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1. Which type of flow meter is more suitable for measuring biogas? The most suitable flow meters for measuring biogas include vortex flow meters, electromagnetic flow meters, and thermal gas mass flow meters. The appropriate products can be selected according to the actual working conditions. 1. The vortex flowmeter works based on the Karman vortex principle, and calculates the flow rate by detecting the regular vortex frequency generated by the vortex generator. Advantages: Simple structure, easy installation, high precision measurement accuracy, wide range ratio, and can adapt to a certain temperature and pressure fluctuation range. Applicable scenarios: Suitable for situations where the composition of biogas is relatively clean and there are basic requirements for measurement accuracy
2. The electromagnetic flowmeter determines the flow rate by measuring the induced electromotive force generated by the cutting magnetic field of a conductive fluid based on Faradays law of electromagnetic induction. Advantages: High measurement accuracy, not affected by the density, viscosity, and temperature of biogas, and low pipeline pressure loss. Applicable scenarios: Suitable for scenarios where biogas contains certain moisture or impurities and requires high measurement accuracy for infiltration. 3. Thermal gas mass flow meters use the principle of thermal conduction to directly calculate mass flow rate by measuring the heat carried away by the gas flowing through the sensor. Advantages: It can directly output mass flow data without additional temperature and pressure compensation, has a large range ratio, and can also measure low flow rate biogas. Applicable scenarios: Suitable for situations where high measurement acc
2. What type of flowmeter should be selected for measuring biogas working conditions
Based on different application scenarios of biogas working conditions, I have compiled 5 flowmeter models with strong adaptability and core parameter comparison 1 OPTISONIC 7300 Biogas Ultrasonic Flow Meter - Suitable for dry/wet low-pressure biogas measurement with high CO ₂ content, suitable for landfill and sewage treatment scenarios - Core parameters: single/dual channel optional, flange diameter DN50-200/2-8 inches, maximum pressure rating PN10/ASME Cl 150, range ratio 100:1, integrated gas volume correction and methane content measurement function 2 Heshunda VN Series Turbine Flowmeters - Adaptation Scenarios: Conventional biogas flow measurement, suitable for small-scale biogas use - Core Parameters: Accuracy Class 1.0, Working Pressure 0.6-2.5MPa, Working Temperature -200 ℃~-30 ℃, Basic Measurement Range 15m ³/h, Available in VN-1
5, VN-2
5, VN-45 and other caliber models. There is also an intelligent vortex street biogas flowmeter of the same brand that can adapt to a wider range of scenarios VTON imported biogas vortex flowmeter from the United States - adaptation scenarios: biogas with complex composition and large flow rate fluctuations, working conditions containing a small amount of water vapor and trace particles, installation scenarios with insufficient straight pipe sections - core advantages: strong adaptability to the fluctuation of biogas composition, few installation restrictions, suitable for gas supply measurement in biogas power plants, gas production monitoring in biogas digesters in agricultural and pastoral ar