大型自然通风排烟冷却塔塔型优化设计

在现有的规范规定条件下,本文以某1000MW火电机组为研究目标,开展湿式排烟冷却塔塔型优化工作。以塔高与塔底直径之比RAUZ、喉部直径与塔底直径之比RAUC、进风口高度塔底直径之比RAUL和填料高度RAUE作为塔型的主要变化参数,采用供水系统优化程序对湿式冷却塔进行选型分析。结果表明采用供水系统优化计算结合冷却塔塔型本体优化的选型方式,得到的冷却塔选型方案比较合理,满足工程实际需要,节约工程投资。

Optimization Design of Tower Type for Large Natural Draft Exhaust Smoke Cooling Tower

This article focuses on the optimization design of tower type for natural draft wet exhaust smoke cooling tower using optimization calculation methods based on a detailed research of typical 1000MW coal fired power units and existing design code. According to the main changes parameters of cooling tower including tower height and bottom diameter ratio, throat diameter and bottom diameter ratio, inlet height and bottom diameter ratio and fill height, the optimization calculation program of water supply system was used to decide the selection and economical allocation of cooling tower.The result shows that the dimension of the natural draft wet cooling tower is relatively more appropriate and practical when the cooling towers are selected using optimization calculation of water supply system and in combination with optimization design of cooling tower body.