Development of local exhaust device for vinyl-bag work

Local Exhaust Device Development Team in Analysis Section

JAEA-Technology 2023-015, 19 Pages, 2023/08

JAEA-Technology-2023-015.pdf:1.45MB

In the analytical laboratory of Tokai Reprocessing Plant, samples for operation and facility maintenance are analyzed in glove-box. Analytical reagents and equipment are carried inside the glove-box, and radioactive wastes generated through the analytical work are carried out using plastic bag (vinyl-bag) attached to the glove-box. The work carrying in and out from the glove-box is called as bag-in and bag-out. During these works, if the vinyl-bag is damaged, radioactive materials inside the glove-box may be leaked out and radioactive materials contaminate the vinyl-bag surface and the work area. In addition to that, if the radioactive contamination floats into the air, air in the work area may be contaminated. In this study, actual situation of the vinyl-bag work, specifications, and features of a local exhaust device for glove exchange work, which is an existing local exhaust device for gloves with a similar installation structure to vinyl-bags, have been investigated. Then, local exhaust device for vinyl-bag work have been developed. The developed local exhaust device has the same dimensions and shape as worktable that are conventionally used for vinyl-bag work. Also, a hood, HEPA filter, and exhaust blower, which are main components of the exhaust device for glove exchange work, are installed inside of this worktable. As a result, it has been confirmed that the developed local exhaust device is effective to prevent air contamination in vinyl-bag work without increasing the work procedures, manpower, and work time.

Japan Power Demonstration Reactor Decommissioning program; Lessons learned on operation and maintenance of auxiliary equipment during dismantling activities

Hagiwara, Masaki; ;

WM'96,Conf. Proc. (CD-ROM), 0, 12 Pages, 1996/00

no abstracts in English

None

PNC TN1700 93-011, 186 Pages, 1993/01

PNC-TN1700-93-011.pdf:4.28MB

no abstracts in English