decontamination chamber for the maintenance of dupic

KR0100814

KAERI/TR-1658/2000

Decontamination Chamber for the Maintenance of DUPICNuclear Fuel Fabrication and Process Equipment

- 2000 <SJ£ "DUPIC *A<3.5-

(DUPIC) «!££. ^ ] S - ^ ^

2000. 10.

A}-g--f *q<35.(FWR spent fuel)

M6

^ # £ S DUPIC^^S

°.E.5, 7}

!c: DUPIC

57^ SLfS

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- 1 -

Abstract

DUPIC nuclear fuel is to reuse PWR spent fuel as a raw material

and is fabricated through a variety of processes. DUPIC nuclear fuel

fabrication processes are conducted in the M6 hot-cell of the IMEF

(Irradiation Material Examination Facility) at KAERI (Korea Atomic

energy Research Institute) because of the nature of the high

radioactivity of spent fuel. All the process and treatment equipment

were designed and constructed to be operated remotely because direct

human access to the in-cell is not possible.

DUPIC nuclear fuel fabrication equipment and handling devices are

apt to be contaminated with high radioactive particles because the high

radioactive materials are treated in the fabrication processes. In the

case of which such equipment and devices are malfunctioned in use,

they needs to be repaired and maintained in the hot-cell or outside of

the hot-cell. The human operator can not deal with the contaminated

equipment and devices by direct contact. Therefore, the

decontamination needs to be done on such malfunctioned equipment

before they are put into service for maintenance. The decontamination

process needs to be conducted in a isolated and closed room to prevent

contamination from spreading over the hot-cell.

This report presents the decontamination chamber of being capable

of decontaminating and maintaining DUPIC nuclear fuel fabrication

equipment contaminated in use. The developed decontamination

chamber has mainly five sub-modules - a horizontal module for

opening and closing a ceil of the chamber, a vertical module for

opening and closing a side of the chamber, a subsidiary door module

for enforcing the vertical opening/closing module, a rotary module for

rotating contaminated equipment, and a grasping module for holding a

decontamination device. Such sub-modules were integrated and

installed in the M6 hot-cell of the IMEF at the KAERI. The

mechanical design considerations of each modules and the arrangement

with hot-cell facility, remote operation and manipulation of the

decontamination chamber are also described.

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(1) Unit shielding

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«r. Connector design

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1. Burgess, T .W. et al, "Design Guidelines for Remotely Maintained

Equipment," ORNL/TM-10864, (1988).

2. ^tflfl- $], " ^ ^7]l7l^" KAERI/AR-468/97(1997).

3. <&*$& $\ "^ - ^AnQ^^n^^Q l ^71 # 7fl -" KAERI/RR-1744/96(1997).

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BIBLIOGRAPHIC INFORMATION SHEET

Performing Org.Report No.

Sponsoring Org.Report No.

Stamdard Report No. IMS SubjectCode

KAERI/TR-1658/2000

Title / SubtitleDecontamination Chamber for the Maintenance of DUPIC NuclearFuel Fabrication and Process Equipment

Project Managerand Department

K. H. Kim(Spent Fuel Technology Development Team)

Researcher andDepartment

J. J. ParkCSpent Fuel Technology Development Team),M. S. YangC). H. H. Lee("), J. M. ShinC)

PublicationPlace

Taejon Publisher KAERIPublication

DateOct. 2000

Page 140 p. I11.& Tab. Yes( 0 ), No ( ) Size 255 Cm.

Note

Classified Open( 0 ), RestrictedC ),Class Document

Report Type Research Report

Sponsoring Org. Contract No.

Abstract( 15-20 Lines)

This report presents the decontamination chamber of being capable of

decontaminating and maintaining DUPIC nuclear fuel fabrication equipment

contaminated in use. The decontamination chamber is a closed room in which

contaminated equipment can be isolated from a hot-cell, be decontaminated and be

repaired. This chamber can prevent contamination from spreading over the hot-cell,

and it can also be utilized as a part of the hot-cell after maintenance work.

The developed decontamination chamber has mainly five sub-modules - a

horizontal module for opening and closing a ceil of the chamber, a vertical module

for opening and closing a side of the chamber, a subsidiary door module for

enforcing the vertical opening/closing module, a rotary module for rotating

contaminated equipment, and a grasping module for holding a decontamination

device. Such sub-modules were integrated and installed in the M6 hot-cell of the

EVIEF at the KAERI. The mechanical design considerations of each modules and the

arrangement with hot-cell facility, remote operation and manipulation of the

decontamination chamber are also described.

Subject Keywords(About 10 words)

hot-cell, spent nuclear fuel and particle, contamination, highradioactive material, decontamination, decontaminationchamber

decontamination chamber for the maintenance of dupic

Documents