Shandong Zhongjie Special Equipment Co., Ltd. (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-freeze 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. It currently employs 710 people, including 247 engineers and technicians, and 82 intermediate-level technical personnel. 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The oxygen-filling process for liquid oxygen tanks must adhere to specific operational procedures and safety measures. Here are the steps for filling liquid oxygen tanks:
Preparation: Ensure the tanks and oxygen-filling equipment are in good working condition, and check the tank's seal integrity and the proper operation of the safety valves.
Connect equipment: Link the oxygenation equipment to the storage tank, ensuring the connection is sealed reliably.
Prepare liquid oxygen: Transfer liquid oxygen from the storage container to the oxygen storage tank of the filling equipment. During the transfer, be mindful to avoid any leaks and contact with the liquid oxygen.
Oxygen Filling Operation: Open the valve of the oxygen filling equipment and fill liquid oxygen from the storage tank into the tank. During the filling process, control the filling speed and pressure to avoid excessive tank pressure and temperature rise.
Monitoring and Control: During the aeration process, the tank's pressure and temperature must be monitored to ensure they remain within safe limits. In case of any anomalies, the aeration should be halted immediately and appropriate actions taken.
Oxygen Filling Completed: Close the valve of the oxygen filling equipment and stop the filling operation once the tank reaches the required oxygen level or pressure.
Safety Handling: After oxygenation is complete, safety handling is required, including closing relevant valves and emptying any remaining liquid oxygen from the oxygenation equipment.
Note that liquid oxygen is highly oxidizing and flammable. The oxygen-filling process must strictly adhere to relevant safety operational procedures and standards. Operators should receive training and strictly follow the operational procedures and safety measures to ensure the safety and reliability of the oxygen-filling process.

To prevent the explosion of liquid oxygen tanks, the following measures can be taken:
Regular Inspections and Maintenance: Conduct regular inspections and maintenance on liquid oxygen tanks, including checking the tank's appearance, welds, valves, and connections, to ensure they are intact and undamaged. Regularly clean the tank to remove any impurities and dirt adhering to its surface.
Pressure Control: Storage tanks should be equipped with pressure control devices to ensure internal pressure is within a safe range. Regularly inspect and adjust the pressure control devices to ensure proper operation.
Temperature Control: The liquid oxygen tank should be maintained within an appropriate temperature range to avoid excessive heat causing increased pressure. Ensure the insulating layer of the tank is intact to minimize heat conduction and loss.
Fire Prevention Measures: Liquid oxygen has a high oxygen content and flammability, thus strict fire prevention measures are required. A fire-resistant buffer zone should be established around the storage tank, with smoking and open flames prohibited. Ensure that the storage tank maintains a safe fire separation distance from other facilities.
Pressure Relief Devices and Safety Valves: Liquid oxygen storage tanks should be equipped with pressure relief devices and safety valves to prevent overpressure and sudden pressure increases. Regularly inspect and test the operational status of the pressure relief devices and safety valves to ensure proper functioning.
Tanks Operation Standards: Adhere strictly to the operational specifications and safety requirements for liquid oxygen tanks. Operators must be trained and knowledgeable about the tank's characteristics and operating techniques. Avoid operational errors and violations.
Emergency Preparedness: Establish emergency response plans and conduct drills to address potential accidents. Train operators in emergency response capabilities to ensure timely and effective handling.

When selecting liquid oxygen storage tanks with medical oxygen generators, 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 offers high safety and reliability. Choose products that meet relevant standards and specifications, featuring safety functions like over-pressure protection, leakage protection, and overload protection.
Operational ease: Choose an oxygen concentrator that is simple to operate and user-friendly. Consider the methods for 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 institutional endorsements when selecting a product.
Maintenance & After-Sales Service: Familiarize yourself with the maintenance requirements and after-sales support for oxygenators. Ensure timely access to repairs and technical assistance to guarantee the smooth operation and maintenance of the oxygenators.
Cost-effectiveness: When considering the price, performance, and features of oxygenators, opt for products with a favorable cost-performance ratio. Choose an oxygenator that suits your actual needs and budget.
Be mindful to adhere to relevant equipment procurement regulations and standards when selecting liquid oxygen tanks with medical oxygen generators. It is recommended to consult with equipment suppliers or relevant institutions to ensure the oxygen generator meets your needs and safety requirements.

Proper maintenance and precautions for liquid nitrogen tanks are crucial. Here are some key points:
Maintenance:
Regular Inspections: Conduct regular inspections of the liquid nitrogen tank's exterior, valves, pipes, and other components to ensure they are in perfect condition. Pay special attention to check for any leaks, corrosion, or other forms of damage.
Clean Storage Tanks: Regularly clean liquid nitrogen storage tanks to remove internal dirt and sediment. Use appropriate cleaning agents and tools, following the cleaning procedures and safety operation protocols.
Liquid Nitrogen Refill: Refill liquid nitrogen regularly as needed to maintain an adequate inventory in the storage tank to meet usage requirements.
Maintain Pressure: Regularly inspect the liquid nitrogen tank's pressure to ensure it remains within a safe range. Perform pressure tests and adjustments as necessary.
Corrosion Prevention: Implement appropriate corrosion prevention measures based on the material and operating environment of the storage tank to extend its service life. For instance, apply corrosion-resistant coatings, conduct regular maintenance, etc.
Cautionary Notes:
Safe Operation: Adherence to strict safety procedures and standards is mandatory when using liquid nitrogen tanks. Operators should be trained, knowledgeable about the properties and safety requirements of liquid nitrogen, and familiar with the tank equipment and operational procedures.
Protective Measures: When using liquid nitrogen tanks, it is essential to take necessary precautions, such as wearing protective gloves and suits. Avoid direct contact with liquid nitrogen to prevent frostbite.
Leak Control: Regularly inspect the liquid nitrogen storage tank for leaks and equip with leak detectors and alarm systems. In case of a leak, immediate measures should be taken to control the leak and carry out repairs.
Ventilation Requirements: In enclosed spaces containing liquid nitrogen storage tanks, adequate ventilation must be ensured.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for business discussions.