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Патент USA US2404263

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@July 16, 1946.
L. F. ‘WILSON ETAL
_ 2,404,263
SEPARATOR FOR BOILER BLOW-OFF PRODUCTS
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Filed Dec. 18, 1944
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2,404,263
Patented July‘ 16, 1946
UNITED STAT
r 2,404,263
, 7 SEPARATOR FOR BOILER BLOWOFF
.
PRODUCTS
Lyndon F. Wilson‘ and Everett A. vPreston, Chi
cago, Ill., vassignors to Wilson Engineering Cor
poration, Chicago, 111., a corporation of Dela
' ware
Application December 18, 1944, Serial-No. 568,663 ‘
3 Claims.
‘ '
(o1. 183--83?)
1 ,
This invention pertains to separators for sep
arating the blown off“ products, consisting princi
pallyof steam and water, from a steam boiler and
constitutes‘ an improvement over the separators
disclosed in prior Patents Nos. 1,966,776, issued
July 17, 1934, and 2,100,095, issued November 23,
1937.
r
’
tion with the accompanying drawing.
Referring to thedrawi-ng,
and locomotive, to relieve them of accumulated
sludge and water contamination detrimental to
e?icient steaming, the blow-o? products are dis
charged approximately at the rate of 150 gallons,
The ?rst rush of \
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i
Fig. 1 is a plan View of a separator embodying '
our invention;
»
In the blowing off of boilers, both‘ stationary; '
or more, of ?uid per ‘minute.
should be readily appreciated as ‘the same 136-1‘
comes-better ‘understood by reference to the fGlw
lowing description when‘ considered in OOHIIGCi-r
I
i
Fig. ‘2 is a sectional View ‘on ‘the line 12-2 of»
Fig. 1'; and
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v,
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V;
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Fig. 3 is an elevation looking toward the ‘left
zit-Fig.1.
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1
v
The separator hereillustratedivis oil-cylindrical;
contour, adapted to be mounted
the top- of a
water with its steam i?ash into the separator,
locomotive ‘boiler forwardly'of the cab, "as innsmeets ‘cold surfaces and even though separated as 15
been’
tratedmade’
in the
orprior’
in any
patents
other torr‘which
‘convenient‘location
reference to
e?ectively as subsequent. delivery when the liquid
is flowing‘ in a smooth spiral downwardly around
which the blow-o? products of a boiler mayrbe
the‘ enclosing walls of the. separator, there is a
conducted. Wh'enused with-a stationary-boiler;
the separator may be suitably supported outside .
brief period of recondensation of steam ?ash
already separated. The consequence is that the 20 the powerhouse to deliver the separatedsteam
condensatetends to ‘carry along with the steam
to atmosphere and the‘ liquid to the sewer. ~> ‘
resulting in the discharge with the ?rst .steam
Referring now ‘to the drawing moreiri detail,‘
it ‘will be‘ observed that the separator consists of‘
flash of more or less hot water.
a cylindrical casing 4 closed'at its bottom'by/ a‘
One. of the purposes of our present invention,
therefore, is to prevent this carry-over of water 25 wall '5 preferably’ upwardly curved. The ‘top or"
the separator includes a dome 6 provided with'a
with the initial steam discharged, from the
centrally located opening ‘I surrounded by’ a de
pending ?ange 8. Secured to the under side‘ of
- At the conclusion of a blow-off the sudden
cessation of the delivery of blow-off products,
the dome is a depending arcuate flange '9 carry-v
resulting from the closing of theblow-off cock, 30 ing a disc Ii disposed substantially parallel with
has heretofore occasioned momentary spilling to
and spaced from the‘ lower‘ edge of the‘ ?ange '8.
The disc carrying ?ange 9 is substantially semi
a greater or less degree of water from the sep
arator out through the steam discharge opening.
circular in contour, so'that it, together with ‘the
disc i I, provides a baffle which obstructs the
Since this water carries solids in solution and
escape, of ?uid through the opening 1 and thereby“
suspension, the e?ect is to foul boiler jackets, cab
contributes to the separation of the steam and
windows and surfaces of following cars. This
spilling is. caused by theaccumulation of circling
water and tends to prevent the.‘ escape of water
through the steam outlet 1. .
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water at the sides of the separator chamber
which cannot immediately escape through the
Uponthe dome 16 is mounted a thimbl'e which
tangential discharge passage by which the sep 40 ‘consistsv of a cylindricalv body I! provided with
an inwardly sloping top [3 having a centralopen
arated water is delivered.v The dropping, so to
speak, of this circulating water as the vortex is
ing [4 aligned with but considerably smaller in
destroyed by reduction of pressure and lost force,
size than the opening 1. A'sleeve l5 depends
produces a splashing which results in the top
from the opening [4 into proximity to the plane
spilling of the water along with the last of the 45 of the opening 1, so that a chamber l 6 is provided
discharged steam, as previously mentioned.
by the thimble, which chamber is in communica
mu?ler...
.
.
I
Another purpose of our invention is to over
tion with the opening 1.
>
come such spilling, which in the present disclosure
The boiler blow-01f products, consisting of
is accomplished by providing an enlarged col
steam and water containing contaminants in
lecting chamber in which the water dropping 60 solution and in suspension, are delivered tangen
from the side walls of the separator may be col
tially into the casing 4 by an intake connection
lected before ultimate delivery, thereby prevent
l1 extending through the wall of the casing into
ing it from splashing and spilling out with the
the separator, as illustrated in Fig. 2, and thread
steam.
ed at its outer end for connection with a pipe
Other objects and advantages of our invention
leading from the blow-01f cock.
