冷却塔是中频炉冷却系统的核心配套设备，核心作用是保障设备稳定、安全运行，具体功能如下：
- 核心散热降温
中频炉运行时，感应线圈、可控硅、电容器等部件会产生大量热量，冷却塔通过循环水换热，快速带走这些热量，避免设备因过热烧坏，保障熔炼过程持续进行。 - 优化循环水质
开式冷却塔可通过过滤处理减少水中杂质，Closed-Circuit Cooling Tower则采用全封闭循环结构，彻底隔绝灰尘、藻类进入管路，防止结垢堵塞水管，延长设备使用寿命。 - 节能降本增效
Closed-Circuit Cooling Tower可实现水资源封闭循环利用，大幅减少补水和废水排放，同时稳定控制进水Temperature，避免夏季高温导致电炉降Power、熔炼时间延长，降低生产电耗。 - 规避安全风险
配合冷却系统的Temperature、Flow Rate监测装置，冷却塔能维持水温在安全区间，防止因断水、超温引发线圈漏水、熔融金属遇水爆炸等重大安全事故。
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).
