通風(fēng)排煙預(yù)防火災(zāi)的情況特點(diǎn)

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1．空氣中含有容易起火或爆炸危險(xiǎn)物質(zhì)的房間，其送、排風(fēng)應(yīng)采用防爆型的通風(fēng)設(shè)備。送風(fēng)機(jī)如設(shè)在單獨(dú)隔開(kāi)的通風(fēng)機(jī)房?jī)?nèi)且送風(fēng)干管上設(shè)有止回閥，可采用普通型通風(fēng)設(shè)備。
1. air contains a room with easy fire or explosive material, and the air supply and exhaust air should be ventilated with explosion-proof type. The air blower is located in a separate ventilated machine room with a check valve on the air supply pipe, and ordinary ventilation equipment can be used.
2．排除有燃燒和爆炸危險(xiǎn)粉塵的空氣，在進(jìn)入排風(fēng)機(jī)前應(yīng)進(jìn)行凈化。對(duì)于空氣中含有容易爆炸的鋁、鎂等粉塵，應(yīng)采用不產(chǎn)生火花的除塵器；如粉塵與水接觸能形成爆炸性混合物，不應(yīng)采用濕式除塵器。
2. remove the air that has the dangerous dust of burning and explosion, and should be cleaned before entering the exhaust fan. For air containing explosive aluminum and magnesium and other dust, we should use no spark cleaner, such as dust and water contact can form explosive mixture, and no wet dust collector should be used.

3．有爆炸危險(xiǎn)粉塵的排風(fēng)機(jī)、除塵器，宜分組布置，并應(yīng)與其他一般風(fēng)機(jī)除塵器分開(kāi)設(shè)置。
3. the air exhauster and dust collector with dangerous explosive dust should be arranged in groups and should be set separately from other general fan dust remover.
4．凈化有爆炸危險(xiǎn)粉塵的干式除塵器和過(guò)濾器，宜布置在生產(chǎn)廠房之外的獨(dú)立建筑內(nèi)，且與所屬?gòu)S房的防火間距不應(yīng)小于10米。但符合下列條件之一的干式除塵器和過(guò)濾器，可布置在生產(chǎn)廠房的單獨(dú)房間內(nèi)：⑴有連續(xù)清灰設(shè)備。⑵風(fēng)量不超過(guò)15000m3/h、且集塵斗的儲(chǔ)塵量小于60kg的定期清灰的除塵器和過(guò)濾器。
4., clean dry dust filters and filters with explosive hazardous dust. They should be arranged in the independent building outside the production plant, and the fire protection distance between the buildings and the factory buildings should not be less than 10 meters. But one of the following conditions the dry dust collector and filters can be arranged in a separate room within the production plant. The continuous cleaning equipment. ⑵風(fēng)量不超過(guò)15000m3/h、且集塵斗的儲(chǔ)塵量小于60kg的定期清灰的除塵器和過(guò)濾器。
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