CleaverBrooks CBEX Elite, Эксплуатация и обслуживание

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750-368
CBEX Elite 100-1200 HP
3-1
CHAPTER 3
Waterside Care
3.1 — Overview
The operator should be familiar with this chapter before attempting to place the unit into operation.
Although it is of prime importance, the subject of water supply and treatment cannot adequately be covered in
this manual. For specific information or assistance with your water treatment requirements, contact your Cleaver-
Brooks service and parts representative.
Feedwater equipment should be checked and ready for use. Be sure that all valves, piping, boiler feed pumps,
and receivers are installed in accordance with prevailing codes and practices.
Water requirements for both steam and hot water boilers are essential to boiler life and length of service. It is
vital care be taken in placing the pressure vessel into initial service. The waterside of new boilers and new or
remodeled steam or hot water systems may contain oil, grease or other foreign matter. A method of boiling out
the vessel to remove the accumulations is described later in this chapter.
Boilers require proper water circulation. The system must be operated as intended by its designer in order to
avoid thermal shock or severe, possibly damaging, stresses from occurring to the pressure vessel
.
3.2 — Water Requirements
3.2.1 — Hot Water Boilers (100-800 HP only)
Air Removal
The hot water outlet includes a dip tube which extends 2 to 3 inches into the boiler. Oxygen or air released in the
boiler will collect or be trapped at the top of the boiler shell. The dip tube reduces the possibility of air, which
may be trapped at the top of the shell, from entering into the system.
NOTE: For purposes of this manual, ‘hot water boiler’ covers boilers using water. Glycol solutions have different
operating requirements, circulation rates, temperatures, etc.