Response Principle: "First relieve pressure and stabilize, then investigate the root cause, and finally implement long-term prevention"
High pressure in a fuel cube tank can lead to tank damage, leaks, and other safety incidents. Following a systematic approach ensures environmental safety and operational integrity.
Emergency Response
Root Cause Analysis
Rectification
Prevention
1. Emergency Pressure Relief
- Immediately stop adding fuel to the tank to prevent further pressure buildup.
- Evacuate surrounding personnel and keep them away from ignition sources to avoid combustion and explosion risks.
- Open the tank's safety valve to slowly relieve pressure, controlling the rate to prevent sudden pressure drops that could damage the tank.
- Turn on the ventilation system to maintain air circulation and dissipate any fuel vapors.
- Monitor pressure changes in real-time using pressure gauges until the pressure drops to a safe range.
2. Root Cause Investigation
- After pressure stabilization, systematically investigate potential causes of the high pressure.
- Check if the safety valve is malfunctioning or blocked, preventing automatic pressure release.
- Examine whether the tank seal is too tight, restricting normal pressure equalization.
- Evaluate if fuel evaporation and expansion in high-temperature environments contributed to pressure rise.
- Inspect pipelines for blockages that may cause localized pressure buildup and poor fuel circulation.
3. Problem Rectification & Repair
- Promptly address identified issues to prevent recurrence of high-pressure situations.
- Replace or recalibrate malfunctioning safety valves to ensure sensitivity and effectiveness.
- Clear any blockages in pipelines to ensure smooth fuel flow and prevent localized pressure buildup.
- If excessive sealing caused pressure rise, adjust sealing devices to balance sealing performance with pressure release requirements.
- After repairs, conduct pressure tests and confirm normal operation before returning the tank to service.
4. Daily Prevention Measures
- Regularly calibrate safety valves, pressure gauges, and other monitoring equipment to ensure accuracy.
- Avoid adding fuel during high-temperature periods when expansion is more likely.
- Control tank load to allow space for fuel expansion, never exceeding recommended capacity.
- During daily inspections, closely monitor pressure values and maintain detailed records for trend analysis.
- Promptly address any abnormal pressure fluctuations to prevent high-pressure risks at the source.
Critical Safety Reminder
High pressure in fuel tanks poses serious risks including tank rupture, fuel leaks, fires, and explosions. Always prioritize personnel safety during emergency responses and ensure proper training for all personnel involved in fuel handling operations.