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Single Stage Turbocompressors
Siemens offers a full range of turbocompressors to meet the needs of the metallurgical, oil and gas and chemical industries. Single stage compressors and blowers with separate gearbox or integrated gearbox can be matched with a range of drivers – steam turbine or electric driver – in a solution to match each unique customer. One of the leading turbo machinery manufacturers with over 100 years of experience and continuous development, and a fleet of more than 4,000 installed turbocompressors and turboblowers; we are a prime partner for your business.
With our unrivalled competence in compressor unit solutions from a single source, Siemens offers a comprehensive range of pre-designed turbo compressor up to 353.400,00 cfm, with the flexibility to address the specific requirements for your application (Siemens Turbocompressor – STC™).
Our standard units with modular design ensure low investment costs and shortest delivery times.
Metallurgical, chemical and petrochemical plants as well as refineries are amongst the most common applications for our compression solutions.
We strictly adhere to the guidelines laid down in the quality standards ISO 9001 and ISO 14001. Not only the turbocompressors and blowers, but also associated field-proven high-tech products are available in the Siemens range. These include steam turbines and electric drivers, instrumentation and controls, as well as auxiliary and ancillary systems.
Siemens turbocompressors are designed and manufactured for challenging industrial applications:
Petrochemicals and Refineries
The design of turbocompressors meets the customer’s requirements, such as:
Highest Efficiency at High Speed
The Siemens STC-DO unit is the highest efficiency direct driven centrifugal compressor available today that utilizes a high-speed motor with the impeller mounted directly on the motor shaft. Our highly experienced aerodynamicists combined our unique Dual Point Control™ technology with an optimized air path and impeller design using the latest design software. This allows the highest efficiency throughout the widest turndown range in the industry. Siemens single stage direct drive unit (STC-DO) is a state-of-the-art design, specifically tailored to the unique environmental and process needs of the aeration market.
Wastewater treatment of:
The unique Dual Point control process allows to independently regulate theflow and head of the compressor, giving superior efficiency at design and especiallyoff design conditions. The control management system operates automaticallyand simultaneously the position of the variable diffuser vanes as well asthe Variable Frequency Drive (VFD).
The compressor flow function is managed through the diffuser vanes, or dischargecontrol vanes, which increase or decrease the airflow path exiting the impellerwheel, allowing a step-less turndown range from 100% to 35% or less withalmost no efficiency loss. The compressor head function is controlled by changingthe impeller rotational speed through the Variable Frequency Drive (VFD).The control methodology maintains the isentropic efficiency at its maximum relativevalue across a wider range of flow, water depth, and temperature conditions.
The variable diffuser system controls the flow by adjusting the angle of thediffuser vanes, which are positioned radially around the impeller.The vanes are flow-optimized nonsymmetrical airfoils, allowing adjustmentof the nozzle area, while still maintaining an excellent efficiency throughout theentire operational range of the compressor.
The VFD is designed to deliver the required power with the minimum vibration andelectrical noise. The VFD controls impeller speed to obtain highest efficiencyeven when the compressor is working under off-design conditions (low temperatureand/or pressure).
Siemens offers true plug and play including all required electrical filters as standard.
This system enables a longer lifetime, higher efficiency and reliability.
The core of the compressor is the impeller, which is machined from a solid forgedpiece of high-grade aluminum alloy and is statically and dynamically balanced.Siemens provides different impeller sizes for the STC-DO model for customizationto client requirements in terms of flow and ambient pressure conditions.
The electrical motor is a synchronous (permanent magnet) type, with permanentmagnet and carbon fiber sleeves mounted on the steel shaft. The motoris specially designed for high speed operation (speed range from 13,000 rpmto 41,000 rpm). All components are rated for continuous duty at the specifiedconditions.
Can operate at high speed and frequency, maintaining high efficiencyLow heat generationHigher overall efficiency compared to an induction motor.
The application of airfoil bearings results in improved efficiency, thanks to reducedfriction, and exceptionally long life with minimal maintenance since no lubricatingoil is required.
All components are integrated into a standardized, easily accessible enclosure,resulting in a reduced footprint solution. The enclosure includes the inlet filter,inlet silencer, compressor/motor unit, variable frequency drive (VFD), dischargecone/silencer, blow-off valve, cooling system, instrumentationand local control panel (LCP).
The enclosure can be fork-lifted and set in place. No anchoring, simply connect power and discharge piping, then push the start button.
A state-of-the-art, easy intuitive operation control panel lifts the interfacing to thenext level.
The sound attenuation is based on years of engineering knowledge and extensivetesting, resulting in a state of the art acoustic package.
The air is sucked through the air filter to the compressor inlet of which a smallpart is directed to the enclosure for cooling purpose, whereby the processair and internals of the enclosure are kept clean and dust free.
Airfoil bearing technology eliminates the need for an oil lubrication system. The airfilters are likewise easy to change. A liquid cooling system for the main crucial components (motor, VFD) extending their lifespan and reduce risk of failures.
Decades of long experience testing thousands of centrifugal compressorshave resulted in extensive know-how.
Combined with an advanced test rig this ensures the highest quality controlfor our Turbomachinery equipment.
Before leaving the factory each compressor is mechanically and functionally tested inour advanced test rig in accordance with our Standard Shop Test Specification. Thetest rigs are certified every year according to ISO 9001 and the calibration proceduresare conducted at regular intervals in accordance with ASME, ISO and APIinternational standards. All testing is performed in order to measure operatingdata for evaluation of conformity with specified data. The following will befulfilled during the rigorous testing: