Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic 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. Currently, there are 710 employees, including 247 engineering and technical personnel and 82 middle-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." In August 2022, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
When using a 50-cubic-liter liquid oxygen storage tank, the following safety concerns should be noted:
Tank Pressure Control: Ensure that the liquid oxygen pressure within the tank is always within a safe range. Monitor and control the tank's pressure to avoid safety risks from either excessive or insufficient pressure.
Leakage and Fire Prevention: Regularly inspect the seals of tanks and associated pipelines to prevent oxygen leakage. Liquid oxygen is highly flammable and fire prevention measures must be taken to ensure there are no ignition sources around the tank.
Explosion Prevention Measures: Oxygen inside the liquid oxygen storage tank may cause an explosion upon contact with flammable materials. Ensure there are no flammable items around the tank and implement explosion prevention measures, such as explosion-proof electrical equipment and static grounding.
Safety valves and exhaust systems: Tanks should be equipped with safety valves and exhaust systems to prevent overpressure situations. Ensure the proper functioning of the safety valves and the unobstructed flow of the exhaust system.
Maintenance and Inspection: Regularly maintain and inspect the storage tanks, including cleaning, coating protection, and corrosion prevention. Ensure the structural integrity and safety of the tanks.
Safety Operation and Training: Operators must undergo relevant safety training to understand the operational procedures and emergency response measures for liquid oxygen tanks. Adhere to proper operational steps to ensure safe operation.
Environmental Monitoring: Regularly monitor the oxygen concentration and temperature, among other environmental parameters, around the storage tanks to ensure environmental safety.
Emergency Preparedness: Develop an emergency response plan, including measures for leaks, fires, and explosions. Equip with appropriate emergency equipment and firefighting supplies to handle unexpected events.
Above are some safety issues to be aware of when using a 50-cubic-liter liquid oxygen storage tank. To ensure safety, it is recommended to follow relevant safety regulations and operation guidelines, and seek assistance and guidance from professionals when necessary.

Determine the design pressure and calculated pressure for liquid oxygen storage tanks requires considering the following factors:
Design Pressure: Design pressure refers to the maximum pressure a tank can withstand under normal operating conditions. When determining the design pressure, factors such as the working pressure range of liquid oxygen, the material strength of the tank, and safety factors need to be considered. Generally, the design pressure should be slightly higher than the high working pressure of liquid oxygen to ensure the tank's safety and reliability within the normal operating range.
Calculation Pressure: The calculation pressure refers to the actual working pressure of the tank under the design pressure. It is determined by calculating factors such as the properties of liquid oxygen, the geometric shape of the tank, and the material strength. The calculation pressure should take into account factors like the expansion coefficient of liquid oxygen, temperature changes, and pressure fluctuations to ensure the safety and stability of the tank under actual operating conditions.
To determine the design pressure and calculated pressure of liquid oxygen storage tanks typically requires adherence to relevant standards and specifications, such as Standard GB150 on Steel Pressure Vessels and GB18442 on Technical Conditions for Storage Tanks of Liquid Oxygen, Nitrogen, and Argon. These standards and specifications provide detailed design and calculation methods to ensure the safety and reliability of the tanks.
In practical applications, the design pressure and calculated pressure of liquid oxygen storage tanks should be calculated and determined by pressure vessel designers. They will consider various factors such as specific engineering requirements, tank dimensions, and materials to ensure that the tank's design and use comply with relevant safety standards and regulations.

Leakage issues in liquid argon storage tanks may be caused by the following reasons:
Design or Manufacturing Defects: Defects in the design or manufacturing process of the tank, such as poor welding, inappropriate material selection, or inadequate sealing, lead to leakage issues in the tank.
Corrosion and Oxidation: Long-term exposure to low temperatures can cause corrosion and oxidation in liquid argon tanks. These issues can damage the tank's surface protective layer, leading to leakage problems.
Fatigue and stress cracking: Over time, due to temperature and pressure fluctuations during long-term use, tanks may experience fatigue and stress cracking. These cracks can lead to a decline in the tank's sealing performance, causing leaks.
Improper Operation: Failure to follow proper procedures during the storage tank's operation, such as overfilling with liquid argon or excessive pressure, can lead to tank damage and leakage.
External Damage: The tank may be damaged by external factors such as mechanical impacts or objects.

A liquid oxygen storage tank is a device used for storing liquid oxygen. Liquid oxygen is the liquid form obtained by cooling oxygen below its boiling point and is commonly used in fields such as medical, industrial production, and equipment. Liquid oxygen storage tanks are typically made from high-strength materials like stainless steel to ensure they can withstand the low temperatures and high pressures of liquid oxygen. The interior of the tank usually has an insulating layer to minimize evaporation of the liquid oxygen and maintain its低温 state. The design and manufacturing of liquid oxygen storage tanks must consider safety and reliability to prevent leaks and explosive hazards. Strict operational procedures and safety standards must be followed when using liquid oxygen storage tanks to ensure the safety of personnel and equipment. The development and manufacturing of liquid oxygen storage tanks are carried out by engineers and technical teams, involving knowledge and technology from fields such as materials science, mechanical engineering, and chemical engineering. Different manufacturers may employ different design and manufacturing methods to meet the diverse needs and application scenarios of various users.
Our company places great emphasis on technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. We have over 600 types of equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products and technologies we have developed, such as welding for temperature and pressure vessels, emissions reduction for biomass boilers, and waste heat utilization, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement identification has determined that our technology level in deep cryogenic container manufacturing has reached international standards. Choose Zhongjie Special Equipment, and let's create brilliance together!