| 摘要 |
<p>Filter batteries are placed between two enclosures which are connected together and between which a pressure difference exists - a secondary reduced pressure enclosure and a greater reduced pressure or main reduced pressure enclosure - with a view to filtering a gaseous medium such as air, contaminated in the secondary reduced pressure enclosure in order to be discharged, purified, into the atmosphere, from the main reduced pressure enclosure; the device is characterised in that each of the filters (a) is included in a support (1) arranged and shaped so as to define two chambers: an upstream entry chamber (2) in communication with the secondary reduced pressure enclosure (D) and a downstream exit chamber (3) connected to the main reduced pressure enclosure (C), the filter (a) being placed between these chambers. <IMAGE></p> |
