8BHAU E04H 20060101A Ll 20060
12/08 6BHAU 30 (21)
Application No: 2006200834
(22)
Application Date:
2006.02.27 (30)
Priority Data
(31)
Number (32) Date
10 2005 009 592.2 2005.02.28 (33)
Country
DE
(43)
Publication Date:
2006.09.14
(43)
Publication Journal Date: 2006.09.14
(71)
Applicant(s)
(19)
AUSTRA Ll AN PATENT OFFICE (11) Application
No.
AU 2006200834 A 1
(54) Title
Fast assembly
meth 口 d f 口 r large
steam
generat 口 rs
(51) 6 International
Patent Classification( s)
E04 日 1 /1 9
(2006.01)
20060101A Ll 2006030
E04H 12/08 (2006.01) 8BHAU F22B F22 日 37/00 (2006.01) 37/00
F22 日 37/24 (2006.01) 2 060101ALI 00 030
E04B 1/19 . 6BHAU F22B 20060101AFI2006030
37/24
Alstom
Technol 口 gy
Lt d
(72) Inventor(s)
Gartne r_ R 口 I f; Heidrich , Jurgen
(74) AgentlAttorney
Watermark Patent & Trademark
Attorneys , The Glassh 口 use 290 日 u 附口口 d R 口 ad , Ha w1 h 口 rn ,
VI 巳 3122
-2-
" e ) b n o d i s n "工 £L o a,←」 m a 2 L U 8 n , V 4 i飞 ·工 、1 2 J ( t 0 P L a 口 r · u a μ m s s a
口 P - e e s b a q d e q d r a 1 4
S ←M
I - - e V 晴 》A · m m r e E L a ←l w p h u n r 俨 E晶 。h
s l S a ) x 晴 c c ·『/ d s q】
m -" r b a E J P‘
回i 寸m ∞C C N A V C O N A V C C N A O L 卜N
Abstract
For
the
rational
erection
of
large
steam
generators
(1) , a
boiler
structural
steelwork
(2) 1S
first
erected
with
an
outer
roof
section
(7) , which
includes
a
ma1n
beams
(7a
to 7c) . At
least
。口 e , e. g.
(7b) ,
to
be
erected.
When
the main
beams
(7a
to assembled , the
erection of
the
upper
boiler
wall
commences , whereby
the
corresponding parts
are
lifted
between
the
ma1口
beams
(7a
to
7c) from
above
into
the
boiler
structural
steelwork
and
positioned.
The
erection
of
the
inner boiler
structural
steelwork
roof
(8) ,
工 n one
p1ece
or divided
into
roof
modules
suspe 口 ded beneath
工 ts
subsequent
installation
the
space
bounded
by the
boiler
columns
begins
immediately.
Internal
components
are
fixed to
the
roof
modules
(8a , 8b) .
The
construction
unit
thus
erected 1S
raised
upwards all in
one
piece or
roof
module
by roof
module
and
assembled between
the main
beams
(7a , 7b , 7c)
or
be 口eath
the
same.
The
production
method
proposed in
this
regard
a further
shortening of
the
co 口 struction
times
steam
generators , in
particular when their gas cross-section which exceeds the dimensions
(Fig.
1)
-3-
寸m∞C C N。C O N 。C C N A O L 卜N
1/8
7c
/1
9
19a
5
Fig.
"1
-4
寸m ∞C C N。C O N A V C C N A O L 卜N
AUSTRA Ll A
Patents Act
1990
P ∞ 1
Section 29
Regulation 3.2(2)
COMPLETE SPECIFICATION
STANDARD PATENT
Application Number:
Lodged:
Invention Title:
Fast assembly method for large steam generators
The following statement is a full description of this invention , including the best method of
performing it known to us:
-5
s
· s d k e r d o -- -w v
」 a ←l ← α d- n n q de -- - n r o p p u m o q d c
口 v 1 4 e 0 r e p t s 喃 d 口 a q】
I o t a z e m g - 1 d n a t s 1中 a n r e t n - l S E e rM a e h r s e - L P -
地 h 在L e m s W 卡E 口 e 口 u r o s - - - 『!
a w p‘ e m l o- c o h u u u
d e n - - d r e n -- -‘h
←L
V a o r a b d e m r O A + L n 0 4 i e 1 4 f -
O G J e ←I M
n d 主 e 咽。
e p‘ e q de r r c e a x h L e w " l
" l t s a t e u h o " "工 ‘d
s 1 4 n s · l · - o o k p b 寸m ∞C C N。C O N A V C C N A O L 卜N
FAST
ASSEMBLY
METHOD
FOR
LARGE
STEAM
GENERATORS
The
lnvention
relates
to
an
assembly
method
for
the
fast
erection of
ge 口 erator.
steam
generators
and a
corresponding
steam
steam ge 口 erators are designed nowadays
almost without
as
tube-wall steam generators , the
boiler
wall
工 S or
vertically arranged
tubes
con 口ected
to 。口e
The
boiler
wall
surrounds
a
pass , for
example
工 n
the
form
of
a
duct
Arranged
口 the
upper
part
thereof
are
such
as economlsers , reheaters ,
other
surfaces.
