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一、序言人防工程要求有足够的自然通风的,这无论是在战时能密闭的人防工程,或者是一般的人防工程都有这样的要求。特别是,要求平战结合,平时能够经常有某种使用的人防工程更要求这样。由于,在地下空间中常有某种气体(例如,天然气,二气化碳,水蒸汽……)产生和在静止的空气中常有某些毒菌产生,这会恶化地下空间的空气,因此,不与外界进行空气交换,就不足以维持地下空间空气的新鲜度,而在地下空间使用中的产生的废气和废热,也要求及时排除,方保地下空间的空气的清洁新鲜。所以,地下空间的自然通风是经常的为地下空间的空气更新发挥作用。这种作用对于地下空间的使用是十分重要的,对地下空间的可用性创造了基本条件。对于通风不良造成窒息性的地下空间。在人类利用地下空间的历史上是累见不鲜的。
First, the preamble Air defense projects require adequate natural ventilation, which can be closed in time of civil air defense projects, or air defense projects in general have such a requirement. In particular, demands for a combination of peacetime and wartime demands that civil air defense projects, which usually have some kind of regular use, require this more. Since some kind of gas (eg, natural gas, carbon dioxide, water vapor, ...) is often generated in underground space and some germs are often produced in still air, this deteriorates the air in underground space, and therefore, no Exchange of air with the outside world is not enough to maintain the freshness of the air in the underground space. The exhaust gas and waste heat generated in the underground space are also required to be removed in time to ensure that the air in the underground space is clean and fresh. Therefore, the natural ventilation of underground space is often to play an important role in the air renewal of underground space. This role is important for the use of underground space and creates the basic conditions for the availability of underground space. Suffocating underground space for poor ventilation. In the history of human use of underground space is not uncommon.