Types of flow meters and working principle of flow meters

Abstract: Information on the types of flow meters and the working principle of flow meters are provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. Types of flowmeters and working principle of flowmeters An instrument used to measure the fluid flow in the pipeline (the volume of fluid passing through a unit of time). There are rotor flowmeters, throttle flowmeters, slit flowmeters, volumetric flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the article on the types of flowmeters and the working principle of flowmeters. The type of flowmeter and the working principle of the flowmeter are instruments used to measure the fluid flow in the pipeline (the volume of fluid passing through a unit of time). There are rotor flowmeters, throttle flowmeters, slit flowmeters, volumetric flowmeters, electromagnetic flowmeters, ultrasonic flowmeters and weirs. There are many types of flow measurement methods and instruments, and many classification methods. So far, there are as many as 60 types of flow meters available for industrial use. The reason why there are so many varieties is that a flow meter that is suitable for any fluid, any range, any flow state and any use conditions has not yet been found. The total meter measures the flow through the pipeline for a period of time, which is expressed by dividing the total amount flowing in a short period of time by the quotient of the time. In fact, the flow meter is usually also equipped with a cumulative flow device, which is used as a total meter. The total meter is also equipped with a flow signalling device. Therefore, it has no practical significance to divide the flow meter and the total meter in a strict sense. According to the measurement principles, there are mechanical principles, thermal principles, acoustic principles, electrical principles, optical principles, and atomic physics principles. According to the most popular and extensive classification method at present, it is divided into: volumetric flowmeter, differential pressure flowmeter, float flowmeter, turbine flowmeter, electromagnetic flowmeter, vortex flowmeter in fluid oscillation flowmeter, mass flowmeter Flowmeters, insertion flowmeters, and probe flowmeters, respectively, to explain the principles, characteristics, application overview and development of various flowmeters at home and abroad. The differential pressure flowmeter is an instrument that calculates the flow rate according to the differential pressure generated by the flow detection element installed in the pipeline, the known fluid conditions and the geometric dimensions of the detection element and the pipeline. The differential pressure flowmeter consists of a primary device (detection piece) and a secondary device (differential pressure conversion and flow display instrument). Differential pressure flowmeters are usually classified in the form of test pieces, such as orifice flowmeters, Venturi flowmeters, and uniform velocity tube flowmeters. The secondary devices are various mechanical, electronic and electromechanical integrated differential pressure gauges, differential pressure transmitters and flow display instruments. It has been developed into a large class of instruments with a high degree of three-dimensionalization (serialization, generalization and standardization) and a large variety of specifications. It can measure both flow parameters and other parameters (such as pressure, level, density, etc. ). The detection parts of the differential pressure flowmeter can be divided into: throttling device, hydraulic resistance type, centrifugal type, dynamic pressure head type, dynamic pressure head gain type and jet type according to their principle of action. Test pieces can be divided into two categories according to their degree of standardization: standard and non-standard. The so-called standard test piece is designed, manufactured, installed and used in accordance with the standard document, and its flow value can be determined and the measurement error can be estimated without real flow calibration. Advantages of flowmeter: (1) The most widely used orifice plate flowmeter has a firm structure, stable and reliable performance, and long service life; (2) It has a wide range of applications, and so far there is no other type of flowmeter that can be compared with it; (3) Detection The parts, transmitters, and display instruments are produced by different manufacturers, which is convenient for economies of scale. Disadvantages of flowmeter: (1) The measurement accuracy is generally low; (2) The range is narrow, generally only 3:1~4:1; (3) The field installation conditions are high; (4) The pressure loss is large (referring to the orifice plate, nozzles, etc.). The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Types of Flow Meters and Working Principles of Flow Meters'

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