新型碳塑管壳式海水换热器换热特性实验研究  

Experimental study on the heat transfer characteristics of new-type carbon-plastic shell and tube seawater heat exchanger

作　　者：赵玉莹 李绪泉[1] 付泽正 张亚丽 龚鸣禹 于慧俐[1] ZHAO Yuying;LI Xuquan;FU Zezheng;ZHANG Yali;GONG Mingyu;YU Huili(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266525,China)

机构地区：[1]青岛理工大学环境与市政工程学院,青岛266525

出　　处：《青岛理工大学学报》2024年第6期95-101,共7页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(52078257)。

摘　　要：在海水源热泵中,金属管壳式换热器存在易发生管束腐蚀的问题,而塑料管壳式换热器又存在换热性能较差的问题,为此提出一种新型碳塑管壳式海水换热器。对碳塑管壳式换热器进行设计计算和实验研究,实验结果表明,在相同工况下碳塑管壳式换热器的传热系数均大于普通塑料管壳式换热器的传热系数。在冷水流量一定时,碳塑管壳式换热器传热系数随热水进口温度的升高而增大;在热水进口温度保持不变的情况下,冷水流量越大,传热系数和壳程压降越大,欧拉数则越小;同时增大热水进口温度和冷水流量对碳塑管壳式换热器传热系数有着显著提高的效果。研究成果可为碳塑管壳式换热器的实际应用提供理论支持和技术指导。In the seawater source heat pump,metal shell and tube heat exchanger has the problem of tube bundle corrosion,and plastic shell and tube heat exchanger has the problem of poor heat transfer performance,so a new carbon-plastic shell and tube seawater heat exchanger is proposed in this study.The design calculation and experimental study of carbon-plastic shell and tube heat exchanger were carried out,and the experimental results show that the heat transfer coefficient of carbon-plastic shell and tube heat exchanger under the same working condition is greater than that of ordinary plastic heat exchanger.When the cold water flow rate is certain,the heat transfer coefficient of carbon-plastic shell and tube heat exchanger increases with the increase of hot water inlet temperature;under the condition that the hot water inlet temperature is kept constant,the larger the cold water flow rate is,the larger the heat transfer coefficient and the shell pressure drop is,and the Eu is reduced;increasing the hot water inlet temperature and the cold water flow rate simultaneously has a significant effect on the heat transfer coefficient of carbon-plastic shell and tube heat exchanger.The research results provide theoretical support and technical guidance for the practical application of carbon-plastic shell and tube heat exchanger.

关 键 词：碳塑 换热特性 管壳式换热器 传热系数 压降 

分 类 号：TK172[动力工程及工程热物理—热能工程]