IMPROVEMENTS IN HYDRO-CARBON FURNACES
Year: 1884

page_text: I, HERBERT, JOHN HADDAN, of 67, Strand, in the City of Westminster, Civil
Engineer, do hereby declare the naturo of my invention for IMPROVEMENTS IN
HYDRO-CARBON FURNACES,, and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
It is often desirable to use petroleum or hydro-carbon liquid as the source of
heat in a steam generator, as it is well known such liquids produce an intense heat
on combustion, and are, at the same time, among the most economical sources of
heat available for the purpose. Many devices have been proposed for the purpose.
usually quite complicated and precluding the use of any other source of heat. It
also seems desirable therefore that some means should be provided for utilizing hydro-
carbon liquids as the combustible under steam generators, which should not require
any change in the construction of the ordinary combustion chamber but which can
at will be placed therein for use or withdrawn therefrom.
The object of this.invention is to provido such means to which end it consists in
the combination of devices more particularly hereinafter set forth and claimed.
In the accompanying drawing
Figure 1, represents a longitudinal vertical section.
section in the plane x fig. 1.
Similar letters indicate corresponding parts.
Figure 2, is a horizontal
In this drawing the letter A designates the furnace wall which supports the fire
grate B to which access can be had through a door and beneath which is the
ordinary ash pit which is open, so that the atmospheric air can pass freely into it.
On the grate is placed a pan C of iron or any other suitable material and this pan
is supplied with petroleum or other. hydro-carbon liquid through a pipe D, which
extends from a tank E. The supply of hydro-carbon liquid is regulated by a stop
cock a.
The pipe D is by preference made to extend down near to the bottom of
the pan so that the flame is not liable to pass into said pipe. In front of the pan C
is situated a tubular head F which is provided with a series of nozzles b which may
rest upon the edge of the pan as shown, so that they sustain the head F or which
may be arranged in any other manner so that jets of steam injected through them
will sweep over the surface of the liquid contained in the pan. The head F
connects by means of a pipe G with a steam generator H and this pipe is provided

page_text: with a stop cock c, so that the supply of steam to the head F and nozzles b can be
regulated. This head F being of larger section and capacity than the supply pipe
furnishes a chamber in which the pressure of the steam is equalized so that it may
issue from all the nozzles with equal and controllable force.
If the furnace is to be used for a steam boiler an additional steam pipe must be
provided which connects with a supplementary steam generator and which supplies
steam until the boiler H has been heated to the required temperature to produce
steam. When the pan C has been supplied with a sufficient quantity of hydro-
carbon liquid this liquid is ignited and then the steam pipe G is opened. By means
of the jets of steam the flame of the hydro-carbon liquid is spread, a large quantity
of atmospheric air is caused to rush in from below and the flame becomes very
powerful and intense so that a great heat is produced with a comparatively small
expenditure of fuel.
It will be noticed that the use of these devices necessitates no change in the
combustion or fire chamber, it remaining unchanged and ready for use with other
combustibles when desired. To use this device it is simply necessary to set the
pan upon the grate bars and make the pipe connections D and G, while to use coal
or other combustibles it is simply necessary to remove the pan and unscrew the
pipes D and G at the cocks a and e or other convenient points the work of but a
moment and not requiring any amount of technical skill nor the aid of tools
beyond a mere wrench.
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. The combination with the furnace grate of an open pan adapted to be placed
therein, a pipe leading into the pan and connecting it. with a tank or supply of
hydro-carbon liquid, a tubular head situated in close proximity and parallel to the
pan, a series of nozzles projecting therefrom and a pipe connecting the tubular head
to a source or supply of steam, substantially as described.
2. The combination with a furnace grate of an open pan seated or placed on the
grate and adapted to contain a hydro-carbon liquid for combustion therein, a
tubular head in proximity to and parallel to the pan, a pipe connecting this head,
to a supply or source of steam and a series of nozzles projecting from said head and
resting upon the edge of the pan whereby the tubular head is supported and jets
of steam forced over the surface of the liquid in the pan, the whole forming a
readily removable or replaceable device for burning hydro-carbon under furnaces,
substantially as described.
Ը
1001