在通风空调系统中,设备节能已经引起人们的重视。而系统的室外采风口和排风口的合理设计对于节能,同样有不可忽视的重要意义。针对这个问题,笔者在风洞中做了一些模型实验。发现设计合理的风口局部阻力较小,并能有效地利用室外风压,达到节能的目的。1 关于室外风压的有效利用室外风压是一个值得重视的影响因素,利用得 In ventilation and air conditioning systems, energy conservation of equipment has attracted people’s attention. The rational design of the system’s outdoor air intake and exhaust vents is also important for energy conservation. In response to this problem, the author did some model experiments in the wind tunnel. It is found that the reasonable design of the tuyere has less local resistance and can effectively use the outdoor air pressure to achieve the purpose of energy conservation. 1 Effective use of outdoor air pressure Outdoor air pressure is an important factor that should be taken into account.