被动式超低能耗建筑卫生间风量平衡模拟研究  

Simulation Study on Air Volume Balance in Passive Ultra-low Energy Building Toilets

作　　者：冯晔 杜佩阳 王芳[1,2] 王昭俊[1,2] FENG Ye;DU Peiyang;WANG Fang;WANG Zhaojun

机构地区：[1]哈尔滨工业大学建筑与设计学院,黑龙江哈尔滨150006 [2]寒地城乡人居环境科学与技术工业和信息化部重点实验室,黑龙江哈尔滨150090 [3]中国建筑西北设计研究院有限公司,陕西西安710090

出　　处：《煤气与热力》2024年第6期33-37,共5页Gas & Heat

基　　金：国家自然科学基金项目(51678179)。

摘　　要：针对冬季工况,模拟分析各层排风竖井入口的压力及排风量,探讨被动房卫生间排风不足的原因以及平衡通风的措施。在排风竖井中因热压作用而存在的烟囱效应导致各层排风不均。高层住户排风量不足,明显低于平均水平,导致卫生间污染物质量浓度较高,异味滞留。高层住户排风竖井入口受到烟囱效应的影响最大,导致压力波动大。随着室外温度升高,排风竖井入口负压及排风量增大,卫生间污染物质量浓度减小。被动房风量平衡改善应从减弱烟囱效应入手,可在各层排风竖井入口处增设单向阀。For the winter working conditions,the pressure and exhaust air volume at the entrance to each floor's exhaust shaft are simulated and analyzed,and the reasons for insufficient exhaust air in the passive house toilets and the measures to balance ventilation are discussed.The chimney effect caused by thermal pressure in the exhaust shaft results in uneven ventilation at each floor.The exhaust air volume of high-rise residents is insufficient,significantly lower than the average,resulting in a high concentration of pollutants in the bathroom and a stagnant odor.The entrance to the exhaust shaft for high-rise residents is the most affected by the chimney effect,resulting in the greatest pressure fluctuation.With the increase of outdoor temperature,the negative pressure and exhaust air volume at the entrance of the exhaust shaft increase,and the concentration to pollutants in the toilet decreases.The improvement of the air volume balance of the passive house should start with reducing the chimney effect,and one-way valves can be added at the entrance to each floor's exhaust shaft.

关 键 词：被动房 排风 卫生间 烟囱效应 室外温度 污染物质量浓度 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]