What is LNG Storage Tank
A liquefied natural gas storage tank or LNG storage tank is a specialized type of storage tank used for the storage of Liquefied Natural Gas. LNG storage tanks can be found in ground, above ground or in LNG carriers. If you want to know the specifications and prices of LNG storage tank, please contact us!
Products Description
The vacuum tank comprises inner and outer cylindrical layers, forming a sealed structure with thermal insulation material sandwiched in-between.
Advantage:
●Small storage volume (5 to 200m³), ideal for small or medium-sized LNG or gas stations.
●High storage pressure (0.1 to 3.0MPa), facilitating convenient gas discharge and recycling.
●Flexibility in placement-installation or resting methods can save space.
●Superior heat thermal effect leading to lower evaporation rates, reducing losses.
Consisting of multiple sub-cans within an inner can enclosed in a larger pot (the mother can), this tank is usually vertically cylindrical, with the outer can being a vertical flat-bottomed arch cover.
Advantage:
●The inner can acts as a pressure container with the same design pressure as the vacuum can.
●Each sub-can's volume is typically kept moderate (200 to 250m³).
●Utilizes pressure from the container for external drainage, enhancing operational ease and reliability.
●Allows for pressure storage when the container meets pressure conditions, extending non-destructive emission times.
Convenient installation and relatively low installation costs, suitable for medium or large LNG or gas stations.
Utilizing both inner and outer spherical structures, the inner tank holds LNG as a pressure vessel with the same work pressure as the vacuum can. The outer can forms a hemispherical or cylindrical structure with vacuum-filled insulation material.
Advantege:
●Storage volume generally ranging from 300m³ to 3000m³.
●Well-structured design with uniform stress distribution and high material utilization.
●Excellent thermal insulation resulting in low evaporation rates.
●High safety performance capable of withstanding substantial internal and external pressure differences.
Occupies a small footprint, suitable for medium or large LNG storage stations or gas stations.
How to maintain LNG Storage Tank
Technician Familiarity
Operating technicians of LNG tanks must understand the tank's structure and principles, strictly adhering to related operating procedures.
Understanding Storage Accessories
Technicians should be familiar with the performance and principles of storage accessories such as pressure gauges, liquid levels, temperature meters, and vacuum test valves.
Outer Tube Safety
The outer tube of the tank operates under external pressure. Under no circumstances should welding operations occur under negative pressure conditions.
Regular Inspections
Regularly check the tank's outer tube for frosting. Upon observing frosting, report immediately to the supervisor and contact the manufacturer for prompt investigation. Monitor closely and take immediate action to prevent accidents from escalating.
Monitoring Connections
Routinely inspect connection pipes, valves, etc., for any signs of frosting. Report issues to the supervisor and arrange necessary actions accordingly.
Instrument Checks
Regularly examine the pressure gauge, liquid level meter, and thermometer of the storage tank to ensure normal display values.
Valve Inspection
Check the sealing performance and movement of connection valves regularly to ensure proper functioning.
Verification Procedures
Conduct regular safety valve, pressure gauge, liquid level, and thermometer verifications as per regulations to ensure their proper operation. Maintain accurate device records.
Anti-Corrosion Measures
Implement regular anti-corrosion treatments for the LNG tank's outer cylinder. Perform maintenance on the pressure gauge, liquid level meter, and thermometer.
Rust Prevention
Regularly address rust and corrosion on tank parts and control instruments like the pressure and liquid level control valves.
Vacuum Checks
Conduct annual vacuum checks or as per operational requirements to ensure the tank's proper functionality.
Safety Measure of LNG Storage Tank
Leakage Prevention
Selection of materials resistant to cryogenic temperatures and active adoption of welded structures.
Early Detection of Leakage
Installation of gas detectors, low temperature detectors, and on-site monitoring cameras.
In the central control room, constantly monitoring information from these devices.
eakage Spread Prevention
Installation of vaporization control facilities, leakage gas diffusion facilities, etc.
Considerations in Handling Fire
Adoption of explosion-proof structures for electrical equipment around LNG handling facilities.
Restriction of fire use by establishing controlled areas (including specially controlled areas).
Tank Leak
Detection and Importance
Identifying leaks in storage tanks is crucial for assessing economic losses, personal safety risks, and environmental pollution. Factors such as corrosion, poor weld quality, cracks, and sealing issues can lead to media leakage.
Inner Tank Leak Analysis
An inner tank leak, especially in the ceiling, can result in abnormal pressure elevation within the storage tank, requiring comprehensive analysis.
Outer Tank Leak and Frosting
Frosting on the outer surface indicates potential leaks, with possibilities including inner tank leakage, outer tank leakage, instability in tank beads, unreasonable design structure, low expansion pressure causing humid air entry, and low-temperature pipeline leaks.
Tank Crack
Causes of Cracking
Tank weld or wall cracking is often due to poor welding processes, excessive residual stress, or weaknesses in high-stress areas like the bottom plate and corner welds. Larger storage tanks exacerbate these issues.
Tank settlement
Sinking Causes
Storage tank sinking results from pressure changes and displacement beneath the tank or its foundation. Mild sinking may not cause severe consequences, but continuous development requires vigilant monitoring and thorough investigation.
Consequences of Sinking
Continuous sinking may lead to deformation or cracking of the storage tank. Strict surveillance, further analysis, and necessary actions are imperative to address potential adverse outcomes.
The Key Components of a LNG Storage Tank
The company conducted a competitive advantage analysis to identify its strengths and weaknesses compared to its rivals.
Built-in Gas Evaporator
The switch functions as a gas evaporator's tray, dehydrating with the outer tube wall. It continuously transforms liquid products into gases, directly supplying gas and increasing pressure in the tank.
01
Improving Circuit
The improving circuit ensures sufficient driving pressure when a large amount of liquid is being used.
02
Emeralder Circuit
The emeralder circuit prioritizes extracting gas above the sealed head space.
03
Use Valve
The use valve controls gas exports.
04
Liquid Valve
The liquid valve regulates the discharge of liquids, either for irrigation or other purposes. Opening the valve at the top supplies liquid to the bottle.
05
Volume Valve
The volume valve separates liquid supercharged/solar terms at the bottom of the container, used for supercharging inside the container.
01
Emael Valve
The emael valve controls a pipeline entering the head space of the container, used to discharge the head space during the filling process.
02
Pressure Gauge
The pressure gauge displays container pressure.
03
Full Vision Liquid Level Meter
The liquid level meter is a floating surface sensor connected to a yellow indicator container, indicating liquid capacity through magnetic components.
04
Safety Valve
The safety valve discharges pressure when the cylinder pressure becomes excessively high.
05
Certifications
Our Factory
Frequently Asked Questions
Hot Tags: LNG Storage Tank, China, suppliers, manufacturers, factory, made in China, LNG Dispenser for Bus, LNG Fuel Dispenser, Fast Fill CNG Dispenser, Self-service Smart CNG Dispenser, Three Banks CNG Dispenser, CNG Dispenser for Bus
