Treatment of Flange Leakage at the Root of LPG Spherical Tank

With economic growth and rising energy demand, liquefied petroleum gas (LPG), as a clean and high‑efficiency energy source, has become an indispensable part of people’s lives. Nevertheless, unexpected incidents such as flange leakage at the root may occur during LPG utilization. This paper discusses the treatment methods for flange leakage at the root of LPG spherical tanks, so as to provide references and guidance for relevant industries.

1. Leakage Cause Analysis

Flange leakage at the root of an LPG spherical tank can result from multiple factors, including poor flange sealing, improper installation and uneven pressure bearing on flanges. First of all, the root causes of leakage shall be carefully analyzed to identify the crux of the problem.

2. Valve Shut‑off

Once flange leakage at the root of the LPG spherical tank is detected, the top priority is to close valves immediately to cut off gas supply and prevent further leakage. Valve shut‑off is a critical measure to stop accident escalation.

3. Timely Notification of Relevant Personnel

While closing the valves, notify relevant personnel including fire‑safety staff and maintenance personnel for coordinated accident response. Meanwhile, report the incident to competent authorities such as environmental protection and safety supervision departments.

4. Emergency Venting

Emergency venting shall be carried out to mitigate accident impact and risks. During venting, operators must take proper protective measures such as gas masks and anti‑static clothing, and maintain adequate ventilation.

5. Leak‑point Sealing

Targeted sealing repair shall be performed based on leakage causes. Special sealant can be applied to restore sealing performance of leak points. All sealing operations shall strictly comply with operating specifications to guarantee operational safety.

6. Inspection of Relevant Equipment

After leak‑point sealing, conduct a comprehensive inspection of the LPG spherical tank and associated equipment. Focus on fastening conditions of flange connections, sealing integrity and other potential defects. Defects found shall be repaired or component replacements shall be implemented in a timely manner.

7. Routine Maintenance

A sound maintenance system shall be established to prevent recurrence of similar failures. Perform periodic inspections on LPG spherical tanks to guarantee reliable operation and safety. Timely repair detected defects to avoid condition deterioration.

8. Enhanced Safety Training

Flange leakage at the root of LPG spherical tanks constitutes a serious safety hazard. Safety training shall be strengthened to improve staff safety awareness and emergency‑response capability. Training shall cover accident emergency handling and safety operating procedures, enabling employees to master practical safety skills.

Conclusion

Treating flange leakage at the root of LPG spherical tanks is complex and critical. Such accidents must never be taken lightly. It is essential to analyze root causes, implement prompt emergency measures, repair leak points and enforce follow‑up maintenance. Continuous improvement of safety management ensures safe and stable LPG service, and protects people’s lives and property.