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What to do if scaling occurs due to evaporation cooling in a distillation tower?

2025-09-12View Original

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For manufacturers of polysilicon, alloys, and similar materials, evaporative coolers play an important role by providing essential cooling for production equipment. However, evaporative cooling coils are prone to scaling, as shown in the image below: https://bbs.hcbbs.com/forum.php?mod=attachment&aid=MzYwMzU3MHxkYWU4YjliM3wxNzU3NjUzODgyfDQ5MDUzMDh8NTcwMDk2OQ%3D%3D&noupdate=yes This scaling severely affects the heat exchange efficiency; it not only increases energy consumption but also prevents the production equipment from cooling down properly, potentially compromising its safety. Therefore, it is very important to address the problem of scaling in evaporative cooling coils. By installing magnetic-driven scale prevention and removal equipment on the evaporative cooling water inlet pipes, the problem of scaling in the evaporative cooling coils can be solved. The installation diagram for this equipment is available here: https://bbs.hcbbs.com/forum.php?mod=attachment&aid=MzYwMzU3M3xlOWFkNmM5YnwxNzU3NjUzODgyfDQ5MDUzMDh8NTcwMDk2OQ%3D%3D&noupdate=yes The working principle of this equipment is as follows: 1. Under the influence of an alternating electromagnetic field, calcium and magnesium cations along with carbonate anions in the water combine to form tiny particles, which are then carried away by the water flow. 2. The alternating electromagnetic field alters the growth structure of scale crystals, changing the hard and dense scale layer into a soft one, thereby removing its adhesiveness and tendency to deposit. 3. Through the design of the inverter circuit, appropriate mechanical shock waves are generated to prevent the formation of scale deposits; meanwhile, the interaction between these shock waves and the magnetic field effectively inactivates algae, thus meeting the requirements for preventing and removing scale as well as eliminating algae. 4. The action of the alternating electromagnetic field generates hydroxyl radicals (·OH) in the water, which gradually dissolve the old scale on the pipe walls. Effect of use: After 2–3 months of operation of the equipment, a large amount of the existing scale on the cooling tower coils fell off and settled at the bottom of the tank. By cleaning the bottom of the salvage tank, arc-shaped scale fragments that had fallen off the coils could be seen; a large amount of such fragments were removed, leaving the coils smooth with only a small amount of scale remaining. It effectively suppressed the formation of scale on the cooling tower coil water, causing the existing scale to fall off. (WeChat: TigerPeng2014) Three months after installing the device, the images of the coils are as follows: https://bbs.hcbbs.com/forum.php?mod=attachment&aid=MzYwMzU3NHxjYTFiMjJiMXwxNzU3NjUzODgyfDQ5MDUzMDh8NTcwMDk2OQ%3D%3D&noupdate=yes Images of the old scale falling off (in an arc shape, falling from the coils) are as follows: https://bbs.hcbbs.com/forum.php?mod=attachment&aid=MzYwMzU3NXxmMTRjMmMxN3wxNzU3NjUzODgyfDQ5MDUzMDh8NTcwMDk2OQ%3D%3D&noupdate=yes

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