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, GC2/Class pressure pipeline installation licenses, as well as an electromechanical equipment installation contracting qualification. 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 the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
Possible reasons for increased liquid nitrogen loss in storage tanks may include:
Evaporation Loss: Liquid nitrogen is a cryogenic liquid with a boiling point of -196 degrees Celsius. Even under good insulation conditions, evaporation of liquid nitrogen occurs. Therefore, the main cause of liquid loss in liquid nitrogen tanks is evaporation. If the insulation layer of the tank is damaged or the insulation performance is poor, evaporation loss will increase.
Leakage: Leaks in liquid nitrogen storage tanks can also result in increased liquid loss. Leaks may occur at the tank's interfaces, valves, pipes, and other areas. Leaks can be caused by equipment aging, material fatigue, improper operation, and other reasons.
Improper operation: Incorrect handling and maintenance may also lead to increased liquid nitrogen loss in storage tanks. For example, frequently opening the tank lid, leaving the lid open for extended periods, and not repairing leaks in a timely manner.
Environmental Factors: Environmental factors can also affect the liquid nitrogen tank's liquid loss. For instance, high temperatures can reduce the tank's insulating performance, leading to increased evaporation loss.
To minimize liquid nitrogen tank losses, the following measures can be taken:
Ensure the tank's insulation is intact and perform regular inspections and maintenance.
Regularly inspect the tank's interfaces, valves, pipelines, etc., to ensure good sealing performance and prevent leaks.
Strictly control the frequency and duration of tank openings to prevent unnecessary liquid evaporation.
Avoid using liquid nitrogen tanks in high-temperature environments, or take measures to maintain a low temperature around the tank.
It should be noted that liquid nitrogen tank liquid loss is inevitable, but with reasonable operation and maintenance, it can be reduced to a minimum.

The safe distance between liquid oxygen storage tanks and structures is typically dictated by relevant safety standards and regulations to ensure a safe buffer and fire separation between the tank and the structure. The following are general reference values for the safe spacing between liquid oxygen storage tanks and structures:
Horizontal spacing: The horizontal spacing between liquid oxygen tanks and buildings is generally required to maintain a certain distance to prevent danger to the buildings in case of tank leaks or accidents. The specific spacing distance should be determined based on factors such as the tank's capacity, pressure, and the nature of the buildings, with a recommended safety margin.
Vertical spacing: The vertical distance between the liquid oxygen storage tank and the building must also comply with relevant safety requirements. This is to prevent any danger to the building in the event of a tank leak or accident. Specific spacing requirements will be determined based on factors such as the tank's capacity, pressure, and the height of the building, with a general recommendation to maintain a safe distance.
Fireproof Distance: Liquid oxygen has a high oxygen content and flammability. In the event of a leak or accident, it may cause a fire. Therefore, a certain fireproof distance must be maintained between the liquid oxygen storage tank and the building to ensure that the fire does not spread or pose a danger to the building. Specific fireproof distance requirements

During the process of constructing low-temperature liquid oxygen storage tanks with central oxygen supply, special attention should be paid to the following aspects:
Safe Operation: Adherence to safety operation procedures and standards is mandatory during the storage tank assembly process. Operators must be trained, familiar with the properties and safety requirements of liquid oxygen, and knowledgeable about the equipment and operational procedures to ensure safe operations.
Fire Prevention Measures: Liquid oxygen contains a high concentration of oxygen, which is prone to cause fires. During the installation process, necessary fire prevention measures should be taken, such as setting up firewalls, using fire-resistant coatings, and prohibiting open flames, to prevent the occurrence and spread of fires.
Leak Control: During the installation process, attention must be paid to leak control. Oxygen leakage can lead to increased oxygen concentration, enhancing the risks of fire and explosion. Leak detectors and alarm systems should be equipped to promptly detect and control leaks, and to implement corresponding emergency measures.
Oxygen Concentration Monitoring: During the installation process, regular monitoring of the oxygen concentration around the liquid oxygen storage tank should be conducted. High oxygen concentrations can exacerbate the combustion of flammable materials, increasing the risk of fire and explosion. Take timely measures to ensure the oxygen concentration remains within safe limits.
Grounding and Static Electricity Protection: During the liquid oxygen plant process, ensure proper grounding of the storage tank and related equipment to minimize the accumulation and release of static electricity. Use static-conductive materials and anti-static equipment to reduce the dangers caused by static electricity.
Regular Inspections and Maintenance: After the installation is complete, regular inspections and maintenance should be conducted on the liquid oxygen tank. This includes visual inspections, pressure tests, and leak detection to ensure the tank's safety and stability.
Note that during the installation of central oxygen supply low-temperature liquid oxygen storage tank units, operations should be carried out by experienced personnel, adhering to relevant safety operation procedures and standards. Close attention should be paid to safety risks throughout the installation process, and timely measures should be taken to ensure the safety and stability of the installation.

Zhongjie Special Equipment Co., Ltd. is a company specializing in the manufacturing of low-temperature liquid storage tanks. They offer a range of tanks in various specifications and capacities, including liquid nitrogen, liquid oxygen, and liquid argon storage tanks.
The Zhongjie special-fitted low-temperature liquid storage tank is made with high-quality materials and advanced manufacturing techniques, ensuring the tank's strength and seal integrity. The interior is equipped with special insulation materials and structural design, effectively reducing liquid evaporation loss.
The Zhongjie special-purpose low-temperature liquid storage tank features the following characteristics:
High Safety: Tanks are made of materials with excellent pressure resistance and sealing properties, capable of safely storing low-temperature liquids.
Low evaporation loss: Insulation materials and structural design used inside the tank effectively reduce liquid evaporation loss, enhancing the tank's economic efficiency.
A variety of specifications and capacities available: Zhongjie offers a range of low-temperature liquid storage tanks in various specifications and capacities to meet diverse customer needs.
Customized Design: Based on our clients' specific requirements, ZheJie can offer tailored design and manufacturing services to cater to various application scenarios.
Volume Manufacturing Process: Zhongjie is equipped with advanced manufacturing equipment and a skilled technical team, ensuring the quality and performance of the storage tanks.
In summary, ZJET's low-temperature liquid storage tanks offer high safety, low evaporation loss, and a variety of specifications, making them suitable for storage and transportation needs of low-temperature liquids.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for business talks.