Shandong Zhongjie Special Equipment (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 of 200,000 square meters. The main workshop spans 83,000 square meters. There are currently 710 employees, 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.
Common protection techniques for carbon dioxide storage tanks include: - Fire and Explosion Prevention Measures: A fire-resistant isolation zone should be set up around the tank, away from ignition sources and flammable materials. The tank itself should have fire and explosion prevention measures, such as fire-resistant coatings and explosion-proof devices, to prevent fires and explosions. - Leak Detection and Alarm Systems: The tank should be equipped with a leak detection and alarm system to promptly detect and alert of any leakage. Regularly inspect and maintain the leak detection equipment to ensure proper functioning. - Regular Inspections and Maintenance: Regularly check the tank's appearance, valves, and connections to ensure they are undamaged. Conduct regular leak inspections and pressure tests to ensure the tank's safety performance meets requirements. - Waste Gas Treatment: Treat waste gases generated by the carbon dioxide storage tank to avoid environmental pollution. Implement appropriate waste gas treatment measures, such as collecting and treating the waste gases. - Static Electricity Protection: Take static electricity protection measures to prevent static buildup and discharge. Use anti-static equipment and tools to ensure static safety during operations. - Safety Training and Awareness: Train operators on safety procedures to enhance their awareness and ability to safely handle carbon dioxide storage tanks. Regularly conduct safety training and drills to prepare for emergencies. - Management Records and Documentation: Establish comprehensive management records and documentation, including the tank's usage, inspection, and maintenance records. Regularly review and update these records to ensure safe management and maintenance of the tank. It is important to note that these are common protection techniques, and specific techniques may vary depending on the type of tank and its application. When using carbon dioxide storage tanks, operate according to relevant specifications and standards, and consult experts to ensure safety and effectiveness.

The reason for regular testing of low-temperature liquid carbon dioxide storage tanks is to ensure their safety performance and normal operation. Due to the storage tanks being under low temperature and high-pressure conditions, there are certain safety risks, such as leaks and structural failures. Regular testing can help identify potential issues early, allowing for appropriate repairs or maintenance to ensure safe tank operation. The specific testing frequency should be determined according to relevant regulations and standards, and it is generally recommended to conduct regular inspections and maintenance. Typically, the intervals for regular testing of low-temperature liquid carbon dioxide storage tanks range from 1 to 3 years, with specific intervals potentially varying based on usage, age, design standards, and other factors. The content of regular testing usually includes visual inspections of the tank, checks of valves and connections, leak detection, and pressure testing. Additionally, regular inspections and maintenance of the tank's insulation should be carried out to ensure its thermal insulation performance. It is important to note that the specific testing frequency and content should be determined based on local regulations, standards, and the manufacturer's recommendations. Testing should be conducted by qualified personnel, and maintenance records should be documented to track and manage the tank's safety performance.

To extend the service life of carbon dioxide storage tanks, the following measures can be taken: Regular inspections and maintenance: Conduct regular checks on the tank's exterior, inner lining, valves, and pipe connections to ensure they are intact and undamaged. In case of abnormalities or damage, repair or replacement should be carried out promptly. Corrosion prevention: Carbon dioxide is corrosive, so both the internal and external surfaces of the tank should be treated for corrosion resistance. Regularly inspect and maintain the protective layer or coating to ensure its integrity and effectiveness. Cleaning and drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Simultaneously, periodically drain the liquid and gas impurities within the tank to maintain cleanliness and normal operation. Temperature and pressure control: The tank's temperature and pressure should be controlled within the design limits. Avoid excessively high or low temperatures and pressures that could damage the tank. Regular testing and calibration: Conduct regular tests and calibrations of the tank, including parameters such as level, pressure, and temperature. Ensure the accuracy and reliability of the tank's measurement and control systems. Compliance with operational procedures: Strictly adhere to operational procedures and safety protocols to ensure the normal operation and safety of the tank. Train operators to enhance their operational skills and safety awareness. Upgrades and updates: As needed, promptly update and upgrade tank accessories and equipment to adapt to new technology and safety requirements. Regular evaluation and monitoring: Conduct regular evaluations and monitoring of the tank, including structural integrity, corrosion conditions, and safety aspects. Based on the evaluation results, take appropriate maintenance and repair measures. These measures can help extend the service life of carbon dioxide storage tanks and ensure their safe and reliable operation.

Carbon dioxide storage tanks are devices used for storing and transporting carbon dioxide gas, operating on the principles of pressure vessels and the physical properties of carbon dioxide. Pressure Vessel Principle: Carbon dioxide storage tanks are pressure vessels capable of withstanding the pressure of the internal gas. They are typically made of high-strength materials such as steel. The design and structure of the tank can withstand high pressure, ensuring safe storage and transportation of the gas. Compressed Gas Storage: Carbon dioxide is a gas at room temperature but can be compressed into a liquid under high pressure. The storage tank uses high pressure to compress the gas into a liquid, achieving a higher storage density. The liquid carbon dioxide occupies less volume, allowing for more gas storage. Level Control: The tank is equipped with a level control system for monitoring and controlling the level of liquid carbon dioxide. The level control system usually includes level sensors and control valves, ensuring the tank's level remains within a safe range. Pressure Control: The tank also has a pressure control system for monitoring and controlling the internal gas pressure. The pressure control system typically includes pressure sensors and safety valves, ensuring the pressure within the tank stays within a safe range, preventing damage or safety risks from excessive or low pressure. Through these principles, carbon dioxide storage tanks can safely store and transport carbon dioxide gas to meet the needs of various fields, such as food processing, beverage manufacturing, and fire extinguishing. When using carbon dioxide storage tanks, it is necessary to follow relevant safety operation procedures and guidelines to ensure the safe operation and use of the tank.
Our company places great emphasis on technological innovation and R&D design. We possess one municipal-level enterprise technology center in Heze City, with facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 types of instruments and equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. Our key products such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat recovery have successively been included in multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have accumulated 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire argon arc welding (PAW-GTAW) technique. This technology has been appraised as reaching international standards in the field of deep cryogenic vessel manufacturing at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!