工程科学学报，第40卷，第11期：1380-1388,2018年11月 Chinese Journal of Engineering,Vol.40,No.11:1380-1388,November 2018 DOI:10.13374/j.issn2095-9389.2018.11.012;http://journals.ustb.edu.cn 密闭建筑空间缺氧环境下富氧特性研究 张传钊)，刘应书)，王浩宇)区，吴义民)，马晓钧)，陈福祥) 1)北京联合大学生物化学工程学院，北京1000232)北京科技大学能源与环境工程学院，北京100083 ☒通信作者，E-mail:jdthaoyu@buu.cdu.cn 摘要搭建了一套密闭建筑空间室内供氧实验装置，分别研究送氧口个数、送氧口管径、送氧流量及送氧方式的不同对建 筑空间室内的富氧特性及富氧效果的影响.结果表明：送氧口个数、管径、流量及送氧方式不同时，氧气轴向最大浓度分布随 轴向距离的增加呈递减趋势，且距离送氧口轴向距离0~0.55m的范围内，氧气轴向浓度迅速降低：单送氧口时，送氧口管径 及送氧流量不同时所形成的富氧范围大体呈扁椭圆形状，且送氧管径相同时送氧流量越大，富氧范围也越大：双送氧口竖直 向前和相对45°方式进行送氧所形成的富氧范围接近“一头尖一头圆”的扇形，且竖直向前所形成的富氧范围比相对45°送氧 所形成的富氧范围要大：采用双送氧口相背45°方式进行送氧时，管径为6mm的双送氧口所形成的富氧范围大体呈2片扇叶 形状：管径为10mm的双送氧口所形成的富氧范围大体呈2个半圆形状：总送氧流量为1m3.h时，6mm管径的双送氧口相 背45°送氧范围最大，10m管径的双送氧口竖直向前送氧范围最小：相同的总送氧流量及送氧方式下，单送氧口竖直向前送 氧所得到富氧面积比双送氧口竖直向前送氧所得到富氧面积大20%左右：相同的送氧口个数、送氧口流量及送氧方式下，管 径为6mm的送氧口所得到的富氧面积比管径为10mm的送氧口所得到的富氧面积大60%左右. 关键词缺氧环境；富氧特性；送氧方式；富氧面积 分类号T0116.14 Oxygen enrichment characteristics of an enclosed architectural space under anoxic conditions ZHANG Chuan-zhao),LIU Ying-shu),WANG Hao-yu,WU Yi-min),MA Xiao-jun,CHEN Fu-xiang) 1)College of Biochemical Engineering,Beijing Union University,Beijing 100023,China 2)School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083.China Corresponding author,E-mail:jdthaoyu@buu.edu.cn ABSTRACT A set of experimental devices for the measurement of indoor oxygen supply in an enclosed architectural space was built. The devices were used to analyze the effects of the number and diameter of oxygen-feeding ports,oxygen flow rate,and oxygen-feeding mode on the indoor oxygen enrichment characteristics and efficiency of an architectural space.Results show that the distribution of the maximum axial oxygen concentration tends to decline with axial distance under different numbers and diameters of oxygen-feeding ports, oxygen flow rates,and oxygen-feeding modes.Axial oxygen concentration rapidly decreases when the axial distance to the oxygen- feeding port ranges from 0m to 0.55.In general,the oxygen-enriched region that forms in a single oxygen-feeding port under different pipe diameters and oxygen flow rates presents a flat elliptical shape.The oxygen-enriched area expands under a constant oxygen-feeding pipe diameter and an increasing oxygen flow rate.The oxygen-enriched area that forms in double oxygen-feeding ports,wherein one is positioned vertically forward and the other port is positioned 45 opposite the forward-facing port,has a bifurcated shape with one point- ed head and one rounded head.The oxygen-enriched area that forms in the vertical forward-facing port is larger than that in the 45 收稿日期：2018-06-11 基金项目：北京市自然科学基金资助项目(8174064,8182019)：北京市教育委员会科技计划一般资助项目(KM201711417014);北京高等学校 青年英才计划资助项目(YETP1748):国家自然科学基金资助项目(51578065)工程科学学报,第 40 卷,第 11 期:1380鄄鄄1388,2018 年 11 月 Chinese Journal of Engineering, Vol. 40, No. 11: 1380鄄鄄1388, November 2018 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2018. 