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 a mechanical and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 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 American ASME/U2 certification.
Liquid Oxygen Low-Temperature Storage Tanks are primarily used for storing and supplying liquid oxygen, with their application methods varying based on specific needs and scenarios. Here are some common applications of liquid oxygen low-temperature storage tanks:
Applications: Liquid oxygen low-temperature storage tanks are widely used in the field for cryogenic preservation of biological samples, cells, tissues, and vaccines. Institutions such as biopharmaceutical research organizations and biobanks utilize these tanks to store and protect these biological materials.
Experimental Research: Liquid Oxygen Low-Temperature Storage Tanks are used to provide low-temperature environments in scientific research and laboratories, for freezing preservation and cryogenic experiments. These tanks play a crucial role in experimental research across various fields, including physics, chemistry, biology, and materials science.
Industrial Applications: Liquid Oxygen Low-Temperature Storage Tanks are used in the industrial field for providing low-temperature cooling in processes such as metal processing, welding, and heat treatment. These tanks can achieve the required hardness and toughness of metals during processing by maintaining low temperatures.
Food Industry: Liquid Oxygen Low-Temperature Storage Tanks are used in the food industry for freezing and refrigerating foods such as frozen meats, frozen fruits, and frozen seafood. The low temperature of liquid oxygen can quickly freeze foods, preserving their freshness and quality.
Liquid oxygen low-temperature storage tanks are used in the field for storing and supplying liquid oxygen as fuel. Liquid oxygen, as a high-energy fuel, is widely used in the propulsion systems of engines and devices.
During the operation of liquid oxygen low-temperature storage tanks, it is crucial to strictly adhere to relevant safety regulations and operational guidelines to ensure the safe operation and use of the tanks. Liquid oxygen is highly flammable, so fire prevention measures must be taken when using liquid oxygen low-temperature storage tanks, and it must be ensured that there are no ignition sources nearby.

The dimensions and structures of liquid oxygen tanks can vary according to specific requirements and applications. Below are common sizes and structures of liquid oxygen tanks:
Dimensions: The size of liquid oxygen tanks is typically determined by the storage or transport capacity of liquid oxygen. Common capacities range from a few thousand to several hundred thousand liters.
Structure: The structure of the liquid oxygen tank mainly includes the inner shell, outer shell, insulation layer, and supporting structure, etc.
Inner Shell: The inner shell of the liquid oxygen tank is the part designed to store liquid oxygen, commonly made of stainless steel or aluminum alloy materials, offering excellent corrosion resistance and sealing properties.
Shell: The shell of a liquid oxygen tank is the external structure that protects the inner lining, typically made of carbon steel or stainless steel, offering sufficient strength and corrosion resistance.
Insulation Layer: The insulation layer of liquid oxygen storage tanks is used to reduce heat conduction and loss, maintaining the low temperature of liquid oxygen. Common insulation materials include polyethylene foam, glass fiber, and aerogel, etc.
Support Structure: The support structure of the liquid oxygen tank is designed to support and secure the inner and outer shells of the tank. Typically made of steel, it offers sufficient strength and stability.
The dimensions and structural design of liquid oxygen tanks must consider the properties of liquid oxygen, storage or transportation requirements, and safety standards. When using liquid oxygen tanks, strict adherence to relevant operational specifications and safety requirements is necessary to ensure safe use.

A 50 cubic meter liquid oxygen tank refers to a storage tank with a volume of 50 cubic meters. Liquid oxygen tanks are commonly used for storing and supplying liquid oxygen, for applications such as experiments, research, and more.
Key features and configurations of a 50 cubic meter liquid oxygen storage tank may include the following aspects:
Volume: A 50 cubic meter liquid oxygen tank has a capacity of 50 cubic meters, allowing for the storage of a large quantity of liquid oxygen.
Structure: Liquid oxygen tanks typically feature a double or multi-layered design, 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 commonly employs multi-layer insulation materials such as polyethylene foam, glass fiber, and vacuum layers to reduce heat transfer and the evaporation of liquid oxygen.
Thermal Control System: Liquid oxygen tanks are typically equipped with a thermal control system to regulate the tank's temperature and maintain the低温 state of liquid oxygen.
Safety Equipment: Liquid Oxygen Tanks are usually equipped with safety devices such as pressure sensors, temperature sensors, and safety valves to ensure safe operation of the tank.
It's important to note that the use of liquid oxygen tanks must strictly adhere to relevant safety regulations and operational guidelines to ensure safe operation and usage. Liquid oxygen is highly flammable, so fire prevention measures must be taken when using liquid oxygen tanks, and it must be ensured that there are no sources of fire around the tank.

Carbon dioxide tanks and liquid oxygen tanks are containers used for storing different gases, and they have some differences in their physical properties:
Physical State: Carbon dioxide is a gas at room temperature and pressure, and it needs to be at low temperatures and high pressures to become a liquid. Liquid oxygen is a liquid at room temperature, and it needs to be at low temperatures to solidify.
Boiling and freezing points: The boiling point of carbon dioxide is -78.5°C, and its freezing point is -56.6°C. The boiling point of liquid oxygen is -183°C, and its freezing point is -218.8°C. Both the boiling and freezing points of liquid oxygen are significantly lower than those of carbon dioxide.
Density: The density of liquid oxygen is relatively high, approximately 1.14 grams per cubic centimeter. The density of carbon dioxide is lower, around 0.00198 grams per cubic centimeter. The density of liquid oxygen is about 570 times that of carbon dioxide.
Pressure: Liquid oxygen has a high pressure, usually ranging from tens to hundreds of MPa. Carbon dioxide has a lower pressure, typically a few MPa.
Safety: Liquid oxygen contains a high concentration of oxygen, which is highly flammable and explosive. Carbon dioxide at certain concentrations also poses asphyxiation and asphyxiating hazards.
Note that carbon dioxide and liquid oxygen are highly flammable and explosive substances. Strict adherence to relevant safety operation procedures and standards, as well as the implementation of necessary safety measures, is required to ensure the safety and stability of storage tanks.
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