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Proprietary Document Design of CANDU Reactors

-,

-.

•

TYPICAL ARflANGEMENt FOR%ONE COH'TftOLANO.VER'I'~FUIX DETECTOR "","T$

RUPTURE OcScASSEMBLY

ftEACtlV1TY MECHANISM PECIC

CAlANDRIAYAULTLtHER

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Figure 2-1 CANDU 6 Reactor and Vault Arrangement - Front Elevation.'

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.

Proprietary Document

---0_04:0:;:-..1--

Figure 2-2

Design of CANDU Reactors

o

·&MD.................'" lUNG

CANDU 6 Reactor and Vault Arrangement - Side E!evation

r


REACTOR VAULT(filled with IIght-..,

•NOZZLE

RCUTHIMBLE

PRESSURE TUBE .

CALANDRIA(filled with heaYywater moderator)

,:.... .....1 -

CALANDRIAMAIN SHELL

CALANDRIAANNULARPLATE

CAl.ANORIATUBE

CURTAINSIIELDINGSLABS

err ROLLED JOIh'T

LEAD AND STAINlESSSTEEL WOOl. SHIELDING

CAI.ANORlA. TUBESHEET

..."L--~""'"'.:=-."j.: •• ":--.!t,A... :~t.o~: '. ":-. .

END SHIELD(filled with steel bIIlls

and I:ght wawr)

lATTICE TUBE

Figure 2-3 Detail of Sub-shell, End Shield and Support Assembly

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le.n~g

I

....g&~

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HEAvY WATER MODERATORCALANDRIA

TUBE

CHANNEL ANNULUS SPACER

PRESSURE TuBE

SLEEVE INSERT

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Figure 2-4 Detail of Calandria Tube Joint to End Shield

g.e-n~g

i

1~,

!i~-

FIXED END OF CHANNEL

l'TUBE SP~ACEA .././

~~

, fUEL BUNDLE

/1

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//" , CHANNE~ POSITIONING

ENo"mNDy ASSEMB~Y ~~:? ~_ e_

END FmlND BODY /. .'

~INEA TUBE /./.CAUNOA1A SiDE END BH1E~---'BE SHEET ~rnoE TUII~

,.....__/ A

CA~NOAJA TUBE

i

Figure 2-5 CANDU 6 Fuel Channel Assembly

Iend shield· 0.91 m

Ir_ hub& tIInge ua'y

lattice tube

r C" ,.. ,...... (._) (-. () 0() \..:) ,) t...'; .~ .:) ~ . :.. \:~gaI onnuIua ftg

l.;l5m .. I

i' _. ".j'--' 0V8lIIIfuelchamellength.l0.8m·'~-'---·-------

I'" endshield •O-!l1 m

,"-

.,"', ('" .-) .' '\ "J' r" r ""'C" "'), ••• , (. , I , ,

bellows ..... '.J \::. ',I, I.. ..J ~.) l" "l..

1!faII-

l-e,

j~

~

Figure 2-6 Cross Section through CANDU Fuel Channel


"~..

;

,. RACHAL STIFFENING PLAns

2 MOD£RATOA OUTLET

3 MANHOlES FOR COI'¢Sl RUCTION

.t. EMERGENCY DISCHARGE CONNECTION OPENING!. CURT...tN SHIELDING SLAB

6. COOliNG LIGHt WATER RETURN PIPES7. STEEL SHOT SHIELDING

jOPENINGSUSED FORCON$TRUCTK>N ON

. I. SHIELD TANK EXTENSION

9. BOLTED CONNECTION OF BEAMS10. MANHOLE COVER _ MANHOLES USED

DURING CONSTRUCTION ONLY11. LIFTING LUGS

12. MODER...i ...:" I.'LET

Dcsprocf.wpdFigure 2-7a Cutaway View of Bruce Reactor Assembly

Proprietary Documeat Design ofCANDU Reactors

..----------8128 mm (320")----------i~

1041 .• mmnOUTER --_18END WALL PLATE

38.1 mm(1.5") --

SHIELD TANK/SHIELD TANK EXTENSION iNTERFACE

_INNER PlATE

l- 38.1 mm--- r- (1.5")

T

l ~ ILCALANDRIA

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+TUBESHEET

t 25.4 mm PLATE l FLOOR(1")

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Figure 2-7b Cross Section through Bruce Reactor Assembly

Proprietary Document SOLID CONTROL AND

FLUXDETECTOR

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Figure 2-8Desproc!wpd

131. 151&. 819 2021 22

Geometry of CANDU 6 Reactor and ReUs

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Proprietary Document Design ofCANDU Reactors

