中国电力 ›› 2020, Vol. 53 ›› Issue (2): 150-155.doi: 10.11930/j.issn.1004-9649.201902198

• 发电 • 上一篇    下一篇

太阳能塔式聚光集热系统与燃煤发电耦合设计

张金生   

  1. 神华国华(北京)电力研究院有限公司, 北京 100025
  • 收稿日期:2019-02-22 修回日期:2019-08-03 出版日期:2020-02-05 发布日期:2020-02-05
  • 作者简介:张金生(1972-),男,高级工程师,从事清洁发电相关技术研究,E-mail:16850073@shenhua.cc

Coupling Design of Tower Concentrated Solar Power System and Coal-Fired Power Generation

ZHANG Jinsheng   

  1. ShenHua GuoHua(Beijing) Electric Power Research Institute Co., Ltd., Beijing 100025, China
  • Received:2019-02-22 Revised:2019-08-03 Online:2020-02-05 Published:2020-02-05

摘要: 选取塔式水工质太阳能聚光集热系统,与常规火电机组锅炉给水和凝结水系统相耦合,替代高、低压加热器部分功能,构建太阳能光煤互补协同发电系统,该耦合方式是基于提效不增容的前提对系统进行优化设计及经济性分析,即减少汽水系统回热蒸汽量,降低主蒸汽流量,减少燃煤量,以提高机组运行效率,减少污染物排放,实现清洁能源综合利用的目的。该系统为其他光煤耦合系统负荷的选取以及系统设计提供了依据。

关键词: 太阳能, 聚光集热, 燃煤发电, 耦合, 设计

Abstract: A solar-coal collaborative complementary generation system is constructed by selecting the tower concentrated solar power system using water as working fluid, coupled with the water feeding and condensation system of conventional thermal power plant boiler to replace part of the function of high and low pressure heat exchangers. Based on the requirement of efficiency improvement without increasing the capacity, the system design and economic analysis are conducted. The new scheme can reduce the amount of regenerative steam in steam-water system, so that the main steam flow rate is reduced, the coal consumption is deducted, and the operation efficiency of the unit can be improved. Furthermore, with this new scheme, the pollutant emission is reduced as well and the comprehensive utilization of clean energy is finally achieved. The system provides a reference for the selection of other solar-coal coupling system loads and system design.

Key words: solar energy, concentrating collector system, coal-fired power generation, the coupling, design