Is Excessive Pressure in LNG Vehicle Gas Tanks Normal?
2 Answers
LNG buses are public buses that use liquefied natural gas (LNG) as fuel. Excessive pressure in LNG vehicle gas tanks is not normal and requires timely repair. Below is a detailed introduction regarding vehicle maintenance: 1. Overview: Vehicle maintenance is a general term for vehicle upkeep and repair. It involves using technical means to diagnose faults in malfunctioning vehicles, identify the causes of the faults, and take certain measures to eliminate the faults and restore the vehicle to a certain level of performance and safety standards. 2. Others: Vehicle maintenance includes major repairs and minor repairs. Major vehicle repairs refer to restorative repairs that use methods such as repairing or replacing any vehicle components (including foundational parts) to restore the vehicle's proper technical condition and fully (or nearly fully) recover its service life. Minor vehicle repairs refer to operational repairs that use methods such as replacing or repairing individual parts to ensure or restore the vehicle's operational capability.
As an LNG vehicle driver, I've encountered several instances of excessively high gas cylinder pressure, which is definitely abnormal. Normal pressure typically fluctuates within a certain range, such as slightly increasing during long-distance driving in hot weather. However, consistently high pressure might be caused by stuck cylinder valves or aging sealing gaskets leading to gas leaks. I remember one time while driving when the dashboard showed a sudden pressure spike. I immediately pulled over to inspect and found it was due to uneven cylinder expansion caused by extremely high external temperatures. Fortunately, I took timely cooling measures to prevent any incident. Excessive pressure can easily trigger leaks or explosions, especially in high-temperature environments where risks are greater. I recommend regularly monitoring gauge readings, maintaining proper ventilation, and stopping immediately to contact repairs if issues arise. Although LNG vehicles are eco-friendly, safety should never be neglected. Before every long trip, I make it a habit to check cylinder connections and valves – prevention is always better than cure for peace of mind.
