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 Н.1: single-casing turbines feature straight steam flow arrangement of low-pressure live steam the turbine from 1.4 to 2.2 MPa (14-22 kgf/cm2), capacity range is from 10 to 60 MW, last stage blade with a length from 550 to 660 mm (22-26 in) can be used. The turbine is assumed with both the radial exhaust to one water-cooled condenser and the axial exhaust to the air cooling condensing unit. The turbine body is made as welded or welded and forged.

Characteristics

Values

Main type of the turbine

Bottom-type; cogeneration / condensing

Basic design feature

Single-casing with a straight steam flow, welded casing

Steam distribution type

Throttle

Exhaust casing type

Radial / axial

Electricity output range, MW

10-60

Main steam characteristics:

- Pressure, MPa

1.4-2.2

- Temperature, °С

280-400

Capability of steam bleeding for heating:

- Scheme

Controlled steam bleeding; Single-stage / two-stage delivery water heating

- Maximum heating load, Gcal/h

50-120

- Steam bleeding flow rate, t/h

100-230

Characteristics of the main condenser

- Cooling water flow rate, m3/h

5,000-8,000

- Heat exchange surface area, m2

1,700-3,100

Turbines of this class

Т-35/55-1,6, К-55-1,6 (project)

Class Н.1.1: single-casing turbines with double-flow casing featuring two radial exhausts per one condenser or condenser group. Thelive steam pressure of the turbine is from 1.4 to 2.2 MPa (14-22 kgf/cm2), capacity range is from 10 to 60 MW, last stage blade with a length from 550 to 660 mm (22-26 in) can be used.

H.1.1 Class Turbines. Specification

Characteristics

Values

Main type of the turbine

Bottom-type; cogeneration

Basic design feature

Single-casing with a double-flow casing

Steam distribution type

Throttle

Exhaust casing type

Radial

Electricity output range, MW

10-60

Main steam characteristics:

- Pressure, MPa

1.4-2.2

- Temperature, °С

280-400

Characteristics of the main condenser

- Cooling water flow rate, m3/h

5,000-8,000

- Heat exchange surface area, m2

1,700-3,100

Turbines of this class

LPT-17, К-60-1,6 (project)


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