An Improved Combined Feed Water Heater and Purifier.
Year: 1889

page_text: An Improved Combined Feed Water Heater and Purifier.
I, JOHN DENNIS SULLIVAN, a Marine Engineer, of New Orleans in the County of
Orleans, and State of Louisiana, United States of America, do hereby declare the
nature of my invention for AN IMPROVED COMBINED FEED WATER HEATER AND
PURIFIER and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
My invention has for its object, primarily the purification of the feed-water of
boilers by the heating and filtration of the sanie, within the boiler, whereby the silt,
lime, and other impurities are removed therefrom, and whereby incrustation or scaling
of the boiler is prevented, and this I do by placing within the steam dome of the
boiler a filtering chamber, into which the feed-water is conducted by a pipe in the
steam dome and by then delivering the filtered water into a sediment pan located
within the boiler, and from which pan the water escapes by overflow into the boiler.
The present invention is an improvement upon the construction shown in the prior
United States patent granted to myself and G. G. Minor on September 22, 1885,
No 326,580.
The novelty of my invention will be herein set forth and specifically pointed out in
the claims.
The accompanying drawing is a side elevation of a boiler, partly in section, con-
taining my improved heater and filter, also shown in section.
A represents a boiler, of usual or any suitable construction, provided with a steam
dome, B. Entering the top of this dome is the feed-water pipe C, as shown, which
passes down into the lower end of a vertical cylinder D, which is divided into three
compartments by means of perforated diaphragins a, between which are contained the
filtering materials, consisting of charcoal, broken brick, or other suitable material.
This, as shown, divides the cylinder or filtering chamber into three compartments, into
the lower open one of which the feed-water enters, and then passes up through the
filtering material into the upper open compartment whence it flows through a pipe E,
down into an open sediment pan F, suitably supported within the steam space near the
top of the boiler.
G is a' blow-off pipe extending from the lower open compartment of the chamber D.

page_text: and is provided with a valve b, H is a similar blow-off pipe entering the pan F. This
pipe is likewise provided with a valve, c From this construction it will be seen that
the feed-water is heated in passing through the pipe C before it enters the lower
compartiment of the filtering chamber. All impurities in solution are precipitated,
and in suspension are arrested by the filtering material. When desired pipe (may
be passed through a coil placed in dome B. As an additional safe-guard, should any
impurities escape through the filtering material, they would pass with the water
through the pipe E into and be caught by the pan F, and there settle.
feed-water overflows from the pan F into the boiler almost if not quite at a boiling
temperature.
The
To cleanse the filteung material and to remove the sediment collected in the
lower compartment of the chamber D, it is only necessary to open the valve b,
whereupon steam enters the pipe E, passes down through the filtering material,
thereby cleansing the same of inipurities, and blows out the collected sediment through
the pipe
G.
C,
To remove the sediment from the pan F, it is only necessary to open the valve
whereupon the pressure of steam forces the collected sediment out through the
Pipe H.
It is obvious that the sediment pan F may be dispensed with, if desired, and the
filtered water fed to the boiler directly from the upper part of the filtering chamber D,
though I find the water is more thoroughly purified by the use of the pan F. My
device may be placed on the outside of an upright boiler and will render effective
service. In this manner I provide a very simple and efficient feed-water heater and
cleaner.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. The combination, with a boiler provided with a steam-dome, of a feed-water
pipe entering said dome, and its lower end entering the lower part of a filtering-,
chamber located mainly within said dome, a discharge-pipe opening from the upper
part of said filtering-chamber, and a sediment-pan supported within the steam-space
of the boiler, into which sediment-pan said discharge-pipe delivers the feed-water,
substantially as described, whereby the water is heated and purified before entering
the boiler.
2. The combination, with a boiler provided with a steam-dome, of a feed-water
pipe entering said dome, and its lower end entering the lower part of a filtering-
chamber located mainly within said dome, a discharge-pipe opening from the upper
part of said filtering-chamber, a-sediment-pan supported within the steam-space of the
boiler, into which sediment-pan said discharge-pipe delivers the feed-water, and a blow-
off pipe opening from the bottom of the filtering-chamber, substantially as and for the
purpose described.
3. The combination, with a boiler provided with a steam-dome, of a feed-water
pipe entering said dome, and its lower end entering the lower part of a filtering-
chamber located within said dome, a discharge-pipe opening from the upper part of
said filtering-chamber, a sediment-pan supported within the steam-space of the boiler,
into which sediment-pan said discharge-pipe delivers the feed-water, and a blow-off
pipe opening from the bottom of said sediment-pan, substantially as and for the
purpose described.
4. The combination, with a boiler provided with a steam-dome. of a feed-water
pipe entering said dome, and its lower end entering the lower part of a filtering-
chamber located within said dome, a discharge-pipe opening from the upper part
of said filtering-chamber, a sediment-pan supported within the steam-space of the
boiler, into which sediment-pan said discharge-pipe delivers the feed-water, a blow-
off pipe opening from the bottom of the filtering-chamber, and a blow-off pipe
opening from the bottom of the sediment-pan, substantially as and for the purpose
described.

