Сentrifugal compressors

5 Advantages

1. Easy Maintenance
2. Smart Operation System
3. High Reliability
4. Less Energy Consumption
5. Certified Class Zero Oil-free Air

Performance Advantages of Centrifugal Compressor:

♦ Easy Maintenance

• Customized coolers are suitable for various working conditions and they are easy for cleaning and maintenance.

♦ Smart Operation System

• Three operating modes can be realized by the control system: full constant pressure mode, automatic dual mode and self-balancing mode. It can intelligently adjust according to the actual operation conditions and gas demand to ensure that the equipment is always in a state of high efficiency, energy saving and stable operation.

♦ High Reliability

• Anti-surge control system avoids costly damage to the machine and production loss due to process interruption. Variable speed drive solution reduces the sudden current demand during the starting process of the centrifugal compressors. This avoids the voltage dips and other undesirable effects, especially when your power supply is limited.

♦ Less Energy Consumption

• Efficient impeller and stage design for excellent Specific Energy Requirement (SER). It helps lower your electric bills significantly and has a positive impact on the environment.

♦ Certified Class Zero Oil-free Air

• The centrifugal compressors were granted certificates of conformity with compressed air purity class for total oil 0, tested according to ISO 8573-1, which prevents oil from polluting your process system.

Main structure

Our centrifugal compressors are aerodynamically designed using advanced aerodynamic principles combined with highly efficient proprietary software, CFD modeling and other tools to ensure optimal compression ratio distribution between stages and consistent reliability; The Denair team’s years of product design experience, rich impeller database and design software ensure aerodynamic design excellence.

Professionally designed rotors and bearings ensure that they can operate under reasonable oil film temperature, pressure and thickness, effectively reducing bearing power consumption. Through extracting the stiffness and damping data from a large number of bearings, our conduct rotor dynamics analysis to ensure reasonable vibration value of the rotor as well as ensuring the rated speed setting is far away from the critical speed and enhancing the stability of the whole machine.

The electric actuator drives the airfoil stainless steel blades, precisely controls the opening of the inlet guide vanes, changes the pre-swirl value of the intake air, and improves the operating efficiency of the centrifugal compressor. When the compressed air demand is reduced, the IGV can save up to about 9% energy consumption, making the centrifugal compressor run efficiently and energy-saving.

The highly integrated control cabinet adopts PLC with touch display screen, which is concise and clear and easy-to-operate. Our controller supports multi-languages switching and all parameters read and displayed in real time, especially key information like running curves and numbers. Meanwhile, automatic alarm, chain shutdown protection, anti-surge and surge prediction fuction are available to ensure the safety and reliability of equipment operation.

Adopting modular design, the horizontally split gearbox is integrally cast with volutes at all stages while the cooler box is integrally cast design. Compared with the splitted and welded gearbox, compression unit of horizontal one is with higher strength mechanism, fewer processing surfaces, more reliable operation and there is no assembly error, no deformation, low noise and low vibration between the volute and the gear box at all stages. Compared with integral casting, processing, assembly, transportation, on-site installation and maintenance f or our coolers are simpler. When compression unit needs to be returned to the factory for overhaul, the integral casting requires larger lifting equipment and destroys the installation foundation, resulting in secondary installation but ours, which is modular design, perfectly solve this problem.

Through the professional design of rotor dynamics, the tilting pad bearing with high load capacity and low vibration is adopted. The bearing bush can be automatically adjusted according to the load and temperature changes, so as to ensure the stable operation of the unit under various harsh working conditions.

Industry Application

• Pharmaceutical
• Automotive / Manufacturing
• Aerospace
• Metal Smelting
• Chemical
• Textile and Chemical Fiber