Chapter 3 — Waterside Care and Requirements
3-10 Part No. 750-184
may begin, the burner should be ready for firing. The operator must
be familiar with the procedure outlined under burner operation.
Use of a suitable face mask, goggles, rubber gloves, and protective
garments must be worn when handling or mixing caustic chemicals.
Do not permit the dry material or the concentrated solution to come
in contact with skin or clothing. Failure to follow these instructions
could result in serious personal injury or death.
Your local Cleaver-Brooks authorized representative will be able to
recommend a cleaning or boil-out procedure. In the event such
service is unavailable or is yet unscheduled, the following
information may be of assistance.
There are several chemicals suitable for boil-out. One combination
often used is soda ash (sodium carbonate) and caustic soda
(sodium hydroxide) at the rate of 3 to 5 pounds each per 1,000
pounds of water, along with a small amount of laundry detergent
added as a wetting agent.
The suggested general procedure for cleaning a boiler is as follows:
(1) Refer to Table 3-2 to determine water capacity. Have sufficient
cleaning material on hand to complete the job.
(2) When dissolving chemicals, the following procedure is
suggested. Warm water should be put into a suitable container.
Slowly introduce the dry chemical into the water, stirring it at all
times until the chemical is completely dissolved. Add the chemical
slowly and in small amounts to prevent excessive heat and
turbulence.
(3) An over-flow pipe should be attached to one of the top boiler
openings and routed to a safe point of discharge. A relief or safety
valve tapping is usually used.
(4) Water relief valves and steam safety valves must be removed
before adding the boil-out solution so that neither it nor the grease
which it may carry will contaminate the valves. Use care in
removing and reinstalling the valves.
Table 3-2
Water Capacity and Weights
(5) All valves in the piping leading to or from the system must be
closed to prevent the cleaning solution from getting into the system.
GENERATOR
SIZES
CB & CB-LE
WATER – GALLONS WATER – WEIGHT
NORMAL FLOODED NORMAL FLOODED
125 HP 689 920 5750 7670
150 HP 869 1115 7250 9295
200 HP 1034 1335 8625 11130
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