Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, 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: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, including 247 engineers and technicians and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was named a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was identified as a "Gazelle Enterprise in Shandong Province" and in August 2022, it was recognized as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Carbon dioxide (CO2) and liquid oxygen (LOX) storage tanks are equipment used for storing different gases, with some physical differences: - Physical State: CO2 is a gas at room temperature and requires low temperatures and high pressure to become liquid. LOX is a liquid at room temperature and can maintain its liquid state without special conditions. - Storage Temperature: The liquid CO2 storage temperature typically ranges from -40°C to -78.5°C, while the liquid oxygen storage temperature usually ranges from -183°C to -183.15°C. The storage temperature for LOX is lower and requires more stringent insulation measures. - Storage Pressure: The liquid CO2 storage pressure usually ranges from 5 to 20 MPa, while the liquid oxygen storage pressure typically ranges from 0.2 to 2 MPa. The storage pressure for LOX is lower. - Density: The density of liquid CO2 is approximately 0.8 g/cm³, while the density of liquid oxygen is about 1.14 g/cm³. The density of liquid oxygen is greater. - Safety: LOX has a high oxygen content, making it highly flammable and oxidizing, necessitating stricter safety measures. CO2 is relatively safe but can still pose health risks at high concentrations.

Carbon Dioxide Applications in the New Energy Field Carbon Capture and Storage (CCS): This technology reduces carbon dioxide emissions by capturing CO2 from industrial sources and storing it in underground reservoirs, preventing it from entering the atmosphere. It aids in reducing greenhouse gas emissions and mitigating climate change. Carbon Utilization: CO2 can be utilized to produce valuable chemicals and fuels. For instance, through carbon dioxide catalytic conversion technology, CO2 can be converted into fuels like ethanol. This carbon utilization technology helps reduce reliance on traditional fossil fuels and promotes sustainable energy development. Carbon Dioxide Batteries: These are a new type of battery technology that uses CO2 as the battery's electro material. By converting CO2 into electrical energy, carbon dioxide batteries can serve as a sustainable energy storage solution, promoting the development of electric vehicles and renewable energy. Carbon Dioxide Photocatalysis: This technology uses solar energy to convert CO2 into useful chemicals. By employing photo catalysts, CO2 and water can be transformed into combustible gases or organic compounds, realizing the resource utilization of CO2. These applications aim to reduce CO2 emissions, enhance energy efficiency, and drive sustainable energy development. However, these technologies are still in continuous development and research, requiring further technological breakthroughs and practical verification.

Prior to using the CO2 storage tank, the following preparations must be made: - Inspect the tank: Check for any signs of damage, corrosion, or oil leakage on the tank's exterior, ensuring its structural integrity and safety. - Check valves and pipes: Verify that the tank's inlet and outlet valves and pipe connections are functioning properly, with no leaks or loose fittings, and that valve operation is smooth and reliable. - Inspect safety accessories: Ensure that safety accessories such as safety valves, pressure sensors, and temperature sensors are working correctly and that their set parameters meet requirements. - Check the level measurement system: Confirm the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure precise level readings. - Inspect the pressure relief device: Check that the tank's pressure relief device (e.g., safety valve) is functioning correctly and that its set pressure meets requirements. - Check the gas quality: Ensure the CO2 gas in the tank meets quality standards, with no impurities or contaminants. - Inspect fire protection equipment: Ensure that fire protection equipment around the tank is in good condition and that fire extinguishers, sprinkler systems, etc., are operational. - Train operators: Operators should receive training on the characteristics, operational requirements, and safety measures of the CO2 storage tank. Training should include safe operation, leak handling, and emergency procedures. - These preparations ensure the CO2 storage tank is in good condition before use and guarantees the safety and reliability of operations. Follow relevant safety operating procedures and have personnel handle the preparations.

The internal structure of a carbon dioxide storage tank typically includes the following main components: - Tank Shell: The tank shell is the primary container for storing carbon dioxide, usually made of carbon steel or stainless steel. It has sufficient strength and sealing properties to withstand the pressure and loads within the tank. - Lining Layer: To prevent direct contact between carbon dioxide and the tank shell, avoiding corrosion and contamination, the interior of the tank is usually coated with a lining layer. The lining layer is typically made of corrosion-resistant materials such as glass fiber reinforced plastic or polyester resin. - Support Structure: To support the weight of the tank and maintain stability, a support structure is usually installed within the tank. This can include support legs, frames, etc., to support the bottom and side walls of the tank. - Internal Accessories: The tank is also equipped with some essential accessories, such as level gauges, pressure sensors, temperature sensors, and safety valves. These accessories are used to monitor and control the liquid level, pressure, and temperature within the tank to ensure safe operation. - Pressure Relief Device: To prevent excessive internal pressure, the tank is usually equipped with a pressure relief device, such as a safety valve. When the internal pressure exceeds the set value, the pressure relief device automatically opens to release pressure, protecting the tank's safety. - Inlet and Outlet Pipes: The tank also features inlet and outlet pipes for injecting and discharging carbon dioxide. These pipes are typically connected to external supply or consumption systems to facilitate the storage and use of carbon dioxide. - The above is a general description of the internal structure of a carbon dioxide storage tank. Specific structural design and configurations may vary depending on the tank's purpose and specifications. When using and maintaining the tank, it is necessary to...
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