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1. Measurement principle of wedge-shaped flowmeter
When the fluid passes through the beam dynamic wedge-shaped flowmeter, the wedge-shaped structure plays a key throttling role. This throttling process results in a pressure difference on the upstream and downstream sides of the flowmeter that has a square relationship with the actual flow rate. This pressure difference is cleverly introduced from the pressure taps on both sides. These differential pressure signals are then sent to the differential pressure transmitter, which converts them into electrical signals for output. Furthermore, these electrical signals are processed and calculated by specially designed intelligent flow integrators, and ultimately, we can obtain flow values from these tedious mathematical relationships. The flow calculation formula of a wedge flowmeter is based on the following formula: qv=C * ε * π * D ^ 2 * (2 * Δ P)/(1-m ^ 2/4 * ρ), where qv represents the flow rate of the fluid, measured in cubic meters per second (m3/s). The outflow coefficient C and the expansion coefficient ε are important parameters that affect flow rate. The ratio m (S1/D) of the opening area of the pressure port to the inner diameter of the pipeline can also affect the measurement results. Δ P represents the pressure difference, measured in pascals (Pa), while ρ represents the density of the measured medium, measured in kilograms per cubic meter (kg/m3). This formula reflects how flow meters convert pressure changes into actual flow values through physical phenomena and mathematical models. The extended data wedge flowmeter is a new type of flowmeter that began to gradually move towards practicality in the 1980s. Its detection component is a V-shaped wedge bl
2. Measurement principle of wedge-shaped flowmeter
When a fluid passes through a wedge-shaped flowmeter, due to the throttling effect of the wedge block, a differential pressure equal to the square of the flow rate is generated on its upstream and downstream sides. This differential pressure is drawn out from the pressure ports on both sides of the wedge block and sent to the differential pressure transmitter for conversion into an electrical signal output. After being calculated by a dedicated intelligent flow integrator, the flow rate value can be obtained.
. The flow equation of a wedge-shaped flowmeter is C επ D2 2 Δ Pqv=m1-m2 4 ρ, where qv represents fluid flow rate and m3/sC represents outflow coefficient; ε - swelling coefficient of expandable bonds; π D2m - the ratio of opening to pipe surface turbulence, S1/-4S1- bow shaped flow area, m2D - pipe inner diameter, m; Δ P - differential pressure, Pa ρ - measured medium density, kg/m33. Imported brands of wedge-shaped flowmeters
The main imported brands of wedge-shaped flowmeters include Emerson, Siemens, Weidun from the United States, Lite On from Germany, and Konko from the United States, each with a focus on accuracy, stability, and industry applications. 1. Brand List Emerson (USA): Its Rosemount series is the industry benchmark, with
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