Steam turbines

Classification of steam turbines for CHP
5
10
15
20
25
Давление свежего пара, МПа
50
100
150
200
250
300
350
Мощность, МВт

Class Р.1: single-casing back-pressure turbines with a straight steam flow in thecasing. Capacity range is from 25 MW to 80 MW, live pressure is from 4.5 to 12.8 MPa (45-130 kgf/cm2). The turbine exhaust can be organized both for industrial header and for heat extraction generations. The front and rear bearings are made in the remote separate bodies resting on the proper foundation frames. The turbine features the possibility to organize single-stage controlled heat extraction with a capacity of up to 150 Gcal/h (backpressure), as well as controlled and uncontrolled industrial steam bleeding for auxiliaries with a capacity of up to 200 t/h.

Characteristics

Values

Main type of the turbine

Back-pressure

Basic design feature

Single-casing with a straight steam flow

Steam distribution type

Throttle/nozzle

Electricity output range, MW

25-80

Main steam characteristics:

- Pressure, MPa

4.5-12.8

- Temperature, °С

400-560

Capability of steam bleeding for heating:

- Scheme

Controlled steam bleeding; Single-stage delivery water heating

- Maximum heating load, Gcal/h

50-150

- Steam extraction flow rate, t/h

100-290

Capability of steam bleeding for industrialuse:

- Flow rate, t/h:

50-200 t/h

- Scheme

Non-controlled / controlled steam bleeding

- Guaranteed pressure, MPa

0.13-3.4

Back-pressure

To the industrial/to heating

Turbines of this class

ПР-30-8,8/1,0/0,13, Р-38-12,8/3,4, Р-40-12,8/3,1


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Izotin Dmitri
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