paraffin wax deposition and fouling

— 53
capable of Coat ining the entire contents of the circulation loon,
in cane the tank onrang a leaks
A
t:rmostat was fitted in the holc.ing tank, activating the
zalety system if excessive temneratures were reached, indicaaLng a
The return rires entering the holding tank ‘iere carried do:rn
to within a few cm
static electricity
of the tank floor, minimizing the rroduc;ion of
areventing excessive mixing of the exsernentai
solution.
An
electric eye level detector was fitted to the level indicator
o: one ncatia zanc, i a s:oon_age occurree, Inc soactaon ev in
one tan won_s eror, pass one eectrtc eye and act:vate tne Sãt oy
system.
All olnework was nressure tested. The entire annaratus insie
the building was rut inside a mild steel barrier, carahe o±
contain
ing the entire contents 0f the circulation iOO
2 in case of eakage
A
tnermistor was instalThd at the top of tne exrerimenton r:g
to detect any undue rise in temrerature inside the building. :t
would activate the safety system.
An orifice was installed on the rump discharge side and
connected to a mercury electrode manometer.
n the event of a
blockage or nuar failure, the lack of differential rressure across
tae ora:ace wons activate the safety systems
tne entire arraraons was care:uLy eartacS to prevent one
formation o static electricity and spark ignition.
The
safety svste: was essentially a groan of relays cconDcton
in seraes on one was rtcrec. ouD on ;ne event oc a lire, :a__
tank level, blockage or man failure, in would stop the nuar
2O seconds ater, close the soenoid valve or. the tuna discharge
side.