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2. 发明授权

US4297113A Gas filtration apparatus 失效
标题翻译：气体过滤装置
公开(公告)号：US4297113A
公开(公告)日：1981-10-27
申请号：US126553
申请日：1980-03-03
申请人： Louis Theodore
发明人： Louis Theodore
IPC分类号： B01D46/02 , B01D46/46 , B01D46/00
CPC分类号： B01D46/0095 , B01D46/02 , B01D2265/023
摘要： An apparatus wherein dust-laden gas is pumped into a housing having a plurality of tubular fabric filter bags. The gas flows through the bags to the interior of each tubular filter element and the solid particulates are deposited on the exterior surface of the fabric element. The clean gas from the interior of each filter element passes to the clean gas plenum via a thimble opening. Whenever one of the bags is ruptured, the gas velocity at the thimble opening increases dramatically due to the elimination of the resistance to gas flow by the fabric. A valve actuated by the sudden increase in gas velocity closes the thimble opening automatically and, thus, the contamination of the clean gas stream with solid particulates is prevented. The entire filtration apparatus is shut-down automatically by pressure control whenever, 25% or more of the fabric filter bags are ruptured and their thimble openings are closed by the respective valves.
摘要翻译：将含有载气的气体泵送到具有多个管状织物过滤袋的壳体中的装置。气体流过袋子到每个管状过滤器元件的内部，并且固体颗粒沉积在织物元件的外表面上。来自每个过滤元件内部的清洁气体通过套管开口传递到清洁气体压力室。每当袋子之一破裂时，由于消除了织物对气体流动的阻力，套管开口处的气体速度急剧增加。由气体速度的突然增加致动的阀门自动关闭套筒开口，因此防止了清洁气体流与固体颗粒物的污染。当织物过滤袋的25％或更多破裂并且其顶针开口被相应的阀门关闭时，整个过滤装置通过压力控制自动关闭。

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