Combined rectification system of ultrasonic flowmeter

A technology of rectification system and flowmeter, which is applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, measuring device, etc. It can solve the problems of flow field distribution distortion and measurement error, and achieve long service life, convenient construction, and expansion The effect of application range

Pending Publication Date: 2019-06-04
TIANJIN SINO GERMAN VOCATIONAL TECHNICAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Regarding flow field distribution distortion, the main reason is that flow field changes or eddy currents and other lateral flows are caused by flow control valves, elbows, bypasses, and dislocations at pipe flange connections in the pipeline, resulting in measurement errors

Method used

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  • Combined rectification system of ultrasonic flowmeter
  • Combined rectification system of ultrasonic flowmeter
  • Combined rectification system of ultrasonic flowmeter

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Embodiment

[0032] (1) The fan-type blade turbulence generator 1 of the combined rectification system of the present invention is designed as 8 pieces, and the torsional inclination of each fan blade is 30 degrees. The middle fixed axis of the generator is a hollow cylinder with an inner diameter of 3 mm and a wall thickness of 1 mm. , the axial length of the generator is 3 cm, and there is a 3 cm long buffer straight pipe section 2 between the turbulent flow generator 1 and the perforated plate 3 .

[0033] (2) if figure 1 As shown, the perforated plate 3 of the combined rectification system of the present invention is made by punching a corrosion-resistant metal plate, with an outer diameter of 100 mm, consisting of one rectification hole with an inner diameter of 22 mm, eight rectification holes with an inner diameter of 14 mm, and 24 rectification holes with an inner diameter of 8 mm. Each rectifying hole is circular and has an axial length of 3 cm.

[0034] (3) The combined rectific...

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PUM

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Abstract

Three kinds of thermotechnical amounts of a flow, a temperature and pressure are taken as detection parameters, and accuracy of measurement plays an important role in modern industrial production automation. The flowmeter is used as a settlement tool of flow measurement and is widely used in chemical smelting, oil and gas transportation, farmland irrigation, commercial trade settlement of a civilwater meter, a gas meter and the like, industrial production and other fields. With the changes of an our country energy structure, a proportion of natural gas in energy consumption is increasing, andsettlement demands of natural gas transportation and usage drive rapid development of a gas ultrasonic flowmeter. In order to improve the dose accuracy of the gas ultrasonic flowmeter, a combined rectification system of the ultrasonic flowmeter is designed, which realizes the accurate measurement of the ultrasonic flowmeter under a chaotic condition of a gas flow field and enlarges an applicationrange of the ultrasonic flowmeter.

Description

technical field [0001] The invention relates to the technical field of flow field optimization, in particular to a combined rectification system of an ultrasonic flowmeter, which is suitable for flow field rectification of a gas ultrasonic flowmeter and is beneficial to improving the measurement accuracy of the ultrasonic flowmeter. Background technique [0002] The characteristics of the ultrasonic flowmeter make it have certain requirements for the field application conditions in use, otherwise it will affect the measurement accuracy, which is especially important for the design, installation and use of the ultrasonic flowmeter. Factors that affect the accuracy of gas ultrasonic flowmeters include: selection of pipe section flow velocity based on flow state, geometric dimension error of measurement stub, measurement error of sound time, temperature / pressure measurement error, measurement error caused by pipe roughness change, signal attenuation or affected Mistriggering er...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66G01F15/10
Inventor 韩思奇檀盼龙邵欣朱少锋
Owner TIANJIN SINO GERMAN VOCATIONAL TECHNICAL COLLEGE
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