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Патент USA US2412115

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Dec. 3, 1946. I
J. P. BADENHAUSEN
2,412,! 15
5TB“, GBRBRATOR
Filed Iaréh 9. 1945
2 She'ets-Shaet 1
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INVENTOR._ j
JOHN PHILLIPS BADENHAUSEN
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ATTORNEY
D°¢-3,'1946-
J.VP.VIBADENHIAUSEN _
2,412,115- I
smut GENERATOR
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JOHN PHILLI P5 BAPENH AUSVEN.
BY (5-110
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ATTORNEY
Patented Dec. 3, 1946 _
‘ 2,412,115 v
UNITED STATES. PATENT; OFFICE‘
STEAM GENERATOR
John Phillips Badenhausen, Philadelphia, Pa},
assignor of one-half to Bayard Badenhausen, .
Philadelphia, Pa.
Application March 9, 1945, Serial No. 581,785
8 claims.‘ (01. 1227-255) 4
1
This invention relates to steam generators, and
more particularly to steam generators adapted
for burning pulverized anthracite coal, anthracite
culm, and other fuels.
.
It is the principal object of the present inven
tion to provide a steam generator with improved
means for introduction of air for supporting com
bustion.
It is a further ‘object of the present invention
to provide improved apparatus for introducing
air for the combustion of fuel for steam genera
tions l8 and I9.
tion.
'
'
It is a further object ‘of the present invention
‘to provide an improved arch construction with
2
and i3 lower water headers 15 and I6 are pro
videdextending from front to rear and with their
longitudinal axes parallel to the axis of the steam
and water drum l4. Between the front wall l0
and the rear wall ll an'upwardly extending ver
tical wall or ba?le vl'l is provided, preferably ex
tending from the side wall l2 to the side wall I3.
The upper ends of the side walls I2 and I3 are
preferably connected to the top wall sections I8
10 and I 9 and a central top wall section 20, covering
the drum l4 extends between the top wall sec
.
‘
_
The front wall 10 is preferably provided with
a fuel inlet opening 2| for the introduction of
15 fuel in any desired manner. The space to'the
rear of the front wall ill, in front of the wall orv
through.
~
ba?ie I‘! and between the side walls 42 and I3
It is a further object of the present invention
air for supporting combustion introduced there
preferably constitutes a combustion chamber.
to provide apparatus for burning fuel for steam
A grate 22, extending rearwardly from the front
generation which will be adequately protected
from the high temperature of the combustion. 20 wall l0'to the wall or baffle ll, may be provided
for retaining a bed of burning fuel at the lower
,
part of the combustion chamber. The grate 22
Other objects of the invention will be apparent
preferably serves as a. closed hearth and the
from the speci?cation and claims.
space below the grate 22‘ is preferably closed and
rI'he natureand characteristic features of the
invention will be more readily understood from 25 need not be provided with any air supply. The
side walls 12 and it’ of the combustion chamber
the following description, taken in connection
are preferably lined with banks of spaced steam '
with the accompanying drawings forming part
generating riser tubes 23 which extend upwardly
hereof, in which:
I ‘
along the interior of the side walls l2 and I3 from
Figure 1 is a vertical transverse sectional view
taken approximately on the line |--| of— Fig. 2; 30 the lower water headers l5 and 16 to the steam
and water drum M. A bank of spaced steam
Fig. 2 is a vertical central sectional view taken
generating riser tubes 24 is provided, the tubes
approximately on. the line 2-2 of Fig. 1;
24 extending upwardly from the headers l5 along
Fig. 3 is an enlarged fragmentary view partly
the interior of the side wall l2, and then sub
in plan and partly in horizontal section illus
trating a preferred construction in accordance 85 stantially horizontally and transversely across to
the other side wall l3, then upwardly along'the
with the present invention; and
interior of the wall I3 and beneath the top wall
Fig. 4 is an- enlarged fragmentary sectional
section I! to the steam and water drum H.
view taken approximately on the line 4-4 of
A bank of spaced steam generating riser tubes
It should, of course, be understood that the 40 25 is provided, the tubes 25 extending upwardly
-,from the headers is ‘along the interior of the
description and drawings herein are illustrative
side wall l3 and then substantially horizontally
merely, and that various modi?cations and
and
transversely across to the other side wall l2,
changes may be made in the structure disclosed
:without departing from the spirit of the inven 45 then upwardly along the interior of the wall l2
and beneath the top wall section l8 to-the steam
tion.
_
Referring more particularly to the drawings, ' . and water drum I4.
