670MW机组FA1D67型前置泵节能优化改造

Optimized reformation of FA1D67 booster pump of 670 MW unit for energy conservation

华电潍坊发电有限公司超临界670MW机组汽动给水泵前置泵为FA1D67型单级双吸离心泵,运行稳定性差,在安全上存在明显缺陷。虽经多次修补,但收效不大,仍严重威胁机组安全、经济运行。通过测试分析,找出了问题的根源,对叶轮、蜗壳进行优化改造后使问题得以解决,有效提高了机组运行的安全性和经济性。

The booster pump of the turbine-driven feed pump of 670 MW supercritical unit in Huadian Weifang Power Generation Company Limited is FA1D67 single stage double suction centrifugal pump.The operation stability of the pump is poor,and there are obvious safety defects in the pump.The pump was repaired many times,but the repair effects were little,and the pump is still a serious menace for the safe and economic operation of the unit.By test and analysis,the root of the problem was found out.The impeller and the volute were reformed and optimized.The problem was solved,and the safety and economic efficiency of the unit operation were improved effectively.