Improvements in Feed Water Heaters.
Year: 1895

page_text: Date of Application, 30th July, 1895-Accepted, 31st Aug., 1895
COMPLETE SPECIFICATION.
Improvements in Feed Water Heaters.
I, HENRY GRIFFITH KEASBEY, Manufacturer, of Ambler, Montgomery
County, Pennsylvania, United States of America, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The invention relates to a novel construction of feed water heater, and consists
of a plurality of separable sections or chambers, which are readily assembled
together, and adapted to be placed in an upright position in a smoke stack, or
adjacent to a boiler or furnace, the hot gases and products of combustion which
have been first utilized in the boiler forming the only heating medium for said
heater, and the water contained therein being effectively heated by being conducted
successively from that portion of the heater where the temperature is lowest, to the
hottest portion thereof, and being eventually conducted therefrom to a boiler or
other point, provision being made for obtaining ready access to the interior of the
chambers and flues, all as will be hereinafter set forth.
The accompanying drawing represents a vertical sectional view of a feed water
embodying my invention, in which
A designates the feed water heater, which is composed of the hollow
chambers B, C, D, and E, which are superimposed upon each other, and in the
present instance are four in number, although it is evident that the number of
these chambers may be increased or diminished according to requirements.
As the above chambers are all substantially alike, a description of one will
suffice for all, reference being had to the upper chamber E.
The said chamber is composed of a cylindrical or other shaped shell F, to each
end of which is suitably attached the tube sheets G and H in which are expanded
or otherwise secured the flues J.
Each chamber has attached to its shell at a point near the junction of the latter
and the tube sheets, suitable ears, lugs or angle irons K, whose abutting portions
are held together by bolts or similar devices when the chambers are assembled and
placed in juxtaposition to each other.
It will be obvious that other means than those shown may be used for holding
the chambers in position, e.g. a rod or bolt L, extending through each section may
be employed, the ends thereof being engaged by nuts G, keys or other devices.
M designates the inlet for the feed water which is located at the lower portion of
the upper chamber, near the lower tube sheet of the same.
N designates the outlet pipe connecting the two upper chambers, and it will be
noticed that said pipe has one end connected to the upper portion of said upper
chamber, while its other end is connected to the lower portion of the adjacent
chamber D. In like manner the upper portion of the chamber D is connected by
the pipe P to the lower portion of the chamber C, and the upper portion of the
latter is connected by the pipe Q with the lower portion of the chamber B, while
the bot water is conducted by the pipe R from the upper portion of the chamber B
to a boiler or elsewhere. Each of the chambers B, C, D, and E is provided with
a blow-off pipe S, which is attached to the lower portion thereof, where the
movement of the water is the least, and consequently the largest amount of
sediment will be deposited. The several chambers may be further provided with
man-holes T, and safety valves may also be provided if desired.

page_text: U designates a hood or casing which is attached to the upper chamber E, into
which the hot gases and products of combustion are discharged, after having first
imparted their heat to the contents of the chambers below, said gases eventually
escaping from the hood through the outlet V.
W designates an inlet flue for the hot gases and products of combustion, the
latter being conducted thereinto after they have been first utilized in a boiler.
The said hood U may be provided with a door or doors X, which admit of
access to the smoke flues J for the purpose of removing ashes, soot and the like
therefrom whenever desired, it being remembered that all the flues J are in
substantial alignment with each other.
The operation is as follows; The several chambers having been assembled in the
manner shown, it being noticed that the pipes N and Q are preferably diametrically
opposite to each other, in order that the water may be obliged to traverse as much
of the heating surface as possible, while passing through each chamber. The feed
water having been introduced through the pipe M rises as it becomes heated in its
contact with the hot surfaces, and is conducted by the pipe N to the lower portion
of the latter by the pipe P to the lower portion of the chamber C, and thence to
the chamber 13, and finally by means of the outlet pipe R to the boiler or other
desired point, it being noticed that since said water enters the heater at the point
where the temperature is lowest and is discharged therefrom at the point where
the temperature is highest, the heating will be gradual and effective, and only the
hottest water will be withdrawn therefrom.
By making the parts in sections as shown, the heater can be readily taken apart
for transportation, and in case of accident to one of the sections or chambers, the
same can be readily removed and repaired, or a new one inserted in position as is
evident.
Each chamber can be readily blown-off, and access had to the interior by means
of the man-holes.
The heater may be placed in a smoke stack, or may be placed in an upright
position at the rear of a boiler or furnace.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, 1 declare that what I
claim is :-
A feed water heater consisting of a plurality of separable sections, provided with
fire tubes superimposed upon each other, means for securing said sections in
position, connections between said sections extending from the upper portion of one
section to the lower portion of the adjacent section, and from the upper portion of
the latter to the lower portion of the next section, the feed water inlet being in the
lower portion of the upper chamber, and the hot water outlet leading from the
upper portion of the lowest chamber, in combination with a suitable inlet for
the products of combustion attached to said lower section, and a hood or casing
having an outlet therefrom, attached to the upper section, whereby the water is
rapidly and effectively heated, being introduced in the coolest portion of the heater
and discharged from the hottest portion thereof, substantially as described.
Dated this 30th day of July 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.