Vortex Drop Shaft0 pages

Water & Wastewater
Hydro Vortex Drop™ Shaft
Safer and more economical than simple vortex drop shafts.
The Hydro Vortex Drop™ Shaft is a compact, single shaft system used in water conveyance tunnels to dissipate the
energy of dropping water from height in order to protect infrastructure from noise, vibration and damage.
Vortex Mode
Applications
•t
Drop heights of up to 30 m.
•t
Flood control.
•t
CSO systems.
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Inlet
Chamber
Stormwater systems.
Advantages
•t
•t
•t
•t
•t
Air Switch
Pipe
No requirement to keep an air core within the drop pipes,
therefore pipe sizes are significantly reduced.
No need for auxiliary air and/or maintenance shafts.
Safe, controlled and efficient.
Self-activating with no moving parts.
A multiple pipe arrangement can be used to accommodate
higher flow rates.
Energy
Dissipation
Unit
Design
Drop
Shaft
Outlet
Pipe
The Hydro Vortex Drop™ Shaft is designed to operate safely in both the air entrained ‘vortex’ and ‘pipe full’ modes and ensures
a smooth transition between the different modes of operation. At low flows the drop pipes operate in the vortex mode, whilst at
design flows they operate in pipe full mode.
Energy Dissipation
Energy
Dissipation Unit
The Hydro Vortex Energy Dissipation Unit (EDU) is a simple,
self-activating energy dissipation device. It is small compared to
conventional energy dissipation structures.
Sizing
The Hydro Vortex Drop™ Shaft operates under pipe full conditions at design flows.
•t There is no requirement to keep an air core within the drop pipes as in conventional designs therefore pipe sizes are significantly
reduced.
•t Typically flows of 0 - 2000 l/s can be transferred safely through drop heights of up to 30 m. The use of multiple pipes can
accommodate higher flow rates.
turning water around ...®
Tel: 01353 645700 • Fax: 01353 645702 • www.hydro-international.biz