Thesis: 1000MW level of boiler design and operating characteristics
Abstract
Since the reform opened, along with the rapid development of national economy, the our country electric power industry also obtained a high-speed growth, The our country generates electricity to pack total capacity of machine and generates electricity quantity to all jump to occupy the second in the world, however the electricity supply is still more nervous. Generate electricity quantity in the year in, the fire electricity has 81.54%, is an our country to mainly generate electricity a way, and our country use coal as to generate electricity main fuel.Our country buring coal electricity stand existent of outstanding problem BE:The machine set efficiency is low, the power supply coal consumes Gao.Currently, the development forerunner's buring coal generate electricity the problem that the technique should consider BE:Efficiency, environmental protection function, credibility, flexibility, invest and the exploitation of the wastes etc..
Pass for several decades of development, super critical machine set credibility with mature technique, having a hot efficiency is high, circulate the cost is low and pollute a small etc. advantage, and the super critical machine set can mutually match in excellence with second critical machine set at canning use a rate and change to carry aspects like movement,etc, and big capacity the super critical machine set compare super critical the machine set hot efficiency is higher, super critical technique the F get a quick development in the United States, Japan and Europe, Super critical machine set also already the batch quantity throw a luck, obtain a good movement accomplishment and have good credibility, economy. Therefore, the acceleration develops super critical and super critical fire electrical engineering set, With raise a machine set efficiency, lower power supply coal to consume to have very important meaning.
According to the above circumstance, this text analyzed the basic structure and work principle of 1000 WM class boiler first, wrap boiler with vapor it to carry on a comparison at the same time, For example the decoration structure and combustion method of boiler, Boiler essence structure, each noodles, boiler water that is subjected to heat cold wall tube turn form etc., secondly made reference to a 1000 WM class the boiler is in the process of trying to circulate in existent problem and treatment, have to the movement characteristic of 1000 WM boiler to keep view.
Key words: ultra-supercritical; boiler design; operating characteristicsPaper type: Theoretical Study