Anticorrosive method for cold exchange equipment

Anticorrosive method for cold exchange equipment

CN
  • CN 1,053,232 C
  • Filed: 07/11/1997
  • Issued: 06/07/2000
  • Est. Priority Date: 07/11/1997
  • Status: Active Grant
First Claim
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1. , a kind of anticorrosive method for cold exchange equipment, make cold exchange device tube side, shell side tube wall surface form phosphate coating earlier, and then on the metallic surface that forms phosphate coating, carry out paint spraying, to finish this process be cold exchange device, pump, cut down group, solution tank connects into the cycle specificity system by sebific duct and iron pipe by technical process, it is characterized in that in this circulating system, import on the cold exchange device and outlet mutual checker orientation in circulating treatment procedure, alkali lye, acid solution, phosphatization liquid are in the state of circulating in the parkerizing process simultaneously.

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