The
boiler
provided
on its
with
buckstays
and
wall
boxes , which
include
headers
arra 口 ged
on
cross-bars.
The
lower
end
of
the boiler
wall
is followed
by
a
boiler
hopper , which
hangs
over
a
so-
called
boiler
floor. The whole boiler , to
which
the
aforementioned
elements
belong , 工 S
arranged
suspended
工 n a
boiler
structural
steelwork.
The
boiler
structural
steelwork
stands
on
a
base
bordering
the
boiler
floor
and
has
several
boiler
columns
braced together
by mea 口 S of
cross-bars
and
bracings , said
boiler
columns
carrylng a
boiler
structural
steelwork
roof.
The
boiler
structural
steelwork
roof
carries the boiler , which
is provided
with a
boiler
roof
at the
top
beneath
the
boiler
structural
steelwork
roof.
For
the
fast
erectio 口 of
larger
stea盯 l
of this
DE
100
14
758
C2
proposes
a
which
makes it
to erect
simultaneously
the
upper
part of
the
wall
and
the
internal
to be
there.
For
this
purpose , the
structural
roof
lS divided
into
a 口
outer
roof
section
and
into
an
lnner
roof
section.
The
boiler
structural
steelwork 工 S first
erected
with
the
outer
roof
section.
The
latter
lS
designed ln
such
a
way
that
it offers
access
from above
to
-6
V 4 V d
r G J n - 1 - n n a p q M b l e e q d l r n - l e ·工 o b ‘d
r o c c a h w e h u + L
V d
b d 口 α,
a e v a s V 6 1 4 哩 t 1 4
∞ - l + L r a p -
e e r k z 〉 川 同】
r o h t o f e ←L a r e n e - i V J
Z b e h t e 卡w
s t e q d h d e s o -- - c n e s t 口 e n o t · - n d 1 4 a z u +」 c u z W q h 仨L d 『上 - l u h u e h t . 、4 W 呻 ∞ F M q u t q n n e - L n d 卡I S o u p‘ 、4 m c O R C - L 寸m ∞C C N A V C O N A V C C N A O L 卜N 2
the
volume
boiler
structural
steelwork.
By
mea 口 S
of
a
crane ,
parts
for
the
erection
of
the
boile 工
wall , J. n
particular
the
upper
boiler
wa11 , can
be
1ifted
J. n
froπ1
above
through
an
openi 口q
1eft
J. n
the
outer
roof
section.
This
enables
the
assembly
of
the
upper
boiler
wa11
by
means
of
a
suitab1y
1arge
crane.
At
the
same
time ,
there
can
be
erected
on
the
boi1er
f1oor , or
just
above
the
latter , the
口ner
roof
section of
the
boiler
structural
stee1work
roof.
The
1atter
J. s
he1d
for
examp1e
by
traction
ropes , the
hoisting systems
whereof
are
anchored
J. n
the
boi1er
structura1
stee1work , e.g.
to
the
outer
roof
section
of the
boi1er
structura1
stee1work
roof.
The
口 ecessary
interna1
are
now erected beneath the
J. nner
roof
section
boi1er
structura1
stee1work
roof ,
the
J. nner
boi1er
structura1
stee1work
roof
can
be
raised
step
by
step.
The
assemb1y
of
the
upper
wal1
and
the
assembly
of
the
interna1
components
thus
run
J. n
para11e1
J. n
ter 盯 lS of
timing.
Because
both
assembly
procedures
are
工 n
each
case
very
time-intensive , a
large
amount
of
time
can
thus
be
the
para11e1
assembly.
When
upper
boi1er
wa11
interna1
are
each
completed , the
internal
components
the
J. n 口er
boi1er structura1
stee1work
roof
are
taken upwards
point.
and
fixed
and
connected
at
their
insta11ation
This
method
has
been
tried
and
tested
for
the
erection
of
1arger
steam
It does
however
have
its
1imitations
1arge
steam
ge 口 erators , the
boiler
roof
whereof
has
at
least
one ,
but
preferab1y
a p1ura1ity
of
undivided
main
beams
the
gas
pass.
The
prob1em
of
the
invention
工 S
to
provide
a
method
and
a
steam
generator
which
a1so
permits
the
rationa1
erection
of
particular1y
large
steam
generators.
