Principle of V-cone flowmeter| Ultrasonic flowmeter manufacturer for measurement

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1. How to comprehensively understand V-cone flowmeter or differential pressure flowmeter

RD-LVD series V-cone flowmeter is a new differential pressure flow measurement device. It uses a unique side wall gradually contracting throttling method, which changes almost all the disadvantages of conventional throttling devices and can meet the application requirements of various media. Its operating principle is the same as other types of differential pressure principles, based on the principle of energy conservation in sealed pipelines. Due to its unique design structure, the conical flowmeter has better performance. The combination of V-cone flow sensor and differential pressure transmitter forms a V-cone flow meter, which is currently one of the most advanced differential pressure flow meters. It can accurately measure the flow of various media within a wide Reynolds number range (8 × 103~5 × 107). The V-cone flow sensor is resistant to high temperatures and has no moving parts. Compared with ordinary throttling elements such as orifice flow meters, it has the advantages of high long-term accuracy, good stability, less influence from installation conditions, wear resistance, wide measurement range, and low pressure loss. It is suitable for measuring liquid, gas, and steam flow in various industries, especially for measuring dirty media. The V-cone flowmeter can measure the flow rate of various media such as gas phase, mixed gas phase, liquid phase, multiphase liquid, gas-liquid two-phase (moisture, liquid phase mass ratio ≤ 5%), powder, high viscosity, high flow rate, dirt, liquid phase containing solid suspended particles, solution vibration, electromagnetic interference, etc. under various working conditions (te

mperature and pressure). The fluid conditions can range from deep low temperature to supercritical state. The maximum working temperature is 850 ℃ and the maximum pressure is 42.0mpa. If special structural materials are used, the temperature and pressure can be even higher. It can measure a maximum Reynolds number of 5 million and a minimum Reynolds number of 8000 or even lower. Generate a differential pressure signal at this degree, ranging from a minimum of less than 0.1 kilopascals to a maximum of several tens of kilopascals. Working principle of V-cone flowmeter: V-cone flowmeter is a differential pressure type flow meter. The flow meter designed based on the differential pressure principle has a history of more than 100 years of application. The differential pressure flowmeter is based on the energy conversion principle in sealed pipelines, which means that for stable fluids, the pipeline pressure is inversely proportional to the square root of the medium flow velocity in the pipeline: as the velocity increases, the pressure will decrease. When the medium approaches the cone, its pressure will be p1. When the medium passes through the throttling area of the cone, the velocity will increase and the pressure will decrease to p2. As shown in Figure 1, both p1 and p2 are led to the differential pressure transmitter through the pressure tapping port of the cone flowmeter. When the flow velocity changes, the differential pressure value between the two pressure tapping ports of the cone flowmeter will increase or decrease. When the flow rate is the same, if the throttling area is large, the resulting differential pressure value is also large. The β value is equal to the throttling area of the cone divided by the cross-sect

Principle of V-cone flowmeter

1. How to comprehensively understand V-cone flowmeter or differential pressure flowmeter

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