close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2107815

код для вставки
Feb. 8, 1938. _
5 v. z. CARACRISTI
‘
2,107,815
'LOCOMOTIVE SUPERHEATER
Filed Nov. 3, 1956
2 Sheets-Sheet 2
INVENTOR
h'ggmw Z ['aramisiz'
ATTO R N EY
' Patented Feh. 8, 1.938‘
2,107,815
JUNIT-EDSTATES PATENT OFFICE
I 'mcomenilol’ifmmm
' "Virginius Z. CaracristhBl-onxville, N. Y., assignor
to The superheater Company, New York,
N. Y.
’ Application November 3, 1936,‘ Serial No. 108,944
7 Claims. (01. 122-481)
The‘ present invention relates to superheaters,
: and-particularly to an improved sup'erheatercon
structicn adapted to be mounted in the combus- ‘
tion chamber of a locomotiveboiler. This appli
cation‘ is. a continuation in part of my co-pend
chamber I3 and ?re box I2.
ing application, Serial No. 37,275, ?led August 12,
v19,35.
‘
; A feature of the present invention is that the
j heat absorbing elements of the superheater ex~
m ‘tend transversely of a locomotive combustion
.chamber
>
and areconnected to inlet andoutlet ‘
‘~ headers which are located exteriorly oi‘. water cir
~ culating tubes that line the side walls of the
combustion chamber.
'
?re box and combustion chamber. The use of
peratures along the ?re box and combustion
chamber and also facilitates cleaning of these
tubes.
A series of ‘small pipes 42, having their upper
. tion disclosed herein is that any of its tubes may
readily be. cleaned without dismounting it from
,
’
‘
The side walls of the ?re box and combustion
chamber are lined with closely spaced water cir
culating tubes 2| connected at their lower ends
into the drums 20 and at their upper ends into
individual headers 22 (Fig. 3) which in turn are
connected to the steam and water drum in by
tubes 23 extending partially across the top- of the O
' individual headers provides for unequal expansion
' or contraction of these tubes due to varying tem
'
f5. j ‘A: second ‘feature of- the superheater construc
the locomotive.
ples l8 connect the lower side portions of bar
rel l4 to a pair of water drums 20 disposed along
and outwardly of the lower sides of combustion
'
;.Other features‘ and. advantages of the inven
~_'tion‘will become apparent upon consideration of
sides within the drum Ill cut away, conducts
the following detailed. description and appended steam to dry pipes 43 which supply the inlet head
claims when read in conjunction with the ac
j companying drawings in which:
7
Fig. l is a longitudinal sectional view of a loco
~_ motive boiler showing the superheater’ of the
‘f , present invention applied‘thereto;
»
'
'
; Fig. 2.5‘ is a horizontalsectional viewon the line
'2.-—.2inFig.l;~.
.
w'
'7
'
I , - :Fig. 3 is a transverse sectional view on the line
'
353 in Fig.1;
.
.
'
1 Fig. 4 is a top plan view on an enlarged scale
and shows the construction of the superheater
units;
7
r
Fig. 5 is an‘ enlarged. side elevational view
showingthe manner in which the‘superheater
units are arranged with respect toeach other;
,
Fig. 6 is an enlarged'scale view, partly broken
away, and shows the construction of a section of
a superheater unit at each end thereof, the View
4-11)) [being along the line 6-—6 in Fig. 4; '
>
7
Fig.7 is a sectional view on the line 1-’! in Fig.
‘
6-; and
.
'
'
1
..
‘ Fig; 8 is a sectional view on the line 8-8 in
Fig. 6.
a
‘
ers for superheater units located in combustion 20
chamber [3. The headers 44 are disposed verti
cally outside the wall tubes 2! at each side of the
combustion chamber and the heat absorbing por
tions of the superheater units 46 extend trans~
versely of the combustion chamber, projecting
IO Cl
from the latter at their ends between more widely
spaced wall tubes 2|. The units that connect the
inlet header 44 at either side of the boiler to the
outlet header 4'! at the same" side thereof are .
nested or intercalated longitudinally of the cham~
ber I3 with those connected to the headers at the
other side of the chamber, as shown in Figs. 2 and
5.. O
4. The superheater outlet headers are also dis
posed vertically outside the wall tubes 2! and are
connected to conduits 48a extending forwardly
along the sides of the locomotive to the throttle
(not shown).
The superheater 45 is protected by a screen
comprising staggered riser tubes 5| connecting at
their lower ends into a transverse header 52
communicating with drums 29 and also connected
radially into drum. ID at their upper ends.
A
dry pipe 53 receiving steam from drum I 0 through
pipes 54, similar to pipes 42, supplies saturated 4.
steam to superheater elements 55 disposed within
the
lines of barrel l4, the superheated steam from
combustion chamber l3 of the locomotive. Drum,
these units mixing with that from the units in the
I0 extends partly over a water barrel l4 and com
I at)‘; municates with the upper central portion of the
. latter I through several large nipples l5, one of
I
.
