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Online accurate measuring device and online accurate measuring method for fluid flow

A technology for precise measurement and fluid flow, which is applied in the direction of detecting fluid flow by measuring pressure difference, volume/mass flow generated by mechanical effects, etc., to achieve the effect of short straight pipe section, not easy to freeze blockage and dry ice, and low manufacturing cost

Inactive Publication Date: 2015-12-23
陈惺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects existing in the prior art, to provide a safe and accurate on-line precise measurement technology of fluid flow, especially an online flow measurement device and method suitable for phase changes in oil field carbon dioxide flooding conditions, to solve the problem of Fluid metering problems of pulsating flow and multiphase state change, widening the effective turndown ratio; an online accurate measurement device and method for fluid flow that is also applicable to other medium flows

Method used

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  • Online accurate measuring device and online accurate measuring method for fluid flow
  • Online accurate measuring device and online accurate measuring method for fluid flow

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Effect test

Embodiment 1

[0021] An online accurate fluid flow measurement device of the present invention is composed of a left flange 1, a right flange 2, a measuring tube 3, a multifunctional board 4 and a temperature sensor 5. The left flange 1 and the right flange The measuring tube 3 is connected with each other through the measuring tube 3. The multifunctional plate 4 is fixed in the front part of the measuring tube 3, and the V-shaped cone assembly 6 is arranged at the rear part. The outside of the measuring tube 3 is connected with two pressure pipes 7, two The end of the pressure pipe 7 is connected to the coplanar three-valve group 8. The coplanar three-valve group 8 is provided with a multi-parameter transmitter 9 which is connected to the temperature sensor 5 in the measuring pipe 3. The temperature sensor 5 is placed in a protective tube 15, one end of the protective tube 15 is placed in the measuring tube 3, and a sewage pipe 11 is provided on the outside of the front of the measuring tube...

Embodiment 2

[0023] An online accurate fluid flow measurement device of the present invention is composed of a left flange 1, a right flange 2, a measuring tube 3, a multifunctional board 4 and a temperature sensor 5. The left flange 1 and the right flange The measuring tube 3 is connected with each other through the measuring tube 3. The multifunctional plate 4 is fixed in the front part of the measuring tube 3, and the V-shaped cone assembly 6 is arranged at the rear part. The outside of the measuring tube 3 is connected with two pressure pipes 7, two The end of the pressure pipe 7 is connected to the coplanar three-valve group 8. The coplanar three-valve group 8 is provided with a multi-parameter transmitter 9 which is connected to the temperature sensor 5 in the measuring pipe 3. A sewage pipe 11 is provided on the outside of the front of the measuring tube 3. The multifunctional plate 4 is composed of a central circular hole 13 and a plurality of circular arc through holes 14 stacked i...

Embodiment 3

[0025] An online accurate fluid flow measurement device of the present invention is composed of a left flange 1, a right flange 2, a measuring tube 3, a multifunctional board 4 and a temperature sensor 5. The left flange 1 and the right flange The measuring tube 3 is connected with each other through the measuring tube 3. The multifunctional plate 4 is fixed in the front part of the measuring tube 3, and the V-shaped cone assembly 6 is arranged at the rear part. The outside of the measuring tube 3 is connected with two pressure pipes 7, two The end of the pressure pipe 7 is connected to the coplanar three-valve group 8. The coplanar three-valve group 8 is provided with a multi-parameter transmitter 9 which is connected to the temperature sensor 5 in the measuring pipe 3. A sewage pipe 11 is provided on the outside of the front of the measuring tube 3. Two pressure pipes 7 are drawn vertically from the upper part of the measuring pipe 3; the V-shaped cone assembly 6 in the measu...

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Abstract

The invention provides an online accurate measuring device and an online accurate measuring method for fluid flow, which relate to fluid flow measuring technology. The online accurate measuring device is composed of a left flange, a right flange, a measuring pipe, a multifunctional board, and a temperature detecting and signal transmitting device. The left flange is fixedly communicated with the right flange through the measuring pipe. The multifunctional board is fixed at the front part in the measuring pipe, and a V-shaped cone assembly is arranged at the back part in the measuring pipe. The outside of the measuring pipe is communicated with two pressure guiding pipes. The ends of the two pressure guiding pipes are communicated with a coplanar three-valve set. The coplanar three-valve set is provided with a multi-parameter transmitter. The multi-parameter transmitter is connected with the temperature detecting and signal transmitting device in the measuring pipe through line connection. The online accurate measuring device for the fluid flow has advantages of simple structure, stable signal, small pressure loss, small length of required straight pipe segment, etc. The online accurate measuring device and the online accurate measuring method belong to the field of a differential pressure type flowmeter. The online accurate measuring device has inherent characteristics of all differential pressure type flowmeters. The flow of the measured medium is in proportion to the square root of the differential pressure. The online accurate measuring device and the online accurate measuring method realize safe and accurate online measurement for the fluid flow.

Description

Technical field [0001] The invention relates to fluid flow measurement technology, in particular to an online accurate measurement device and method for fluid flow. Background technique [0002] Oilfield carbon dioxide flooding flow measurement instruments mostly use differential pressure flowmeters, and V-cone flowmeters are preferred. This flowmeter is only suitable for single-phase and narrow-range fluid measurement. When the phase of the medium in the pipeline changes, it cannot Accurate measurement. The oil field carbon dioxide flooding flow is just the supercritical flow medium with pulsating flow and variable phase state. The V-cone flowmeter has the advantages of stable signal, low pressure loss and short straight pipe section required for installation. It belongs to the category of differential pressure flowmeters and has all the inherent characteristics of differential pressure flowmeters: namely, the measured medium flow rate and differential pressure value. The squa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/36
Inventor 吴春荣陈惺夏磊陈福才
Owner 陈惺
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