TNAG-1508-FCO40-2066-Guangdong-nuclear-power-station-project-at-Daya-Bay-safety-c-1987 — Page 129

THE STEAM GENERATOR

The steam

the generator transfers

heat

carried by the water of the primary loop to the

secondary loop through 'inverted U tubes'.

There are more than 3,000 'inverted U

with a total length of some 70 kilometers.

tubes',

At

the steam outlet there is a cyclone-type steam

and water separator and a louvre type steam and

water separator.

electric motor

upper axle oil pump

-motor cooler

Main Pump

secondary loop

water inlet

steem outlet

Navre-type

stean and water

separator

vortex-type

steam and water

separator

loop water outlet

C

flywheel

axle seal

The

main pump drives

primary loop water outlet

the

coolant at a rate of 22,000 tonnes an

hour. It is 8 meters high and weighs

90 tonnes.

The main pump is a centrifugal

pump. In order to prevent the leakage

of radioactive water it has three

shaft seals.

pump

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