The Use Of Low Pressure Steam Heating Furnace Of Steel Rolling Evaporative Cooling System

Our country is energy consumption, but energy efficiency is lower than theadvanced countries. America’s energy utilization rate has exceeded60%, while only30%in our country[1]. In iron and steel industry, for example, to generate the effectiveenergy accounted for28.3%of total energy use and the remaining71.7%is convertedinto heat[2]. The important cause of this phenomenon is that recycling of waste heatutilization rate is low. Through the analysis of the steel industry status of recovery ofwaste heat, found that high temperature waste heat resource recovery rate is relativelyhigh, low temperature waste heat (below230℃) recovery rate is very low, roughly atthe levels of5-10%.Based on the heating furnace of steel rolling vaporization cooling system toproduce the low temperature low pressure steam generator as the research content,small-scale, low temperature low pressure, discussing the frequent fluctuation ofsteam to generate electricity. Respectively from the choice of power conversionequipment, power cycle type, choice of generators, grid mode selection, etc.According to the different requirements of energy-using units and thecharacteristics of the power cycle, design several different scheme respectively, andthe theoretical calculation, respectively. Through the data contrast, compare thesesolutions in power, the advantages and disadvantages of payback period.Frequent fluctuations in steel rolling heating furnace vaporization cooling systemsteam problem, put forward the solution; According to the scene of the workshopcondition, puts forward the reasonable installation position and need to take safetymeasures; According to the field situation, puts forward the measures to improve thethermal efficiency of the system.If we can establish efficient low temperature waste heat power generation system,can directly convert low temperature waste heat into electricity, we will be able topromote the development of low temperature waste heat resources, play an importantsignificance to improve the low temperature waste heat utilization rate of resources...