I. Equipment manufacturing complies with the following regulations and standards:
1、TSG 21-2016Technical Supervision Regulations for Safety of Fixed Pressure Vessels
2、GB150.1～150.4-2011Pressure Vessel
3、NB/T47014-2011"Welding Process Evaluation for Pressure Equipment."
4、NB/T47015-2011"Code of Practice for Welding of Pressure Vessels"
5、GB/T25198-2010"Pressure Vessel End Cap"
6、NB/T47013-2015"Non-Destructive Testing of Pressure Equipment"
7、NB/T47016-2011"Mechanical Property Testing of Welded Specimens for Pressure Equipment Products."
8、JB/T4711-2003"Coating and Packaging for Pressure Vessels"
9、GB/T18442-2011"Fixed Vacuum Insulated Low-Temperature Pressure Vessel"
II. Description of Equipment Features, Performance, and Structural Parameters
1Equipment Features
Liquefied Natural Gas (LNG) storage tanks are horizontal, double-layered cylindrical vacuum powder-insulated structures, with the inner cylinder containingLNGMaterial is:S30408The dome is made of standard elliptical design, with the outer cylinder facing the atmosphere, material beingQ345RLow-alloy steel, an octagonal support structure is used between the inner and outer cylinders. Insulation thickness250mmThe inner and outer tubes are filled with insulation material pearl sand and vacuumed, with the pressure differential between the inner and outer layers being absolute pressure ≤5PaThe vacuum level at the factory exceeds national standards, ensuring the evaporation rate indicators. The storage tank is equipped with a complete set of operation valves and instruments. These valves and instruments allow for on-site observation of liquid intake and outflow, as well as pressure and liquid level.
2Performance and structural parameters
Liquefied Natural Gas (LNG) storage tanks consist of the tank body, instruments, pipelines, valves, etc. These tanks are equipped with both upper and lower liquid inlet methods, allowing for selection and use based on actual conditions.
The inner tank of the Liquefied Natural Gas (LNG) storage tank is equipped with a safety system device featuring dual safety valves. Under normal operating conditions, one set is in operation while the other is on standby. Should the operating safety valve trip, the manual pressure relief valve is immediately opened to release pressure below the maximum working pressure of the tank. Simultaneously, the safety device is swiftly switched to the standby system via the manual handle, effectively ensuring the tank's safety. This safety system device consists of safety valves, explosion-proof devices, vent valves, and three-way ball valves, not only reducing pipeline welding but also offering excellent fire and static electricity prevention structures. Additionally, the safety relief openings on the casing are fully guaranteed to ensure the entire equipment's safety and reliability. The low-temperature pipelines are centrally extracted for ease of operation and control, and the extraction outlets are designed with Duralumin pipe structures to accommodate low-temperature requirements and minimize stress on the pipelines due to thermal expansion and contraction, ensuring the tank's safety. The vacuum relief valve employs a triple-sealed design.O"Formed ring sealing ensures the reliability of the sandwich seal, and is made of full stainless steel, with a compact design. The top design of the liquefied natural gas tank features a suspended structure for easy transportation, lifting, and installation. The unique manhole design ensures internal cleanliness when the container is sealed. Vacuum isolation valves and combined vacuum regulators are used on the liquefied natural gas tank for easy measurement of the vacuum degree in the tank's sandwich and maintenance, extending the tank's lifespan and improving its quality. The liquefied natural gas tank is equipped with a level gauge and pressure gauge for local display of level and pressure. The sandwich insulating material is high-quality domestic pearl sand, with the performance parameters of the pearl sand as follows:"
Serial Number | Indicator Name | Unit | Index |
1 | Loose Bulk Density | Kg/m3 | 50－60 |
2 | Particle size | mm | 0.1－0.2 Not less than80% |
3 | Thermal Conductivity (at atmospheric pressure),Temperature310-77k） | W/m.k.s | ＜0.026 |
4 | Moisture content(Weight) | % | ＜0.1 |
5 | Unexpanded Rate | % | ≤1 |
6 | Temperature | ℃ | －200℃～600℃ |
7 | PHValue | 6.5～7.5 |
Section 3: Inspection, Testing, and Acceptance
1Inspect the inner cylinder material and use only upon passing the inspection.
2All welds to be inspectedGB150.1～150.4-2011Inspection based on standards and drawings is conducted; upon passing the inspection.A、BWeld-like seam100Percent gamma-ray inspectionA、B、C、DWeld-like seam100Percent permeability testing and issue a test report
3After the cylinder assembly is completedGB150.1～150.4-2011Standards and drawings require the inspection of geometric dimensions, pipe end orientations, and shape deviations.
4After inspection, conduct a pneumatic test and issue a pressure test report. Upon passing the pneumatic test, evacuate the air. Once the vacuum level meets the requirements, perform a helium leak test.
5After the interlayer leak test passes, fill with pearlescent sand and then evacuate the air, achieving a vacuum degree ofGB/T18442-2011Standard vacuum degree after final sealing.
