Evoqua Wallace&Tiernan 50-200 Series, Руководство пользователя

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50-200 EVAPORATOR FOR CHLORINE
WT.050.200.001.UA.IM.0814
45
EVOQUA W3T98237
brown ferric chloride and the lower portion will contain a mixture of ferric
chloride and other residue. This mixture may be solid, liquid, or of some
intermediate consistency.
h. Disconnect the ammonia union (19) at the bottom chlorine inlet (47).
i. Using the flange W2T18194 with nipple W2T16303, from the W3T109990
drying kit, run a one-inch hose line from the bottom chlorine inlet connec-
tion to a drain, as shown in Dwg. 50.200.150.010.
j. Loosen any residual buildup from the internal walls of the cylinder.
k. Remove riser pipe W2T19060 from the bottom chlorine inlet and flush the
cylinder with water at a minimum of flow of 5 GPM. Continue to flush until
the discharge water is clean.
l. Inspect the interior surface for pitting and corrosion. If pitting exceeds
0.125-inch deep, if deep seated corrosion is apparent, or if cylinder seems to
be of questionable condition, either proceed with the five-year inspection
procedure (paragraph 4.13) or replace the cylinder and the appropriate
components.
m. Thoroughly dry all internal surfaces and items within the cylinder, as any
residual moisture will accelerate corrosion once combined with chlorine.
WARNING: ANY MOISTURE, INCLUDING ATMOSPHERIC, IS HIGHLY
CORROSIVE WHEN COMBINED WITH CHLORINE. TO AVOID SEVERE
PER SONAL INJURY AND EQUIPMENT DAMAGE FROM EXTREME COR-
ROSION, AND POSSIBLE FAILURE OF THE CYLINDER, IT MUST BE AB-
SOLUTELY DRY AFTER CLEANING IS COMPLETED.
n. Unbolt (23) and remove the bottom chlorine inlet pipe and flange (47).
Remove as much water as possible from the bottom of the cylinder with
a rag or sponge to reduce drying time. Dry the bottom chlorine inlet pipe
(47) thoroughly by baking or other means.
o. After the cylinder and other parts have been dried thoroughly, replace the
riser pipe and the cylinder flange cover plate using a new gasket W2T18796.
Tighten the bolts uniformly to 270 ft lb.
NOTE: When replacing the cylinder flange cover plate, it is necessary to
observe the orientation of the inlet and outlet as stamped on the top of
the flange and install accordingly.
WARNING: IF USER OUTLET PIPING IS CONNECTED TO THE EVAPORA TOR
INLET PIPE, LIQUID CHLORINE WILL DISCHARGE FROM THE EVAPORA-
TOR, CAUSING EQUIPMENT DAMAGE AND POSSIBLE SEVERE PERSONAL
INJURY. THEREFORE, ENSURE THAT USER PIPING IS CONNECTED TO THE
EVAPORATOR OUTLET PIPE.
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