摘要
本文介绍螺纹烟管流阻与放热的计算公式。指出螺纹烟管入口烟温变化对螺纹烟管吸热量及对锅炉总阻力的影响不大,建议在锅炉设计时,在可能的情况下,尽量提高入口烟温。
Presented in this paper are formulas for calculating flow resistance and heat exchange coefficient of screwtubes, which have proved to be accurate and reliable in a prooftest on an in-service boiler. It is pointed out that variations of flue gas temperature at the inlet of a screwtube have little influence on the heat exchange and total flow resistance of the boiler, and suggested to raise the inlet flue gas temperature as high as possible in the design of a boiler.
出处
《热能动力工程》
CAS
CSCD
北大核心
1990年第2期20-24,共5页
Journal of Engineering for Thermal Energy and Power
关键词
锅炉
螺纹管
烟管
传热
设计
shell boiler
screwtube
flue gas tube
heat transfer
resistance
optimum design
