Shandong Zhongjie Special Equipment Co., Ltd. (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 7 business centers: boiler, deep-freezing container, pressure vessel, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory areas on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. Currently, it employs 710 people, including 247 engineering and technical personnel and 82 middle-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.
Low Temperature Carbon Dioxide Storage Tank Related Knowledge 1. Structure of Low Temperature Carbon Dioxide Storage Tank The low temperature carbon dioxide storage tank typically features a double-layered cylindrical structure. The inner cylinder is made of 6MnDR alloy steel, while the outer cylinder is constructed from Q245R or Q345R pressure vessel steel plate. The piping is made of austenitic stainless steel, and the insulation space is filled with high-vacuum sintered sand or wrapped with multiple layers of insulation. The storage tank is equipped with valves for operation, which are arranged for ease of use. Pressure gauges and level indicators are also installed to monitor the internal pressure and liquid level of the low temperature carbon dioxide storage tank. 2. Key Features of Low Temperature Carbon Dioxide Storage Tank (1) The storage tank is fitted with a liquid filling connection for tank trucks, allowing for liquid supply to vaporizers, tank trucks, and pumps. (2) Both the inner and outer cylinders of the storage tank are equipped with safety devices to ensure safe operation for users. (3) The insulation material of the low temperature carbon dioxide storage tank is specially treated to provide a longer vacuum life. Additionally, the tank is equipped with a vacuum gauge for measuring the insulation space vacuum level when necessary. 3. Transportation of Low Temperature Carbon Dioxide Storage Tank (1) During road transportation, the storage tank should be securely fastened to the vehicle, travel at moderate speeds, and avoid collisions with other objects. (2) After the storage tank arrives, 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 Tank (1) Upon arrival at the installation site, the storage tank can be positioned when installation conditions are met. During the installation process, avoid impacts and strikes, and pay special attention to the explosion-proof equipment on 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 storage tank using nitrogen to the working pressure. After confirming that valves, pipes, flanges, etc., are leak-free, the installation is complete. (3) The installation dimensions of the low temperature carbon dioxide storage tank are specified in the supply materials. When considering liquid loading and unloading with tank trucks, account for the vehicle's travel path.

Routine inspections and maintenance of CO2 storage tanks can be carried out in the following steps: 1. Visual Inspection: Check for any obvious damage, corrosion, or oil leakage signs on the tank's exterior. Pay attention to any abnormalities in the tank shell, valves, and pipe connections. 2. Internal Inspection: If access to the tank interior is permitted, conduct an internal inspection. Check for corrosion, scaling, or blockages in the inner lining, valves, and pipes. 3. Valve and Pipe Inspection: Verify that the tank's inlet and outlet valves and pipe connections are functioning properly, with no leaks or loose fittings. Ensure valves operate smoothly and reliably. 4. Pressure Relief Device Inspection: Check if the tank's pressure relief devices (such as safety valves) are operating correctly. Confirm that the set pressure of the relief devices meets requirements. 5. Measurement and Control System Inspection: Verify that the tank's level, pressure, and temperature measurement and control systems are functioning properly. Calibrate and test the accuracy of measuring equipment. 6. Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, periodically drain the liquid and gas impurities from the tank interior. 7. Maintenance and Repair: Perform necessary maintenance and repair work based on inspection results. Repair damaged components, replace worn-out seals, etc., to ensure the tank operates normally. 8. Documentation and Reporting: Record the inspection and maintenance process, including the inspection date, contents, identified issues, and measures taken. Submit inspection reports to relevant departments or management as needed. These are general steps for routine inspections and maintenance of CO2 storage tanks. Specific operations should be tailored to the tank's characteristics and requirements. When conducting inspections and maintenance, follow relevant safety operating procedures and have personnel perform them.

When using carbon dioxide tanks, pay attention to the following aspects: - Safe Operation: Operators must undergo training to understand the characteristics, operational requirements, and safety measures of carbon dioxide tanks. Adhere to relevant safety operating procedures and standards to ensure safety. - Tank Inspection: Regularly check the tank's appearance, sealing, valves, and pipeline connections before use. Address any abnormalities or damage promptly by repairing or replacing. - Tank Placement: Position the tank in a well-ventilated, dry, and fire-free area. Avoid direct sunlight and high temperatures to prevent overheating. - Leak Protection: Ensure that valves and pipeline connections are sealed properly to prevent carbon dioxide leaks. Regularly inspect and replace seals, and address leaks promptly. - Pressure Control: Maintain the internal pressure within a safe range. Check the tank's pressure gauge and safety valve before use to ensure proper operation. Avoid excessive or low pressure to prevent accidents. - Fire Prevention Measures: Carbon dioxide is flammable, so take fire prevention precautions during use. Smoking, open flames, or flammable materials are prohibited near the tank. - Emission of Waste Gases: Properly dispose of waste gases generated during the use of carbon dioxide tanks to avoid carbon dioxide buildup in enclosed spaces, which can lead to asphyxiation and safety risks. - Emergency Response Plan: Develop and implement an emergency response plan, including procedures for leak incidents, evacuation, and first aid measures. Operators should be familiar with the plan and conduct drills regularly. Note that carbon dioxide tanks should only be used by trained personnel following relevant safety operating procedures and standards. Seek advice and guidance from knowledgeable experts.

When planning carbon dioxide storage tanks, consider the following requirements: Safety Distance: Tanks should maintain an adequate safety distance from surrounding buildings, equipment, and personnel to prevent injuries and losses in case of unexpected accidents. Specific safety distance requirements may be stipulated by 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 carbon dioxide usage, storage cycle, and supply requirements. Tank Layout: The layout of tanks should facilitate operation and maintenance, as well as comply with safety and environmental protection requirements. Adequate spacing between tanks is necessary for ease of operation and maintenance. Tank Material: Choose 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 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 tanks to evaluate their impact on the surrounding environment and implement corresponding environmental protection measures. 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 conducted by engineers or relevant agencies to ensure compliance with safety and environmental protection requirements. Consulting local authorities for advice and guidance is also necessary.
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