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3-teeth double-rotor flowmeter

A dual-rotor, flowmeter technology, applied in the direction of volume/mass flow, volume indication and recording equipment generated by mechanical effects, can solve the problems of non-continuous measurement, inaccurate measurement accuracy, and limited service life of flowmeters, and achieve good results. The effect of continuous sealing lines, high metering accuracy, and increased service life

Inactive Publication Date: 2007-09-26
SHANGHAI YINUO INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the curve formed by the two-toothed waist wheel rotor is a cycloidal tooth shape during operation, the flowmeter does not measure continuously during measurement, pulsation occurs, and the measurement accuracy is inaccurate; and its service life is limited.

Method used

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Examples

Experimental program
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Embodiment Construction

[0011] The invention is given by the following examples and accompanying drawings. See attached drawings 1-2.

[0012] A three-tooth gas double-rotor flowmeter, the rear part of the metering cavity 5 is connected with a signal-sending magnet 3, a sensor 2, and an electronic counter 1. There is a rotor in the metering cavity 5, which is characterized in that the rotor is a three-tooth helical rotor 4, and the rotor It is arc cycloid type, and the tooth shape is composed of four curves, which are composed of long cycloid, short cycloid, involute and arc line in sequence from the tooth tip. The metering chamber 5 is connected to the double rotors through the bearing 6 and the driving gear 7, and the rotors are fixedly connected to the rotor shaft; the front ends of the double rotor shafts are respectively fixedly connected to the driving gear 7, and the two driving gears mesh; the rear end of one rotor is fixedly connected to the sending magnet 3.

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Abstract

This invention relates to one three-gear gas and double rotor flow meter for natural gas and coal gas, which comprises the structure as: meter chamber is connected to transfer magnetic steel, sensor, electrical meter, wherein, meter chamber has rotors; the rotor is for three gear spiral rotor in arc swing shape; the gear is composed of four section curves from tip to long swing line, short line and opening line and arc line; meter chamber connects double rotor through bearing and drive gear; the double rotor axis front end is connected to drive gear geared with two drive gears; one rotor back end is fixed on emission magnetic steel.

Description

technical field [0001] The invention belongs to a double-rotor flowmeter instrument for flow measurement of natural gas, coal gas, etc., and particularly relates to the improvement of the structure of the gas double-rotor flowmeter. Background technique [0002] The existing volumetric gas flowmeter is a waist wheel gas flow meter, and the rotor it adopts is in the shape of a waist wheel, and this waist wheel rotor has two teeth. Because the curve formed by the two-toothed waist wheel rotor is cycloidal tooth shape during operation, the flow meter does not measure continuously when measuring, pulsation occurs, and the measurement accuracy is inaccurate; and its service life is limited. Contents of the invention [0003] In order to overcome the disadvantages of the waist wheel gas flowmeter structure, the present invention provides a gas double-rotor flowmeter composed of three-tooth helical rotors, which improves the measurement accuracy and service life. [0004] A thre...

Claims

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Application Information

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IPC IPC(8): G01F1/05G01F15/06
Inventor 郭井和郭芳
Owner SHANGHAI YINUO INSTR
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