[1]官钰希,闫欣,方正,等.不伸顶通气双立管排水系统通水能力定流量测试[J].中国给水排水,2025,41(21):149-154.
　GUANYu-xi,YANXin,FANGZheng,et al.Constant Flow Rate Test for Drainage Capacity of Non-extended Top Ventilation Double Stack Drainage System[J].China Water & Wastewater,2025,41(21):149-154.
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不伸顶通气双立管排水系统通水能力定流量测试

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第21期 页码: 149-154 栏目: 出版日期: 2025-11-01
Title:
Constant Flow Rate Test for Drainage Capacity of Non-extended Top Ventilation Double Stack Drainage System
作者:
官钰希1,2， 闫欣2,3， 方正2， 任少龙4
（1.深圳市环境水务集团有限公司，广东 深圳 518031；2.武汉大学 土木建筑工程学院，湖北 武汉 430072；3.华北水利水电大学 环境与市政工程学院，河南 郑州 450000；4.山西泫氏实业集团有限公司 全国建筑排水管道系统技术中心实验室，山西 晋城 048400）
Author(s):
GUAN　Yu-xi1，2， YAN　Xin2，3， FANG　Zheng2， REN　Shao-long4
（1. Shenzhen Water and Environment Group Co. Ltd.， Shenzhen 518031， China； 2. School of Civil Engineering， Wuhan University， Wuhan 430072， China； 3. School of Environmental and Municipal Engineering， North China University of Water Resources and Electric Power， Zhengzhou 450000， China； 4. National Building Drainage System Technology Center Laboratory， Shanxi Xuanshi Industrial Group Co. Ltd.， Jincheng 048400， China）
关键词:
不伸顶通气双立管排水系统;  环形通气;  结合通气;  压力极限;  水封损失
Keywords:
non-extended ventilation double stack drainage system;  loop ventilation;  combined ventilation;  pressure limit;  water seal loss
摘要:
在高层、超高层建筑中，为了建筑的美观性或是满足其他性能要求，排水系统无法伸顶通气。在山西60 m高泫氏塔内进行了3种不伸顶通气排水系统与标准通气排水系统的通水能力对比实验，通过定流量法验证了不伸顶通气形式对标准通气排水系统通水能力的削减程度。不伸顶通气形式对不同类型排水系统通水能力的影响不同，结合通气排水系统受影响最大，排水能力削减了81.25%，设副通气立管的环形通气排水系统受影响较小，改装后仍具有7.0 L/s的排水流量。不伸顶通气形式会给排水系统高区楼层造成极大的负压，影响高层区域卫生器具的水封损失，但是由于排水流量较小，水封损失较小。
Abstract:
In high-rise and super high-rise buildings, the drainage system may not extend through the top for ventilation purpose due to architectural aesthetic considerations or other performance requirements. A comparative experiment was conducted to evaluate the drainage capacity of three non-extended top ventilation drainage systems relative to the traditional extended ventilation drainage system, using a 60-meter-high tower in Shanxi Province as the test site. The reduction in hydraulic performance of the traditional extended top ventilation drainage system caused by the non-extended top ventilation form was assessed using the constant flow rate method. The impact of non-extended top ventilation form on the drainage capacity of various drainage systems varied significantly. The combined ventilation drainage system was the most adversely affected, experiencing an 81.25% reduction in drainage capacity. In contrast, the loop ventilation drainage system equipped with a secondary vent stack demonstrated greater resilience to non-extended top ventilation form, maintaining a post-modification flow rate of 7.0 L/s. The non-extended top ventilation form induced significant negative pressure in the upper floors of the drainage system, potentially compromising the integrity of water seal loss in sanitary appliances within upper floors. However, given the relatively low drainage flow rate, the associated water seal loss remained minimal.
更新日期/Last Update: 2025-11-01