中国电机工程学报2013，Vol.33Issue(2)：9-15,前插2,8.
某电厂联合循环汽轮机启动过程优化
Optimization of Start-up Process in Combined Cycle Steam Turbine of a Power Plant
丁阳俊 1盛德仁 1陈坚红 1洪雷 2顾正皓 3林成4
作者信息
- 1. 浙江大学热工与动力系统研究所,浙江省杭州市310027
- 2. 浙能镇海联合发电有限公司,浙江省宁波市315208
- 3. 浙江省电力试验研究院,浙江省杭州市310014
- 4. 浙江镇海发电有限责任公司,浙江省宁波市315208
- 折叠
摘要
Abstract
The starting time of the steam turbine in a gas/steam combined cycle unit is relatively long, which may cause the combine cycle unit fail to respond in time to the needs of peak and valley loads in the power network. Therefore, combining the methods of numerical experiments and field tests, the study on the starting process of steam turbine was conducted. A two-dimensional axisymmetric finite-element model of steam turbine rotor was established, and the nonlinear boundary conditions were determined, especially the impacts of warm-up operations on rotor stress were described in detail. Based on the numerical experimental results and considering the structure and operation characteristics of the pilot unit, the optimized start-up processes were made. Results show that for warm start-up, the maximum stress of the steam turbine rotor decreases by 11 Mpa, the starting time is cut by 36min and the low cycle fatigue life consumption reduces by 0.0008%, respectively; while for cold start-up, the maximum stress decreases by 261 Mpa, the starting time is cut by 32min and the low cycle fatigue life consumption reduces by 0.0197%.关键词
联合循环/汽轮机启动过程/暖机操作/转子应力/低周疲劳寿命损耗Key words
combined cycle/ steam turbine start-up process/ warm-up operation/ rotor stress/ low cycle fatigue life consumption分类
信息技术与安全科学引用本文复制引用
丁阳俊,盛德仁,陈坚红,洪雷,顾正皓,林成..某电厂联合循环汽轮机启动过程优化[J].中国电机工程学报,2013,33(2):9-15,前插2,8.
