| 摘要 |
A process and system for removing sludge deposits from a tube sheet of a steam generator having at least one handhole provided adjacent the tube sheet is disclosed. The process includes the steps of inserting a suction device through the handhole and into an interior region of the steam generator, inserting a reciprocable fluid injection device supporting structure having a reciprocable carriage positioned thereon through the handhole and into a tube lane, within the steam generator adjacent a first side of a plurality of stay rods positioned in the tube lane, securing the supporting structure to at least one of the stay rods, positioning an end of a reciprocable fluid injection device in the carriage, inserting a peripheral fluid injection device through the handhole and into the tube land adjacent an opposing side of the plurality of stay rods to a position diametrically opposed to the handhole, and reciprocating the reciprocable fluid injection device along the tube land while injecting high pressure fluid towards the tube sheet with the reciprocable fluid injection device, injecting high pressure fluid through the peripheral fluid injection device and drawing dislodged sludge deposits from the interior of the steam generator by the suction device.
|
