食品加工时产生大量油烟和水蒸气,如不及时排出,对炊事操作和职工健康均有影响。有时雾气冷凝结水后滴在食品上,有碍卫生。如果建筑平面布置不当,这些气体还会流到餐厅或其它房间。所以,选择合适的排气系统是厨房设计中一个重要的问题。 常用的厨房排气系统大体上有三种:即自然排风、半机械排风和机械排风。 一、自然排风——主要利用天窗排气。这种方法要结合建筑平面设计来考虑,选择合适的朝向。天窗必须与夏季主导风向垂直或呈30°以上的角度。同时天窗的部位要配合炉灶的位置,最好在炉灶上部开设天窗,使新鲜空气从下部窗口进入厨房,室内污气则通过天窗顺畅地排出室外(图1)。如在 Food processing produces a lot of fumes and steam, if not discharged in time, have an impact on cooking operations and staff health. Sometimes the mist condenses and drips on the food, impeding health. If the building is not properly laid out, these gases will also flow to restaurants or other rooms. Therefore, choosing an appropriate exhaust system is an important issue in kitchen design. Commonly used kitchen exhaust systems generally have three types: natural exhaust, semi-mechanical exhaust, and mechanical exhaust. First, the natural exhaust - mainly use the skylight exhaust. This method should be considered in conjunction with the architectural plan design and choose the right orientation. The sunroof must be perpendicular or at an angle of more than 30° to the dominant summer wind direction. At the same time, the position of the sunroof should match the position of the stove. It is better to open a sunroof in the upper part of the stove so that fresh air enters the kitchen from the lower window, and the indoor air is smoothly discharged through the sunroof (Figure 1). As in