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在34层高度的试验塔上,首次采用定流量和瞬间流合流排水方式,瞬间流发生器定为3个,考察定流量排水选择的不同流量及其在不同排水系统中所产生的压力,探究压力与流量之间的关系,得出合流制排水方式下系统相应的排水能力,并进行多角度分析比较,由于管道系统内流量在大部分时间内都是一个定值,所以采用的判定标准为定流量标准。结果表明:DN110×DN110专用通气(结合管每层接)系统的排水能力明显优于DN110伸顶通气系统,且整个管道系统内的压力波动也明显小于DN110伸顶通气系统;DN110伸顶通气系统的排水能力略大于我国《建筑给水排水设计规范》(GB 50015—2009)中相应最大设计排水能力值,而DN110×DN110专用通气(结合管每层接)系统排水能力则略小于其相应的最大设计排水能力值。
On the 34-storey test tower, the constant flow rate and instantaneous flow combined drainage are adopted for the first time. The instantaneous flow generator is set to 3, and the different flow rates of the constant flow drainage and their pressures in different drainage systems are investigated. Pressure and flow of the relationship between the system under the combined drainage system derived drainage capacity and multi-angle analysis and comparison, the flow of the pipeline system for most of the time is a fixed value, so the decision criteria used are Constant flow standard. The results show that the drainage capacity of DN110 × DN110 special aeration system is obviously superior to that of DN110 extensional aeration system and the pressure fluctuation in the whole pipeline system is obviously less than DN110 extensional aeration system. The drainage capacity of the system is slightly larger than the corresponding maximum designed drainage capacity of China’s Water Supply and Drainage Design Code (GB 50015-2009), while the drainage capacity of DN110 × DN110 special ventilation system (every connection of combined pipes) is slightly less than its corresponding maximum Design drainage capacity value.