Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, A2-grade pressure vessel manufacturing license, A2-grade pressure vessel design license, B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation license, as well as equipment and mechanical installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council member of the Shandong Equipment Manufacturing Association. The company has also passed certifications for ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the U.S. ASME/U2 certification.
A liquid oxygen station is a facility used for storing and supplying liquid oxygen, and the liquid oxygen storage tank is an essential component of the liquid oxygen station. The liquid oxygen storage tank has several important functions and characteristics:
Store Liquid Oxygen: Liquid oxygen tanks are primarily used for storing liquid oxygen, cooling gaseous oxygen below its critical temperature to convert it into a liquid form. The storage density of liquid oxygen is high, allowing for the storage of large amounts of oxygen in a relatively small space.
Maintain Low Temperature: Liquid oxygen tanks are typically double-walled, with a vacuum layer between the inner and outer walls to reduce heat transfer and maintain low temperatures. This helps keep the liquid oxygen at a低温 state, preventing premature vaporization.
Safety Design: Liquid oxygen tanks must be designed and manufactured with safety in mind. They are typically made from high-strength materials such as stainless steel or aluminum alloy to withstand high pressure and low-temperature conditions. Additionally, liquid oxygen tanks are equipped with safety valves, pressure sensors, and temperature sensors to ensure that the internal pressure and temperature of the tank remain within safe limits.
Supply System Connection: Liquid oxygen tanks are typically connected to the supply system to transport liquid oxygen to the required locations. The supply system includes liquid oxygen pumps, pipelines, and valves, etc., which are used to extract liquid oxygen from the tank and deliver it to the user's end.
Liquid oxygen tanks play a crucial role in storing and maintaining liquid oxygen in liquid oxygen stations. Their design and operation must strictly adhere to relevant safety regulations and procedures to ensure the safety and reliability of the storage and supply process.

Protective tips for liquid nitrogen tanks include the following:
Wear protective gear: When operating liquid nitrogen tanks, it is mandatory to wear appropriate protective gear, including gloves, protective suits, and non-slip shoes. This equipment protects the skin from the low temperatures of liquid nitrogen and other hazards.
Avoid direct contact: Liquid nitrogen is extremely cold and can cause frostbite. Therefore, it is essential to avoid direct contact with liquid nitrogen, especially with the skin. Use tools or equipment for handling to prevent direct hand contact with liquid nitrogen.
Note Ventilation: In the operational area of the liquid nitrogen tank, ensure adequate ventilation to expel gases produced by the evaporation of liquid nitrogen. Maintain air circulation to avoid high oxygen concentrations and reduce the risk of fire and explosion.
Prevent Leaks: Regularly inspect the liquid nitrogen storage tank for leaks and equip with leak detectors and alarm systems. In case of a leak, take immediate action to control and repair it. Avoid hazards to personnel and the environment caused by the leakage of liquid nitrogen.
Fire Prevention Measures: Nitrogen liquid has a low boiling and freezing point, which is prone to cause fires. To prevent and contain fires, firewalls and fire-retardant coatings should be installed around nitrogen liquid storage tanks.
Static protection: The accumulation of static electricity in liquid nitrogen tanks may cause sparks, increasing the risk of fire. Measures such as using static-conductive materials and anti-static equipment should be taken to reduce the accumulation and release of static electricity.
Regular Inspections and Maintenance: Conduct regular checks on the condition of liquid nitrogen tanks and related equipment, including valves, pipelines, pressure gauges, etc. Ensure that the equipment is in perfect condition, and promptly repair or replace any damaged parts.
Waste Gas Treatment: Liquid nitrogen tanks produce waste gas during operation, and appropriate waste gas treatment measures must be implemented.

When selecting the base for a liquid argon tank, consider the following factors:
Load Capacity: The support must be able to bear 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 sufficient stability to prevent the tank from tilting or swaying during use. 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 generally require thermal insulation. The supports should have certain insulation properties to reduce heat transfer and evaporation of the liquid argon. The design of the supports should consider the installation and protection of the insulation layer.
Installation and Maintenance: The support should feature ease of installation and maintenance for convenient storage tank setup and routine maintenance tasks.
When selecting the support bases for liquid argon tanks, it is recommended to consult engineers or suppliers. Choose the appropriate bases according to the specific tank requirements and usage environment. At the same time, adhere to relevant design specifications and safety standards to ensure the quality and reliability of the bases.

The manufacturing materials for liquid oxygen tanks typically need to have excellent low-temperature resistance and corrosion resistance. The following are common materials used in the production of liquid oxygen tanks:
Stainless Steel: A commonly used material for making liquid oxygen storage tanks, stainless steel boasts excellent corrosion resistance and mechanical strength. Common stainless steel grades include 304 and 316 stainless steel.
Aluminum Alloy: Aluminum alloys are also commonly used in the production of liquid oxygen tanks, offering low density and excellent corrosion resistance. Commonly used aluminum alloy materials include 5083 and 6061 alloys.
Fiberglass Reinforced Plastic (FRP): FRP is a composite material made up of glass fibers and resin. It boasts excellent corrosion resistance and mechanical strength, making it suitable for liquid oxygen storage tanks in some special environments.
Carbon Steel: Carbon steel is a common material for making tanks, known for its high strength and corrosion resistance. However, it is prone to oxidation in liquid oxygen environments, necessitating anti-corrosion measures.
It's important to note that the choice of materials for liquid oxygen storage tanks should be determined based on specific application requirements, operating environment, and safety standards. When selecting materials, consider the properties of liquid oxygen and the design requirements of the tank to ensure safety and reliability. Additionally, manufacturers and suppliers often provide material selection advice and technical support.
Our company attaches great importance to technological innovation and R&D design. We have 1 municipal-level enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 types of 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. The key products and technologies we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, 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 innovative and excellent projects. We have accumulated a total of 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement evaluation, the technical level has reached the international standard in the field of deep cryogenic container manufacturing. Choose ZJ Special Equipment, and let's create brilliance together!