冷却塔的长期稳定运行，离不开规范的日常维护管理，这直接关系到设备换热效率与使用寿命。日常巡检需重点关注四个核心部件：一是填料层，定期清理表面淤积的水垢与杂物，防止换热面积减少导致冷却效率下降；二是收水器，检查密封性能，将飘水率控制在0.001%以内，既减少水资源浪费，也避免周边环境出现“白雾”与结冰隐患；三是Fan与二级能效Motor，定期加注润滑脂，检查叶片动平衡，将运行Noise控制在72dB(A)以内，符合低噪工况要求；四是循环水水质，定期添加缓蚀阻垢剂，防止盘管与管道结垢堵塞，闭式塔的304不锈钢盘管需每年做一次水压测试，排查腐蚀泄漏风险。
常见故障可按以下逻辑快速排查：若出水Temperature降不下来，先检查填料是否堵塞、Fan转向是否正确，再核对实际循环水量是否超出塔的额定处理能力；若出现明显飘水，优先调整收水器的安装角度，检查布水系统是否存在偏流；若MotorCurrent过载，需排查Fan叶片角度是否过大、传动皮带是否松动，避免长期过载烧毁Motor。每年入冬前，必须对闭式塔的盘管、室外管道做彻底的防冻排空，或开启电伴热系统，防止低温冻裂设备，保障冬季连续运行安全。
Written by: Zhongliang Yiji Technical Department · 15 Years of Cooling Tower Selection Experience | Last Updated：2026-10-17
FAQ
How to choose between a closed-circuit and an open cooling tower?
For working conditions that demand clean water (such as vacuum furnaces, high-frequency furnaces, and injection machine hydraulic oil cooling), a closed-circuit tower is preferred: the cooled medium circulates inside the coil without direct contact with air, so it resists scaling, algae and particle contamination, with stable heat transfer and low maintenance. For ordinary recirculating water scenarios with tight water budgets or cost sensitivity, an open tower costs less upfront but requires supporting water treatment.
What are the footprint and connections of a 100 t closed-circuit cooling tower?
Taking a standard 100 m3/h closed-circuit tower as an example: overall dimensions are approximately 3500 x 1500 x 2800 mm with a footprint of about 5.25 m2; inlet and outlet piping is typically DN100, with a 5-10 C temperature drop under standard conditions. Refer to the product specification table for details; non-standard dimensions can be customised on site.
How do I size the pump and head for a cooling tower?
Pump flow is selected according to the rated circulating water volume of the cooling tower; head must account for pipeline friction losses, local resistance, equipment elevation difference and the necessary margin. Pressure-bearing equipment such as injection machines also requires reserve for the working pressure. It is recommended to hand the operating data (flow, temperature difference, installation height, pipe diameter and length) to technical staff for calculation, to avoid an undersized pump or excessive head that wastes energy.
What water treatment does a closed-circuit cooling tower need?
The outer circulating water of a closed-circuit tower still contacts air, so softened make-up water, periodic corrosion and scale inhibitor dosing, and control of the concentration ratio are recommended. The inner circulating medium should be softened water, antifreeze or pure water according to process requirements; outdoor installation in winter requires freeze protection (electric tracing or draining).