-7
g d n e "工
S d u 口 e ←L
X e C . 、4 1↓ s u m e t s a e r n 、 d v d t V 4 、
P E n S O 1a e s m k 山 l P -a ! U m e M t a b x 石L h o q d u o r h - l h。
e ←」 e c- - L a v r e d u t c + 」 r a y u p‘ s d e q】
O P &
p u s e r r r .牛 、 s m e a t -工
S 1 4 r h t ←」 m ‘ p n L ·工 . 、4 s e x u a S
。
y " e e p n电 -- - t b + L s h a q】
q d←L
E L - L r a p "工 e h 4工 u s 寸m ∞C C N。C O N A V C C N A O L 卜N 3
This
method
工 S
solved
by
the
method
according
to
claim l
and
the
steam
generator
according
to
claim
8.
It 二Ln
the method
according
to
the
invention
that
outer
roof
section
has
a
plurality
of
main
beams ,
whereof
at least
one
extends
transversely over the
gas
pass , whereby
beam
intermediate
spaces
are
present
between
the
varlous
main
beams.
The
beam
intermediate
spaces
serve
as a口
access
open 工 ng ,
which
components
to be
assembled
ln the
upper
part
the
gas
pass , such as
buckstays , wall
boxes
or boiler
wall
parts , can
be
guided
to
their
point of
installation
by
means
of
a
crane.
The
crane
ca口
guide
the
parts
二 Ln
a
suspended
fashion
through
the beam intermediate spaces.
While
the
of
the
boiler
lS largely
erected
and
completed
way , it
is possible
at
the
same
time , ln
a
construction
area
lying
vertically
below
the
aforesaid ,
above
the
boiler
floor , to
assemble
the
工 nner
roof
section
of the
boiler
structural
steelwork
roof
and , beneath
the
latter , the
boiler
roof
and
the
internal
cornpo 口ents.
The
concer 口ed
can be
held
at the
respective desired
and
connected
togethe 工, for
example
by
means
of a
It is also possible to erect the
lnner
boiler
steelwork
roof
by
suitable
口 teans
and
to assernble
suspended
therefrom
the
boiler
roof
to
be
assernbled thereunder
and the
internal cornpone 口 ts. The inner
roof
sectlon
of
the
boiler
structural
steelwork
roof
can
also
be
suspended
on
strands
or
traction
ropes
which
are
attached
to suitable
cable
The
cable
hoisting
include , for
lifters ,
which
can
set
up
on
the
rnal 口
outer
boiler
structural
steelwork
roof.
The
ma 工 n
bearn
transversely
over
the
gas
pass
can
in
particular
be
for
the
suspension
of
the
inner
boiler
structural
steelwork
roof
or
roof
modules
into which
the
inner
boiler
structural
steelwork roof
is
divided.
-8
【U
P←L e o q J a 牛L
n a v - d
a n r v e e q dn n o -- - - l r t e c r e 1 4 · L o e 1 4 n " " D ←」 - L
P‘ t p m a u e V · 0 c s s v e 1 4 b 卡 」 q M c。
- l e s 卡t w - - n " a n e u q e s b u q M 卫 " L 工 p p a t e o p & n y n v f o u s u e
0 d e d n e q】
S a "日 " L 口 t z a ←」 q】
o p&·工 e b " v - l f ι o S m r e p - S u p ι F Z ,工 v d
S a e S
O U q u v 1 4 n h h o S 1牛
a g vd←I g uu u q d ·工 M -- - 由 e q M - l s d r o e 此 n e d 、 a 口 α da q u w a e r t l u m "工 q u v A U e s q】
s a p o 出 q u p - f
l - "工 s s o r p o o r a t q d u
。
d e s o p e l o p &
o t r - l p‘
C n 川 V 4 1牛 e S r e n n u 飞4 ←」 0 ·工
S t d P & a E l n q } r y o
l 卡 」
1 4
a a q dr n e U E L S e ‘d
P · " e m u R e s q‘ e h v 1 4 e r - 0 ←L e - P ι1 4 r ←」 r u s 口 e ←」 n · s t m - b e -、D
C n r e e工 α J
V a a o t o u e r x r n ←」 e p -工 p
S
S - & 寸m ∞C C N A V C O N A V C C N A O L 卜N 4
The
of
n
of
the
this
the
erection
boiler
wall
and
the
buil t-in
compartments at
vertically spaced apart
from
one
another
and
bringing-together
,
whereby
the
工 n 口er
roof
with
internal
components
therefrom 工 S
汇 aised
upwards , also
n the
case
very
large
steam
with
which an
nner
roof
section
the
whole
and an
outer
roof
standi 口 9
completely
of
the
would
lead
to
uneconomical solutions.
With
the
of the
boiler
structural
steelwork
roof
n
the
proposed
manner , whereby
at least
one
ma n
beam of
the
outer
roof
section
runs
across
the
gas
pass , gas
passes of , for
m
X
30 m cross-section
can
be
bridged
without
The
口 \a n
beams
are
preferably
designed
free
from
which
offers
static
and
dynamic
and
a reduction 工口
loaded
points
separation.
