180克镀铝镁锌板 275g镀锌板 304不锈钢板 闭式冷却塔面板

闭式冷却塔（也叫蒸发式空冷器、密闭式冷却塔或封闭式冷却塔）是将管式换热器置于塔内，通过流通的空气、管外喷淋水与管内循环水的热交换保证降温效果。由于循环水是管内闭式循环，其能够保证水质不受污染，很好的保护了主设备的高效运行，提高了使用寿命。外界气温较低时，可以停掉喷淋水系统，起到节水效果。随着国家节能减排政策的实施和水资源的日益匮乏，近几年密闭式冷却塔在钢铁冶金、电力电子、机械加工、空调系统等行业得到了广泛的应用。

Closed cooling tower (also known as evaporative air cooler, closed cooling tower or closed cooling tower) places the tube heat exchanger in the tower, and ensures the cooling effect through the circulating air, spray water outside the pipe and the circulating water in the pipe. Because the circulating water is a closed circulation in the pipe, it can ensure that the water quality is not polluted, which well protects the efficient operation of the main equipment and improves the service life. When the outside temperature is low, the spray water system can be stopped to play a water-saving effect. With the implementation of national energy conservation and emission reduction policy and the increasing shortage of water resources, in recent years, closed cooling tower has been widely used in iron and steel metallurgy, power electronics, mechanical processing, air conditioning system and other industries in recent years.

闭式冷却塔常用的面板有镀锌板、镀铝锌板、镀镁铝锌板和不锈钢板这四类，前三种为基板+防腐层的设计。 那这几种材质的面板有什么区别呢？用哪种材质更好呢？

The panels commonly used in the closed cooling tower are galvanized plate, aluminum coated zinc plate, magnesium coated aluminum zinc plate and stainless steel plate. The first three are the design of substrate + anti-corrosion layer. What's the difference between the panels of these several materials? Which material is better?

镀锌铝镁板（180g）

镀镁铝锌板有其优良的断、切口自我防腐修复能力，及其表面致密的原子层架构，适用于各类较恶劣的环境中，如海边项目使用，佛山万庆在此建议闭式冷却塔选择镀镁铝锌板材质。

Galvanized aluminum magnesium plate (180g)

Magnesium coated aluminum zinc plate has its excellent broken, incision self-corrosion repair ability, and its dense surface of the atomic layer structure, suitable for all kinds of harsh environment, such as the seaside project, Foshan Wanqing in this closed cooling tower to choose magnesium coated aluminum zinc plate material.

镀锌板（275g锌层）/镀铝锌板（150g锌层）

在常规环境下（无酸碱），以锌层10g/年（镀铝锌板6g/年）的腐蚀进度来计算，该类板材可以防护25年，但因塔内部为潮湿环境，腐蚀速度加大，对其使用年限将有所下降。

Galvanized sheet (275g zinc layer) / aluminized zinc sheet (150g zinc layer)

In the conventional environment (no acid and alkali), according to the corrosion progress of zinc layer 10g / year (aluminum coated zinc plate 6g / year), this kind of plate can be protected for 25 years, but because of the damp environment inside the tower, the corrosion speed increases, its service life will be reduced.

不锈钢板（304/0Cr18Ni9）

不锈钢板主要用于各类有酸碱气体产生的环境中，但不锈钢板含有的氯离子，在使用环境中如有氯离子就不可以选择304/0Cr18Ni9不锈钢板，而需要选择更高级别的不锈钢材料或钛材料，但其替换材料成本很高。

Stainless steel plate (304 / 0Cr18Ni9)

 Stainless steel plate is mainly used in all kinds of acid-alkali gas produced in the environment, but stainless steel plate contains chloride ions, in the use of the environment if there is chloride ion can not choose 304 / 0Cr18Ni9 stainless steel plate, and need to choose a higher level of stainless steel material or titanium materials, but its replacement material cost is very high.