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在以煤、薪柴为主要燃料的住宅建筑物中,按规范要求设计的厨房面积往往满足不了储料(一星期)、劈柴、烧火等必要功能。为了尽可能的扩大厨房使用面积又不突破面积指标,于是,在相邻厨房的横墙内设烟囱,将烟囱与横墙设计为一体,沿墙并设3个12×12cm见方的垂直孔洞,中间一孔直通顶层,称气孔或主烟道,两边的孔洞称副烟道,副烟道每层分别在楼板底汇入气孔,其下口与灶室相通。此种烟道虽然取代了室内设备,但实践证明,弊
In the residential buildings with coal and firewood as the main fuel, the kitchen area designed according to the specifications often cannot meet the necessary functions such as storage (one week), picking firewood, and burning fire. In order to expand the kitchen area as much as possible without breaking through the area index, a chimney is set in the cross wall of the adjacent kitchen, and the chimney and the horizontal wall are integrated into one, and three vertical holes of 12×12 cm square are set along the wall. The middle hole passes through the top floor and is referred to as the air hole or the main flue. The holes on both sides are called the secondary flue. Each layer of the secondary flue connects the air hole at the bottom of the floor, and the lower mouth communicates with the stove. Although this kind of flue replaced indoor equipment, it has proved to be harmful.