What is the 847 coating used to prevent scale on the surface of heat exchange tubes? ?

It should be TH-847 paint

TH-847 carbon steel water cooler* * Anti-corrosion coating is the second generation developed on the basis of CH-784 coating * * Anti-corrosion coating, in addition to absorbing all the advantages of CH-784 coating, has improved the shortcomings in production, construction and storage, making it more complete, reasonable and practical. It can compete with Germany's SAKAPHAN and Japan's Mitong coating, and is * * The "Eighth Five-Year Plan" focuses on promoting projects. 　　 　　TH-847 anti-corrosion coating has excellent water resistance and can be used at higher temperatures (150°C). It is resistant to sea water, salt water, brackish water, industrial circulating water, etc. It fully meets the special requirements of water coolers and is superior to other types of coatings. ； And it contains corrosion-resistant media and industrial water resistance * ng performance, good anti-scaling performance, thermal conductivity * ng, which is also unmatched by any other coating. The paint film of this coating is hard and smooth, and is not easy to absorb retained matter and scale. A small amount of attachments can be washed away with water. Some of the equipment used by the manufacturer has been anti-corrosion for 13 years and is still in use. During the operation period, the heat transfer coefficient of the coated pipe is significantly higher than that of the uncoated pipe, which improves the overall heat exchange effect. The coating also has good anti-corrosion and scale-inhibiting effects on weakly acidic and alkaline media.

The heat transfer coefficient of coated tubes is significantly higher than that of uncoated tubes, which improves the overall heat transfer effect. I doubt this. As the saying goes, "No matter how good the medicine is, it is better not to open the mouth."

It refers to the condition after several years of operation and considering the thermal resistance of dirt.