Method of and Apparatus for Purifying the Feed Water and Preventing Incrustation in Steam Generators.
Year: 1889

page_text: Date of Application 4th Feb., 1889
Specification Accepted, 9th Mar., 1889
Method of and Apparatus for Purifying the Feed Water and
Preventing Incrustation in Steam Generators.
I, CHARLES BRADBURY, of 37 Torrens Road, Brixton, in the County of Surrey,
Agent, do hereby declare the nature of this invention (a communication from abroad
by Messrs. Grimme, Natalis & Co., Limited, in Brunswick, German Empire,
Engineers,) and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, and as shewn in the
accompanying drawings:-
:-
My invention relates to an apparatus by which the feed water for steam Generators
may be purified in such a manner that it is less apt to incrustate or otherwise cause
inconvenience, the apparatus serving, with or without the assistance of chemicals, to
eliminate any such objectionable matter.
The apparatus as shewn in the drawings herewith consists of a cylinder A closed at
both ends, in which a tubular body d is concentrically fixed and tightly joined at its
upper end to the cylinder in such a manner that the fluid entering the cylinder
through the pipes a and b must pass inside the said tube d, whilst the liquor with-
drawn from the cylinder through the pipe c must pass between the outer walls of the
tubular body d and the inner walls of the cylinder A.
passes
The apparatus proper is placed above the steam Generator, while the tubes b and c
connect the apparatus in a suitable manner with the Generator. The tubo b
through the boiler flues, in connection with which is the cone k, where consequently a
similar temperature prevails as in the flues. On account of the heat in the flues and
cone k, the water reaches a higher temperature in the pipe b than in the apparatus
proper and also than in the pipe c, it consequently rises and causes a circulation of
water to take place in the following order: From the Steam Generator upwards
through the pipe b to the apparatus and downwards through pipe c to the Generator.
Any suspended matter in the water deposits at the bottom of the cylinder A.
And the water may be further purified by precipitation (through suitable chemical
agents) of any hardening and other substances, capable of precipitation, which it
may contain, such precipitate being removed from time to time through the man
hole or valve Z.

page_text: The feed water is conveyed by the pipe a, which is provided with back pressure
valve in the ordinary way, to the cylinder A and as such feed water is generally
cooler than the water already in the apparatus it helps to further facilitate the
circulation.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is :-
1. An apparatus for purifying water used in steam Generators consisting essentially
of a Cylinder A with the conical tubular body d, pipes b and c.
2. In such apparatus utilizing the heat of Boiler-flues to create circulation of
water, further facilitating such circulation by passing tho feed water through the
apparatus. Both substantially in the manner as and for the purposes described and
substantially as shown in the drawings.