望亭发电厂300MW汽轮机现代化改造及分析研究.docx

东南大学
硕士学位论文
望亭发电厂300MW汽轮机现代化改造及分析
姓名:顾金芳
申请学位级别:硕士
专业:动力机械及工程
指导教师:胥建群;吕永鑫

东南大学工程硕士学位论文
摘要 扩46352 o
本文主要针对望亭发电厂14号汽轮机(国产300MW)改造进行研究分析, 主要内容如下:
、经济性和调峰性能角度,详细分析了望亭发电厂14号机组(300MW)运行中存在的问题和汽轮机原设计存在的问题,对汽缸的更换、液调系统的局限性进行重点分析,说明为适应当前社会主义电力市场经济,在网厂分开、竞价上网的市场竞争中电i一要想处于领先地位,实施汽轮机改造的必要性和迫切性。
,通过对改造方案的全面分析,了解了当今最先进的汽轮机设计制造技术,说明现代技术的充分利用提高了汽轮机运行的经济性、安全性和可调性。
3慨述了机组改造后的投运情况和性能试验效果,介绍了机组运行特点和
启停规律,以DEH电调系统为例,说明了调速系统的优越性。为保证改造后的机组能安全经济运行,产生最大经济效益,电厂丌展了运行优化管理。
,提出了今后解决的方法。
通过改造,解决了原机组长期存在的安金隐患、热耗偏高、自动化水平低和调峰性能差等问题,使机组达到了九十年代,延长了机组寿命。同时还适当增加了机组出力,产生了可观的经济效益,改造取得了圆
+
满成功。
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关键词:3盼MW汽轮机改造新技术效果
东南大学工程硕士学位论文
ABSTRACT
This PaDer studied the anization of the 300MW steam turbines units in
WaJlgting power plant(made in China),the main content is as follows:
the angel of safety,reliability,economics and the peak·adjusting function,
make prehensive study and analysis on the problems existed in operation and the bugs in the original design of the 300MW steam turbines units in‰gting
power plant. Emphasis on the change of cylinder and the limits of liquid modulation
the necessity and urgency to anize the turbine system to suit for the socialism market economy,in order to take the leading position and win petition of and factory separation petitive price to use. the principle and objective of the steam turbine anization according to
the real need of power analysing the anization scheme and introduction of the design technology of modem steam turbine provided
by East steam turbine factory,understand the most advanced design and manufacture
that it can improve the and tunability of the
running ofthe turbine system by using the modem techniques.
content ofthe regeneration ofthe 300MW units in Wantting Power Plant is as
follows:High,middle and low pressure rotors are replaced by the rotor without center