Steam engine at Rhomberg's factory
The steam engine Rhombergs factory ( 420 m above sea level ) was built in 1912 by the "Erste Brünner Maschinenfabriks-Gesellschaft" in Brno for the company Textil Rhomberg (house name: "Färbers") and was given the number 3354. This was the first steam engine the company Textil Rhomberg and in this textile company for 80 years from 1912 to 1992 in operation.
In Austria it is the last steam engine of this type in connection with a power-heat coupling and this is completely preserved with a centrifugal governor.
In addition to this steam engine, a steam turbine for generating electrical energy had been in operation since the 1960s . The turbine, which has now been dismantled, had a speed of 8000 rpm.
Design of the steam engine
The steam engine is designed as a combined heat and power unit . The superheated steam made available by the former thermal power station (steam boiler) was passed through the steam engine, which in turn drove a generator to generate electrical energy. The processed steam with a residual pressure of around 6 bar was used as process heat in textile production (finishing, printing).
Technical data of the unit
This steam engine is a small version of a stationary, single-cylinder, horizontal counter-pressure piston steam engine with valve control and bypass valve:
Steam engine
- Manufacturer: First Brno Machinery Factory
- Year of construction: 1912;
- Year of assembly: 1912;
- Location: Powerhouse Rhombergs factory, Färbergasse, Dornbirn
- Function: generating electrical energy;
- Power: approx. 600 PS (441 kW );
- Steam pressure: 12 to 15 bar ;
- Residual pressure of the processed steam: approx. 6 bar
- Speed approx. 125 / min;
- Cylinder:
- Diameter 600 mm;
- Stroke 950 mm;
- Total weight: about 35 tons
generator
- Manufacturer: AEG Union, No .: 32879
- Type: NED 125/350 (DC-excited synchronous machine)
- Revolutions: 125 / min.
Generator before the conversion in 1954
- Power: 350 kVA
- Generator voltage: 3000 V
- Stator voltage: 160 V
- Rotor voltage: 150 V
- Current: 1260 A.
- Frequency: 50 Hz
Generator after the conversion in 1954
- Power: 330 kVA
- Generator voltage: 220/380 V
- Electricity: around 800 A.
- Frequency: 50 Hz.
Redevelopment
The steam engine in Rhomberg's factory in Dornbirn was professionally restored in 2006 and 2007 by the Vorarlberger Technisches Verein (VTV), working group “Steam Engine”, by Walter Bröll, Helmut Schelling and Adolf Gstöhl with the accompanying support of the Federal Monuments Office in around 960 working hours.
literature
- Christoph Bernoulli: Bernoulli's steam engine theory. Basel 1865.
- Friedrich Freytag: The fixed steam engines; Bernoulli's steam engine theory. Berlin 1911, Springer Verlag.
- Hermann Gottwald: Machine tool construction in Austria in the 19th and 20th centuries. Vienna 2008, diploma thesis, online: [1]
- Hans Nägele: Dornbirn entrepreneur. Lustenau 1965, p. 42.
Web links
See also
- further preserved steam engine in Dornbirn: steam engine Kuhn No. 100
Individual evidence
- ^ A forerunner society was founded in 1814 in the former Paulan monastery of Šlapanice (Schlapanitz). The Erste Brno Machine Factory (AG) emerged from this (in short: "First Brno"). Among other things, the company developed the first Luz steam engine in 1824 and was involved in a turbine and boiler cartel, which also included the Bohemian-Moravian Piston Danek, the Škodawerke and the Witkowitz Ironworks. See also the commemorative publication of the First Brno Machine Factory / First Bruenner Festschrift 1973 and the company's history .
- ↑ Walter Bröll was also one of the last machinists on this steam engine or CHP unit .
Coordinates: 47 ° 25 ′ 20.5 ″ N , 9 ° 44 ′ 15.5 ″ E