7 LNG Storage Tanks

7.1 General Provisions

7.1.1 Selection of Liquefied Natural Gas Storage Tanks Shall Comply with the Following Regulations:

Conduct risk assessment for the tank design of liquefied natural gas storage, determining the impact on surrounding environment, personnel, and property safety.

Select the tank type shown in Appendix B of this specification for liquefied natural gas storage tanks.

3. In areas with dense entry or facilities, it is advisable to choose double-walled tanks, full-volume tanks, or film tanks.

4. A single-container option is available when the required safety spacing is met.

7.1.2 The design of liquefied natural gas (LNG) storage tanks shall comply with the following regulations:

During and after the OBE period, the tank system should continue to operate.

2. During and after the SSE, the storage capacity of the tank shall remain unchanged and it should be capable of being isolated and maintained.

The liquefied natural gas (LNG) storage tanks should undergo seismic calculations under OBE and SSE conditions, and ensure the safety shutdown of the LNG storage tanks under SSE conditions; the prestressed concrete outer shell of the fully contained tanks should be subjected to ultimate bearing capacity calculations under ALE conditions.

7.1.3 The pipe openings of the liquefied natural gas storage tank should be set at the top of the tank.

7.1.4 The response spectra for OBE, SSE, and ALE should be determined as per the following requirements:

OBE should represent seismic ground motion with a return period of 50 years and a probability of exceedance of 10% (recurrence interval of 475 years), and its response spectrum should not be less than the corresponding value for seismic fortification design as specified in the current national standard for seismic design of buildings, GB 50011, for the region in question.

SSE should represent seismic ground motion with a 2% probability of exceedance within 50 years (return period of 2475 years) and a damping ratio of 5%, and its response spectrum should not be less than the value corresponding to the rare earthquake specified by the current national standard "Code for Seismic Design of Buildings" GB 50011 for the region in question.

The acceleration value of the 3 ALE spectrum should be half of the SSE spectrum acceleration value.

4 When the response spectrum of vertical earthquake is not available, the coefficient of influence of vertical earthquake should not be less than 65% of the maximum value of the corresponding horizontal earthquake influence coefficient.

7.1.5 The auxiliary structures of the Liquefied Natural Gas (LNG) storage tank should be designed in accordance with the OBE approach.

7.1.6 During seismic action, the damping ratios for each design component of the liquefied natural gas storage tank should be selected according to the specifications in Table 7.1.6.

Table 7.1.6: Various Design Components' Anisotropy

7.1.7 The permanent and variable loads of the liquefied natural gas storage tank shall comply with the provisions of Table 7.1.7.

Table 7.1.7: Permanent and Variable Loads on Liquefied Natural Gas Storage Tanks

    Note: 1 a), b) Refer to Appendix B of this specification. "√" indicates consideration, while "—" indicates non-consideration.

"√* indicates that it only applies to the ambient steel tank lid for low-temperature steel exterior cans."

7.1.8 The seismic and accidental loads for liquefied natural gas storage tanks shall comply with the specifications in Table 7.1.8.

Table 7.1.8 Seismic and Accidental Loads on Liquefied Natural Gas Storage Tanks

    Note: a), b) Refer to Appendix B of this specification. "√" indicates consideration, while "—" indicates non-consideration.

7.1.9 The site of the liquefied natural gas receiving station should undergo seismic and geological disaster assessments.

Hezhuo Group 60 Cubic Meter LNG Storage Tank Price

60-cubic-meter LNG storage tank is a low-temperature insulated tank with vacuum powder insulation. The structure consists of an inner and an outer container forming a double-layered vessel. The materials used are Austenitic stainless steel for the outer container, which is selected as Q235-B or 16MnR based on the user's location. The space between the inner and outer containers is filled with insulating material, pumice, and then vacuumed. The insulating material is filled with pumice in a heated state and vacuumed.

60-cubic-meter LNG Storage Tank, Liquid Natural Gas Storage Tank Application Range

Our products are suitable for industries such as steel, metallurgy, construction, chemicals, pharmaceuticals, food, glass, civil, and healthcare, and help reduce gas consumption costs. They are the preferred liquid gas storage containers across various industries.

Product Features of Liquefied Natural Gas Storage Tanks

1. Liquefied Natural Gas Tank Models: Vertical and Horizontal

2. Effective Tank Volume: 2m3-100m3 (common volumes include 2m3, 3m3, 5m3, 10m3, 15m3, 20m3, 30m3, 50m3, 100m3) and can be custom-designed according to customer specifications.

3. Working Pressure: ≥0.2 MPa (common pressures include 0.8 MPa, 1.6 MPa)

4. Storage Media: Liquid Oxygen (LOX), Liquid Nitrogen (LIN), Liquid Argon (LAr), Liquid Carbon Dioxide (LCO2), Liquefied Natural Gas (LNG), etc.

5. Design Pressure: 0.84 MPa, 1.68 MPa; Working Pressure: 0.8 MPa, 1.6 MPa

6. High impact resistance and strong shock absorption properties.

60-cubic-meter LNG Storage Tank - Development of Liquefied Natural Gas Storage Tanks

With the development of the gas and natural gas industries, the application of liquefied natural gas (LNG) storage tanks has become increasingly widespread. In addition to large-scale LNG facilities and LNG receiving stations, which are equipped with large and extra-large horizontal low-temperature storage tanks, air separation units, small and medium-sized LNG facilities, LNG storage and distribution stations, and LNG gasification stations typically feature small to medium-sized horizontal low-temperature storage tanks, with capacities generally under 10,000 m³. As the core equipment of these units, the selection of the storage tank type significantly affects the overall cost and operating expenses of the facility. Therefore, choosing the appropriate type of horizontal low-temperature storage tank to meet the equipment requirements is of paramount importance.