Turbo Compressors
Howden supplies the Donkin range of "SG" integrally geared, single stage turbo-compressors. Modular single stage units providing flows up to 35m3/s and pressures up to 3 bar. For special applications, engineered single-stage turbo- compressors are available to provide flow rates of up to 50m3/s and multistage turbo compressors for pressures of up to 5 bar.
Bryan Donkin Blowers, one of the longest established designers of rotary blowers and compressors with a history extending back to 1856, was acquired by Howden in 1997.
Engineered to suit our customers’ most stringent requirements, the Donkin “SG
” range integrates an overhung high efficiency impeller, precision gears and high stability bearings for a smooth and efficient transmission. All our sets incorporate turbo-compressor, driver, pressurized oil lubrication systems, controls, instrumentation and protection systems.
Features & Benefits
- very high efficiency (approx 85%) that is little affected by part load running
- inherent anti-surge protection - steep pressure/volume curve to give inherent stability and protection against surge
- flow control - variable flow by means of variable vane diffusers, pre-rotational inlet guide vanes or a combination of both systems
- control system - is designed to maximize operating efficiency and provide infinitely variable capacities over a wide duty range. Fully automatic capacity control is achieved from a single input signal, processed and relayed to the electric, pneumatic or hydraulic, guide vane actuators
- skid mounted with integral lubrication - compact packaged unit, factory assembled on underbed to minimize installation time
- maximized system efficiency - overall plant efficiency is maximized with our 'load sharing system ' control philosophy
Applications
- sulphur recovery - air blowers providing reaction air for the catalytic recovery of sulphur within the petrochemical industry.
- sulphuric acid plant - combustion air blowers and process gas mixture cleaning, sometimes combined
- flue gas desulphurization - oxidation air blowers associated with the cleaning of flue gases produced within power and heavy industry
- industrial effluent treatment - aeration blowers associated with the biological treatment of effluent within industrial plants.
- furnace/smelter/reactor air supply - air blowers providing combustion or reaction air primarily for the petrochemical and metals industries
- process gas blowers - blowers handling a wide range of process gases for the petrochemical and heavy industry
- fuel gas blowers - blowers handling natural and "dirty" coke-oven, manufactured, landfill and other bio gases. (landfill extraction)
- carbon black plant - air blowers providing combustion air for the associated furnaces.
- waste water treatment - aeration blowers associated with the biological treatment of effluent in municipal sewage treatment plants.
- fermentation - air blowers associated with biochemical fermentation within pharmaceutical and yeast production industry
Standard & Certifications
- our customized packaged sets are designed to comply with the requirements of international standards such as API, ASME (VIII DIV1), BS, DIN, GOST, AD.
- all machines bear the European Standard’s C.E. mark (when supplied within the European Union). Our quality systems have been assessed/approved by a third party to ISO 9001:2000, ensuring consistent quality throughout all aspects of the design and manufacture.