摘要
简要介绍了火力发电厂二次再热机组的发展情况,并以1000MW容量为例,从机组的参数选择、主机、主要热力系统三方面阐述了二次再热超超临界机组技术的特点,并从煤耗和投资的变化两方面对1000MW二次再热机组与一次再热机组的经济性进行了比较,对二次再热技术的应用提出了建议。
The development situation of power unit with double reheat cycles of thermal power plant are briefly introduced and the power unit with the capacity of IO00MW is cited as an example in this paper. The technical characteristics of ultra-supercritical unit with double reheat cycles is elaborated in three aspects such as selection of unit parameter, main machines and main thermal power system. A comparison between the economy of 1000MW ultra-supercritical unit with double reheat cycles and that of IO00MW ultra-supercritical unit with single reheat cycle is made in the two aspects of coal consumption rate and variation in investment. The proposal concerning the technical application of ultra-supercritical pressure power unit with double reheat cycles is also set forward.
出处
《电力勘测设计》
2013年第6期24-29,共6页
Electric Power Survey & Design
关键词
二次再热
超超临界机组
特点
经济性.
double reheat
ultra-supercritical unit
characteristics
economy.
