摘要
应用计算流体力学模拟了不同扭距下扭曲管的传热性能。通过实验室测试并比较扭曲管换热器和弓形折流板换热器的传热性能差异；介绍了扭曲管双壳程换热器的结构设计创新。通过工业试验产品在某厂的成功应用，验证了该新型高效扭曲管双壳程换热器的综合强化传热能力比传统折流板换热器提高30％～40％，节能效益显著，工业应用前景广阔。
The heat trsnsfer performances of twisted tubes with different twist pitehs were compared through numerical simulation of fluid dynamics. The heat transfer performances of the twisted tube heat exchanger and baffled heat exchanger were tested and compared in laboratory. The structure design inno- vations for the double shell twisted tube heat exchanger were introduced. The successful application of in- dustrial test heat exchanger shows that the enhanced heat transfer capability of the double shell twisted tube heat exchangers was increased by 30% -40% compared with conventional baffled heat exchangers. Its benefit of energy conservation is notable. The double shell twisted tube heat exchanger can be widely used in the field of industry.
出处
《压力容器》
2014年第1期68-74,共7页
Pressure Vessel Technology
基金
中国石油化工集团公司技术开发项目(309055)
关键词
扭曲管
双壳程
强化传热
节能
twisted tube
double shell
enhanced heat transfer
energy conservation