With
the
very large
boiler
structural
steelwork
can
divided
into an
nner
and
outer
工 oof
section
and
can be
brought together
after
the
wall
and
the
internal
components
It 工 S
possible
to design
the
工 nner
roof
section
as
single-
P 工 ece
。
r
multi-piece , e.g.
divided
into
roof
modules.
The
工 nner
roof
sectio口
can
be
erected
on
the
boiler
floor
or
can
be
brought
there
工 n
the
form
of
prefabricated
units.
The
boiler
roof
to
be
assembled
thereunder
and
internal
components can then be assembled suspended from it , whereby
the inner roof section remains at the same , sufficient
height
or
height.
s
raised
step
by
step
proceeding
from
a
lower
If
the inner roof
section is
designed
in
one piece , it will
工 n
any
event
be
moved
upwards
as
a
whole
with
the
internal
-9
V 4 e l h V 4 1 4 1 4
a u d h u E m e s s a + L
.叮-
v d ←L
v . " - 1 4 . l D · L x e -、- d 俨& 口 ·· · · - 〉 ‘, v d 嘈 1 4
旧J d
m 啦 D n " 噜 m a e e -- -占 - S 在 上 v du ,缸 r G J←」a Y S 泪 p 、d u o c m c l 叫 u q } · 1 d e v e -- n - L 1 i
e ·工 。
b b - l s s 1 4
1 4 a W h q d c n a e . q J η l c c a d 1 -
e w E L r "n e ←E W - - - 1 4 "工 3 b S
0 E - 3 w d a ←L
1 4 a n e r v e - - t t 口 e c a . ! d a s e v o r n y , d 民 - 1 4
n - l c e 卡』 R m a P e b 』 e s e h e r ←L e 在ι a z 卡 」 口 r - 1 1 f 4 0 t r t E工 W V 4 · 1 . d 1 4
a n r y - d
a 1 4 S e 吨i b m 、 e u e e . s d s o z l t n a - - - a m 寸m ∞C C N。C O N A V C C N A O L 卜N 5
components
suspended thereunder , when the upper boiler
wall
is complete
and the
internal
components
suspended on it are
ready
assembled.
1f , however , the
1nner
roof
section lS
divided
into
roof
modules ,
two
different
procedures
can
alternatively
be
carried
out , 1.e.
工口
first
place
sy 口chronous
ra1s1ng of
all
the
roof
modules
with
the
internal
compone 口ts
suspended
thereunder
to
the
or
工口
the
seco 口d
place
the
roof
components
beneath
the
roof
module
one
after
the
other ,
1.e.
at
t 工 mes.
1n
the
latter
case , the
boiler
roof
must
also
be
designed
multi-piece , so
that
each
工且 ner
roof
module
has its own
boiler
roof
section assigned to it.
Whilst
the
first-mentioned procedure has the advantage that
internal
components
can
simultaneously be carried by a
plurality
of
roof
rnodules , 1.e.
can
area
that
is
larger than
that of
a single
roof
the
second-
mentioned
procedure
has
the
advantage that
the
erection
of
the
upper
boiler
wall
and
the
erection of
the
inter 口 al
cornponents
can
be
linked
to
one
another
more
closely
1n
terms of
procedure
and
timing.
1f , for
example , a
very
large
stearn
with
four
boiler
walls is
being
erected ,
walls
being
orientated
for
example
to
the
north , east , south
and
and
if
the
northern
boiler
wall
aηd , around
the
corners , a part of
the
eastern
and
the
western
are
already
completed ,
the
roof
module
to
the
norther 口
boiler
wall
can
be
components
whilst lying
further
thereunder
roof
are
modules
still
with being
erected
over
the
boiler
floor
and
the
eastern , western
and
southern
boiler
walls
are
still
completed.
This
procedure
components
also to
the
erected.
and
to
the
internal
work , for
example , lS
facilitated.
The
with
regard to
the
organisation of
the
production
sequence
permits
the
latter
to
be
compressed
so
as
to achieve
the
-10-
k r o w - 4
v de r e 1 4 ·工 O V --D A U a e r 1 4
a s e c u d o r & e
h ←L
1 4
b a r e 白」 t s 1 4 在l占 , d 2 a 盯
山 e d D n a L D & ← q d 0 w - ·工 c u r + L C U 1 4 S e d r e d n y " u
q y n b a r 2 P U
e r " L E u d t · L 1 4 i b e h + L P E t s V A 1 4 1 4 n a a p‘ C d n q d "工 n d - l r S - L C e v d p l s e e e d o n c o c r e h + L
ι在 e h r o 石上 p‘ a q】
e r r o c F 卡」 - l 可 t y e h ←t」e
Z o r L h h q d +」 t
n ← q d t
u S e 1 4 u a -- - h
c "工 h w z "工
r 口
o n p a p p‘
u s s +」 o h t 1 1 4
n u ‘G
"工 O
O P - m A 寸m ∞C C N A V C O N A V C C N A O L 卜N 6
shortest
generators.
