Detection equipment of Coriolis mass flow meter

A mass flowmeter and detection device technology, which is applied to mass flow measurement devices, direct mass flowmeters, etc., can solve the problems of limited sensitivity improvement, lack of elastic support mechanism, detection tube leakage, etc., to reduce requirements and improve measurement sensitivity , The effect of production cost reduction

Inactive Publication Date: 2004-11-10
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the sensitivity of this design is improved compared with that of the original fully rigid tube, it still has shortcomings: the corrugated tube has no protective shell, so its pressure resistance is limited, and it is also vulnerable

Method used

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  • Detection equipment of Coriolis mass flow meter
  • Detection equipment of Coriolis mass flow meter
  • Detection equipment of Coriolis mass flow meter

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Now combined figure 1 , figure 2 Take a double U-tube type detection tube as an example to illustrate an embodiment of the present invention. figure 1 01 is the arc section of the rigid detection tube, 04 and 11 are the straight section of the rigid detection tube, figure 2 Middle 18 is one side of the lower U-shaped tube, and the symmetrical side of the upper U-shaped tube cannot be drawn. The rigid detection tube composed of 01, 04, 11 is connected to the process pipeline 06, 09 through the metal hose 05, 10, and the metal hose 05, 10 also becomes an effective part of the detection tube. The process pipeline is installed on the clamp base 07, 08 On the pedestal. 03 and 12 are elastic support devices designed to match the flexible deformation of hoses 05 and 10. 14 is an electromagnetic exciter that drives the detection tube to vibrate, 02 and 13 are vibration motion sensors to obtain vibration signals. figure 2 Among them, the straight pipe section 18, the metal hose...

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PUM

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Abstract

The invention is a detecting device of Coriolis mass flowmeter, belonging to flux and mass flow measuring device and used in enhancing measuring sensitivity and reducing the consistent requirement for detecting tube. There is electromagnetic excited vibrator in the middle of the detecting tube and there is vibration sensor on the symmetrical side of the detecting tube, the straight tube segment or part connected with the process pipeline of the detecting tube is composed of ripple metallic hose and there are elastic supporting devices on two symmetrical sides of the detecting tube. It enhances measuring sensitivity by a large margin, largely reduces the consistent requirement for the detecting tube, reduces fabrication difficulty and production cost, enhances repairability and reduces power consumption of system.

Description

technical field [0001] The invention belongs to a measuring device for flow and mass flow. Background technique [0002] The existing Coriolis (Coriolis) mass flowmeter has a section of single-tube or parallel double-tube detection tube. The middle part of the detection tube is equipped with an electromagnetic exciter, and the symmetrical side of the detection tube is equipped with a vibration sensor. When working, The detection tube vibrates in a certain mode. When the fluid flows through the detection tube, there will be a slight difference in the time phase of the vibration motion on both sides of the detection tube. The size of this phase time difference is proportional to the mass flow in the detection tube. The size of this time phase difference realizes the direct measurement of mass flow. The detection tube is U-shaped, Ω-shaped, straight, circular, etc. [0003] In the prior art, the detection tube is a rigid tube and the connection with the process pipeline is al...

Claims

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Application Information

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IPC IPC(8): G01F1/84
Inventor 叶林张杰
Owner HUAZHONG UNIV OF SCI & TECH
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