Balance flow meter calculation formula analysis

Project Overview

　　Balance flow meter based on Bernoulli's equation, in line with national standards GB/2624 standard, sealed pipeline energy conversion principle: in the case of ideal fluid pipeline energy and the square root of the differential pressure is proportional to the square root of the pressure; with the measured value of the differential pressure according to the Bernoulli's equation can be calculated in the pipeline flow. That balance the importance of the flow meter formula and application you understand?

　　First, the pipeline flow rate formula

　　This is one of the most basic equations in the balance flow meter, which is based on the law of conservation of mass of the fluid. By measuring the pressure difference and density in the pipeline, the flow rate of the fluid can be calculated.

　　Second, the flow rate calculation formula

　　According to Bernoulli equation and differential pressure signal, the flow rate in the pipeline can be calculated. The specific flow rate calculation formula may contain the following parameters:

　　Qm: mass flow rate (kg/s)

　　Qv: volume flow rate (m³/s)

　　C: outflow coefficient

　　ε: Expandability coefficient

　　d: diameter of the throttle opening (m)

　　β: diameter ratio (the ratio of the diameter of the throttle opening to the inner diameter of the pipe)

　　D: pipe inner diameter (m)

　　ρ: measured fluid density (kg/m³)

　　ΔP: differential pressure (Pa)

　　These parameters together determine the accurate calculation of flow.

　　Third, the fluid density formula

　　Fluid density is one of the important parameters for calculating fluid flow rate. It can be obtained by measuring the mass and volume of the fluid and applying the density calculation formula. This formula can be adjusted according to the composition of the fluid and temperature and other factors to improve the accuracy of the measurement.

　　IV. Pressure-flow rate relationship formula

　　The formula describes the relationship between the fluid flow rate and the pressure difference in the pipe. It can be derived from experimental measurements or based on the principles of fluid mechanics. This formula is critical in determining the sensitivity and accuracy of the flow meter.

　　V. Other considerations

　　In practice, it is also necessary to consider the compressibility of the fluid, viscosity, temperature and other factors on the flow meter. These factors may lead to measurement errors in the flow meter, so the flow measurement needs to be corrected and compensated accordingly.

　　The equations for balanced flow meters involve several parameters and complex physical principles. In order to obtain accurate measurement results, you need to carefully select the type and specifications of the flowmeter, and install and use it correctly. It is also necessary to maintain and calibrate the flowmeter regularly to ensure its long-term stable operation. Hersheng Measurement and Control HSP series balanced flowmeter is suitable for almost all fluid measurements, which is a revolution in fluid measurement technology and has been widely used in petroleum, chemical, metallurgy, electric power, natural gas, water treatment and other industries.