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『Liquid rotor flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
How does a rotor flowmeter read?
How to read a rotor flowmeter? The reading method is usually pointer reading, but there are also LCD readings. Pointer reading only reads instantaneous flow rate. For LCD, Sun Zhengmeng has instantaneous and cumulative flow rates. If there is bridge output, it can also be read from the display instrument. Reference: The intersection of the maximum cross-section of the rotor and the engraved line on the glass tube is the flow rate value. Read the markings on the surface clearly, but be aware that if the liquid is not water, and the temperature and pressure are not standard conditions, the reading should be corrected using a formula that is generally applicable.
2. What are the types of rotary flow meters?
Rotary flow meters are mainly divided into two categories: glass rotors and metal tube floats.
. 1. Glass rotor flow meters are usually of the local indication type or with switch signal output, which has strong corrosion resistance and can be used to detect the flow of acids (except hydrofluoric acid), alkalis, oxidants, and other corrosive gases or liquids. They are commonly used in industries such as chemical engineering, Shennian Qi Pharmaceutical, papermaking, and sewage treatment. However, due to the fragility of glass material, it is less commonly used at critical control points. Metal tube float flow meters are usually made in the form of flow transmitters, which can be divided into electric remote transmission and on-site pointer display types according to different converters. It mainly consists of three parts: indicators (such as intelligent indicators, local indicators), floats, and conical measuring chambers. The introduction of the new generatio_600x400.jpg)
3. Double rotor flowmeter II, working principle
Double rotor flowmeter is a uniquely designed volumetric flowmeter specifically used for measuring liquid flow rate.
. Its working principle is based on the meshing of a pair of spiral rotors with special tooth profiles, and there is no relative sliding between the two, without the need for synchronous gears. The rotational power source of the rotor comes from the small pressure difference generated by the fluid at the inlet and outlet. As shown in the figure below, at a certain moment on a certain cross-section, although a pair of rotors experience different fluid rotational torques, the resultant torque of the rotational torques on all cross-sections remains equal for both rotors. Therefore, the two rotors rotate at a constant speed and equal torque to ensure balanced displacement without pulsation. Each rotor can output 8 times the volume of the cavity per revolution, therefore, the rotational speed of the rotor is proportional to the cumulative flow rate of the fluid, and the rotational speed of the rotor is proportional to the instantaneous flow rate of the fluid. The rotational motion of the rotor is transmitted to the meter counter through a magnetic coupling, and the counter displays the flow rate through the flowmeter (flowing through the pipeline). This design enables the dual rotor flowmeter to have high precision, stability, and reliability, making it suitable for various industrial applications. Dual rotor flow meters can be divided into two forms based on th