Adjustment of hydraulic organs Gammauta Dam

image9

Adjustment of hydraulic organs Gammauta Dam

Main object of the work:

  • Modification of the 8500x4730mm sector sluice gates of the surface outlet such that they could be opened and closed by operation of hydraulic servomotors powered by a hydraulic power unit equipped with an accumulation block with a manually operated hand pump. The servomotors were placed inside the side wells in order to allow smooth movement of the sluice gate by action on the ropes. The sluice gates were cleaned, the pulleys were checked and repainted, and the mechanical connection systems between rope and sluice gates and between rope and the cylinders themselves were replaced. Welding repairs were carried out on the tops where they had deteriorated with subsequent machining including modification/adaptation of the sill and overhaul of the pivot supports with disassembly of the pins, supply of ball joints for DN240 pin, machining of the pin to reduce it to 240 mm, machining of the outer supports, machining of rings and machining of front ball joints. Finally, they were supplied and installed with corresponding adversarial testing:
  • Level control system (level transducers, position transducers)
  • Controller cabinet, sub-distribution board with cables and electrical connections
  • New control units for surface sluice gates
  • New control servomotors for the sluice gates with associated piping
  • Engineering, level adjustment software development and CND on the supply