论文部分内容阅读
在34层高度的试验塔上,采用瞬间流发生器排水,考察自循环排水系统和双立管(主副通气+环形通气)排水系统中流量与压力的关系,从而得出各系统在瞬间流排水时所对应的排水能力。结果表明:瞬间流排水时,对于自循环系统和双立管(主副通气+环形通气)系统,系统内最大负压基本发生在系统顶层,最大正压基本出现在中间层。管径布置方式相同时,各系统瞬间流测试的排水能力为:主副通气+环形通气﹥自循环环形通气﹥自循环专用通气,且均小于现行规范值;采用同一系统不同排水立管管径时,排水能力为:DN110×DN110>DN125×DN110。
On the 34-storey test tower, the instantaneous flow generator drainage was used to investigate the relationship between flow and pressure in the drainage system of self-circulated drainage system and double-riser system (main and auxiliary ventilation + annular ventilation) Drainage corresponding to the drainage capacity. The results show that the maximum negative pressure in the system occurs at the top of the system and the maximum positive pressure occurs in the middle layer for the self-circulated system and double-riser system (main and auxiliary ventilation + annular ventilation) system. When the pipe diameters are arranged in the same way, the drainage capacity of instantaneous flow test in each system is as follows: main and auxiliary ventilation + annular ventilation> self-circulation ventilation> special ventilation for self-circulation, both of which are smaller than the current standard values; Drainage capacity: DN110 × DN110> DN125 × DN110.