Flowmeters installed on the outer wall of large-diameter pipes in the water industry

Abstract: The information of flowmeters installed on the outer wall of large-diameter pipes in the water industry is provided by excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Insertion type ultrasonic flowmeter and electromagnetic flowmeter can better solve the problem that the instrument's accuracy is reduced or even unusable due to the entanglement of debris in the active part of the instrument in the measurement of large-diameter pipelines. Some parts used in the instrument are covered with sundries, which affect normal reliability. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the flowmeters installed on the outer wall of large-diameter pipes in the water industry. Insertion type ultrasonic flowmeter and electromagnetic flowmeter can better solve the problem that the instrument's accuracy is reduced or even unusable due to the fact that the moving part of the instrument is entangled by debris in the measurement of large-diameter pipelines. Some parts used in the instrument are covered with debris that affects the normal signal, while other parts are affected by scaling. At the same time, flowmeters in large pipelines are too bulky, extremely inconvenient to install and transport, expensive, and consume a lot of energy. Structure and principle 1. Structure and principle of insertion ultrasonic flowmeter The insertion ultrasonic flowmeter consists of a converter and a pair of insertion sensors. The plug-in sensor consists of a positioning seat, a ball valve and a sensor core. Principle: When the ultrasonic wave passes through the liquid, the liquid has little effect on the transmission and insertion time, and the change of the transmission and insertion time is proportional to the liquid flow rate. 2. The structure and principle of the plug-in electromagnetic flowmeter The plug-in electromagnetic flowmeter consists of a converter and a single plug-in sensor. There are two types of plug-in sensors: with ball valve and without ball valve. The measuring principle is based on Faraday's law of electromagnetic induction. When the conductive liquid flows into the measuring tube enclosed in the magnetic field, an induced electromotive force E proportional to the average velocity will be generated in the direction perpendicular to the flow velocity and the magnetic field. The magnetic field strength b is a constant (controlled by the coil current), and the distance between the monitoring electrodes is also fixed, so the liquid flow velocity v is the only variable of the induced electromotive force e, and the output signal of the electromagnetic flowmeter has a linear relationship with the flow rate. The biggest feature of the insertion type ultrasonic flowmeter and the insertion type electromagnetic flowmeter is that they can be installed under pressure without stopping production and power failure during the installation process. At the same time, for straight-edge pipes, the price-performance ratio is very superior. It is the best choice for large pipeline flowmeters. 1. The plug-in ultrasonic flowmeter has all the technical features of ultrasonic flowmeters. It is not affected by changes in temperature, pressure, density, accuracy and conductivity; the sensor has a simple structure, no throttling, and no clogging. It can display instantaneous flow, instantaneous flow, positive, negative and net totals, etc. Memory function: It can memorize the accumulated amount of sun, moon and year, as well as the on and off time of the power supply; two loop signals (temperature, pressure and liquid level) can be input; there are various options for output mode: RS 2324854-20ma 02 maoct cumulative pulse frequency; with network working mode and self-diagnosis function; programmable batch (quantitative) controller Technical characteristics of electromagnetic flowmeter: low cost; no moving parts, parts not in contact with the medium are made of stainless steel, long service life; easy to install and maintenance-free; one type of flow sensor can be used for various pipe diameters, giving options And the use brings great convenience; the plug-in electromagnetic flowmeter is suitable for the pipeline of DN200-DN2000 (above DN2000, it should be explained). For more information, please visit the company's official website /. Please keep this link when reprinting! The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Flowmeters installed on the outer wall of large-diameter pipes in the water industry'

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