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-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 of 200,000 square meters. The main workshop spans 83,000 square meters. It currently employs 710 staff, 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 Storage Tanks Offer the Following Advantages:
High Storage Density: Liquid oxygen tanks can store oxygen in liquid form, offering a higher storage density compared to gas storage. This means more oxygen can be stored in a limited space, providing a longer supply duration.
High Purity Oxygen Supply: Liquid oxygen tanks provide high purity oxygen supply. After undergoing refrigeration and purification processes, liquid oxygen can yield high purity oxygen, meeting the needs of applications in various fields such as industry and scientific research.
Convenient and easy to use: The liquid oxygen tank features ease of use. The tank is equipped with devices like level gauges and pressure gauges for easy monitoring of liquid levels and pressure. Additionally, the liquid oxygen tank is fitted with safety devices such as pressure relief valves and level alarms to ensure safe operation and usage.
Long-Term Storage: Liquid oxygen tanks are suitable for long-term storage of oxygen. The low-temperature properties of liquid oxygen can slow down the evaporation and oxidation of oxygen, extending its storage life. This is beneficial for applications requiring long-term oxygen storage, such as institutions, laboratories, and industrial production.
In summary, liquid oxygen tanks offer advantages such as high storage density, pure oxygen supply, ease of use, and long-term storage. This makes them a reliable choice for oxygen supply and are widely used in industries and scientific research 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 can lead to a decrease in the structural strength of the tank, and even cause leaks or ruptures.
Here are some precautions to avoid tank flexing during low-temperature storage:
Tank Design: Select an appropriate tank design that can withstand the pressure and weight of low-temperature liquids. The tank's wall thickness and support structure should comply with relevant standards and regulations.
Material Selection: Choose materials suitable for low-temperature environments with adequate strength and low-temperature resistance. Common materials include low-temperature steel, stainless steel, etc.
Insulation Layer for Storage Tank: The design and construction of the insulation layer must meet the requirements to ensure effective reduction of heat conduction and temperature changes. The materials and thickness of the insulation layer should be selected based on specific conditions.
Tank Operation: Avoid rapid or excessive fluid flow during the loading and unloading process of the tank 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 they remain undamaged. Any abnormalities or damages should be repaired or replaced promptly.
Temperature Control: During the operation of low-temperature liquid storage tanks, it is crucial to strictly control the temperature difference between the inside and outside of the tank to avoid excessive temperature changes and thermal stress.
In summary, preventing creasing in low-temperature storage tanks hinges on proper design, material selection, insulation installation and maintenance, as well as strictly controlling temperature differences. Regular inspections and maintenance are also crucial measures to ensure the safe operation of the tanks.

Leakage issues in liquid argon storage tanks may be caused by the following reasons:
Design or Manufacturing Defects: Deficiencies in the design or manufacturing process of the tank, such as loose welds, improper material selection, or inadequate sealing, lead to leakage issues in the tank.
Corrosion and Oxidation: Long-term exposure of liquid argon tanks to low-temperature environments can lead to corrosion and oxidation. These issues can damage the surface protective layer of the tank, causing leakage problems.
Fatigue and stress cracking: Over time, tanks may experience fatigue and stress cracking due to temperature and pressure fluctuations during long-term use. These cracks can degrade the tank's sealing performance, leading to leaks.
Improper Operation: If operators do not follow the standard procedures during the storage tank's operation, such as overfilling with liquid argon or applying excessive pressure, it can lead to tank damage and leakage.
External Damage: The tank may be damaged by external factors such as mechanical collisions or objects.

The stable pressure design for a 15 cubic meter liquid argon storage tank should consider the following aspects:
Tank Pressure: Determine the design pressure of the tank to meet the storage and supply requirements for liquid argon. Establish an appropriate design pressure range based on the properties and usage conditions of liquid argon.
Stabilization System: Choose an appropriate stabilization system to maintain stable pressure within the storage tank. The stabilization system typically includes components such as pressure regulators, pressure sensors, and control valves, which are used to monitor and adjust the pressure inside the tank.
Pressure Sensors: Install pressure sensors to monitor the pressure changes inside storage tanks in real-time. The sensors transmit pressure signals to the pressure regulation system, enabling timely adjustment of the control valve to maintain stable pressure within the tank.
Control Valve: Select an appropriate control valve for regulating the gas flow and pressure within the storage tank. The control valve should have excellent regulating performance and stability to ensure the pressure within the tank stays within the set range.
Safety Valve: Install a safety valve to automatically release gas when the pressure inside the storage tank exceeds the set value, preventing overpressure. The safety valve should be selected and installed according to the design pressure and capacity of the tank.
Voltage Stabilization System Control: Configure an appropriate control system to monitor and manage the operation of the voltage stabilization system. The control system enables automatic adjustment and alarm functions to ensure stable and safe pressure within the storage tank.
It is important to note that the design of the pressure-stabilizing system should be tailored to the specific engineering requirements and operating conditions of the liquid argon storage tank, adhering to relevant local laws, regulations, and standards. When designing and installing the pressure-stabilizing system, it is recommended to consult with experienced engineers or relevant institutions to ensure the reliability and safety of the system.
Shandong Zhongjie Special Equipment, welcome customers for factory discussions and collaborations.