Geared for POWER GENERATION

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Avis Roberts
5 years ago
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1 Geared for POWER GENERATION

2 a world leader As pressure on the earth s resources grows, efficient and economic power generation is an absolute necessity.

3 Power generation applications rely on innovative engineering technology to ensure maximum output with minimum costs. Allen Gears is recognised as the world-leading manufacturer of high performance epicyclic and parallel shaft gearboxes for power generation and prides itself in providing its customers with the most innovative, appropriate and cost-effective response; delivering the right solutions and service support to suit specific business requirements and expectations. Our latest range of epicyclic gearbox options provide greater mechanical efficiency, reduced power loss and substantial cost savings. 3,000 gearbox installations confirm our position as market leader in the 3-25 MW power range; a position we have achieved by optimising designs for both series and one-off productions which provide a number of advantages in gas turbine applications. The latest generation of compound star epicyclic gearboxes - developed directly from proven technology - offer the ultimate in compact gear design, particularly suitable for high-ratio installations. The wide range of power and speed combinations of our gearboxes ensures that for innovative gearbox design and manufacture, Allen Gears sets the standard.

The benefit of the free-standing gearbox lies in its simplicity and ability to accommodate a wide variety

The inherent flexibility of the design makes it easy to accommodate power take-offs (PTOs) and power

universal application - suitable for both aero derived and industrial engines simplified interfacing clear

4 The benefit of the free-standing gearbox lies in its simplicity and ability to accommodate a wide variety of user preferences. The inherent flexibility of the design makes it easy to accommodate power take-offs (PTOs) and power take-ins (PTIs) simplifying the skid layout. universal application - suitable for both aero derived and industrial engines simplified interfacing clear access to turbine and generator option for low speed flexible quill shaft coupling suitable for use with single bearing generators. Free-standing gearboxes can incorporate up to five auxiliary drives for pumps, starters and barring systems. free-standing Allen free-standing horizontal star epicyclic gearbox, within this steam turbine package for Holstebro combined cycle power station in Denmark, is rated at 32,750 kw, 6,587 to 1500 rpm with barring drive and lubricating pump.

Allen Gears is one of the few manufacturers to offer the ultimate in compact, security assured designs - the engine-mounted gearbox.

the arrangement also makes the best use of the integral high speed coupling which is provided as standard with all Allen Gears epicyclic gearboxes.

eliminates turbine/gearbox misalignment reduces skid length allows acceptance testing of turbine/gearbox assembly The largest of a family of gearboxes the 16,500 kw Titan unit

5 Allen Gears is one of the few manufacturers to offer the ultimate in compact, security assured designs - the engine-mounted gearbox. In this integrated design, the turbine and gearbox casings are directly connected, significantly reducing package length and cost.the arrangement also makes the best use of the integral high speed coupling which is provided as standard with all Allen Gears epicyclic gearboxes. Among the key benefits of this solution is an assured alignment between the turbine and gearbox, ensuring accurate re-assembly following overhauls and refits. eliminates turbine/gearbox misalignment reduces skid length allows acceptance testing of turbine/gearbox assembly The largest of a family of gearboxes the 16,500 kw Titan unit supplied to Solar, features an end assembled gear cluster for minimum length. Auxiliary drives for twin starters and an oil pump are also provided. engine-mounted Like all Allen gearboxes for power generation this 10,000 kw example for the ALSTOM Tempest package has identical terminal points for both 50Hz and 60Hz applications.

Allen Gears generator-mounted gearbox represents the optimum cost and space solution for hot end drive (HED) turbine packages.

The generator-mounted gearbox contains fewer components, which reduces cost.

eliminates generator/gearbox misalignment highest possible efficiency due to elimination of low speed bearing minimum weight - important for mobile or offshore installations reduces

6 Allen Gears generator-mounted gearbox represents the optimum cost and space solution for hot end drive (HED) turbine packages. Today, with over 250 units installed and power ratings approaching 20 MW, Allen Gears is well positioned to ensure the success of generator-mounted package designs. The generator-mounted gearbox contains fewer components, which reduces cost. It also allows the turbine OEM/packager to take delivery of a fully assembled and tested generator and gearbox. eliminates generator/gearbox misalignment highest possible efficiency due to elimination of low speed bearing minimum weight - important for mobile or offshore installations reduces skid length - no low speed flexible coupling Allen Gears has permanent test rigs simulating a range of generator end shield designs which enable these gearboxes to be fully tested prior to installation. generator mounted This part assembled Centrax package based on the Roll-Royce Allison 6,500 kw KB7 turbine clearly shows the close connection between gearbox and generator. Starter and oil pump drives complete the specification.

In supplying the most appropriate gearbox solution for all its customers, Allen Gears manufactures high specification parallel shaft gearboxes for applications

Particularly suited to high power, low ratio packages, the advantages of multipurpose parallel shaft gearboxes include: vertical or horizontal offset design

barring systems option for common generator/gearbox oil system option for high and low speed quill shafts.

7 In supplying the most appropriate gearbox solution for all its customers, Allen Gears manufactures high specification parallel shaft gearboxes for applications up to 45 MW. Particularly suited to high power, low ratio packages, the advantages of multipurpose parallel shaft gearboxes include: vertical or horizontal offset design simplicity and access for instrumentation widely understood technology - applicable to AGMA/API specifications option for PTOs/PTIs, including starter and barring systems option for common generator/gearbox oil system option for high and low speed quill shafts. A parallel shaft unit for a steam turbine installed at Thomas Tait Paper Mill, UK; whilst the diagram demonstrates a simplified view of one of many units supplied to Kawasaki for their M7A-02 programme. parallel shaft Vertically offset parallel shaft gearbox for use with the 45,000 kw GE LM6000 incorporates a low speed quill shaft and motorised barring drive system.

8 Allen Gears Limited Atlas Works Pershore Worcestershire WRI0 2BZ United Kingdom T. +44 (0) F. +44 (0) E. allengears.com POWER GENERATION HYDRO POWER MARINE PROPULSION OIL & GAS WIND POWER SERVICES Our dedicated Service facility provides gearbox inspections, overhauls, repairs, refurbishments and upgrades. Created by Lassoo: +44 (0)

Geared for OIL & GAS

Geared for OIL & GAS space saving, efficient, reliable......and over 40 years experience in supplying precision gearing to the oil and gas industry. For more than 40 years, Allen Gears has been partnering