Power plant saws
| Power plant saws | ||
|---|---|---|
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| location | ||
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| Coordinates | 47 ° 24 '25 " N , 9 ° 44' 36" E | |
| country |
 Austria
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| place | Dornbirn | |
| Waters | Mullerbach | |
| Kilometers of water | km 3.36 (Müllerbach) | |
| Height upstream | 443 m | |
| power plant | ||
| owner | Fa. FM Hammerle | |
| operator | formerly FM Hämmerle | |
| Start of planning | 1897 | |
| construction time | unknown | |
| Start of operation | probably 1897 | |
| Shutdown | 2000 | |
| Listed since | No | |
| technology | ||
| Bottleneck performance | 0.0615 megawatts | |
| Average height of fall |
4.33 m | |
| Expansion flow | 0.9 or 1.6 m³ / s | |
| Standard work capacity | 0.323 million kWh / year | |
| Turbines | 2 | |
| Generators | 1 | |
| Others | ||
| Website | no | |
The Sägen power plant is a small hydropower plant located in Dornbirn , Vorarlberg , Austria , in the Sägen parcel in the Markt district, and one of the power plants on the Müllerbach . The power plant is located approximately at river kilometer 3.36.
The Sägen power plant was one of around a dozen power plants on the Müllerbach. It has been out of service since 2000 and there are no plans to reactivate it. It was used to generate electrical energy for the colored weaving mill at Textilwerke FM Hämmerle with two Francis turbines .
The permit for the power plant has since expired due to non-use of the water rights .
history
In 1826 Johann Baptist Salzmann received official approval to build a spinning mill . He acquired the old Herburger sawmill on the Sägen plot, including the water rights to the Säger- or Mühlebächlein . In 1852 he built a mechanical cotton spinning mill with water power drive next to the old Herburger mill and wood saw at the current location . The mechanical drive initially took place, as can be deduced from the existing building foundations, by an oversized water wheel . In 1856, a steam engine with 30 HP from the Gottfried Kuhn machine factory in Stuttgart was purchased for the sawmill and later a small direct current generator was connected to the turbine shaft to generate energy for the lighting.
On June 1, 1895, FM Hämmerle bought the Sägen spinning mill, including the turbine house and steam house, from the bankruptcy estate of Johann Baptist Salzmann. A colored weaving mill was set up. In 1897 the hydropower drive was renewed and a JM Voith Francis turbine with 51.5 kW (70 hp ) rated power including an oil pressure regulator was installed and put into operation. In 1914 a second JM Voith Franzis turbine with a nominal output of 29.5 kW (40 PS) was installed and put into operation. As a result, the drive (belt) of the three-phase motor coupled to the transmission with a rated power of 33.1 kW and an operating voltage of 220 V was required. This generator was subsequently replaced by a high-voltage three-phase generator with 55.2 kW rated power and an operating voltage of 3 kV .
In 1927 the Sägen weaving mill was expanded to include a shed construction for 600 looms , and in 1936 the “Sägen-Shed” was enlarged to become Austria's largest weaving room.
In 1941 a three-phase generator was installed in the turbines in the basement for an operating voltage of 230/400 volts and 115 kW rated power at a speed of 750 revolutions per minute. The coupling to the turbine shaft (110 revolutions) took place via a leather flat belt. There was a possible bottleneck power of approx. 40 kW. The average standard energy capacity (measured from 1982 to 1985) was 85 MWh / year. The extension made it possible to dismantle the previously existing hall transmissions, including the vertical shaft .
As a result of the conversion to the war economy in 1942, four dormitories were set up for 40 military service girls on the upper floors of the Sägen building. In 1944, the Dornier-Flugzeugwerke Friedrichshafen set up a press mold and model construction workshop in the first weaving room (raised ground floor) building construction. Armored wheels were welded in the basement.
In 1947 a teaching weaving mill with individual loom drives by electric motors was set up in the building construction and in 1949 the colored weaving mill was expanded. The looms were now given individual drives. In 1971 a metalworking training workshop for machine fitters , electricians and textile mechanics was set up on the fourth floor of the building, and in 1972 a circular knitting and knitting shop (knitwear production) in the first hall in the building, which moved here from the FM Hämmerle subsidiary Charmella in Vienna . This circular knitting factory was discontinued in the Sägen company in 1981.
In 2000, the FM Hämmerle Textilwerke AG branch was sold to Josef Hahnl (decision of June 26, 2000), although this did not include the building construction of the Sägen weaving mill with the Sägen power plant. Hahnl subsequently sold the sawing plant to the city of Dornbirn (without machinery). The old Sägen weaving mill, building construction at Sägerstraße 4 remained the property of FM Hämmerle Holding AG, was renovated and rented to various tenants. The Sägen small hydropower plant in the basement was shut down in 2000.
Machine house
The machine house , in which the turbine, the generator and the control of the Sägen power station are located, is located in the basement of the former colored weaving mill of FM Hämmerle (now a commercial building).
The maintenance of the small power station in Sägen was the responsibility of the electrotechnical department of F M. Hämmerle.
Electrotechnical data
The generator is a three-phase asynchronous machine with a maximum output of 61.5 kW . Standard work capacity: 323 MWh, the actual annual output in 1992 was around 90 MWh, this corresponds to an average output of around 10 kW.
Hydraulic data
The water for the Sägen power plant was taken from the Müllerbach, which can have different water flow depending on the season and with regard to the amount of residual water in the Dornbirner Ach . The Müllerbach carries a maximum of 1850 liters / second usable in the area of the sawing power station.
This water was used by two Francis turbines with a horizontal shaft and a flow rate of 900 l / s (29.4 kW) or 1600 l / s (51.5 kW) at a usable head of 4.33 m.
literature
- Martin Trunk: Functional consideration of the Müllerbach and the resulting consequences of an endowment of the Dornbirner Ache . Thesis at the University of Natural Resources and Life Sciences, Vienna, Dipl.-Arb., 1992.
Web links
Individual evidence
- ↑ Information is from the company archive of the FM Hämmerle company, compiled by Franz Josef Huber (* 1926): “ Small power plant FM Hämmerle weaving mill saws ”, “ From the company history of saws ”.