| 摘要 |
This filter module comprises a rectangularly shaped housing made from four separate parts-namely, a pair of rectangularly shaped front and rear sections, respectively, and a pair of rectangular end panels or caps releasably fastened to opposite ends of the front and rear sections to hold them in registry with each other. The two end panels have dovetail-shaped tongue and groove connections with confronting surfaces on the front and rear sections of the module, so that the end panels can be shifted in one direction to secure the front and rear sections together, and in another direction to disassemble the front and rear sections. A plurality of gas discharge tubes project from the rear section coaxially into a plurality of filter tubes, which project rearwardly from gas inlet openings in the front section of the module. Conventionally shaped spinner elements are fixed in the forward ends of the filter tubes to cause incoming gas to be swirled coaxially in the filter tubes, whereby dust and moisture in the swirling gases are urged radially outwardly and through annular spaces between each pair of cooperating tubes to a bleeder duct, which connects a dust bin, or the like to one end of the module. The remaining, clean portions of the gases pass directly from the filter tubes into the registering ends of the discharge tubes for discharge out of the back of the module.
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