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化工设备安装在户外,具有许多(主要是经济上)优点,但也出现了一些新的技术问题。其中之一就是设备安装在露天,其外露表面必需防止由直接的大气影响引起的腐蚀。当然,安装在室内的设备,其外露表面也应该防止操作场所或运行地点的周围环境的腐蚀影响。但是,户外大气腐蚀的影响,要比室内的大得多。户外设备直接承受潮湿(露水、雨、雪),空气中的气体污秽物(如烟气)、风、温度变化、辐射热(如太阳光辐射)的作用,不仅加速金属的腐蚀速度,同时还加速防护用的各种油漆和塑料涂层的损坏。
Chemical equipment installed outdoors, with many (mainly economic) advantages, but also some new technical problems have emerged. One of them is that the equipment is to be installed in the open air and its exposed surface must be protected against corrosion caused by direct atmospheric influences. Of course, the indoor installation of equipment, the exposed surface should also prevent the operating environment or operating site of the surrounding environment corrosion. However, the impact of outdoor atmospheric corrosion, much larger than the interior. Outdoor equipment is directly affected by moisture (dew, rain and snow), air and gas contamination (such as flue gas), wind, temperature changes, radiant heat (such as solar radiation) role, not only accelerate the corrosion rate of metal, but also Accelerate the protection of a variety of paint and plastic coating damage.