Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG storage tanks, oxygen/nitrogen/argon storage tanks, and CO2 storage tanks; pressure vessel products like denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, and LNG tank containers, etc., as green energy equipment.
When storing liquid nitrogen in low-temperature storage tanks, the following points should be noted:
Protective Gear: When operating low-temperature storage tanks, it is mandatory to wear appropriate protective gear, including gloves, protective suits, and non-slip shoes. This equipment safeguards the skin from the low temperatures of liquid nitrogen and other hazards.
Avoid Direct Contact: Liquid nitrogen is extremely cold and can cause chilling. Therefore, avoid direct contact with liquid nitrogen, especially with skin. Use tools or instruments for handling, and prevent hands from coming into direct contact with liquid nitrogen.
Ventilation Requirements: Ensure adequate ventilation in the operational area of low-temperature tanks to expel gases produced by the evaporation of liquid nitrogen. Maintain air circulation to avoid excessive oxygen concentration and reduce the risk of fire and explosion.
Prevent Leaks: Regularly inspect the low-temperature storage tanks for leaks and equip them with leak detection and alarm systems. In case of a leak, take immediate action to control and repair it. Avoid the hazards of liquid nitrogen leaks to personnel and the environment.
Fire Prevention Measures: Liquid nitrogen has a low boiling and freezing point, which can easily cause fires. Measures such as setting up fire barriers around low-temperature storage tanks and using fire-resistant coatings are taken to prevent the occurrence and spread of fires.
Electrostatic protection: Electrostatic buildup in low-temperature tanks may cause sparks, increasing the risk of fire. Measures should be

Tanks are specialized storage equipment that require regular inspections and maintenance to ensure safe operation. The following are common inspection methods for tanks:
Appearance Inspection: Regularly inspect the exterior of the storage tank for any leaks, corrosion, deformation, cracks, and other issues. Pay special attention to the integrity of the tank's joints, welds, and valves.
Pressure Test: Conduct pressure tests to assess the tank's sealing performance and pressure resistance. Use a pressure gauge or pressure sensor to test the tank's pressure, ensuring it can withstand the designed pressure.
Ultrasonic Testing: Ultrasonic testing can be used to detect corrosion and cracks in storage tank walls. By scanning the tank with an ultrasonic probe, potential defects and issues are detected.
Magnetic Particle Inspection: Magnetic particle inspection is used to detect cracks and the quality of welds in storage tank walls. By applying magnetic particles to the surface of the tank and then using a magnetic particle inspection instrument to observe for any particle accumulation, one can determine the presence of cracks or weld issues.
Environmental Monitoring: Conduct regular environmental monitoring around storage tanks, including the detection of gas concentrations and temperatures, to ensure the safety of the surrounding environment.
It's important to note that tank inspections should be conducted by authorized inspection agencies or certified inspectors. The frequency and methods of inspection should be determined based on the tank's usage, scale, and relevant regulatory requirements. Regular inspections and maintenance can help identify potential issues early on, ensuring the safe operation of the tank.

Low-temperature liquid storage tanks (such as liquid nitrogen, liquid oxygen, liquid argon, etc.) possess several advantages:
High-Density Storage: Low-temperature liquid storage tanks can convert gases into liquids, significantly enhancing storage density. Compared to gas storage, liquid storage can accommodate more material in a relatively smaller space, improving storage efficiency.
Low-Temperature Retention: The low-temperature liquid storage tank has excellent insulation properties, effectively maintaining the low temperature of the liquid. The design and construction of the insulation layer reduce heat conduction and loss, keeping the liquid at a low temperature and minimizing evaporation and waste.
Supply: Low-temperature liquid storage tanks offer a stable liquid supply. Through internal pressure control and pipeline system design, precise liquid supply is achievable, catering to industrial production and experimental needs.
Safety: Low-temperature liquid storage tanks offer a high level of safety. Liquid storage is less prone to gas leaks and explosions compared to gas storage. Tanks are typically equipped with safety devices such as pressure relief valves and level alarms to ensure timely action can be taken in abnormal situations, safeguarding the tank's safety.
Multi-functional Applications: Low-temperature liquid storage tanks are widely used in various fields, such as industrial production and scientific research. Liquids like liquid nitrogen and liquid oxygen can be used for freezing, refrigeration, and gas supply, meeting diverse industry needs.
Overall, low-temperature liquid storage tanks offer advantages such as high-density storage, temperature retention, supply, safety, and multi-functional applications, providing reliable liquid storage and supply solutions for various industries.

When selecting the base for a liquid argon tank, consider the following factors:
Load Capacity: The support must be capable of bearing the weight of the liquid argon tank. Select a support with sufficient load capacity based on the tank's capacity and dimensions. Typically, the weight of the liquid argon tank is specified in the design specifications, allowing you to determine the support's load capacity from these data.
Stability: The support must provide adequate stability to prevent any tilting or swaying of the tank during operation. The design of the support should consider the tank's center of gravity and its changes to ensure stable support.
Corrosion Resistance: Liquid argon has low temperature and corrosive properties. The support material should have excellent corrosion resistance to prevent corrosion and damage. Common support materials include stainless steel, aluminum alloy, etc.
Insulation: Liquid argon storage tanks typically require thermal insulation. The supports should possess certain insulation properties to reduce heat transfer and the evaporation of liquid argon. The design of the supports should consider the installation and protection of the insulation layer.
Installation and Maintenance: The bracket should feature ease of installation and maintenance, facilitating the installation and daily maintenance of the storage tank.
When selecting the supports for liquid argon tanks, it is advisable to consult engineers or suppliers. Choose the appropriate supports based on the specific tank requirements and operating environment. Additionally, adhere to relevant design specifications and safety standards to ensure the quality and reliability of the supports.
Our company attaches great importance to technological innovation and R&D design, boasting one city-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. Equipped with over 600 units of various equipment including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more, our R&D efforts on key products such as temperature and pressure vessel welding, biomass boiler emissions reduction, and waste heat recovery have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology Science and Technology Innovation Projects, Shandong Provincial Key Projects, and Heze City Innovation and Excellence Projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement identification, our technology level has reached international standards in the field of deep cryogenic vessel manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance!