Working principle and characteristics of glass rotor flow meter

Abstract: The information on the working principle and characteristics of the glass rotor flowmeter is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Working principle and characteristics of glass rotameter 1. Flow measurement method and instrument selection of glass rotameter Float flowmeter, also known as rotameter, is a kind of variable area flowmeter. Tube, circular cross section. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details of the working principle and characteristics of glass rotor flowmeters. Working principle and characteristics of glass rotameter 1. Flow measurement method and instrument selection of glass rotameter Float flowmeter, also known as rotameter, is a kind of variable area flowmeter, in a vertical cone that expands from bottom to top In the tube, the gravity of the circular cross-section float is supported by hydrodynamic forces, and the float can rise and fall freely within the conical tube. It moves up and down under the action of flow rate and buoyancy, and after balancing with the weight of the float, it is transmitted to the dial to indicate the flow through magnetic coupling. Generally divided into glass and metal rotameters. Metal rotameters are the most commonly used in the industry. Glass materials are usually used for corrosive media with small diameters. Due to the fragility of glass materials, the key control points are also rotameters made of precious metals such as titanium. . Second, the characteristics of glass rotor flowmeter: glass rotor flowmeter is the most commonly used flowmeter in industry and laboratories. It has the characteristics of simple structure, intuitive, small pressure loss, convenient maintenance and so on. The rotameter is suitable for measuring the diameter D through the pipe<The small flow of 150mm can also measure the flow of corrosive media. When in use, the flowmeter must be installed on a vertical pipe section, and the fluid medium passes through the rotor flowmeter from bottom to top. 3. Working principle of glass rotameter: The glass rotameter consists of two parts. One of the rotameters is a conical tube that gradually expands from bottom to top; the other part of the rotameter is placed in the conical tube and A rotor that can move freely up and down the centerline of the tube. When measuring the flow of the fluid, the fluid to be measured flows in from the lower end of the conical tube, and the flow of the fluid impinges on the rotor and generates a force on it (the magnitude of this force varies with the flow); when the flow is large enough , the resulting force lifts the rotor and raises it. At the same time, the measured fluid flows through the annular section between the rotor and the conical tube wall, and flows out from the upper end. When the force on the rotor when the fluid to be measured is flowing is exactly equal to the weight of the rotor in the fluid (called the displayed weight), the rotor is in a state of equilibrium and stays at a certain height. The analysis shows that the position height of the rotor in the conical tube has a corresponding relationship with the flow through. Therefore, by observing the position and height of the rotor in the conical tube, the corresponding flow value can be obtained. In order to make the rotor not touch the tube wall when moving up and down the centerline of the conical tube, two methods are usually used: one is to install a guide mandrel in the center of the rotor to keep the rotor on the centerline of the conical tube. Moving up and down, the other is that there are a series of inclined grooves on the edge of the rotor disc. When the fluid flows through the rotor from bottom to top, it bypasses the rotor while passing through the inclined groove to generate a reverse thrust, so that the rotor does not move around the center line. Stop and rotate to keep the rotor from hitting the pipe wall during operation. The rotor material of the rotor flowmeter can be made of stainless steel, aluminum, bronze, etc. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Working principle and characteristics of glass rotor flow meter'

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