GREEN CASCADE-TYPE DEVICE FOR INTERCEPTING AND FILTERING OIL FUMES

摘要

A cascade-type device for intercepting and filtering oil fumes comprises an exhausting space formed between a housing and a filter and a cascading space formed between the filter and an external plate. A wind entrance communicated with the cascading space is formed between a lower portion of the external plate and the housing. The housing accommodates rinsing liquid whose height is higher than a bottom edge of the external plate. A negative pressure formed in the exhausting and the cascading space while drawing air allows the rinsing liquid blown by a wind pressure to hit the filter and generate water bloom for combining oil molecules of oil fumes. When the oil fumes further pass the filter, the oil molecules are adhered to the filter again and then scoured off by the water bloom, thereby attaining a dual-filtering effect and an automatic cleanliness of the filter and the housing.

主权项

1. A green cascade-type device for intercepting and filtering oil fumes comprising a housing, a filter disposed in said housing, a water inlet pipe extending into an interior of said housing, and a drainpipe extending into said interior of said housing; wherein, said housing includes at least one external plate and an internal plate on which said filter is disposed; said external plate being disposed opposite to said internal plate, an exhausting space being defined between said housing and said filter, a cascading space being defined between said filter and said external plate, and a wind entrance being defined between a lower part of said external plate and said housing for being communicated with said cascading space; a rinsing liquid being accommodated at a lower part of said housing, and a height of said rinsing liquid being higher than a bottom edge of said external plate, whereby said cascading space is closed and enclosed by said housing, said filter, said internal plate, said external plate, and said rinsing liquid, which allows oil fumes of an outside of said housing subject to a wind pressure to be sucked into said cascading space via said wind entrance in order to cause said rinsing liquid to collide with said filter; said drain pipe being disposed at said lower part of said housing and inserted into said interior thereof, a height of a place where said drain pipe is arranged being higher than said bottom edge of said external plate.