possible
building
times
for
large
steam
The
advantages
are
obtained
with
the
steam
generator
to
claim
8. The
undivided
ma 工 n
beam of
the
outer
boiler
roof
spanηing the gas pass
endows
the
boiler
structural
steelwork with particular
stability and offers a suspension
inner boiler
structural steelwork roof
or the
thereof. The result is a statically
favourable
construction
combined
with
the
aforementioned
advantages
as
regards
the
erection
of
the
steam
generator.
工 s
not
essential , it has proved advantageous to
a 工 ign
beams of
the
outer
boiler
structural
steelwork
roof
parallel
to one
another.
This
a clearly
arra 口ged
structure.
Furthermore
,
ma 工口
beams
are
preferably
undivided.
They
can be
erected
ln a
previous construction
phase
工 n
which
the
wall
has
not yet been
completed.
The intermediate spaces between
the
main
beams
are
designed
sufficiently
large
to
permit
boiler
wall
sections
and other parts to be lifted from
above
口 to
the boiler
structural
steelwork.
The
ma 工 n
beams
are
as box-section
beams.
A
sufficient
lS achieved
with
the
the
construction
phase ln
gas pass , s 。
that
the
main
beam
gas
pass
ln
particular
can
also
serve
as
a
the
cable
hoisting systems
for
ralslng
the
inner boiler
structural
steelwork roof.
Further
details
of
advantageous
embodiments of
the
steam
generator are the subject-matter of
description
and sub-claims.
the
drawing ,
the
-11
V 4 1 4
e e z u q J ←L
e - - p m o c n "工 " L . d ι俨
e r e n 口 i ←E M C V d e
" k
r o b r b -- - b m e e e r w e - - 4 h v de w e 1 4
1 4
卡」 q J S 口
S a s h ,"工 - l a ←L C M " ←」 ←」 " 旨 l R r l a e v d w r a r . M U a a x p - r h - 【D u 卡 」 c u r ←」 S 口 e v e -工 n噜 r m t a ·工 e l l g L
. 1 - 0 e L - l r 旦 ←」 P 出 U a g U t G『 e c s u -- -z a t r s q d n - l w a r s e l p d m a e x n T】U ←V
嘈 I 寸m ∞C C N A V C O N A V C C N A O L 卜N
of
ernbodirne 口 t
。f
7
the
invention
are
illustrated
工 n
In
the
figures:
Figure 1
shows
an essentially
assernbled
stea盯 l
generator a
diagrarnrnatic
perspective
view ,
Figures
2
to
5
show
the
steam
gene 工 ator
1n
var 工 ous
construction
illustrates
a
boiler
and
2
outer
the
工口 ner
boiler
structural
steelwork
roof
already
crane ,
erected
as
well
as
an
assernbly
Figure
3
illustrates a
subsequent
construction
stage
。主 the
boiler
structural
steelwork
with
buckstays
and wall
boxes
already
partially
assembled ,
Figure
4
illustrates
a construction
stage , 1n
which
with
the the
boiler
outer
structural
boiler
steelwork structural
steelwork
roof
lS erected
and
the
boiler
walls
are
being
assembled ,
whilst
ancillary
heating
surfaces
are
being
assernbled
at
the
sarne
tirne
above
the boiler
floor , and
Figure
5
illustrates
a
building
stage
1n which
the
surfaces , after
their
have
bee 口
steelwork
the
roof
into
boiler
their
installation
latter ,
position
and
fixed
1n
the
-12
C - l t a m a r q d a i - d
d n r e q d n w ·工
e e a - 1 4
- - 0 -- l w e - 1 4 V d i o -- - v m a x e b "工 u e b v - 1 4
咱 - 2 - a n 0 r 1 4 a z 0 a t t c a q de u .『4 ←L
r e 口 n "工 P L
C U E 卡」 S c e s r r u e e ←」 q d p v d S 1 4 - l L a c - - t r e v l e a -- - r -- - u 月M Z a + L
C u p - r
←」 1 - a A U
仨L e n G J
O n
? " s a ·工 r r z o
a n‘ 寸m ∞C C N A V C O N A V C C N A O L 卜N 8
Figure
6
shows a
simplified
embodiment of a
steam
generator
according
to the
invention
工 n
a
diagrammatic
simplified
plan view ,
Figures
7
to
9
show
different
configurations of
the
divided
roof ln
boiler
a
structural
steelwork vertical
Figure
10
shows
an embodiment
of the
steam
according
to the
in 飞 rention
stage
工 n
a simplified
Figure
1 illustrates
a
steam
generator
1 in
the
manner
of
a
tower construction , which is
carried
by
a
boiler
structural
steelwork
2. Boiler
structural
steelwork 2
includes
vertically
arranged boiler
columns
3 which
rest
on
suitable
foundations.
