Several key problems in anticorrosion design and construction

Presents four key problems in anticorrosion design and construction of HVAC system, which are anticorrosion grade standard, design principle of active priority, application of cathodic protection technology and surface treatment and field patching. These problems are not properly recognized and paid attention in the anticorrosion design and construction, and become the key factors impacting the quality and life of anticorrosion engineering. The anticorrosion grade standard determines the rationality of the design standard, the design principle of active priority ensures the scientific design method, the application of cathodic protection technology ensures the safety of corrosion protection system, and the surface treatment and field patching guarantee the quality of the anticorrosion engineering construction.