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比较了我国标准对冷却塔设计用室外湿球温度的不同规定,并与ASHRAE手册进行了比较。分析了室外湿球温度对冷却塔出水温度的影响。从干燥气候区的实际工况出发,计算得到西北地区各典型城市及新疆20个县市的冷却塔出水温度。结果显示,新疆各县市冷却塔室外计算湿球温度为17~23℃时,冷却塔出水温度为26~30℃。指出了工程技术人员应注意的问题。
The different regulations of our country standard on the outdoor wet bulb temperature for cooling tower design are compared and compared with the ASHRAE manual. The influence of the outdoor wet bulb temperature on the cooling water temperature is analyzed. Starting from the actual working conditions in the dry climate zone, the outlet temperature of the cooling tower in each typical city in Northwest China and 20 counties and cities in Xinjiang was calculated. The results show that when the wet-bulb temperature in outdoor cooling towers of counties and cities in Xinjiang is calculated as 17 ~ 23 ℃, the outlet temperature of cooling tower is 26 ~ 30 ℃. It points out that engineers and technicians should pay attention to the problem.