Structure and Principle
Structural Form: In multi-stage centrifugal compressors, multiple impellers are arranged axially to gradually increase pressure. The impellers come in various types such as radial impellers, and depending on the required pressure and/or flow rate, a single or multiple impellers can be installed.
Working Principle: By increasing the kinetic energy of air particles and suddenly decelerating them, pressure is accumulated, thereby achieving air compression.
Performance Characteristics
High Efficiency and Durability: Each pressure model has specially optimized impellers, which are durable and make centrifugal compressors a very reliable machine.
High-Quality Materials: Some compressor impellers are machined from solid forgings, providing additional strength. For example, the impellers of the eight-stage GT series carbon dioxide compressor.
Design Optimization: Using a three-element backward curved impeller with precise casting for efficient overall performance design, the back-to-back rotors allow each impeller to operate at optimal performance and can also balance out most of the axial forces, reducing mechanical operating components and improving operational reliability.