Boiler
columns
3 erected
ln a
square
and
are
co 口nected
to 。口e
another by
boiler
steelwork
bars
4 which
are
arranged
ln
tiers.
Bracings
5
are provided
for
the
purpose
of
reinforcement.
At
the
top , boi1er
structural
steelwork
2
carrles
a boiler structural
steelwork
roof
6 , which lS
divided
into
an
outer
roof
section 7
and
an
工口ner
roof
section 8.
In
the
present
example
of
embodiment , outer
roof
section
7
lS formed by three main beams
7a , 7b , 7c , which
rest ln
and spaced apart from
one
another on
boiler
steelwork
2.
At
least
。口 e
of
mal 口
beams
7a , 7b , 7c , 工 n
the
present
middle
ma 工 n
beam
7b ,
spans
a
central
free
space
工口
structural
steelwork
2 , in which
a
gas pass
is to be
erected.
All main
beams
7a ,
7b , 7c , but
at
least
middle
main
beam
7b , are
preferably
designed
undivided
viewed
over
the
length.
Main
beams
7a ,
7b , 7c
ca 口 be
divided
along
longitudinally
running
jointing
-13
s n o - q d e z ) 川 m t r f A U - U
时 E m I ‘ P U L O r s a - 4
s p‘ r
e y p 1 4
" D a r e 石上 e n y U e n 、 ←L
n r p & ,工 C u a Q J - i 1 4
1 4
a m a e b q】
←E W t s 口 e r t w r M ∞ b
a m p -- 1 r e -。『,J
e q u r e v s n u a 8 p m O C a r - - S " r ,工 o " b 2 b e s e ←E W
L + n a e e n h o r p‘ e - - 4 q d (
a 口 r e 卡 」 n 、牛 m p r o u c s ←」 寸m ∞C C N。C O N A V C C N A O L 卜N 9
planes
into
There
are
however
no continuous
Inner
roof
section
8
二LS
carried
by
outer
roof
section
7
and
工 S
connected
to
the
latter.
The
outline , l.e.
the
max 工 mum
external
dimensions , of
口ner
roof
sect 工 0 口 8
lS
at
least
somewhat
smaller
than
the
clear
width of
the
space
surrounded
by
a
boiler
wall
19
ln
steam
generator
1 , at
least
工 n its
upper
section
9. In
this
section , illustrated
steam
tubing
1
工 S
with
vertical
Provided
ln
section
9
of
steam
generator
l are
internal
including economisers ,
reheaters
and
These
are
formed
in
each
case by
horizontally
arranged
tube
bundles , which
extend
transversely through
the
gas
pass
defined by
steam
generator
1 and the
connections
whereof
are
led
through
boiler
wall
19 , ln
particular
its
sect 工 on
19a.
The
latter
工 S surrounded
externally
by
buckstays
12 , which
boiler
wall 19
externally
and
are
carried
by
the
These
buckstays
are
connected to
one
another
at
boiler
corner as
well
as
to
boiler
wall
19.
Moreover , the
buckstays
formed
by
horizontal , rigid
beams
are
connected
to 。口e
a 口 other
by
vertical beams , so-called struts.
In 口er
roof
section
8
of
boiler
structural
steelwork
roof
6
lS
formed
by
。ne
or , as i 工工 ustrated in figure 1 ,two
roof
modules
8a , 8b , which are carried by main beams
7a , 7b , 7c.
Modules
8a , Bb are
preferably
held
at
the
same
height
and
for
their
part
carry
boiler
roof
19c
shown
工 n
figure
7 ,
which
terminates
the
gas
pass
to
the
top , as
well
as
the
suspended beneath the boiler
roof.
Roof
modules
8a ,
are
screwed
or
welded
to main beams
7a , 7b ,
7c. However , roof modules 8a , 8b
form
independent
units
which
are
pre-assembled
independently
of
main
beams
7a , 7b ,
7c and
are
subsequently fixed to the latter.
-14
"· e b y h T } Q J 1 4
e
U
GA -- - 1 4 b o 1 4
4 《
4 · k z e o r
W u-- q de " l f - - -
e + lw
S A U e ←L
S
在牛 V 4 ·工 《d 如L Q】
1 4 h k c u h u - i
a u d 1 v s s 2 d e d - - V O uu m m d x A
r p P -- ‘ e r e h ←F
L d o q n - l u n ·工 V 4 1 4
" D
m e A U e t r a t t n s o s c a s 寸m ∞C C N。C O N A V C C N A O L 卜N 10
Section
9
of
the
boiler
工 S
fol1owed
be10w
by
a
further
section
10
of
the
boiler
with
a
boiler
wall
section
which 工 S
with
tubing
vertica11y 。主
Buckstays
support
boi1er
wa11
sectìon
19b
from
exterior and are carried by
the 1atter.
