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『Selection of Hydrogen Flow Meter』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. Science popularization: Which flow meter can be used to measure hydrogen?
For measuring hydrogen, a V-cone flow meter can be selected.. The V-cone flowmeter is a differential pressure flowmeter suitable for measuring gases such as hydrogen. High temperature and high pressure resistance: The V-cone flowmeter can work stably in high temperature and high pressure environments, suitable for measuring hydrogen gas under special working conditions. Wide range ratio: It has a wide measurement range and can adapt to hydrogen measurement under different flow conditions. Jiehuai Bi fiber structure is simple: the design is concise, easy to install and maintain, and reduces the cost of use. Self cleaning function: The V-cone flowmeter has self-cleaning ability, and the lead imitation is not easy to cause blockage or impurity retention, ensuring the accuracy of measurement and the long-term stability of the equipment.
2. How to measure hydrogen with a rectangular flowmeter
The core of measuring hydrogen with a rectangular flowmeter lies in the selection, standardized installation, accurate calibration, and regular maintenance.
.1. Installation Preparation 1 Selection and adaptation: Choose a flow meter based on the hydrogen flow range, pressure, and temperature. High pressure scenarios require pressure resistant materials, and wide range models should be selected for large flow fluctuations. two Location selection: The installation point should be far away from the valve or elbow, ensuring that the upstream straight pipe section is ≥ 10 times the pipe diameter and the downstream is ≥ 5 times the pipe diameter, to ensure stable flow. three Pipeline inspection: Remove impurities from the pip
2. Installation Process 1 Pipeline cutting: Accurately cut according to the size of the flow meter to ensure a smooth and burr free cut. two Flange welding: Align the sealing surface of the matching flange vertically, clean up the welding slag after welding to prevent blockage. three Equipment fixation: Install a hydrogen specific sealing gasket between the flowmeter and the flange, and tighten the bolts symmetrically to avoid uneven stress. four Signal connection: Connect the display instrument according to the wiring diagram, and the shielded cable needs to be grounded to prevent electromagnetic interference caused by lithium leakage.
III. Measurement Process 1 Zero calibration: After powering on, close the valve and calibrate the flowmeter to zero without drift. two Slow ventilation: Gradually open the valve until the hydrogen gas flows smoothly, avoiding sudden pressure changes that may impact the sensor. three Data collection: Read instantaneous flow and cumulative values through matching instruments, and synchronously record temperature and pressure parameters to correct errors.
4. Maintenance and Calibration 1 Daily inspection: Check the sealing of the interface every week and identify the risk of hydrogen leakage. two Periodic cleaning: If the hydrogen gas contains impurities, remove the filter screen every quarter for cleaning to prevent blockage. three Regular calibration: After running for 3000 hours every six months or cumulatively, use a standard table to compare and calibrate. If the deviation exceeds 1%, it needs to be returned to the factory for adjustment.