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System and method for detecting leaks in an electromagnetic flowmeter

An electromagnetic flowmeter and detector technology, applied in the field of leaking systems, can solve the problems of weakening the pressure sealing ability of the flow pipe, hazards and the like

Active Publication Date: 2020-08-07
SCHNEIDER ELECTRIC SYST USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can pose a rather serious hazard since damage to the flow tube wall 5 would impair the pressure tightness of the flow tube

Method used

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  • System and method for detecting leaks in an electromagnetic flowmeter
  • System and method for detecting leaks in an electromagnetic flowmeter
  • System and method for detecting leaks in an electromagnetic flowmeter

Examples

Experimental program
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Embodiment Construction

[0022] Referring now to the attached drawings, first of all figure 2 , an embodiment of an electromagnetic flowmeter is generally designated 101 . The flow meter 101 includes a flow tube 103 configured to carry a conductive fluid flowing through the flow meter 101 . For example, the flow tube 103 is adapted to include a generally cylindrical or cylindrical wall 105 including an inner surface surrounding a flow path 107 extending between opposite ends of the flow tube for fluid flow therethrough. Flow meter 101. The flow tube 103 is suitably supported by a conductive material such as stainless steel or other suitable metal. A non-conductive gasket 111 pads the inner surface of the flow tube wall 105 to electrically insulate the flow tube wall from the conductive fluid. The non-conductive liner 111 may have any of several suitable configurations, such as a coating, a coating, an Separate liner.

[0023] Flow tube 101 has electrodes 115 extending through process penetration ...

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Abstract

An electromagnetic flowmeter has a flowtube configured to carry a conductive fluid. The flowtube has wall made of a conductive material. The wall has an inner surface surrounding a fluid flow path for the fluid. A non-conductive liner is positioned to electrically insulate the flowtube wall from the fluid. The flowtube and non-conductive liner define an electrode mounting hole. An electrode extends through the electrode mounting hole. The electrode and the non-conductive liner form a fluidic seal between the electrode mounting hole and the fluid flow path. At least a portion of the electrode is arranged in fluid communication with the flowtube within the electrode mounting hole. A short circuit detector can detect failure of the seal when conductive fluid that has leaked past the seal creates a short circuit as a result of the fluid communication between the flowtube and the electrode mounting hole.

Description

technical field [0001] The present invention relates generally to electromagnetic flow meters, and more particularly to systems and methods for detecting leakage of fluid from a flow tube of an electromagnetic flow meter. Background technique [0002] Magnetic flow meters (sometimes called "magnetic flow meters" or "magnetometers") measure the flow rate of an electrically conductive fluid through a flow tube. In a conventional electromagnetic flowmeter, electrical coils are mounted on two opposite sides of the conduit and energized to generate an electromagnetic field perpendicular to the direction of fluid flow in the conduit. When a conductive fluid flows through an electromagnetic field, an electric field is generated in the fluid that can be measured to determine the flow rate. In a typical setup, a pair of electrodes extend through the wall of the flow tube and into the fluid for measuring the strength of the electric field to determine the flow rate. Sometimes additi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/58G01F15/00G01R27/02G01R31/52
CPCG01F1/58G01F15/00G01R27/02G01R31/50G01F1/584G01F1/60
Inventor D·G·陶尔三世J·Y·谢J·L·匹祖提A·德普鲁斯特
Owner SCHNEIDER ELECTRIC SYST USA INC