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1. Exquisite differential pressure sensor
2. Orifice flowmeter has a maximum flow rate of 3200m3/h and a normal flow rate of 3000m3/h. Minimum flow rate of 2000m3/h, please ..
According to the modified formula of Qianshan, the calculation: excitation judgment
3. What is the formula for differential pressure flowmeter?
1. Basic formula expression: Q=K ⋅ C ⋅ ρΔ P Applicable scenarios: typical differential pressure flow measurement equipment such as standard orifice flow meters. Parameter description: K (instrument constant): determined by the structure of the flowmeter and needs to be determined through calibration experiments. For example, there is a significant difference in the K value between a Venturi tube and an orifice flowmeter. C (Orifice Plate Coefficient): Influenced by the ratio of orifice plate opening diameter β (β=d/D, where d is the orifice plate opening diameter and D is the inner diameter of the pipeline) and the pressure measurement method (corner joint/flange pressure measurement). The ISO 5167 standard provides a lookup table for this coefficient. Δ P (pressure difference): It can be directly measured by the differential pressure transmitter through leakage and closing, and it should be noted that the pressure measuring point should be located in the fully developed flow field area. Backcracking ρ (fluid density): Temperature and pressure compensation is required for gases, while temperature effects are mainly considered for liquids.
4. How to calculate flow rate with differential pressure flowmeter
Differential pressure flowmeter is a type of flowmeter, and its calculation formula is related to the relationship between differen
2. Differential pressure is proportional to the square of the flow rate: Δ P ^ 2=K * Q ^ 2, where K is a constant and can be provided by the manufacturer or calibrated
3. Differential pressure is proportional to the square root of the flow rate: √ Δ P=K * √ Q, where K is a constant and can be provided by the shading manufacturer or calibrated
4. Standard orifice flowmeter: Q=(π D ^ 2/4) (2 Δ P/(ρ g)), where Q is the flow rate, D is the orifice diameter, Δ P/(ρ g) P is differential pressure, ρ is fluid density, g is gravitational acceleration
5. Standard Venturi flowmeter: Q=(π D ^ 2/4) (Δ P/(ρ gV)), where Q is flow rate, D is pipeline diameter, Δ P is differential pressure, ρ is fluid density, g is gravitational acceleration, and V is the blockage ratio of the Venturi tube. These formulas are only a part of the calculation formula for differential pressure flow meters. In practical applications, suitable and empty calculation formulas need to be selected according to specific situations and parameters. When using a differential pressure flowmeter, attention should also be paid to issues such as accuracy and range, and appropriate measurement methods and equipment should be selected.