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 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 area being 83,000 square meters. It currently employs 710 people, including 247 engineers and technicians and 82 intermediate-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 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.
The spacing regulations for carbon dioxide storage tanks are typically governed by relevant safety codes and standards, with specific spacing requirements potentially varying due to factors like location, use, and tank capacity. Below are some common spacing rules: - Small Spacing Between Tanks: Generally, the small spacing between adjacent tanks should comply with the relevant safety codes and standards. This spacing ensures that adjacent tanks are not affected in the event of a leak or accident. - Spacing Between Tanks and Buildings: The spacing between tanks and buildings also needs to meet the relevant codes and standards. This spacing ensures that the building is not affected in case of a tank leak or accident. - Spacing Between Tanks and Equipment: The spacing between tanks and other equipment (such as pipelines, pumps, etc.) should also adhere to the relevant codes and standards. This spacing ensures the proper operation and maintenance of the equipment. - Safety and Evacuation Routes: Sufficient safety and evacuation routes should be provided around the tanks to allow for safe evacuation of personnel during emergencies. It is important to note that specific spacing rules may vary depending on different regions and industries. Therefore, when installing and using carbon dioxide storage tanks, it is necessary to refer to local safety codes and standards and consult with experts to ensure compliance with the relevant requirements.

The primary reason for pre-cooling a carbon dioxide tank before use is to ensure that the carbon dioxide inside the tank remains in a liquid state and maintains a stable temperature during storage and supply. The pre-cooling process typically involves the following steps: Tank Cooling: Before the tank is put into service, the internal temperature of the tank must be cooled to a sufficiently low level to convert the carbon dioxide from a gas to a liquid. This can be achieved by injecting a cooling medium (such as liquid nitrogen) into the tank or by using an external cooling device. Tank Pre-filling: After the tank has been cooled, liquid carbon dioxide must be pre-filled into the tank to fill it and maintain a certain pressure. The purpose of pre-filling is to provide an adequate supply of carbon dioxide during storage and supply, and to maintain stable pressure within the tank. Through pre-cooling operations, it can be ensured that the carbon dioxide inside the tank remains in a liquid state, avoiding premature evaporation and energy loss. Additionally, pre-cooling helps to lower the tank's temperature in advance, reducing carbon dioxide evaporation and pressure fluctuations, thereby improving the tank's operational efficiency and safety. It should be noted that the specific methods and requirements for pre-cooling may vary depending on the tank design and application scenario. When performing pre-cooling operations, it is necessary to follow relevant safety operation procedures and standards to ensure the safety and effectiveness of the operation.

Daily inspections and maintenance of CO2 storage tanks can be conducted in the following steps: - External Inspection: Check for any visible damage, corrosion, or oil leakage signs on the tank's exterior. Pay attention to any abnormalities in the tank shell, valves, and pipe connections. - Internal Inspection: If entry into the tank is permitted, conduct an internal inspection. Check for corrosion, scale buildup, or blockages in the inner lining, valves, and pipes. - Valve and Pipe Inspection: Verify that the tank's inlet and outlet valves and pipe connections are functioning normally, and there are no 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 operating correctly. Confirm that the set pressure of the pressure relief devices meets requirements. - Measurement and Control System Inspection: Check that the tank's level, pressure, and temperature measurement and control systems are functioning properly. Calibrate and test the accuracy of measurement equipment. - Cleaning and Draining: Regularly clean the interior of the tank, removing accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities. - Maintenance and Repair: Based on inspection results, perform necessary maintenance and repair work. Repair damaged components, replace worn-out seals, etc., to ensure the tank operates normally. - Documentation and Reporting: Record the inspection and maintenance process, including the inspection date, content, identified issues, and measures taken. Submit inspection reports to relevant departments or management as needed. These are general steps for daily 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 operation procedures and have personnel operate them.

When using carbon dioxide storage tanks, pay attention to the following aspects: Safety Operation: Adhere to relevant safety operation procedures and standards, ensuring operators possess the necessary safety knowledge and skills. When using the tank, be mindful of safety risks such as leaks, explosions, and fires. Pressure Control: Monitor and control the tank's pressure to ensure it remains within a safe range. Avoid exceeding the tank's rated pressure to prevent rupture or leakage. Level Monitoring: Regularly monitor the liquid level within the tank to ensure adequate carbon dioxide is present. Avoid overfilling or underfilling to maintain an appropriate level. Static Electricity Measures: Take static electricity precautions to avoid accumulation and discharge. Use static-dissipative equipment and tools to ensure safety during operation. Tank Maintenance: Regularly inspect and maintain the tank, including the exterior, valves, and fittings. Ensure the tank remains intact to prevent leaks and damage. Waste Gas Management: Handle waste gases produced by the carbon dioxide tank to prevent environmental pollution. Implement appropriate waste gas treatment measures, such as collecting and treating waste gases. Storage Records: Record the tank's usage, including filling dates, quantities, and inspection records. Regularly perform tank inspections and maintenance, and retain relevant records. Training and Awareness: Train operators to enhance their awareness and ability to safely operate carbon dioxide tanks. Conduct regular safety training and drills to respond to emergencies. Note that these are common precautions, and specific considerations may vary depending on the tank type and application. When using carbon dioxide storage tanks, operate according to relevant regulations and standards, and consult experts to ensure safety and effectiveness.
Our company attaches great importance to technological innovation and R&D design. We have one municipal 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 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 we have developed, such as welding for temperature and pressure vessels, biomass boiler emission reduction, and waste heat utilization, have successively been selected 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. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement identification shows that our technology level in deep cryogenic vessel manufacturing has reached an international standard. Choose ZJ Special Equipment, and let's create brilliance together!