Improved Means for Atomizing and Diffusing Combustible Liquids.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improved Means for Atomizing and Diffusing Combustible Liquids.
I, PIERRE MARIE ASTERE DROUOT, of 39, Rue de Paris, Cherbourg, in the
Republic of France, Engineer, do hereby declare the nature of this invention to
be as follows:-
This invention relates to atomizing and diffusing combustible liquids employed
as fuel for heating furnaces or other purposes and has for its principal object to
heat and then atomize or diffuse such liquids by the action of their own vapour.
The combustible liquid is passed from a reservoir and compressed by a pump
into a reservoir provided with a pressure gauge. The liquid passes from the
said reservoir into a box provided with a stop-valve to prevent any return-flow
of the liquid. The liquid after having traversed this box enters the boiler where
it is vapourized. This boiler is highly heated by any suitable means generally
by the combustible vapour itself which passes from any suitable point through
a pipe to the burners.
The vapour from the boiler passes through a pipe into the diffuser where it
carries along with it and atomizes the combustible liquid passing along a pipe
leading from a point rearward of the boiler.
In case the action of the boiler be stopped, the diffuser may be operated by
steam conveyed by a special pipe.
The boiler is composed of two parts provided with ribs and placed side by side,
to form a serpentine channel. The liquid enters at one extremity and leaves at
the other extremity in a vapourized state. The serpentine channel of the boiler
is easily accessible all that is necessary for cleaning from tar and other deposits,
being to separate the two parts.
The said serpentine passage is preferably provided with a low part or well;
the first portion say of the channel being made descending, while the succeeding
portions are made to ascend.
The liquid introduced descends in the first portion and during its passage it is
almost entirely vapourized, there remaining in the lower end of this first portion
only those liquids, the boiling point of which is too high to be vapourized by
the temperature applied to the boiler.
As the vapours condensed in the conduits, pass to the diffusing apparatus the
liquids therefrom fall into the boiler at the highest point of the channel and
descend and are vaporized. A drain-pipe arranged at the lowest point of the
channel conveys the non-vaporized liquid to any suitable point such as a furnace
where it is burnt.
The upper cover of the boiler may, be placed at the side, in cases where access
to the boiler cannot be conveniently obtained from the top.
It is evident, that if the liquid to be atomized, be of a nature such as to be
readily and rapidly vaporized, the boiler will not be required and in this case it
will be sufficient to introduce the liquid into an ordinary boiler tube, to be heated
by a steam, coil; two pipes being in this case provided, serving to connect the
boiler tube with the diffusing apparatus; one starting from the bottom of the
boiler tube and serving to convey. the liquid, to be atomized, to the diffusing
Di Q77

page_text: apparatus, while the other, starting from the top, serves to convey the steam or
vapour required to produce the diffusion.
Dated this 17th day of August 1898.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
improved Means for Atomizing and Diffusing Combustible Liquids.
I, PIERRE MARIE ASTERE DROUOT, of 39, Rue de Paris, Cherbourg, in the
Republic of France, 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 atomizing and diffusing combustible liquids employed
as fuel for heating furnaces or other purposes and has for its principal object to
heat and then atomize or diffuse such liquids by the action of their own vapour.
In order that my invention may be understood I will describe the same with
reference to the accompanying drawings in which:
Fig. 1 represents diagrammatically a heating plant constructed in conformity
with this invention.
Fig. 2 shews the boiler or heating apparatus in elevation.
Fig. 3 is a vertical section thereof on the line A-B Figs. 2 and 4, and,
Fig. 4 is a horizontal section thereof on the line C-D Fig. 2.
Fig. 5 shews in vertical section a modified arrangement hereinafter described.
The combustible liquid is passed from a reservoir 1 and compressed by a pump 2
into a reservoir 3 provided with a pressure gauge. The liquid passes from the
said reservoir into a box 4 provided with a stop valve to prevent any return flow
of the liquid. The liquid after having traversed this box enters the boiler 5
where it is vapourized. This boiler is highly heated by any suitable means,
generally by the combustible vapour itself which passes from any suitable point
through a pipe 8 to the burners 10.
The vapour from the boiler 5 passes through a pipe 6 into the diffuser 9 where
it carries along with it and atomizes the combustible liquid passing along a pipe 7
leading from a point rearward of the boiler.
In case the action of the boiler 5 be stopped, the diffuser may be operated by
steam conveyed by a special pipe 11.
The boiler 5 is composed of two parts 12 and 13 and is provided with ribs 5*
(Figs. 2, 3 and 4) placed side by side to form a serpentine channel. The liquid
enters at one extremity 14 and leaves at the other extremity 15 in a vapourized
state. The serpentine channel of the boiler is easily accessible all that is necessary
for cleaning from tar and other deposits being to separate the two parts.
This said serpentine passage is preferably provided with a low part or well 16,
the first portion 14-16 of the channel being shewn made descending, Fig. 2,
while the succeeding portions 16-17 and 17-15 are made to ascend.
The liquid introduced at 14 descends in the portion 14-16 and during its
passage is almost entirely vaporized there remaining in the well or lower end of
the first portion 16 only those liquids the boiling point of which is too high to
be vapourized by the temperature applied to the boiler.
Liquid resulting from the condensation of the vapour in the pipe 6 leading
to the diffuser flows back to the boiler at the highest point 15 of the channel
and descend the inclines 15-17-16 and is vapourized. A drain pipe arranged

page_text: at 16 conveys the non-vapourized liquid to any suitable point such as a furnace
where it is burnt or into the reservoir 3 or the conduit 7.
The upper cover 12 of the boiler 5 may be placed at the side in cases where
access to the boiler cannot be conveniently obtained from the top.
It is evident, that if the liquid to be atomized be of a nature such as to be
readily and rapidly vaporized, the arrangement described will not be required and
in this case it will be sufficient to introduce the liquid into an ordinary boiler tube
or vessel 18 (Fig. 5) heated by a steam coil 19 two pipes 6 and 7 being provided
serving to connect the boiler tube or vessel 18 with the diffusing apparatus 9:
one 7 starting from the bottom of the boiler tube and serving to convey the liquid
to be atomized, to the diffusing apparatus while the other 6 starting from the top,
serves to convey the combustible vapour required to produce the diffusion.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. Improved means for atomizing and diffusing combustible liquids comprising
a vessel 18 in which the oil is superheated, and which is connected to any suitable
atomizing or diffusing apparatus 9 by means of two pipes, one pipe 7 leading from
the bottom of the said vessel to the diffusing apparatus for conveying the super-
heated oil into the said diffuser, and the other pipe 6 leading from the upper
part of the said heating vessel for the purpose of conveying the combustible vapour
to the diffusing apparatus, substantially as described.
2. Improved means for atomizing and diffusing combustible liquids comprising
a boiler, in which the combustible liquid is vaporized as it is introduced, the
vapour so obtained passing to a diffusing apparatus, where it atomizes or diffuses
the combustible liquid admitted thereto from a point rearward of the boiler sub-
stantially as hereinbefore described with reference to the accompanying drawings.
Dated this 14th day of April 1899
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.