Improvements in Feed Water Purifying Apparatus for Steam Boilers.
Year: 1894

page_text: Date of Application, 25th July, 1894"
Complete. Specification. Left; 26th Mar., 1895-Accepted, 4th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Feed Water Purifying Apparatus for Steam
Boilers.
I JULIUS BRUUN of Raadmandsgade 24, Copenhagen in the Kingdom of
Denmark, Machinist, do hereby declare the nature of this invention to be as
follows:-
This apparatus has for its object to remove automatically from feed water for
steam boilers such matters as may produce sediment or incrustation, to prevent
these entering the boilers and to admit only pure water. The apparatus is
applicable where crude or natural water only is used for feeding, and also when
condensed water is used in connection with natural water, for replenishing.
-
The apparatus consists of a container for any suitable chemical solution or
reagent with an outlet and foot valve at its base, a balanced oscillating receiver
consisting of two chambers and revoluble about its pivots which are set in a
suitable frame situated in the upper part of a filtering tank or otherwise
conveniently.
The water to be treated is led direct through a pipe into one of the chambers of
the balanced oscillating receiver, and when this chamber is filled the centre of
gravity is moved and the receiver oscillates in such manner as to pour out its
contents into the tank below. To the receiver is suitably connected a lever.or
system of levers adapted to operate the foot valve of the container the motion of
which is adjustable by screw nuts on its spindle; owing to the oscillating movement
of the receiver through said connections the container valve is opened and closed
whereby a quantity of the reagent in same is allowed to flow through a pipe down
into one of the chambers of the oscillating receiver.
The movement of the receiver is. regulated by screws and stops and the
quantity of reagent necessary to separate the stony ingredients from the water
under treatment is decided thereby.
That side of the receiver which is filled with water descends and the container
valve opens simultaneously to the reagent at each operation whereby
a fixed.
quantity of water is automatically mixed with a certain quantity of reagent each
time the receiver oscillates; and pours the mixture out into the lower tank.
In this tank the separation of the stoney matters. takes place; these are
precipitated to the bottom while the pure water ascends through a superposed
filter, which may consist.of wood flock, hay, mats, or the like (placed on a suitable
frame) which will permit the water to pass on freely, but arrest the passage of any
small light flues of reagent; or matter which may be suspended in the water'; after
having passed this filter, the-water is perfectly pure and may then be led through
a pipe to the feed water vessol, or directly to the suction pipe of the feed pump:
The process, described above, is applied. where crude or natural water is
concerned. If the apparatus is to be used for boilers wherein condensed water is
used for feeding together with necessary natural water to replenish the consumption,
the oil, which results from the condensed steam is removed from the condensed-
water by the following process :-
The natural replenishing water is led through a pipe to the oscillating receiver,
and.the condensed water is led through a pipe into the tank, and the whole mixture is

page_text: then led from about the base of the tank upwards and delivered upon the top of the
filtering material in an adjoining tank which consists of small cokes above and
larger cokes below. The oil grease and other impurities remain on the surface of
the filter, and the purified water passes through and is led from the base through a
pipe to the feed pump or vessel.
To clean the apparatus, described first, the precipitates are led out through a
blow out pipe situated in the base of the tank, say once a week, after first having
been agitated more or less with the water in the tank; the second apparatus is cleaned
by removing each, or every other day, according to circumstances, about two inches
of the top layer of the coke filter which may be burned under the boilers, and
fresh cokes are then substituted therefor.
Dated thin 25th day of July 1804
J. C. CHAPMAN,
Agent.
Improvements in Feed Water Purifying Apparatus for Steam
Boilers.
I, JULIUS BRUUN, of Raadmandsgade 24, Copenhagen, in the Kingdom of
Denmark, Machinist, 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 :-
This apparatus has for its object to remove automatically froin feed water for
steam boilers such matters as may produce sediment or incrustation, to prevent
these entering the boilers, and to admit only pure water. The apparatus is
applicable where crude or natural water only is used for feeding, and also when
condensed water is used in connection with natural water for replenishing or
"make up" feed.
I will describe my invention in reference to the accompanying drawing in which
I have illustrated apparatus adapted for both these cases.
Fig. 1 is a section on line 1-1 of Fig. 2 which is a section on line 2-2 of
Fig. 3, the latter being a plan of an arrangement for treating natural water only.
Fig. 4 is a longitudinal section and Fig. 5 a plan of an arrangement for treating
together both condensed and natural waters.
Referring to Figs. 1, 2, and 3, the apparatus consists of a container A for any
suitable chemical solution or reagent determined for any special water.
It has an
outlet with foot valve D at its base, which discharges into a balanced oscillating
receiver B consisting of two chambers bb' and revoluble about its pivots ss which
are mounted in a suitable frame T situated in the upper part of a filtering tank E
or otherwise conveniently.
The natural water to be treated is led direct through an inlet pipe H into one of
the chambers, say b, of the balanced oscillating receiver B, and when this chamber
is filled, the centre of gravity is moved and the receiver oscillates in such manner
as to pour out its contents into the tank E below, bringing the other chamber b¹
below the orifice of pipe H. To the receiver B is suitably connected by a slot
connection at c or otherwise a lever, or it may be a system of levers, such as C C¹
adapted to operate, at each oscillation the receiver B, the spindle a of the said
foot valve D of the container A, the lifting motion of which valve is adjustable by
means of screw nuts S₁ on its spindle a. Owing to the oscillating movement of the
receiver B through these said adjustable connections C C" and spindle a, the
container foot valve D is opened and closed, and thereby any predetermined
quantity of the reagent in same is allowed to flow through the pipe d or otherwise
suitably and discharge into one of the chambers, say b, of oscillating receiver B.

