CONSIDERATIONS FOR THE DEVELOPMENT OF A DEVICE FOR THE DECOMMISSIONING OF THE HORIZONTAL FUEL CHANNELS IN THECANDU 6 NUCLEAR REACTOR. PART 11 - PRESENTATION OF THE CUTTING AND EXTRACTING DEVICE OPERATING
This paper presents a constructive solution proposed by the authors in order to achieve of a cutting and extracting device for the decommissioning of the horizontal fuel channels in the CANDU 6 nuclear reactor. The Cutting and Extraction Device (CED) performs the dismantling, cutting and extracti...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Academica Brancusi
2015-05-01
|
| Series: | Fiabilitate şi Durabilitate |
| Subjects: | |
| Online Access: | http://www.utgjiu.ro/rev_mec/mecanica/pdf/2015-01/29_Constantin%20D.%20STANESCU,%20Ing.%20Constantin%20POPESCU,%20Gabi%20ROSCA%20FARTAT%20-%20%20CONSIDERATIONS%20FOR%20THE%20DEVELOPMENT%20OF%20A%20DEVICE%20FOR%20THE%20DECOMMISSIONING%20OF%20THE%20HORIZONTAL%20FUEL%20CHANNELS%20IN%20THECANDU%206%20NUCLEAR%20REACTOR.%20PART%2011.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This paper presents a constructive solution proposed by the authors in order to
achieve of a cutting and extracting device for the decommissioning of the horizontal fuel channels in
the CANDU 6 nuclear reactor.
The Cutting and Extraction Device (CED) performs the dismantling, cutting and extraction of the
fuel channel components.
It's a flexible and modular device, which is designed to work inside the fuel channel and has the
following functions: moving with variable speed, temperature monitoring and video surveillance
inside the pipe, unblock and extract the channel closure plug (from End Fitting - EF), unblock and
extract the channel shield plug (from Lattice Tube - LT), block and cut the middle of the pressure
tube, block and cut the end of the pressure tube, block and extract the half of pressure tube.
The Cutting and Extraction Device (CED) consists of following modules: guiding-fixing module,
traction modules, cutting module, guiding-extracting module and flexible elements for modules
connecting. The guiding-fixing module is equipped with elastic guiding rollers and fixing claws in
working position, the traction modules are provided with variable pitch rollers for allowing variable
travel speed through the fuel channel. The cutting module is positioned in the middle of the device
and it is equipped with three knife rolls for pressure tube cutting, using a system for cutting place
video surveillance and pyrometers for monitoring cutting place temperature.
The Cutting and Extraction Device (CED) is fully automated, connected by wires to a
Programmable Logic Controller (PLC) and controlled from a Human Machine Interface (HMI).
The design of the Cutting and Extraction Device (CED) shall be achieved according to the
particular features of the fuel channel components to be dismantled and to ensure radiation
protection of workers. |
|---|---|
| ISSN: | 1844-640X 1844-640X |