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, deep-freezing 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 area of 200,000 square meters, with the main workshop spanning 83,000 square meters. The company currently employs 710 people, including 247 engineers and technicians, and 82 intermediate-level technicians. 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, 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 employed to store and supply liquid oxygen to meet the demands of industrial applications like metal cutting, welding, and chemical reactions. Equipment: Liquid oxygen tanks are used in equipment to supply oxygen for treatments like oxygen therapy, inhalation, and operating rooms. These tanks provide high-purity oxygen while maintaining low temperatures to meet the equipment's oxygen requirements. Laboratory Research: Liquid oxygen tanks are utilized 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 vital in various fields including industrial production, equipment, and laboratory research, providing storage and supply functions for liquid oxygen at application sites.

Low-temperature liquid storage tanks are equipment used for storing low-temperature liquids, commonly employed for liquid oxygen, liquid nitrogen, liquid argon, and other low-temperature liquids. These substances exist 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 alloy to withstand low temperatures and high pressures. They often feature 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 fuel and propulsion systems, such as liquid oxygen, liquid nitrogen, and liquid hydrogen tanks, for storing and supplying low-temperature liquids as fuel and oxidizers to propel the rocket and maintain its operation. Industrial Production: Low-temperature liquid storage tanks are used in industrial production to store and supply 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. 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 extensively used in aerospace, industrial production, and laboratory research to store and supply low-temperature liquids to meet the needs of various fields.

The temperature difference between the interior and exterior of a low-temperature liquid storage tank depends on multiple factors, including the tank's design, insulation performance, the temperature of the liquid, and the ambient temperature outside. Generally speaking, the internal temperature of a low-temperature liquid storage tank is much lower than the ambient temperature.
Low-temperature liquid storage tanks are commonly used for storing liquefied nitrogen, oxygen, argon, and other low-temperature liquids. These liquids have very low boiling points, usually below -100 degrees Celsius. To maintain the low temperature of the liquids, the tanks must have excellent insulation properties to minimize heat transfer and evaporation loss.
Low-temperature liquid storage tanks typically offer a smaller temperature variance. Generally, the internal temperature of the tank can be maintained near the boiling point of the liquid, usually several dozen degrees lower than the ambient temperature. The specific temperature variance depends on the tank's design and insulation properties, as well as the characteristics of the liquid.
Note that the temperature differences in low-temperature liquid storage tanks may change over time. As time passes, the insulation material's performance may be affected by wear or aging, leading to increased temperature differences. Therefore, regular inspection and maintenance of the tank's insulation are crucial to ensure its effective and stable insulating performance.

When selecting the support for a liquid argon tank, consider the following factors:
Load Capacity: The support must be able to bear the weight of the liquid argon tank. Choose a support with sufficient load capacity based on the tank's capacity and dimensions. Typically, the weight of the liquid argon tank is provided in the design specifications, allowing you to determine the support's load capacity from this data.
Stability: The support must provide sufficient stability to prevent the tank from tilting or swaying during use. The design of the support should consider the tank's center of gravity and its changes to ensure stable support.
Corrosion Resistance: Liquid argon is both low temperature and corrosive; the support material should possess excellent corrosion resistance to prevent corrosion and damage. Common support materials include stainless steel, aluminum alloy, etc.
Insulation: Liquid argon storage tanks generally require thermal insulation. The supports should have certain insulation properties to reduce heat transfer and evaporation of liquid argon. The design of the supports should consider the installation and protection of the insulation layer.
Installation and Maintenance: The support should feature ease of installation and maintenance, facilitating the tank's installation and routine maintenance tasks.
When selecting the support for liquid argon tanks, it's advisable to consult with engineers or suppliers. Choose the appropriate support based on the specific tank requirements and usage environment. At the same time, adhere to relevant design specifications and safety standards to ensure the quality and reliability of the support.
Chongjie Special Equipment upholds the grand vision of "realizing employee dreams, creating customer value, and striving for the prosperity and strength of our motherland," wholeheartedly committing to the development of the green energy equipment industry. We dedicate our high-value products and services to society!