Siemens Air Separation Compressor Development History and Product Technical Features

The development history of Siemens air separation compressor is also the history of Siemens leading the continuous innovation and development of the global integral tooth compressor. From the birth and patent registration of the world's first integral tooth compressor for air separation in 1948, to the current world's largest tooth compressor. In the past 70 years, Siemens has created several world firsts and has always occupied the technical top of the overall gear compressor.

The development history of Siemens air separation compressor

1948: The first gear air compressor (VK series, patented). More than 4,000 machines sold with a flow rate of over 700,000m3/h

1953: The first steam driven gear compressor

1958: First geared nitrogen press, over 280 machines sold

1971: Manufacture of the first VK-200 compressor, the largest compressor of the VK series

1977: The first high-pressure gear compressors (HVK-series), more than 260 machines sold, rated power up to 50MW and discharge pressure up to 80bar

1983: First 6-stage gear compressor, over 160 machines sold

1988: The first toothed oxygen compressor

1990: First dry gas hermetic compressor, over 50 machines sold

1994: Manufacture of the first standard gear compressor (CVK series)

1998: The first 4-axis 7-stage gear compressor

2005: Renamed: VK/HVK renamed to STC-GV series

2009: Largest air compressor STC-GV(200-4): 700,000m3/h flow, 97 MW

2010: STC-GC flow increased to 400,000m3/h air volume. The first high pressure CO2 compressor with discharge pressure up to 160bara

2015: The first 4-axis electric drive STV-GV (200) compressor

2016: The first steam turbine direct drive STC-GV compressor

2021: First steam turbine direct drive STC-GV-H compressor

Technical Features of Siemens Integral Gear Compressor

•Single-stage impeller speed matching optimization, high efficiency and reliability

•The impeller and volute of each stage of the compressor can be disassembled separately for easy maintenance

• The impeller uses a face-tooth connection to ensure stable operation of the compressor under the harshest process conditions

• The compressor host is installed as a whole, and the installation time is short

• External cooler, in addition to easy cleaning and maintenance, the cooler can also be appropriately flexibly designed according to different water quality conditions

• The height of the workshop required for the compressor unit is low, and the traveling tonnage required for maintenance is small

Siemens Air Separation Compressor Product Line and Technical Features

Siemens not only has the world's first-class air separation compressor, but also has the world's absolute first driving steam turbine. Its new generation SST-600 steam turbine for driving air separation compressor has higher reliability and shorter start-up. time and greater efficiency.

• Rotor integral forging

• External main steam valve and control valve

• The upper and lower shells are symmetrical, the temperature distribution is uniform, and the start-up time can be shortened by 1/3.

•High pressure steam turbine with independent control oil station, precise control

•Blade types are more abundant, the steam inlet flow channel is more optimized, and the aerodynamic efficiency is better.

• The rotor dynamics and thrust system of the whole unit are fully optimized, and the operation stability of the unit is improved by a grade.

• Under the condition of the same specification of steam turbine, compared with domestic first-class products, the efficiency of the whole steam turbine is increased by ~5%; compared with international first-class products, the efficiency is increased by 1.5~2%.