I
Hwhich'is shown in Fig. 1. The water barrel I4
isprovided in usual manner with ?re tubes and
?ues connected between the back sheet {6 and a
m-front' sheetwhich is nots'hown. Other large nip-i
combustion chamber.
The superheater arrangement described above
01 O
An
improved form of construction for the units of
the superheater is illustrated in Figs. 4 to 8. A
is as disclosed in my aforesaid application.
> plurality of superimposed units connect an inlet
header 44- at one side of the superheater to the
2,107,815
2
cated within the combustion chamber of a 1000
outlet header t'l at the same side thereof and
extend in loop form back, and forth across the
combustion chamber. As mentioned above, units
d8 connected to headers at one side are inter
calated between the looped portions of units 49
connected at ‘their ends to the headers at the
other side of the combustion chamber. Each of
the units ‘it, til is divided into a plurality of
sections 5t, 55 connectedfor continuous steam
flow by auxiliary headers or coupling members 52,
53. Each section, as 5i), comprises two spaced
pairs of parallelly extending tubes, the tubes 54
and 55 of one pair being vertically aligned and
comprising an inlet section. The tubes 58 and
6B of the other pair are similarly aligned and com
prise an outlet section. Atjone end the tubes of
each pair are joined by an integrally formed
breeches piece
64% to each other and to a
single tube length 66, 63 projecting between the
20 circulating tubes 25 and received at its outer end
in the hollow coupling member 52 which provide
for continuous steam flow through contiguous
sections of a unit. The inlet branch 54, 56 or"
the ?rst section of a unit and the outlet branch
53, til of its last section communicates respec
tively with the inlet and outlet headers 44 and 4?
respectively. The coupling member 52 is formed
motive boiler. At the same time any of thetubes
comprising the superheater may be individually
cleaned because convenient access is afforded
n the coupling members 52, 53 and all of the latter
may be reached by removing the outer casing
plates 9!], Fig‘. 2. Furthermore, whenever any
tube requires repair or replacement it is not
necessary to remove the entire unit but only the 110)
section of which the particular tube forms a part,
the section being withdrawn between tubes 2!
> after disconnecting it from the coupling members
joining it to the preceding and following sections
of the unit.
a heat absorbing unit connected between. said
headers and divided into a plurality of sections
each having a steam inlet branch and a steam -
outlet branch parallel thereto, each branch com
prising a pair of parallel tubes connected at each
it and the axes of these openings are so dis
posed with respect to those of the tubes, such as
54, 56 that a clean-out tool may be inserted into
either by way ‘of the single tube length ‘56, or
the tube length 88 for the tubes 58, 6t. Atgtheir
other ends one tube, as 54, of each pair is adjoined
to the nearest adjacent tube, as 58, of the other
pair by an integrally formed breeches piece “i2, '54
at the inner end of single tube lengths it, '38
which in turn are joined by a breeches piece til
terminating in a single tube length 82 received
in a drain box M, or 85 for the units 49. The
drain boxes as, 85 are located outside the rows
of circulating tubes 2! and the single tube lengths
' ‘it, it connecting with the breeches pieces 12, ‘Hi
joining the tubes til, 58 and 5E, Bil respectively,
with the breeches piece extend between the cir
45
culating tubes 2i so that the breeches piece 80
joining these single tube lengths it, ‘H3 at their
outer ends does. not obstruct gas flow.
Inasmuch as the units connected between the
inlet and outlet headers at one side of the super—
50
heater are intercalated . with those connecting
with the headers at the other side, the drain
boxes 85 for the units is are located at the same
side of the superheatcr as the coupling mem
55 bore 52 for the other set of units at, and vice
versa. The two pairs of tubes forming a section
of a unit are staggered with respect to each
other, The coupling member joining one section
of any unit to its next contiguous section extends
beneath
the drain boxes for the sections of units
60
communicating with the headers on the other side
of the superheater, each coupling member re
ceiving the single tube length 63 of the outlet
branch ‘58, (it of each section is turned upwardly
65 at its forward end to meet the single tube length
£56 leading to the inlet branch 55%, 5b of the follow
ing section. Thus, the coupling members for one
set of units are nested with the drain boxes for
the other set of units. Accordingly mutual sup
70 port of the units is obtained from top to bottom
and the lowermost units may be supported upon
the water drums 2d of the boiler.
_
It may be seen that the superheater construc
tion described above is so compact that a consider
75 able amount of superheating surface may be lo
-
What I claim is:
1. In a superheater; inlet and outlet‘ headers;
with clean~out openings normally closed by plugs
4.0
(It
thereto through the related clean-out openings
end by a breeches piece to the inner ends of single
tube lengths; coupling members receiving the
outer ends of the single tube lengths at one end
of each branch and connecting the section to the
preceding and following sections of the unit for
circulation of ?uid in series therethrough; and
breeches pieces‘ joining the outer ends of the
single tube lengths at the other end of both
branches to anotherrlsingle tube length; and
means closing the outer end of saidv mentioned
single tube length.
