螺旋折流板波槽管换热器换热与阻力实验研究

以水为工质，对螺旋折流板波槽管换热器、螺旋折流板光管换热器及传统弓形折流板光管换热器进行了壳程和管程的传热及阻力对比实验研究．结果表明，相比弓形折流板光管换热器，螺旋折流板光管换热器总传热系数和壳程换热系数分别提高50％～80％和90％，壳程阻力减少15％～20％；螺旋折流板与波槽管结合使用，换热能力进一步加强，总传热系数是弓形折流板光管换热器的2．01～2．11倍，是螺旋折流板光管换热器的1．15～1．6倍．

Experimental investigation on heat transfer and resistance of helical baffle heat exchanger with wave-groove tubes

Taking water as working medium, experimental investigations on heat transfer and resistance of helical baffle heat exchanger with wave-groove tubes , helical baffle heat exchanger with smooth tubes and segmental baffle heat exchanger with smooth tubes were performed. The results show that, compared with segmental baffle heat exchanger with smooth tubes, the total heat transfer coefficient of helical baffle heat exchanger with smooth tubes is improved by 50% -80% , the shell side heat transfer coefficient increases by 90% while the shell side resistance decreases 15% -20%. The heat transfer ability can be enhanced when helical baffle and wave-groove tube are combined to use. Compared with segmental baffle heat exchanger with smooth tubes and helical baffle heat exchanger with smooth tubes, the total heat transfer coefficient of helical baffle heat exchanger with wave-groove tubes is respectively improved by 101% - 111% and 15% - 60%.