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Two-phase fluid grid and capacitor chromatography imaging method

A capacitance tomography, mesh technology, applied in material capacitance, measurement of electrical variables, measurement of resistance/reactance/impedance, etc., can solve problems such as inability to realize real-time imaging of two-phase fluids

Inactive Publication Date: 2006-11-01
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Different from other patents, in this patent, the flow direction of the resin material is parallel to the grid plane instead of perpendicular. Obviously, this device cannot realize real-time imaging of two-phase fluid

Method used

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  • Two-phase fluid grid and capacitor chromatography imaging method
  • Two-phase fluid grid and capacitor chromatography imaging method
  • Two-phase fluid grid and capacitor chromatography imaging method

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Embodiment Construction

[0037] figure 1 It is an intervening network capacitance tomography imaging system prepared according to the method of the present invention, which is composed of three parts: an intervening capacitance sensor, a data acquisition system and an imaging computer. Interventional capacitive sensor layouts such as figure 2 As shown, the insulated wire layer 1 and the wire layer 2 are arranged in the capacitive sensor, and the distance between the two layers is very close and parallel to each other. The insulated wire 1 or wire 2 of each layer is also parallel to each other and vertically fixed to the rotatable sensor housing. 4, the rotating mechanism is connected with the pipeline seal. Here each insulated wire 1 is used as the generating pole of the capacitance in the capacitive sensor, and the corresponding wire 2 directly behind them is the wire used to measure the corresponding capacitance, such as image 3 shown. The insulated wire 1 is coated with a thin insulating layer...

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Abstract

A twine capacity chromatographic imaging method of two-phase fluid includes using metal core in insulation line as one electrode of said capacity and forming another electrode of it by conductive phase in two-phase fluid and contact surface of twine, using insulation layer at surface layer as insulator between electrodes and confirming its capacity value, using motor to drive transducer in insertion twine capacity type to carry out high speed scan on two-phase fluid in pipeline to obtain projection information of two-phase fluid at various directions on cross section of pipeline for having real time flowing image of said fluid.

Description

[0001] This application is a divisional application of the patent application No. 200410026282.9, entitled "Two-phase fluid mesh capacitance tomography method", the original filing date is June 29, 2004, and the invention name is "Two-phase fluid mesh capacitance layer Analytical imaging method". technical field [0002] The invention relates to two-phase fluid tomography, in particular to a method for two-phase fluid mesh capacitance tomography. Background technique [0003] Two-phase flow phenomena widely exist in petroleum, chemical, energy and power engineering fields, but the mechanism and numerical simulation calculations related to two-phase flow are still very rough and cannot meet the needs of modern engineering development. The main reason is the lack of effective two-phase flow detection means, especially the multi-dimensional dynamic measurement means in the process of two-phase flow. In multiphase flow parameter...

Claims

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Application Information

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IPC IPC(8): G01N27/22G01R27/26
Inventor 张修刚王栋林宗虎
Owner XI AN JIAOTONG UNIV
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