Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City, with a registered capital of 50 million yuan and total assets of 500 million yuan. The company has 7 business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, including 247 engineers and technicians and 82 intermediate-level technical personnel. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Liquid oxygen tanks are used for storing and supplying liquid oxygen as fuel and an oxidizer, playing a crucial role in launch propulsion systems and more. Industrial Production: Liquid oxygen is used as an oxidizer in industrial production for processes such as combustion, oxidation, and oxygen supply. Liquid oxygen tanks are used to store and supply liquid oxygen to meet the needs of industrial applications like metal cutting, welding, and chemical reactions. Equipment: Liquid oxygen tanks are used to supply oxygen for applications such as oxygen therapy, oxygen inhalation, and operating rooms. These tanks provide high-purity oxygen while maintaining a low temperature to meet the equipment's oxygen requirements. Laboratory Research: Liquid oxygen tanks are used in scientific research and laboratories to provide liquid oxygen as experimental materials and reagents. The low temperature and high purity of liquid oxygen make it widely applicable in laboratories for fields such as materials science, chemical reactions, and biomedical research. In summary, liquid oxygen tanks are crucial in various fields including industrial production, equipment, and laboratory research, providing storage and supply functions for liquid oxygen at the application sites.

Liquid Argon Storage Tanks are designed specifically for storing liquid argon, featuring the following parameters, functions, and characteristics:
Parameters:
Tank Capacity: The capacity of liquid argon tanks can be customized according to requirements, generally available in various sizes such as 500L, 1000L, 2000L, etc.
Working Pressure: The working pressure of liquid argon tanks is typically atmospheric or slightly above atmospheric pressure.
Storage Temperature: The storage temperature for liquid argon tanks is typically -196 degrees Celsius, which is the boiling point of argon, maintaining its liquid state.
Features:
Store Liquid Argon: Liquid argon tanks are primarily used for storing liquid argon, maintaining its liquid state at low temperatures for supply and use.
Insulation: The liquid argon storage tank utilizes advanced insulation materials and structural design to minimize heat conduction and retention, maintaining the low temperature state of liquid argon.
Safety Controls: The liquid argon storage tank is equipped with safety devices such as pressure relief valves and level alarms to ensure safe operation and use.
Features:
High Purity Supply: Liquid argon tanks offer high purity liquid argon supply to meet the requirements of applications such as cryogenic storage, gas shielded welding, and semiconductor manufacturing.
Long-term Storage: Liquid argon tanks can store liquid argon for extended periods, thereby extending their service life. By controlling the temperature inside the tank and the performance of the insulation layer, the evaporation and oxidation of the liquid argon are slowed down.
Wide Range of Applications: Liquid Argon Storage Tanks are extensively used in various fields such as industry, scientific research, including freezing and semiconductor manufacturing, etc.
Environmental Protection and Energy Conservation: Liquid argon storage tanks enable effective storage and utilization of liquid argon, reducing energy waste and environmental pollution.
In summary, liquid argon tanks are designed for storing liquid argon, thermal insulation, and safety.

Prior to cooling the liquid oxygen tank, the following prerequisites must be met:
Clean Tanks: Ensure the interior of the tank is clean, free of impurities and contaminants. The tank should be properly cleaned and flushed to maintain its internal cleanliness.
Drainage and Exhaust: Empty the gas from the storage tank and expel it through the exhaust system to reduce the gas content within the tank. This helps minimize the interference of the gas on the cooling process.
Safety Precautions: Prior to cooling the liquid oxygen tank, necessary safety measures must be taken. Liquid oxygen is highly flammable and has low-temperature characteristics. Operators should wear appropriate protective clothing, gloves, and other personal protective equipment to ensure safe operation.
Temperature Control: During the cooling process of the liquid oxygen tank, the temperature of the tank must be controlled. Typically, low-temperature media such as liquid nitrogen are used to cool the tank, ensuring that the temperature gradually decreases below the boiling point of liquid oxygen.
Insulation and Heat Retention: Liquid oxygen tanks typically use double or multi-layered construction, filled with insulating material in between to minimize heat transfer and evaporation of the liquid oxygen. Ensuring the integrity and excellent insulation of the insulating layer enhances the cooling efficiency of the tank.
Under the above preconditions met, cooling operations for the liquid oxygen tank can be performed. The cooling process must strictly adhere to relevant safety regulations and operational guidelines to ensure the safe operation and use of the tank.

The safety distance between liquid oxygen storage tanks and buildings is typically governed by relevant safety standards and regulations to ensure the safe distance and fire separation between the tank and the building. The following is a reference for the general safety distance between liquid oxygen storage tanks and buildings:
Horizontal spacing: The horizontal distance between the liquid oxygen storage tank and the building is typically required to maintain a certain distance to prevent any danger to the building in case of tank leakage or accidents. The specific spacing distance should be determined based on factors such as the tank's capacity, pressure, and the nature of the building, with a general recommendation to maintain a safe distance.
Vertical clearance: The vertical distance between the liquid oxygen tank and the structure must also meet the relevant safety requirements. This is to prevent the tank from causing danger to the structure in the event of a leak or accident. The specific clearance requirements will also be determined by factors such as the tank's capacity, pressure, and the height of the structure, with a general recommendation to maintain a certain safety distance.
Fireproof Separation: 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 separation is required 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 separation requirements:
Shandong Zhongjie Special Equipment, welcome customers to our factory for cooperation discussions.