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 tanks, oxygen/nitrogen/argon tanks, CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment sets; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Oxygen storage tanks and liquid oxygen storage tanks are equipment used for storing oxygen, but they have some distinctions: Storage Form: Oxygen storage tanks are typically used for storing gaseous oxygen, whereas liquid oxygen storage tanks are used for storing liquid oxygen. Oxygen is in a gaseous state at room temperature but can be cooled to a liquid state at low temperatures for more efficient storage and use. Storage Pressure: Oxygen storage tanks usually store high-pressure oxygen, with pressures around 200-300 bar. Liquid oxygen storage tanks store liquid oxygen at lower pressures, generally around 2-5 bar. Storage Capacity: Oxygen storage tanks usually have smaller capacities, suitable for personal or small-scale use. Liquid oxygen storage tanks have larger capacities, suitable for industrial or large-scale use. Storage Method: Oxygen storage tanks store oxygen in a gaseous form, through compressed gas storage. Liquid oxygen storage tanks store oxygen in a liquid form, by cooling it to temperatures below its boiling point to convert it into a liquid. Safety Requirements: Due to the high oxidizing nature of liquid oxygen, liquid oxygen storage tanks require stricter safety requirements during design and use. Liquid oxygen storage tanks typically need to have good thermal insulation, leak control, and fire prevention measures to ensure safe operation. It is important to note that the specific design and specifications of oxygen storage tanks and liquid oxygen storage tanks may vary depending on different regions, applications, and locations. When using these tanks, it is necessary to follow applicable regulations, standards, and safety guidelines, and to cooperate with local regulatory authorities and personnel to ensure the safety and reliability of the tanks.

To safely utilize liquid oxygen tanks, attention should be paid to the following aspects:
Training: Operators of liquid oxygen tanks must receive training on the properties of liquid oxygen, safe operating procedures, and emergency response measures. Only trained personnel are authorized to operate liquid oxygen tanks.
Safety Operating Procedures: Establish and adhere to the safety operating procedures for liquid oxygen tanks, including proper operational procedures, protective measures, and emergency response plans. Ensure operators follow the procedures to minimize accident risks.
Equipment Inspection and Maintenance: Regularly inspect the condition of liquid oxygen tanks and related equipment, including valves, pipes, pressure gauges, etc. Ensure that the equipment is in perfect condition and promptly repair or replace any damaged parts.
Leak Control: Equipped with leak detection and alarm systems to promptly identify and control leaks in liquid oxygen storage tanks. Upon detection of a leak, immediate action should be taken to contain the source of the leak and carry out repairs.
Fire Prevention Measures: Liquid oxygen contains a high oxygen content, which is prone to causing fires. Measures such as setting up firewalls around liquid oxygen storage tanks and using fire-retardant coatings are taken to prevent fires from occurring and spreading.
Electrostatic Protection: The accumulation of static electricity in liquid oxygen tanks may cause sparks, increasing the risk of fire. Measures such as using electrostatic conductive materials and anti-static equipment should be taken to reduce the accumulation and release of static electricity.
Ventilation Requirements: Ensure adequate ventilation within the enclosed space of the liquid oxygen storage tank to expel gases produced by the evaporation of liquid oxygen. Avoid excessive oxygen concentration to minimize

Liquid Argon Storage Tanks are used for storing and transporting liquid argon, with the following scope and characteristics:
Application Range:
Industrial Applications: Liquid Argon Storage Tanks are widely used in various industrial sectors, including metal processing, electronic manufacturing, semiconductor production, and more.
Application: Liquid argon tanks are used in the field for cryogenic storage of biological samples, cells, tissues, and vaccines.
Laboratory Applications: Liquid argon storage tanks are used in scientific research laboratories for low-temperature experiments, cryogenic preservation, and sample processing, etc.
Features:
Low-temperature performance: Since the boiling point of liquid argon is -185.7°C, liquid argon storage tanks must have excellent low-temperature insulation properties to maintain the low temperature of the liquid argon.
High sealing: Liquid argon storage tanks must have good sealing properties to prevent evaporation loss of liquid argon and the entry of external air.
Safety: Liquid argon is a flammable and explosive substance, hence liquid argon storage tanks must be equipped with safety valves, leak detectors, and other safety devices to ensure safe operation.
High Capacity: The liquid argon storage tank capacities range from a few liters to thousands of liters, allowing for selection of the appropriate size based on requirements.
Cautionary Notes:
Protective Gear: When operating liquid argon tanks, it is mandatory to wear appropriate protective gear, including gloves, protective clothing, and non-slip shoes, to safeguard against the low temperatures of liquid argon and other hazards.
Ventilation Requirements: At

Proper installation of the safety valve on liquid oxygen storage tanks is a crucial step to ensure safe operation. Here are the installation steps for the safety valve on liquid oxygen storage tanks:
Select the appropriate safety valve: Choose a safety valve that meets the design pressure and flow requirements of the liquid oxygen storage tank. Ensure the rated pressure and flow of the safety valve align with the tank's specifications and comply with relevant safety standards and regulations.
Valve Installation Location: Select an appropriate location for installing the safety valve. Typically, the safety valve should be mounted on the top or side of the liquid oxygen tank to allow for timely pressure release in the event of overpressure.
Ready for installation interfaces: Prepare the corresponding interfaces based on the connection method of the safety valve. This may include welding interfaces, threaded interfaces, or flange interfaces, etc. Ensure the tightness of the interfaces and secure connections.
Install the safety valve: Mount the safety valve onto the prepared interface. Follow the installation instructions for the safety valve to ensure proper connection and tightening.
Adjustment and Testing: After installation, adjust and test according to the requirements of the safety valve. Ensure that the opening and closing pressures of the safety valve meet the design specifications, and conduct a leak test to ensure its sealing.
Identification and Record: Label the safety valve with relevant information such as rated pressure, flow rate, and installation date. Additionally, record the installation details and test results of the safety valve for future reference and maintenance.
When installing the liquid oxygen storage tank safety valve, it is imperative to adhere to the relevant safety regulations and operation guidelines. If you lack the necessary experience and knowledge, it is recommended to seek assistance and guidance from a professional to ensure the correct installation and reliable operation of the safety valve.
Our company attaches great importance to technological innovation and R&D design, boasting one municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. Equipped with over 600 various instruments and 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 developed key products such as welding for temperature and pressure vessels, biomass boiler emission reduction, and waste heat utilization have successively entered multiple Shandong Provincial Department of Industry and Information Technology innovation projects, key provincial projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement identification, the technical level has reached an international standard in the field of deep cryogenic container manufacturing. Choose ZJ Special Equipment, and let's create brilliance together!