| In recent years, the country urban rail transit projects mushroomed rise in succession. Metro as one of a means of transportation is an important part of public transportation, but also to solve urban traffic congestion most effective way, its urban development has a very important strategic significance. Among them, the subway station especially the station selection and management of electrical equipment room fire protection systems are increasingly being everyone's attention, as many designers study was to investigate the issue.Currently, due to the factors of regional development level, owners' ideas and designers accustom of different, each region and each line of electrical equipment and management rooms have different firefighting system. How to choose the automatic fire extinguishing system in the most reliable, economical and environmentally friendly, and can be owners and designers widely recognized and accepted to become water supply and drainage systems need to be studied to explore the issue. In this paper, the common automatic fire extinguishing system of electrical equipment and management room of subway station, compared to all aspects of qualitative and quantitative, etc., analyze the advantages and disadvantages and trying to find out an automatic fire extinguishing system has a comparative advantage.In addition, the article for the IG541 mixed gas fire extinguishing system calculation formula is extremely complex, difficult to remember, step complex situation, in order to make computing easier and faster design, more suitable for the pre-civil cooperation and preliminary design cycle is short, fast changing, study how to simplify its formula to find out an accurate, reliable and easy to remember design calculation methods in an attempt to shorten the design calculation time, the designers from the complex, difficult calculations freed purposes. |
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