NS导向提馏塔板的流体力学性能

Hydraulic Performance of NS Stripper Plate

介绍了新开发成功的提馏专用塔板—— NS导向提馏塔板。该塔板是在充分考虑提馏段的具体要求 ,吸取各种导向精馏塔板的优点 ,如 BVT蝶形浮阀 ,导向浮阀 ,梯形导向浮阀 ,V形栅板 ,导向筛板 ,NVT减压塔板等 ,同时在借鉴最新塔板基础研究理论的基础上开发出来的。冷模实验结果表明 ,在提馏段 (汽段 )的操作状况下 ,NS导向提馏塔板与提馏段常用开孔率的 F1 型浮阀塔板相比 ,塔板压降降低约 1 3%～ 5 0 % ,泄漏基本没有 ,雾沫夹带可忽略不计。

A new NS guiding stripper plate is proposed. The NS stripper plate combined the advantage of V grid tray, jet tray, slotted sieve tray, guideing rectangular valve tray and guiding trapezoid valve tray, designed to guide the liquid flow to improve the liquid flow pattern on the tray. Experiments were carried out with air/water system in a pilot plant, and a performance comparison was made among three NS plates, F1 valve tray and HTV valve tray with experimental results. It was shown that the NS stripper plate operated at 13 %～50 % lower pressure drop and less liquid weeping and entrainment.