冷却塔是空压机运行的核心配套冷却设备，能通过高效热交换带走空压机工作产生的大量废热，保障设备长期稳定在最佳工况区间运行，是工业空压站的标准配置方案。
? 核心适配要求
- Temperature控制标准：空压机最佳进水Temperature为25~32℃，出水Temperature必须低于40℃，水温过高会直接导致换热效率骤降，甚至触发设备高温报警停机。
- 主流适配塔型：优先选用Counter-flow closed cooling tower，全封闭循环管路可避免冷却水与外界空气直接接触，大幅延缓水垢生成，适配空压机对水质和控温精度的高要求。
- 典型应用场景：广泛覆盖电力电工、钢铁冶金、石油化工、注塑车间、制药厂等有连续空压用气需求的工业场景。
? 关键选型要点
- 热负荷匹配：根据空压机实际发热量计算所需散热能力，确定冷却塔规格，避免选型过大造成能耗浪费、过小导致冷却不足。
- Material选择：常规工业环境可选镀镁铝锌板壳体，沿海或含腐蚀气体的工况推荐304/316L不锈钢Material，设备使用寿命可延长3倍以上。
- 工况适配：多台空压机并联场景需预留0.1~1.3℃的Wet-Bulb Temperature附加值，抵消湿热空气回流影响；居民区附近项目需额外选用低噪声型塔体，避免夜间噪声超标。
- 维护便利性：优先选择带内置检修平台的Model，方便后期清理填料沉积物、检查Water Pump和Fan运行状态，降低长期运维成本。
Written by: Zhongliang Yiji Technical Department · 15 Years of Cooling Tower Selection Experience | Last Updated：2026-10-16
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).
