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 pressure pipeline installation licenses, as well as equipment and machinery installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council member of the Shandong Equipment Manufacturing Association, and has passed ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
Liquid Oxygen Stations are facilities used for storing and supplying liquid oxygen, with liquid oxygen tanks being a crucial component of these stations. Liquid oxygen tanks possess several key functions and characteristics:
Store Liquid Oxygen: Liquid oxygen tanks are primarily used for storing liquid oxygen, cooling gaseous oxygen below its critical temperature to convert it into a liquid state. The storage density of liquid oxygen is high, allowing for a large amount of oxygen to be stored in a relatively small space.
Maintain Low Temperature: Liquid oxygen tanks are typically designed with a double-layer structure, separated by a vacuum layer between the inner and outer layers to minimize heat transfer and maintain low temperatures. This helps preserve the低温 state of the liquid oxygen, preventing premature vaporization.
Safety Design: Liquid oxygen storage tanks must be designed and manufactured with safety in mind. They are typically made of high-strength materials such as stainless steel or aluminum alloy to withstand high pressure and low-temperature conditions. Additionally, these tanks are equipped with safety valves, pressure sensors, and temperature sensors to ensure internal pressure and temperature remain within safe limits.
Supply System Connection: Liquid oxygen tanks are typically connected to the supply system to transport liquid oxygen to the required locations. The supply system includes liquid oxygen pumps, pipes, valves, and other equipment for extracting liquid oxygen from the tank and delivering it to the customer end.
Liquid oxygen tanks play a crucial role in storing and maintaining liquid oxygen at liquid oxygen stations. Their design and use must strictly adhere to relevant safety regulations and operational procedures to ensure the safety and reliability of the storage and supply process.

The use and operation of liquid oxygen storage tank systems should be mindful of the following points:
Safe Operation: When operating the liquid oxygen storage tank system, it is mandatory to adhere to the relevant safety operation procedures and standards to ensure the safety of the operators.
Tank Selection: Choose liquid oxygen tanks that comply with regulations and standards, ensuring their quality and safety performance.
Tank Installation: Tanks should be installed on a solid foundation to ensure stability. Additionally, good ventilation should be maintained around the tank and it should be kept away from flammable materials and heat sources.
Seal Integrity Inspection: Regularly inspect the seal performance of the storage tank system to ensure there are no leakage issues at valve and pipeline connections.
Pressure Control: The storage tank system should be equipped with a pressure gauge and safety valve, with regular inspections and maintenance to ensure pressure remains within safe limits.
Fire Prevention Measures: Liquid oxygen contains a high concentration of oxygen, which is highly flammable. Install firewalls around the storage tank system, prohibit smoking and open flames, and ensure safety.
Electrostatic Protection: During the operation of the liquid oxygen system, electrostatic charges may cause sparks, increasing the risk of fire. Measures such as using electrostatic conductive materials and anti-static equipment should be taken to reduce the accumulation and release of static electricity.
Regular inspections and maintenance: Conduct regular checks on the tank system and related equipment, including valves, pipes, pressure gauges, etc. Ensure that equipment is in good condition without damage, and promptly repair or replace any damaged parts.
Waste Gas Treatment: During the operation of the liquid oxygen system, waste gases are produced, and appropriate waste gas treatment measures must be taken to minimize environmental impact.
Above are the precautions to be taken when using the liquid oxygen storage tank system, ensuring operational safety and the normal operation of the system. During operation, strict adherence to relevant operational procedures and safety operation requirements should be followed to avoid accidents.

Liquid Oxygen Storage Tanks are specialized equipment that require careful attention to safety and an understanding of their characteristics. Below are the precautions and features for using liquid oxygen storage tanks: Precautions: - Operation: The operation of liquid oxygen storage tanks should be conducted by trained personnel with relevant experience. Operators should be familiar with the tank's structure, performance, and operating procedures, and must operate strictly according to the manual and safety regulations. - Fire Prevention Measures: Liquid oxygen is highly oxidizing and can easily cause fires and explosions. Open flames and hot objects should be prohibited near the storage tank to prevent sparks and contact with the tank. Fire prevention equipment and fire extinguishers should be established and regularly inspected and maintained. - Leak Control: In the event of a leak, immediate measures should be taken to control the leak. A leak could lead to the evaporation of liquid oxygen and an increase in oxygen concentration, increasing the risk of fire and explosion. A leak detection system should be installed, and leak control devices and personal protective equipment should be provided. - Insulation Protection: Liquid oxygen storage tanks should have good insulation to reduce evaporation and maintain low temperatures. The insulation should be regularly inspected and maintained to ensure its integrity and insulating properties. - Safety Distance: A certain safety distance should be maintained around the liquid oxygen storage tank to prevent the spread of fires, explosions, and leaks. The specific requirements for safety distance should be assessed and determined according to local regulations and standards. Features: - High Oxidizing Properties: Liquid oxygen has a high oxidizing nature, supporting combustion and more intense burning. Therefore, special attention to fire and explosion prevention measures is necessary when using liquid oxygen storage tanks. - High Pressure Storage: Liquid oxygen storage tanks typically store high-pressure oxygen, with pressures usually around 2-5 bar. Therefore, during operation and maintenance of liquid oxygen storage tanks, attention should be paid to pressure control and the safety of pressure relief devices. - Low Temperature Storage: The liquid oxygen in the storage tank is at a low temperature, usually around -183°C. Therefore, when contacting the liquid oxygen storage tank, appropriate protective measures should be taken.

The testing and maintenance operations for liquid oxygen storage tanks encompass the following aspects:
Appearance Inspection: Regularly inspect the liquid oxygen tank for any signs of corrosion, wear, leakage, etc., on the tank surface, ensuring the tank's appearance remains intact.
Pressure Testing: Regularly conduct pressure tests on liquid oxygen tanks to assess their pressure-bearing capabilities. Tests should be carried out in accordance with relevant standards and regulations to ensure the tank can withstand the designed working pressure.
Leak Detection: Regularly conduct leak detection on liquid oxygen tanks, including using leak detection equipment to inspect the tanks, to ensure good sealing performance and no leakage issues.
Cleanliness and Coating Protection: Regularly clean and apply protective coatings to liquid oxygen tanks to prevent corrosion and oxidation. Use appropriate cleaning agents during cleaning and avoid substances that react with liquid oxygen. Protective coatings can be applied using anti-corrosion coatings or protective agents.
Regular Maintenance: Regularly maintain liquid oxygen tanks, including inspections and replacements of seals, valves, safety devices, etc., to ensure normal operation and safety.
Safety Training and Operating Procedures: Conduct safety training for personnel using liquid oxygen tanks to ensure they are familiar with the safe operating procedures and precautions, to prevent operational errors and accidents.
Record and Document Management: Establish testing and maintenance records for liquid oxygen storage tanks, including test results, maintenance logs, and inspection records, for traceability and management purposes.
It is important to note that the testing and maintenance of liquid oxygen tanks should be conducted by trained personnel, following relevant safety operating procedures and standards. Additionally, a corresponding testing and maintenance plan should be developed based on the specific conditions and usage requirements of the tank, and executed according to the plan.
Shandong Zhongjie Special Equipment, welcome customers to our factory for business discussions.