Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, CO2 tanks; pressure vessel products like denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment sets; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Carbon dioxide tanks are equipment used for storing and transporting carbon dioxide (CO2). They are typically sealed containers with specialized design and structure to ensure safe storage and use of CO2. Here are some common details about carbon dioxide tanks: Storage Form: CO2 is in a gaseous state at room temperature but can be compressed into a liquid under high pressure for more efficient storage and transportation. Carbon dioxide tanks usually store liquid CO2. Storage Pressure: These tanks commonly hold high-pressure CO2, typically around 20-25 bar, which helps maintain the gas in a liquid state. Storage Capacity: The capacity of carbon dioxide tanks varies depending on requirements, ranging from small ones of a few thousand liters to large ones of tens of thousands of liters. The choice of capacity depends on specific application needs. Safety: CO2 is a colorless, odorless gas that can be hazardous to humans at high concentrations, causing asphyxiation. Therefore, appropriate safety measures such as ventilation and protective gear must be taken when using carbon dioxide tanks to ensure the safety of operators. Application Areas: Carbon dioxide tanks are widely used across various fields, including the food and beverage industry, construction, fire suppression, and gas supply. They are used for storing and providing CO2 to meet diverse industrial needs. It is important to note that the design, manufacturing, and use of carbon dioxide tanks must comply with relevant regulations, standards, and safety guidelines. When using these tanks, operators should follow the operating manual and safety guidelines, and cooperate with local regulatory bodies and authorities to ensure the tanks' safety and reliability.

1.相关知识 of Low-Temperature Carbon Dioxide Storage Vessels 1, Structure of Low-Temperature Carbon Dioxide Storage Vessels Typically, low-temperature carbon dioxide storage vessels are double-walled cylindrical structures, with the inner cylinder made of 6MnDR alloy steel and the outer cylinder of Q245R or Q345R pressure vessel steel plates. The piping is made of austenitic stainless steel, and the insulation space is filled with high-vacuum sintered sand or layered insulation; the storage vessels are equipped with operation valves for ease of use, as well as pressure gauges and level indicators for monitoring internal pressure and liquid levels. 2.Main Features of Low-Temperature Carbon Dioxide Storage Vessels 2 (1) Low-temperature carbon dioxide storage vessels are equipped with liquid filling connections for tank trucks, enabling the supply of liquid to vaporizers, tank trucks, and pumps. (2) Both the inner and outer cylinders of the storage vessels are equipped with safety devices to ensure safe operation for users. (3) The insulation material of the low-temperature carbon dioxide storage vessels is specially treated to provide a longer vacuum life, and they are also equipped with vacuum gauges for measuring the insulation space vacuum when needed. 3.Transportation of Low-Temperature Carbon Dioxide Storage Vessels (1) During road transportation, the storage vessel should be securely attached to the vehicle and travel at moderate speeds, avoiding collisions with other objects. (2) After the storage vessel arrives, the unloading personnel should work with the equipment supervisor to develop a scientific and reasonable unloading plan. 4.Installation of Low-Temperature Carbon Dioxide Storage Vessels (1) Upon arrival at the installation site, the storage vessel can be positioned once installation conditions are met. During the installation process, avoid impacts and hits, and pay special attention to the explosion-proof equipment of the outer cylinder and the vacuum valve; do not touch them. (2) Perform a gas-tightness test on the inner cylinder system of the low-temperature carbon dioxide storage vessel using nitrogen to working pressure, and upon confirmation that valves, pipes, flanges, etc., have no leaks, the installation is complete. (3) The installation dimensions of the low-temperature carbon dioxide storage vessel are as specified in the supply materials; when considering liquid filling and emptying with tank trucks, consider the vehicle's travel pathways.

In daily operation, CO2 storage tanks require protection and maintenance to ensure proper functioning and safety. Here are some common protection and maintenance methods: - Visual Inspection: Regularly check the tank's exterior for corrosion, wear, and cracks. Take prompt repair actions upon discovering any anomalies. - Sealing Integrity Check: Periodically inspect the tank's sealing performance, particularly at valves, pipe connections, and the tank itself. Ensure no leaks and repair any leaks promptly. - Temperature Control: Maintain a suitable ambient temperature around the tank and implement appropriate insulation measures to ensure the tank's low-temperature internal state. - Pressure Relief Device Inspection: Regularly check the tank's pressure relief devices, such as safety valves, to ensure proper operation. Verify that the set pressure of the relief devices meets requirements and perform regular maintenance and replacements. - Level Monitoring: Regularly monitor the tank's liquid level to ensure accurate measurements. Take immediate action to investigate and address any abnormal levels. - Regular Cleaning: Clean the tank's interior regularly to remove accumulated impurities and dirt. Pay attention to safety during cleaning and avoid using flammable and corrosive substances. - Regular Testing: Conduct regular pressure tests and leak inspections on the tank to ensure safety performance meets requirements. The frequency and methods of testing should comply with relevant regulations and standards. - Storage Capacity Control: Control the tank's storage capacity to prevent exceeding the rated capacity. Overfilling can lead to excessive tank pressure and increased safety risks. - Note: Specific protection and maintenance methods may vary depending on the type of tank and its application.

Technical specifications for carbon dioxide storage tanks can be formulated based on different application fields and/or regional standards. Below are some common technical specifications and standards for reference: ASME Standards: The American Society of Mechanical Engineers (ASME) has issued a series of standards for pressure vessels, including specifications for carbon dioxide storage tanks such as ASME BPVC Section VIII Division 1 and ASME BPVC Section VIII Division 2. ISO Standards: The International Organization for Standardization (ISO) has published some standards related to pressure vessels, such as ISO 9809-1 and ISO 9809-2, covering design, manufacturing, and inspection requirements for steel gas cylinders. GB Standards: The China National Bureau of Standards has issued a series of standards related to pressure vessels, such as GB 150 "Pressure Vessels" and GB 5099 "Steel Gas Cylinders," which include design, manufacturing, and inspection requirements for carbon dioxide storage tanks. DOT Standards: The United States Department of Transportation (DOT) has issued some standards related to pressure vessels and cylinders, such as DOT-3AA and DOT-4BA, covering design, manufacturing, and transportation requirements for liquefied gas storage tanks. EN Standards: The European Committee for Standardization (CEN) has published some standards related to pressure vessels, such as EN 13445 and EN 14382, covering design, manufacturing, and inspection requirements for liquefied gas storage tanks. Additionally, other industry standards and specifications may apply to carbon dioxide storage tanks based on specific application needs, such as standards related to the food and beverage industry, etc. When using carbon dioxide storage tanks, it is essential to select applicable technical specifications according to specific application requirements and local regulations, ensuring that the design, manufacturing, and use of the tanks comply with the corresponding standards and specifications.
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