| 摘要 |
<p>The 'Tube - W is a modification of Chevron tube having six equal sides each of magnitude 'a', in Patent No. 163038 dated 20-01-1986. in the case of the Chevron tube, there is a single V shaped bottom the angle of the V being 90° and the width V2(a) where in two V shaped bottoms are adjusted forming W shape, the angle of each of the two V shapes is 45° i.e. much more steep compared to 90° of chevron shape. The 45° slope is much more steep compared to 90° slope and hence results in more efficient sliding of the flocs which settle on the 45° slope. Hence concentration of the flocs at the bottom of the hopper is relatively higher which further helps to more efficient sliding of the sludge along the longitudinal direction of the tube. The two 45° hoppers in the W shape tube entrap larger quantity of flocs and allow them to slide down the slope of the hoppers in shorter time. In case of standard conventional chevron tube, the vertical height of the tube is also fixed which can be reduced in the present invention. Smaller the height lesser the time required by the flocs to travel, thus even smaller diameter flocs alongwith large size flocs are removed in the present invention -Tube-W making the invention more efficient and effective compared to chevron tube.</p> |
