Improvements in Steam Generators and Superheaters.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Steam Generators and Superheaters.
I, WILLIAM WORBY-BEAUMONT of 100 Palace Road Tulse Hill, London,
Civil Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved method of and apparatus for the generation
of steam for motive power purposes. In carrying out my invention I employ
tubular or other suitable form of water containing and heating surfaces connected
through the medium of a loaded or automatically or otherwise adjusting reducing
valve to a second coil or other form of water containing or steam generating and
heating surfaces, the heating surfaces in both these cases forming the envelope of
the water or steam containing tubular or other form of chamber or receptacle.
The first named receptacle is preferably maintained full of water provided by a
pump or other means of supply, the said pump passing the water through a check
valve into the receptacle, the water escaping into the feed tank when the
determined pressure in the first named receptacle is above that fixed by the
loaded valve. The heated water in the first receptacle is controlled in its escape
from this first inentioned receptacle or part of the generator into the second
mentioned part within which it is allowed in part to flash at a lower pressure.into
steam and is for the remaining part evaporated & superheated partly by reduction
in pressure after passing the loaded or adjustable valve or automatic reducing
valve which may be arranged to act in accordance with the consumption and fall
of pressure in the second mentioned receptacle and partly by continued heating
after evaporation. The generator thus constituted may be heated by coal or
other such fuel or may be preferably heated by hydro-carbon burners, the supply
to which is wholly or in part regulated or controlled by the variation of the steam
pressure in the second or vapourising and superbeating receptacle, so that the
generation of steam is automatically adjusted in accordance with the variation in
its cousumption. Both the first and second mentioned receptacles or chambers
may be made in one, two or more segments or sections connected in the usual
ways or by reducing or by check valves. Before passing into the tubular or
otherwise formed first mentioned receptacle the water from the feed pump may
pass into a heating vessel in which any impurities may be deposited and easily
removed. In a modified form of the apparatus the second receptacle may be
further connected to the first receptacle by a suitable passage through which
water not evaporated may be passed by a pump or otherwise back into the first
receptacle with or without the fresh feed water. The water leaving the escape
valve before mentioned may first pass into a vessel which is closed except that
there is a small adjustable hole or valve for the escape from it of the excess water
slowly. When the water passing into this vessel is considerable in quantity
pressure will arise which may be made to operate either a damper or oil fuel
supply, or the vessel may be suspended or pivoted so that its varying weight may
vary its position and thereby actuate controlling apparatus.
Dated this 5th day of February 1896.

page_text: Improvements in Steam Generators and Superheaters.
I, WILLIAM WORBY-BEAUMONT of 22 Outer Temple, 222 Strand London,
and of 100 Palace Road Tulse Hill London, Civil 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
My invention relates to an improved method of and apparatus for the generation
of steam for motive power purposes. In carrying out my invention I employ
tubular form of water containing and heating surfaces connected through the
medium of a loaded or automatically or otherwise adjusting reducing valve to a
second coil or other form of water containing or steam generating and heating
surfaces, the heating surfaces in both these cases forming the envelope of the
water or steam containing tubular or other form of chamber or receptacle. The
first named receptacle is preferably maintained full of water provided by a púmp
or other means of supply, the said pump passing the water through a check valve
into the receptacle, the water escaping into a feed tank when the determined
pressure in the first named receptacle is above that fixed by the loaded valve.
The heated water in the first receptacle is controlled in its escape from this first
mentioned receptacle or part of the generator into the second mentioned part
within which it is allowed in part to flash at a lower pressure into steam aud is
for the remaining part evaporated and superheated partly by reduction in pressure
after passing the loaded or adjustable valve or automatic reducing valve which
may be arranged to act in accordance with the consumption and fall of pressure in
the second mentioned receptacle and partly by continued heating. The generator
thus constituted may be heated by coal or other such fuel or may be preferably
heated by hydro-carbon burners, the supply to which is wholly or in part
regulated or controlled by the variation of the steam pressure in the second or
vapourising and superheating receptacle, so that the generation of steam is auto-
matically adjusted in accordance with the variation in its consumption. Both the
first and second mentioned receptacles or chambers may be made in one, two or
more segments or sections connected in the usual ways or by reducing or by check
valves. Before passing into the tubular or otherwise formed first mentioned
receptacle the water from the feed pump may pass into a heating vessel in which
any impurities may be deposited and easily removed.
