Hi Karen Ann
here is how others solved the issue..... Their elevator has been broken
for over 6 months.
http://www.selectscience.net/editorial-articles/how-i-saved-our-nmr-from-hurricane-mara-devastation/?&classID=2&techID=30&artID=45930
Clemens
On 4/6/2018 3:25 PM, Karen Ann Smith wrote:
> AMMRLers:
>
> Do you ever think about what you would do if the only elevator in your
> building was broken for a month? Well, I have thought about it, and
> now have an opportunity to put those thoughts into action.
>
> Our facility is in the basement, with access only via stairs or an
> elevator. Our 40 year old elevator died, there are no repair parts
> available, and bespoke parts will take several weeks to fabricate.
>
> The first week, we bumped a 180 liter dewar down the stairs. This
> required several large, strong people, and they didn't want to do it
> again. Our safety officer rejected the idea of rubber hose going down
> the stairs.
>
> Our solution was to purchase a 30 foot long cryoline, and run it
> through a hole in the facility ceiling. (For reasons unknown, there is
> a hole covered by a hatch in the ceiling/floor of a research lab. The
> hole is directly under a safety shower, which, fortunately, has never
> been used.)
>
> We were told that the line was non-magnetic. We verified this before
> running it across the lab.
>
> The first time we used it, the line took about 30 minutes to start
> delivering liquid. We then stored it overnight in a -80 freezer. Now
> it only takes about 5-10 minutes to cool down, and once cooled down,
> the line transfers pretty efficiently. We estimate that we are only
> losing 20% or so above normal. We run liquid turning to gas nitrogen
> through the line until liquid comes out. Then we stop the transfer,
> insert the line into the magnet or dewar, and turn it back on. This
> way, we are not blowing liquid out of the magnets. This also clears
> out the line.
>
> Pictures, or it didn't happen:
> http://nmr.unm.edu/nitrogen.html
>
>
> kas
--
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Clemens Anklin Ph.D. Vice President
Bruker BioSpin NMR Applications & Training
15 Fortune Drive Phone:978 667 9580 ext 5144
Billerica MA 01821 skype_ID: canklin
web: www.bruker.com e-mail: clemens.anklin_at_bruker.com
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Received on Mon Apr 09 2018 - 03:41:06 MST