Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG storage tanks, oxygen-nitrogen-argon storage tanks, CO2 storage 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 modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Additionally, the use of liquid carbon dioxide tanks must adhere to specific industry standards and regulations based on the particular industry and application scenario. For instance, when using liquid carbon dioxide tanks in the food and beverage industry, compliance with food safety and hygiene standards is required. It's important to note that different regions may have varying standards and regulations for the use of liquid carbon dioxide tanks. Therefore, operations and use should be conducted in accordance with local laws and standards.

When planning carbon dioxide storage tanks, the following requirements should be considered: - Safety Distance: Tanks should maintain an adequate safety distance from surrounding buildings, equipment, and personnel to prevent injury and loss in case of accidental incidents. Specific safety distance requirements can be stipulated according to local regulations and standards. - Tank Capacity: Determine the tank's capacity based on actual demand and usage. The capacity selection should consider factors such as the amount of carbon dioxide used, storage duration, and supply requirements. - Tank Layout: The layout of the tanks should facilitate operation and maintenance, as well as comply with safety and environmental protection requirements. Sufficient spacing between tanks should be ensured for ease of operation and maintenance. - Tank Material: Choose appropriate materials for manufacturing the tanks to ensure their corrosion and pressure resistance. Common materials include carbon steel and stainless steel. - Safety Equipment: Tanks should be equipped with necessary safety equipment, such as safety valves, pressure sensors, and temperature sensors, to ensure safe operation. - Leak Protection: Measures should be taken to prevent carbon dioxide leaks, such as sealed valves and leak detection systems. Corresponding leak handling measures and emergency response plans should also be in place. - Environmental Impact Assessment: An environmental impact assessment should be conducted when planning the tanks to evaluate their impact on the surrounding environment and implement corresponding measures for environmental protection. - Regulations and Standards: Adhere to local regulations and standards when planning tanks, including building codes, safety regulations, and environmental protection requirements. - It is important to note that planning carbon dioxide storage tanks should be carried out by engineers or relevant agencies to ensure compliance with safety and environmental protection requirements. Consulting with local authorities for advice and guidance is also necessary.

1. Knowledge about Low Temperature Carbon Dioxide Storage Tanks - Structure: Low temperature carbon dioxide storage tanks are generally double-layered cylindrical structures, with the inner cylinder made of 6MnDR alloy steel and the outer cylinder of Q245R or Q345R pressure vessel steel plates. The pipeline is made of austenitic stainless steel, and the insulation space is filled with high-vacuum sintered sand or layered insulation; valves for operation are provided, arranged for ease of use. Pressure gauges and level indicators are also installed for monitoring the tank's internal pressure and liquid level. 2. Key Features of Low Temperature Carbon Dioxide Storage Tanks - (1) The storage tanks are equipped with connectors for filling tanker trucks, enabling fluid supply to vaporizers, tankers, and pumps. - (2) Both the inner and outer cylinders are equipped with safety devices to ensure safe operation for the user. - (3) The insulating material of the low temperature carbon dioxide storage tanks is specially treated to provide a longer vacuum life. Additionally, the tanks are equipped with vacuum gauges for measuring the insulation space vacuum level when necessary. 3. Transportation of Low Temperature Carbon Dioxide Storage Tanks - (1) During road transportation, the tank should be securely attached to the vehicle, traveling at moderate speed, and it is prohibited to collide with other objects. - (2) After arrival, the unloading personnel should work together with the equipment supervisor to formulate a scientific and reasonable unloading plan. 4. Installation of Low Temperature Carbon Dioxide Storage Tanks - (1) Upon arrival at the installation site, the tank can be positioned when conditions are suitable for installation. During the installation process, avoid collisions and impacts, and pay special attention to the explosion-proof equipment of the outer cylinder and the vacuum valve, which should not be touched. - (2) Perform a gas-tightness test on the inner cylinder system of the low temperature carbon dioxide storage tank using nitrogen to the working pressure. After confirming that there are no leaks in the valves, pipes, flanges, etc., the installation is complete. - (3) The installation dimensions of the low temperature carbon dioxide storage tank are as specified in the supply materials. When considering filling and draining liquids with tankers, the vehicle's access routes should be taken into account.

During routine inspections of carbon dioxide storage tanks, follow these steps: - Visual Inspection: Check for any obvious damage, corrosion, or oil leakage on the tank's exterior. Pay attention to the tank shell, valves, and pipeline connections for any abnormalities. - Valve and Pipeline Inspection: Verify that the tank's inlets and outlets, as well as pipeline connections, are functioning properly and for any 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 working correctly. Confirm that the set pressure of the relief devices meets requirements. - Level Measurement System Inspection: Verify the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure accurate level readings. - Pressure and Temperature Inspection: Check that the tank's pressure and temperature sensors are functioning properly. Confirm the accuracy of pressure and temperature measurements. - Safety Equipment Inspection: Inspect the tank's safety equipment, such as safety valves, pressure sensors, and temperature sensors, for proper operation. Confirm that their set parameters are in compliance. - Fire Protection Equipment Inspection: Ensure that fire protection equipment around the tank is intact and that fire extinguishers, sprinkler systems, etc., are operating correctly. - Liquid and Gas Quality Inspection: Confirm that the quality of carbon dioxide liquid and gas in the tank meets specifications, with no impurities or contaminants. - Documentation and Reporting: Record the date of the inspection, the inspection items, any issues found, and the measures taken. Submit inspection reports to relevant departments or management as needed. - These are general steps for daily inspection of carbon dioxide storage tanks. Specific procedures should be based on the tank's characteristics and requirements. During inspections, adhere to relevant safety operating procedures and have trained personnel conduct the operations.
Our company attaches great importance to technological innovation and research and development. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We have over 600 pieces of various equipment such as CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, and plasma welding machines. The key products and technologies we have developed, such as temperature and pressure vessel welding, biomass boiler emissions reduction, and waste heat utilization, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology science and technology projects, Shandong Provincial key projects, and Heze City innovative and excellent projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology, utilizing the international plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement identification, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!