APWR Layout Ppt

DOE Technical SessionUAP-HF-07068-0Copyright© 2007 MITSUBISHI HEAVY INDUSTRIES, LTD.

June 29, 2007

General Arrangement of Nuclear Island


1. Layout Feature of US-APWR

2. Building Concept & Location

3. Layout Considerations

4. Floor Plans/Sections of Nuclear Island

5. Physical Separation from Hazards

Contents




Type Advanced PWR

Output 1,700MWe Class

Unit Single Unit

Containment PCCV(Pre-stressed Concrete Containment Vessel)

Safety Feature Physically Separation for 4 Trains, &Physically Separation against Hazards





Reactor Building

TurbineBuilding

Auxiliary Building

Access Control Building Power Source Building

(Containment Vessel)Plant

North

1. Building Concept & LocationR/BA/B

AC/B

T/B

PS/B PS/B

P.N.


Reactor Building (R/B)Contains following safety-related facilities;- Containment facility including inner (SC) structures and in-containment RWSP.

- Safety-related pumps and Hx.- Safety-related electrical, I&C and H&V.- Main control room- Fuel handling and storage facilities.Seismic Category : I


Power Source Building (PS/B)Contains safety-related, non safety power generators and safety chillers

Seismic Category : I

P.N.




Auxiliary Building (A/B)Contains non safety-related equipment, piping(CVCS, WDS), electrical and H&V.Seismic Category : II

Access Control Building (AC/B)Contains access control area, chemical sampling and laboratory.Seismic Category : Non

Turbine Building (T/B)Contains the turbine generator,equipment and electrical equipmentrelated to turbine generator.Seismic Category : II


P.N.


Containment SystemType : PCCV (Pre-stressed Concrete Containment Vessel)Number of Buttress : 2Equipment Hatch : 1Personnel Hatch : 2

226’-5’’Total height

149’-2’’ID of cylinderDimension


Buttress

Tension Wire (Horizontal)

Wire Anchor

Plan View

Liner Plate

Tension Wire (Vertical)

Tendon Gallery

Buttress

Liner Plate

Section View

Base

Cylinder

Dome





i. Hazards

ii. Plant Performance

iii. Personal Safety

iv. Maintainability &

Personnel Workability

v. Construction

Protection safety systems (Physical protection/separation from hazards.)

Layout requirement for each systems, positional relationship between components.

Shielding to minimize radiation exposure and evacuation route.

Space for maintenance/inspection, access-ability, provisions for replacement, grating and hoist facility.

Integration for “Module”.Provides corridor and hatches.


4. Floor Plan/Section of Nuclear Island


Containment Facility and Inner Structure

Fuel Handling area

MS/FW Piping area

Safety-related Electrical and I&C Area Safety-related

Pumps and Hx area

- Spent Fuel Pool- Fuel Transfer Canal - SFPCS

- PCCV- RCS- Primary, SecondaryShield

- Refueling Cavity- MS/FW piping

- Safety Injection Pumps - RHR/CS Pumps- RHR/CS Heat Exchangers

- Main Control Room- Safety-related SWGR, I&C- CCWS- EFWPS


Power Generator

Non Safety-related Electrical and I&C Area- CVCS- WDS - non safety-related electrical and I&C

A

A



B1F

1F2F3F

4F(OF)

-SFP Cooling Hx-SFP Pump

- Spent Fuel Pit- Fuel Transfer

Canal

Safety-related Pumps and HX Area- CCWS- EFWPS

Safety-related Electrical and I&C Area

- Safety-related SWGR

Main Control Room

MS/FW Piping Area

Safety-related H&V Area

SFP cooling facilities

Fuel Handling area

Containment Facility and Inner Structure

A-A section

P.N.

C/V

R/B

FH/B




Isolate by fire barrier, or distance

Beyond flood level

- Protected by outer wall/roof

Protected by barrier

Protected by fire barrier, or distance

Main Control Room

Beyond flood level

Isolate by fire barrierSeparated by distance (contain-ment)

Cable

(Negligible)(Negligible)Piping

・Arranged above the flood level・Mitigation of flood source

・Installation of weir, seal door

Protected by outer wall/roof

Isolate by distance

Isolate by barrier, or distance(Restraint, jet barrier, if required)

Isolate by fire barrierSeparated by distance (contain-ment)

Equipment Including electric,

I&C

Internal Flood(External flood is

site specific)

Missile(turbine/ tornado)

Pipe break(high temperature

and pressure)

Fire(Combustible

material)

hazards


facilities

Typical Countermeasures against hazards


ContainmentPower SourceBuilding

Fuel Handling Area

A

BC

D

AB

DC ABCD

A

BC

D

AB

DC

ABCD

Power SourceBuilding

Fuel Handling Area

Reactor Building Reactor Building

・Physical Separation Concept of 4 Redundant Trains

P.N.

Containment


P.N.



: A train

: B train

: C train

: D train

B1F B1MF

Documents

APWR Layout Ppt