Nitrogen
Nitrogen
(OP)
For the design of storage and distribution of nitrogen, is it treated as air? anything special to consider?
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Nitrogen
Try the CGA (compressed gas association) for documents.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Nitrogen
http://albanesmolina.wix.com/home
RE: Nitrogen
2. Flanged connections should be minimized and only used when required for component and equipment connections.
3. Threaded connections should only be allowed for instrument connections.
4. The minimum temperature may govern the design of this piping system and require impact testing for certain material and welding procedures.
5. Nitrogen is lethal and any leakage is serious.
RE: Nitrogen
RE: Nitrogen
http://albanesmolina.wix.com/home
RE: Nitrogen
Though welded stainless tube is most common.
Where we have enclosed spaces with inert gas service we install O2 sensors. Ar is the same story.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Nitrogen
RE: Nitrogen
¨It is to be noted, that the use of inert cryogenic liquids such as nitrogen or helium is accompanied by
two primary hazards:
• The fluids are very cold (-196°C for nitrogen and -269°C for helium) and can cause serious cold
burns on contact with the skin.
• Once vaporised both products will generate a large volume of cold inert gas (e.g. 1 litre of liquid
nitrogen will yield 680 litres gaseous product) that will displace ambient air, causing oxygen
deficiency and may accumulate in low points.¨
So plain ventilation may not be enougth and air extractors may be needed?
http://albanesmolina.wix.com/home
RE: Nitrogen
Story.
Small single story manufacturing plant that used a lot of Argon (very dense).
Air compressors in the basement.
Came to work on Monday and had not compressed air. Restarted compressors (from upstairs) and they would trip the overloads in just a couple of minutes.
Process Engineer started to walk down into the basement to check the compressors.
Fortunately he was a scuba diver, he realized that he was starting to breath very rapidly and was aware that he wasn't getting any oxygen.
He got back upstairs before he asphyxiated.
And argon regulator failed, filled the basement with Ar. The Ar is so dense that it displaced all of the air, and overloaded the compressors because it takes more power to compress it.
Result was we put in fans for ventilating the basement and added oxygen sensors in the basement with the display upstairs.
End of story.
In the world of liquid gasses N is the easiest and safest to handle. I hate liquid oxygen, it is the most dangerous and my least favorite.
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
RE: Nitrogen
RE: Nitrogen
http://albanesmolina.wix.com/home