My invention may be fully described by reference to the drawings hereunto
attached, in which
Fig. 1 is a vertical section of the generator; Fig. 2 a plan of same, in section
along line od Fig. 1.
Fig. 3 an outside view of the generator with part of the case broken away to
show an oil burning apparatus for heating it and
Fig. 4 is a section of part of the case of the generator showing the arrangement
of firebars, fuel and air supply.
Figs. 5 to 10 are details of connections between the segments of the tubular
receptacles and a reducing valve.
In Fig. 1 the coiled tubular heating surfaces and water containing receptacles
are shown in section along the line a, b of Fig. 2. The first tubular receptacle is
made in three tubular segments marked A, A, B and C the upper part of A
being shown in Fig. 1, in dotted lines, because this upper part is on the half
removed in making the section. The feed water entering at A, Fig. 1 passes down
this segment of the coiled tubular receptacle to the bottom where the segment

page_text: leaves the coil tangentially and passes out through the case K and there enters
at A, the flange U of the connecting piece UV W, Figs. 8. 9. 10 by which it is
united to the segments B, C of the first receptacle. The connection U V W is
shown in detail in Figs. 8, 9, 10 in which Fig. 8 is a back view, Fig. 9 sections on
the lines tt of Fig. 8 and on the liues e d of Fig. 10 which is a front view as seen
also in Fig. 3. From A' the water enters a port g in the piece V as shown by
arrows in Fig. 9 communicating with the tubular segments B. C and thence it
passes upwards in the annular interior of these segments to a reducing valve at
the top of the generator at W X where the segments B. C are connected by the
flanges U U and chamber W and the heated water from them passes through
the reducing valve v into the second receptacle which consists of two coiled
segments us placed within the tubular segments BC and connected through the
medium of the diaphragm d, chamber, valve and chamber e in the reducing
valve connection WiX shown in Figs. 2, 3, 5 6, 7.
Fig. 5 is a front view of the reducing valve and connecting piece and flanges
one half of the cover X in front being removed to show the position of one segment
tube u and the nut by which it is held on the diaphram d. Fig. 6 is a sectional
view on the line w. w of the front view Fig. 5 and on the line y y of the back view
Fig. 7. Fig. 64 is an enlarged view of the valve part of the reducing valve.
The tubular segments wu of the second or steam forming receptacle, pass
entirely through the segments B. C of the first or water heating receptacle and
are connected through the medium of the piece V, Figs. 8. 9. 10 to which they
are fixed and by the chamber & shown in Fig. 9 & by dotted lines in Fig. 10.
From the chamber 4, Fig. 9, the steam generated in the coiled tubes u, u
escapes into the pipe Z by which it is conducted to the steam engine or
other use.
It will be seen then that the feed water which is forced into the first receptacle
at A through a check and escape valve, passes into and down the coil A, where
it is first heated, thence at A' it enters the segments B. C of the water receptacle
through the medium of the chamber 2 in the connecting piece V Fig. 9 and thence
travels upward in the aunular space between the water heating and receiving
tubes B. C and the steam generating tubes us to the reducing valve at W. X
Figs. 2. 3 and 5. 6. 7. This valve is adjusted by the set screw shown in Fig. 6
which bears on the springs so that a pre-determined water pressure say 500 lbs.
per square inch in the receptacle A. B. C, shall only be sufficient to move or
deflect the diaphram d d and thereby move the valve and allow water to escape
into the second receptacle u. u, when the steam pressure in uu falls below a pre-
determined pressure say 250 lbs. per square inch. Thus so long as steam at this
pressure is maintained no water from the first receptacle passes into the second
and more steam is not generated until some of that already made is taken off.
