Improvements in Apparatus for Intercepting and Separating Oleaginous and other Matters from the Water of Condensation from Surface Condensers.
Year: 1891

page_text: Date of Application, 19th Jan., 1891
Complete Specification Left, 19th Oct., 1891-Accepted, 21st Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Intercepting and Separating
Oleaginous and other Matters from the Water of Condensation
from Surface Condensers.
I HARRY CHILCOTT Engineer, of Steam Flour Mills, Eling, Southampton do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to separate the oil and other light oleaginous
matters from the water of surface condensers and for removing the sediment or
other deposits which may accumulate, the water being afterwards utilized for feed-
ing the boiler for steam raising and for other purposes.
The apparatus which I employ comprises a reservoir or tank of sufficient size
provided with one or more partitions. In the first or separating chamber I dispose
in a horizontal plane a suitable number of filtering screens with meshes of varying
fineness through which the water percolates on delivery from the surface condenser
and rises in the spaces surrounding the screens in the first chamber. The oil or
other greasy matters present with the condensation water float on the top of the
water above the screens and overflow into a suitable receptacle.
The sediment in the water if not intercepted by the screens settles at the bottom
of the chamber from whence it is withdrawn through a drain cock., A pipe, the
inlet of which is midway between the level o the water and the bottom of the
chamber, is used to draw off the clean water into the adjoining chamber or clean
water tank, the overflow being governed by a regulating cock. In the second
chamber a similar pipe having its inlet disposed at or about the middle of the water
is provided, through which the water is drawn or passes by gravitation to the boiler
pump. A draw off cock is fitted to the bottom of this chamber for removing any
sediment which might still be present. Several of these separating chambers with
the screens, overflow pipes drain and regulating cocks may be employed with one
apparatus; the water circulating through each of the tanks until it is finally drawn
off in a perfectly clean condition free from oil or sediment ready for delivery into
the boiler.
Dated this 19th day of January 1891
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Intercepting and Separating
Oleaginous and other Matters from the Water of Condensation
from Surface Condensers.
I HARRY CHILCOTT Engineer of Steam Flour Mills, Eling, Southampton 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 relates to a new or improved feed water filter which is designed to
remove the oil or sediment which may have accumulated in the water of surface
condensers and contaminate such water so as to render it unfit to be subsequently
utilized as feed water. In carrying my invention into practice I provide a
reservoir or tank divided into two or more parts or chambers by means of suitable
partition plates. When two chambers are used, I arrange in the first chamber or
Price d

page_text: "separator" a series of superposed filtering screens preferably of wire gauze with
meshes of varying size through which the water from the condenser supplied by a
feed pipe percolates downwards, the oil or other greasy or light flocculent matters
coming uppermost and floating on the top of the water from which it is subsequently
discharged by means of an overflow, while the sediment which is not of a nature to
be intercepted by the screens, such as chalk, lime, &c. settles at the bottom of the
tank or reservoir from which it is withdrawn through a suitable drain cock.
A pipe which I term a "gravity pipe "the inlet of which is situated midway
between the level of the top of the reservoir and the bottom thereof-serves to
draw off the clean water into an adjoining receptacle or clean water tank. The
amount of overflow from the surface of the water immediately over the top screen
in the "separator" portion of the device is determined or adjusted by means of a
regulating cock with which the top of the gravity pipe above referred to is
provided.
The second or clean water chamber is provided with a pipe through which the
feed is drawn or passes by gravitation to the boiler pump. Several of these
separating chambers with the screens, overflow pipes, drain and regulating cocks
may be employed with one apparatus, the water circulating through each of the
tanks until it is finally drawn off in a perfectly clean condition free from oil or
sediment ready for delivery into the boiler. Also in addition to and in conjunction
with the screens, the filtering function of same might be supplemented by the
insertion of sheets or thin slabs of absorbent materials such as for instance specially
prepared asbestos.
In the accompanying drawings
Figure 1 is a sectional elevational view and Figure 2 a plan of my improved feed
water filter.
The tank T is divided into two compartments or chambers A and B by means of
the partition a. S. S', S' are the wire gauze filtering screens above referred to
and which are easily removable when necessary for the purpose of cleaning &c.
P is the feed pipe from condenser, C is a cock for the removal of sediment from
the main chamber A; and, C₁ is a similar device for the removal of any further
sediment which may have accumulated in the clean water chamber B. The water
passes through the screens S, S', and S³, reaches the bottom of the enclosing tank
and is conveyed through the gravity pipe c to the clean water tank B whence it is
finally led through the pipe d to the boiler feed pump.
The gravity pipe cis provided as herein before mentioned with a regulating cockf
for determining the overflow at g.
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
First. The improved feed water filter, arranged, constructed and operating
substantially as herein described and shown and for the purpose set forth.
Second. The improved feed water filter comprising two or more chambers the
larger of which contains a series of screens through which the water percolates and
is withdrawn by a pipe; and, a smaller chamber containing the filtered water
which is drawn off or passes by gravitation to the boiler pump substantially as
described.
Dated this 24th day of Anova 1901
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicant.