摘要
针对石灰石-石膏湿法脱硫工艺中,针对核心部件—喷淋系统的改造是脱硫提效方法之一,主要通过新增喷淋层和更改喷嘴形式来提高吸收塔喷淋气液比。利用有限元软件,对某电厂600 MW机组脱硫塔内新增喷淋层支撑钢梁及喷淋管整体建模,准确分析喷淋管和支撑钢梁这一组合结构模型的挠度和应力分布情况,通过计算改进原支撑结构重新建模复核。最终,支撑钢梁形式得以优化,使单层支撑梁用钢量降低,同时验证了结构的安全可靠性。
In order to enhance the desulfurization efficiency,it is an efficient method to upgrade the spray system which is the key component of the Limestone-Gypsum WFGD System.Usually increasing the numbers of spray layers and altering the nozzles style are the typical methods for raising the ratio of liquid to gas.In this paper,an integrated finite element model of a spray layer including steel support beams and spraying pipes was established in finite element software.By analyzing this finite element model,the status of strain and stress under different loads was obtained,which implies the direction of improvement.Finally the steel support beams were optimized by reducing the mass of steel while maintaining the structural reliability.
出处
《热能动力工程》
CAS
CSCD
北大核心
2016年第6期114-119,128,共6页
Journal of Engineering for Thermal Energy and Power
关键词
湿法脱硫
喷淋管
喷嘴
支撑梁
有限元软件
wet desulphurization
spray pipes
spray nozzles
support beams
