Large-aperture ultrasonic water meter with automatic correction and correction method thereof

Abstract

The invention discloses large-aperture ultrasonic water meter with automatic correction and a correction method thereof. The large-aperture ultrasonic water meter comprises a measuring pipe, a water meter body and a central processing unit, wherein the water meter body comprises an upper shell and a lower shell, a filtering mechanism is arranged at a water inlet of the measuring pipe and comprisesan annular plate, the outer surface of the annular plate is movably connected with the right side of the inner wall of the measuring pipe, and the right side of the inner wall of the annular plate isfixedly connected with a primary filter screen. The invention relates to the technical field of ultrasonic water meters. According to the large-aperture ultrasonic water meter with automatic correction and the correction method thereof, the outer surface of the annular plate is movably connected with the right side of the inner wall of the measuring pipe, the filtering mechanism is arranged in the measuring pipe, when water flow enters the measuring pipe, impurity particles in the water are filtered through the primary filter screen and the activated carbon filter screen, and the inner wall of the measuring pipe is prevented from scaling in the use process, so that the measurement value of the ultrasonic water meter is accurate, and the correction result has low possibility of errors.

Description

technical field [0001] The invention relates to the technical field of ultrasonic water meters, in particular to an automatically corrected large-diameter ultrasonic water meter and a calibration method thereof. Background technique [0002] Ultrasonic water meter is a new type of water meter that detects the time difference caused by the change of velocity when the ultrasonic sound beam propagates in the water upstream and downstream, and analyzes and processes the flow velocity of water to further calculate the flow of water. It is characterized by low initial flow velocity and large range Specific width, high measurement accuracy, stable operation, no moving parts and flow-blocking elements inside, not affected by impurities in water, long service life, complete output communication functions, meeting various communication and wireless networking requirements, and excellent small flow detection capability , can solve the problems of many traditional water meters, is more ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides an automatic calibration large-diameter ultrasonic water meter and its calibration method, which solves the problem that under the influence of impurities carried in the water flow, a large amount of dirt tends to accumulate on the inner wall of the pipeline, which causes the measurement pipeline to fail. The inner diameter becomes smaller, and the inner wall after scaling is uneven, which makes the measurement value prone to errors during the process of measurement and calibration, which affects the calibration results.

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