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Steady-state circulation body for vortex shedding flowmeter

A vortex flowmeter, steady-state technology, applied in the direction of volume/mass flow generated by detecting the dynamic effect and mechanical effect of fluid flow, can solve the problems of large overall structure size, unstable measurement and observation, etc., to achieve Achieve measurement stability, eliminate upper and lower stratification, and achieve the effect of stability and detection

Active Publication Date: 2012-10-03
石家庄奥森自动化仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a steady flow body for a vortex flowmeter, so as to solve the problems of the existing vortex flowmeters, such as unstable measurement and observation and large overall structure size.

Method used

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  • Steady-state circulation body for vortex shedding flowmeter
  • Steady-state circulation body for vortex shedding flowmeter
  • Steady-state circulation body for vortex shedding flowmeter

Examples

Experimental program
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Embodiment Construction

[0018] exist figure 1 In the flow body shown, the main body 1 is a flat cuboid structure made of stainless steel, that is, the top surface and the bottom surface of the main body 1 are parallel to each other, and the two sides are parallel to each other, and the front and rear surfaces are arc-shaped convex surfaces. The outer convex surface is an upright arc-shaped surface with a central angle of 40-60°, and the tangent angle between the chord and the arc between the side surface of the body 1 and the outer convex surface is greater than 130°.

[0019] Of course, the main body 1 can also be a rectangular parallelepiped structure made of steel, with three groups of opposite faces corresponding to parallel ones and vertically intersecting its faces.

[0020] Only on the above-mentioned body 1 with a square structure, it is suitable to open a flow channel with a square or rectangular hole with the largest flow area, and ensure that the overall structure size and span of the body...

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Abstract

The invention relates to a steady-state circulation body for a vortex shedding flowmeter, which structurally comprises a body, wherein a flow channel for the measured liquid to pass and two probe mounting holes which are communicated with the flow channel are arranged on the body, a vortex generating body is arranged in the flow channel, the body is a square body with paralleled top and bottom surfaces and paralleled side surfaces, and the flow channel is a square hole which penetrates through the body from the front and the back surfaces. The steady-state circulation body for the vortex shedding flowmeter overcomes the technical defects of unsteady observation and metering and slightly bigger integral structural size of the existing vortex shedding flowmeter, the size of a breaking-in pipeline can be correspondingly reduced during the installation process, the turbulent flow and the disturbance of the measured liquid can be reduced when the measured liquid passes through the flow channel of the circulation body, so the flow stablization effect is realized, and the stabilization of the vortex and the detection is realized.

Description

technical field [0001] The invention relates to a component of a vortex flowmeter, in particular to a steady flow body for a vortex flowmeter. Background technique [0002] The plug-in vortex flowmeter uses the principle of "Karman vortex street" to measure the fluid velocity at the center of the pipeline by detecting the vortex generated by the fluid medium cut off by the upstream surface of the vortex generator in the pipeline under test, and then calculate An inductive flow metering device for pipeline fluid flow. Its structure includes several parts such as meter head, ultrasonic testing system, plug-in rod, sealing connection assembly and flow body; among them, the flow body is the part inserted into the measured pipeline through the external ball valve on the tested pipeline for flow rate detection. [0003] The existing flow body consists of a conical body made of double-layer cone sockets. A cylindrical flow channel and two upper and lower positions opposite to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/32
Inventor 曹世红王英妹杜亚普许爱霞郑金钊
Owner 石家庄奥森自动化仪表有限公司
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