基于2×50 MW机组背压改造的背压优化技术
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摘要
山西漳电大唐4×50 MW热电厂向矿区平旺地区集中供热,1#～4#汽轮机均为热泵机组,仅可利用部分乏汽,额定负荷时仍有大部分乏汽余热被浪费。为积极响应国家政策,满足逐步增大的供热面积,节约能源、改善环境、提高热效率,将1#、3#汽轮机改造为背压机组。改造后,汽轮机的背压提高,在现有供热能力下,能够降低煤耗,提高机组的经济效益。
Centralized heating of Pingwang region in Datong Coal Mine Group were provided by Zhangdian Datang4×50 MW Thermal Power. The 1#～4# steam turbines are heat pump units, which could only use part of exhausted steam,and waste heat of exhausted steam is generally wasted at rated load. In order to respond to national policy, 1# and 3# turbines are reformed to back-pressure units, at the same time to keep up with the gradual increase of heating area, saving-energy,improving the environment, and raising the thermal efficiency. After back pressure transformation, the back pressure of turbine increases. This technology can reduce the coal consumption and improve the economic benefits of the unit within the present heat capacity.
Centralized heating of Pingwang region in Datong Coal Mine Group were provided by Zhangdian Datang4×50 MW Thermal Power. The 1#～4# steam turbines are heat pump units, which could only use part of exhausted steam,and waste heat of exhausted steam is generally wasted at rated load. In order to respond to national policy, 1# and 3# turbines are reformed to back-pressure units, at the same time to keep up with the gradual increase of heating area, saving-energy,improving the environment, and raising the thermal efficiency. After back pressure transformation, the back pressure of turbine increases. This technology can reduce the coal consumption and improve the economic benefits of the unit within the present heat capacity.
引文
[1]张玉宁.嵌入吸收式热泵的汽轮机冷端系统运行优化[D].北京:华北电力大学,2012.
[2]贾慧,郄建昆,郭建丽.基于吸收式热泵回收利用4×50 MW热电厂循环水余热的优化设计[J].节能,2016(11):51-53.
[3]林振娴.热电联产系统冷源领域节能及耦合机理研究[D].北京:华北电力大学,2011.
[4]郑体宽.热力发电厂[M].北京:中国电力出版社,2001.
[5]宋之平,张光,周少祥,等.新概念热电联产供热系统[J].现代电力,1997,14(2):1-5.
[2]贾慧,郄建昆,郭建丽.基于吸收式热泵回收利用4×50 MW热电厂循环水余热的优化设计[J].节能,2016(11):51-53.
[3]林振娴.热电联产系统冷源领域节能及耦合机理研究[D].北京:华北电力大学,2011.
[4]郑体宽.热力发电厂[M].北京:中国电力出版社,2001.
[5]宋之平,张光,周少祥,等.新概念热电联产供热系统[J].现代电力,1997,14(2):1-5.