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Figure 2-11 Cross Section through Reactor BUilding& Reactor - Elevation

f

SNOUTASSEMBLY

Figure 2-12

SUPPORTBEARINGS

CANDU 6 Fuelling Machine

MAGAZINEMANUA~

DRIVE

GRAYLOee~AMP

1i~

iElII"

lg,(")

~c

I

I!~

rI

l-~

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Shielding door

Carriage suspe~ded FM bridge

from bridge" •

FM&cradlesuspended

from carriage-

• OAIOOE lIAISED TO SntCTED "1' IAmCI POSmDN

• CAAR....GE ""'_SED TO SEllCTEO 'X' IAmcE POSInON

• CATENAAY 1AOLLlY _NlCED 10 END Of "",va.

• HU>O _NlCEO 10 KOMI AND UlCIt OHIO CHANNEL

• HU>OAEMOVESCHANNELClOSVAEAIIOIHlWlPWOANOOISCHARGUNIW'un

;~i'i{Ji:(~'':/.1:'

:):if:]"<.... ~.~:.. .'. '":::~:~i::~:.........". :.:::'.',::<if;',~.: ,: '"

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Figure 2-13 CANDU 6 Fuelling Machine Support & Travel

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FAILEDFUELBAV

NEW FUELSTORAGE ROOM

REACTOR DUILOINy'"/1

~_..-eOUIPMENTi.:----((JOc.CHARGEMACHINE

NEW FUELPORT

,,~

ELEVATOR ,-"~

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NEWFUEL~~jLOADINGAR~\~.

:11: ACCEPTMACHINE

o A

><C B

fi

NOTE: Figure Is simplified to show only new fuel loading althe "A" end of the reaelar and Irradlaled fuelldischarging allhe "B" end; however. system Is symmetrical. with corresponding discharge and new fuelports al bath ends and may transfer fuel In either direction.

Figure 2-14 CANDU 6 Fuel Handling System Arrangement


51

l

ATJilsPHEREllARRlER(1YPtCAL1

Figure 2-15

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STAIRS

REACfORENDSlllELIl COOlING

Reactor Building Plan near Reactor Base

Proprietary Document Design of CANDU ReaclOIS

£L 145.72_

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Figure 2-16

Desprociwpd

R~actor Building Elevation Section oat Reactor Face(Section S3 on F"lllure 2-14)

Proprietary Documenl

UPPEROOME


El14S.72 m

0.., "B

~w3-17 Reactor Building Elevation Section through Reactor Centre(section S1 on Figure 2-14)

Design of CANDU ReactorsProprietary Document

TyPICAL ARRANGEMENT JlEACT'VITV MECHANISM DECK TV"'CAL ARRANGEMENT FORFOft SHuTOf,. ADJUSTER ,ZOItECOHTftOL ANO VERTICALANO CONTROL ,.'$OReIER UNITS }LUX DETECTOR UNITS

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Figure 2-18 CANDU 6 - Reactor & Vault Elevation


................

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Figure 2-19 CANDU 9 - Reactor & Vault Elevation

230 ~ ,179r... .., ~ 216'"117 ... 10 2!!, I.- 230

I" 117 161 _ Fueling ThOO

230 .... R' 8l'" Shoe,r... 161 ~l 199 ""' .... 23Z 18 CaIaodria Thbe Sheet --l V Laltice Thbe

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Figure 2-20 Temperature Distribution in CANDU Reactor Structure

...,~

i~

i'aa

R

end shield

WE =weight of end filling

Ig,

T .. tension due to PHTnpressure aeling on ~. closed ends g

:<l

R .. support reactions atlaUice itube bearings In end shield ~

S.. support ,-romcall1ndria tube

applied at spacers

S

calandria tube

Ss

pres:sure tube Inside calandria tube

We =dlsbibutedweight offuel,coolant &

pressure tube

R

laUicetube

R

end shield

WE

T

!

Figure 2- 21 Loads Acting on Fuel Channel(Fuel Channel .. Pressure Tube & End Fillings)

and shield

fi

end shield

~~calandria tube with pressure tu~ Inside ~

lallice tu~

r-..

1::I.

