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 has 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 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 Department 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.
Carbon dioxide tanks are widely used in many industries. Below are some common industries with examples of using carbon dioxide tanks:   Beverage and Food Industry: Carbon dioxide is used as a carbonating agent for beverages and food, such as soda, beer, soft drinks, etc. Tanks are used for storing and supplying carbon dioxide to meet production line demands.   Industry: Carbon dioxide has various applications in the industry, including anesthesia, respiratory care, tissue freezing, etc. Tanks are used for storing and supplying medical-grade carbon dioxide to meet facility needs.   Fire Extinguishing: Carbon dioxide is extensively used in fire suppression systems, especially for electrical and sensitive equipment. Tanks are used for storing and supplying carbon dioxide for fire extinguishing purposes.   Gas Industry: Carbon dioxide is also an important product in the gas industry, used in chemical manufacturing, metal processing, welding, and gas shielding. Tanks are used for storing and supplying industrial-grade carbon dioxide.   Greenhouse Agriculture: Carbon dioxide can be used to promote plant growth in greenhouses, providing additional carbon dioxide concentration. Tanks are used to supply the required carbon dioxide for greenhouse use.   Automotive Industry: Carbon dioxide is used for tire inflation and airbag systems in cars. Tanks are used for storing and supplying carbon dioxide to meet the demands of car manufacturing and repair.   These are just some common industry examples. In reality, carbon dioxide tanks are also widely used in many other industries, such as chemicals and frozen food. Specific applications will vary based on industry requirements and application scenarios.

Pressure Vessel Standards: Liquid carbon dioxide storage tanks are generally considered pressure vessels, and their design, manufacture, and use must comply with relevant pressure vessel standards. In China, common pressure vessel standards include GB150 "Steel Pressure Vessels" and GB18435 "Storage Tanks." Safety Standards: The use of liquid carbon dioxide storage tanks must adhere to relevant safety standards and regulations. For instance, in China, the safe operation of liquid carbon dioxide storage tanks should follow standards such as GB50028 "Design Code for Petroleum and Chemical Enterprises" and GB50016 "Fire Prevention Code for Building Design." Inspection and Testing Standards: The inspection and testing of liquid carbon dioxide storage tanks must comply with applicable standards and regulations. For example, regular inspections of liquid carbon dioxide storage tanks can refer to GB/T 19638 "Code for Periodic Inspection of Pressure Vessels." Environmental Protection Standards: The use of liquid carbon dioxide storage tanks must comply with relevant environmental protection standards and regulations. For instance, in China, the exhaust emissions from liquid carbon dioxide storage tanks should meet standards such as "Air Pollutant Emission Standards."

Routine inspections and maintenance of CO2 storage tanks can be carried out in the following steps: - **Visual Inspection**: Check for any visible damage, corrosion, or oil leakage on the tank's exterior. Pay attention to any anomalies in the tank shell, valves, and pipe connections. - **Internal Inspection**: If access to the interior is permitted, conduct an internal inspection. Check for corrosion, scaling, or blockages in the inner lining, valves, and pipes. - **Valve and Pipe Inspection**: Verify that the tank's inlets and outlets, as well as pipe connections, are functioning normally, with no leaks or loose fittings. Ensure valves operate smoothly and reliably. - **Pressure Relief Device Inspection**: Check that the tank's pressure relief devices (such as safety valves) are functioning properly. Confirm that the set pressure of the relief devices meets requirements. - **Measurement and Control System Inspection**: Ensure the tank's level, pressure, and temperature measurement and control systems are operating correctly. Calibrate and test the accuracy of measuring equipment. - **Cleaning and Drainage**: Regularly clean the interior of the tank, removing accumulated impurities and sediments. Also, perform regular drainage of liquid and gas impurities from the tank. - **Maintenance and Repair**: Conduct necessary maintenance and repair work based on inspection results. Repair damaged components, replace worn-out seals, etc., to ensure normal tank operation. - **Documentation and Reporting**: Record the inspection and maintenance process, including the inspection date, contents, identified issues, and measures taken. Submit inspection reports to relevant departments or management as needed. - The above steps are general guidelines for the daily inspection and maintenance of CO2 storage tanks. Specific operations should be tailored to the tank's characteristics and requirements. When conducting inspections and maintenance, follow relevant safety operating procedures and have them performed by qualified personnel.

When storing CO2 storage tanks, the following requirements must be adhered to ensure safety and effectiveness: Ventilation: Tanks should be stored in well-ventilated areas to prevent the accumulation of CO2 gas. Ensure adequate air circulation around the tank to avoid gas buildup and asphyxiation risks. Fire and Explosion Prevention: Keep tanks away from ignition sources, high-temperature areas, and flammable materials. Avoid open flame activities near the tanks to prevent fire and explosion risks. Sunlight Protection: Store tanks in locations shielded from direct sunlight to prevent overheating and pressure increase. Direct sunlight can raise tank temperatures, increasing the risk of leakage and explosion. Mechanical Damage Avoidance: Keep tanks away from machinery and heavy objects to prevent collisions and damage. Mechanical damage can lead to tank leakage or rupture, causing safety incidents. Labeling and Warning Signs: Clearly label tanks with information such as the type of gas stored and pressure. Set up warning signs around the tanks to remind personnel of their presence and relevant safety precautions. Regular Inspections: Conduct regular inspections of the tank's exterior, valves, and connections to ensure they are undamaged. Take immediate corrective actions if any abnormalities are found. Storage Capacity Control: Control the storage capacity of the tanks to avoid exceeding the rated capacity. Exceeding the rated capacity can lead to excessive tank pressure, increasing safety risks. Storage Records: Keep records of the tank's usage, including filling dates, quantities, and inspection records. Regularly inspect and maintain the tanks, and retain relevant records. Note that specific storage requirements may vary depending on tank types and applications. When storing CO2 tanks, operate according to relevant specifications and standards, and consult 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, cost-effective products and services!