抗冲蚀调节阀流量特性分析与测试  

Analysis and Testing on Flow Characteristics of an Erosion-resistant Regulating Valve

作　　者：马骏[1] 高怡秋[2] 

机构地区：[1]海军驻431厂军事代表室,葫芦岛125004 [2]中国船舶重工集团公司第704研究所,上海200031

出　　处：《发电设备》2013年第2期91-93,共3页Power Equipment

摘　　要：为提高汽轮机调节阀的抗冲蚀性能,同时使其满足调节特性需求,提出对调节阀进行分段设计,并采用了鼠笼式多级降压结构。对调节阀的流量特性进行了计算,分析了滑阀间隙对流量特性的影响,修正了流量特性曲线。通过调节阀流量特性的测试,分析了小开度下产生误差的主要原因。结果表明:计算值与试验值能较好地吻合。To improve erosion resistance and meet governing characteristics of regulating valves for steam turbine, a suggestion is proposed to adopt segmented design and squirrel-cage multi-stage depressurization structure for the turbine. Flow characteristics of the regulating valve are calculated, while influence of slide valve clearance on the flow characteristics analyzed, based on which the flow characteristic curve is corrected. Through testing on the flow characteristics, main causes leading to the error occurring at small opening of the valve are analyzed. Results show that the calculated data agree well with actual measurements.

关 键 词：汽轮机 调节阀 多级降压 鼠笼式 流量特性 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]