-
2. In a superheater; inlet and outlet headers; I
a heat absorbing unit connected between said 35
headers and divided into a plurality of sections
each having a steam inlet branch and a steam
outlet branch parallel thereto, each branch com
prising a pair of parallel tubes connected at each
end by a breeches piece to the inner ends of single 40
tube lengths; coupling members receiving the
outer ends of the single tube lengths at one end
of each branch and connecting the section to the
preceding and following sections of the unit for
circulation of ?uid in series therethrough; and 45
breeches pieces joining the outer ends of the
v
single tube
lengths at the other end of both
branches ‘to another single tube length; and a
drain box receiving the outer ends of said last
mentioned single tube length and formed with a 50
normally closed opening for discharging fluid
from any of the tubes constituting said inlet and
outlet branches of a section of a unit.
3. In a boiler having a combustion chamber,
and rows of‘ spaced ?uid circulating tubes ar 55
ranged on opposite walls of said chamber; a
superheater having inlet and outlet headers
located exteriorly of said tube rows and heat ab~
isorbing units disposed within and extending
across said chamber, each unit being divided into 60
a plurality of sections having inlet and outlet
branches each comprising a pair of parallel tubes
connected at each end by breeches pieces to the
inner ends of single tube lengths projecting be
tween said circulating tubes; coupling members 65
located exteriorly of said circulating tubes at one
side of said chamber and receiving thebuter ends
of the single tube lengths at one end of each
branch of a section and connecting said section
to the preceding and following sections of the 70
unit, the axes of said last mentioned single tube
lengths being aligned with normally closed clean
out openings formed in the related coupling mem- *
bar and located with respect to the axes of the
pair of tubes joined thereto so that a cleaning
c
2,107,815
tool may be inserted into either of said pair of
tubes; breeches pieces joining the outer ends of
V ‘ the single tube lengths at the other end of the
3
pair and to single tube lengths projecting be
tween the tubes of the row at the opposite side
component branches to another single tube of said chamber; a breeches piece joining said
length projecting between the row of circulating ' last mentioned single tube lengths to each other
tubes at the opposite side of said chamber; and and to another single tube length; and removable
closure means closing the outer end of last men
drain boxes located exteriorly of last mentioned tioned
tube length.
tube row and receiving the outer ends of last
‘ mentioned single tube lengths,-said boxes being
'10‘
provided with normally closed openings for dis
' a charging ?uid from any of the tubes of each
section of a unit.
' > 4. A tubular heat absorbing element foriasuper
heater or the like having inlet and outlet branches
each comprising a pair of parallel tubes joined at
f one end thereof by breeches pieces to single tube
‘ lengths adapted to connect with fluid circulating
headers; breeches pieces joining the other'ends
of vone tube of each branch to one tube :of; the
6. In a superheater having a plurality of units '
each divided into a plurality of coupled sections
as recited in claim 2; inlet headers at opposite
sides of the superheater each spaced from an
outlet header at the same side of the super
heater, the said sections which constitute a unit
that connectsiwith the inlet and outlet headers
at one side of the superheater being intercalated
longitudinally of the superheater with the sec 15
tions that constitute a unit connected With the
inlet and outlet header at the opposite side of
20' other branch and to the inner ends of single tube . the superheater and the coupling members join
lengths; and a breeches piece joining said last
mentioned single tube lengths to each other and
to; another single tube length; and removable
closure means closing the outer end of said single
tube length.
'
‘
'r 5. In a locomotive boiler having a combustion
v30
chamber; rows of spaced ?uidcirculating tubes
lining the side walls of said chamber; a super
heater having an inlet header and an outlet
header located exteriorly of the rows of tubes at
onesidel of said chamber; a. heat absorbing ele
- ment connected between said inlet and outlet
headers divided into a plurality of ‘sections each
comprising two pairs of parallelly extending
:35: tubes; breaches pieces joining the tubes of each
ing the contiguous sections of each unit each ex
tending beneath and supporting a drain box for 20
a section of a unit connected between the headers
at'the other side of the superheater.
7. In a superheater; an inlet header and outlet
header at each side thereof; a plurality of sec
tional heat absorbing units, as recited in claim 2, 25
connected between each inlet and outlet header
and arranged in parallel rows with units which
are connected to the inlet and outlet header at
one side of said superheater intercalated longi
tudinally of the latter with the units that are 30
connected to the headers on the other side of the
superheater, the coupling members joining con
tiguous sections of the respective units being ar
ranged
in spaced horizontal rows at the same side
' pair at one end to each other and to single tube .
35
lengths projecting between the tubes of the row '1 of the superheater as the headers to which the
respective
units
are
connected
and
the
related
at one side of said chamber; a coupling member
drain boxes being arranged in spaced horizontal
positioned exteriorly of said tube row and con
rows at the opposite side of the superheater and
40 necting the single tube length leading from one
1 pair to the preceding section of the unit and that located between and supported by coupling mem 40
bers that join the sections of units connecting
from the other pair to the following section; with
the headers at said opposite side; and means
~ breeches pieces joining the other end of one tube supporting the lowermost units.
of each pair to the adjacent tube of the other
VIRGINIUS Z. CARACRISTI.
Документ
Категория
Без категории
Просмотров
0
Размер файла
627 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа