Flow measurement device and method of gas-liquid multi-phase flow

A flow measurement device and multiphase flow technology, applied in the field of measuring gas-liquid multiphase flow flow, gas-liquid multiphase flow flow measurement device, achieves the effects of low manufacturing cost, high measurement accuracy and simple structure

Inactive Publication Date: 2010-03-17
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the deficiency that the combined wet steam flow measurement device in the prior art cannot measure the flow of wet steam with heterogeneous distribution, the pres

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  • Flow measurement device and method of gas-liquid multi-phase flow
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Embodiment Construction

[0025] With reference to the accompanying drawings, the flow measuring device of the gas-liquid multiphase flow of the present invention measures the wet steam two-phase flow flow in the pipeline, and adopts a stainless steel straight-through pipe 1 with an inner diameter of 90 mm and an outer diameter of 100 mm, A homogeneous rectifier 2, and a flow meter sensor 3. B homogeneous rectifier 7, B flow meter sensor 5, connecting flange 6 as a measuring device, and a digital display meter 4 with a built-in gas-liquid multiphase flow flow processing program. Among them, A homogeneous rectifier 2, A flowmeter sensor 3, B homogeneous rectifier 7, and B flowmeter sensor 5 are sequentially installed in the straight-through pipe 1, and the stainless steel connecting flanges 6 at both ends of the straight-through pipe 1 are connected to the test In the pipeline of gas-liquid multiphase flow; the digital display meter 4 is fixed outside the straight-through pipe 1, and is respectively conn...

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Abstract

The invention discloses a flow measurement device of gas-liquid multiphase flow, used for measuring the flow of wet steam in heterogeneous distribution. The flow measurement device is characterized inthat a homogeneous rectifier A, a flow meter sensor A, a homogeneous rectifier B and a flow meter sensor B are arranged in a straight-way pipe sequentially, and a numeral display meter in which a flow processing program of the gas-liquid multiphase flow is arranged is fixed outside the straight-way pipe. The invention also discloses a method for measuring the flow of wet steam in heterogeneous distribution by the flow measurement device of gas-liquid multiphase flow, and the method comprises the following steps: acquiring flow characteristic signals of the A flow meter sensor and the B flow meter sensor; and simultaneously working out the flow of the wet steam in heterogeneous distribution by mass conservation equation of the A flow meter sensor and the B flow meter sensor. The inventionnot only can measure the flow quality of gas-liquid multiphase flow but also has the advantages of high measurement accuracy, good stability and reliability, simple structure and low manufacturing cost.

Description

technical field [0001] The invention relates to a flow measuring device, in particular to a gas-liquid multiphase flow measuring device. It also relates to a method for measuring the flow rate of gas-liquid multiphase flow by using the flow measuring device. Background technique [0002] Gas-liquid multiphase flow is a fluid with gas-liquid two-phase or more than two-phase gas-liquid. In the process industry, the transportation of gas-liquid multiphase flow is often involved, for example, wet steam transmission in industry, oil separation, oil and gas transportation, etc. In order to monitor and operate the production process involving gas-liquid multiphase flow, it is necessary to measure and meter the flow of gas-liquid multiphase flow. Since common flowmeters can only measure the flow rate of single-phase flow, while gas-liquid multiphase flow is non-single-phase flow, in the pipeline flow, its flow state often appears bubble flow, air mass flow, stratified flow, wavy f...

Claims

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Application Information

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IPC IPC(8): G01F7/00G01F1/86
Inventor 李世武
Owner NORTHWESTERN POLYTECHNICAL UNIV
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