Example of method 3 "Retrieving fuel debris from the side”
Index > Challenges and Plant information : Overview of methods｜Example of method 3 "Retrieving fuel debris from the side”
ⅰ) Challenges and reference information : Overview of methods
Example of operation steps for retrieving fuel debris by installing an opening on the side.
Operation steps
(1) Prior preparation ⇒Learn more
- Identify status and location of fuel debris and internal structure
- Identify fuel debris, and measure environmental information such as of dose around the cut object, and detection of hydrogen concentration
(2) Install barrier ⇒Learn more
- Install barrier with shielding function, and capable of preventing leakage of radioactive substance resulted from the post-process, like installation of openings
(3) Create opening on the side of PCV ⇒Learn more
- Cut the side of PCV and set opening that allows transport equipment enters inside the PCV
(4) Install equipment and access ⇒Learn more
- Through the opening installed on the side of PCV, transport equipment accessing inside PCV
(5) Dismantle and remove internal structures ⇒Learn more
- Remove or boring the internal structures, and clean-up those
(6) Retrieve fuel debris ⇒Learn more
- Retrieve fuel debris by using cutting equipment mounted on transport equipment
(7) Collect fuel debris and Transfer canisters ⇒Learn more
- Transfer the canisters to the temporary storage after collecting fuel debris (basically SFP should be used)
・This site provides examples of innovative approach and the technology required based on information submitted for RFI from inside and outside of Japan
・Proposal of more innovative method and technology would be highly appreciated
・Proposal of more innovative method and technology would be highly appreciated