There
fo11ows be10w
a
boi1er
hopper
11
which is a1so provided with buckstays.
Steam
generator
1 il1ustrated
in
this
the
sequence
illustrated
in
figures
2
regard
to
5.
1. S
erected
1. n
Accordi 口 q
to
figure
2 , the
assemb1y
of
boi1er
structura1
stee1work
2
1. S
started
王主 rst.
Boi1er
structura1
stee1work
co1umns
3
and
boi1er
structural
steelwork
bars
4
as
well
as
braci 口gs
5
are
erected
stage
by
stage.
A
crane
16
can
be
used
for
the
assembly.
Other
suitable
means
are
also
possible.
At
the
same
tìme , roof
modu1es
8a , 8b
are
pre-assembled
on
the
boi1er
structural
stee1work
f100r
or
are
positio 口 ed
at
this
point
1n
a
pre-assemb1ed state.
They
preferab1y
lie
more
or
1ess precisely
vertically
beneath
the
location
they
will
subsequently occupy in the installed posi tion. The
overall
cross-section
of the outline , which
is
defined
by
roof
modules
8a , 8b , 工 S
somewhat
smaller
tha 口
the
interna1
clear
width
of
the
gas
pass.
A further
work
step lS
illustrated 1n
With
。且 boiler
structural
2 , the
12
and
wall
boxes
15
it
The
latter
are
with
crane
16
as
pre-
assembled
buckstays
and wall
boxes
12" , 15"
from above
into
or onto boiler
structural
placed or installed there.
steelwork
2
and
are
provisionally
Whe 口
buckstays
and
wal1
boxes
12 , 15
are
assembled
and
boiler
structural
steelwork 2
has
reached
its
desired
-15
σ dv d F e q d 电G p‘ v d o d +」 a e n a h " u
e n e "工 『/ a q J - - t c e n n o c D‘ + IU
R a Z r a s s "工 -i x r m 0
1 4
z a f - - -
e a n r z e ←」 e ←E e n - l W n "工 S
E -- -e q J & L e - i ←」 白U W
Z 和L
a 1 4
P -u o m a x e e s o 毗 呵 -叮-- -
←L S E L o h e 1 4
b a c q d n
G z ·工
e ←」h u
c s 4工 a a t " o " q d h t E e l n n - 1
0 P‘ e m l a b r ←」 厅M J
E - e c m e e s x a e c 寸m ∞C C N A V C O N A V C C N A O L 卜N 11
height , outer
roof
sectio 口 7
工 S
erected , whereby
mai 口 beams
7a ,
7b , 7c
are
assembled
。口 upper
boiler
structural
steelwork
bars
4. They
can
moreover
be
connected
to
one
another
by
co 口necting
beams , as
for by
bearn
7d , which
lS arranged
outside
the
defined
boiler
wall
19.
Connecting
beam
7d
supports
main
beams
7b and
prevents
the
latter from having
to take up
excessively large tilting loads.
If
roof
modules
8a , 8b are
respecti vely divided
or split up
still
further , further
connecting beams
ca口
also
be
arranged
above
13
surrounded
by
boiler
wall
19 , e.g.
parallel
to
connecting beam 7d.
Accordingly , four roof
modules
ln
a
square , for example , would then be worked with.
On outer
roof
section
7 , there
lS 口ow
arranged , for
system
17 , which
includes
several
devices
tractio口
rope
bundles
18
are
each
to
the
corners
。f
roof
modules
8a , 8b.
The
cable hoisting
systems can be positioned both on main beams
7a , 7b , 7c
and
on the
connecting
beams , for
example 0 口
connecting beam 7d.
The
erection of
boiler
structural
steelwork 2 工 S
essentially completed
with
this
building stage.
The
simultaneous
assembly
of
boiler
wall
19a in upper
section
9
and
the
erection of
internal
compone 口ts
beneath
roof
modules
8a , 8b
lS 口。
w
commenced.
This
procedure lS
illustrated
in
figure
4.
For
the
erection
of
boiler
wall
19a , indi vidual boiler wall parts
20
a 口 d , as
mentioned ,
also buckstays
and other parts , as
required , are introduced
from
above
using crane 16 into
interior
space
13
and
secured , for
example
suspended
0 日 outer
roof
section 7.
Boiler
wall
19a
is thus
e 汇 ected
as
ln
a
to bottom.
The
gas
pass
bounded
by
the
and
工 n
its
upper
section
9
still
has
a
free
cross-
which
is bridged
solely by main
beam
7b.
