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求助一下饭店厨房排风设计有哪些要点？有哪位网友能够说说？

求助一下饭店厨房排风设计有哪些要点？有哪位网友能够说说？

浏览：42次 | 提问时间： 07-22 11:23

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5个答案

怎扰 07-22 11:32

为了保证净化效果，在实际设计时排烟风量要求严格按照排风罩的吸入风速计算，罩口的吸入风速通常不低于0.5m/s。最小排风量通常用下式计算：L

穷途陌路又怎样 07-22 11:40

2000PH
式中：L—排风罩排风量，m3/h；
P—罩口的周长（靠墙的边不计），m；
H—罩口至灶口的距离，m。
用上述公式计算出排风量后再按罩口面积核算罩口吸风速度，保证罩口吸风速度不低于0.5m/s。
在实际工程设计中，往往采用估计的方法，根据《民用建筑暖通空调设计技术措施》中对厨房通风量的规定，厨房通风量也可按如下换气次数确定：
中餐厨房：L

予你意 07-22 11:49

40-50（次/h）；
西餐厨房：L

你说的情花在我心中发芽 07-22 11:57

30-40（次/h）；
职工餐厅：L

蛊惑我的温柔 07-22 12:06

25-35（次/h）。
常用的排烟风机有轴流风机、风机箱和离心风机3种。

（1）轴流风机以前应用较多，但由于全压小，在安装油烟净化器后很少应用。

（2）风机箱全压中等，风量可以调节，且噪声较低，常在集烟罩距油烟排放口距离中等的厨房排烟系统中选用。

（3）离心风机全压和风量都可以调节，但由于噪声较大，常需要做降噪处理。当厨房位于建筑物的底部时其排风机宜安放在屋顶，一方面可减少室内噪声污染，同时排风风道处于负压状态，可避免气味外溢。风机安放在屋顶时，一般选择离心风机。

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