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Патент USA US2406399

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Aug. 27,1946.
E. w. POTTMEYER '
- 2,406,399‘
COOLING APPARATUS .FOR FURNACE PORTS
Filed May 2,‘ 1945
2 Sheets-Sheet l
25 /24 /25
E355
INVENTOR
fo'waro’?lpoffmeyer'
-.
BY
‘
.
ATTORNEYS
Aug. 27, 1946‘.
'
E_ w, POTTMEYER 4
‘ 2,406,399
' COOLING APPARATUS. FOR FURNACE PORTS
Filled May 2; 1945
2 Sheets-Sheet 2
INVENTOR
_
'
fo’waro’lllpoffmeyer'
BY
.
MXW
ATTORNEYS
‘
Patented Aug. 27! 1946
2,406,399‘
UNITED‘ STATES PATENT _ ‘ oFFics
COOLING APPARATUS FOR FURNACE
PORTS
Edward W. Pottmeyer, Pittsburgh, Pa., assignor to
Blaw-Knox Company,‘ Pittsburgh, Pa., a cor
poration of New Jersey
Application May 2, 1945, Serial Nq.'5e1,619~
9 Claims. (01. 1.22-6.55‘
1
Figure 8 is a partial elevation of the discharge
This invention relates to ‘a furnace port cooler
and, in particular, to a cooler for the port of a
‘regenerative furnace such as the conventional
end of a ?ushing pipe; and
-
Figure 9 is an end view thereof.
open-hearth furnace.
It is an object of my invention to provide a port "
cooler characterized by improved circulation of
cooling water therethrough and the elimination
of clogging resulting from the accumulation of
sediment or sludge in narrow passages, particu
larly between the spaced walls of the cooler and
the outlet passages extending from the innerend
of the cooler to the outer end. I also provide a
cooler having an outlet passage between the 'walls
thereof with suf?cient sectional area to provide
a substantial ?ow even under the rather limit- ‘'
ed pressure head available in port coolers as us
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'
‘
Referring now in detail to the drawings,’ the
cooler of my invention comprises a water jacket
IU of arch section including spaced inner and
outer walls I l and 12, respectively. The cooler
is fabricated from steel plate by welding. It is
installed in a port I3 defined‘ by brick walls adapt
ed to deliver a mixture of preheated air and fuel
to the combustion space within a furnace such
as the ordinary open hearth furnace. The cooler
has a shape conforming to the port, i. e.,'- it slopes
downwardly toward its inner ‘end. A reservoir
in. the form of a box l4 extends upwardly above
the-outer end of the‘ cooler and is adapted to be
supplied with‘ water from any convenient. source.
The reservoir, of course, communicates with the
In a preferred embodiment, the port cooler of
space between the walls II and I2. A water level
my invention comprises a water jacket of arch
section having spaced inner and outer walls withl 20 is maintained in the‘reservoir at approximately
the upper edge of a partition 15. Excess water
an outlet passage therebetween extending from ‘
?ows over the “partition into an outlet'trough
adjacent the inner end of the cooler to the outer
l6 having drain connections".
7 ..
end, the passage having a generally rectangular
Anoutlet ‘passage l8 extends from a point ad
section and a width several times its depth, and
the depth being only approximately one-half the 25 jacent the inner end of the cooler to‘the outer
end thereof where it communicates with the
distance between the inner and outer walls. Con
trough IS. The passage I8 is preferably formed
veniently, the passage is formed by achannel
by a channel having its ?anges welded to the. in-'
having its ?anges welded to one of the \walls,
ner wall ll. ‘As shown in Figures 2, 3 and 4, the
preferably the inner wall. The outlet pipe pref
erably has branches extending downwardly and 30 channel extends along the ridge orhighest por
tion of the inner wall II. The passage [8 has a
laterally adjacent the inner end of the cooler to
rectangular section and a width several times
a?ord good circulation adjacent the inner end of
its depth. The depth, furthermore, is only ap
the cooler which, of course, is subjected to the
proximately one-half the distance between the
highest temperature.
‘
'
,
For a complete understanding of the invention, 35 walls II and 12 so that it does not obstruct free
?ow- of water through the spacer-between the
reference is made to the accompanying draw
walls." A vent or surge pipe l9 extends upwardly
ings illustrating the present preferred embodi
from'the passage l8 through the reservoir I4
ment and the following detailed description. In
above the upper edge of-the. partition [5.
the drawings,
The passage l8 preferably has a number of
Figure 1 is a side elevation of my port cooler,
branches 20, 2| and 22 extending laterally. and
partly broken away and partly in ‘section, show
downwardly from its inner end. These passages
ing the outline of the brick work de?ning the port
may conveniently be de?ned by channels welded
proper in chain lines;
to the inner wall of the jacket in the same man
Figure 2 is a plan view of the cooler;
'
ner as, that forming the passage I8. The chan
ually constructed.
Figure 3 is an end elevation such as would be
nels forming the branches 20 and 2|, as shown, '
seen by looking from the right in Figure 1;
are curved to conform to the'a-rch shape of the
Figure 4 is a transverse section taken along the
cooler. The branches, like the mainrpassage ill,
plane of line IV-—IV of Figure 1;
have rectangular sections and a width several
Figure 5 is a partial longitudinal section taken 50 times their depth. Their depth, furthermore, is
along the plane of line V—V of Figure 3;
only about one-half the spacing between the
Figure 6 is a partial section taken along the
walls II and I2. There is thus substantially no
plane of line VI-V£ of Figure 5;
possibility of accumulation of scale or other sed
iment between the outer wall and the channels
Figure '7 is a partial section taken along the
plane of line VII-VII of Figure 1;
.
