烟道的设计要求及安装标准
烟道的设计要求及安装标准
烟道的设计要求:
1.如果条件允许,首层可以不做成品烟道,而是在二层楼板烟道位置做成局部降板(降低500mm左右),做成首层现浇钢筋混凝土烟道。
2.如果烟道穿过楼板,则在根部做混凝土挡坎,挡坎高度应高出厅房楼板标高200mm。以观后效
3.烟道出屋面的部分及风帽必须做成钢筋混凝土整体结构。
5万左右的新车4.成品烟道高度与楼层高度一致,烟道必须在楼板位置接缝。
5.烟道的布置方面,如果对外立面没有影响,可以考虑布置在室外,这样既可以增加房间的使用面积,也可减少厨卫漏水隐患。
烟道的安装标准:
1.烟道必须由下向上逐层安装,特别要注意核对烟道型号和楼层。严格按产品型号代号的标记,按顺序安装,安装时绝对不能错装。
大国重器观后感2.烟道必须在楼板处接缝安装,上下管道之间的接缝用水泥砂素灰做好密封,管道与楼板间隙用C20细石混凝土填塞,并浇注C20混凝土坎(坎厚80mm,坎顶标高高出厅房楼板标高200mm)。每层排风道要做承托处理(烟道下端预埋铁件,在楼板处焊接角钢承托)。
3.烟道安装后,必须用C20细石混凝土灌实烟道与墙面的间隙。如果间隙过小,则应在安装烟道前,将墙面抹灰,防止烟道万一漏烟串过墙面。
4.施工时不允许异物投入烟道中。烟道施工安装过程中,管口应采取遮蔽措施,直到安装接口件时再拆除。遮蔽为薄壁水泥砂浆时,厂家应在其表面预埋铁丝,方便拆除时外拉,以免造成拆除时薄壁掉入烟道内。芋头
5.为规范和方便厨房烟道与排油烟机的连接,管道厂家应提供专用的排风道进风口接口件,供施工单位在厨房内抹灰时嵌埋。打开英语
6.注意首层烟道的沉降,要注意确保首层烟道与建筑共同沉降。
哥哥快一点定期利率7.清洗烟道表面时,烟道与墙面之间应挂网,防止接缝处开裂。
冰心的散文集Regarding the design standards for flues。both the "Trial Standards for Residential Design in Guangzhou" issued in 1997 and the "Residential Design Standards" promulgated by the Ministry of n in 1999 require the design of dedicated flues。The "General Principles for the Design of Civil Buildings" also stipulates that the height of flues extending from the roof should not be less than one meter。However。the n of this n in Guangzhou varies。and the design level is also uneven。For example。many newly built buildings after 1997.even after 2000.did not design flues at all in order to save n costs or to make the r more beautiful。The cooking fumes from each houhold were directly discharged outdoors。This kind of fume exhaust method will cau greater n in cross-shaped and butterfly-shaped residential buildings。Although some buildings have added flues later。it has affected the r of the building and the exhaust effect is not good。Some residential buildings with flues have a single type of flue。mostly vertical single flues。which are limited in that they are prone to cau fumes to flow back and mix with each other.
To comply with the design standards for flues。it is necessary to design dedicated flues for each houhold。and the height of the flues extending from the roof should not be less than one meter。For newly built buildings。it is important to ritize the design of flues over cost savings or aesthetics。This is especially important for cross-shaped and butterfly-shaped residential buildings。where the n caud by fumes can be greater。In n。it is necessary to consider the type of flue to be ud。and avoid using single vertical flues。which are prone to causing fumes to flow back and mix with each other。By following the design standards。we can effectively ce the n caud by cooking fumes and improve the living environment for residents.
在多台抽油烟机共同工作时,倒灌会更加严重。一些楼盘为了增大厨房面积,缩小了竖向烟道的横截面积,没有机械排烟装置,导致排烟系统流量很小,排烟不畅。特别是在一些高层住宅,排烟系统没有达到设计标准。烟道设计有待改进。住宅建筑专家表示,目前楼盘普遍采用的竖向烟道自然通风的作用力主要依靠室内外空气温差形成的热压,但在夏季,室内气温低于室外气温时,这种烟道就不能形成自然通风所需的作用力。因此,楼盘在设计烟道时需要留有安装排气机械的位置和条件。另外,烟道设计时忽略抽油烟机静压,
认为只有热压作用使得烟气从室内排至大气,各住户抽油烟机的流量相等,但事实并非如此。现在国内外生产的抽油烟机流量大、风压高,烟气从室内经过烟道排至室外所依靠的动力主要是抽油烟机提供的压力,而热压所起的作用很小。因此,抽烟机工作时,会形成旋涡和局部压强增大,当烟气在烟道内流动时进入其他层的烟道口,就会发生串味和排气不畅。此外,烟道的横截面不足,在施工中有异物阻塞等原因也会造成排气不畅。设计差的烟道会造成大量有害气体和油烟滞留在楼房之间,污染小区的空气。有害气体会随气流和风从窗户倒灌进住户的家里,造成室内空气污染,令居民的生活受到污染。因此,一个切实可行的解决方法是在抽油烟机与烟道之间的适当位置,增设一道密封功能好的风动闸门,闸门在动力的作用下自动开放,不用时自动关闭,以有效地隔断烟道的异味进入厨房。并在竖井上方安装排油烟风机,只要安装一个联动控制线路,就可使屋顶风机和用户抽油烟机同步运行。