SŽD series 23
| 23-001 (UU) | |
|---|---|
.jpg) 23-001
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| Numbering: | 23-001 |
| Number: | 1 |
| Manufacturer: | Locomotive factory Ulan-Ude |
| Year of construction (s): | 1949 |
| Retirement: | 1960s |
| Axis formula : | 1'E2 'h2 |
| Gauge : | 1524 mm |
| Length: | 17,765 mm |
| Empty mass: | 149.1 t |
| Service mass: | 167.6 t |
| Friction mass: | 112.7 t |
| Wheel set mass : | 23 t |
| Top speed: | 90 km / h |
| Indexed performance : | 2800 hp - 3180 hp |
| Driving wheel diameter: | 1630 mm |
| Impeller diameter front: | 900 mm |
| Rear wheel diameter: | 1030 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 670 mm |
| Piston stroke: | 825 mm |
| Boiler overpressure: | 16 bar |
| Grate area: | 8.2 m² |
| Superheater area : | 163.9 m² |
| Evaporation heating surface: | 331.6 m² |
| Service weight of the tender: | 46.9 t (empty weight) |
| Water supply: | 50 m³ |
| Fuel supply: | 24 t |
| Particularities: | reinforced version of the ФД series |
The SŽD class 23 was a steam locomotive of the Soviet Railways (SŽD) in Russian broad gauge , delivered in 1949. The series designation was derived from the axle load of the locomotive with 23 t. It is not uncommon for the locomotive to be referred to in the literature as the series уу ( UU ) after the manufacturer Lokomotivfabrik Ulan-Ude . It was built as a test locomotive in the period after the end of the German-Soviet War , when there was a great increase in freight traffic. Only one copy was built.
prehistory
After the end of the Great Patriotic War , freight traffic in the Soviet Union increased in connection with the restoration of the national economy. This required more powerful locomotives than the CO and Л series currently in production . The continuation of the SŽD series ФД was ruled out due to some construction defects (weak frame, insufficient efficiency).
At that time, the R 50 rail profile with a mass of 50 kg / m was installed on the main lines in the USSR , which made it possible to increase the permissible axle load to 23 tons. The ФД series locomotives had a coupled axle load of 20 tons. In 1946, a commission for the selection of new types of locomotives, chaired by Sergei Petrovitsch Suichomjatnikov, recommended the development of a steam locomotive with a friction mass of 112 to 115 t. The locomotives of this series were to have five coupling axles with an axle load of 22.5 to 23 tons. The Ulan-Ude , Lugansk and Kolomna locomotive factories were commissioned with the development . The manufacturers chose different approaches for the construction.
The designers of the Kolomna locomotive factory assumed that the axle pressure would be maintained at 19 t, but the number of axles should be increased to accommodate a more powerful boiler. Therefore, this locomotive could be used on most of the lines in the USSR. Soon after, a class П34 test locomotive appeared .
The designers of the Luhansk locomotive factory designed a locomotive with a Brown engine , in which the crosshead could be omitted and the reciprocating masses could also be reduced. The cylinders were in the middle of the vehicle above the coupling axles and acted on two-armed transmission levers, at the lower end of which the connecting rods were hinged. The locomotive was given the series designation ОР23 .
Fate of the locomotive
The Ulan-Ude locomotive factory presented a steam locomotive based on the ФД series. It had been reinforced in some parts and equipped with a new, larger boiler. The locomotive was designed under the direction of the main designer PM Scharoiko and completed with the preliminary series designation УУ in 1949. The characteristic feature of the locomotive was the high axle load of 23 tons.
Of the above-mentioned test locomotives, this locomotive has proven itself best and is said to have developed an output of up to 4200 hp.
After the completion of the traction and thermal tests at the All-Russian Research Institute for Rail Transport in 1950, the locomotive with the series designation 23 for operational testing in the Krasnyj Lyman Север (North) depot , where it was used with steam locomotives of the ФД series. It ran successfully until 1960 on the difficult sections around Krasnyj Lyman.
In February 1956, however, it was decided at the 20th party congress of the CPSU not to build any more steam locomotives. Instead, only diesel locomotives and electric locomotives were to be manufactured. This meant that the prerequisites for series production were no longer applicable, although the test locomotive was impressive in terms of performance and consumption. The literature does not reveal further use or the retirement dates.
See also
literature
- The model railroader 11/1977, From the history of Soviet steam locomotives, page 331, organ of the DMV