Improvements in Apparatus for Distilling Sea Water.
Year: 1892

page_text: Date of Application, 24th June, 1392--Accepted. 30th July, 1892
COMPLETE SPECIFICATION.
Improvements in Apparatus for Distilling Sea Water.
I, SAMUEL SMILLIE of the Havelock Copper Works, 71 Lancefield Street, in
the City of Glasgow, Copper Smith and Brass-founder 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 has for its object to simplify and generally improve the construction
of apparatus used for distilling sea water for the production of fresh water.
The improved distilling apparatus which is represented in the accompanying
drawings in elevation at Figure 1, in vertical section at Figure 2 and in part plan
at Figure 3 is composed of the usual cylindrical shell or vessel A containing the
salt water to be distilled and which is admitted thereto from an auxiliary vessel B
whereinto it is pumped through an inlet b.
Within the vessel A is fitted a duplex worm C C¹ of copper or other piping
through which steam is passed to vaporise the sea water, the steam entering the
coil by an inlet e and passing by a two way branch at c to and through both the
outer coil C and the inner coil C¹ of the worm and at the junction of the coils at c²,
being led down a pipe D which conveys the steam to a worm E placed in the
auxiliary vessel B from which worm E it is discharged through a steam trap, or,
when used on board ship, to the hot well of the condenser.
The lower ends of the duplex worm are flanged and bolted to the bottom plate A¹
of the vessel A and the connecting inlet c and outlet d being similarly flanged and
secured whilst the said plate A¹ is secured by a stay bolt F removal of said plate
for cleaning of the apparatus is easily effected. The duplex coil is supported at its
upper end by means of uprights G secured in the bottom plate Ai and having
bracket arms g, g upon which the upper coils of the worm rest.
Three of such
supports which are shown at Figure 3 and in detailed elevation at Figure 4 are
employed, and these whilst maintaining the worm upright upon the bottom plate
leave sufficient freedom for vibration of the coils on the admission of steam to ensure
dislodgment of salt or scale adhering to them, frequent removal for cleaning being
thus avoided.
The vapor raised by heating of the sea water in the vessel A is led to a fresh
water condenser in the usual way by means of a perforated or slit pipe H. The
usual accessories such as the gauge glass I, pressure gauge J and safety valve which
is connected at K, and blow off cock L are provided.
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 :-
1. Apparatus for distilling sea water constructed, arranged and combined substan
tially as herein described with reference to the accompanying drawings.
2. In apparatus for distilling sea water the duplex worm or coil constructed as
set forth and supported on a removable bottom plate substantially as described with
reference to the accompanying drawings.
Dated this Twenty-third day of June 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.