Talking about the principle and scope of application of elbow flow meter

Abstract: Talking about the principle and scope of application of the elbow flowmeter, what information is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. A fluid flows through a pipe at a certain temperature and pressure. When it flows through a turn, the fluid will make a corresponding circular motion. According to the theory of forced swirl of fluid, the fluid moves in a circular motion in the pipe and the solid moves circularly in the space state. For more flowmeter manufacturers to select models and price quotations, you are welcome to inquire. The following are the details of the articles discussing the principle and scope of application of elbow flowmeters. A fluid flows through a pipe at a certain temperature and pressure. When it flows through a turn, the fluid will make a corresponding circular motion. According to the fluid forced swirl theory, the circular motion of the fluid in the pipe is similar to the circular motion of the solid in the space state, so the fluid will inevitably generate an inertial centrifugal force, and the magnitude of the centrifugal force is related to the fluid velocity, the fluid density and the circular motion The radius of curvature (that is, the radius of curvature of the elbow flowmeter sensor) is related to factors such as the radius of curvature. Since the radius of curvature of the sensor of the elbow flowmeter is known, the density of the fluid flowing through the elbow sensor can be accurately obtained by the computer of the host computer by measuring the temperature, pressure and other parameters of the fluid. The magnitude of the centrifugal force is only a function of the fluid velocity. As long as the centrifugal force is measured, the flow rate of the fluid in the pipeline can be measured, and the flow rate of the fluid can be calculated and determined by multiplying the flow rate by the cross-sectional area of ​​the pipeline and the density of the fluid. The calculation relationship is as follows: Formula (1) gives the functional expression V=a[(P1-P2)/ρ]β ---------① Among them: V---the average flow velocity of the fluid; a---comprehensive flow coefficient, a=f (bend-to-diameter ratio, Reynolds number, medium dynamic viscosity, pipe roughness etc.), among which the influence of the bend-diameter ratio is the most important: P1-P2-----the pressure difference between the inner and outer sides of the elbow; ---- the density of the fluid; ---- index; calculate the average flow velocity V, The function expression for calculating the flow can be obtained: Q=S*V*ρ------------②Where: S----cross-sectional area of ​​elbow; V---average flow rate of fluid; scope of application of elbow flowmeter 1. Elbow flowmeter Nominal diameter: 25mm≤ DN≤ 2000mm2, nominal pressure: PN≤ 10MPa3, medium temperature: t≤ 450°C (t450°C notified when ordering) 4. Reynolds number range of elbow flowmeter: ReD1045, accuracy grade: 1, 1.5 6. elbow flowmeter R/D≥ 1.25 The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'On the principle and scope of application of elbow flowmeter'

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