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 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. The company currently employs 710 staff, including 247 engineers and technicians 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 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.
Here are some common protection techniques for carbon dioxide storage tanks: Fire and Explosion Prevention Measures: A fire-resistant isolation zone should be set up around the tank, away from fire sources and flammable materials. The tank itself should adopt 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 leak detection and alarm systems to promptly detect and alert of any leaks. Regularly inspect and maintain the leak detection equipment to ensure proper functioning. Regular Inspections and Maintenance: Regularly inspect the tank's exterior, valves, and connections to ensure they are intact. Conduct regular leak detection and pressure tests to ensure the tank's safety performance meets requirements. Waste Gas Treatment: Treat the waste gases produced by the carbon dioxide storage tank to prevent environmental pollution. Implement appropriate waste gas treatment measures, such as collecting and treating the waste gases. Static Protection: Take static protection measures to avoid static accumulation 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 handle carbon dioxide storage tanks safely. Conduct regular 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 the management records to ensure safe management and maintenance of the tank. It should be noted that the above are common protection techniques, and specific techniques may vary depending on the type and application of the tank. When using carbon dioxide storage tanks, operate according to relevant regulations and standards and consult experts to ensure safety and effectiveness.

The reasons for regular inspections of low-temperature liquid carbon dioxide tanks are to ensure their safety performance and normal operation. As these tanks operate under low temperatures and high pressures, they pose certain safety risks, such as leaks and structural failures. Regular inspections help to identify potential issues early on, allowing for appropriate measures to be taken for repairs or maintenance to ensure the safe operation of the tank. The specific inspection frequency should be determined according to relevant regulations and standards, and it is generally recommended to conduct regular inspections and maintenance. Typically, the interval for regular inspections of low-temperature liquid carbon dioxide tanks is between 1 to 3 years, although this may vary depending on factors such as usage, age, and design standards. The contents of the regular inspections usually include visual checks of the tank, inspections of valves and connections, leak detection, and pressure tests. Additionally, regular checks and maintenance of the insulation layer should be conducted to ensure its insulating performance. It is important to note that the specific inspection frequency and contents should be determined based on local laws, standards, and the manufacturer's recommendations. Inspections should be conducted by qualified personnel, and maintenance records should be kept to track and manage the tank's safety performance.

To extend the service life of CO2 storage tanks, the following measures can be taken: Regular inspections and maintenance: Conduct regular checks on the tank's exterior, lining, valves, and pipe connections to ensure they are intact and undamaged. Promptly repair or replace any abnormalities or damage found. Corrosion prevention: CO2 is corrosive, so both the internal and external surfaces of the tank should be treated for corrosion resistance. Regularly inspect and maintain the corrosion protection layer or coating to ensure its integrity and effectiveness. Cleaning and draining: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities to maintain cleanliness and normal operation. Temperature and pressure control: The tank's temperature and pressure should be maintained within the design limits. Avoid extreme 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 tank's measurement and control systems are accurate and reliable. Adherence to operational procedures: Strictly follow operational and safety procedures to ensure the tank operates normally and safely. 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 assessments and monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion conditions, and safety. Take appropriate maintenance and repair measures based on the assessment results. These measures can help extend the service life of CO2 storage tanks and ensure their safe and reliable operation.

Carbon dioxide storage tanks are equipment 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: A carbon dioxide storage tank is a pressure vessel capable of withstanding the pressure of the internal gas. It is typically made of high-strength materials such as steel. The tank's design and structure can withstand high pressures, ensuring safe storage and transport of the gas. Compressed Gas Storage: Carbon dioxide is a gas at room temperature but can be compressed into a liquid under high pressure. Carbon dioxide storage tanks utilize high pressure to compress the gas into a liquid, achieving a higher storage density. The volume occupied by liquid carbon dioxide is relatively small, allowing for more gas storage. Level Control: The storage tank is equipped with a level control system to monitor and control the liquid level of carbon dioxide. The level control system usually includes level sensors and control valves, ensuring the tank's liquid level remains within a safe range. Pressure Control: The tank also features a pressure control system to monitor and control the internal gas pressure. The pressure control system typically includes pressure sensors and safety valves, ensuring the tank's pressure remains within a safe range to avoid 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 suppression. When using carbon dioxide storage tanks, it is essential to follow relevant safety operation procedures and guidelines to ensure safe operation and use.
Our company places great emphasis on technological innovation and research and development, boasting one city-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. We are equipped with over 600 pieces of various 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 others. The key products and technologies we have developed, such as welding for temperature-pressure vessels, emissions reduction for biomass boilers, and waste heat recovery, have successively been selected for multiple Shandong Province Department of Industry and Information Technology science and technology innovation projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement identification, the technical level has reached the international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance!