Reg. 390 m
|The piping to the water column shall be
carefully noted to see that there is no chance of water
being pocketed in the piping forming the steam connection
to the water column. The steam-pipe should preferably
drain towards to the water column. The water pipe connection
to the water column must drain towards the boiler.
The relative position of the water column to the fire
surfaces of the boiler shall be observed to determine
whether the column is placed in accordance with the Regulations.
The attachments shall be examined to determine their operating
Reg. 390 n
Baffling-Water tube boilers
|In water-tube boilers, it should be noted,
as far as possible, whether or not the proper baffling
is in place. In many types of boilers the absence of baffling
often causes high temperatures on portions of the boiler
structure which are not intended to be exposed to such
temperatures, from which a dangerous condition may result.
The location of combustion arches with respect to tube
surfaces shall be carefully noted. These are sometimes
arranged so as to cause the flame to impinge on a particular
part of a boiler and produces overheating of the material
and consequent danger of the rupture of the part.
Reg. 390 o
Localization of heat
|Localization of heat brought about by improper
or defective burner or stoker installation or operation
creating a blow pipe effect upon the boiler, shall be