The substantially horizontal portions of the
a steam generator of a particular type is illus
tubes 24 and 25 serve as supports for an arch
trated for purposes of explanation of the inven
30 illustrated in more detail in Figs. 3 and ‘l.v I
tion. The steam generator shown includes a
vertical front wall ill, a vertical .'rear wall H and 60 The arch 30 preferably consists of a plurality of
inverted Y-shaped elements 3| of refractory ma
vertical'side walls l2 and 13. An upper horizontal
terial. The elements 3| have upwardly extend
steam and water drum II is provided, extending
ing legs 12 for separating the space therebetween
rearwardly from the front wall I0 am. with its
into a plurality of transversely extending com
longitudinal axis parallel to the side walls l2
and I3. At the lower part of the side walls I! 65 partments 33. The elements 3| are bifurcated
of the fuel..
Fig.
3.
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2,4123 1(5
_
,
,
4
sponding lower portion, and refractory block
3
at the lower portions so as to rest upon and be
supported by alternate horizontal tube portions,
members closing the space between said trans
'their proper'position without the necessity for
said blocks having openings for the delivery of
verse tuberportions, certain of said block members _
such as the horizontal portions ‘of the tubes 24.
having interior air compartment separating por
.The elements 3| have downwardly extending legs
tions and certain of said block members having.
34 which extend below the horizontal portions
openings in communication with said air com
of the tubes 24.
The upper faces .of the legs 32 are preferably . partments for the delivery of air for combustion
of the fuel on said bottom wall.
connected by cover plates 35 of refractory mate?
2. In a steam generator, 8. bottom wall, an up
rial. The cover plates 35 preferably have hori
zontal portions 46 for engagement with the upper 10 per steam and water drum, lower water headers,
‘banks of steam generating tubes each having a
faces of legs 32 and vertical portions 41 for en
transverse portion extending substantiallyhori
gagement with the vertical faces of the legs 32
zontaily intermediate said drum and said head
at the top thereof. The alternate horizontal tube
portions, such as the horizontal portions of the . ers, each of said tubes having ‘an upper portion
tubes 25, haverefractory spacer blocks 36 mount 15 extending upwardly and into communication
with said drum, and refractory blocks closing the
ed thereon. The blocks 36 have rdownwardly
space between said transverse tube portions and
extending portions 31 and horizontally extending,
supported by said transverse tube portions, re
portions 38. The spacer blocks'36 have vertical
fractory blocks spaced above said first mentioned
side faces 36a for engagement with vertical side
faces 34a of‘the block elements 3‘. ‘The refrac 20 blocks, certain of said blocks having wall portions
for separating the space between said blocks into
tory spacer blocks 36, when in position, serve, to
a plurality of air compartments, and certain of
space the elements 3| and retain the same in
any other fastening structure.
. ~
air for combustion of the. fuel on said bottom wall.
_
Each of the spacer blocks 36 is provided, at the 25
horizontal portion 38 thereof, with openings 39
for the downward delivery of air from the‘com
partments 33 to the fuel on the grate 22. The
number and sizes of the openings 33 may be
varied in accordance with the air requirements 3,0
for the burning of the particular fuel employed,
the openings 39 being provided in sumcient num
her, and of sufficient size,‘ to provide all the air
required for the combustion of the fuel on the‘
grate 22. Air is supplied to thecompartments 33
by air ducts 40.‘
3; In a steam generator, side walls, a bottom
wall, an upper longitudinally extending steam ,
and water drum, spaced lower headers extending
parallel to said drum, banks of tubes each having
a lower portion extending upwardly from one of
said headers along a side wall and having a trans;
verse portion extending substantially horizontally
intermediate said drum and said headers, each
of said tubes having an upper portion extending >
upwardly and into communication with said
drum, each of said upper portions being respec
tively disposed on the opposite“ side from the
'
corresponding ‘lower portion, refractory blocks
‘The mode of operation will, it is thought, be
spanning the space between said transverse por
clear from the foregoing, but it may be noted that
the fuel is supplied through the fuel inlet opening
tions and supported by said transverse portions
combustionpthrough, the ducts 40 to the compart
ments 33 and from the compartments 33 down
wardly through the openings 39. The air for
having wall portions for separating the space be
tween said blocks into a plurality of air compart
ments, the lower blocks having openings for the.
-' delivery of air for combustion of fuel on the bot
2| and delivered to and distributed on the grate 40 of said tubes, and refractory blocks spaced above
said first mentioned blocks, certain of said blocks
,22 in any desired manner. Air is supplied for
combustion is thus directed onto the fuel on the
grate 22. The fuel is burned on the grate 22 and
the burning continues as the‘ hot gases of com
tom wall.
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4. In a steam: generator, a front wall having a_
fuel inlet opening, spaced side walls, a grate at
the lower part of said side walls and extending
bustion pass around the front of the arch 30 and ,
across the top thereof. The heat released by the
therebetween, an upper steam and water drum,
combustion is effective for generating steam in .
the banks of wall tubes 23 and in the tubes of >
steaml generating tubes connected to said drum
and each having a transverse portion extending
the banks of tubes 24 and 25. The steam rises
in the tubes 23, 24 and 25 and is delivered thereby
to the steam and water drum I4.
