Improvements in Feed Water Heaters and the like.
Year: 1895

page_text: Date of Application, 30th July, 1895-Accepted, 7th Sept., 1895
COMPLETE SPECIFICATION.
Improvements in Feed Water Heaters and the like.
1, 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 :-
My invention consists of a novel improvement in feed water heaters, economizers,
and the like, which are constructed separately from the boiler, and adapted to be
so arranged relative thereto, that the hot gases and products of combustion
constitute the only heating medium therefor, said gases being conducted directly
to the heater through a suitable flue, after having been first utilized in the boiler,
said heater being formed of a series of water chambers suitably connected together,
so that a space or combustion chamber may intervene between each, in which
combustion chamber are inclosed the connections between said water chambers, said
connections being adapted to conduct the water from the top of one chamber to the
bottom of an adjacent chamber, in a direction opposite to the course of the products
of combustion, the water entering the heater where the temperature is lowest, and
leaving it where the temperature is highest, whereby the heating is gradually and
effectively accomplished.
It further consists of novel means for isolating one of said water holding
chambers whenever desired.
It further consists of novel details of construction, all as will be hereinafter set
forth.
The accompanying drawing represents a longitudinal sectional view of a feed
water heater, economizer, or the like embodying my invention.
A designates the inclosing shell or casing of the heater, the same having the
end E open to receive the products of combustion or hot gases from any suitable
source, while the other end is closed, forming a smoke box C. to which is attached
the smoke outlet or stack D.
The shell A is preferably cylindrical in shape, and is provided with the
transverse partitions E, F, G, H, J, K, L, and M, which serve as tube sheets for
the flues N, it being noticed that the distance between the partitions F and G,
H and J, K and L is less than the distance between the other partitions E and F,
G and H, Jaud K, L and M whereby combustion chambers P, Q, and R are
formed intermediate the water-holding chambers S, T, U, and V, said combustion
chambers being provided with the doors W, which permit of access to the interior
for the purpose of removing soot, cinders and the like the smoke box C being also
provided with suitable doors W.
X designates a pipe which extends longitudinally of the shell A, the end Y of
which serves as the inlet for the feed water which enters the chamber V through
the nipple Z, which has the valve Z¹ therein.
A¹ designates the outlet from suid chamber V, which has the valve B³ therein,
and is removed from the inlet Z as far as possible, being at the upper portion of
said chamber V, and communicates by means of the pipe B', having the valve B₁
therein, with the lower portion of the chamber U, said pipe B' having also
communication with the pipe X by means of the nipple C', having the valve C*
therein.
In like manner, the upper portion of the chamber U, is connected by the
pipe D', having the valve D therein, with the lower portion of the chamber T,
and the upper portion of the latter has a communication with the lower portion of

page_text: the chamber S, by means of the pipe E', having the valve E³ therein, while
the latter pipe, as well as the pipe D has a valved connection E', D³ with the
pipe X.
B, D, E designate suitable valves interposed between the connections B', D',
and E and the water chambers U, T and S respectively, whereby the flow of
water thereto may be stopped when desired.
F¹ designates the outlet to the boiler. G' designates a blow-off pipe for each of
the water-holding sections which are also provided with the manholes H', the
chamber S being also provided with the safety valve J¹.
It will also be noticed that the connections B', D', and E are each located
within their respective combustion chambers, so that there will be no loss of heat
therefrom.
The operation is as follows: Assuming first that the valves Z', B2, B4, D³, D',
E' and E are open, and the valves in the connections C, D and E³ are closed.
The feed water introduced in the pipe Y enters the chamber V, at the point
furthest from the inlet of the hot gases, and is conducted in zig-zag course by the
pipes B¹ D', and E' to the outlet F, and thence to the boiler, it being noticed that
the heating is gradually and effectively accomplished, since the water enters the
heater where the temperature is lowest, and leaves it at F, where said temperature
is highest, the flow of said water being at all times in a direction opposite to the
course of the products of combustion.
If it should be desired to decrease the capacity of the heater at any time, or to
isolate a portion of the same, it can be readily done by properly manipulating the
valves shown, as is evident, thus the chamber U can be cut out by closing the
valves B, D and E³, and opening the valves Z', B2, C3, D3, D, E and E, and it
will be understood that the other chambers may also be isolated in like manner if
desired, and that the number of water-holding chambers may be increased or
diminished according to requirements, as is evident.
It will also be understood that the pipe X is to be provided with suitable
valves X, intermediate the connections Z, C, D and E³, said valves to be opened
or closed according to requirements, as will be apparent.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1st. A feed water heater consisting of a series of water-holding chambers, having
flues therein, said chambers being arranged in substantially longitudinal alignment,
combustion chambers intermediate said water chambers, and connections between
each of the latter, communicating with the upper and lower portions of the same,
said connections being inclosed within said combustion chambers, said parts being
combined substantially as described.
2nd. A feed water heater, consisting of a series of water holding chambers,
having flues therein and combustion chambers there-between, said chambers being
arranged in substantially longitudinal alignment, valved connections between the
upper and lower portions of the adjacent water chambers, a feed water inlet communi-
cating with the lower portion of one terminal chamber, and a feed water outlet
leading from the upper portion of the other terminal chamber, said parts being
combined substantially as described.
3rd. A feed water heater, consisting of a series of water holding chambers,
having flues therein, and combustion chambers there-between, said chambers being
arranged in substantially longitudinal alignment, valved pipes between the upper
and lower portions of adjacent water chambers, a valved longitudinally-extending
pipe arranged adjacent to said heater, and having a valved communication directly
with one of said chambers, and a valved connection between said longitudinal pipo
and each of said conduits, each of the latter having a valve in its lower portion;
whereby the flow of fluid to the lower portion of any water chamber may be cut-off,
said parts being combined substantially as described.

page_text: 4th. In a feed water heater, a series of water-holding chambers, having
combustion chambers there-between arranged in substantially longitudinal alignment,
flues in said water chambers, an inlet and outlet for the heating medium, the
pipes B', D', E' having therein the valves B³, D³, E³, B, D, and E, the longi-
tudinally-extending pipe X provided with the valves X', and having the valve
connections Z leading to oue water chamber, and the valved connections C, D³
and E' communicating with said pipes B', D', E', said parts being combined
substantially as described.
5th. In a feed water heater, a series of water holding chambers having flues
therein, said chambers being arranged in substantially longitudinal alignment,.
combustion chambers intermediate said water chambers, valved connections between
the upper and lower portious of the adjacent water chambers, and a longitudinally-
extending valved pipe, having a valved communication with each of said connections,
said parts being combined substantially as described.
7th. The water chambers S, T, U, V, the combustion chambers therebetween,
said chambers being arranged in substantially longitudinal alignment, the valved
pipes B', D', and E', the pipe X and the valved connections from the latter,
whereby communication is had with said chambers, the above parts being combined
substantially as described.
8th. A series of water holding chambers having combustion chambers there-
between, said chambers being arranged in substantially longitudinal alignment,
valved pipes connecting the upper and lower portion of said water chambers, a
supply pipe X adjacent the latter, valved connections from said pipe X to said
chambers through the pipes which join said water chambers, said pipes X having
valves X thereon between said connections, substantially as described.
Dated this 30th day of July 1895.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.