Improvements in Apparatus for Injecting Fuel and Hot Air into Furnaces, for Injecting Liquid and Solid Matter into Retorts
Year: 1884

page_text: Improvements in Apparatus for Injecting Fuel and Hot Air into
Furnaces, for Injecting Liquid and Solid Matter into Retorts
I DAVID TILDESLEY of 6 Devonshire Villas, Brondesbury, in the County of
Middlesex, Insurance Agent, do hereby declare the nature of my invention for
"IMPROVEMENTS IN APPARATUS FOR INJECTING FUEL AND HOT AIR INTO FURNACES,
FOR INJECTING LIQUID AND SOLID MATTER INTO RETORTS FOR GAS-MAKING, AND
FOR AERATING CONDENSED WATER" to be as follows:-
This Invention relates to apparatus for injecting fuel into furnaces or for
supplying a hot air blast thereto for injecting liquid and solid matter into retorts
for gas making and for aerating condensed water in ocean going steamers.
I will describe the Invention as applied to feeding furnaces with fuel, but it will
be understood that the action of the apparatus is similar when applied to the other
uses above mentioned.
The injection of the fuel is effected by the inductive action of jets of super-heated
steam in an apparatus of substantially the following construction. The apparatus
consists of an annular cylindrical chamber divided from another chamber which
may also be of annular form by a partition having two distinct sets of orifices
through it, the orifices of the one set converging towards those of the other set and
with both of which sets of orifices another single set of orifices in the cover plate
of the second or induction chamber is in alignment. Steam is supplied to the first
chamber and escapes from the one set of orifices in the partition, traverses the
induction chamber and issues from the orifices in the cover plate thereof. The
second set of orifices in the partition is in direct communication with the supply
pipe or pipes for the fuel to be injected, and the inductive action of the jets of
steam in traversing the induction chamber creates a partial vacuum therein and
causes a supply of the fuel to be drawn through the supply pipes and through the
orifices into and through the induction chamber whence it issues at the orifices in
the cover plate thereof in an atomized condition along with the jets of steam.
Or instead of two sets of orifices in the partition, the supply pipes for the fuel
may lead directly into the sides of the induction chamber. There may be a central
passage through the annular chambers which may be utilised for supplying oxygen
to the flame.
The steam and fuel supply pipes would be provided with suitable cocks or valves
to regulate the flow, and the steam chamber may be provided with a drip pocket
and pet cock for removing water of condensation.

page_text: Improvements in Apparatus for Injecting Fuel and. Hot Air into
Furnaces, for Injecting Liquid and Solid Matter into Retorts
-
I DAVID TILDESLEY, 6, Devonshire Villas, Brondesbury in the County of
Middlesex, Insurance Agent do hereby declare the nature of the said invention for
"IMPROVEMENTS IN APPARATUS FOR INJECTING FUEL AND HOT AIR INTO FURNACES,
FOR INJECTING LIQUID AND SOLID MATTER INTO RETORTS FOR GAS MAKING, AND FOR
AERATING CONDENSED WATER" 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 apparatus for injecting fuel into furnaces or for
supplying hot air blast thereto; for injecting liquid matter into retorts for gas
making; and for aerating condensed water in ocean going steamers.
The injection of the fuel is effected by the inductive action of jets of superheated
steam in an apparatus of substantially the following construction.
I will describe the invention with reference to the accompanying drawings as
applied to feeding furnaces with fuel but it will be understood that the action of
the apparatus is similar when applied to the other uses above mentioned.
Figure 1 is a plan. Figure 2 is a half sectional plan. Figure 3 is a section.on
centre line of Figure 2. Figure 4 is a cross section on line 1-2-3, Figure 2...
-The apparatus consists of an annular cylindrical chamber A divided from another
chamber B which may also be of annular form by a partition a provided with an
external circle of orifices b and 'within that circle with a circular recess forming
third chamber C and a seat in which is held the plate c perforated with a circle of
orifices d.
a
The cover D of chamber B has a circle of orifices g in alignment with both sets
of orifices b and d which are convergent and meet in direction at the orifices g. It
is important that the surface of the plate c from which the orifices & emerge should
not be on a level with orifices b, but should be inclined or conical and about
perpendicular to the direction of orifices d.
Superheated steam is supplied to the first chamber A through pipe E, escapes
from the orifices b, traverses the chamber B and issues from the orifices g in the
cover plate. Oil or other liquid fuel is supplied to chamber C by pipe F and
branches and the inductive action of the jets of steam in traversing chamber B
creates a vacuum therein and causes the liquid fuel to be drawn into and through
the induction chamber whence it issues at the orifices in the cover plate in an
atomized condition along with the steam. Air may also enter 'at the same time by
the central aperture G. The steam and fuel supply pipes would be provided with
suitable cocks or valves to regulate the flow and the steam chamber could be
suppled with a condensed water valve fixed to the pipe H.
In applying the apparatus for the other purposes above referred to, the oil
supply would be replaced by air or whatever gas or fluid it is desired to inject and
in lieu of steam, compressed air might be used in certain cases.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1st An apparatus consisting essentially of an annular induction chamber having
two convergent sets of inlet orifices (for the motive fluid and for the injected fluid
respectively) and one set of outlet orifices in alignment with both the other sets
substantially as shown and described for the purposes specified.
2nd An apparatus for the purposes specified constructed of an annular induction
chamber having inlet a d outlet orifices arranged as specified in combination with
annular supply chambers communicating with and supplying the respective sets of
inlet orifices substantially as shown and described.
3rd The particular construction of apparatus as herein shown and described con-
sisting of an annular casing divided by a chambered partition, into chambers A, B, C
furnished with convergent sets of orifices b, d, and exit orifices g in alignment
therewith and having suitable inlets to the chambers A, C and a central air pas-
sage G, the whole constructed and arranged substantially as shown and described.