Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological 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, cryogenic containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, including 247 engineering and technical personnel and 82 middle-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 nitrogen storage tanks feature the following characteristics during the construction process:
Low-Temperature Construction: The construction of liquid nitrogen tanks must be carried out in low-temperature conditions due to the low boiling point of liquid nitrogen, approximately -196 degrees Celsius. Construction personnel must take appropriate protective measures, such as wearing thermal protective clothing and gloves, to protect themselves from low-temperature injuries.
Welding Technology: Extensive welding is required during the manufacturing process of liquid nitrogen tanks, including the joining of tank walls, bottom plates, top plates, and seams. Welding technology is crucial for the quality and safety of the tanks, necessitating the use of appropriate welding methods and materials to ensure the strength and sealing integrity of the welds.
Insulation Layer Construction: Liquid nitrogen tanks must have excellent insulation properties to minimize heat conduction and retain低温 conditions. The construction of the insulation layer requires materials such as polyester foam and glass wool, ensuring the thickness and quality of the insulation layer.
Proper installation steps for a liquid nitrogen tank are as follows:
Site Preparation: Select a suitable site for tank installation, ensuring it is level, sturdy, and has adequate load-bearing capacity. The site should be kept away from flammable, explosive materials, and other hazardous sources.
Foundation Construction: Construction of the foundation based on the tank's dimensions and weight, including excavation of the foundation pit and pouring concrete. The design and construction of the foundation must comply with relevant standards and specifications.
Tank Installation: Transport the tank to the site and install it vertically. Appropriate lifting equipment and safety measures must be used during installation to ensure stability and safety of the tank.
Pipe connections: Connect the storage tank to the relevant pipeline system as required, including intake pipes, exhaust pipes, and liquid supply pipes, etc. Sealing and testing must be carried out during the connection process to ensure the safety of the pipes.

Low-temperature liquid storage tanks are equipment designed for storing low-temperature liquids, commonly used for liquid oxygen, liquid nitrogen, liquid argon, and other low-temperature liquids. These liquids are in a gaseous state at room temperature but are cooled to a liquid state at low temperatures for easier storage and use. These tanks are typically made of high-strength materials like stainless steel or aluminum alloys to withstand low temperatures and high pressures. They usually have an insulating layer to minimize evaporation and maintain the low-temperature state. Applications of low-temperature liquid storage tanks include but are not limited to: They are widely used in rocket fuel and propulsion systems, such as liquid oxygen, liquid nitrogen, and liquid hydrogen storage tanks. They store and supply low-temperature liquids as fuel and oxidizers to propel rockets and maintain their operation. Industrial Production: Low-temperature liquid storage tanks are used in industrial production to store and supply liquids like liquid oxygen, nitrogen, and argon. These liquids serve as coolants, raw materials for gas separation, and reactants in chemical reactions. Medical Applications: These tanks are used in the medical field 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 cryogenic media. They are used for cooling laboratory equipment, material research, superconductivity, and low-temperature physics. In summary, low-temperature liquid storage tanks are widely applied in aerospace, industrial production, and laboratory research, storing and supplying low-temperature liquids to meet the needs of various fields.

The filling process for liquid nitrogen tanks typically includes the following steps:
Preparation: Ensure the storage tank and filling equipment are in good condition, free from damage or leaks. Check that the insulation layer of the tank is intact and undamaged.
Safety Inspection: Check the safety conditions of the storage tank and its surrounding environment. Ensure there are no flammable materials or other hazardous items around the tank.
Connect equipment: Link the filling equipment to the storage tank. Ensure the connection is securely fastened and leak-free.
Prepare Liquid Nitrogen: Prepare liquid nitrogen supply, ensuring the quality and purity meet the requirements.
Open Valve: Follow the operation instructions of the filling equipment to gradually open the corresponding valves, allowing liquid nitrogen to flow from the supply source into the storage tank.
Regulate Flow: Adjust the flow control valve of the filling equipment as needed to control the inflow rate of liquid nitrogen. Ensure a moderate flow rate to avoid being too fast or too slow.
Monitor Liquid Level: Real-time monitoring of the liquid nitrogen level in the storage tank through a liquid level gauge or other level monitoring devices. Ensure the level is maintained within a safe range.
Stop Filling: Close the valve of the filling equipment when liquid nitrogen fills the tank or reaches the required level, halting the inflow of liquid nitrogen.
Disengage Connection: Disconnect the filling equipment from the storage tank and ensure there are no leaks at the connection point.
Safety Inspection: Conduct a thorough recheck of the tank and its surrounding environment to ensure there are no leaks or other safety hazards.
Please note that the process described is for general reference only; the actual filling process may vary depending on the specific type of storage tank and filling equipment. When conducting filling operations for liquid nitrogen tanks, please adhere to the relevant operational specifications and safety requirements, and ensure that the operators have received the necessary safety training and skills.

A 50-cubic-meter liquid oxygen tank refers to a storage tank with a capacity of 50 cubic meters. Liquid oxygen tanks are commonly used for storing and supplying liquid oxygen, for applications such as laboratory research, etc.
Key features and configurations of a 50 cubic meter liquid oxygen storage tank may include the following aspects:
Volume: The 50 cubic meter liquid oxygen tank can store a large quantity of liquid oxygen.
Structure: Liquid oxygen tanks are typically designed with double or multi-layered construction, filled with insulating material in between to minimize heat transfer and evaporation of the liquid oxygen. The tank material is usually stainless steel or aluminum alloy, offering excellent corrosion and low-temperature resistance.
Insulation Layer: The insulation layer of liquid oxygen storage tanks typically employs multi-layered insulation materials, such as polyethylene foam, glass fiber, and vacuum layers, to reduce heat transfer and evaporation of liquid oxygen.
Temperature Control System: Liquid oxygen tanks are typically equipped with a temperature control system to regulate the tank's temperature, maintaining the low-temperature state of the liquid oxygen.
Safety Equipment: Liquid oxygen tanks are typically equipped with safety devices such as pressure sensors, temperature sensors, and safety valves to ensure safe operation of the tank.
It's crucial to strictly adhere to the relevant safety regulations and operational guidelines when using liquid oxygen tanks to ensure their safe operation and use. Liquid oxygen is highly flammable, so fire prevention measures must be taken when using liquid oxygen tanks, and it's essential to ensure there are no ignition sources nearby.
Shandong Zhongjie Special Equipment, welcome customers to our factory for business discussions.