Draft Tube Gantries
From Hydropower
Monorail or Crane : The draft tube overhead handling equipment can be of a wide range of capacity depending on the year of construction of the power house and also depending if gates or stop logs are used as draft tube opening and closing doors. The draft tube overhead handling equipment can be required in an overhead crane configuration if it operates inside the power house or in a monorail or gantry if it operates from the outside of the power house. Typically if gates are handled, the monorail configuration will not be selected.
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Reliable and efficient Draft Tube Gantry, Monorail...
Reliable and efficient Draft Tube Gantry, Monorail or Crane
The draft tube overhead handling equipment services a whole series of gates or stop logs gates and is not permanently attached to one of them. When the draft tube overhead handling equipment handles stop logs, it will normally be provided with a stop log lifting beam. The lifting beam allows the picking and releasing of the stop logs when submerged in water. The opening and releasing of the hooks provided on the stop log lifting beam can be manually operated or motorized.
Although draft tube handling equipment are exposed to the extreme load conditions generated by motor stall torque in case of dynamic asymmetrical jamming of the gate or stop log in the embedded guides during lifting, some users will not require the equipment to be designed to these maximum constraints since their operation is not as critical as that of intake or spillway gates.
COH is specialized in the design, engineering, manufacturing, installation and start-up of lifting equipment for hydroelectric projects such as Draft Tube Monorail, Crane or Gantry.
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