Improvements in and connected with Steam Boilers.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in and connected with Steam Boilers.
I, WASSILY IVANOFF, of 11, Little Dvorianskay Street, St. Petersburg, Russia,
Technologist, do hereby declare the nature of this invention to be as follows; -
According to this invention the products of combustion instead of being with-
drawn, as ordinarily, in the chimney, are led into the boiler itself, passing
through the bulk of water contained in the boiler, thus heating the water and
producing steam, and are then collected together with the steam produced in the
steam space of the boiler.
Steam is then supplied to the steam engine, mixed with the products of
combustion.
In order that the products of combustion may be introduced into the boiler air
must be supplied to the furnace at a pressure higher than the steam pressure
of the boiler. Air is supplied to the furnace by a pipe and fuel is introduced
through an air tight feeding device. The products of combustion are led from
the furnace to an annular flue or pipe and are injected into the boiler through
valves. So long as the pressure in the furnace is higher than the steam pressure
in the boiler these valves remain open, should it be otherwise they are automatically
closed.
The bottom of the boiler is provided with recesses to collect ashes and other
solid deposits. The walls of the boiler may be lined with fireproof or acid-proof
material.
The ordinary boiler fittings are completed by an airtight manhole for inspecting
and cleaning the furnace.
It must be clearly understood that the details of carrying out this invention
may vary in a considerable degree. Thus for instance: the furnace may be
arranged separately from the boiler: in this case the boiler may be supplied only
with products of combustion, which may be conveyed to it by a lined pipe. The
furnace may be a gas furnace and in this case the gas may be supplied to the boiler
from a high pressure generator, in a similar manner to the air, by pipes and the
combustion may be effected in the boiler itself. Liquid fuel such as mineral
oil may be applied without any difficulty to this boiler.
Air is forced in the furnace by a blower or compresser: an injecting device may
be also used for this purpose if desired.
For starting the boiler before the steam engine and the blower are working the
same furnace may be used, the annular flue being connected with a chimney by
means of a pipe. It must be understood that this pipe must be closed by a valve
or the like, when the boiler has been started.
The advantages of the boiler forming the object of the present invention are
the following:
1. The products of combustion, being led not to the atmosphere through a
chimney, but into the steam engine, perform there productive work.
2. The transmission of the heat of the gases to the water is more complete, being
effected directly and not through the walls.

page_text: 3. The size and the weight of the boiler are considerably reduced.
4. In consequence of the reduced size of the boiler, the loss of heat by radiation
is diminished.,
1
5. The walls of the boiler, not being exposed to the burning gases, may be
constructed of greater strength and provided with a lining.
6. The noxious influence of scale and of soot is completely removed.
7. The absolute safety of the boiler, owing to reduced volume, occupied by the
water and to the greater strength of the walls, which may be increased as desired
and to the circumstance that the side of the boiler exposed to wear instead of
being the furnace side as is usual is in the present case the inner side and is
therefore washed over with water and steam, which renders an explosion of the
boiler impossible.
8. The working expenses of the engine are considerably reduced, the steam
being already intensely superheated and mixed with products of combustion which
prevents condensation on admission to the. cylinder."
9. A. condenser is unnecessary because the expansion of a compound of steam
and gas produces a lowering of temperature much more rapid, than the expansion
of steam only.
Natal
1
1 1000
CARPMAEL & Co., .
Agents for the Applicant
Improvements in and connected with Steam Boilers.
I, WASSILY IVANOFF, of 11, Little Dvorianskay Street, St. Petersburg, Russia,
Technologist, 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:-
According to this invention the products of combustion instead of being with-
drawn, as ordinarily, in the chimney, are led into the boiler itself, passing through
the bulk of water A contained in the boiler, thus heating the water and producing
steam, and are then collected together with the steam produced in the steam
space B of the boiler.
Steam is then supplied to the steam engine, mixed with the products of
combustion.
The accompanying drawings show a boiler made in accordance with this
invention.
Figure 1 is a vertical section of the boiler on the line 1-1 of Figure 2.
Figure 2 a horizontal section on the line 2-2 of Figure 1.
Figure 3 a vertical section on the line 3-3 of Figure 1.
In order that the products of combustion may be introduced into the boiler air
must be supplied to the furnace C at a pressure higher than the steam pressure of
the boiler. Air is supplied to the furnace C by a pipe D and fuel is introduced
through an air tight feeding device E. The products of combustion are led from
the furnace C to an annular flue or pipe F and are injected into the boiler through
valves GG. So long as the pressure in the furnace C is higher than the steam
pressure in the boiler these valves remain open, should it be otherwise they are
automatically closed.
The bottom of the boiler is provided with recesses to collect ashes and other
solid deposits. The walls of the boiler may be lined with fire-proof or acid-proof
material.

page_text: The ordinary boiler fittings are completed by an airtight manhole H for inspect-
ing and cleaning the furnace.
It must be clearly understood that the details of carrying out this invention may
vary in a considerable degree. Thus for instance: the furnace may be arranged
separately from the boiler in this case the boiler may be supplied only with
products of combustion, which may be conveyed to it by a lined pipe. The furnace
may be a gas furnace and in this case the gas may be supplied to the boiler from
a high pressure generator, in a similar manner to the air, by pipes, and the com-
bustion may be effected in the boiler itself. Liquid fuel such as mineral oil may
also be applied without any difficulty to this boiler.
Air is forced in the furnace by a blower or compresser: an injecting device may
be also used for this purpose if desired.
For starting the boiler before the steam engine and the blower are working the
same furnace C may be used, the annular flue F being connected with a chimney
by means of a pipe. It must be understood that this pipe must be closed by a
valve or the like, when the blower has been started.
The advantages of the boiler forming the object of the present invention are
the following:
1. The products of combustion, being led not to the atmosphere through a
chimney, but into the steam engine, perform there productive work.
2. The transmission of the heat of the gases to the water is more complete, being
effected directly and not through the walls.
3. The size and the weight of the boiler are considerably reduced.
4. In consequence of the reduced size of the boiler, the loss of heat by radiation
is diminished.
5. The walls of the boiler, not being exposed to the burning gases, may be
constructed of greater strength and provided with a lining.
6. The noxious influence of scale and of soot is completely removed.
7. The absolute safety of the boiler, owing to reduced volume, occupied by the
water, and to the greater strength of the walls, which may be increased as desired,
and to the circumstance that the side of the boiler exposed to wear instead of
being the furnace side as is usual is in the present case the inner side and is
therefore washed over with water and steam, which renders an explosion of the
boiler impossible.
8. The working expenses of the engine are considerably reduced, the steam
being already intensely superheated and mixed with products of combustion which
prevents condensation on admission to the cylinder.
9. A condenser is unnecessary because the expansion of a compound of steam
and gas produces a lowering of temperature much more rapid than the expansion
of steam only.
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. A steam boiler in which the products of combustion are directed from the
furnace into the boiler itself, where the products are mixed with the steam produced
and conveyed together to the engine.
2. Improvements in and connected with steam boilers substantially as described
and illustrated in the drawings.
D11
ALL 1
1000