Section 4: Technical Documents
1After the contract is signed, the seller shall provide the buyer with the following technical information:
Certificate of Product Quality for the equipment1Set (supplied with equipment)
Including: Material Certificate for Main Pressure Components, Bill of Materials, Structural Dimensions Inspection Report, Inspection Plan, Product Compliance Certificate, Pressure Vessel Product Data Sheet, Welding Records, Non-Destructive Testing Report, Pressure Test Report, Special Equipment Manufacturing Supervision and Inspection Certificate (Local Inspection Authority), Product Brand Copy
As-built drawings Various1Each (supplied with the equipment)
Section 3: Strength Calculation Document1Pack (provided with the equipment)
User Manual1Piece (supplied with the equipment)
⑸ Equipment process diagram and basic reference diagram1Piece (Contract)7Available today (subject to availability)
⑹ Certificate of Conformity for accessories, Instrument Calibration Report 1Piece (supplied with the equipment)
5. Quality Assurance, After-Sales Service, Technical Support
1The equipment's performance meets user requirements, ensuring normal operation within the process range.
2Valves and instruments on the storage tanks come with a one-year warranty. Free service and repair are provided during the warranty period, and damaged parts are replaced at no cost. The equipment warranty period is from the date of delivery.12Month(s).
3During the warranty period, if any issues arise with our manufactured equipment on-site: If the problem is due to manufacturing defects, our company will address it upon receiving formal notice from the customer within regular working hours.2Hourly Response24Within hours, send professional technicians to the site to address the issue. Service personnel will not leave the scene until the fault is resolved. Replacement parts are free within the warranty period; beyond that, only cost-based fees are charged.
4During equipment usage, if a malfunction occurs, the seller shall first address the issue, then determine liability, with the principle of ensuring normal equipment operation.
The supplier offers lifelong technical consultation and promptly answers users' questions at any time.
液化天然气储罐价格液化天然气储罐厂家
LNG储罐厂家，液化天然气储罐价格液化天然气储罐厂家：Shandong Hezhou Group，Please provide the Chinese content you would like to be translated into American English.Manager1??????????。
The basic structure of the LNG storage tank is shown in the figure. The external piping and operating systems are located at the bottom of the tank. The inner cylinder is used to contain LNG, and various pipelines connected to it extend from the inner cylinder to the external piping system through the interlayer space. The outer cylinder, on one hand, forms an enclosed vacuum interlayer insulating space with the inner cylinder, and on the other hand, serves to protect and support the inner cylinder. The support between the inner and outer cylinders is made of glass fiber reinforced plastic, which has excellent insulation properties, used to support the axial and radial loads of the inner cylinder.
液化天然气储罐价格液化天然气储罐厂家
LNG储罐厂家，液化天然气储罐价格液化天然气储罐厂家：Shandong Hezhou Group，AvailableManager1??????????
When filling the tank with liquid, open the upper and lower inlet valves, and activate the exhaust pipe system. The liquid enters the tank through the filling and draining ports, with the liquid level height read by the level gauge. Stop filling when liquid starts to flow out of the overflow port. To drain the liquid, activate the self-pressurization system, and the tank will maintain a steady pressure for draining, with the liquid exiting through the filling and draining ports.
LNG (Liquefied Natural Gas) - the abbreviation for Liquefied Natural Gas in English.
Natural gas is a combustible gas extracted naturally from gas fields, primarily composed of methane.
2, LNG is produced by cooling natural gas to -162℃ at atmospheric pressure, causing it to condense into a liquid.
Liquefied natural gas (LNG) can significantly reduce storage and transportation space and costs, and boasts high calorific value and superior performance.
液化天然气储罐价格液化天然气储罐厂家
LNG储罐厂家，液化天然气储罐价格液化天然气储罐厂家：Shandong He Guo Group，Please provide the Chinese content to be translated.Manager1??????????。
LNG is a clean and efficient energy source.
1. Importing LNG aids energy-consuming countries in diversifying energy supply and ensuring energy security, while exporting LNG helps gas-producing nations effectively develop natural gas resources, boost foreign exchange earnings, and promote national economic development. Consequently, LNG trade is emerging as a new hot spot in the global energy market.
Natural gas, as a clean energy source, is gaining popularity, with many countries listing LNG as an optional fuel. Its proportion in the energy supply is rapidly increasing.
Liquefied natural gas is growing at an annual rate of approximately 12%, making it one of the fastest-growing energy sectors globally.
In recent years, the production and trade of global LNG have become increasingly active, making LNG a scarce clean resource and a new hot spot in the world's oil and gas industry.
To ensure energy supply diversification and improve the structure of energy consumption, major energy-consuming countries are increasingly focusing on the import of LNG. Japan, South Korea, the United States, and Europe are all building large-scale LNG receiving terminals.
6. Major international oil companies are increasingly shifting their new profit growth points to LNG business, with LNG poised to become the next hot global commodity in energy after oil.
China's natural gas utilization is extremely unbalanced, with a very small proportion of natural gas in China's energy mix.
8. From the perspective of China's natural gas development, natural gas resources are limited, and the production of natural gas is far less than the demand, with the supply-demand gap widening increasingly.
9. Although it has not yet reached scale, the characteristics of LNG determine its rapid development.
10. It is predictable that within the next 10 to 20 years, LNG will become the main force in China's natural gas market.
In 2007, China imported 2.91 million tons of LNG, which was more than three times the import volume of 2006.
In January to December 2008, China's total imported liquefied natural gas (LNG) reached 3,336,405 tons. In January to December 2009, the total import of LNG in China was 5,531,795 tons. Amidst the sustained and rapid development of China's economy, there was an extreme shortage of energy resources to fuel it.
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