# Fermentation Heating Tube Anti-Corrosion Emergency Disposal, Corrosion Leakage Accident Handling & Post-Accident Traceability Specification ## Preface This specification (Doc.172) serves as the emergency risk control document of the entire anti-corrosion management system from Doc.15 to Doc.171. It standardizes emergency pre-warning, on-site isolation, leakage containment, personnel protection, media collection, accident rescue, temporary repair, formal rectification, root cause investigation and accountability traceability for all corrosion-induced pipeline leakage, sudden pipeline rupture, circulating water system contamination and related safety incidents. Hidden corrosion defects may evolve into sudden leakage accidents, which not only lead to raw material loss, production shutdown and environmental pollution, but also trigger scalding, fire and explosion risks in hazardous workshops. This specification establishes a set of standardized emergency response and post-accident closed-loop governance mechanisms, minimizes accident losses, eliminates repeated occurrence of similar corrosion failures, and supplements the preventive management system with passive emergency disposal constraints. ## 1. Emergency Organization, Pre-Planning and Corrosion Risk Early Warning Mechanism A dedicated anti-corrosion emergency response team led by the equipment department is established, with clear division of responsibilities for on-site command, safety isolation, leakage interception, environmental protection treatment, maintenance rescue and information notification. Multiple targeted emergency plans are compiled for different accident scenarios: small flange corrosion seepage, pipeline local pitting leakage, large-area tube rupture, circulating water medium reverse contamination and corrosion-induced fire risks. Regular emergency drills are conducted at least once a year, and drills shall be arranged in advance before high-risk humid seasons and high-chloride production cycles. Real-time online monitoring abnormal alarms, near-miss corrosion risks and ultrasonic thickness early-warning data shall be classified as emergency pre-warning signals, prompting the team to adopt pre-control maintenance to prevent warning events from evolving into formal accidents. ## 2. On-Site Standard Emergency Disposal Procedures for Corrosion Leakage Accidents Once pipeline leakage caused by corrosion is discovered, the first responder shall immediately trigger site-level emergency notification, mark the accident area and evacuate irrelevant personnel. The operation team rapidly closes the inlet and outlet valves of the faulty pipeline, implements safety isolation via blind plate installation to cut off medium and heat source supply. Corrosive spilled liquid shall be contained with leak-proof trays, absorbent materials and drainage interception facilities to avoid ground corrosion, sewage system pollution or slippery safety hazards. For high-temperature medium leakage, thermal insulation and anti-scald protection measures must be deployed for rescue personnel; in explosion-proof hazardous areas, all non-explosion-proof equipment shall be shut down to eliminate ignition sources. After risk stabilization, temporary plugging or bypass diversion shall be adopted to restore partial production as far as possible under the premise of safety. ## 3. Accident On-Site Evidence Collection and Multi-Dimensional Data Archiving Before cleaning the accident site and implementing formal maintenance repair, the management team shall complete full evidence collection including on-site photos, video records, leakage location marking, pipeline wall thickness historical test data, cleaning and passivation execution records, circulating water monitoring logs and patrol inspection ledgers. The corrosion morphology of the failure section shall be preserved; if pipeline cutting replacement is required, the failed pipe segment shall be retained for laboratory failure analysis. All accident occurrence time, environmental conditions, production working conditions, medium chloride content and equipment historical maintenance records shall be sorted and archived to provide objective basis for subsequent root cause investigation and third-party technical appraisal. Evidence falsification, on-site damage or data deletion shall be regarded as serious management violations. ## 4. Multi-Dimensional Root Cause Investigation, Graded Accountability and Rectification Deployment According to accident loss, safety hazard severity and production downtime duration, corrosion leakage accidents are divided into general, major and critical accident grades. The cross-department investigation team analyzes accident causes from six dimensions: equipment material defect, non-standard cleaning and passivation operation, circulating water quality out of tolerance, inadequate regular inspection, environmental seasonal corrosion factors and management supervision loopholes, rather than simply attributing accidents to personnel negligence. Corresponding accountability, corrective actions and preventive improvement schemes shall be formulated for responsible departments and posts. Temporary emergency repair can only resume limited production; the permanent anti-corrosion rectification plan must be implemented within the specified time limit, and enhanced inspection shall be arranged after repair acceptance. ## 5. Accident Case Summary, Warning Training and System Optimization Iteration All corrosion leakage accident investigation reports, rectification acceptance materials and failure analysis conclusions shall be incorporated into the enterprise anti-corrosion knowledge base. Special safety warning training shall be organized for all related posts, with accident recurrence analysis to clarify risk evolution paths and preventive key points. If the accident originates from institutional loopholes, unreasonable parameter settings or missing inspection items, the equipment department shall initiate the revision procedure of corresponding anti-corrosion specification clauses to fill management blind spots. Statistical analysis of annual corrosion accident types, spatial distribution and inducement rules shall be carried out to optimize risk grading standards, inspection cycles and protective technical schemes for high-risk areas. ## 6. System Value This specification completes the closed-loop management from accident emergency disposal to institutional optimization and popularized warning education, forms a dual governance mode combining whole-process preventive anti-corrosion control and post-risk emergency constraint, effectively restrains the repeated outbreak of similar corrosion safety accidents, safeguards personal safety, environmental compliance and stable production operation, and further improves the full-chain, risk-resilient full-lifecycle anti-corrosion management system of fermentation heating tubes.
