Process Performance Real-time Monitoring And Assessment Techniques In Applied Research, A Large Compressor Device

The stuff of turbine group of Dalian University of Technology insists on the principle which combines theory with practice and focus on solving the engineering problem. They have been working on the research and development of the critical equipment of petrochemical industry, turbine compressor, emphasizing particularly on online inspection and evaluation of compressor group.'The online inspection and evaluation system software of centrifugal compressor running performance 'is an example and the paper is from it.The advantage of former inspection and evaluation system is inherited and a lot of work is done in the software generalization. The precision is promoted because the system uses L-K equation and M-L equation to analysis the thermodynamics property of monomeric gas and mixture gas aimed at polarity and nonpolarity media respective. We establish a simulative compressor characteristic curve library by means of modulus matrix fitting. Several important parameters such as out pressure, levity efficiency and shaft-consume power are calculated accurately to indicate compressor running -performance and expectation value is gained on the base of similarity conversion principle. Evaluation value is gotten by comparison and real-time showed in graphics mode. Anti-surge is given in term of different adjust method for solving dangerous point of compressor. 'Rapidly create system of compressor technical process drawing' is finished to meet the need of generalization.Now the research works is finished and results meet the need of design requirement based on the large numbers of real cases calculation and inspection. It received the authorization of Shenyang Blower Works and is waiting for the last check and accept.