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Vencore flowmeter

A flowmeter and cone-shaped technology, which is applied in the field of flowmeters with high measurement accuracy, can solve the problems of unstable outflow coefficient, low repeatability, and small range, and achieve small permanent pressure loss, high measurement accuracy, and flow measurement wide range of effects

Inactive Publication Date: 2007-08-15
DALIAN HENRY MEASUREMENT & CONTROL INSTR ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the disadvantages of differential pressure flowmeters represented by orifice plates, nozzles and Venturi tubes are: unstable outflow coefficient, poor linearity, low repeatability, small range, and on-site installation conditions Harsh, large pressure loss, measurement accuracy needs to be improved and improved

Method used

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  • Vencore flowmeter

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing 1, the specific embodiment of the present invention will be further described. This embodiment is a Venké cone flowmeter that can simultaneously detect the pressure and temperature of a fluid medium. The inlet and outlet ends of the Venturi tube are provided with flanges (1) connecting the pipeline. The inlet of the Venturi tube is a Venturi nozzle (2), followed by a straight throat section (5), followed by a 15-degree Taper-shaped diffuser pipe section (7), two holes are opened on the throat pipe section of the Venturi tube, which are respectively sealed and connected with the high-pressure pressure pipe (3) and the low-pressure pressure pipe (4) of the flow parameter conversion device, wherein , the low-pressure pressure-taking pipe extends into the diversion cone (6), the diversion cone is fixedly connected to the low-pressure pressure-taking pipe, and the position of the diversion cone is placed between the throat strai...

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Abstract

This invention discloses one Ventura tube and flow guide tamper combination flow measurement device, which comprises flow save device and difference voltage conversion and display device, wherein, the flow save device is composed of guide flow tamper between throat direct section and tamper diffusion section; the venture tube guide tamper section is set with high voltage taker tube and low one.

Description

technical field [0001] The invention relates to the technical field of differential pressure flowmeters, and relates to a flowmeter with high measurement accuracy for measuring the flows of various liquids and gases. Background technique [0002] In the prior art, the disadvantages of differential pressure flowmeters represented by orifice plates, nozzles and Venturi tubes are: unstable outflow coefficient, poor linearity, low repeatability, small range, and on-site installation conditions It is harsh, the pressure loss is large, and the measurement accuracy needs to be improved and improved. Contents of the invention [0003] The purpose of the present invention is to design a differential pressure flowmeter with stable flow signal under low noise background, so as to improve the measurement range and precision. [0004] The technical solution of the present invention is: a Venturi cone flowmeter, which is composed of a throttling device and a differential pressure conve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/34G01F1/36G01F15/10G01F15/12
Inventor 张志陈雅芬
Owner DALIAN HENRY MEASUREMENT & CONTROL INSTR ENG CO LTD
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