商用离心式冷水机组喘振分析与控制  

Surge analysis and control of commercial centrifugal chillers

作　　者：吴迪 李敏 WU Di;LI Min(Gree Electric(Hefei)Co.,Ltd.,Hefei 230088,China)

机构地区：[1]格力电器(合肥)有限公司,安徽改合肥230088

出　　处：《中国高新科技》2023年第22期122-124,共3页

基　　金：安徽省科技重大专项项目(202103a05020022)。

摘　　要：为适应市场需求的变化,对离心式冷水机组的运行范围提出了更高要求。机组在小负荷、高压比的工况下极易出现喘振现象,喘振发生时机体会产生强烈的振动,并伴随间歇性沉闷的气流噪声,长期喘振易导致电机轴承磨损、密封间隙增大,压缩机叶轮、扩压器等气动部件有损坏风险。文章针对离心式冷水机组的喘振特性进行原因分析,并制定有效的防喘振控制方法,保障机组高效稳定运行。In order to adapt to changes in market demand,higher requirements are put forward for the operation range of centrifugal chiller.The unit is prone to surge under the working conditions of small load and high pressure ratio.When surge occurs,strong vibration will be generated and accompanied by intermittent dull air flow noise.Compressor impeller,diffuser and other pneumatic components have the risk of damage.Therefore,this paper analyzes the reasons for the surge characteristics of centrifugal chiller and formulates effective anti-surge control methods to ensure the efficient and stable operation of the unit.

关 键 词：离心机 喘振 控制方法 

分 类 号：TH452[机械工程—机械制造及自动化]