基于MATLAB软件的蒸汽锅炉连续排污余热回收设计

Process Design of Waste Heat Recovery in Continuous Blowdown of Steam Boiler Based on MATLAB Software

为解决蒸汽锅炉连续排污余热回收过程中废热及水资源浪费的问题提出一种节能方案。针对蒸汽锅炉连续排污余热回收过程中换热器设计计算较为复杂的问题,运用Matlab软件就蒸汽锅炉连续排污余热回收过程中换热器的设计计算编写程序,使用迭代的方式得出除氧水箱与软化水箱的分别得热量,探讨以不同的方式计算余热回收过程中换热器换热面积的问题;对比分析换热面积计算的2种方法,选取较优方案。分析计算提出的蒸汽锅炉连续排污余热回收方案的节能效果。

An energy-saving scheme is proposed to solve the waste heat and water resources in continuous blowdown of steam boiler.Matlab software is utilized to design calculation program for heat exchanger in heat recovery of steam boiler＇s continuous blowdown because of the complex problems in heat recovery design.Iterative methods are applied to obtain the heat gain of the deaerated water tank and softened water tank respectively.The heat exchange area of heat exchanger is calculated and investigated in different ways in the process of the waste heat recovery.The optimal plan for calculating heat exchange area is selected with comparison and analysis.The energy saving effect of the continuous waste heat recovery scheme for steam boiler is analyzed and calculated.