Differential pressure flowmeter

A differential pressure flowmeter and fluid technology, which is applied in the direction of detecting fluid flow by measuring pressure difference, volume/mass flow generated by mechanical effects, etc., can solve the problem of complex structure of differential pressure flowmeter, difficult processing and installation of throttling elements, The flowmeter is easy to corrode and other problems, so as to achieve the effect of simple structure, low cost and easy processing and molding

Active Publication Date: 2015-03-25
LIHE TECH (HUNAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a differential pressure flowmeter to solve the problem that the existing differential pressure flowmeter has a complex structure, the measured pressure difference changes little, the sensitivity is not high enough, the throttling element is not easy to process and install, and the flowmeter is easy. corrosion problem

Method used

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Examples

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Embodiment 1

[0040] Such as figure 2 and image 3 As shown, a differential pressure flowmeter provided in this embodiment includes a measuring tube 10, a throttling element 20 arranged in the measuring tube 10, and a front and rear isolation arrangement on the throttling element 20, and a sticker passing through the measuring tube 10. The first pressure collection pipe and the second pressure collection pipe on the side pipe wall, the first pressure collection pipe is specifically the high pressure pipe 40 , and the second pressure collection pipe is specifically the low pressure pipe 30 . Such as image 3 In this embodiment, the throttling element 20 is an incomplete cylinder cut parallel to the axis at 3 / 4D by a cylinder equal to the inner diameter of the measuring tube 10, and the throttling element 20 is attached to the inner wall of the measuring tube. meet face. However, the throttling element in the form of an incomplete cylinder is not limited to cutting at 3 / 4D of the cylinder...

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Abstract

The invention relates to a differential pressure flowmeter which comprises a measuring pipe, a column-shaped throttling element, a first pressure collecting pipe and a second pressure collecting pipe, wherein the column-shaped throttling element is arranged in the measuring pipe and is provided with a fit face with the inner wall of the measuring pipe, the first pressure collecting pipe and the second pressure collecting pipe are separated in a front-rear mode and collect pressure in a measuring pipe cavity, and meanwhile the first pressure collecting pipe and the second pressure collecting pipe vertically penetrate through the pipe wall on one side of the measuring pipe and stretch out of the measuring pipe wall. The differential pressure flowmeter is simple in structure, and pressure is collected conveniently, and the flowmeter is high in sensitivity and measuring accuracy, easy to machine, convenient to install and low in cost; furthermore, the differential pressure flowmeter is made of materials resistant to high temperature, high pressure and corrosion and wide in application range.

Description

technical field [0001] The invention relates to the technical field of flow measurement, in particular to a differential pressure flowmeter. Background technique [0002] At present, flow measurement technology plays an indispensable role in industrial production, energy measurement, environmental protection and other fields, and is closely related to national economy and scientific research. Flowmeters include differential pressure flowmeters, rotameters, etc. Among them, the differential pressure flowmeter is an instrument that measures the flow rate according to the differential pressure generated by the flow detection part installed in the pipeline at different points, the known fluid conditions and the geometric dimensions of the detection part and the pipeline. [0003] The invention patent with the patent announcement number CN103424149A discloses an olive-shaped differential pressure flowmeter, such as figure 1 As shown, it includes a measuring tube 1, an olive-sha...

Claims

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Application Information

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IPC IPC(8): G01F1/36
Inventor 刘海东彭冉刘德华
Owner LIHE TECH (HUNAN) CO LTD
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