局部通风方法--qsf999的安全生产小屋

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局部通风方法 | 2011-9-26 10:13:00

局部通风方法

    向井下局部地点进行通风的方法。按通风动力形式的不同，可分为局部通风机通风、矿井全风压通风和引射器通风，其中以局部通风机通风最为常用。
    （1）局部通风机通风。局部通风机的常用通风方式有压入式、抽出式、压抽混合式。
    压入式通风：局部通风机及其附属装置安装在距离掘进巷道口lom以外的进风侧，将新鲜风流经风筒输送到掘进工作面，污风沿掘进巷道排出。
    抽出式通风：局部通风机安装在距离掘进巷道口10m以外的回风侧。新鲜风流沿巷道流入，污风通过风筒由局部通风机抽出。
    混合式通风：混合式通风是压入式和抽出式两种通风方式的联合运用，其中压入式向工作面供新鲜风流，抽出式从工作面抽出污风，其布置方式取决于掘进工作面空气中污染物的空间分布和掘进、装载机的位置。
    （2）矿井全风压通风。全风压通风是利用矿井主要通风机的风压，借助导风设施把新鲜空气引入掘进工作面。其通风量取决于可利用的风压和风路风阻。
    （3）引射器通风。。利用引射器产生的通风负压，通过风筒导风的通风方法称为引射器通风。引射器通风一般都采用压入式

By:qsf999 | 阅读全文 | 回复(10) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 15:33:11

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Re:在漫画中识别身边的违章 | 2017-2-20 17:48:38

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Re:在漫画中识别身边的违章 | 2016-10-21 12:35:44

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Re:在漫画中识别身边的违章 | 2016-10-16 2:04:17

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Re:在漫画中识别身边的违章 | 2016-10-15 20:01:05

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原创 | 2016-9-30 16:01:57

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原创 | 2016-9-28 21:18:39

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