Improvements in Feed Water Heaters, Economizers, and Purifiers.
Year: 1894

page_text: Date of Application, 4th Sept., 1894-Accepted, 13th Oct., 1894
COMPLETE SPECIFICATION.
Improvements in Feed Water Heaters, Economizers, and Purifiers.
I, HENRY GRIFFITH KEASBEY, of Ambler, in the County of Montgomery,
State of Pennsylvania, United States of America, Physician, 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 feed water heater, economizer and purifier, which is
preferably constructed separately from the boiler, but is so arranged relative
thereto that the hot gases and products of combustion constitute the only heating
medium for the heater, said gases being conducted directly to the heater through a
suitable flue, after having been preferably first utilized in the boiler, and the said
heater being formed of a shell with partitions therein, and pipes adapted to direct
the water from the top of one chamber to the bottom of another chamber, and
subjecting it to the action of gas or hot air flues, whereby it is effectively heated,
the heating being gradual, as the water enters the apparatus where the temperature
is the lowest, and leaves the same where the temperature is the highest, the
construction and operation being hereinafter fully set forth.
In the accompanying drawing
Figure 1 represents a partial longitudinal section and partial side elevation of a
feed water heater and the like embodying my invention, and
Figure 2 represents an end view thereof."
Similar letters of reference indicate corresponding parts in both the figures.
A designates a shell having flues B therein, said shell being suitably connected
with a steam boiler, whereby the gases or products of combustion thereof enter
said flues, as indicated by the arrows 1.
Within the shell A are partitions or diaphragms C, C, C³, which divide the same
into chambers D, D', D', D³ to which partitions are connected the pipes E, E¹, E³,
which are within the shell and form communications between the top of one
chamber and the bottom of the adjacent one.
At the end of the shell, opposite to the boiler, is a chamber F, which forms a
communication between the flues B and smoke stack G for directing the gases,
from the flues into said stack.
Connected with the chamber D is a water supply pipe Ĥ and with the
chamber D³ is a water discharge pipe J. The chambers have connected with them
the pipes K for cleansing, emptying and general blow-off purposes.
The shell is also provided with man or hand-holes, and closing plates therefor,
and a safety valve for evident purposes.
The operation is as follows:
Water is directed into the chamber D, through the pipe H, and the same rises
in said chamber until it reaches the opening at the top of the partition C, leading
to the pipe E, whereby it is directed by said pipe to the bottom of the chambers D¹,
where it is discharged, it then rising in said chamber and reaching the opening in
the partition C and entering the pipe E', whereby it is discharged at the bottom
of the chamber D2, and so the water continues its passage until it finally reaches
the pipe J, by which it is directed into the boiler or other place of service, it being
noticed that the water takes a passage through the apparatus in somewhat zig-zag
course, so that it is subjected to the heating action of the several flues as it flows
past the same, it being also seen that the water is gradually heated, it entering
the apparatus where the temperature is the lowest, and discharging where the
temperature is the highest, and thus the heating of the water is effectively
accomplished.

page_text: The sediment may be removed through the pipes K, the latter also providing
means for cleaning the shell and exterior of the flues, and general blow-off
purposes.
The chamber F is provided with doors L, which permit access to the said
chamber, and the interior of the flues B for purposes of cleansing and repairs.
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 shell with partitions therein forming separate chambers, pipes connected
with said partitions forming a zig-zag passage for the water through the shell, and
flues in said chambers with which the water contacts in its zig-zag course, said
shell being connected with the flue of a steam boiler and having its flues adapted
to receive the gases or products of combustion therefrom, said parts being com-
bined substantially as described, forming au improvement in feed water heaters,
economizers and purifiers, as set forth.
2nd. A feed water heater consisting of a shell having partitions therein forming
water chambers, flues passing therethrough, one end of said flues being adapted to
be in communication with the flue of a steam boiler, and to receive the hot gases
or products of combustion therefrom, the other end terminating in a chamber
provided with a stack, pipes within said shell forming a communication between
the top of the water chamber and the bottom of an adjacent water chamber, a
water inlet pipe leading into the bottom of the water chamber farthest from the
inlet end of the products of combustion, and a discharge pipe leading from the top
of the water chainber nearest the inlet for said products of combustion, said parts
being combined substantially as described.
3rd. A shell with separate chambers therein, flues in said chambers, and pipes
connected with the partitions of said chambers, forming a passage extending
alternately from bottom to top and top to bottom through the boiler, in com-
bination with the chamber F at the outlet end of the flues, said chamber having a
door and being connected with a stack, the inlet chamber of said shell being
adapted to receive products of combustion alone, substantially as described.
Dated this 4th day of September 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.; Agents for the Applicant.