Study on Enamel Coating Anticorrosion Technology for Tube Bundle of Shell-and-tube Heat Exchanger
With the improvement of the production process level,the heat exchanger working environment temperature,pressure and stress generated by the high speed flow of fluids are increased,while the corrosiveness of the medium is also increased.Therefore,the heat exchanger with strong anti-corrosion performance has become a rigid demand.In this paper,the anticorrosion technology of heat exchanger tube bundle was studied,and enamel coating was used to protect the tube bundle from corrosion.The processing technology of enamel coating on tube bundle surface was studied,and the anticorrosion properties and thermal shock properties of enamel coating were verified,the results are good.A new process of connecting enamel tube bundle and tube plate was proposed,which replaced the original process of first expansion and then welding,it is verified,the results are good.
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