Improvements in Apparatus for Heating and Purifying Water.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Heating and Purifying Water.
LOUIS AUGUSTE CHEVALET, of Troyes, in the Department of the Aube, France,
Engineer, and WILLIAM BOBY, of 16, Union Court, Old Broad Street, London,
Engineer, do hereby declare the nature of this invention to be as follows:
tank or
to the other
85
receptacle.
described
This invention relates to an improved apparatus for heating and purifying water
and consists principally of a number of trays or sections having a cover over the
topmost one and superimposed one upon another, and placed above a tank or
other receptacle. In this apparatus the water to be treated enters at the top
one section
of the apparatus and flows downwards from
being finally discharged into the above mentioned
Generally the construction of the apparatus may be
in the Specification No. 24,337 A.D. 1895 of L. A. Chevalet and W. Boby but with
the essential difference that the steam or other heated fluid which passes into and
through the water to be treated enters the machine at the top instead of at the
bottom of the column of sections as described in the specification above named.
The steam may enter the top of the machine through a suitable opening provided
in the cover of the top section, and between this cover (which may be coned or
domed, or of any other suitable form) and the top section is placed a plate closing
the top of the section, so that a chamber for containing steam is formed above
the top section. This chamber may be constructed in any suitable manner other
than as above described, such for instance as in a form similar to that of the
sections themselves namely cylindrical with a bottom fixed or cast to it, and a
cover over it.
In the plate forming the bottom of the steam-chamber is a hole surrounded by
a tube fixed to the bottom and of sufficient length to dip a certain distance, prefer-
ably several inches, below the surface of the water in the topmost section, the inlet
pipe for crude water after passing through a hole in the cover of the steam chamber,
passes downwards inside the above named tube and similarly dips into the water
in the section. Another hole, or holes are formed in the bottom of the steam
chamber, and in these holes are inserted tubes which dip slightly below the
surface of the water in the topmost section. Down these tubes the steam flows
from the above described chamber, enters the water, is partially condensed, and
passes under the lower edges of the tubes thus passing through and heating the
water in the section. The steam then rises to the surface of the water and fills the
upper portion of the section. In the bottom of the section are holes provided with
tubes the upper ends of which may rise above the level of the water in the section,
and the lower ends of which into the water contained in the next lower section,
these tubes convey the steam into and through the water of the lower section
exactly as above described in the case of the tubes which pass through the bottom
of the stean chamber. The tubes which pass through the bottom of each section
may alternatively be constructed so their upper ends do not rise above the

page_text: level of the water, but only to such a height above the bottom
of the section that they serve as overflows for the water, and combine the functions
of regulators of the level of the water in the sections, with that of outlets for the
steam as above described. This arrangement is repeated in all the. sections
until the steam reaches the lowest of the sections, when instead of passing out
through the bottom of the section it is conducted to the outside of the apparatus
by means of an opening provided above the level of the water in the lowest
section.
Dated this 6th day of August 1897.
Improvements in Apparatus for Heating and Purifying Water.
LOUIS AUGUSTE CHEVALET, of Troyes, in the Department of Aube, France,
Engineer, and WILLIAM BOBY, of 16, Union Court, Old Broad Street, London,
Engineer, 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 invention relates to an improved apparatus for heating and purifying water
and consists principally of a number of trays or sections having a cover over the
topmost one and superimposed one upon another, and placed above a tank or
other receptacle. In this apparatus the water to be treated enters at the top
of the apparatus and flows downwards from one section to the other
being finally discharged into the above mentioned tank or receptacle.
Generally the construction of the apparatus may bo a.s described
in the Specification No. 24,337 A.D. 1895 of L. A. Chevalet and W. Boby but with
the essential difference that the steam or other heated fluid which passes into and
through the water to be treated enters the machine at the top instead of at the
'bottom of the column of sections as described in the specification above named.
The steam may enter the top of the machine through a suitable opening provided
in the cover of the top section, and between this cover (which may be coned or
domed, or of any other suitable form) and the top section is placed a plate closing
the top of the section so that a chamber for containing steam is formed above
the top section. This chamber may be constructed in any suitable manner other
than as above described, such for instance as in a form similar to that of the
sections themselves namely cylindrical with a bottom fixed or cast to it, and a
cover over it.
In the plate forming the bottom of the steam-chamber is a hole surrounded by
a tube fixed to the bottom and of sufficient length to dip a certain distance, prefer-
ably several inches, below the surface of the water in the top-most section, the inlet
pipe for crude water after passing through a hole in the cover of the steam-chamber
passes downwards inside the above named tube and similarly dips into the water
in the section, or the crude water may be admitted by a pipe passing into the top
section at its side. Another hole, or holes are formed in the bottom of the steam-
chamber, and in these holes are inserted tubes which dip slightly below the
surface of the water in the topmost section. Down these tubes the steam flows
from the above described chamber, enters the water, is partially condensed, and
passes under the lower edges of the tubes thus passing through and heating the
water in the section. The steam then rises to the surface of the water and fills the

page_text: upper portion of the section. In the bottom of the section are holes provided with
tubes the upper ends of which may rise above the level of the water in the section,
and the lower ends of which dip into the water contained in the next lower section,
these tubes convey the steam into and through the water of the lower section
exactly as above described in the case of the tubes which pass through the bottom
of the steam chamber. The tubes which pass through the bottom of each section
may alternatively be constructed so that their upper ends do not rise above the
level of the water, but only to such a height above the bottom
of the section that they serve as overflows for the water, and combine the functions
of regulators of the level of the water in the sections, with that of outlets for the
steam as above described. This arrangement is repeated in all the sections
until the steam reaches the lowest of the sections, when instead of passing out
through the bottom of the section it is conducted to the outside of the apparatus
by means of an opening provided above the level of the water in the lowest
section, or the opening may be made so as to conduct the steam by means of a
pipe through the bottom of the section and out at the side of the bottom tank,
or receptacle.
In the accompanying drawing A is an opening through which the steam
enters and passes into the inside of the cover B, C is a plate closing the top of the
top section D. E is a tube surrounding the hole F in the plate C the tube E
dipping below the level of the water in Section D. G is the inlet pipe for crude
water placed inside the tube E. H, H, H, are tubes inserted in holes in the
plate C and having their lower edges dipping below the level of the water in
Section D, down them the steam passes, enters the water in the top section, is
partially condensed, and passing under the lower edges of the tubes heats the
water in the section, and fills the upper part of the section. J are tubes inserted
in holes in the bottoms of the respective sections and having their upper ends at
a height above the bottoms of the sections which gives the desired water level
when the water flows over their upper edges and down through the tubes into
the respective Sections O, P, Q, R, S, below. Steam also passes down the tubes J
and has a similar effect in the respective sections to that described in the case of
the top Section 1). K is an opening surrounded by a tube which reaches above
the water level in the bottom section so that the steam by its means is conducted
from the upper portion of the bottom section into the upper part of the bottom
tank or receptacle L, whence it issues to the outside of the apparatus by means
of the opening M. N is a tube dipping into the bottom tank to such a depth
that steam cannot flow through it owing to the resistance of the water in the tank
and water only from Section S passes down it.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we declare that what we
claim is:
1. The arrangement of inlet, over. flow-tubes, and outlet, enabling steam or
other heated fluid to be admitted at the top of, and to flow downwards through,
an apparatus for heating and softening water, substantially as described and shown.
2. The arrangement of tubes J, serving for the passage of both steam and water
substantially as described and shown.
1
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1000