-16
"b "d e s o 8 t e t h " q d C
←」 q M ,工
e P & a e r e 8 n e n o u h p &
n b 8 e p e n q n w 二 o c - 1 s ←」 e h u M e a p & e
- 1 n 、 s d r a w n y p e b ←」 盯 S .口 m m C e 咱 I 汇 4 口 沮 E V 4 1 -
巾 e R M n - l f u u u ←L
O
M H p m .工 口 .山 严 e U n 。"工 q】
a ←」 e L d e m z e 卡 」 n E - - - c u r ←」 q】
α d - d
n n o c e - -r ←」 u a e h c e s q d n · l S 4工 r D -
m o c s · - E J 卡l w n /』 s r ·工 Z L 寸m ∞C C N。C O N A V C C N A O L 卜N 12
At
the
sarne
tirne
as
the
installation
of
parts
20
for
the
erection of
boiler
wall
19 , the
internal
cornponents
are
erected beneath
this
For
this
cable
hoisti 口9
systern
17
ra 工 ses
roof
rnodules
l 口 each
case
to
a
height , and
holds
thern at
this
which
lS such
that
the
internal
cornponents
can
be
step by
step.
When
roof
rnodules
8a , 8b
have
been
raised
to
a
first
height , the
boiler
roof
s
first
erected
beneath
thern
and
secured
in
a
suspended
rnanner.
Roof
rnodules
8a , 8b
are
then
raised
to
the
next
height , so
that a
first
econornlser
coil
21
can
run
beneath
the
boiler
rnodules
roof
8a ,
and
8b. E气
with
further
28
to
coil
roof
22
follows
after
further
lifting.
Roof
rnodules
8 ,
are
now each raised step by
step and , as illustrated in figure 4 , a
reheater
coil
23
and
a
second
reheater
coil
24
are
installed
one
after
the
other , suspended
on
carrying
pipes.
After
further
raising
of
roof
rnodules
8a , 8b , a
superheater
coil
25
arranged
at
the
lowerrnost
point
can
be
installed.
Roughly
at the
sarne
tirne
as the
cornpletion of
the
aforernentioned
internal
cornponents
21
to
25 , boiler
wall
19a
has
L 口 the
rneantirne
also
been
cornpleted.
工 n
the
next
step
illustrated
n figure
5 , construction
unit 26
roof
rnodules
8a , 8b
and
internal 21
to raised
and
thus
guided
boiler
walls
19a
to
its
installation
Roof
rnodules
8a , 8b
are
raised
into
the
spaces present
between
rnain
bearns
7a , 7b , 7c
and
connected
there
to
rnain
bearns
7a ,
7b , 7c.
Main
bearns
7a , 7b , 7c
thus
carry
roof
rnodules
8a ,
8b and
the
loads
suspended
frorn
the
latter.
I 口 ternal
cornpo 口 ents
21
to
25
can
now
be
con 口 ected.
Boiler
wall
19b
and
boiler
hopper
11
are
subsequent1y
assernbled
工口
order
to obtain
the
finished
stearn
ge 口 erator
according to figure 1.
-17
d e s m q d a n e a b r E m a - - - a M d e m O J - - t s s a q M e q】
Z a V A -
吁4
r r - - 1 4
u b
川 1 ·口 仁 r d ,U p n n a
o c I u t - u 1 4 1 4 a w n山 口 P‘ U 山 · P V L V A【/ e n 电 r m l企 e - .工 " o b d a 7 伊 y - D 、G e n E工 在I牛 e A U d n C n 自 、牛 . a a Z r a n o ←L
a m a r 厅U J
- - ←L
P e
- -h r + L c s e A U a ; ·工
川 嘈 r q u s a p d e m e e r q d a " c b 7 s a G J b, 叮, e h u ←L r o 卡 」 e ←L
r a a a r
f ι e o
n s
e n q d I - e a +」 P & 卡 」
e a s -- -- 寸m ∞C C N A V C O N A V C C N A O L 卜N 13
Figure
6 illustrates
a modified
embodime 口 t of
a steam
1 工 n
a
and
simplified
plan
Vlew.
as exists
with
the details
described
above , the
same
reference
numbers
are used and reference
lS
made
to
the
above
A
total
of
three
main
beams
7a , 7b , 7c
span
here
internal
space
defined
by
boiler
wall
19 , whereby
maln
beams
7c are
aga 工 n
outside
7a , 7ab ,
7c
are
19.
at
uniform
distances
and
parallel
to one
another
are
designed
undivided.
Main
beams
7ab , 7b , 7bc ln
have
no
point of
separation
ln
the
immediate
of boiler
wall
19
inside
interior
space
13.
are to
outer
boiler
structural
steelwork
roof
and
not
lnner
boiler
structural
steelwork roof
8.
Inner
boiler
structural
steelwork
roof
8
here
of
a
to...
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