Improvements in Apparatus for Distilling Sea Water and other Water containing Foreign Matter or Impurities.
Year: 1890

page_text: Date of Application, 7th Nov., 1890
Complete Specification Left, 7th Aug., 1891-Accepted, 12th Sept.. 1891
CIPTUATION.
Improvements in Apparatus for Distilling Sea Water and other
Water containing Foreign Matter or Impurities.
I, ALPHONSE NORMANDY of No. 6 The Crescent, Clapham Common, in the
County of Surrey, Engineer, do hereby declare the nature of this invention to
be as follows:-
My invention relates to an improved construction of apparatus for evaporating
or distilling sea water and other water containing foreign matter or impurities,
such apparatus being more particularly applicable for use on board steam ships but
which may also be used for other purposes.
For this purpose the apparatus consists firstly of an outer chamber, inside which
is an inner chamber. A regulated supply of sea water is admitted into the outer
chamber so as to fill it up to a desired height, and surround the inner chamber with
sea water.
A regulated supply of steam from a boiler is admitted into the inner chamber,
and is condensed therein by the sea water outside thereof, and the condensed water
thus formed inside the inner chamber escapes therefrom by a small opening at
bottom of suitable size to allow all the condensed water to escape, and but little or
none of the uncondensed boiler steam. The condensed water escaping by the said
opening is fed back into the boiler.
The boiler steam inside inner chamber, evaporates a portion of the sea water
outside thereof, and the secondary steam thus formed rises into the upper part of
the outer chamber.
The secondary steam escapes from the outer chamber by an opening of suitable
size and then passes through a steam valve to the steam ship's condensers, so as to
be condensed into water for feeding into the boiler to make up for lost water, or
else it passes through a second steam valve to a drinking water condenser to be
condensed into cold drinking water.. Sometimes this secondary steam is made to
pass simultaneously through both steam valves, for the purposes named.
The above described outer chamber
bottom for quickly discharging sea water and impurities therefrom, and with a
provided with a large blow-off cock at the
small blow-off cock above the large one for constantly discharging
quantity of concentrated sea water or brine from the outer chamber; the small
a regulated
low off cock is provided with an index to facilitate setting it in the right
position.
The outer chamber is also provided with a gauge glass to show the level of the
ea water therein and near this gauge glass is a level plate with divisions marked
n it, so that the smaller blow off cock may be readily set to keep the level in the
auge glass about stationary at a certain division on this level plate when discharging
quantity of brine suitably proportioned to the regulated supply of sea water fed
to the outer chamber as described.
The outer chamber is also provided with a pressure gauge to facilitate keeping a
ressure of secondary steam in the outer chamber at a suitable degree.
The supply of sea water to the outer chamber is regulated by an automatic feed
gulator consisting of an upper feed chamber containing a float and of a lower feed
amber.
Sea water is admitted into the upper feed chamber by an opening which is more
less closed by a float when the sea water in the feed chamber rises to a certain
ight.
An opening of suitable size is formed in the partition between the upper and-
[Price 87

