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Description
4×10000m³LNG Atmospheric Storage Tank
With the development of LNG industry, LNG storage is becoming more and more large and atmospheric, and the domestic design and manufacturing has reached 50000 M ³， In the coastal area, a single station with a capacity of 250000 m has been built ³、 160000 M ³ LNG atmospheric storage tank is used to receive LNG on board.
At present, the LNG tanks designed, manufactured and installed in China are mainly 5000m long ³ And 10000m ³， It is widely used in LNG liquefaction plants or LNG peak shaving stations. The amount of LNG produced by industrial tail gas is generally small, and 1000m is commonly used ³ LNG storage tanks on the left and right.
Introduce
Main structure type
Vertical cylindrical, double wall, flat bottom, vault (200 ~ 50000m) ³）、 6000m ³ The above is floating roof (self-supporting ceiling).
Insulation method: double wall powder accumulation insulation
Basic form: high desktop
Process system
01. Purge system
02. Inlet system
03. Drainage system (external and submerged)
04. Backflow system after pump
05. Mezzanine nitrogen supply system
06. Liquid level and pressure measurement system
07. Temperature measurement system
08. Gas emission system
09. Bog pipeline system
10. Analytical sampling system
11. Safety system
12. Voltage stabilizing system
13. Fire protection system
Introduction of foam glass brick
Light capacity, 150 kg / M ³ about;
Low thermal conductivity, below 0.050w / m * k (38 ℃), stable thermal conductivity;
Moisture proof
Small water absorption, about 0.2%
No combustion;
No mildew and corrosion;
High strength, compressive strength ≥ 0.8MPa, acid corrosion resistance (except hydrogen fluoride);
The CFC and HCFC in this letter are non-toxic;
Stable physical and chemical properties, stable size.
Design, manufacture and acceptance standard of LNG storage tank
European standard bsen14620 "design and field manufacture of vertical, cylindrical, flat bottomed, cooled liquefied storage tanks with operating temperatures between 0 ℃ and - 165 ℃"
● JB / t9077-1999 general insulated powder tank
● JB / t4735-1997 steel welded atmospheric pressure vessels
American Standard api620 design and construction of large welded low pressure storage tank
● JB / T4730-2005 nondestructive testing of pump equipment
Code for construction and acceptance of vertical cylindrical steel welded storage tank (GB 50128-2005)
● GB / t20368-2006 liquefied natural gas (LNG) production, storage, transportation and loading
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