The firet receptacle will preferably be maintained full of water by the feed pump
which will force the water through a check valve and an ordinary escape to let
water pass back into a feed tank when the desired pressure of say 500 lbs. per
square inch in the first receptacle is reached. The steam generated in the second
receptacle u u, partly by the water flashing into steam in falling from the
temperature due to the higher pressure to that of the lower and partly by the
heat transmitted through the water to the tubes u, u, will be superheated by
the difference between the temperature of the water, in B and C surrounding
it and that due to the temperature of steam at say, for instance, 250 lbs. per
square inch. In the connecting piece and reducing valve, Figs. 5. 6. 7, the
water passes in the direction shown by the arrows from the tubes of the first
receptacle through the centre of the valve v and holes in the stem thereof as shown
to the chamber e and thence to the second receptacle or steam generating
part u, u.
When a group of hydro-carbon burners are employed to heat the generator as
indicated in Fig. 3, the air supply for combustion is chiefly admitted down the
central refractory tube M supported by the refractory plate N which covers the

page_text: generator and rests upon the projections T of the refractory lining J within
the casing. K. The lining J is supported by the ring L. At O is a hand hole and
door Y for access to the burners which may be say eight in number supplied as to
four with one pipe and as to the other four by another pipe so that one set, the
upper set may be turned off when less heat is required and will reignite from the
flame of the lower set. The burners are arranged on a central boss so that they
may be turned round for inspection. The products of combustion pass upwards
as indicated by the arrows, finding their way amongst the coiled tubes and out
through the spaces between the supporting pieces T T into the annular space S
to the atmosphere. Into the annular space S¹ through pipes connected to the
upper part as at S", air is admitted from a fan such as the delivery from a fan
used to cool the surfaces of an air condenser to produce an induced draught.
Fig. 4 is a section of the lower part of the case, the refractory lining and the
central refractory tube of the generator as arranged when coal, coke or other
solid fuel is employed. The firebars L¹ rest upon the ring L and the ash pan k
is fitted with an ash pan adjustable as to position by means of a supporting chain
as shown and supported at s, by means of a hinge or other suitable means.
for supporting combustion or partial combustion is admitted by one or more bell
mouthed tubes indicated at f open at the bell mouth into which air enters carried
in by a jet of steam from a steam tube h. Air may also or instead be admitted
at the ash pan. Air for the combustion of the gases arising from the fuel is
admitted by holes Y covered more or less by a cover ring Z', holes in which may
be placed opposite the holes Y or opposite the spaces between them or inter-
mediately at O' is a doorway for access to the furnace. The fuel is admitted at
the top of the tube M and it forms a heap on the fire bars, the tube M being kept
full of fuel. The products of combustion and heated or burning gases pass
upward in the annular space between the tube J and the case K and out as
described with reference to Figs. 1. 2. 3. The furnace as shown may be used as
an ordinary furnace or as a gas producing furnace.
Air
According to a modification of the arrangement of the segments forming the
first and second or water and steam receptacles, the segments of the second
receptacle namely the coils u, u are not placed inside the coils B. C but may be
continuations of these coils with the reducing valve between the water and steam
coils as described.
Having now particularly described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. A steam generator constructed and operating substantially as described with
reference to the drawings hereunto attached.
2. The combined reducing valve and water and steam tube connecting device
constructed and operating substantially as described with reference to Figs. 1. 2.
3. 5. 6. 6 7 of the drawings hereto.
3. The water and steam tube connecting device constructed substantially as
described with reference to Figs. 2. 3. 8. 9 & 10 of the drawings hereto.
4. In a steam generator the combination of a high pressure water containing
part connected by a reducing valve with a lower pressure steam containing and
evaporating part and operating substantially as herein described.
Dated this 2nd day of November 1896.
W. WORBY BEAUMONT.