引用六十年代后期建造的人防工事的地道风为地面设施降温,是近几年发展起来的一门新技术,已较广泛的用于公用设施,但是否也适用于对卫生条件要求高的建筑,如行车调度中心等,就涉及到较复杂的卫生学问题和空调技术问题。必须综合研究地道内外的卫生状况,空气成份、温差规律、冷负荷与地道及地面建筑结构的关系、风量计算与风机选用以及消声技术和自动控制等问题。 Authentic winds, which cite weather defenses built in the late 1960s, have cooled the ground facilities and are a new technology developed in recent years. They have been widely used in public facilities but are also applicable to buildings that require high sanitation , Such as traffic control center, it involves more complex health issues and air-conditioning technology. It is necessary to comprehensively study the hygienic condition, air composition, temperature difference, the relationship between cooling load and the structure of tunnel and ground, the calculation of air volume, the selection of fan and the technology of muffling and automatic control.