A Simple Flow Meter

Abstract

The invention discloses a simple flow meter used in the fields of petroleum, chemical industry, etc., which comprises a pipe body, an impeller assembly and a display controller. The pipe body is provided with a liquid inlet, a liquid outlet and a measuring pipeline. The display controller includes The casing and the control module, the impeller assembly includes an impeller seat and a blade assembly, one end of the impeller seat extends into the measuring pipe, and the other end is fixed on the casing, a preamplifier is arranged in the impeller seat, and an induction coil is arranged in the preamplifier, and A permanent magnet is embedded in the center of the induction coil, an amplifier electrically connected to the control module is provided at the upper end of the induction coil, and the blade assembly includes a blade base, two or more blades located on the blade base, and a metal rod located on the blade; The two ends of the blade seat are connected to the impeller seat through bearings; the principle of the magnetic flux change in the induction coil caused by cutting the magnetic field line with the metal rod is used, and then the magnetic flux is amplified and displayed, so as to achieve simple overall structure, fast speed and high measurement precision.

Description

Technical field [0001] The invention relates to a flow meter, in particular to a simple flow meter with a plastic impeller. Background technique [0002] Flowmeter is one of the most important instruments in industrial measurement. At present, the commonly used flowmeter on the market is used to measure the volume flow of continuous flow liquid filled with closed pipes. However, it is not easy to measure the liquid with low viscosity and corrosion resistance. With the development and progress of production, the requirements for the accuracy and range of flow measurement are getting higher and higher, and the flow measurement technology is changing with each passing day. In order to adapt to various purposes, various types of flow meters have come out; currently more than 100 flow meters have been put into use. The plastic impeller flowmeter has already belonged to a relatively mature technology. It mainly relates to a flowmeter used in petroleum, chemical, smelting and other fiel...

AI Technical Summary

Problems solved by technology

The magnetic flux in the detection coil changes periodically accordingly, generating periodic induced potential, that is, the electric sweep signal. After being amplified by the amplifier, it is sent to the display instrument for display. However, the current plastic impeller flowmeter has a relatively simple structure, so the test The accuracy is not high, the measurement speed is not fast, and it cannot meet the needs of the growing industrialization

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