摘要
进口弯头对分配集箱中的流量分配有较大的影响。为此 ,针对 1台锅炉中其分配集箱带弯头入口的顶棚管过热器受热面管流量分配做了较详细的试验研究。研究发现 ,弯头上不同区域的管产生不同的流量偏差 ,并且弯头出口附近直管集箱上的管中流量也会受弯头的影响。最后 ,根据试验分析得到的产生流量偏差的原因和特点 ,提出了消除流量偏差和解决爆管的措施。图 1 1参
There is much influence of inlet elbow on the flow distribution in the dividing header. In this paper, aiming at the flow distribution problem in the parallel connection tubes of the ceiling superheater with inlet elbow of a boiler, the detailed experimental study is made. It is found that there is diffrent flow deviation in the tubes located in the different zones of elbow, and the flow of the tubes in the straight header adjacent to outlet of elbow is also affected by elbow. At last, according to the reasons and features of flow deviation by use of experimental analysis, some measures are proposed for eliminating flow deviation and solving tube rupture problem.Figs 11 and refs 4.
出处
《动力工程》
CSCD
北大核心
2003年第2期2284-2288,共5页
Power Engineering
关键词
锅炉
过热器
集箱
爆管
boiler
superheater
header
tube rupture
