Is it necessary to equip a nitrogen storage tank in a utility nitrogen generation system?
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For the company’s project’s utility needs, we need to purchase nitrogen generators. Could those of you who are experts recommend some good manufacturers? Our demand is around 1000 Nm3/h; initially, we are planning to use two units of 500 m3/h each. I would appreciate any suggestions you might have. At the same time, I wonder if it is still necessary to install a nitrogen storage tank when a nitrogen buffer tank is already in use? If necessary, how large should it generally be? That is, how many hours should it be available to meet production needs? Thank you all.
A nitrogen buffer tank is required for nitrogen production equipment. The nitrogen storage tank is designed based on the requirements for nitrogen in the process; its specific size should be determined according to the amount of gas needed and the pressure requirements.
Hello, friend on the 2nd floor. Our gas consumption is around 900 Nm3/h at a pressure of 0.7 MPa, and the gas is used intermittently. I was wondering if it’s necessary to install a storage tank. Thank you.
I think that a nitrogen buffer tank is sufficient, and there’s no need for a nitrogen storage tank; given your low gas consumption, it’s not necessary either.
Friend on the 4th floor, is there a clear limit set for the amount of nitrogen storage tank usage? Thank you.
The storage tank contains nitrogen to deal with emergencies such as power outages and unit damage. When calculating such storage tanks, it is first necessary to roughly estimate the time required for emergency response and the amount of nitrogen needed in the event of a failure. However, for such accidents involving nitrogen, liquid nitrogen systems are generally used; their advantage lies in stable pressure, compact size, and ease of storage and management. There is a company in China called Dàyáng Rìsuān that seems to be involved in this area.
Our company uses three nitrogen generators with a capacity of 500 NM3/H, along with two nitrogen storage tanks of 60 M3 each, to ensure stable nitrogen pressure
Our company has a super-pure nitrogen production unit with a capacity of 300 NM3/H, equipped with 2 nitrogen storage tanks of 150 M3 each; occasionally, there are issues with unstable nitrogen pressure and insufficient amounts of nitrogen available； In my personal opinion, a nitrogen buffer tank is not necessary, but a nitrogen storage tank should be installed. The specific capacity of this storage tank should be determined based on actual usage levels, the importance of nitrogen (in terms of safety issues such as explosion prevention), and the duration of shutdowns for maintenance.
Additionally, during the maintenance of our nitrogen production equipment, we also purchase liquid nitrogen from industrial gas companies to ensure the safety of the equipment! Because factories are places prone to fire and explosion.
If it is necessary to maintain a stable nitrogen pressure during gas usage, it is recommended to install a buffer tank; if no pressure requirements exist, then there is no need for such a tank, thereby saving on investment. Nitrogen storage tanks are generally used to hold liquid nitrogen for emergency situations. If there is no air separation unit, then liquid nitrogen must be purchased.
Our company’s gas consumption is 1,000 cubic meters per hour; therefore, we have installed a nitrogen storage tank with a capacity of 2,000 cubic meters. This tank can meet the nitrogen demand for 20–30 minutes in the event of a power outage. We use this nitrogen storage tank to avoid the need to operate valves in case of sudden power failures, thereby **improving safety levels**