page_text: 5 The combination, with a boiler A, provided with the steam-dome B, of the feed-
water pipe C, entering said dome, the vertical cylinder D, located mainly within the
steam-dome and divided by means of perforated diaphragms a into three compart-
ments, the middle one of which is filled with suitable filtering material, and into
the lower one of which the lower end of the feed-water pipe Centers and
discharges the feed-water, the discharge-pipe E, opening from the upper compartment
of the cylinder D, and the sediment-pan F, supported in the steam-space in the
upper part of the boiler and receiving the filtered feed-water from the upper
compartment of the cylinder D through the discharge-pipe E, from which sediment-
pan the purified water overflows into the boiler A, substantially as and for the purpose
specified.
6 The combination, with the boiler A, provided with a steam dome B, of the feed-
water pipe C, entering said dome, the vertical cylinder D, located mainly within the
steam-dome and divided by means of perforated diaphragms a into three compart-
ments, the middle one of which is filled with suitable filtering material, and into the
lower one of which the lower end of the feed-water pipe Centers and discharges
the feed-water, the discharge pipe E, opening from the upper compartment of the
cylinder D, the sediment-pan F, supported in the steam-space in the upper part of the
boiler and receiving the filtered feed-water from the upper compartment of the
cylinder D through the discharge-pipe E, from which sediment-pan the purified water
overflows into the boiler A, and the blow-off pipe G, opening from the lower com-
partment of the cylinder D, and provided with a valve, b, upon opening which the
sediment in the lower compartment of the cylinder D is blown out through said blow-
off pipe G, substantially as and for the purpose specified.
7. The combination, with the boiler A, provided with the steam-dome B, of the feed-
water pipe C, entering said dome, the vertical cylinder D, located mainly within the
steam-dome and divided by means of perforated diaphragms a into three compart-
ments, the middle one of which is filled with suitable filtering material, and into the
lower one of which the lower end of the feed-water pipe Centers and discharges the
feed-water, the discharge-pipe E, opening from the upper compartment of the
cylinder D, the sediment-pan F, supported in the steam-space in the upper part of the
boiler and receiving the filtered feed-water from the upper compartiment of the
cylinder D through the discharge-pipe E, from which sediment-pan the purified water
over flows into the boiler A, and the blow-off pipe H, connected with the sediment-
pan F, and having its inner end extending along the bottom of said pan, and provided
with the valve c, upon opening which the sediment in the bottom of the pan F
15 blown out through said blow-off pipe H, substantially as and for the purpose
specified
8. The combination, with the boiler A, provided with the steam-done B, of the
feed-water pipe C, entering said dome, the vertical cylinder D, located mainly within
the steam-dome and divided by means of perforated diaphragms a into three compart-
ments, the middle one of which is filled with suitable filtering material, and into the
lower one of which the lower end of the feed-water pipe Centers and discharges
the feed-water, the discharge-pape E, opening from the upper compartment of the
cylinder D, the sediment-pan supported in the steam-space in the upper part
of the boiler and receiving the filtered feed-water from the upper compartment of
the cylinder D through the discharge-pipe E, from which sediment-pan the purified
water overflows into the boiler A, the blow-off pipe G, opening from the lower
compartment of the cylinder D, and provided with a valve, b, upon opening which
the sediment in the lower compartment of the cylinder D is blown out through
said blow-off pipe G, and the blow-off pipe H, connected with the sediment-pan F,
and provided with the valve c upon opening which the sediment in the bottom
of the pan F is blown out through said blow-off pipe H, substantially as and for the
purpose specified.
9. The combination, with a boiler provided with a steam-dome, of a feed-water pipe
entering said dome, and its lower end entering the lower part of a filtering chamber

page_text: located mainly within said dome, and the discharge-pipe E, substantially as and for
the purpose specified.
10. The combination, with a boiler provided with a steam-dome, of a feed-water
pipe entering said dome, and its lower end entering the lower part of a filtering-
chamber located mainly within sud dome, the discharge-pipe, and a blow-off pipe
leading from the lower part of said filtering chamber, substantially as and for the
purpose specified.
11. The combination, with the boiler A, provided with the steam-dome B, of the
feed-water pipe C, entering said dome, the filtering-chamber D, located mainly within
the steam-dome, and divided by means of perforated diaphragms a into three com-
partments, the middle one of which is filled with suitable filtering material, and into
the lower one of which the lower end of the feed-water pipe Centers and discharges
the feed-water, and the discharge-pipe E, substantially as and for the purpose
specified.
12. The combination, with the boiler A, provided with the steam-dome B, of the
feed-water pipe C, entering said dome, the filtering chamber D, located mainly within
the steam-dome and divided by means of perforated diaphragms a into three com-
partments, the middle one of which is filled with suitable filtering material, and into
the lower one of which the lower end of the feed-water pipe Centers and discharges
the feed-water, and the blow-off pipe G, leading from the lower compartment of said
filtering chamber D, and provided with a valve, b, upon opening which the sediment
in the lower compartment of the filtering-chamber D is blown out through said
blow-off pipe G, and the discharge-pipe E, substantially as and for the purpose
specified.
1000
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.