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Status of Fukushima Units
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Status of Fukushima Units

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Miroslav Lipar, 7 April 2011

Miroslav Lipar, 7 April 2011

Published in: News & Politics
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  • 1. Status of Fukushima Units
    Miroslav Lipar
    7April 2011
  • 2.
  • 3.
  • 4. Sequence of Events to Remove Water in Unit 1
    Suppression Pool Surge Tanks
    2x3400 m3
    Condensate Storage tank
    1900 m3
    Condenser
    1600 m3
    2nd Step
    Transfer to provide tank capacity
    Mar 31st to Apr 2nd – Unit 1
    3rd Step
    Provide Space in Condenser
    Apr 2nd – Unit 1
    1st Step
    Mar 24th – Mar 29th
    Condenser filled
    Water in Unit 1 Turbine Building
    Approx. 20,000 tons
    Planned
    Rad Waste Treatment facility
    Temp
    Storage Tank
  • 5. Sequence of Events to Remove Water in Unit 2
    Suppression Pool Surge Tanks
    2x3400 m3
    1st Step -Transfer to provide tank capacity
    Mar 29th to Apr 1st – Unit 2
    Condensate Storage tank
    2500 m3
    Sea
    Apr 5th 1,500 tons
    Unit 5 & 6 sub drain pits
    2nd Step - Transfer to provide capacity in condenser
    Apr 2nd – (30 m3/h)
    Low level contaminated water
    Apr 5th
    10,000 tons
    Water in Unit 2
    turbine building
    Approx. 20,000 tons
    Planned
    Condenser
    3000 m3
    Planned
    Rad Waste Treatment facility
    Temp
    Storage Tank
  • 6. Sequence of Events to Remove Water in Unit 3
    Suppression Pool Surge Tanks
    2x3400 m3
    Condensate Storage tank
    2500 m3
    1st Step -Transfer to provide tank capacity
    Mar 28th to Mar 31st - Unit 3
    Sea
    Apr 5th 1,500 tons
    Unit 5 & 6 sub drain pits
    2nd Step - Transfer to provide capacity in condenser
    Apr 5th – Unit 3
    Low level contaminated water
    Apr 5th
    10,000 tons
    Water in Unit 3
    turbine building
    Approx. 20,000 tons water
    Later
    Condenser
    3000 m3
    Rad Waste Treatment facility
    Later
    Temp
    Storage Tank
  • 7. Injection of water glass to block the water path
    • Borehole
    • 8. Injection of Tracer
    • 9. Injection of liquid glass
    Cable Trench

    200
    1900
    O.P.+4.200

    O.P.+4.150
    Pit
    O.P.+4.000
    1800
    O.P.+2.700



    O.P.+2.200
    1m
    About

    Screen Pump room

    300
    300







    Crack
    Pit


    Injected liquid glass to block the water path in the gravel
    Screen Pump room


     Drill vertically
    Z
    ①~⑨:Positions of injection holes
    Cross Section Plan
    Floor Plan
  • 10. Nitrogen injection

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