| 摘要 |
An assembly for rotating and axially directing a high pressure spray hose and spray head to clean residue from the bores of thermal transfer tubes. Modular subassemblies are concentrically aligned and mounted to rotate in synchrony and direct a high-pressure water hose and spray head. Air controlled operator gun and remote controllers control assembly operation. A hose cleaning subassembly washes and/or brushes and cleans the hose exterior with a low-pressure spray. A hose drive assembly controls hose rotation and axial hose movement via biased pinch wheels. A resilient, eccentric linkage controls pinch wheel pressure. A layering arm uniformly layers the hose at an adjustable hose reel. Rotational sensors and/or a pneumatic booster and a disk brake assembly facilitate non-kinking hose collection and release without spillage. A channeled, re-configurable, extruded framework, and manual and pneumatic support carriages support a walking beam and the spray hose to automatically index the hose along the walking beam and vertically adjust and tilt the beam.
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