基于定流量排水方法的排水系统排水能力测试

Test of Drainage Capacity of Drainage System with Constant Flow

在34层高度的试验塔上,采用定流量排水装置排水,考察不同排水流量在各排水系统中所产生的压力,探究压力与流量之间的关系,得出定流量排水时系统相应的排水能力,并进行多角度分析比较。结果表明:定流量排水时,自循环通气、苏维托和60%的伸顶通气系统均是负压先达到判定值,主副通气立管+环形通气管、内螺旋管+旋流器和66%的专用通气系统则是正压先达到判定值。

The drainage device with constant flow was used to drain away water from a 34-floor tower. The different drainage pressure in each drainage system was investigated. The relationship between the pressure and flow rate was explored, and the corresponding drainage capacity of the systems using constant flow was confirmed, with multi-angle analysis and comparison performed. The results showed that when using constant flow, the negative pressures of self-circulation venting, Suwito and 60% of extended ventilation drainage systems reached the decision value first. The positive pressures of main-assistant venting ＋ loop venting, spiral ＋ ordinary type cyclone and 66% of specific vent stack drainage sys- tems reached the decision value first.