rubber dam - flexible weir - hydroconstruct...2019/11/25 · rubber dam - flexible weir the...
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Ges.m.b.H S T E Y R – A U S T R I A
Reservoir Level ControlRenewable Energy Source
Irrigation and Flood Protection
Rubber Dam - Flexible Weir
The operating principle – Water filled system
Principle section through weir and regulation shaft for a water filled system
The operating principle• Water is pumped
through a pump shaft into a filling shaft which is linked via a pipe as a “communicating container” with the fill and control shaft.
• For air-inflated system the operating medium is air which is controlled by an blower with regulation valves.
Principle layout of regulation shaft for a water filled control system
The operating principle – Air inflated system
Principle section through control building with air blower equipment and air pressure pipes
The threefold safety system
• A hand-operated sluice valve in drain shaft
• For water filled systems overflow section in control shaft; when upper water level rises, fill water is forced out of the tube over the overflow section and the rubber dam deflates automatically
• Emergency discharge by gravity drive through the drain or deflation valve.
The automatic safety system consists of:
Power failure / Safe solution
• Also in such a case security against flooding is given, to hold or to lower the reservoir level no power supply is needed
• Just the automatic level-control is off during this time
• As soon as power comes back, the filling pump or air blower will be activated and the head water level comes under automatic control again.
Hydroconstruct Rubber Dams
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