冷却塔布液方式对冷却水系统能耗的影响研究

Study on the Influence of Spraying Method on Energy Consumption of Cooling Water System

本文针对冷却塔的压力布液和重力布液两种布液方式开展对比研究,建立了冷却水系统的数学模型并结合实际运行数据进行验证,模拟对比研究了两种不同布液方式下,冷却水管道长度与流量对系统能耗的影响规律。结果表明:在相同冷却水流量下,重力布液相对压力布液的节能率随冷却水管道长度增大而减小。在相同冷却水管道长度下,重力布液相对压力布液的节能率随冷却水流量增大而增大。当冷却水管道长度为65m、冷却水流量为585 m3·h-1时,冷却水系统采用重力布液可比压力布液节省15.04%的能耗。

The mathematical model of the cooling water system was established for two spraying methods. The mathematical model is verified by the actual data, and the variation of energy consumption with different pipe length and different cooling water flowrate is discussed. When the pipe length fixed, the energy saving rate positively correlates with the flowrate. When the flowrate fixed, the energy saving rate negatively correlates with the pipe length. When the pipe length is 65 m and flowrate is 585 m3·h-1, the energy saving rate is 15.04%.