摘要
直接干式冷却(直冷)系统轴流风机的优化选型和设计,是空气供给系统设计的关键技术。轴流风机的风压主要取决于空气流经空气凝汽器时各部分的阻力。分析了空气流经空气凝汽器单排管(束)各部分时产生阻力的原因,确定了单排管束各部分的阻力系数和静压变化规律,为进一步确定空气流经空气凝汽器倾斜"A"型管束时的各部分阻力奠定了基础,可作为直冷系统优化设计的依据。
The optimization of type - selection and design for axial - flow air fans in the direct air - cooled system is the key technology in air - supply system design. The air pressure of axial - flow air fan is mainly determined by air flow passing through the direct air - cooled condenser （DACC）. The causes resulting in resistance while the air flow passing through every part of the single row tube - bundle have been analysed, the variation regularity of resistance coefficient and static pressure in every part of the single row tube - bundle being determined,laying foundation for further determining the resistance in every part while air flow passing through the tilted ＂A＂ type DACC,providing basis for optimization design of the DACC.
出处
《热力发电》
CAS
北大核心
2010年第5期18-21,共4页
Thermal Power Generation
