Liquefied Natural Gas (LNG) storage tanks are specialized products designed for storing LNG, classified as special equipment and Category III pressure vessels. Made from 06Ni9DR material, these tanks undergo ultrasonic testing, hydrostatic and pneumatic testing, on-site inspection by the Technical Supervision Bureau, and are issued with pressure vessel inspection certificates. They are also finished with external rust removal and painting processes. The quality of the LNG storage tanks is strictly evaluated in terms of the material of the pressure components, appearance dimensions, weld quality, operational quality, installation quality, internal equipment, and safety accessories.
Routine physical and chemical testing of the drum material, such as mechanical properties and chemical composition.
The welding joints, seams, tank heads, and mutual geometric positions of all pressure components are strictly inspected via X-ray non-destructive testing and magnetic particle inspection. Testing for product密封性, pressure resistance, and all technical indicators that may affect the safe operation of the product.
Liquefied Natural Gas (LNG) Storage Tanks Category: Products Common Structures: Vertical LNG Tanks, Horizontal LNG Tanks Atmospheric Storage Tanks Atmospheric LNG Tanks and Extra-Large Atmospheric LNG Storage Tanks
Table of Contents
1 Common Structure
2 Important Notes
Common Structure Editing
Common structures of LNG tanks include: vertical LNG tanks, horizontal LNG tanks, vertical mother-child tanks, and atmospheric storage tanks.
Vertical LNG Storage Tank
Volume options include 50 cubic, 100 cubic, 150 cubic, and 200 cubic.
Horizontal LNG Storage Tank
Volume options include 60 cubic and 100 cubic.
Vertical mother and son drums
A mother tank consists of multiple interconnected daughter tanks to meet large storage capacity requirements, with several daughter tanks assembled side by side within a large outer tank. The number of daughter tanks ranges from 3 to 7, generally not exceeding 12. The volume of individual daughter tanks should not be too large, typically between 100 to 150 cubic meters, with the maximum reaching 250 cubic meters. Common sizes include 1000 cubic meters, 1750 cubic meters, and 2000 cubic meters.
Atmospheric Storage Tank:
We offer large and medium-sized atmospheric LNG tanks, as well as extra-large atmospheric LNG storage tanks.
Important Notes
1. Cylinders must be stored in well-ventilated areas, with a distance of at least 1.5 meters from any flame or heat source. Cylinders are strictly prohibited from being heated with fire, scalded with boiling water, or exposed to direct sunlight. Regularly inspect the gas tightness of cylinder valves and pipeline joints, ensuring no leakage. Use soap water to check for leaks; never use an open flame for leak testing.
2. When igniting, first light the primer, then open the gas; do not reverse the order. There should be someone supervising during use, do not leave it unattended to prevent boiling water from overflowing and extinguishing the flame, which could cause the liquefied gas to escape and lead to an explosion. After using the gas cylinder, make sure to close the valve tightly to prevent gas leakage.
3. The liquefied gas in the cylinder should not be completely depleted, leaving a certain residual pressure. The residual pressure should generally be greater than 49.03 kPa (i.e., 0.5 kg/cm², gauge pressure) to prevent air from entering the cylinder. After the liquefied petroleum gas is used up, the remaining residue inside the cylinder is also a flammable substance and should not be disposed of at will to avoid fires caused by the flow and evaporation of the residue.
4. LPG cylinders are pressurized containers that require proper maintenance and regular inspections. Prevent the cylinders from falling or being struck during handling and use. Do not use metal tools to敲击 open the valve, and protect them from direct sunlight and prolonged exposure to rain. The cylinders should be inspected every 2 years.
5. Although the explosive range of liquefied petroleum gas (LPG) is not very wide, its lower limit is small, making it easy to ignite and explode upon leakage. Moreover, since LPG is heavier than air, it tends to flow downwards when leaked into the air, accumulating in low-lying areas and posing a hidden danger of gas explosions. Therefore, it is essential to ensure proper ventilation in areas where gas can easily leak; relying solely on window ventilation is insufficient; attention must be given to the lower ventilation.
6. Upon discovering a liquefied gas leak indoors, promptly open windows and doors for ventilation, allowing it to disperse in the direction away from any open flame. Fire is strictly prohibited in the vicinity. Use the facility only after the fault is resolved and the distinctive odor has dissipated. Dispose of any leaked liquid on the ground by covering it with sand and soil before removing it to a safe location. In case of a gas cylinder fire, immediately close the valve, move it to an open area outdoors, and extinguish the fire using dry powder extinguishers, carbon dioxide extinguishers, or by covering it with a wet sack.
7. Educate children not to tamper with gas cylinders carelessly, and users must be aware of the safety knowledge for using gas cylinders.