The air moving in the compartments 33 pre
vents the overheating of the cover plates," as the
hot gases of combustion pass thereover. The
substantially horizontally below said drum and
above said grate, and an arch above said grate
comprising spaced refractory blocks extending
between said side walls and supported by said
transverse tube portions, refractory blocks be-.
tween said ?rst mentioned blocks and supported
horizontal sections of the tubes 24 and 25, in
by said transverse tube portions, certain of said
addition to their function of generating steam,
also support the arch 30, and aid in cooling the 60 refractory blocks having wall portions and cer
tain of said refractory blocks having air delivery
arch 30 thereby preventing the same from being
openings for supplying the air for. burning the‘
overheated.
I claim:
fuel on the grate, and refractory blocks connect- ‘
, ‘_
ing ‘said wall portions for providing air compart
bottom wall for receiving fuel for combustion, an 65 ments in communication ‘with said air’ delivery
1. In a steam generator, side walls, a closed
openings.
upper steam and water drum, lower water head;
ers, banks of steam generating tubes each having
a lower portion extending upwardly from one of
said headers along a side wall and having a trans
I.
5. In a steam generator, a front wall having-a I ‘
fuel inlet opening, spaced side walls, a grate at‘
the lower part of said side walls and extending
verse portion extending substantially horizontally 70 therebetween, an upper steam and water drum,
' intermediate said drum and said headers, each of _
said tubes having an upper portion extending up-_
substantially‘ horizontally below said drum and . '
wardly and into communication with said. drum, ‘
above said grate, and an arch above said grate
each of said upper portions being respectively
disposed- on the opposite side from the corre
steam generating tubes connected to said drum
and each having a transverse portion extending
(5
comprising spaced refractory‘ blocks in engage
2,412,115
ment with said transverse tube portions, refrac? ’
and water compartment, and refractory members
tory blocks between and in engagement with said
?rst mentioned blocks and in engagement with
said transverse tube portions, certain of said re
carried by said transverse tube portions and pro
fractory blocks having vertically disposed wall
portions and certain of said refractory blocks
having air delivery openings for supplying the air
for burning the fuel on the grate, and refractory
' ' blocks connecting said wall portions for providing
air compartments in communication with said
air delivery openings.
_
6. In a steam generator, a front wall ‘having a
viding an arch, said refractory members compris- ‘
ing spaced inverted Y-shaped blocks in engage
ment, with and supported by said transverse tube
portions and extending thereabove, spacer blocks
between said first mentioned blocks, the upwardly
extending portions of said ?rst mentioned blocks
constituting vertically disposed wall portions,
certain of said blocks having downwardly dis
posed air delivery openings for supplying air for,
combustion, and refractory blocks connecting the
upper ends of said wall portions and providing air
fuel inlet opening, spaced side walls, a grate at
compartments in communication with said air
the lower part of saidside walls and extending
,
therebetween, an upper steam and water drum, 15 delivery openings. _
- 8. In a steam generator, a bottom wall,'an up’
steam generating tubes connected to said drum
per steam and water compartment, banks of
v and each having a transverse portion extending '
steam generating tubes each having a transverse
substantially horizontally below said drum and
portion extending substantially horizontally be‘
above said grate, and an arch above said grate
comprising spaced refractory blocks extending 20 low said steam and water compartment, each of
said tubes having an upper portion extending up
between said side walls and supported by said
wardly and in communication ‘with said steam
transverse tube portions, refractory blocks be
and water compartment, and refractory members
tween said ?rst mentioned blocks supported by
carried by said transverse tube portions and pro
said transverse tube portions and in engagement
with said tube portions and said other blocks, 25 viding an arch, said refractory'members compris
ing spaced inverted Y-shaped blocks in engage
certain of said refractory blocks having vertically
ment with and supported by said transverse tube disposed wall portions and certain of said re
portions and extending thereabove, inverted U
' fractory blocks having downwardly disposed air
shaped blocks between said first mentioned blocks
delivery openings for burning the fuel on the
grate, and refractory blocks connecting the ends so and in engagement with said tube portions and
said other blocks, the upwardly extending por
of said wall portions for providing air compart
tions of said ?rst‘ mentioned blocks constituting
ments in communication with said air delivery
vertically disposed wall portions, certain of said
blocks having downwardly disposed air delivery
per steam and water compartment, banks of 35 openings for supplying air for combustion, and
openings.
,
_
7. In a steam generator, a bottom wall, an up
steam generating tubes each having a transverse
portion extending substantially horizontally be
low said steam and water compartment, each of
said tubes having an upper portion extending up‘
wardly and in communication with said steam
refractory blocks connecting the upper. ends of
said wall portions and providing air compart
ments in communication with said air delivery
openings.
I
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JOHN PHILLIPS BADENHAUSEN.
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