How to choose a Hydrogen flow meter? Hydrogen is a valuable and widely measured industrial gas. Custody transfer metering is a very important feature of hydrogen flow measurement.
Common gas flow meters include thermal mass flow meters, vortex flow meters, precession vortex flow meters, and gas ultrasonic flow meters. How to select a hydrogen flow meter? Next, we will discuss in detail.
Sino-Inst offers a variety of Hydrogen flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Characteristics of hydrogen
Hydrogen (chemical formula H2) consists of two hydrogen atoms, which is colorless, tasteless, odorless, non-toxic, and flammable. With a molecular weight of 2, and a specific gravity of 0.0695, hydrogen is considered the lightest gas, more than 14 times lighter than air (mv=28.8).
Hydrogen is very flammable. Under normal pressure, a mixture with a hydrogen content of 4.0% to 74% can be flammable. Since the minimum ignition energy of hydrogen (0.02mJ—one order of magnitude smaller than the minimum ignition energy of hydrocarbons) is very small, strict precautions must be taken to prevent leakage.
The most preferred hydrogen flow meter
Thermal Mass Flow Meter can directly measure the mass flow of various gases. Unaffected by changes in viscosity, density, temperature, or pressure.
Thermal Mass Flow Meter is a true mass flow meter. No temperature and pressure compensation is required. Thermal gas mass flow meters are designed based on the principle of thermal diffusion. Including natural gas, coal gas, liquefied gas, flare gas, argon, carbon dioxide and other mixed gas flow measurement.
Mass flow measurement of hydrogen
At present, the Coriolis mass flowmeter and thermal gas mass flowmeter are the most reliable and the most reliable hydrogen flow measurement applications. Both of these are flow meters for direct mass flow measurement, and neither have movable parts and have a large range. The fluid contact surface is made of 316L, which improves the durability and safety of field application.
The sensors of Coriolis mass flowmeter and thermal gas mass flowmeter are all welded. Because the pressure sensor interface and temperature sensor are not required to correct the flow reading to the volume flow under the standard state. Therefore, the system pipe joint used Be reduced to a minimum.
The sensor connection method has flange connection, flange to clamp connection, thermal gas mass flowmeter can also provide large pipeline plug-in connection.
Coriolis mass flowmeters and thermal gas mass flowmeters can provide up to 0.5% accuracy due to their excellent detection technology, which has huge advantages in trade settlement and measurement.
These two types of flow meters have advanced measurement technology, good long-term application stability, and extremely low on-site maintenance costs. They are very popular measuring instruments.
The shortcomings of Coriolis mass flow meters: large pipe diameters are bulky, inconvenient to install, and extremely expensive to purchase. It is inferior to the thermal gas mass flowmeter in the small flow measurement characteristics.
Disadvantages of thermal gas mass flow meters: the high flow rate range is not as good as Coriolis mass flow meters. In order to accurately measure the hydrogen flow rate, it is necessary to use real flow calibration for the flow meter calibration.
Hydrogen flow meter—Precession Vortex Gas Flowmeter
Precession vortex flowmeter is a new type of gas flowmeter. It can be used for the measurement of natural gas, propane, air, nitrogen and other gases.
Precession Vortex Gas Flowmeter, like vortex flowmeter, is a velocity flowmeter. The cost performance of the intelligent precession vortex flowmeter is higher than vortex flowmeter. The intelligent precession vortex flowmeter can only measure gas. Precession Vortex Gas Flowmeter can be made into an integrated temperature and pressure compensation. And can measure various gases. Such as compressed air, oxygen, biogas, natural gas, coal gas, etc.
Precession Vortex Gas Flowmeter reference price: DN50, USD 600.00/pc.
More Featured gas flow meters
A gas flow meter is an instrument for measuring the flow of gas. Installed in the pipeline to record the amount of gas flowing through.
Can measure blast furnace gas, coke oven gas, coal gas, air, nitrogen, acetylene, phosgene, hydrogen, natural gas, nitrogen, liquefied petroleum gas, hydrogen peroxide, flue gas, methane, butane, chlorine, gas, biogas, carbon dioxide , Oxygen, compressed air, argon, toluene, benzene, xylene, hydrogen sulfide, sulfur dioxide, ammonia, etc.
There are mainly the following types of gas flow meters:
- Vortex flowmeter:
It is mainly used for flow measurement of industrial pipeline medium fluid, such as gas, liquid, vapor and other media. Its characteristics are small pressure loss, large measuring range and high accuracy.
When measuring the volume flow under working conditions, it is hardly affected by the fluid density, pressure, temperature, viscosity and other parameters. There are no movable mechanical parts, so the reliability is high and the maintenance is small. The instrument parameters can be stable for a long time.
- Gas turbine flowmeter:
The gas turbine flowmeter is a new generation of high-precision and high-reliability gas precision metering instrument developed by itself by absorbing the advanced technology of domestic and foreign flow meters, optimized design, and integrated theories of gas mechanics, fluid mechanics, and electromagnetics.
With excellent low and high pressure metering performance, multiple signal output methods and low sensitivity to fluid disturbances, it is widely applicable to the metering of natural gas, coal-based gas, liquefied gas, light hydrocarbon gas and other gases.
- Integrated orifice flowmeter:
It is a high-range ratio differential pressure flow device that is composed of a standard orifice plate and a multi-parameter differential pressure transmitter (or a differential pressure transmitter, a temperature transmitter, and a pressure transmitter).
It can measure the flow of gas, steam, liquid and natural gas, and is widely used in process control and measurement in the fields of petroleum, chemical industry, metallurgy, electric power, heating, and water supply.
- V cone flowmeter:
V-cone flowmeter is widely used in petrochemical, natural gas and other fields due to its simple structure, firmness, easy duplication, strong versatility, and low price.
This product overcomes the standard orifice plate, venturi tube, nozzle and other throttling devices, such as easy to wear, large pressure loss, small range (range ratio), high on-site installation conditions, and excessively long straight pipe sections. It can accurately measure the flow rate of various fluids in a wide range of Reynolds number.
Why should you never measure hydrogen and oxygen together with a flow meter?
Because hydrogen is a flammable gas. Oxygen is a necessary condition for combustion. Measure if oxygen and hydrogen are mixed. It is easy to explode.
Therefore, when we choose a hydrogen flowmeter, we must remember to choose an explosion-proof flowmeter!
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Sino-Inst offer over 5 Hydrogen flow meters with Best Price.
A wide variety of Hydrogen flow meters options are available to you, such as free samples, paid samples.
Sino-Inst is Hydrogen flow meters suppliers, located in China. Mass Flow Meters products are most popular in North America, Mid East, and Eastern Europe. The United States, and India, which export 99%, 1%, and 1% of Hydrogen flow meters respectively.
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