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; central air conditioning and ventilation 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.
Additionally, the use of liquid carbon dioxide tanks must adhere to specific industry standards and regulations depending on the industry and application scenario. For instance, when using liquid carbon dioxide tanks in the food and beverage industry, relevant food safety and hygiene standards must be followed. It's important to note that different regions may have varying standards and regulations applicable to the use of liquid carbon dioxide tanks. Therefore, operations and usage should be conducted in accordance with local laws and standards.

When planning CO2 storage tanks, the following requirements should be considered: - Safety Distance: Tanks should maintain adequate distance from surrounding buildings, equipment, and personnel to prevent injuries and losses 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 choice of capacity should consider the amount of CO2 used, storage duration, and supply requirements. - Tank Layout: The layout should facilitate operation and maintenance while meeting safety and environmental protection requirements. There should be sufficient spacing between tanks for ease of operation and maintenance. - Tank Material: Select appropriate materials for tank construction to ensure 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 CO2 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 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, including building codes, safety specifications, and environmental protection requirements when planning tanks. It is important to note that planning CO2 storage tanks should be carried out by engineers or relevant institutions to ensure compliance with safety and environmental protection requirements. Consulting with local authorities for advice and guidance is also necessary.

1.相关知识 of Low-Temperature Carbon Dioxide Storage Vessels 1. Structure of Low-Temperature Carbon Dioxide Storage Vessels Low-temperature carbon dioxide storage vessels typically feature a double-walled cylindrical structure. The inner cylinder is made of 6MnDR alloy steel, while the outer cylinder is constructed from 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 wrapped in multiple layers for thermal insulation. The storage vessels are equipped with valves for operation, which are arranged for ease of use. Pressure gauges and level indicators are also installed to monitor the pressure and liquid level inside the vessel. 2.Main Features of Low-Temperature Carbon Dioxide Storage Vessels (1) The storage vessels are fitted with couplings for filling tanker trucks, allowing liquid supply to vaporizers, tanker trucks, and pumps. (2) Both the inner and outer cylinders 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 lifespan. Additionally, the vessels are equipped with vacuum gauges for measuring the insulation space's vacuum level when necessary. 3.Transportation of Low-Temperature Carbon Dioxide Storage Vessels (1) During road transportation, the storage vessels should be securely fastened to the vehicle, traveling at moderate speeds, and collisions with other objects are prohibited. (2) After the storage vessels arrive, the unloading crew should work with the equipment supervisor to develop a scientific and reasonable unloading plan. 4.Installation of Low-Temperature Carbon Dioxide Storage Vessels (1) Once the storage vessels arrive at the installation site, they can be positioned when installation conditions are met. During the installation process, collisions and impacts are prohibited, and special attention should be given 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 using nitrogen to the working pressure. After checking that valves, pipes, flanges, etc., are leak-free, the installation is complete. (3) The installation dimensions are as specified in the supply materials. When considering liquid filling and emptying with tanker trucks, the vehicle's travel path should be taken into account.

When conducting routine inspections of CO2 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 pipe connections for any abnormalities. - Valve and Pipe Check: Inspect the tank's inlet and outlet valves and pipe connections for proper functioning, leaks, or loose fittings. Ensure valves operate smoothly and reliably. - Pressure Relief Device Inspection: Verify 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 Check: Assess the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure accurate level measurements. - Pressure and Temperature Check: Check that the tank's pressure and temperature sensors are functioning properly. Confirm the accuracy of pressure and temperature measurements. - Safety Equipment Inspection: Examine the tank's safety equipment, like safety valves, pressure sensors, and temperature sensors, to ensure they are operating correctly. Verify that their set parameters are in compliance. - Fire Protection Equipment Check: Ensure that the fire protection equipment around the tank is in good condition and check that fire extinguishers, sprinkler systems, etc., are functioning properly. - Liquid and Gas Quality Check: Confirm that the CO2 liquid and gas in the tank meet quality requirements, with no impurities or contaminants. - Record and Report: Document the date of inspection, the content of the inspection, any issues found, and the measures taken. Submit inspection reports to relevant departments or management as needed. These are general steps for routine CO2 storage tank inspections. Specific procedures should be adapted to the tank's characteristics and requirements. When conducting inspections, follow relevant safety operating procedures and have trained personnel perform the operations.
Our company places great emphasis on technological innovation and R&D, boasting one municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc., and are equipped with over 600 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 more. The key products and technologies we have developed, such as welding for temperature and pressure vessels, emission reduction for biomass boilers, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology projects, Shandong 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. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement evaluation, our technology level in deep cryogenic vessel manufacturing has reached international standards. Choose Zhongjie Special Equipment, and let's create brilliance together!