Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as a qualification for electromechanical equipment installation contracting. 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 the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the ASME/U2 certification.
To extend the service life of low-temperature liquid storage tanks, the following measures can be taken:
Regular Inspections and Maintenance: Conduct regular visual inspections of the storage tank, including the shell, welds, valves, and connections. Check for any abnormalities such as cracks, corrosion, or deformation, and promptly repair or replace damaged parts.
Maintain the insulation layer: Insulation is crucial for the thermal preservation of low-temperature liquid storage tanks. Regularly inspect the integrity and insulating performance of the insulation layer, repair or replace any damaged insulation material to ensure the tank's insulating effectiveness.
Regulate temperature and pressure: The temperature and pressure of low-temperature liquid storage tanks should be maintained within a safe range. Avoid excessive or insufficient temperature and pressure that may damage the tank. Implement appropriate cooling or heating measures to ensure stable temperature and pressure of the liquid.
Corrosion Protection: The outer shell and internal structure of the storage tank should be protected against corrosion and oxidation. Regularly inspect and maintain the protective coating to ensure it remains intact.
Avoid excessive pressure and overfilling: Prevent the internal pressure of the tank from being too high or too low, as well as overfilling with liquid. Excessive pressure and overfilling can lead to structural rupture or damage to the tank.
Regular cleaning and waste removal: Regularly clean the interior of the tank to remove accumulated impurities and dirt. Regularly remove waste to prevent damage to the tank from impurities and sediments in the liquid.
Safety Operation and Training: Ensure operators are knowledgeable and skilled in the safe handling of cryogenic liquid storage tanks. Enhance safety training to boost operators' awareness and emergency response capabilities.
Manage records and documents: Establish comprehensive management records and documents, including the usage of storage tanks.

Liquid nitrogen tanks are equipment used for storing liquid nitrogen and are widely used in the following fields: Frozen Food and Refrigerated Logistics: Liquid nitrogen tanks are used in the frozen food and refrigerated logistics industry to freeze or refrigerate food and other perishable items, extending their shelf life and maintaining freshness. The low temperature of liquid nitrogen can quickly freeze food, preventing bacterial growth and spoilage. Biological Sample Storage: Liquid nitrogen tanks are extensively used in the field for freezing and preserving biological samples, cells, tissues, and more. The low temperature of liquid nitrogen effectively preserves the integrity and viability of biological materials, used in medical research, biomedical engineering, and transplantation fields. Laboratory Research: Liquid nitrogen tanks are used in scientific research and laboratories to provide liquid nitrogen as a coolant and freezing medium. The low temperature of liquid nitrogen can be used for cooling laboratory equipment, material research, superconducting electronics, and low-temperature physics. Metalworking and Welding: Liquid nitrogen tanks are used in metalworking and welding for cooling and controlling the temperature of metals. Liquid nitrogen can rapidly cool metals, improve their hardness and strength, and reduce deformation and stress. Gas Storage and Supply: Liquid nitrogen tanks are also used for storing and supplying nitrogen gas. Liquid nitrogen can be evaporated into gaseous nitrogen for applications such as gas shielded welding, gas fire suppression systems, gas analysis, and laboratory gas supply. In summary, liquid nitrogen tanks are widely applied in the fields of frozen food, laboratory research, metalworking, and gas supply, providing storage and supply functions for liquid nitrogen at application sites.

To prevent the dangers associated with liquid oxygen tanks, the following precautions can be taken:
Safety Operations and Management: Establish and enforce stringent safety operations and management systems, including proper use of storage tanks, operational procedures, and safety training. Ensure that operators possess the necessary safety awareness and skills, adhere to operational procedures, and minimize operational errors and the likelihood of accidents.
Regular Inspections and Maintenance: Conduct regular inspections and maintenance on liquid oxygen tanks, which includes visual inspections, pressure tests, and leak detection, among others. Identify and address tank issues promptly to ensure safety and reliability.
Safety devices and protective equipment: Tanks should be equipped with necessary safety devices, such as pressure relief valves, level alarms, etc., as well as protective equipment, such as fire walls, explosion-proof devices, etc. These devices and equipment can take timely measures in abnormal situations to ensure the safety of the tank.
Fire Prevention Measures: Liquid oxygen contains a high oxygen content and is prone to cause fires. Therefore, fire prevention measures such as firewalls and fire extinguishers should be set up around the storage tank to prevent the spread and expansion of fires.
Leakage Control and Emergency Response Plan: Establish a liquid oxygen tank leakage control and emergency response plan, including leakage control measures, emergency response procedures, evacuation plans, etc. In the event of a leakage incident, the plan enables rapid action to control the leakage and ensure personnel safety.
Training and Awareness Enhancement: Conduct regular safety training for personnel using liquid oxygen tanks to enhance their safety awareness and emergency response capabilities. Strengthen safety

Liquid Argon Storage Tanks are equipment used for storing and transporting liquid argon, featuring the following characteristics:
Low-temperature retention performance: The liquid argon tank utilizes special insulation materials and structural design to effectively maintain the low-temperature state of liquid argon. The tank is internally equipped with an insulation layer, reducing heat conduction and loss, ensuring long-term storage of liquid argon.
High-sealing performance: The liquid argon storage tank boasts excellent sealing properties, effectively preventing any leakage or evaporation of liquid argon. The tank's valves, connectors, and sealing components are precisely designed and manufactured, ensuring reliable sealing performance.
High strength and corrosion resistance: The liquid argon tank is made of high-strength materials, capable of withstanding the high pressure and low temperature of liquid argon. Both the internal and external surfaces of the tank are specially treated for excellent corrosion resistance, able to withstand corrosion and oxidation from liquid argon.
Safety Features: The liquid argon tank is equipped with multiple safety protection measures, including safety valves, pressure sensors, and level monitoring devices. These devices can monitor and control the tank's pressure, temperature, and level to ensure the tank operates within a safe range.
Reliability and Stability: The liquid argon storage tank has undergone rigorous design, manufacturing, and testing, offering excellent reliability and stability. The tank is capable of long-term stable storage and transportation of liquid argon, ensuring that the quality and performance of the liquid argon remain unaffected.
Easy to Operate and Maintain: The liquid argon storage tank is relatively simple to operate and maintain, equipped with valves and fittings for easy operation. The maintenance tasks mainly include regular inspections, cleaning, and repairs, which can extend the lifespan of the tank.
The performance characteristics of liquid argon tanks make them essential for the storage and transportation of liquid argon, widely used in scientific research, industry, and other fields. When using liquid argon tanks, it is crucial to strictly adhere to the relevant operational specifications and safety requirements to ensure safe usage.
Zhongjie Special Equipment adheres to the great vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We commit to society with high-quality, cost-effective products and services!