4
3
The size, shape, proportion and arrangement
The separated liquid is conveyed from the sep
arator to a point of disposal by a discharge pipe
I8 communicating with the separating chamber
through a collecting box l9, preferably rectan~
‘ of the various parts illustrated and described may
obviously be varied withinconsiderable limitsv
without departing from the essence of our in
vention as de?ned in the following claims.
gular in cross-section, opening tangentially into
the separator chamber to receive the liquid tend
ing to accumulatein the bottom of the chamber.
We claim:
The box I9 is of greater cross-sectional area
than the corresponding area of the discharge pipe .
l8 and is, consequently, able to receiveand col
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1. A separator for separating the?products
blown off from a steamboiler, comprising acy
lindrical shell having a closed bottom wall and
a top wall provided with a large centrally dis-1
lect a volume of water in excess of the capacity
posed steam outlet opening de?ned by an annu- ‘
of the discharge pipe. This structure is, there;v
fore, adapted to accommodate the ?nal separated
water of each blow-off, thereby preventing its
regurgitation and spilling out through the top.
with the steam, as has heretofore occurred when
the discharge pipe communicated directly with
lar depending lip, a thimble rising from said top
the separating chamber.
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In the operation of our improved separator, the
blow-01f steam and contaminated water are dis
wall, consisting of, an upright cylinder, a top
therefor/having a central discharge opening of
smaller area than said underlying shell outlet
opening and a cylindrical sleeve depending from
said thimble opening into proximity to the plane
of the upper edge of said outlet opening, means,
for delivering blown off products tangentially in
20 to said shell, and means for receiving and dis
chargedtangentially into the separating cham-1
charging from said shell the separated ;liquid
ber from the pipe ill. The liquid under cen
products, said means including a discharge pipe
trifugal force clings to the peripheral Wall of the , leading from the lower portion of said shell and
a receiving chamber communicating tangential
‘separator and under the in?uence of gravity spi-v
rals downwardly in ‘the chamber into the collect 25 ly with the interior of the shell and with said
discharge pipe, said chamber being rectangular
ing box [9 and outthrough the discharge pipe
and of greater cross-sectional area than said dis
I8. The steam, because of the centrifugalac
tion upon the heavier water,‘ separates from the
‘ ‘,gharge pipe.
2. A separator for separating the products
water and moves toward the center of the sep
arator and upwardly, so that it passes around 30, blown off from a locomotive, .comprising a cylin
drical upright shell having a closed bottom-and .
the ba?le H and out through the delivery open-v
a top provided with a centrally disposed steam
ing M ‘to atmosphere. During the initial stage
outlet opening, a thimble extending upwardly
of each blow-off, before the metal surfaces be
from said top and consisting of an- upright cyle
come heated, there is some tendency-for the sep-j
inder, a sloping top wall therefor having a smalle
- arated steam to recondense on the cold surfaces
of the structure and to carry over as water spray
er discharge opening than the aforesaid steam
with the steam from the separating chamber.
outlet opening and a cylindrical sleeve depend
The thus condensed liquid particles passing outs
ing from said opening, a discharge pipe, and a
wardly through the opening 1 from theseparat
ing chamber are, as a consequence of centrifugal
action, passed not into the sleeve I5, but around
receiving chamber of greater cross-sectional area
in than the discharge pipe disposed tangentially to
the periphery of'the ?rst mentioned shell‘ancl
the sleeve into the chamber 16 where they are 7' communicating with the interior of said shell‘ and
collectedvand caused to drop back into the sepaf
with said discharge
pipe.
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V,
rating chamber. In this manner initial ?ashing
' 3. A fluid blow-off product separator, compris
‘or carrying over of condensate ‘with the initial .45 ing a cylindrical shell having a closed bottom ,
steam discharge from the separator is prevented.
and a top provided'vvith a central opening, means
When the blow-off cock is closed, thus termig
for delivering blow-off products tangentiallyin-f.
nating the blow-off operation, the ?nal blow;
to said shell, a cylindrical casing extending-up
oil? products under a diminishing pressure lag
wardly from the top of said shell, a downwardly
as they enter the separator and tend to drop to 50 sloping wall extending inwardly from the upper
the bottom of the separating chamber without
endof said casing and provided with a central
following the separator walls as closely as the preq
ly disposed opening of smaller diameter than said
ceding water under greater pressure. This col
shell opening, a sleeve depending from said last
lection of the water in the bottom of the chamj
mentioned opening into close proximity to said
ber has a tendency to cause spilling or ‘splashing
shell
opening, a box communicating with the
of some of the Water upwardly and outwardly
lower portion of said shell through a rectangular
with the ‘discharged steam. ‘The collecting box
l19,'howev'er, of larger cross-sectional area than
the discharge pipe I78, collects and accommodates
opening, and adischarge pipe of less cross-sec
tional area than said box connected to said box‘. '
this?nal rush of water until it can be delivered
by the discharge pipe. In this manner the'spill
ing of the ?nal ‘delivery of a blow-oil is .pre;
vented.
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LYNDON F. , WILSONQT'
EVERETT A. PRESTQN. -'
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