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Volumetric gas-liquid two-phase flow meter and measuring method thereof

A volumetric and flowmeter technology, which is applied in volumetric measuring instruments/methods, liquid/fluid solid measurement, volume measurement, etc., can solve the problem of high imaging processing cost, differential pressure flowmeter, inability to detect gas-liquid two-phase mixed fluid flow, etc. problems, to achieve the effect of reducing equipment volume and cost, light weight, safe and reliable structure

Pending Publication Date: 2021-08-17
李吉庆
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a volumetric gas-liquid two-phase flowmeter and its measurement method, which overcomes the deficiencies of the prior art above, and can effectively solve the problem of separating and measuring gas and liquid in existing gas-liquid two-phase flowmeters. The cost of imaging processing by ray and other methods is high and the problem that the differential pressure flowmeter cannot detect the flow of gas-liquid two-phase mixed fluid

Method used

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  • Volumetric gas-liquid two-phase flow meter and measuring method thereof

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Effect test

Embodiment 1

[0027] Embodiment one, as attached figure 1 As shown, the volumetric gas-liquid two-phase flowmeter includes a first volumetric flowmeter 2, a second volumetric flowmeter 5, a first pressure transmitter 1, a second pressure transmitter 4 and a differential pressure tube 3, The first positive displacement flowmeter 2, the differential pressure pipe 3 and the second positive displacement flowmeter 5 are fixed together in sequence, the first pressure transmitter 1 is installed on the left end of the first positive displacement flowmeter 2, and the second positive displacement flowmeter A second pressure transmitter 4 is installed at the left end of the gauge 5 .

[0028] During use, positive displacement flowmeters do not need to have long straight pipe sections before and after to form a stable flow velocity distribution in the pipe. There is no requirement for the velocity distribution in the pipe, which brings great convenience to on-site installation, and the measurement res...

Embodiment 2

[0036] Embodiment two, according to the attached figure 1 Shown, a kind of measuring method using above-mentioned volumetric gas-liquid two-phase flowmeter comprises the following steps:

[0037] In the first step, the first pressure transmitter 1 measures the pressure P of the gas flowing through the metering pipeline for a period of metering time 1 ;

[0038] In the second step, the first positive displacement flowmeter 2 measures the volume C of the gas-liquid two-phase mixed fluid flowing through the metering pipeline for a period of metering time 1 ;

[0039] In the third step, the second pressure transmitter 4 measures the pressure P of the gas flowing through the differential pressure tube within a certain period of time in the measured metering pipeline. 2 ;

[0040] In the fourth step, the second positive displacement flowmeter 5 measures the volume C of the gas-liquid two-phase mixed fluid flowing through the differential pressure tube within a certain period of ...

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Abstract

The invention relates to the technical field of gas-liquid metering, in particular to a volumetric gas-liquid two-phase flow meter which comprises a first volumetric flow meter, a second volumetric flow meter, a first pressure transmitter, a second pressure transmitter and a differential pressure tube. The volumetric gas-liquid two-phase flow meter is reasonable and compact in structure and convenient to use, in the using process, the volumetric flow meters are used for measuring, and the result is more accurate. The pressure transmitter is wide in detected medium, can detect oil, water and the like, and has certain anti-corrosion capability; the accuracy and the stability are high; a corresponding pressure difference is formed at the front end and the rear end of the differential pressure pipe under the action of other methods such as reducing, finally, the volume occupied by liquid is obtained through calculation, the volume of gas and the volume of the liquid are measured, gas-liquid two-phase mixed fluid does not need to be separated in the metering process, the equipment size and cost are greatly reduced, and continuous metering can be carried out, and the structure sealed with the outside is safer and more reliable, and the flow meter has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

Description

technical field [0001] The invention relates to the technical field of gas-liquid measurement, and relates to a volumetric gas-liquid two-phase flowmeter and a measuring method thereof. Background technique [0002] At present, most gas-liquid two-phase flowmeters use the method of gravity sedimentation to separate and measure gas and liquid, which is often referred to as the GLCC measurement method. This separation and measurement method often requires a larger container for separation. There is also imaging processing through ray and other methods, and then calculating the gas-liquid ratio through graphics processing functions, which is costly; and the existing differential pressure flowmeter cannot detect the flow rate of gas-liquid mixture. Contents of the invention [0003] The present invention provides a volumetric gas-liquid two-phase flowmeter and its measurement method, which overcomes the deficiencies of the prior art above, and can effectively solve the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F11/00G01F22/02
CPCG01F11/00G01F22/02
Inventor 李吉庆陈思琪
Owner 李吉庆
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