!I:l

!II~

R =lllIpport reactions al rolled joint

...........----P =load transferredfrom pressure tube

alspacers

~P

We = .pdlsbibutedwelghlof

calandrie tu~less moderator

bUOyllnc:y

~R

.~

T T =tension (or compression) apPIle1·by end shield due to moderator'"'pressure on end shield and ~

P End shlald restraint of calandriB::ltu~ thermal expansion c::

. [~

Figure 2- 22 Loads Acting on Calandria Tube

calandria main shell

calandrla annular piau'"

p

1i~

ii

t

t

sulHJhell

We

We =distributed weight of calendrla shell+ shield wster pressure• moderator pressure

--p < _end shield'L i

W. =RCU weight +guide tube tensionwe W. W. W. W.

p

We11

v

calandrla sub-shell

end shield

,i

1i

iv 1

We We

J v=distributed vertlcal shearJ reaellon on shell edge

t

ttV

Ie,

ii

pG

G=guide tube tensionG G

p =modereror pressure on annularplate less shield walRr pressure

We we =distributed weight ofcalandria shell• shield water pressure+ modererorpressure

Figure 2- 23 Loads Acting on Calandria Shell

reactor support assembly =embedment + annular shell+annular plate + ring of BJCiaI ...seismic bolla at one end only a...

i~

fl!~

y

C

p -1.1'" 1w. 'It s =dlalrlboted vertical

C aURII shear reaction on

outer tube sheet edge

p --:H R 1 ft. Il applied by annularsupport shell

C ,..U Rtl 0

P--H "1 --I: - ....<iII......"'_ .....vvll.. VI UUY i·. .. . .. - - -

0...C ~U Rill + shield balls 0

~p ~_I> 1 ..• IJ_ ---c::

C _U Rtl Ip~ 1 ft• n

C

p

I r ~. _,~end shield

s

calandria

p

y =distributed vertical supportreactiolion annular support shell-appll8!l by ambedment

I

p =moderator pressureI

C =calandria tube BJCialloads

p Ih . ~ISlribUted vertical shear load on Inner tube sheet edgeC due to weight of calandria + Rloderator - buoyanc:y

· ---. IR • reaction load-palra on each lattice tubeh . ~~ calandria tube & fuel channel

~ lUI- I

P• ••1r-'-R11k--c

p

IT--RfI~_c

· J' I

'h : R~C

end shield

jai

y y

Figure 2-24 Loads Acting on End Shields

I~n

~c:

I

1&~

f!~

h

width W of RMD =beam span

....

point load due to flask

dlslllbuted simple support ,~ ~ i I ~ I/""I reaction to flask loadreaction all around perimeter

.penetrationsfor RCUs

I

f ./~.. _~i /./

length L of RMD divided Into 7 "bays". f /" """-Bach like an I-beam with flange width f =LI7 ~and vertical web height h=RMC thickness "",.~

<><

Figure 2-25 Loads Acting on Reactivity Mechanisms Deck (RMD)

Ca!andria Tubes& Lattice Tubes

End Shield

Sub-shell &End Shield Shell

Vault End Wall

Calondria Shell

~ .._.. _._ .._..~

· .I I· .· .

y .-L .. _ .. _ .. _ .. _ ..-L.~~

.'

..... -••••" i[I"

r- ..-l-· .Design~.<;ANP.QJl.~._ .. -:

I

I

I

Proprie13ry Document

Cylindrical~Support Shell

Support Plate

Colandria ShellAnnular Plate

Embedment Ring

Pressure TUbe

Bolts ThroughSupport. Plate

One Side Only ~m··_··_··_··_··_··_··~~

AttachedFuellingMachine

End Fitting

L .. .. --l

212" 48"

308"

Figure 2-26 Schematic of CANDU 6 Support System

Desproo£wpd


moderator pressure variesfrom zero at top to maximumat boIIom - this causes zerotension loads on top calandritubes but increasing tomaximum in boIIom tubes

uter tube sheei hotter thanner and has bigger diametralermal expansion - causesnd shield to 'dish'-this imposes strain anderefore loads in calandria tubemoderate tension in central regsmall compressive on edges

r -.;

C"p = moderator pressure •

= zero at top

C

p ..

be net load

~p-

C

P = moderator pressure --

C

'p --

C

p ---~?C1

mth

p e-th

P --

P

P

C= moderator pressure= maximum at boIIom

C

'L I. -

c

C

p

C

C = calandria tu

Figure 2-27 End Shield Dishing due to DifferentThermal Expansion of Two Tube Sheets

Dcsprocf.wpd

I

length difference allop & bottom edges causes shear strain In web plates

RM deck slruclore boxtop edge welded to lower edge of RM deck·

bottom edge welded to embedment on vault wall

out-of-plane bending caused by rigid attachment at top and bottom edges

1i.::l

fa!l~

i<§"It

~I

crOSlHection of support webalong short side of deck

//

Figure 2-28 Deflected Shape of RM Deck Support Webs due to ThermalExpansion of RMD relative to Vault Concrete

a.8sor8er units fuixdetector ,t$ rupture ocsc

Documents