To satisfy the heating requirement on a 350 MW supercritical unit, a novel scheme was proposed to take its backpressure BFPT exhaust as the source of industrial heat supply. An introduction was presented to the arrangement of related thermodynamic system in the noval scheme, while a comparison of economy was made between conventional and the proposed heat supply mode based on detailed calculation. In addition, a feasibility study was performed for the noval scheme in engineering application. Results show that by the way of taking backpressure BFPT exhaust as the heat source, high economy of unit would be resulted, without requiring additional equipment and with high operation flexibility, which therefore may serve as a reference for industrial heat supply of steam turbines.
Key words
350 MW supercritical unit /
backpressure BFPT /
thermodynamic system /
industrial heat supply
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
[1] 王乃宁, 张志刚. 汽轮机热力设计[M]. 北京:水利电力出版社, 1987:279.
[2] 雷兆团, 付龙龙, 党小建, 等.背压式汽动引风机运行及排汽回收利用[J]. 热力发电, 2014, 43(6):153-156. LEI Zhaotuan, FU Longlong, DANG Xiaojian, et al.Back pressure turbine driven induced draft fans:operation and exhaust recycle[J].Thermal Power Generation, 2014, 43(6):153-156.
[3] 崔利, 段远光, 曹志刚, 等.背压式汽动引风机控制的优化设计[J]. 热力发电, 2014, 43(6):119-123. CUI Li, DUAN Yuanguang, CAO Zhigang, et al.Design optimization for control strategy of a backpressure steam-driven induced draft fan[J].Thermal Power Generation, 2014, 43(6):119-123.
[4] 王萌, 赵晓东.大型直接空冷电站采用回热背压式汽动给水泵研究分析[J].电站系统工程, 2016, 32(4):35-38. WANG Meng, ZHAO Xiaodong.Analysis of regenerative back-pressure steam feeding water pump for large direct air-cooled unit[J].Power System Engineering, 2016, 32(4):35-38.
[5] 吴剑恒.背压式汽轮机驱动给水泵在热电厂的应用[J].电力需求侧管理, 2005, 7(1):48-50. WU Jianheng.Application of back pressure steam turbine drive water pump in thermal plant[J].Power Demand Side Management, 2005, 7(1):48-50.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(1831 KB)
