HPP Rott, Salzburg, Austria

HPP Rott,
Salzburg, Austria
The Rott Hydropower Plant on the Saalach River.
Innovation and Competence
For this project Kuenz was responsible for all of the hydromechanical equipment,
as well as the trash rake cleaning system.
Kuenz designed and built the
hydromechanical equipment for
the Rott Hydropower Plant.
The weir with the three gates, of which each gate has a clear width of 9 meters.
The Rott hydropower plant at the German-Austrian border on the Saalach River is located above the Saalach
Bridge next to Freilassing, Germany, but still within the
city limits of Salzburg, Austria. Due to its advanced age,
the former power plant was technically and economically
obsolete. Therefore, the owner and operator, Salzburg
AG, decided to build a completely new power plant a few
meters beyond the existing installation. The power plant
was put into operation after about eighteen months of
«Despite the extreme cost
construction.
pressure, Kuenz was able to
Technical characteristics – weir.
design and successfully implement
The weir is designed as a three-bay weir with flap gates.
an ideal construction with the
Each gate has a clear width of 9 meters and a storage
level of 8.5 meters. Each gate has two hydraulic drive
cylinders with a ceramic-coated rod. The construction
has a special engineering feature that is particularly
best available technology.
»
Markus Matschl, Project Engineer, Salzburg AG
www.kuenz.com
Technical data for Rott hydropower plant.
With the development and construction of the
Rott power plant, Kuenz once more demonstrates
its technical ability, quality, and reliability as a
problem solver.
important in case of an emergency: If one hydraulic
cylinder fails, the gate is held on one side by the remaining
Data power plant:
functional cylinder.
Type of power plant:
run-of-the-river
power plant
Technical characteristics – power plant.
Drainage area:
1145 km²
Kuenz was responsible for the intake rake and intake
Average yearly output:
27,200 MWh
Maximum capacity:
5000 kW
stop logs, as well as the draft tube stop logs, which
Gross head:
10.1 m
are equipped with a hydraulic lifting unit. The intake
Design flow:
58.5 m³/s
stop logs consist of five elements with a clear width
Construction time:
18 months
of 6.5 meters and a height of 2.5 meters.
Data weir:
Technical characteristics – trash rake
cleaning machine.
Kuenz also delivered the trash rake cleaning machine,
type H500. This new concept works on the principle of a
hydraulic arm, which is similar to an excavator. The unit
is designed so that the intake stop logs can be set and
stored. The cleaning cycle runs in semiautomatic mode.
Specific feature and challenge.
The powerhouse is located in Germany due to the
configuration of the turbine inlets, which are located on a
curve of the Saalach River on the German side. Furthermore, due to the Eco-Electricity Act, government aid
from Germany for a power plant of that size was more
generous, which was a benefit for the project’s profitability.
Weir gate:
Number of gates:
3
Type of gates:
pressure gates with flaps
Clear height:
8.5 m
Weir flaps:
Number of gates:
3
Type of gates:
flap gate
Clear width:
7.0 m
Clear height:
3.55 m
Data hydromechanical equipment:
Intake rake:
Clear width:
2 x 6.5 m
Clear height:
8.1 m
Intake stop logs:
Number of stop logs:
5
Clear width:
6.5 m
In addition to the price aspect, a significant reason for
Span width:
6.8 m
the contract award by Salzburg AG to Kuenz was our
Clear height:
2.5 m
All from one source.
engineering experience with systems, such as using the
trash rake cleaning machine to set intake stop logs.
Data trash rake cleaning:
Kuenz’s services for this project included consulting,
Intake rake:
engineering, manufacturing, assembly, commissioning
Rack inclination:
approx. 70°
and training, as well as all benefits like material testing,
Width of rake:
2.5 m
Cleaning depth:
14.74 m
Cleaning capacity at rake:
3000 kg
Length of track:
48.65 m
Installed power:
approx. 17 kW
documentation and approvals.
Innovation and Competence
The best references
are successful projects.
Further information: www.kuenz.com
Atel Hydro AG
The Ruppoldingen power plant in Switzerland was provided
with the complete hydromechanical equipment for the power
plant and the weir by Kuenz. Trash rake cleaning starts
automatically using a conventional rope-driven machine.
E.ON Wasserkraft GmbH
For the customer E.ON Wasserkraft GmbH, Kuenz supplied hydromechanical
equipment as well as trash rake cleaning solutions for projects all over
Germany. The picture shows a hydraulic TRCM, model H500, with a
clear cleaning width of 3.5 m and a cleaning depth of 12 m. The TRCM
operates mainly in full automatic mode at the Langwedel power plant
located next to the Weser River.
Stadtwerke Feldkirch
For the Hochwuhr power plant in Austria, Kuenz delivered a
complete hydromechanical solution for the powerhouse and
weir. The trash rake cleaning machine, type H500 with a
capacity of 5 tons, also serves as a hoisting gear to set and
lift stop logs.
Hans Kuenz GmbH, 6971 Hard - Austria, Phone + 43 5574 6883 0, Fax + 43 5574 6883 19
[email protected], [email protected], www.kuenz.com
Innovation and Competence