Overview of Rotameter Meters

Abstract: The overview information about the rotor flowmeter is provided by the excellent flowmeter and flowmeter manufacturers. Rotameters can be divided into two categories: glass tube rotameters and metal tube rotameters according to the different cone tube materials. Rotameter, also known as rotameter, is a device that estimates the flow by measuring the position of the rotating parts in the DC pipeline. is the base. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is an overview of the rotor flowmeter for details. Rotameters can be divided into two categories: glass tube rotameters and metal tube rotameters according to the different cone tube materials. Rotameter, also known as rotameter, is a device that estimates the flow by measuring the position of the rotating parts in the DC pipeline. It is a variable area flow meter based on float position measurement. It adopts all-metal structure, which has small pressure loss, large range ratio (10:1), convenient installation and maintenance, and can be widely used in complex, harsh environments and various medium conditions. Flow measurement and process control. The working principle of the rotameter The rotameter consists of two parts. One of the rotameters is a tapered tube that gradually expands from bottom to top; Rotors that move freely up and down. 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 produces a force on it (the magnitude of this force varies with the flow); when the flow is large enough When the force is generated, the rotor is lifted up and raised. At the same time, the fluid to be measured 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 rotameter is a type of variable area flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of the float with a circular cross-section is borne by the hydrodynamic force, and the float can rise and fall freely in 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. Rotameters are 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, rotameters made of precious metals such as titanium are also used for key control points. . 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 keep the rotor from touching 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 on one side, and at the same time passes 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 touching the pipe wall when working. The rotor material of the rotameter can be made of stainless steel, aluminum, bronze, etc. Features of Rotameter Rotameter is one of the most commonly used flowmeters 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. The glass tube rotameter has a simple structure and low cost, and is easy to be made into an anti-corrosion instrument. It is mostly used for on-site measurement of transparent fluids. The metal tube rotameter can output standard signals, and can realize flow indication calculation, recording and control, etc. Function. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Overview of Rotameter Meters'

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