摘要
方型分离器是一种应用于循环流化床的新型气固分离装置，其性能可靠，制造成本低，结构紧凑，易于大型化．为进一步优化入口带有加速段的方型分离器操作参数，在７００ｍ ｍ ×７００ｍ ｍ 的冷态实验台上实验研究了进口风速对分离器性能的影响．结果表明，进口速度与ｄ５０ 和ｄ９９ 的关系与分离器结构有关，在比较合理的结构条件下，进口速度２２．５ｍ ·ｓ－ １ 时，ｄ５０ 和ｄ９９ 最低，ｄ５０ 为２７μｍ ，ｄ９９ 为１２７μｍ ，流动阻力系数ξ为３．
Square cyclone is one of the new separator that is used in circulating fluidized bed boilers. Its performance and scaling up potential is excellence for compact design with low manufacture cost. In order to insure the operating parameters, such as the velocity of inlet, the investigation was carried out in a cold test rig with separator cross section 700mm×700mm. The experimental result shows that the effect of inlet velocity on collection efficiency is connected with the structure of separator. In a reasonable structure and inlet velocity of 22.5m·s -1 case, the cut size d 50 is 27μm, the critical size d 99 is 127μm, and the resistance coeffcient is 3.9.
出处
《应用基础与工程科学学报》
EI
CSCD
1999年第3期308-313,共6页
Journal of Basic Science and Engineering
基金
国家"九五"科技攻关基金
关键词
循环流化床
分离器
进口速度
分离效率
阻力
circulating fluidized bed, separator, velocity of inlet, collection efficiency, resistant
