工业气体处理场景下使用冷却塔，核心是通过水-气热交换实现气体降温、冷凝或预处理，以下是完整的规范使用方法：
选型适配与前置准备
- 塔型匹配：含尘、含腐蚀性气体优先选Closed-Circuit Cooling Tower，避免填料堵塞和腐蚀；常规洁净气体可选开式逆流/横流塔，控制气水比在0.8~1.2范围。
- 前置预处理：气体进塔前加装初级过滤装置，去除大颗粒杂质，防止填料堵塞，避免后续换热效率下降30%以上。
- 开机前检查：确认塔体、管道无泄漏，填料平整无破损，电源Voltage稳定在380V±5%，接地电阻≤4Ω，循环水水质无明显泥沙杂物。
标准运行操作流程
- 启动顺序：先开启循环冷却Water Pump，待布水系统出水均匀后，再启动塔体Fan，避免干烧损伤填料。
- 参数管控：每小时记录气体进出口Temperature、循环水进出水温差，将温差稳定控制在5~8℃，水压维持在0.2~0.4MPa。
- 工况适配：处理高温气体时，可适当调高喷淋密度，保证气体与水/换热盘管充分接触，提升冷凝、降温效果。
- 停机操作：先停止进气，待塔内气体置换完成后，CloseFan，等塔内水温降至40℃以下再切断冷却Water Pump电源。
特殊气体配套处理
- 含硫等腐蚀性气体：在冷却塔前端配套脱硫吸附装置，同时塔体选用玻璃钢、304不锈钢等耐腐蚀Material，避免设备腐蚀泄漏。
- 易结露、带粘性粉尘气体：定期对填料进行高压冲洗，防止板结堵塞，每周清理集水盘内的沉积杂物。
日常运维要点
- 每月检查Fan皮带松紧度、Motor绝缘性，每年做一次专业的设备性能检测。
- 循环水定期添加缓蚀阻垢剂，控制浓缩倍数在3~5倍，减少盘管、填料结垢，长期维持换热效率。
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).