page_text: lower feed chambers so as to pass a desired quantity of sea water from the former
into the lower feed chamber, from whence it is drawn by a pump, and forced into
the before mentioned outer chamber of the apparatus.
The above mentioned drinking water condenser consists of an outer chamber
inside which is an upper inner chamber and a lower inuer chamber which com-
municate with each other by a pipe.
A current of cold sea water is caused to circulate through the outer chamber, by
entering it at the bottom, and escaping therefrom near the top thereof, this current
of sea water thus surrounding the said upper and lower inner chambers.
The secondary steam from the outer chamber of the main apparatus passing
through steam valve enters the upper inner chamber of the drinking water condenser
and is therein condensed into hot fresh water, this hot water then falls into the
lower inner chamber so as to be cooled in passing through it, by the cold sea water
circulating outside thercof as described. The cooled fresh water is then passed
through a suitable filter to remove any slight taste it may have, and from thence it
passes to the drinking water tanks or it may be passed direct to the drinking water
tanks without filtration.
Dated 13 CN
1000
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Distilling Sea Water and other
Water containing Foreign Matter or Impurities.
1, ALPHONSE NORMANDY of No. 6 The Crescent, Clapham Common, in the
County of Surrey, 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 :-
My invention relates to an improved construction of apparatus for evaporating
or distilling sea water and other water containing foreign matter or impurities, such
apparatus being more particularly applicable for use on board steam ships, but
which may also be used for other purposes, as I shall describe referring to the
accompanying drawing which is a longitudinal section of the improved apparatus.
A. is an outer chamber, inside which is an inner chamber B, preferably consisting
of a number of tubes as shewn. A regulated supply of sea water is admitted into
the chamber A so as to fill it up to a desired height and to surround the inner
chamber B. with sea water.
A regulated supply of steam from a boiler is admitted by the pipe C into the
inner chamber B, and is condensed therein by the sea water outside thereof, and
the condensed water thus formed inside the inner chamber B escapes therefrom by
a small opening b at the bottom, of suitable size to allow all the condensed water to
escape, and but little or none of the uncondensed steam. The condensed water
escaping by the opening is fed back into the boiler.
The heat of the steam inside the chamber B evaporates a portion of the sea
water outside thereof, and the secondary steam thus formed rises into the upper
part of the chamber A. and escapes by an opening D of suitable size and then passes
through a steam valve D' to the steam ships condensers so as to be condensed into
water for feeding into the boiler to make up for lost water, or else it passes through
a second steam valve D to a drinking water condenser E to be condensed into cold
drinking water. Sometimes this secondary steam is made to pass simultaneously
through both steam valves D1 D2 for the purposes named.
The chamber A is provided with a large blow off cock F at the bottom for
quickly discharging sea water and impurities there rom, and with a small blow off
cock above the large one for constantly discharging a regulated quantity of
concentrated sea water or brine from the chamber A.

page_text: The chamber A is also provided with a gauge glass a to shew the level of the
sea water therein and near this gauge glass is a level plate a' with divisions marked
on it, so that the smaller blow off cock f may be readily set to keep the level in
the gauge glass a about stationary at a certain division on this level plate a', when
5 discharging a quantity of brine suitably proportioned to the regulated supply of
sea water fed into the chamber A.
The chamber A is also provided with a pressure gauge a³ to facilitate keeping a
suitable pressure of secondary steam in the chamber.
The supply of sea water to the chamber A is regulated by an automatic feed
regulator consisting of an upper feed chamber G containing a float and of a lower
feed chamber G¹.
Sea water is admitted into the upper feed chamber by an opening which is more
or less closed by the float when the sea water in the feed chamber G rises to a
certain height.
An opening of suitable size is formed in the partition between the upper and
lower feed chambers so as to pass a desired quantity of sea water from the former
into the lower feed chamber, from whence it is drawn by a pump P and forced into
the chamber A.
The drinking water condenser consists of an outer chamber E inside which is an
upper chamber H and a lower inner chamber H¹ which communicate with each
other and consist, as shewn, of a number of tubes.
A current of cold sea water is caused to circulate through the outer chamber E
by entering it at the bottom, and escaping therefrom near the top thereof, this
current of sea water thus surrounding the said upper and lower inner chambers H
and H.
The secondary steam from the chamber A passing through the steam valve D²
enters the inner chamber H and is therein condensed into hot fresh water, this hot
vater then falls into the lower inner chamber H¹ so as to be cooled in passing
hrough it, by the cold sea water circulating outside thereof as described. The
ooled fresh water is then passed through a suitable filter K to remove any slight
aste it may have, and from thence it passes to the drinking water tanks or it
e passed direct to the drinking water tanks without filtration.
may
The flow of the fluids throughout the apparatus is indicated by the arrows.
Having now particularly described and ascertained the nature of my said
vention and in what manner the same is to be performed I declare that what
claim is :-
Apparatus for distilling sea water and the like, substantially as described and
ustrated by the accompanying drawing.
Dated this 7th day of August 1891