In-boiler work scaffolding, boiler water wall replacement device and replacement method thereof

摘要

An in-boiler work scaffold capable of easily replacing a boiler water wall even after the inspection work scaffold is mounted in a boiler furnace, and a boiler water wall replacement device and a replacement method thereof. An in-boiler work scaffold 10 according to the present invention includes upper and lower scaffolds 12 and 14 suspended along a boiler water wall 228 in a boiler furnace, and a lower scaffold 14 can be detachably connected to the upper scaffold 12. Extending in a direction intersecting with the boiler water wall 228 between the portion 16 and the upper and lower scaffolds 12 and 14, lifting the lower scaffold 14 removed from the upper scaffold 12 and moving away from the boiler water wall 228 And a movable lifting portion 18. [Selected figure] Figure 1