| 摘要 |
<p>A stepped plenum system (10) is provided for distributing particulate laden gas to a plurality of filter bags in a baghouse under substantially equal flow rate and pressure conditions. The stepped plenum system (10) includes an inlet conduit (24) and a plurality of outlet conduits (12-20). Gas is inserted into inlet cross-sectional area (28) of inlet conduit (24) and is directed to outlet conduits (12 and 14) through a stepped pattern design. The first outlet conduit (such as 12) is in fluid communication with the inlet conduit (24) and the second outlet conduit (14) is further in fluid communication with the inlet conduit (24). The second outlet conduit (14) is longitudinally displaced from the first outlet conduit (12) and provides for a second flow region (42) which is of lower cross-sectional flow area than an initial flow region (30) of the inlet conduit (24). Each of the outlet conduits (12) include a plurality of inlet vane members (62) which capture and redirect the flow of the gases into a direction which channels the gaseous flow into respective conduits (12 and 14). Outlet vane members (70) are provided at the outlet sections (60) of the outlet conduits (12 and 14) to further pattern the flow egressing from the outlet conduits (12 and 14) into a filter bag area within the baghouse compartment. Through use of stepped plenum system (10), there is provided a system whereby the particulate laden gas is equally distributed to the outlet conduits (12-20), and further where differences in back pressure are minimized between the respective outlet conduits. It has been found that through the use of the stepped pattern of system (10) in combination with the inlet vane members (62) and the outlet vane members (70), that vortexes and turbulent conditions are minimized in the gaseous flow stream.</p> |
