热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2014年
12期
130-135
,共6页
石清鑫%孙大伟%杨静%董康田%郑金
石清鑫%孫大偉%楊靜%董康田%鄭金
석청흠%손대위%양정%동강전%정금
引风机%增压风机%合并改造%烟道优化%导流板%烟道阻力%节能
引風機%增壓風機%閤併改造%煙道優化%導流闆%煙道阻力%節能
인풍궤%증압풍궤%합병개조%연도우화%도류판%연도조력%절능
induced draft fan%booster fan%integration%flue optimization%guide plate%flue duct resistance%en-ergy saving
针对火电机组锅炉引风机、增压风机合并改造后管网烟道系统的优化问题,提出了以数值模拟为核心,结合工程实际改造经验,进行综合评估的管网优化设计方法,并将其应用于300 MW机组引风机的改造工程中。改造后,烟道阻力在满负荷下由468 Pa 降至了193 Pa,吸收塔入口烟气流动均匀性得到改善,风机节能效果显著。
針對火電機組鍋爐引風機、增壓風機閤併改造後管網煙道繫統的優化問題,提齣瞭以數值模擬為覈心,結閤工程實際改造經驗,進行綜閤評估的管網優化設計方法,併將其應用于300 MW機組引風機的改造工程中。改造後,煙道阻力在滿負荷下由468 Pa 降至瞭193 Pa,吸收塔入口煙氣流動均勻性得到改善,風機節能效果顯著。
침대화전궤조과로인풍궤、증압풍궤합병개조후관망연도계통적우화문제,제출료이수치모의위핵심,결합공정실제개조경험,진행종합평고적관망우화설계방법,병장기응용우300 MW궤조인풍궤적개조공정중。개조후,연도조력재만부하하유468 Pa 강지료193 Pa,흡수탑입구연기류동균균성득도개선,풍궤절능효과현저。
Against the flue duct optimization after integration of induced draft fan and booster fan in thermal power plants,a numerical simulation based design method combining with the practical retrofitting experi-ence for flue duct optimization was put forward and then applied in the induced fan retrofitting for a 300 MW unit.The results show that optimizing the flue arrangement and adding appropriate guide plates lead to a pronounced energy-saving effect with reduced flue losses as well as improved flow uniformity at the inlet of the absorbing tower.
