采用切向进气扩大压气机流量范围的研究

Study on Tangent Air Admission to a Compressor for Enlarging Its Flow Range

介绍了压气机喘振的机理 ,分析了可调切向进气对压气机流量范围的影响 ,得出了最佳的切向进气在压气机进口的速度分布 .在此基础上 ,进行了利用切向进气减小压气机喘振流量的初步实验研究 ,结果表明 :切向进气能够有效降低压气机的喘振流量 ,可以实现扩大压气机流量范围的目的 .

The principle of compressor surging and the influence of tangent air admission to a compressor for enlarging its flow range are studied in this paper.The optimal velocity distribution at the entrance of the compressor when the flow is close to the surging district has been achieved by the theoretical analysis.Primary test results show that the tangent air admission can reduce the compressor surging flow effectively and realize the target of enlarging the flow range of compressor.