55
defining the passages, sumcient to interfere se
2,406,399
3
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4
.
riously with circulation of Water through the
'
The course of ‘circulation through the cooler is ‘
downwardly from the reservoir I4 along the sides
and top of the cooler toward the inner end there
of from which the water ?ows into the branches
20, 2! and 22 and‘ thence throughv the main outlet
passage -l'8'~to the outlet trough l6. Ba?ies [8a
in the trough [6 on opposite sides of the passage
[8 insure that the latter is kept. ?lled to the ex
treme upper end.
I claim:
I
l. A furnace port cooler comprising an elonq
gated Water jacket of arch section including
spaced inner and outer walls, and means de?ning
an outlet passage extending longitudinally of the
cooler from adjacent the inner end thereof to the
outer end, said passage being generally rectangu
larin section and having a depthapproximately
jacket.
one-half the distance between said walls.
,10 .
.
2. A furnace port cooler comprising an elon
gated water jacket of arch section including
spaced inner and outer walls, and a relatively
wide ?at outlet passage extending along the ridge
Sludge, scale or other sediment'a‘ccumulating ,_
in the jacket falls freely to the bottom of the “
of the inner wall from adjacent the inner end of
‘ sides thereof which, have ‘inwardly extending
.
1 ?anges 23. Flushing pipes 24 extend into these 15 the cooler to the outer end thereof. 3. Thelappa'ratus de?ned by claim 1 character
?anges and are supported on brackets 25. Slots
ized by said passage having a plurality of branches
26 at the inner ends. of .the pipes discharge jets
extending therefrom.
'
of flushing water’ when the pipes are ‘connected 1
4.,A furnace port cooler comprising‘ an elon
to a suitable source thereof, whereby accum‘ue ‘1'
1 lated ‘sediment may be washed out through holes 20 gated water jacket of arch section including
spaced inner and outer walls, and a relatively
‘ Hand 28 in the outer end of the cooler. These
wide ?at outlet passage between said Walls from
adjacent the inner end of the cooler to the outer 7
} holes, of course, are closed by suitable plugs be
‘
tween successive flushings.
'
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'
.It will be apparent from the foregoing explan
end
thereof.
_
_
,
.
.
.
5. A furnace port cooler comprising an elon—
‘ ation that the invention is characterized by nu-4 .25
gated water jacket of arch section including
merous advantages over port coolers as previous
spaced inner and outer walls, and means de?ning ' .
ly constructed. In the ?rst place, the shape and
an outlet passage extending longitudinally of the
cooler from adjacent the inner end thereof to the
outer end, said passage being generally rectangu
1 disposition of the outlet passage and its branches;
1 as already indicated, are such that they do not
.
facilitate the accumulation of sedimentjbetween so
lar in section and having branches‘ extending
‘ them and the outer. wall: so as to interfere with
' ‘
circulation of the coolingrrwater.
The , arrange- ‘
therefrom.
.
.
.
"
"
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,
6. A furnace port cooler comprising'anelon
1 ment of the outlet passage and its branches,
gated water jacket ~ of arch section including
1 furthermore, is also such as to create an im- '
1 proved circulation of» cooling water. This results .35 spaced inner and outer walls, and a vchannel be
tween said Walls having its ?anges weldeditoone
‘ partly from‘the thermo-siphon actioncaused'by
. of them and extending from adjacent the inner
‘ the locationjof the- passage 18, at; the ridgeiof
1 the inner wall .and from its upward slope.
end, of the cooler to the outer end therebyr'proe
viding an outlet passage of rectangular section
1' the'bottom of the sides'fromwhich it may be ‘1.40 having a' width several times its depth.
‘ sediment formed in the COOleris free to fall to
easily removed by periodic ?ushing.~ The en
7 j trances for water returning through the outlet
1 passage i8, 1. ‘e., the lower endsof the branches
i 20, 2| and 22,';ar,e located closely' adjacent’ the '
*7. The apparatusde?ned by claim ?jc'harac
terized by branch channels extending from'said
.
?rst-mentioned channel, said branch channels
also having their ?anges welded to one of said
',
‘
,
‘ L I
inner end: of the cooler whichis subjected,‘ to .45 walls.
‘ 8. A furnace port cooler comprising an elon
the highest temperature. .Atvthe same time,_the
gated wvater jacket of arch section including
1 .sectional area. of .the outlet passage and its ‘
spaced inner and outer walls, and’ari inverted.
‘ branches is sufficient to maintain the ?ow of a _
substantial volume of .water even under the rela- .
channel ‘extending along the ridge of'ithe inner
j~ tively' low head available in the-reservoir. l4,
.50 wall from_-adjacent the inner end thereofftoithe
' outer end, the flanges of thejcha‘nnelbeing welded
- It is to be noted that while the branches 20, 2|
to the inner Wall whereby the’ channel de?nes an
and 22 are desirable, they may not be necessary
outlet passage.
7
‘r
‘ .
V
_ I
.
in all cases.’ On the other'hand, additional plate
9. The apparatus'deflned by claim ‘8 charac
‘ eral branches from the main'outlet passage, l8 '
; may be employed,'if.desired. These and other 55 terized by branch channels 'extendiing'frornsaid
‘ similar changes in the details of the. construc
‘ tion disclosed may,rof course, be made without
‘ departing from the spirit of the invention or the
scope of the appended claims.
?rst-mentioned, channel, said branch‘ channels '
also having their ?anges welded to said" inner
Wall.
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EDWARD W. PQTTMEYER‘.
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