11. 012; http: / / journals. ustb. edu. cn 密闭建筑空间缺氧环境下富氧特性研究 张传钊1) , 刘应书2) , 王浩宇1)苣 , 吴义民1) , 马晓钧1) , 陈福祥1) 1) 北京联合大学生物化学工程学院, 北京 100023 2) 北京科技大学能源与环境工程学院, 北京 100083 苣 通信作者, E鄄mail: jdthaoyu@ buu. edu. cn 摘 要 搭建了一套密闭建筑空间室内供氧实验装置,分别研究送氧口个数、送氧口管径、送氧流量及送氧方式的不同对建 筑空间室内的富氧特性及富氧效果的影响. 结果表明:送氧口个数、管径、流量及送氧方式不同时,氧气轴向最大浓度分布随 轴向距离的增加呈递减趋势,且距离送氧口轴向距离 0 ~ 0郾 55 m 的范围内,氧气轴向浓度迅速降低;单送氧口时,送氧口管径 及送氧流量不同时所形成的富氧范围大体呈扁椭圆形状,且送氧管径相同时送氧流量越大,富氧范围也越大;双送氧口竖直 向前和相对 45毅方式进行送氧所形成的富氧范围接近“一头尖一头圆冶的扇形,且竖直向前所形成的富氧范围比相对 45毅送氧 所形成的富氧范围要大;采用双送氧口相背 45毅方式进行送氧时,管径为 6 mm 的双送氧口所形成的富氧范围大体呈 2 片扇叶 形状;管径为 10 mm 的双送氧口所形成的富氧范围大体呈 2 个半圆形状;总送氧流量为 1 m 3·h - 1时,6 mm 管径的双送氧口相 背 45毅送氧范围最大,10 mm 管径的双送氧口竖直向前送氧范围最小;相同的总送氧流量及送氧方式下,单送氧口竖直向前送 氧所得到富氧面积比双送氧口竖直向前送氧所得到富氧面积大 20% 左右;相同的送氧口个数、送氧口流量及送氧方式下,管 径为 6 mm 的送氧口所得到的富氧面积比管径为 10 mm 的送氧口所得到的富氧面积大 60% 左右. 关键词 缺氧环境; 富氧特性; 送氧方式; 富氧面积 分类号 TQ116郾 14 收稿日期: 2018鄄鄄06鄄鄄11 基金项目: 北京市自然科学基金资助项目(8174064,8182019);北京市教育委员会科技计划一般资助项目(KM201711417014);北京高等学校 青年英才计划资助项目(YETP1748);国家自然科学基金资助项目(51578065) Oxygen enrichment characteristics of an enclosed architectural space under anoxic conditions ZHANG Chuan鄄zhao 1) , LIU Ying鄄shu 2) , WANG Hao鄄yu 1)苣 , WU Yi鄄min 1) , MA Xiao鄄jun 1) , CHEN Fu鄄xiang 1) 1) College of Biochemical Engineering, Beijing Union University, Beijing 100023, China 2) School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China 苣 Corresponding author, E鄄mail: jdthaoyu@ buu. edu. cn ABSTRACT A set of experimental devices for the measurement of indoor oxygen supply in an enclosed architectural space was built. The devices were used to analyze the effects of the number and diameter of oxygen鄄feeding ports, oxygen flow rate, and oxygen鄄feeding mode on the indoor oxygen enrichment characteristics and efficiency of an architectural space. Results show that the distribution of the maximum axial oxygen concentration tends to decline with axial distance under different numbers and diameters of oxygen鄄feeding ports, oxygen flow rates, and oxygen鄄feeding modes. Axial oxygen concentration rapidly decreases when the axial distance to the oxygen鄄 feeding port ranges from 0 m to 0郾 55 . In general, the oxygen鄄enriched region that forms in a single oxygen鄄feeding port under different pipe diameters and oxygen flow rates presents a flat elliptical shape. The oxygen鄄enriched area expands under a constant oxygen鄄feeding pipe diameter and an increasing oxygen flow rate. The oxygen鄄enriched area that forms in double oxygen鄄feeding ports, wherein one is positioned vertically forward and the other port is positioned 45毅 opposite the forward鄄facing port, has a bifurcated shape with one point鄄 ed head and one rounded head. The oxygen鄄enriched area that forms in the vertical forward鄄facing port is larger than that in the 45毅