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Method and device for measuring atmospheric gas-liquid two-phase flow

A technology of gas-liquid two-phase flow and measurement circuit, which is applied in the direction of measuring devices and instruments, and can solve problems such as difficulty and detection complexity

Inactive Publication Date: 2017-10-24
成都金景盛风科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with single-phase flow, due to the mass transfer and even chemical reactions between the phases at the phase interface, the two-phase flow is randomly variable in time and space, so that the flow such as the content of each phase, flow velocity, flow rate and overall velocity, flow rate, etc. The detection of parameters is more complex and difficult

Method used

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  • Method and device for measuring atmospheric gas-liquid two-phase flow
  • Method and device for measuring atmospheric gas-liquid two-phase flow
  • Method and device for measuring atmospheric gas-liquid two-phase flow

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Embodiment Construction

[0014] A specific embodiment is used to further illustrate the structure and principle of the method and device for measuring atmospheric gas-liquid two-phase flow using cavitation flow proposed by the present invention. The technical solution is a device realized by utilizing the principle and structure proposed by the invention. The structural schematic diagram of specific embodiment is as figure 2 shown. The cavitation flowmeter includes a flow pipe (8) with a connecting front flange (7) and a connecting rear flange (9), which can be connected between the pipes to be measured. There is a cavity (2) on the bottom edge of the flow pipe (8), the opening length L is 50 mm, and the section shape along the depth direction (perpendicular to the incoming flow) is rectangular, so it has a sharp front (3) and rear Along (5), the bottom is equipped with a pressure sensor (12), which is connected to the measurement circuit (13). Along the flow direction (1), upstream of the cavity ...

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Abstract

The invention discloses a method and device for measuring atmospheric gas-liquid two-phase flow. The method and device can identify the content, velocity and flow rate of each phase of the atmospheric gas-liquid two-phase flow, as well as the overall average velocity and flow rate. It is a flowmeter made of the principle of self-sustained oscillation when fluid flows through the cavity on the wall of the flowmeter pipe.

Description

technical field [0001] The invention relates to the field of two-phase flow measurement, in particular to a method and device for measuring atmospheric gas-liquid two-phase flow by using cavitation flow. The device can identify the content of each phase of the gas-liquid two-phase flow, as well as the overall average velocity, flow. Background technique [0002] There are two-phase flow phenomena widely in engineering, among which gas-liquid two-phase flow is the most common. For example, convection in oil pipelines, around turbine rotors, and in atmospheric clouds are all gas-liquid two-phase flows. It is of great significance for related research, design and production to measure the flow parameters of two-phase flow and understand its characteristics and changing rules. Compared with single-phase flow, due to the mass transfer and even chemical reactions between the phases at the phase interface, the two-phase flow is randomly variable in time and space, so that the flo...

Claims

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Application Information

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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 路明
Owner 成都金景盛风科技有限公司
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