The most common type of boiler in the NCF is
the scotch marine. Scotch marine is a generic
term that identifies a boiler with a furnace, which
forms an integral part of the boiler assembly. This
configuration allows for compact construction
requiring only a small space for the capacity
produced. Scotch marine boilers are package units
consisting of a pressure vessel, burner, controls,
draft fan, and other components assembled into a
fully factory fire-tested unit. This provides an
engineered unit equipped for quick installation and
connection to services. As a first class petty
officer, you will supervise personnel in the
installation, operation, and maintenance of boilers.
As a chief petty officer, you will be responsible for
the general management of these plants. This
chapter provides insight into many skills that you
m u s t d e v e l o p t o b e a p r o f i c i e n t
supervisor/manager of a boiler plant.
INSTALLATION OF BOILERS
When you are preparing to install a boiler,
consider three basic factors-site location,
accessories, and fittings. This section discusses
each of these items. Proper installation of a boiler
helps to ensure succesful operation. Always refer
to the manufacturers manuals, and follow your
prints and specifications closely. By being
thorough in your planning and execution of plans,
you can prevent many future problems for
operators and maintenance personnel.
Give careful consideration to site location for
the construction of a boiler plant. Primarily, the
cost in materials, manpower, and equipment is the
most important factor effecting this selection.
These costs can usually be reduced by locating the
plant site as close as possible to the largest load
demand facility, such as a galley or laundry.
When selecting a site for boiler installation,
you must consider the availability of the following:
. Natural site drainage
Attempt to avoid high pedestrian and vehicle
traffic areas for safety reasons. Another item to
consider is noise level. Noise pollution may cause
discomfort for personnel, especially if the site
being considered is adjacent to a berthing area.
These are factors you must consider when you
become involved in selecting a boiler plant site.
Each situation may include all, part, or more than
these factors. You must look at each installation
and evaluate the needs of that job.
Constructing the foundation or platform a
boiler sits on requires skilled engineering and
development. Follow the manufacturers
specifications. Boilers may vary in wet weight
from 1.5 tons to more than 20 tons. A substantial