Electromagnetic flow rate meter for conduit pipe and method for manufacturing same

A technology of electromagnetic flowmeter and flow pipe, which is applied in the direction of detecting fluid flow, volume/mass flow generated by electromagnetic effects, measuring flow/mass flow, etc., which can solve the problems of electromagnetic flowmeter popularization, manufacturing cost, Increased maintenance costs and other issues, to achieve the effect of reduced manufacturing costs and high liquid tightness

Inactive Publication Date: 2014-07-09
TAKAHATA PRECISION JAPAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The basic structure of such a complicated and high-precision electromagnetic flowmeter increases the manufacturing cost and maintenance cost of the electromagnetic flowmeter.
As a result, it is difficult to popularize electromagnetic flowmeters

Method used

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  • Electromagnetic flow rate meter for conduit pipe and method for manufacturing same
  • Electromagnetic flow rate meter for conduit pipe and method for manufacturing same
  • Electromagnetic flow rate meter for conduit pipe and method for manufacturing same

Examples

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Embodiment Construction

[0069] Next, an embodiment of an electromagnetic flowmeter constituted by using the flow pipe for an electromagnetic flowmeter of the present invention will be described with reference to the drawings. This electromagnetic flowmeter can be suitably utilized as a water meter. In addition, in the present invention, "orthogonal" preferably refers to the case of intersecting at an angle of 90 degrees, but also includes the case of intersecting at an angle of 80 to 100 degrees (approximately orthogonal).

[0070] Figure 3a It is a perspective view showing an example of the channel tube for an electromagnetic flowmeter of the present invention. Figure 3b It is a perspective view showing an example of an electromagnetic flowmeter constituted using the flow pipe for an electromagnetic flowmeter of the present invention. Figure 3a Among them, 101 is a flow pipe. The channel tube 101 is formed such that the tube diameter gradually decreases from both ends to the center. A penetra...

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Abstract

The invention improves the measurement accuracy of the electromagnetic flowmeter by controlling the step difference between the inner wall surface of the flow pipe and the front end surface of the electrode with high precision. In addition, the pressure resistance and durability of the electromagnetic flowmeter are improved by ensuring the liquid-tightness of the interface between the channel tube and the electrode with high precision. The flow pipe of the electromagnetic flowmeter is made of a resin material, and the flow pipe and the electrode for measuring electromotive force are integrally formed. A sealing material for sealing between the channel tube and the electrode for measuring electromotive force is arranged in the embedded part of the electrode for measuring electromotive force, so that the liquid tightness is firm.

Description

technical field [0001] The invention relates to a flow pipe for an electromagnetic flowmeter and a manufacturing method thereof. In particular, it relates to a channel tube for an electromagnetic flowmeter in which electrodes for measuring electromotive force are embedded in the channel tube and a method for manufacturing the same. This channel tube is suitable for manufacturing by insert molding. Background technique [0002] Electromagnetic flowmeters are flowmeters that measure the flow rate of conductive fluids such as water. Electromagnetic flowmeters are widely used in water meters and the like. [0003] The electromagnetic flowmeter is composed of a flow pipe, a pair of electrodes for measuring electromotive force (hereinafter, simply referred to as “electrodes”) arranged in the flow pipe, an excitation circuit, a calculation unit, and an output unit. The electromagnetic flowmeter measures the flow velocity of a conductive fluid passing through a flow pipe constitu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/58
CPCG01F1/584G01F1/588G01F15/14G01F23/242
Inventor 森北信夫西浦雅人松江朋彦神山哲弥
Owner TAKAHATA PRECISION JAPAN
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