地铁车站直膨式空调冷却水系统变流量控制的节能分析  

Energy Saving of the Variable Cooling Water Flow Control for Subway Station Direct Expansion Air Conditioning System

作　　者：李峰[1] 郑林涛[2] LI Feng;ZHENG Lintao(Institute of Building Energy Conservation,Guangzhou University,510006,Guangzhou,China)

机构地区：[1]广州大学建筑节能研究院,广州高级工程师510006 [2]华南理工大学亚热带建筑科学国家重点实验室,广州510640

出　　处：《城市轨道交通研究》2018年第7期153-157,共5页Urban Mass Transit

基　　金：广东省科技专项资助项目(2013A011402002)

摘　　要：分析了地铁车站公共区直膨式空调冷却水系统变流量节能控制策略和存在的问题,建立了冷却水系统各设备的能耗模型。以广州某地铁车站为案例,模拟计算了2种冷却水变流量控制方案的全年能耗,结果表明,冷却水系统无论采用定进出口水温差控制方案,还是定冷凝器出水温度控制方案都能实现节能效益;在部分冷负荷的情况下,冷却水系统全年宜采用定进出口水温差的控制方案。Control strategy and problems existing in the variable cooling water flow control for subway station direct expansion air conditioning system are analyzed, an energy consumption model of all the cooling water system equipment is established. Based on the practical conditions of a subway station in Guangzhou City, the annual energy consumption of two cooling water flow control modes is simulated and calculated seperately. The results show that both modes could achieve the goal of energy saving benefit, and in the case of partial cooling load, the cooling water system should adopt the control mode of fixed temperature difference throughout the year.

关 键 词：地铁车站 直膨式空调系统 冷却水系统 变流量控制 

分 类 号：U231.5[交通运输工程—道路与铁道工程]