Improvements in Water Purifiers for Steam Boilers.
Year: 1884

page_text: Improvements in Water Purifiers for Steam Boilers.
[Communicated from abroad by Ezra William Vundusen, of Newport, in the
County of Campbell, and State of Kentucky, one of the United States of
America, Machinist.]
COMPLETE SPECIFICATION.
I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer do hereby declare the nature of this invention for "IMPROVEMENTS IN
WATER PURIFIERS FOR STEAM BOILERS and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to improvements in water circulating and purifying
attachments for steam boilers The objects of my invention are
First, to provide means for intermingling the water from the heater with water
taken from the boiler and passing the same through the purifying device to the
boiler.
Second to provide means for taking the water from one end of the boiler, and
introducing water at the other so as to produce a current or circulation of water in
the boiler and assist in purifying the water.
Third to provide means for mixing soda or other purifying material with the
feed water.
Fourth to provide diaphragms shelves or settling pana in series inside of the
purifying chamber one above the other and so arranged that the water in its
passage through the purifier to the boiler must take a zig-zag course from side to
side of said chamber so as to allow the water to deposit a portion of the mud or
other sediment it contains upon each of the series of settling diaphragms.
Fifth to provido means for using water from the boiler or feed water to wash off
the series of settling pans or diaphragms.
Other features of my invention will be fully described in the following description
of the accompanying drawings in which.
Figure 1 is a side elevation of the device attached to a boiler.
Figure 2 is a central vertical section of the purifying device.
Figure 3 a cross section of the same on line x-x of Fig. 2.
Figure 4 is a detail view of the ejector or apparatus for mingling the water from
the heater with that from the boiler.
Figure 5 is a longitudinal vertical section of a modified form of purifier.

page_text: Figure Gn section on same line x x Fig. 5.
A represents the steam boiler, B is the purifying chamber, B¹ the lower and B²
the upper head of same bare settling diaphragms or pans inside of said chamber,
b is a perforated portion of same.
C is a pipe conveying water from the boiler to the purifier. C valve in sime,
D water pipe supplying the chamber. D' the ejector or device for mixing the feed
water with that from the boiler D³ the pipe conveying said water to tho
purifier the vessel for containing soda or other suitable purifying material.
dcut off valve and a drain cock, screw cap screwing onto the top of
vessel E boiler feed pipe leading from the purifying vessel to the boiler,
E valve of saine, fledges on the settling diaphragms b,' G the blow-off' pipe
G' valve of same, leg or standard stepped into bottom of pipe G and resting on
the floor to support the apparatus legs supporting diaphragms b.
The operation of my device is as follows:-
:-
Valves C and E' are opened, water is force. through pipe D and downward
through ejector D₁ by a pump or inspirator which causes a flow of water from
boiler A through pipe C to ejector D' where it mingles with the water from the
pump coming through pipe D and thence through pipe D' to the purifier.
The valve d is left open so that water from the pump or inspirator can enter
vessel d and dissolve the soda contained therein when the pulsation of the pump
or inspirator exhau-ts a portion of the solution and mingles it with the feed water
and it passes with it into the purifying chamber and assists in separating the
lime or other impurities from the water and depositing the same in the purifying
chamber.
After the water enters the purifier it follows the course indicated by arrows in
Fig. 2 passing upward and depositing the mud or other sediment it contains upon
plates. b. Lelge serves to retain the deposited; sediment upon said plates or
dia hragms; the water passes thus slowly through vessel B depositing its sediment
on diaphragms and goes out through pipe E to the boiler at the end, thereof
opposite that from which water is taken.
This is a very desirable feature as by this means, a circulation of water from
end to end of the boiler is obtained thus preventing the depositing of sediment
inside the boiler.
↑
When it is desired to blow out the sediment contained in the vessel B, valves C
and E are first closed (the pump being stopped) valve G is then opened and the
water in vessel B is allowed to run out. Valve E is then opened and water is
forced by the pressure in boiler A through pipe E and dashes down upon
diaphragm washing off all sediment lying thereon and carrying it down through
mud chamber B₁ and blow-off pipe G.
In blowing out vessel A the water takes a course just. the opposite of that
indicated by arrows in Fig. 2. It will be seen that the ferforated or open portion
of the diapliagms are located alternately on opposite sides or ends of vessel B and
cach over the solid portion of the next in series below.
By this arrangement the water strikes fairly upon the top of said solid portion
and readily washes off the sediment thereon.
It is obvious that instead of using the water from the boiler to clean the settling
diaphragms water from the pump may be used by means of pipe connections
shown in Fig. 5, in dotted lines.
This method would be desirable in some cases as it economizes the water in the
boiler.
In Figs. 5 and 6 I show a modified form of my device in which the vessel - B.i3
placed in a horizontal position instead of upright and the settling diaphragmns or
shelves are placed horizontally as shown in Fig. 5.
The functions of the various parts are exactly the same as in the first form of
my device.
It is obvious that soda chamber dinay be attached to my device between the
heater and the pump and still perform the same function.

page_text: The soda chamber d may be connected to the purifier direct instead of being
connected to the feed water pipe and still embrace one of the features of my
invention as the mingling of the soda with hot feed water in the purifier materially
assists the separation of the lime or other mineral held in solution.
It is also obvious that plates or diaphragms b may be made with a section
entirely removed instead of being perforated as shown in the drawings.
By combining the soda vessel with the boiler and purifier having a circulation
as described the soda is caused to mingle with warm water in the purifier
thus incurring the settlement of the lime and like impurities in the purifying
chamber.
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:
1. In a boiler feed water circulator, and purifier the combination of a purifier,
a boiler a pipe connecting the delivery end of the purifier with the boiler, a water
supply pipe connecting with the receiving end of the purifier a pipe connecting the
supply pipe and boiler and valves the several parts being arranged to maintain a
circulation of water from the supply pipe and boiler through the purifier to the
boiler substantially as described.
2. In a boiler feel water circulator and purifier the combination of a purifier
provided with a series of diaphragms having openings at alternate ends a boiler, a
pipe connecting the delivery end of the purifier with the boiler a water supply
pipe connecting with the receiving end of the purifier a pipe connecting the supply
pipe and boiler an ej-ctor connected with the pipe between the boiler and purifier
and valves the several parts being arranged to maintain a circulation of water
from the supply and boiler through the purifier to the boiler substantially as
described.
3. In a boiler circulating and purifying attachment for steam boilers a
purifier B having heads B B and provided with a series of diaphragms b
perforated or partially open at alternate ends and having dividing ledges ƒ
substantially as described.
4. In a boiler feed water circulator and purifier the combination of a boiler, a
purifier a pipe connecting the delivery end of the purifier with the boiler a water
supply pipe connecting with the receiving end of the purifier a pipe connecting
the supply pipe and boiler whereby a circulation is maintained from the boiler
through the purifier and back to the boiler, and a device for supplying a purifying
material to the purifier whereby warm water and purifying material will mingle
in the purifier and the resulting sediment deposited in the purifier substantially as
described.
5. In a boiler feed water circulator and purifier the combination of boiler A
purifier B pipe E connecting the boiler and purifier, supply pipes D D², pipe C
connecting the boiler and pipe D2 and the vessel & connecting with pipe D and the
valves whereby water is circulated from the boiler through the purifier and back
to the boiler and a purifying material drawn from vessel d to mingle with warin
water in the purifier substantially as described.
BAL: 10th Jan T1001