measuring tube 120 of the electromagnetic flowmeter 100 (a part of the region including the coupling side of the flange portion 121 ). When the electromagnetic flowmeter side flange part 121 and the pipe side flange part 311 are coupled together, the electromagnetic flowmeter side flange part 121 and the pipe side flange part 311 are fastened togeth...

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Abstract

An electromagnetic flow meter includes a measurement tube having a flange part, the flange part being configured to be coupled to a piping-side flange by a bolt fastening, a lining material configured to cover an inside of the measurement tube and an inner periphery area having a predetermined diameter of a coupling-side surface of the flange part, and an earth ring configured to be placed between the flange part and the piping-side flange. The earth ring has a ring plate part and a wall part formed along an outer periphery of the ring plate part.

Description

technical field [0001] The present disclosure relates to an electromagnetic flowmeter, and more particularly, to a technique for suppressing deformation of a lining material configured to cover the inside of a measuring tube. Background technique [0002] Electromagnetic flowmeters configured to measure the flow rate of conductive fluids using electromagnetic induction are widely used for industrial purposes because they are durable and have high precision. The electromagnetic flowmeter is configured to allow a conductive fluid to be measured to flow into a measuring tube to which a magnetic field is applied in an orthogonal direction, and to measure the generated electromotive force. Since the electromotive force is proportional to the flow rate of the measured fluid, the volume flow rate of the measured fluid can be obtained based on the measured electromotive force. [0003] In an electromagnetic flowmeter, a measuring tube has an electrode for electromotive force measur...

Claims

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Application Information

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IPC IPC(8): G01F1/58
CPCG01F1/58G01F1/586F16L23/02F16L23/18
Inventor 山下英晓今井洋一黑木善彦大村耕治
Owner YOKOGAWA ELECTRIC CORP
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