METHOD OF ISOLATING CONVECTIVE FLOWS AND HARMFUL EMISSIONS FROM HEAT-EMITTING EQUIPMENT AND VORTEX-FREE AIR DISTRIBUTOR Russian patent published in 2013 - IPC B08B15/00 

FIELD: process engineering.

SUBSTANCE: invention relates to ventilation equipment and is intended for isolating convective flows from heat-emitting equipment in microelectronics, pharmaceutics, high-precision mechanics and optics. In compliance with this method, air is fed to equipment mounted at exhaust panel from above via the panel of vortex-free air distributor in low-turbulence flow, uniformly via panel area, while flow rate id define from the following equation: V ≥ 0.45/√9.8 × l × β × Δt m/s, where V is incident flow rate; l is equipment length, m; β is air cubical expansion factor, 1/°C, Δt is difference in temperatures of equipment surface and incident flow, °C. Note here that air is withdrawn over the edges of heat-emitting equipment via exhaust panel. Note also that relationship between withdrawn air and plenum air should be kept equal to 1.2-1.4. Dimensions of plenum and exhaust panels and distance there between are defined from the following equations: h_T/(b_O-b_T)≤1; h_T/(l_O-l_T)≤1; h/b_O≤2.0, where h_T, b_T, h are equipment height, width and length; b_O, l_O are width and length of panels; h is distance between panels.

EFFECT: reliable isolation of convective flows and harmful emissions related herewith.

2 cl, 5 dwg