京隆电厂运行优化与节能降耗

发布时间：2018-06-01 22:30

本文选题：泵与风机 + 节能降耗　；参考：《华北电力大学》2014年硕士论文

【摘要】：工业文明极大地改变人类生活方式的同时,也消耗了大量能源。进入21世纪以来,煤、石油、天然气等化石能源消耗量急剧增长,而风能、太阳能等可再生能源由于其自身缺陷而无法大规模替代化石能源。全球范围内的能源短缺,加速了人们对节能理念的认知,节能降耗也因此成为我国电力行业技术升级和生产优化的主要目标之一。本文分析燃煤电厂高能耗设备发现泵与风机耗电占厂用电的大部分,以内蒙古京隆电厂为案例,逐步分析了泵与风机的负荷特性与节能方案,其中重点分析包括暖风器、电动机变频器、空冷系统和给水泵等在内的多处节能改造或优化运行方案,总结节能和优化方案对京隆电厂降低煤耗、电耗的优势。分析发现,京隆电厂原暖风器由于结构原因容易结垢,而通过采用可旋转型暖风器,可有效降低阻力,有利于送风机的节能降耗；原有引风机采用入口静叶调整出力,效率低且运行过程出现较多问题,可以通过采用电动机变频调节的方式加以解决；对凝结水泵电动机变频器的节能改造,在降低厂用电方面有重要的促进作用。不仅如此,京隆电厂运行优化中的重要环节还包括：对直接空冷机组风机群的优化和对锅炉给水泵的优化运行。通过对节能改造和优化运行的前后的电耗量对比或者通过现场试验测试的方式发现,京隆电厂对泵与风机系统的运行优化和节能降耗效果明显。本文为同类电厂的节能降耗工作提供了一定的依据。
[Abstract]:Industrial civilization has greatly changed the way of life, but also consumed a lot of energy. Since the beginning of the 21st century, the consumption of fossil energy such as coal, oil and natural gas has increased rapidly, while renewable energy such as wind energy and solar energy cannot replace fossil energy on a large scale because of their own defects. The global energy shortage has accelerated people's understanding of the idea of energy conservation, and energy saving and consumption reduction has therefore become one of the main goals of upgrading and optimizing the production of power industry in China. In this paper, the power consumption of high energy consumption equipment in coal-fired power plant is analyzed. Taking Jinglong Power Plant in Inner Mongolia as an example, the load characteristics and energy saving scheme of pump and fan are analyzed step by step. This paper summarizes the advantages of energy-saving and optimization schemes for reducing coal and electricity consumption in Jinglong Power Plant. It is found that the original air heater of Jinglong Power Plant is easy to scale due to structural reasons, and the resistance can be effectively reduced by adopting the rotary type heater, which is beneficial to the energy saving and consumption reduction of the blower, and the original inducer adopts the inlet static vane to adjust the output force. The efficiency is low and there are many problems in the operation process, which can be solved by adopting the method of motor frequency conversion regulation, and the energy-saving transformation of the condensate pump motor inverter has an important promoting role in reducing the auxiliary power consumption. Moreover, the important links in the operation optimization of Jinglong Power Plant include the optimization of the fan group of the direct air-cooled unit and the optimal operation of the boiler feed water pump. By comparing the power consumption before and after the energy saving transformation and optimization operation or by field test, it is found that the operation optimization and energy saving effect of the pump and fan system in Jinglong Power Plant are obvious. This paper provides a certain basis for energy saving and consumption reduction in similar power plants.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM621

【参考文献】