1000 MW机组烟风煤粉管道节能降耗探讨

Discussion on Energy Saving and Consumption Reduction of Flue Gas,Air and Pulverized Coal Pipeline for 1000 MW Unit

[目的]现燃煤机组为更具备竞价上网的优势,对烟风煤粉管道的精细化及优化设计也提出了更高的要求,以达到深度节能降耗的目的。[方法]主要采用理论分析与实践验证相结合的研究方法,首先就不同烟风煤粉管道系统的功能进行了节能降耗思路理论分析探讨,根据理论分析结果提出了针对不同系统的优化设计实施细则,采用数值模拟软件对理论分析结果进行了初步验证,同时针对实际工程进行了应用实践验证。[结果]针对烟风煤粉管道系统提出的节能降耗方案经理论及实践证明,具有显著的节能效果,不但可以降低系统初投资,且可以降低机组的年运行费用。[结论]相关研究成果虽基于1000 MW等级机组,但基本理论及研究方法通用于其他等级机组工程,可为后续工程烟风煤粉管道的节能降耗设计工作提供重要参考及借鉴。

[Introduction]Now the coal-fired units have more advantage of bidding to access the net,It also puts forward higher requirements for fine design and optimization of flue gas,air and pulverized coal pipeline in order to achieve the purpose of saving energy and reducing consumption.[Method]The article mainly used the combined research method of theory analysis and practice verification,firstly the function of different flue gas,air and pulverized coal pipeline system are analyzed and discuss theoretically in the view of saving energy and reducing consumption,according to the results of theoretical analysis the article proposed optimization design of the detailed rules for the implementation of different system,the numerical simulation software was used to verify the theoretical results preliminarily,At the same time,the application and practice of the actual project were verified.[Result]The research method of the energy-saving and consumption-reduction scheme proposed for the flue gas,air and pulverized coal pipeline system has been proved theoretically and by practices that it has remarkable energy-saving effect,which can not only reduce the initial investment of the system,but also reduce the annual operation expenditure of the unit.[Conclusion]Although the relevant research results in this paper are based on 1000 MW units,the basic theories and research methods are commonly applicable to other graded unit projects,which can provide important reference for the design of energy conservation and consumption reduction of flue gas,air and pulverized coal pipeline in subsequent projects.