高效抽真空装置在大型汽轮机组应用探讨

Discussion on the Application of High Efficiency Vacuum Pumping Unit in Large Steam Turbine

华电淄博热电有限公司4号机组抽凝型式机组已改造为双背压双转子互换式供热汽轮机组,目前高效抽真空装置已在纯凝和抽凝机组上应用并推广,节能效果良好,但受制于汽轮机高背压工况凝汽器各参数与纯(抽)凝工况不同,还未在双背压双转子互换式汽轮机组上应用。高效抽真空装置在华电淄博热电有限公司大型双背压双转子互换式汽轮机组成功应用,取得了良好的经济效益和社会效益。

The extraction condensing turbine of the No.4 unit of Huadian Zibo Thermal Power Co.Ltd has been transformed into a double pressure double rotor interchangeable heating units.The high vacuum pumping device has been used in the pure condensation and condensation pumping units and has been promoted,showing good energy-saving effect.However,subject to the condition of high back pressure steam turbine,the parameters of condenser and that of the pure（pumping） coagulation conditions are different.Due to this reason,the high vacuum pumping device has not been used on the double pressure double rotor type steam turbine application swap in before.The high efficiency vacuum pumping unit was successfully applied to the large double back pressure double rotor interchange steam turbine unit of Huadian Zibo thermal power company limited for the first time,and receiving good economic and social benefits.