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 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 U.S. ASME/U2 certification.
Liquid oxygen storage tanks have the following characteristics:
High Purity: The liquid oxygen tanks store high purity liquid oxygen, typically achieving a purity of over 99.5%. This makes the liquid oxygen tanks essential in applications requiring high purity oxygen, such as medical, industrial, and research fields.
Low Temperature: As the boiling point of liquid oxygen is -183°C, liquid oxygen storage tanks must have excellent insulation properties to maintain the low temperature state of the liquid oxygen. Tanks are typically designed with double or multi-layer structures, filled with insulating material in between to minimize heat transfer and evaporation of the liquid oxygen.
High Pressure: Liquid oxygen tanks typically need to withstand high pressure to maintain their liquid state. The design and material selection of the tank must consider the pressure requirements of liquid oxygen to ensure the tank's safety and reliability.
Flammability: Liquid oxygen is highly flammable and supports combustion. Consequently, during the design and operation of liquid oxygen storage tanks, fire prevention measures must be implemented to ensure there are no ignition sources nearby, and appropriate fire extinguishing equipment is provided.
High Density: Liquid oxygen has a higher density, allowing liquid oxygen tanks to store more oxygen than gas oxygen tanks. This gives liquid oxygen tanks an advantage in applications requiring large amounts of oxygen supply, such as in the field.
Corrosiveness: Liquid oxygen has certain properties of腐蚀性.

Liquid Argon Storage Tanks are equipment used for storing and transporting liquid argon, featuring the following characteristics:
Low Temperature Retention: The liquid argon tank is equipped with special insulation materials and structural design, effectively maintaining the low temperature state of liquid argon. The tank is internally lined with insulation to reduce 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 seals, etc., are designed and manufactured with precision, 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, offering excellent corrosion resistance to withstand the corrosion and oxidation of 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, ensuring the tank operates within a safe range.
Reliability and Stability: The liquid argon storage tank has undergone strict design, manufacturing, and testing, ensuring excellent reliability and stability. The tank is capable of long-term stable storage and transportation of liquid argon, guaranteeing 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 that are easy to use. The maintenance work mainly includes regular inspections, cleaning, and repairs, which can extend the service life of the tank.
The performance features of liquid argon tanks make them an essential storage and transportation device for liquid argon, widely used in scientific research, industry, and other fields. When using liquid argon tanks, it is necessary to strictly comply with the relevant operational specifications and safety requirements to ensure safe use.

Low-temperature liquid storage tanks are equipment used for storing low-temperature liquids, commonly employed for the storage of liquid oxygen, liquid nitrogen, liquid argon, and other low-temperature liquids. These substances are in a gaseous state at room temperature but are cooled to a liquid state at low temperatures for more efficient storage and use. The tanks are typically made from high-strength materials such as stainless steel or aluminum alloy to withstand low temperatures and high pressures. They usually have an insulating layer inside to minimize evaporation and maintain the low-temperature state. The applications of low-temperature liquid storage tanks include but are not limited to the following areas: They are widely used in rocket and spacecraft fuel and propulsion systems, such as liquid oxygen, liquid nitrogen, and liquid hydrogen storage tanks. They are utilized for storing and supplying low-temperature liquids as fuel and oxidizers to propel rockets and spacecraft. Industrial Production: Low-temperature liquid storage tanks are used in industrial production for storing and supplying low-temperature liquids like liquid oxygen, liquid nitrogen, and liquid argon. These liquids serve as coolants, raw materials for gas separation, and reactants in chemical reactions, among other uses. Medical Applications: They are used in medical fields to store and supply liquid oxygen for oxygen therapy, inhalation therapy, and operating rooms. Laboratory Research: In scientific research and laboratories, low-temperature liquid storage tanks provide low-temperature liquids as coolants and refrigerants. They are used for cooling laboratory equipment, material research, superconductivity, and low-temperature physics, among other applications. In summary, low-temperature liquid storage tanks are extensively used in rocketry, industrial production, and laboratory research to store and supply low-temperature liquids to meet the needs of various fields.

During the operation of low-temperature storage tanks, it is indeed necessary to avoid the occurrence of wrinkling. Wrinkling refers to the phenomenon of creases or deformation in the tank walls, which may lead to a decrease in the structural strength of the tank and could even cause leaks or ruptures.
Here are some precautions to avoid tank rolling in low-temperature storage:
Tank Design: Select an appropriate tank design that can withstand the pressure and weight of low-temperature liquids. The wall thickness and supporting structures of the tank should comply with relevant standards and regulations.
Material Selection: Choose materials suitable for low-temperature environments, with sufficient strength and low-temperature resistance. Common materials include low-temperature steel, stainless steel, etc.
Insulation Layer for Storage Tanks: The design and construction of the insulation layer must meet the requirements to ensure effective reduction of heat conduction and temperature variations. The material and thickness of the insulation layer should be selected based on the specific conditions.
Tank Operation: During the loading and unloading of liquids in the tank, it is essential to avoid rapid or excessive fluid flow to minimize impact and stress concentration on the tank walls.
Tank Maintenance: Regularly inspect and maintain the structure and insulation of the tank to ensure it remains undamaged. Any abnormalities or damage should be repaired or replaced promptly.
Temperature Control: During the operation of low-temperature liquid storage tanks, strict control over the temperature difference between the inside and outside of the tank is necessary to avoid excessive temperature changes and thermal stress.
In summary, preventing deformation in low-temperature storage tanks hinges on proper design, material selection, the installation and maintenance of insulation, and stringent control of temperature variations. Regular inspections and maintenance are crucial measures to ensure the safe operation of the tanks.
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