Solutions for High Pressure in LNG Cylinders
2 Answers
Solutions for high pressure in LNG cylinders are as follows: 1. Maintenance: (1) Do not expose the cylinder to high temperatures above 60 degrees Celsius for extended periods. Especially for owners who have installed the cylinder in the truck bed with an added iron protective box, extra caution should be taken in summer to avoid direct sunlight, high electrostatic environments, impacts, and contact with chemicals. (2) Vehicle cylinders should be promptly maintained and regularly inspected at the contracted modification facility to ensure the safety of users and others, as well as property. 2. Daily Inspection: Owners should inspect the cylinder before each vehicle start-up, especially during winter when the vehicle is unused for long periods. The safety valve of the cylinder should be turned off. The inspection interval should not exceed 3 years. The first and second inspections for steel cylinders should be conducted every 3 years, and after the second inspection, every 2 years. For taxi cylinders, inspections should be conducted every 2 years, with the validity period of the second inspection being one year.
As a veteran driver with over a decade of experience operating natural gas vehicles, I've encountered several instances of LNG tank pressure surges, especially during hot summer temperatures when issues are more prone to occur. My advice is to avoid driving immediately—find a safe spot to park and turn off the engine, allowing the tank to cool naturally. Parking under shade or in cool areas on hot days can effectively reduce pressure. Additionally, regular checks on the safety valve's functionality are crucial; a stuck valve can lead to pressure buildup. I recall once failing to inspect before a long trip, resulting in a sudden pressure gauge spike mid-journey that required emergency assistance. Safety should always come first—never attempt to vent pressure or tamper with equipment yourself, as this could cause accidents. Make it a habit to visually inspect the tank and pipelines after each refueling, addressing any issues early. During maintenance, ask technicians to perform pressure tests—a small investment that prevents major headaches, since high-pressure leaks are no joke.