page_text: The movement of the receiver B is regulated by suitably disposed stops such
ast t, by which as well as the adjusting screws S S₁ the discharge and quantity of
reagent necessary to separate the stony ingredients from predetermined volumes of
the water under treatment is decided.
That side of the receiver B which is filled with water through inlet pipe H
descends and the container valve. D opens, simultaneously admitting the reagent
solution at each operation, whereby a fixed quantity of natural water is auto-
matically mixed with a certain quantity of reagent each time the receiver oscillates,
and pours the mixture out into the lower tank E.
In this tank the separation of the stony or deleterious matters takes place.
These are precipitated to the bottom while the pure water ascends through a
superposed filter K, which may consist of wood flock, hay, mats or the like (placed
on a suitable frame k as shown) which will permit the water to pass on freely, but
arrest the passage of any small light flues or particles of reagent or matter which
may be suspended in the water; after having passed through this filter, the water
is purified and may then be led through a delivery pipe e to the feed water vessel,
or directly to the suction pipe of the feed pump.
The process described above is applicable where crude or natural water is
concerned. If however the apparatus is to be used for boilers wherein condensed
water is used for feeding together with necessary natural water for making up the
consumption, the oil which results from the condensed steam is removed from the
condensed water by the following process.
Referring to Figs. 4 and 5, the natural replenishing water is led through inlet
pipe H to the oscillating receiver B which is arranged as above specified, and the
condensed water is led through a separate pipe N into the tank E, and the whole
mixture is then led from about the base of the tank E upwards through pipe O
and delivered upon the top of the filtering material R in an adjoining tank or
compartment E which consists of small pieces of coke r at the upper part and
larger ones below. The oil, grease, and other impurities residual of condensation
together with the precipitate from the natural water remain on the surface of this
filter R, and the purified water passes through same and is led from the base
through delivery pipe O¹ to the feed pump or vessel.
To clean the apparatus described first, the precipitates are led through a valved
blow-out pipe at L situated about the base of the tank E whenever found necessary
or desirable after first having been agitated more or less with the water in the
tank the second apparatus is cleaned by removing when required according to
circumstances a small depth of the upper layer of the coke filter R (which may be
burned under the boilers) and fresh coke or filtering materials are then substituted
therefor.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An apparatus for automatically purifying feed water by mixing therewith
certain quantities of such reagents as are known to separate the stony ingredients
from predetermined volumes of feed water and filtering of the separated stony
ingredients, which apparatus consists essentially in the combination of the
container A with adjustable foot valve D, oscillating feed receiver B constructed
and mounted as specified, and connected to the adjustable foot valve D in such
manner as to automatically operate same at each oscillation, and the tank E with
or without the filter K, all substantially as and for the purposes set forth.
66
2. An apparatus for automatically treating condensed water and natural
"make-up" (replenishing water) consisting in the combination of the receiver A
with foot valve D, oscillating feed receiver B constructed and mounted as specified,
and connected to the adjustable foot valve D in such manner as to automatically
operate same at each oscillation, the condensed water feed N with tanks E E' and
filter R, all substantially as set forth.

page_text: 3. The several arrangements for treating and purifying feed water above
described; arranged or adapted to operate substantially in the manner and for the
purposes specified.