Excellent coolers are a type of heat exchange equipment used to cool fluids. Usually, water or air is used as a coolant to remove heat. There are wall mounted coolers, spray coolers, jacket coolers, and serpentine coolers. The PTFE cooler used for low temperature in power plants is a new type of equipment for waste heat recovery in power plants to reduce exhaust gas temperature. The use of fluoroplastic heat exchangers can prevent acid corrosion and reduce the flue gas temperature to within 100 degrees Celsius. Plastic cooler is a fluoroplastic heat exchanger with strong corrosion resistance.
Coolers often contain calcium, magnesium ions, and acidic carbonates in their cooling water. When the cooling water flows through the metal surface, carbonate is generated. In addition, oxygen dissolved in cooling water can cause metal corrosion and form rust. Due to the generation of rust and scale, the heat transfer efficiency decreases. In severe cases, it is necessary to spray cooling water outside the shell. When scaling is severe, it can block the pipes and render the heat transfer effect ineffective. The research data shows that scale deposits have a significant impact on heat transfer losses. As the sediment increases, it leads to an increase in energy costs, saving energy, extending the service life of equipment, and saving production time and costs.
For a long time, traditional cleaning methods such as mechanical methods (scraping, brushing), high-pressure water, chemical cleaning (acid washing), etc. have encountered many problems when cleaning equipment: they cannot completely remove deposits such as scale, acid liquids corrode equipment and form loopholes, residual acid causes secondary corrosion or corrosion under scale on materials, leading to equipment replacement. In addition, the cleaning waste liquid is toxic and requires a large amount of funds for wastewater treatment.