Self-Analysis of Differential Pressure Flow Meter

Abstract: Differential pressure flow meter self-analysis information is provided by excellent flow meter and flow meter manufacturers and quotation manufacturers. Differential pressure flowmeter is an instrument that calculates the flow 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. Differential pressure flowmeter consists of a primary device (detection piece) and a secondary device (differential pressure transfer. More flowmeter manufacturers select models and price quotations. You are welcome to inquire. The following are the details of the self-analysis article of differential pressure flowmeters. Different The pressure flowmeter is an instrument that calculates the flow according to the differential pressure generated by the flow detection piece installed in the pipeline, the known fluid conditions and the geometric dimensions of the detection piece and the pipeline. The differential pressure flowmeter consists of a primary device (detection piece) and a It is composed of secondary devices (differential pressure conversion and flow display instruments). Differential pressure flowmeters are usually classified in the form of detection parts, such as orifice flowmeters, Venturi flowmeters, uniform velocity tube flowmeters, etc. The secondary device is each It is a kind of mechanical, electronic, electromechanical integrated differential pressure gauge, differential pressure transmitter and flow display instrument. It has developed into a large category of instruments with a high degree of sanization (serialization, generalization and standardization) and a large variety of specifications. , it can measure not only flow parameters, but also other parameters (such as pressure, material level, density, etc.).The detection parts of differential pressure flowmeters can be divided into: throttling device, hydraulic resistance type, centrifugal type according to their principle of action , dynamic pressure head type, dynamic pressure head gain type and jet type. Detection parts can be divided into two categories according to their degree of standardization: standard and non-standard. The so-called standard detection parts are as long as they are designed according to standard documents, Manufacturing, installation and use, the flow value can be determined and the measurement error can be estimated without real flow calibration. The non-standard test piece is a test piece with poor maturity and has not been included in the international standard. Differential pressure flowmeter is a It is the most widely used flowmeter in this category, and its usage occupies the first place in all kinds of flowmeters. In recent years, due to the advent of various new flowmeters, its usage percentage has gradually declined, but it is still the most important one. Advantages: (1) The most widely used orifice plate flow meter 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) The detection piece, transmitter and display instrument are produced by different manufacturers, which is convenient for economies of scale. Disadvantages: (1) The measurement accuracy is generally low; (2) The range is narrow, generally only 3:1~4:1; (3) High requirements for on-site installation conditions; (4) Large pressure loss (referring to orifice plates, nozzles, etc.) Application overview: Differential pressure flowmeters have a particularly wide range of applications, and are used in various objects in the flow measurement of closed pipelines , such as fluid: single-phase, mixed-phase, clean, dirty, viscous flow, etc.; working state: normal pressure, high pressure, vacuum, normal temperature, high temperature, low temperature, etc.; pipe diameter: from a few mm to a few m; flow conditions Aspects: subsonic speed, sonic speed, pulsating flow, etc. Its consumption in various industrial sectors accounts for about 1/4~1/3 of the total consumption of flowmeters. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection of our factory, Quotation, etc. 'Self-Analysis of Differential Pressure Flow Meter'

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