Research And Development Of Large Volume Liquefied Natural Gas Cylinder Used In Truck

Liquefied natural gas vehicle has high environmental protection,safety,and cost performance.With the rising domestic oil prices in recent years,oil and gas gap distance is gradually widening.Especially in the fierce competition in the transportation industry,it is particularly prominent.Oil and gas price difference will produce high profits.So developing a kind of suitable for long distance transportation of liquefied natural gas(LNG in short)truck instead of fuel trucks become an inevitable trend.As the penetration of liquefied natural gas vehicle market continues to increase,liquefied gas cylinder design and manufacturing has become increasingly mature and perfect,make bigger volume of liquefied natural gas cylinders become a developing trend,big volume of LNG bottle with low cost,convenient maintenance and use,has become the industry owners preferred products.A cylinder structure design and calculation method was constructed.Prevention excessive filling scheme design and improvement was put forward from designing and improving the pressurization system solutions and winding process improvement,etc..The improvement of cylinders can increase the safety factor in the process of using and can improve the performance of gas cylinders stored using the test data.The static rate of evaporation was calculated to verify the improvement of the performance of the cylinder vacuum.As the cylinder key parts,pressure element intensity,the wall thickness design was analyzed through the finite element method in calculating the pressure of the confined,through data analysis demonstrated by the results;And in trial production link,the vibration test,drop test,the fire test,such as,by the experimental results to the structure of product design,the improvement is effective,the product performance meet to the requirement of related standards.