60-cubic-meter LNG tank
LNG Tank Technology Pricing Proposal
RMB Unit; (Ten thousand yuan)
Serial Number
Name
Specs and Models
Quantity
Unit Price
Price
Note
1
Low-temperature LNG storage tank
CFL-60/0.8
(Maximum Liquid Capacity: 23T)
1 unit
37.3
37.3
Vertical; group seat support.
Note: This quotation is after tax, excluding shipping costs.
Production Cycle: Shipment ready within 15 days of contract effectiveness.
Payment Terms: 30% deposit upon contract signing, with the remaining balance to be paid in full prior to shipment.
Tank Color: Base coat is polyurethane paint, top coat is white acrylic magnetic paint, with each coat applied twice.
60m3 Vertical LNG Storage Tank Technical Specifications:
Container Category: Type II
Structure Type: Horizontal
Insulation Method: Vacuum Powder Insulation (Pearlescent Sand)
Medium: LNG (Liquefied Natural Gas)
Design Temperature: Inner Shell: -196℃; Outer Shell: -20-50℃
Design Pressure: 0.84 Mpa Outer Shell: -0.1 MPa
Maximum Working Pressure: 0.8 Mpa Outer Shell: -0.1 MPa
Volume: 60 m³ Effective Volume: 54 m³
Material: Inner Shell: S30408 Outer Shell: Q345R
Specs: Inner Shell: ?2500×11310×10/10; Outer Shell: ?3000×12110×10/12
Total Length: 24,260 kg | Insulation Spacing: 250mm | Inner Tank Inner Tube Material: S30408
Insulating Sandwich Material: TCHP-50 Pearl Sand Filling Volume: >52.2 m³
Internal Cylinder Air Pressure Test: Medium: Nitrogen; Test Pressure: 0.96 Mpa
Valves; Low-temperature stainless steel gate valves
Sealing Vacuum Degree: ≤5 Pa
Static evaporation rate ≤ 0.2%/d
Vacuum insulated sandwich leakage gas release rate ≤ 2×10^-6 Pa.m³/s
Manufacturing Acceptance Standards; GB150-2011, "Container Regulations", GB/T18442-2011
Tank pipeline valve instrument list (domestic high-quality products):
Serial Number
Product Name
Specs
Quantity
Manufacturer
1
Low-temperature long-handled ball valve
DN50
6 sets
Furui Special Equipment Co., Ltd.
2
Low-temperature long-handled stop valve
DN10
1 set
Furui Special Equipment Co., Ltd.
3
Three-way ball valve
DN25
1 set
Furui Special Equipment Co., Ltd.
4
Safety Valve
DN25
2 sets
Furui Special Equipment Co., Ltd.
5
Detonation plate
DN25
2 pieces
Shanghai Hualy
6
Level Differential Pressure Gauge
1 set
Sichuan Xinlan Shi or Lan Shi
7
Vacuum Valve Assembly
DN50
1 set
Sichuan Xinlan Shi or Lan Shi
8
Oxygen Pressure Gauge
0-1.0MPa
1 piece
Chengdu Tianwei Instrument Factory
Heze Boiler Factory Co., Ltd.
30, 60, 100 cubic LNG storage tank valves, piping, fittings
Valve selection and design
Process system valves must meet the pressure and flow requirements for transporting LNG, while also possessing low-temperature performance that withstands -196°C. Common LNG valves include pressure relief valves, pressure reducing valves, emergency shutdown valves, low-temperature cut-off valves, safety valves, check valves, etc. The valve material is 0Cr18Ni9.
Pipe, fittings, and flange selection design
Pipes with medium temperatures ≤ -20℃ are made of seamless stainless steel tubes for fluid conveyance (GB/T 14976—2002) with material 0Cr18Ni9. Fittings are all made of seamless stamped fittings with material 0Cr18Ni9 (GB/T 12459). Flanges are of the raised face long-neck butt-welding steel pipe flange (HG 20592), with material 0Cr18Ni9. The flange sealing gasket is a metal-wound type, also with material 0Cr18Ni9. Fasteners are special double-threaded studs and nuts, made of 0Cr18Ni9.
Process pipelines with medium temperatures greater than -20°C, for nominal diameters ≤ 200 mm, use seamless steel pipes for conveying fluids (GB/T 8163) made of 20# steel; for nominal diameters > 200 mm, use welded steel pipes (GB/T 3041—2001) made of Q235B steel. All pipe fittings are made of seamless forged pipe fittings (GB/T 12459) made of 20# steel. Flanges are of raised face,焊接 neck steel pipe flanges (HG 20592) made of 20# steel. The flange sealing gasket is a flexible graphite composite gasket (HG 20629).
LNG process pipelines are installed using焊接 joints, except for necessary flange connections. Insulation is achieved in low-temperature process pipelines with polyurethane insulation supports and composite polyethylene insulation shells. Carbon steel process pipelines are treated for corrosion resistance.
Section 6: Fire Protection Design for LNG Gasification Stations
The fire protection design of the LNG gasification station is based on the LPG section of CB 50028 "Urban Gas Design Code." A dike area is set around the LNG storage tanks to minimize the damage to surrounding facilities in case of an accident. A sprinkler system is installed on the LNG storage tanks with a sprinkling intensity of 0.15 L/(s·m²). The water usage for sprinkling is calculated based on the total surface area of the storage tank on fire. Adjacent tanks within a radius of 1.5 times the diameter of the burning tank are calculated at 50% of their surface area. The water usage for fire hoses is selected according to GBJ 16 "Building Design Fire Code" (2001 edition) and GB 50028 "Urban Gas Design Code" (2002 edition).
