冷却塔是印刷机温控系统的核心散热终端，主要作用是带走印刷机运行过程中产生的多余热量，保障设备稳定运行与印刷成品质量。
一、核心功能作用
- UV灯配套散热：印刷机的UV固化灯（高压水银灯、金属卤素灯等）工作时发热量极大，冷却塔可带走配套Water Chiller的热量，将UV灯Temperature控制在合理区间，避免因Temperature过高缩短灯体寿命，或Temperature过低导致紫外线能量不足、油墨固化不彻底的问题。
- 印刷滚筒温控：印刷机滚筒高速运转时，摩擦和油墨固化会持续释放热量，冷却塔作为循环冷却系统的散热终端，可及时将滚筒带出的废热排到大气中，避免滚筒表面温升过高引发油墨黏度异常、网点扩大、套印不准、纸张变形等质量问题。
- 输墨系统恒温：配合冷却辊等组件，冷却塔可将墨辊表面Temperature稳定控制在25±1℃，保障油墨流变性均匀，避免因Temperature波动出现油墨转移不均、色差等问题。
- 保护精密部件：及时带走印刷机电子控制系统、驱动Motor等元件的工作余热，避免高温导致元件性能下降、故障频发，延长设备整体使用寿命。
二、印刷机专用冷却塔的附加优势
- 闭环控温与节能：采用高性能传感器和变频Motor，控温精度更高，可根据印刷机实时热负荷自动调节运行Power，降低能耗。
- 联动自动化运行：可与印刷设备连锁控制，印刷机启动后冷却塔自动运行，印刷机Close后自动停机，无需人工额外操作。
- 保障循环水质：采用不锈钢管道、铜管换热器和高精度过滤器，搭配软化水闭式循环，避免冷却系统结垢、杂质沉淀，长期运行换热效率稳定。
- 适配印刷行业工况：针对印刷车间的高湿、多粉尘环境优化设计，耐腐蚀性能更强，适配印刷行业对冷却水质纯度的要求。
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).
