同一地铁车站两种空调通风系统的比较

研究目的:通过对同一地铁车站2种空调通风系统形式的比较和分析,了解开闭式系统和屏蔽门系统的主要差别和各自的特点。针对空调通风系统专业而言,在工程造价及土建影响方面,明确屏蔽门系统较之开闭式系统的优势。研究方法:采用对比的方法对开闭式系统和屏蔽门系统在系统构成、计算结果、空调通风机房及设备布置方面进行比较,并且就这两种空调通风系统在运行费用、土建造价和环控设备初投资等方面进行技术经济比较和分析。研究结果:由比较结果得出,在设备运行费用上,屏蔽门系统要低于开闭式系统;在初投资上,包括环控系统设备初投资和影响土建造价的投资,屏蔽门系统比开闭式系统节省投资100多万元。研究结论:仅对于空调通风系统而言,在天津地区,无论在初投资还是在运行费用上,屏蔽门系统都比开闭式系统具有一定的优势。进一步证实,天津地铁2号线初步设计空调通风系统由开闭式系统到屏蔽门系统的转变,是可行的。

Comparision Research on Two Kinds of Air Conditions and Ventilated System in Same Subway Station

Research proposes: Through comparing and analyzing of the two kinds of systems,it was well known the main difference and each characteristics of the open /shut ventilated system and the shield system.As far as the profession of air condition and ventilated system is considered,in the aspects of engineering price and affect of constructing,it will be definite the advantages in the shield system compare to the open /shut ventilated system.Research methods: In the aspects of system constituting,calculation in result,ventilated engine room and equipment's arranging,contrast method is adopted to proceed the comparison.At the same time,the aspects of the working expenses,the constructing price and early investment in equipments are compared and analyzed.The author made a technique economy comparison and analysis.Research results:From this paper,we know that the shield system is less than the open /shut ventilated system in the working expenses.On the early investment,include the early investment in equipments and construct price,the shield system saves to invest more one million Yuan.Research conclusions:Only as far as the air condition and ventilated system is considered,whether on the early investment or in the working expenses,the shield system has greater advantage than the open/shut ventilated system in Tianjin.Further confirmed,it is available that air condition and ventilated system was changed from the open/shut ventilated system to the shield system during the first step designs of Tianjin subway No.2 line.