Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates seven business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three manufacturing 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. The company currently employs 710 staff, including 247 engineering and technical personnel 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Liquid oxygen storage tanks may deform during use. The following are common deformation defects in liquid oxygen storage tanks:
Elastic deformation: Liquid oxygen tanks may experience elastic deformation when subjected to external pressure or temperature changes. This deformation is typically reversible, meaning the tank will return to its original shape after the external pressure is removed or the temperature returns to normal.
Plastic Deformation: When a liquid oxygen tank is subjected to significant external force or pressure, it may experience plastic deformation. This deformation is irreversible, and the tank cannot return to its original shape. Plastic deformation can cause changes in the tank's shape, such as dents or warping.
Hot Deformation: Liquid oxygen tanks may experience hot deformation when subjected to high temperatures or temperature changes. Hot deformation can lead to changes in the tank's shape, expansion, or contraction.
Cold Deformation: Liquid oxygen tanks may experience cold deformation when subjected to low temperatures or temperature changes. Cold deformation can cause the tank to change shape, shrink, or crack.
These deformation defects may affect the structural integrity and safety of liquid oxygen storage tanks. Therefore, regular inspections and assessments of the deformation of liquid oxygen storage tanks are crucial to ensure normal operation and safe use. If deformation defects in the tank are found, prompt repair or replacement measures should be taken to avoid further damage and safety risks.

Low-temperature industrial gas filling stations are equipment used to fill liquid low-temperature industrial gases (such as liquid oxygen, liquid nitrogen, liquid argon, etc.) into gas storage tanks. Here are the basic facts about low-temperature industrial gas filling stations:
Tank Type: Low-temperature industrial gas tanks commonly employ double-walled vacuum insulated tanks, where the inner wall is used for storing liquefied gas, and the outer wall serves as insulation to minimize heat transfer and evaporation losses of the liquid gas.
Filling Equipment: Low-temperature industrial gas storage tank filling stations include liquid-gas filling pumps, filling pipelines, flowmeters, pressure sensors, and other equipment. Liquid-gas filling pumps are used to extract liquid gas from storage tanks or gas containers and fill it into the target storage tank.
Filling Process: The operational procedure at the filling station typically includes the following steps: Preparation (checking equipment, preparing filling medium), Equipment Connection (connecting filling pumps, pipes, etc.), Equipment Activation (starting the filling pump, adjusting flow and pressure), Filling Operation (filling liquid gas into the target storage tank), Monitoring and Control (monitoring parameters such as pressure and flow during the filling process to ensure safety and quality), and Completion of Operation (shutting down equipment, cleaning the work area).
Safety Measures: Strict adherence to relevant safety operating procedures and standards is required during the operation of low-temperature industrial gas filling stations. Operators should receive training to understand the properties and safety precautions of liquefied gases. Additionally, filling stations should be equipped with safety equipment such as pressure sensors and safety valves to ensure the safety during the filling process.
Quality Control: Quality control is essential during the filling process at the filling station, including monitoring parameters such as flow rate, pressure, and temperature of the filling medium to ensure accuracy and quality of the filling.
It's important to note that the operation of low-temperature industrial gas storage tank filling stations must be conducted by trained personnel and strictly adhere to relevant operating procedures and safety measures. Additionally, the design and manufacturing of filling stations should comply with applicable standards and regulations to ensure equipment safety and reliability.

Safety operation and transportation of liquid oxygen storage tanks should pay attention to the following points:
Safe Usage Instructions:
Tank Selection: Choose liquid oxygen tanks that meet specifications 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.
Sealability Inspection: Regularly check the tank's sealing performance to ensure there are no leakage issues at valve and pipe connections.
Pressure Control: Tanks should be equipped with pressure gauges and safety valves, 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. Establish firewalls around the storage tank, prohibit smoking and open flames, and ensure safety.
Electrostatic Protection: During the transportation and use of liquid oxygen, electrostatic buildup can 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.
Shipping Precautions:
Transportation Vehicle Selection: Choose transportation vehicles that meet the requirements for liquid oxygen transport, ensuring their safety and sealing integrity.
Loading and Unloading: During the transportation of liquid oxygen, appropriate loading and unloading procedures should be adopted.

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 such as overpressure 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 user reviews, word-of-mouth, and institutional recommendations when selecting a product.
Maintenance and 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 proper operation and maintenance of the oxygenators.
Cost-Effectiveness: Considering the price, performance, and features of the oxygenator, select a product with a favorable cost-performance ratio. Choose an oxygenator that fits your actual needs and budget.
Be mindful that when selecting a liquid oxygen tank with a medical oxygen concentrator, adhere to relevant equipment procurement regulations and standards. It's advisable to consult with equipment suppliers or relevant institutions to ensure the oxygen concentrator meets your requirements and safety standards.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for business discussions.