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 and 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 Council Member of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the U.S. ASME/U2 certification.
The reason for occasional venting of liquid oxygen tanks is primarily to maintain the safe pressure range within the tank and prevent excessive pressure buildup. Here are several situations where liquid oxygen tanks may be vented occasionally:
Pressure Control: During operation, the pressure inside the liquid oxygen storage tank may change due to evaporation of the liquid oxygen and temperature variations. To maintain a safe pressure range within the tank, regular venting is required to control the tank's pressure within the safe limits.
Prevent Overpressure Accumulation: During oxygen filling or usage, external factors or operational errors may cause the pressure inside the liquid oxygen tank to exceed the safe limit. To prevent overpressure accumulation, timely venting is required to alleviate the pressure within the tank.
Prevent Gas Accumulation: Liquid oxygen tanks may contain some gas impurities, such as air and water vapor. These gases can condense into liquid or solid at the low temperature of liquid oxygen, blocking pipes or affecting the normal operation of the tank. Regular venting can expel these impurities, keeping the tank clean and unobstructed.
Note that the degassing operation of liquid oxygen should be performed by authorized personnel and strictly adhere to the relevant operational procedures and safety measures. During the degassing process, precautions should be taken to prevent any leakage of liquid oxygen and contact with it, ensuring the safety and reliability of the operation.

When selecting liquid oxygen storage tanks with medical oxygen concentrators, consider the following factors:
Requirement: First, determine the oxygen demand of the institution or individual. Select the appropriate oxygen concentrator model and specification based on the required oxygen flow rate and pressure.
Safety and Reliability: Ensure the selected oxygen concentrator has high safety and reliability. Choose products that comply with relevant standards and regulations, featuring safety functions like overpressure protection, leakage protection, and overload protection.
Ease of operation: Choose an oxygen concentrator that is simple to operate and user-friendly. Consider the methods of adjusting oxygen flow and concentration, as well as the clarity and readability of the operating interface.
Quality and Reputation: Choose an oxygen concentrator with excellent quality and reliability. Refer to customer reviews, word-of-mouth, and certifications to select the product.
Maintenance and After-Sales Service: Understand the maintenance requirements and after-sales support for oxygen generators. Ensure timely access to repairs and technical assistance to ensure the normal operation and maintenance of the oxygen generators.
Cost-effectiveness: Choose a product with a good cost-performance ratio by considering the price, performance, and features of the oxygenator. Select an oxygenator that suits your actual needs and budget.
Be mindful that when selecting liquid oxygen tanks with medical oxygen generators, adhere to relevant equipment procurement regulations and standards. It's advisable to consult with equipment suppliers or relevant institutions to ensure the oxygen generators chosen meet your needs and safety requirements.

To maintain the stability of liquid argon tanks, the following details should be noted:
Basic Design: The foundation design of the tank should comply with relevant standards and regulations to ensure stability and load-bearing capacity. The foundation must possess sufficient strength and seismic resistance to withstand external forces and natural disasters such as earthquakes.
Foundation Construction: During the foundation construction process, it is essential to ensure the foundation is level and even, avoiding any tilting or uneven settlement. Additionally, the concrete pouring for the foundation must comply with construction specifications to guarantee the quality and strength of the concrete.
Installation Process: During the installation of the tank, appropriate lifting equipment and safety measures must be employed to ensure the vertical installation and stability of the tank. Avoid abrupt vibrations and collisions during the installation to prevent damage or deformation to the tank.
Support Structure: The support structure of the tank should be designed reasonably to ensure the stability and load-bearing capacity of the tank. The support structure should be made of sturdy materials and use appropriate connection methods to withstand external forces and the pressure from the liquid inside the tank.
Safety Equipment: Tanks should be equipped with safety devices such as pressure relief valves and level alarms to ensure timely measures can be taken in abnormal situations, ensuring the safety of the tank.
Regular Inspections and Maintenance: Conduct regular checks and maintenance on liquid argon tanks, including visual inspections, pressure tests, leak detection, and as needed, non-destructive testing and material analysis. Promptly identify and address any issues with the tanks to ensure their stability and safety.
Note that the installation of liquid argon tanks should be performed by experienced personnel and in accordance with relevant safety operating procedures and standards. During the installation process, operations should be strictly conducted according to the manufacturer's installation guidelines and requirements to ensure the stability and safety of the tank.

Liquid nitrogen tanks are used for storing and transporting liquid nitrogen. To ensure safe operation, here are some common operational safety procedures for liquid nitrogen tanks:
Tanks Installation: Tanks should be installed on a solid and level foundation, far away from fire sources and flammable materials. Good ventilation around the tank is essential to prevent gas accumulation. The tank should maintain a safe distance from other equipment and buildings.
Liquid Nitrogen Filling: Use appropriate liquid nitrogen transfer equipment when filling to avoid direct contact with liquid nitrogen. During the filling process, monitor the flow and pressure of liquid nitrogen to prevent over-filling and excessive tank pressure.
Tank Pressure Control: Tanks should be equipped with pressure control devices to ensure internal tank pressure remains within safe limits. Regularly inspect and maintain these devices to ensure proper operation.
Leak Detection and Alarm Systems: Storage tanks should be equipped with leak detection and alarm systems to promptly detect and alert of any tank leaks. Regularly inspect and maintain the leak detection equipment to ensure proper functioning.
Fire and explosion prevention measures: A fire-resistant buffer zone should be set around the storage tank, away from ignition sources and flammable materials. The tank itself should implement fire and explosion prevention measures, such as fire-resistant coatings and explosion-proof devices, to prevent fires and explosions.
Regular inspections and maintenance: Regularly inspect the tank's exterior, valves, and connections, ensuring they are undamaged. Conduct regular leak detection and pressure tests to ensure the tank's safety performance meets requirements.
Safety Training and Awareness Enhancement: Conduct safety training for operators to enhance their awareness and ability in the safe operation of liquid nitrogen tanks. Regularly hold safety training and drills to respond to emergencies.
Establish comprehensive management records and documentation, including tank usage, inspection, and maintenance records. Regularly review and update these records to ensure safe management and maintenance of the tanks.
Note that the above are common protective procedures, which may vary depending on the type of tank and application. When using liquid nitrogen tanks, operate according to relevant specifications and standards, and consult with experts to ensure safety and effectiveness.
Zhongjie Special Equipment adheres to the great vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We commit to society with high-quality products and services at competitive prices!