Rolling ball type flowmeter

Abstract

The invention discloses a rolling ball type flowmeter. The rolling ball type flowmeter comprises an input pipeline, an annular to-be-metered pipeline, an output pipeline, a guide mechanism, a small ball, a first photoelectric door and a second photoelectric door and is characterized in that the input pipeline, the to-be-metered pipeline and the output pipeline are sequentially integrally connected, the guide mechanism is arranged in the to-be-metered pipeline, the small ball rolls in the guide mechanism, the first photoelectric door and the second photoelectric door are used for measuring thespeed of the small ball, and the input pipeline and the output pipeline are respectively connected with two ends of the to-be-metered pipeline. The rolling ball type flowmeter has the advantages thatthe photoelectric doors measure the speed of the small ball, and the speed measuring is unaffected by medium temperature, pressure and density; due to the fact that the annular structure design is adopted, occupied length in the pipeline direction is reduced; the flowmeter is unlimited by front and rear straight pipelines; due to the fact that the flowmeter does not depend on gravity and buoyance,the flowmeter can be placed horizontally, limitation of vertical connection is avoided, and mounting convenience is increased; the signals of the photoelectric doors are pulse signals, so that measuring reliability and accuracy are increased as compared with other signals; compared with other speed type flowmeters, the flowmeter is small in pressure loss.

Description

technical field [0001] The invention relates to the technical field of flow measurement, in particular to a rolling ball flowmeter. Background technique [0002] Flow rate is the ratio of the amount of flow through the medium to the time required for the cross-section of the conduit through which the amount flows. [0003] Flow measurement is widely used in various fields of industrial and agricultural production, national defense construction, scientific research, foreign trade and people's life. With the development of industry, the requirements for the accuracy and range of flow measurement are getting higher and higher. In order to adapt to various purposes, various types of flowmeters have come out one after another. The commonly used flowmeters are positive displacement flowmeter, rotameter, turbine flow meter etc. These flowmeters can be divided into speed type, volume type, differential pressure type and mass type according to the principle. Velocity flowmeters ar...

AI Technical Summary

Problems solved by technology

[0004] Each type of flowmeter is made according to different physical principles. These different physical principles cause the flowmeter to have its own characteristics, scope of application, and affect accuracy and repeatability.

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