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The information processing system of multi-stage centrifugal turbine compressor antisurge design

Author: YuanPeng
Tutor: CaoWeiHua；WuZhiBing
School: Central South University
Course: Control Engineering
Keywords: Centrifugal turbine compressor DCS Fuzzy Control Surge experiments Anti-surge control
CLC: TH452
Type: Master's thesis
Year: 2010
Downloads: 45
Quote: 0
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Abstract


The oxygen generator is an important part of the steel industry , which bear the production of iron, steel, rolled most of the gas supply of oxygen, nitrogen , argon gas , and other tasks , for ironmaking oxygen enrichment rate and expand the steel refining capacity to provide an effective guarantee . Wherein the centrifugal air turbine compressor system is one of the most important part of the entire oxygen generator process , its main function is used to increase the air pressure, to provide feed air and the energy for the entire oxygen generator process . Surge phenomena affect the the centrifugal turbine compressor stable operation of the most important factors . For a long time , the compressor anti- surge control basic classical PID control mutations do not respond in a timely manner for the operating conditions of the compressor , cause compressor surge parking , thus affecting the entire subsequent production . Therefore it is necessary to improve the existing anti-surge control , prevent surge occurred . The paper first introduces the development status and application of domestic and international compressor anti- surge control ; consolidated under the premise of a variety of existing compressor anti- surge control system solutions , based on centrifugal turbine compressor anti- surge control scheme for research purposes , this article describes the work performance of centrifugal compressor and compressor surge characteristics and anti- surge control system specific analysis ; through research of various antisurge program and combined with the actual worked out of the control scheme used in this paper : to FOXBRO DCS system hardware platform , designed a fuzzy controller to control reflux valve and a self- tuning the sp value PID controller anti -surge valve . The compressor information processing and Antisurge System after LIANGANG # 30000 oxygen generator operational effectively guide the operator through the change control system monitoring the condition of the compressor ; timely response to fluctuations in the working conditions of the compressor , to prevent the surge the occurrence , can effectively reduce the system cost and improve the economic efficiency of enterprises .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Gas compression and transportation machinery > Compressors, compressor > Centrifugal
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