空气-水系统在郑州某地下车站的应用

以郑州某换乘车站为例,阐述风系统设计中的公共区负荷计算、空气处理焓湿图、设备选型及系统运行模式,水系统设计的原理等。对空气-水系统和全空气系统的能耗进行对比和分析,得出公共区通风空调系统无论采用空气-水系统,还是全空气系统,冷冻水系统都没有受到影响,但空气-水系统的总耗电量约为全空气系统的89%,大大减少了输送能耗,节能效果显著。对空气-水系统和全空气系统的技术经济进行对比,得出空气-水系统能有效减少地下车站机房和风道面积,压缩土建规模,并能降低运行能耗,从而大幅度降低车站规模和造价;但空气-水系统对于运行时间较长的地下车站来说,其末端设备多且分散,运行维护工作量大,检修较为困难,因此对于土建规模受限的车站来说,空气-水系统是一个较好的选择。

Investigation of Air-water system applied in subway underground station of Zhengzhou

A transfer station in Zhengzhou is cited as an example to describe the load calculation in the public area,the air treatment enthalpy diagram,equipment selection and system operation mode,water system design,principles and so on.The energy consumption of the air-water system and the air-air system is compared and analyzed.Results show that the chilled water system is not affected by either the air-water system or the air-air system,but the total air-water system power consumption is about 89％ of the air-air system,which greatly reduced the energy consumption during transmission and was remarkably energy efficient compared with the technical economy of air-water system and air-air system.It is concluded that air-water system can effectively reduce the room and air duct area of underground station,the scale of civil construction,the energy consumption,and the station space and cost.However,for the long-running underground station,the terminal equipment of air-water system was too much and scattered,Which increased the difficulty of service and maintenance.Therefore,the equipment should be used in underground stations in which the architecture space is extremely limited.