工业炉窑壁面散热回收技术应用研究

针对工业炉窑运行过程中炉壁损坏的特点,采用导流罩方式将其散热进行回收用于助燃空气的加热。使用导流罩可具有炉壁保温、环境美化和有效组织气流多方面的优点。通过实例研究:对安装导流罩的热量回收能力进行了分析,可使助燃空气提高46.95℃,炉壁散热回收率达到36.23%;文章还对装置的设计制作进行了介绍,并提出了在新炉制造时可进行一体化设计,以减少施工难度。

炉底散热回收型换热器的热力耦合有限元模拟

为了实现炉底散热的有效回收利用,提出了一种炉底散热回收型换热器。运用ANSYS软件对炉换热器进行了热力耦合有限元分析,得到换热器的应力和应变分布情况。结果表明:最大应力点出现在换热器内壁与上板的连接过渡处,最大应力值仅为35.7 MPa,最大变形量为5.39×10^(-6)m。

一种新型寒冷地区空气源热泵系统的实验研究

为了提高空气源热泵系统在寒冷地区采暖时的制热能力，本文中提出一种新型的空气源热泵系统。该系统将双级压缩循环与压缩机散热回收系统有机地结合，并辅以低压补气增压装置，提高热泵系统的低温适应性。实验结果表明，在-20℃的低温环境下，制取50℃采暖热水时，制热性能系数为1．76，压缩机排气温度低于100℃，系统可以长时间安全稳定可靠地运行。

Thermal Management Controller for Heat Source Temperature Control and Thermal Management

In many heat recovery processes,temperature control of heat source is often required to ensure safety and high efficiency of the heat source equipment.In addition,the management of recovered heat is important for the proper use of waste heat.To this aim,the concept of thermal management controller(TMC),which can vary heat transfer rate via the volume variation of non-condensable gas,was presented.Theoretical model and experimental prototype were established.Investigation shows that the prototype is effective in temperature control With water as the working fluid,the vapor temperature variation is only 1.3℃when the heating power varies from 2.5 to 10.0 kW.In variable working conditions,this TMC can automatically adjust thermal allocation to the heat consumer.