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控制工業有害物有哪些通風方法

來源： | 發布日期：2022-12-15

答:在局部地點或整個車間把不符合衛生標准的汙濁空氣排至室外，把新鮮空氣或經過淨化符合衛生標准要求的空氣送人室內，這就是用通風方法來改善車間的空氣境，保障生産人員的生命安全，前者稱爲排風，後者稱爲送風。
防止工業有害物汙染室內空氣最有效的方法是:在有害物産生地點直接把它們捕集起來，經過 離心風機淨化處理，排至室外，這種通風方法叫做局部排風。局部排風系統需要的風量小，效果好。
如果由于生産條件限制、有害物源不固定等原因，不能采用局部排風，或者采用局部排風後，室內有害物濃度仍超過衛生標准，在這種情況下可以采用全面通風方法。全面通風是對整個車間進行通風換氣，即用新鮮空氣把整個車間的有害物濃度稀釋到最高允許濃度以下。全面通風所需的風量大大超過局部排風，相應的設備也較龐大。
按照通風動力的不同，通風系統可分爲機械通風和自然通風兩類。自然通風是依靠室外風力造成的風壓和室外空氣溫度差所造成的熱壓使空氣流動;機械通風是依靠 離心風機等造成的壓力使空氣流動。
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【本文標簽】離心風機高壓風機防爆風機玻璃鋼風機高溫風機

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