Why need flow meter for nitrogen gas?
Nitrogen, with the chemical formula N₂, is a colorless and odorless gas. Nitrogen is usually called an inert gas, and its chemical properties are very inactive. Nitrogen combines with many metals to form hard nitrides, which can be used as wear-resistant metals. Nitrogen gas can be used to make ammonia, nitric acid, nitrates, cyanide, etc.,; filling high temperature thermometers, incandescent light bulbs; forming an inert material to preserve materials, used in dry boxes or glove bags. Liquid nitrogen can be used for food freezing; as a coolant in laboratories. In industrial production, we often need to measure the flow of nitrogen in the pipeline, and an electronic nitrogen flow meter is essential in industry.
Turbine flowmeter-perfect electronic nitrogen gas flow measurement
Turbine flowmeter(TUF flow meter ) is a commonly used digital nitrogen flowmeter. The structure of the nitrogen flowmeter sensor is: the center of the impeller shaft coincides with the axis of the pipeline, and the turbine blades form a certain angle with the impeller shaft. When the n2 gas flows in the same direction as the shaft, the turbine is pushed to rotate, the rotation speed is proportional to the N2 gas flow rate.
At present, Silver Automation Instruments manufacture electronic gas turbine flowmeter has an external oil injection structure, which can continuously run for a long time to measure the volume flow of nitrogen gas. N2 gas flow sensor is designed with inlet and outlet rectifiers, and generally uses oil-filled bearings to obtain high accuracy of nitrogen gas volumetric flow measurement.
Turbine flowmeter is a kind of inline industrial velocity flowmeter. As a nitrogen electronic gas flowmeter, it has small pressure loss, high accuracy, wide flow range ratio, and good anti-vibration and anti-pulsation flow performance.
As a commonly used nitrogen gas flowmeter, the gas turbine flowmeter has been developed into a multi-variety, full-series, multi-specification mass production scale. Turbine flowmeter is used for accurate measurement of gas volume flow. The rotational speed of the turbine is proportional to the gas flow.
Advantages of Digital nitrogen gas flow meter
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It integrates a gas flow sensor and a volume corrector, which can automatically track and correct nitrogen temperature, pressure and compression factor, and directly detect and measure the standard volume flow and total amount of nitrogen.
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The nitrogen flowmeter sensor adopts special high-grade precision bearing, which has high accuracy and good stability.
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The well-designed flow tube avoids the nitrogen flow into the bearings and improves the adaptability of the turbine flowmeter.
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Gas turbine flowmeter bearing operates reliably for a long time.
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The nitrogen turbine flowmeter has the advantages of high sensitivity, good reliability and low starting flow.
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The nitrogen sensor has a rectifier with excellent performance, and the requirements for the front and downstream straight pipe sections are very low.
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A network communication system can be formed through the RS 485 interface, which can facilitate automatic management. The RS 485 communication protocol conforms to the M0DBUS specification.
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The electronic display can be rotated 180°which is easy to install.
Technical parameter of nitrogen flow meter
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Process connection: inline flanged connection, ANSI, ASME, B16.5, DIN, JIS;
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Power supply voltage: 24VDC or lithium battery power supply
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Nitrogen flow sensor size: 1”, 2inch, 3” dial size, 4”,6 inch, 8 inch, 10 inch;12 inch 16”,DN25, 50mm, 80mm, DN100, DN150, DN200, DN250, DN300, DN400;
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N2 gas Operation pressure range: PN10, PN16, PN25, PN40, 150LB, #300., etc
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Turn down ratio: 1:10
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Gas flow transmitter consumption: less than 5W
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N2 Gas flow range can be measured: 2 -10000 m3/h
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Accuracy: ±1.5% R or ±1.0 % R
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Digital gas flow transmitter Output: 4-20mA, frequency, pulse
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Flow sensor material: SUS 304 or 316
