国产第一台20万千瓦汽轮机于1971年12月试制成功,安装于朝阳电厂,该机从72年12月4日至73年4月1日止,共起动了12次,其中因轴承甩油,主油泵出口压力低和高压转子弯曲停机三次。最大连续负荷,18万千瓦、(不投高加),瞬时最高负荷21.5万千瓦。实践证明,20万千瓦中间再热机组的设计,制造和安装都是成功的,至今已有四台机组投入运行。在机组的运行过程中,也曾出过一些大小事故。其中最严重的事故为高压转子大轴弯曲事故。在已运行的四台机组中,有两台(朝阳1机,新华5机)发生过大轴弯曲事故,而 Domestic first 200,000 kilowatts turbine trial in December 1971 successfully installed in Chaoyang Power Plant, the aircraft from December 4, 2002 to April 1, 73 only a total of 12 starts, of which due to bearing oil throwing , The main pump outlet pressure is low and high-pressure rotor bending down three times. The largest continuous load, 180,000 kilowatts, (not vote high), the instantaneous maximum load of 215,000 kilowatts. Practice has proved that 200,000 kilowatts of intermediate reheat unit design, manufacture and installation are successful, so far has been the four units put into operation. In the operation of the unit, have also had some small and large accidents. One of the most serious accidents is the high-pressure rotor shaft bending accident. In the four units already in operation, two (Chaoyang 1, Xinhua 5) have experienced a big axis bending accident, and