关于防止火床炉炉膛冒正压的若干措施  

Countermeasures for the Avoidance of Positive-Pressure in Fire-Bed Boiler Furnace

作　　者：徐通模[1] 惠世恩[1] 刘仲军[1] 蒋慧姝 

机构地区：[1]西安交通大学

出　　处：《热能动力工程》1994年第1期14-17,共4页Journal of Engineering for Thermal Energy and Power

摘　　要：根据流体力学和炉内空气动力学的基本原理，分析了炉内冒正压的机理．提出对大空间、小炉拱的炉膛，只要保证炉膛出口在０～２０Ｐａ的负压时不会出现冒正压；对极低、长炉拱小空间炉膛是否出现冒正压现象的关键在于炉膛、炉拱结构和炉内的空气动力参数是否合理。同时提出防止措施。ased on the basic Principles of hydrodynamics and in-fUrnace aerodynarnics an analysis is made ofthe mechanism,of the occurrence of peitive-positive-preure in a boiler furnace. It has been proved that inthe case of a large-voume furnace with a small furnace arch the maintenance of a negative PressSure of0-20 Pa at the furnace outlet will Prevent the occurrence of a peitive Pressure. With resect to asmall-volume furnace with a very low and long furnace arch the positive Ptessutrc Can to a great ex tent be avoided through a proper furnace design and arch construction as well as in-furnace rationalaerodynamic diameters. The authors have also propoSed some countermeasures for the Ptevetion ofPositive Pressure in fire-bed boiler furnaces.

关 键 词：锅炉 炉膛 冒正压 

分 类 号：TK228[动力工程及工程热物理—动力机械及工程]