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Pointer and rotor flowmeter

A rotameter and pointer technology, which is applied to the volume/mass flow generated by mechanical effects, and through the detection of dynamic effects of fluid flow, etc., can solve the problems of the frequency and amplitude of pointer swings, and achieve improved reading accuracy and pointer Indicates a steady, amplitude-reducing effect

Inactive Publication Date: 2017-06-09
CHANGZHOU CHENTONG TELECOMM EQUIP FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in many cases, the frequency and amplitude of the pointer swing are too high to be fundamentally avoided and reduced.

Method used

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  • Pointer and rotor flowmeter

Examples

Experimental program
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Effect test

Embodiment Construction

[0007] The present invention includes a tapered tube that gradually expands from bottom to top, a rotor that is placed in the tapered tube and can move freely up and down along the center line of the tube, and a pointer assembly 7 consisting of a pointer, a pointer pressing piece, a pointer seat, and a counterweight 1 , the damping device 6 is installed under the dial of the pointer and is integrated with the dial. The damping device includes a frame composed of two metal plates 4 and a connecting piece 5 and a magnetic steel 2 sucked inside the two metal plates. Two pieces There are gaps 3 between the magnetic steels inside the metal plates to form a closed magnetic field, the counterweight 1 in the pointer assembly can swing freely in this gap, and the number of magnetic steels on each metal plate can be arranged side by side according to needs. The range of the dial is 100-300, and the pointer assembly is made of iron alloy material.

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Abstract

The invention discloses a pointer rotameter, which comprises a tapered tube gradually enlarged from bottom to top, a rotor and a pointer assembly which are placed in the tapered tube and can move freely up and down along the center line of the tube, and a damping device. The damping device is installed under the dial of the pointer and is integrated with the dial. The damping device includes a frame composed of two metal plates and connectors, and a magnetic steel that is attracted to the inside of the two metal plates. There is a gap between the magnetic steels , forming a closed magnetic field, and the counterweight in the pointer assembly can swing freely in this gap. The structure of the invention is reasonable, which can improve the use effect of the flowmeter, greatly reduce the frequency and amplitude of the pointer swing, make the pointer indication stable, and the scale Value reading becomes easy and reading accuracy improves.

Description

technical field [0001] The invention relates to a device for estimating the flow rate by measuring the upper and lower positions of a flow blocking component arranged in the direct current pipeline, in particular to a pointer rotor flowmeter. Background technique [0002] The rotameter consists of two parts, one is a tapered tube that gradually expands from bottom to top; the other is a rotor that is placed in the tapered tube and can move freely up and down along the center line of the tube. When the rotameter measures the flow of the fluid, the measured fluid flows in from the lower end of the tapered tube, and the flow of the fluid impacts the rotor and generates a force on it (the magnitude of this force varies with the flow rate); when the flow rate is large enough , the resulting force lifts the rotor up and lifts it up. At the same time, the measured fluid flows through the annular section between the rotor and the tapered tube wall, and flows out from the upper end....

Claims

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Application Information

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IPC IPC(8): G01F1/24
CPCG01F1/24
Inventor 徐天宇
Owner CHANGZHOU CHENTONG TELECOMM EQUIP FACTORY
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