Wednesday, December 17, 2008

SST-100 STEAM TURBINE (up to 8.5 MW)



SST-100 Steam Turbine (up to 8.5 MW)The SST-100 is a single-casing multi-stage steam turbine, providing geared drive to 1,500 and 1,800 rpm generators and packaged in a base frame-mounted design. It can be used for:

> Generator and mechanical drive.
> Co generation.
> Industrial power plants for e.g. sugar industry, textile industry, steel works and mines.

Back pressure or condensing turbines, where the steam path is adapted to the needs of the individual customer, provide an optimal solution when medium pressure and temperature conditions are available.

DESIGN CONCEPT:-

> SST-100Single-casing multi-stage steam turbine.
> Highly predefined proven and compact design.
> Workshop assembly.
> Oil system integrated in base frame.
> Separation of oil and steam piping.




The single body turbine SST-100 is designed for high thermo flexibility, permitting short start-up times and rapid load changes.

> The SST-100 in back pressure application.
> Steam-driven emergency stop valve.
> Double-seated control valves with hydraulic actuator.
> Up to six impulse stages.
> The rotor is made of solid forging or with forged discs shrink-mounted on the turbine shaft and keyed. It is short and rigid, resulting in operation well below first critical speed, using babbitt-lined sliding type bearings to assure a smooth and well-damped operation.
> Exhaust flange on side, bottom half of the casing.

The SST-100 in condensing application:-

The condensing turbine design is derived from the back pressure version. However, there are some design differences, for example:

> Up to seven impulse stages, including condensing stages.
> Exhaust casing is oriented downwards through the base frame or upwards, depending on the application.
> Diaphragm carrier for the last three stages.

SCOPE OF SUPPLY:-

SST-100
Each of the industrial steam turbines is available as a freestanding machine or as a package which includes generator (or another driven machine), gearbox, and all other auxiliary systems, normally mounted on a base frame. We can deliver each of our machines with the configuration that fits best to your needs.

LEGEND:-

1. Steam turbine.
2. Speed reduction gear.
3. Generator.
4. Base frame.
5. Concrete foundation.




DIMENSIONS:-

Length (L): 8 m / 26 ft.
Width (W): 3.7 m / 12.1 ft
Height (H): 3.4 m / 11.2 ft
Weight: 40 tons (oil-free)


TECHNICAL DATA:-

SST-100

All data are approximate and project-related.

> Power output: up to 8.5 MW.
> Rotational speed: up to 7,500 rpm.
> Inlet steam pressure: up to 65 bar / 945 psi.
> Inlet steam temperature: 480 °C / 895 °F.

EXHAUST PRESSURE:-

> Back pressure: up to 10 bar / 145 psi.
> Condensing: up to 1 bar / 14.5 psi.
> Exhaust area: 0.22 m² / 2.4 sq. ft.

BENEFITS:-

SST-100

> Cost effective, high reliable solution.
> Fast and early layout planning.
> Short delivery times because of highly predefined design of both turboset and package.
> Short on-site erection: turbine skid and gearbox / oil unit fully assembled in the workshop before shipping to site.
> Compact design - oil system fully integrated into the base frame.
> Proven components: highly standardized, robust blading; reduction gears taken from the existing range of world-class gear manufacturers.
> Increased safety: no leaks towards hot pipes; oil and steam piping separated.
> Easy maintenance with low maintenance costs

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