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哪个清楚离心通风机设计方法有哪些？求告知

哪个清楚离心通风机设计方法有哪些？求告知

浏览：35次 | 提问时间： 07-02 04:30

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哪样紧要 07-02 04:31

厨房排烟机型号选择技巧：1、排烟风机选用主要控制参数为工作温度、风量、全压、效率、噪声、电机功率、转速及轴功率。2、排烟通风机在介质温度不高于85℃的条件下应能长期正常运行。3、排烟通风机应保证：当输送介质温度在280℃时能连续工作30min，并在介质温度冷却至环境温度时仍能连续正常运转。4、在额定转速下，在工作区域内，通风机的实测压力曲线与说明书中给定的曲线应满足下列规定:5、轴流式排烟通风机在规定的流量下，所对应的压力值偏差为±5%。6、离心式排烟通风机在规定的流量下，所对应的压力值偏差为±5%。7、排烟通风机在说明书中给定的工况点下的比A声级噪声限值应符合JB/T8690-1998的规定。8、排烟风机可采用普通钢制离心式通风机或专用排烟轴流式通风机。排烟风机规格按《高层民用建筑设计防火规范》中的规定。排烟风机最小风量为7200m/h，最大风量不宜超过60000m/h(指一个排烟分区的最大风量)。9、排烟风机风量应按所需要的风量值增加不小于10%~20%的富余量。10、防烟加压通风机的风压值应按排烟系统最不利环路进行计算，并保证在防烟楼梯间内余压值40～50Pa。前室、合用前室、消防电梯前室、避难层等内部的余压值25～30Pa。11、消防排烟风机应符合现行标准JB/T10281-2001《消防排烟通风机技术条件》。12、排烟系统的风机宜单独设置。排烟风机的位置宜处于排烟区的同层或上层。希望回答有帮助。

如你 07-02 04:39

离心通风机设计方法有：(1)?满足所需流量和压力的工况点应在最高效率点附近；?(2)?最高效率要高，效率曲线平坦；?(3)?压力曲线的稳定工作区间要宽；?(4)?结构简单，工艺性能好；?(5)?足够的强度，刚度，工作安全可靠；?(6)?噪音低；?(7)?调节性能好；?(8)?尺寸尽量小，重量经；(9)?维护方便。希望可以帮到你。

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哪个清楚离心通风机设计方法有哪些？求告知

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哪个清楚离心通风机设计方法有哪些？求告知