Hi all,
I would like to get some advise and help on this problem:
Our ultra-high vacuum vessel requires venting/purging (>15 m^3 volume) and I was charged the assignment to deliver dry gas for this process.
I did sized a compressed clean dry air system, dew point to be -100F (max I can go), with (After acfm and purge loss) approx. 430 scfm so the vaccum can be vented approx in 30-40 minutes, with water content about 1-2 ppm, the vaccum group wasn't happy at all and I was told water shall be <100 ppb at the worst...
Since I am also in process in designing a LN2 delivery system to the facility and I am told to find out a way to "boil-off" LN2 and "suck" that gasoues N2 out and deliver to the vacuum system. Sorry for being so vague. I really don't know where and how to start.... I am a bit lost and any pointers and suggestions to start would be grateful!!!
I also have questions on the "dryness" of the N2 gas boiled off from LN2, does anyone know how much water is in it? (ppm or ppb) I just don't think this N2 gas would be any dryer than say 1ppm... please help!! or please let me know if more information is required!
I would like to get some advise and help on this problem:
Our ultra-high vacuum vessel requires venting/purging (>15 m^3 volume) and I was charged the assignment to deliver dry gas for this process.
I did sized a compressed clean dry air system, dew point to be -100F (max I can go), with (After acfm and purge loss) approx. 430 scfm so the vaccum can be vented approx in 30-40 minutes, with water content about 1-2 ppm, the vaccum group wasn't happy at all and I was told water shall be <100 ppb at the worst...
Since I am also in process in designing a LN2 delivery system to the facility and I am told to find out a way to "boil-off" LN2 and "suck" that gasoues N2 out and deliver to the vacuum system. Sorry for being so vague. I really don't know where and how to start.... I am a bit lost and any pointers and suggestions to start would be grateful!!!
I also have questions on the "dryness" of the N2 gas boiled off from LN2, does anyone know how much water is in it? (ppm or ppb) I just don't think this N2 gas would be any dryer than say 1ppm... please help!! or please let me know if more information is required!