引射器在高层建筑供暖系统中的应用研究  

Study on Application of Ejector in High-Rise Building Heating System

作　　者：赵子琴[1] 马金鑫[1] 蔡尚彪 张军杰[1] 

机构地区：[1]兰州工业学院土木工程学院,甘肃兰州730050

出　　处：《兰州工业学院学报》2014年第1期48-51,共4页Journal of Lanzhou Institute of Technology

基　　金：甘肃省研究生导师计划项目(1214-03);兰州工业学院青年科技创新计划项目(13K-014)

摘　　要：高层建筑由于其楼层较高,水暖系统在垂直方向往往产生较高的静水压力,多采用分区供暖.根据低温热水地板辐射供暖系统热源温度低、供暖效果好的特点,充分应用市政供暖管网的低温回水经直连加压后,为高层建筑高区地暖用户供热,利用高区地暖回水压力驱动引射器,来抽吸低区地暖用户的回水.应用Fluent软件的SIMPLE算法和k-ε两方程湍流模型对引射器进行数值模拟,得到流场的压力和速度分布,为进一步研究引射器在建筑供暖系统中的应用提供一定的理论基础.Hot-water heating system usually incurs high water pressure in vertical direction due to higher floor,so district heating is always used. In this paper,we thoroughly utilize the functions of low-temperature hot water heating system whose temperature of heating source is low and heating effect is good,to design a new heating system which can fully use pressurized backwater flowing through municipal heating grid to serve users in highfloor and simultaneously extract water from low floor using ejector. In this paper,we use the SIMPLE algorithm in Fluent and k-ε turbulence model for the numerical simulation of the ejector to get the pressure and velocity of flow field,Which provides a theoretical basis for further studying abovt the ejector used in the building heating system.

关 键 词：引射器 高层建筑供暖 计算流体动力学 数值模拟 

分 类 号：TU832.1[建筑科学—供热、供燃气、通风及空调工程]