The extraction condensing turbines are used when a constant pressure steam flow has to be extracted for process purposes. The constructional characteristics of these turbines are very similar to condensing turbines from the second admission valve chest it is possible to inject low pressure steam, available in the plant to supply the power required by the plant.
These turbines are typically used for co-generation where the turbine meets both the power and steam demand of the process plant. In these type of turbines the power generated can be maintained more or less at a steady level despite variation in process steam demands. In some cases it may be necessary to have both bleed and controlled extraction steams from the condensing turbine. These turbines are of bleed cum extraction condensing type.
Back pressure turbines can either be single stage or multi-stage which are often used in industrial plants, the turbine serves as a reducing station between boiler and the process steam header.
These turbines can either be used for drive application (Sugar mill drives, Sugar fibrizor / Shredder drive, Pump drives and so on) or power generation application in which case the turbine drives the generator. These turbines are straight-back pressure type and find application where back pressure steam is fully utilized to meet process demands. The power generation is incidental to the process steam demand.
The back pressure turbine may also have bleed points (uncontrolled extractions) to satisfy steam demands at intermediate pressures, This provision is applicable when the bleed (medium pressure) steam volume demand is low and pressure variations can be tolerated. These turbines are of bleed cum back pressure type.
The back pressure turbine with one controlled extraction point is possible, this extraction steam is also used to meet process steam demand at intermediate pressure when volume demand is high and pressure variations cannot be tolerated. These turbines are of extraction cum back pressure type.
Proven reliability and high efficiency makes Kessels multi-stage steam turbines vital partners with the power and process industries.
High fuel and energy conversion costs demand that steam turbine efficiency be as much a consideration as reliability. Kessels industrial multi-stage steam turbine line helps you meet a variety of energy requirements in industrial environments. These turbines operate at speeds up to 12,000 RPM, with steam inlet conditions up to 105 bar at 560oC, and exhaust conditions up to 12 bar.
Back pressure turbines can either be single stage or multi-stage which are often used in industrial plants, the turbine serves as a reducing station between boiler and the process steam header.
These turbines can either be used for drive application (sugar mill drives, sugar fibrizor / shredder drive, pump drives and so on) or power generation application in which case the turbine drives the generator. These turbines are straight-back pressure type and find application where back pressure steam is fully utilized to meet process demands. The power generation is incidental to the process steam demand.
The back pressure turbine may also have bleed points (uncontrolled extractions) to satisfy steam demands at intermediate pressures, this provision is applicable when the bleed (medium pressure) steam volume demand is low and pressure variations can be tolerated. These turbines are of bleed cum back pressure type.
