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『Dual vortex flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. Technical parameters of vortex gas flowmeter
The technical parameters of vortex gas flowmeter are as follows: caliber range: from DN15 to DN3000mm, even larger, with rubber liquid resistance and wide applicability. Nominal pressure: covering 0.6MPa to 42MPa, ensuring stable operation under various working conditions. Working temperature: ranging from 200 ℃ to+500 ℃, and can even withstand higher temperature conditions. Accuracy control: Control within the range of ± 0.2% to ± 1.5% FS to ensure the accuracy of measurement results. Range ratio: 1:10, able to adapt to flow changes and provide a wide measurement range. Shell material: Available in carbon steel and stainless steel, or with fluorine lining. Power supply method: Equipped with a built-in 3.6VDC lithium battery, with a replacement cycle of two years; Simultaneously supporting external 24VDC power supply, providing flexibility. Output signal: Provides standard 4-20mA two-wire signal and pulse output 0-1000Hz; supports RS232/RS485 interface, can be customized according to Liang Chuns needs. Protection level: IP65, ensuring safe operation of the equipment in various environments. Safety performance: Compliant with explosion-proof standards, certified with intrinsic safety ExiallCT4 and explosion-proof ExdllCT4. Header display function: including cumulative flow rate, instantaneous flow rate, operating temperature, operating pressure, and self inspection of buried rubber barriers, providing comprehensive real-time and long-term operating information. Connection methods: including taper pipe thread type, clamp type, and double flange type, ensuring seamless connection with various pipeline systems.
2. How to adjust inaccurate vortex flowmeter
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The measurement of inaccurate vortex flowmeter needs to be systematically investigated and adjusted from three aspects: installation conditions, parameter settings, and interference elimination.
1 Installation condition inspection: Installation problems are the most common cause of measurement errors and need to be focused on: • Straight pipe section requirements: Ensure that there is a straight pipe section upstream of the flowmeter with a diameter of 10-40 times the diameter, and a straight pipe section downstream with a diameter of 5 times the diameter, to avoid interference from flow elements such as elbows and valves affecting the flow field • Full pipe status confirmation: Check whether there is gas-liquid two-phase flow or incomplete pipe in the pipeline, and the installation position should avoid the highest point of the pipeline to prevent gas accumulation • Sensor centering installation: Check whether the probe is aligned with the centerline of the pipeline and whether the sealing gasket is offset, causing changes in the flow area. 2 Parameter setting calibration • Instrument coefficient verification: Re enter the instrument coefficient (unit: pulse number/cubic meter) marked on the nameplate into the converter. Incorrect coefficient will cause linear deviation • Medium parameter setting: Re enter the actual medium density (kg/m ³) and viscosity (cP), and steam medium needs to compensate for temperature and pressure parameters • Range setting: Check whether the upper and lower limits of the range cover the actual flow range. It is generally recommended that the working flow rate be between 30% and 70% of the full range Interference elimination measures • Vibration interference handling: Install shock-abs