On October 15, Dongfang Steam Turbine's comprehensive test platform for large-scale compressors was completed and put into operation in Deyang. It is the largest comprehensive compressor test platform in China. Construction of the platform began in May 2024, aiming to further enhance the performance and reliability of domestically produced major compressors.

Dongfang Turbine's comprehensive test platform for large-scale compressors. Photo courtesy of Dongfang Turbine

A compressor is an industrial device that pressurizes gas and serves as critical equipment for clean energy systems. It can be regarded as the "power heart" of energy storage and transportation, new energy storage, and industrial energy conservation sectors. In recent years, Dongfang Steam Turbine has continued to focus on the independent research and development and industrialization of compressors, establishing R&D and manufacturing capabilities across a full spectrum of centrifugal, axial, and multi-shaft geared compressor units, thereby providing strong support for the construction of this platform.

The newly commissioned platform integrates three major functions: fundamental research, prototype validation, and pre-delivery inspection. Specifically, the platform can test compressor performance at various stages and accumulate aerodynamic design data to support unit design; it can verify overall machine performance and reliability, removing obstacles to the engineering application of first-of-their-kind products; and it can conduct pre-delivery mechanical running and performance tests in accordance with international standards to ensure compliant product delivery.

The platform comprises three coordinated test benches, boasting leading domestic compressor testing capabilities. Among them, the 50-megawatt test bench is the largest motor double-drive test platform in China, capable of testing high-power compressors. Gearboxes on both sides of the motor drive the test specimens, accommodating both high-speed/low-torque and low-speed/high-torque operating conditions. The 10-megawatt test system primarily targets applications such as natural gas pipeline transmission, carbon capture, utilization and storage (CCUS), and supercritical carbon dioxide power generation. Additionally, a basic test system is dedicated to fundamental research, including impeller development.

Currently, Dongfang Steam Turbine has mastered complete compressor package design capabilities, moving beyond the traditional single-equipment supply model to leverage full-chain system integration advantages. The company can now provide a one-stop solution for all core equipment, including compressors, motors, frequency converters, and control systems, achieving high compatibility among equipment, systems, and interfaces. The commissioning of this platform marks the successful establishment of a complete R&D closed loop for compressors at Dongfang Steam Turbine, covering design, manufacturing, testing, and validation. Building on this foundation, the platform will consolidate testing standards, set industry benchmarks, translate testing capabilities into technical authority, and drive coordinated advancement across the upstream and downstream industrial chains.

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