| 摘要 |
<p>The present invention relates to a system for maintaining the temperature at a predetermined temperature (t°C) or less in an underground tunnel through which an underground cable car or a subway train passes, wherein the system comprises: (1) a step of introducing high temperature above ground air (①) underground; (2) a first cooling step for cooling the thus introduced above ground air (①) through a variable cooling (VC) coil; and a ventilating step of using a ventilator (10) to send the cooled air (②) to an underground tunnel (UT) through which an underground cable car or subway train passes. In order to effectively control the generation of heat inside a tunnel, the temperature of the ventilating air (③) inside the underground tunnel (UT) is maintained at (t-5)°C or lower, and when not used, the variable cooling (VC) coil is automatically or manually folded against a wall (W) so as not to interfere with the flow of the introduced above ground air (①). Furthermore, a system for maintaining the temperature in an underground tunnel is provided in which a variable cooling (VC) coil, when not used, is slid into a wall (W) and stored so as not to interfere with the flow of above ground air (①) introduced therein.</p> |
