CPC G01N 21/9009 (2013.01) [G01N 29/223 (2013.01); G01N 2021/0187 (2013.01); G01N 2201/0224 (2013.01); G01N 2201/0225 (2013.01); G01N 2201/06 (2013.01); G01N 2201/102 (2013.01); G01N 2291/2636 (2013.01)] | 25 Claims |
1. A coke drum inspection system comprising:
an adjustable ramp system configured to transfer an inspection crawler into and out of an interior space of a coke drum, the adjustable ramp system comprising:
a horizontal section having a horizontal length comprising a drive gear rotatably positioned on a first end, a first guided gear in meshing arrangement with the drive gear coupled to a first worm screw rotatably mounted to the horizontal section, a second guided gear in meshing arrangement with the drive gear coupled to a second worm screw rotatably mounted to the horizontal section;
a vertical section having an adjustable vertical length, a first vertical drive shaft threadably engaged within a portion of the horizontal section and in meshing arrangement with the first worm screw, a second vertical drive shaft threadably engaged within a portion of the horizontal section and in meshing arrangement with the second worm screw;
an angular displacement device positioned on a bottom end of the vertical section configured to be angularly adjustable relative to the vertical section;
and a front section having an adjustable front section length coupled to the angular displacement device; and
a ramp surface having an adjustable ramp length positioned on a portion of the horizontal section, the vertical section and the front section configured to provide a contiguous surface.
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