Part cleaning equipment for output air from road tunnels

摘要

Only one or more of the part flows of output air is cleaned or the cleaning of the part flows occurs with different expense or with different targeting of the harmful material to be removed. The equipment involved incorporates an input air shaft (1), sound dampers (2), a pre-filter (3) and an electro-filter (4), which in parallel arrangement form a cleaning sequence (5). Fans (6), further sound dampers (7) and output air channels (8) are also provided. With effect from the first sound dampers, the flow path is divided into three parallel part flows. With the arrangement, only one or two of the part flows is cleaned in a high power electro-filter from dust and rust and the remaining part flows are either left untreated or simply cleaned with a pre- or coarse filter.