【Ethylene Tank Farm Technology】What documents are required before inspecting ethylene spherical tanks?
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What documents are required for the inspection of ethylene spheres? Before inspecting an ethylene sphere tank, the main documents required include: ① Design and manufacturing documents: design drawings of the sphere tank, strength calculation reports, certificates of conformity and quality certificates for the shell plates and components provided by the manufacturer, as well as completion drawings of fabrication and inspection certificates ； ②Installation inspection documents and records: spherical tank assembly inspection records, welding records, product test plate reports, non-destructive testing reports, records and location diagrams of weld repairs, post-weld geometric dimension inspection reports, overall heat treatment reports, pressure test reports, foundation settlement inspection reports, spherical tank pillar verticality inspection reports, airtightness test reports ； ③Operation and inspection records of the spherical tank: operating temperature and pressure of the tank, presence of H2S impurities in the medium, filling volume, etc., as well as previous annual inspection reports.
The main documents required before inspecting an ethylene sphere tank include design and manufacturing documents, such as the tank’s design drawings, strength calculations, certificates of conformity, and quality certificates； Installation inspection documents and records, such as assembly inspection records, welding records, non-destructive testing reports, etc ； As well as the operation and inspection records of the spherical tank, such as operating temperature, pressure, medium conditions, and previous annual inspection reports. .