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 area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, including 247 engineering and technical staff 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 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.
For the maintenance of CO2 storage tanks, here are some recommended methods: - Regular Inspections: Conduct regular checks on the tank's exterior and interior for corrosion, cracks, and leaks. Non-destructive testing methods, such as ultrasonic testing, can be used to assess the tank's integrity. - Cleaning and Corrosion Protection: Regularly clean the tank's exterior to remove dirt and debris. For tanks coated with corrosion-resistant paint, regularly inspect the coating condition and repair or recoat as needed to protect against corrosion. - Leak Detection: Regularly perform leak detection to ensure there are no leakage issues. Gas detectors or leak detectors can be used for the test, or pressure tests can be conducted to evaluate the tank's sealing performance. - Safety Valve Inspection: Regularly check and test the operation of safety valves to ensure they function properly under overpressure conditions. Adjust and test according to the specifications and requirements of the safety valves. - Pipeline and Valve Maintenance: Regularly inspect and maintain the pipelines and valves connected to the tank to ensure their proper operation and sealing performance. Clean and lubricate valves, and check for leaks at pipeline connections. - Record Keeping and Documentation: Document the dates, contents, and results of maintenance, establishing a maintenance record for the tank. Retain relevant documents and reports for future reference and review. - Note that for the maintenance of CO2 storage tanks, it is recommended to follow relevant safety operation procedures and standards. If you lack the necessary knowledge and experience, it is advisable to consult personnel or manufacturers for maintenance work.

If a leak in the CO2 storage tank is detected, the following steps should be taken immediately: Confirm the leak location: First, identify the exact location of the leak, which can be done through hearing, observation, or using gas detection equipment. Emergency response: In case of a leak, implement emergency measures immediately to ensure personnel safety. Evacuate people to a safe area and notify relevant personnel and emergency agencies. Cut off the gas source: Quickly shut off the CO2 supply source by closing valves or cutting off power to stop the supply. Locate the leak: In a safe environment, use gas detection equipment or visual inspection to find the leak. Apply soapy water or other leak detection agents to potential leak areas and observe for bubbles. Seal the leak: Once the leak location is identified, take temporary sealing measures using tape, sealant, or other reliable sealing materials for temporary repair. Ensure the sealing is secure and effective in preventing gas leakage. Repair and maintenance: In a safe environment, conduct further repair and maintenance as necessary. Depending on the nature of the leak, it may be required to replace gaskets, repair or replace valves, etc. Repair and maintenance should be performed by qualified personnel. Inspection and testing: After repairs, conduct leak detection and testing to ensure the leak has been fully repaired and the tank's safety performance has returned to normal. It is important to handle CO2 storage tank leak issues with caution and follow relevant safety regulations and procedures. If you lack the necessary knowledge and skills, contact a professional for assistance.

The primary reason for pre-cooling a carbon dioxide tank before use is to ensure that the carbon dioxide inside 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 keep the tank pressure stable. By pre-cooling, the liquid state of the carbon dioxide inside the tank can be ensured, preventing 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, relevant safety operation procedures and standards should be followed to ensure the safety and effectiveness of the operation.

Carbon dioxide storage tanks are equipment used for storing and transporting carbon dioxide (CO2). They are typically sealed containers with specialized design and structure to ensure safe storage and usage of CO2. Here are some common details about carbon dioxide storage tanks: Storage Form: CO2 is a gas at room temperature but can be compressed into a liquid under high pressure for easier storage and transport. Storage tanks for CO2 usually hold liquid CO2. Storage Pressure: These tanks commonly store high-pressure CO2 at around 20-25 bar, which helps maintain the liquid state. Storage Capacity: The capacity of CO2 storage tanks can vary from small ones with a few thousand liters to large ones with tens of thousands of liters, depending on specific application needs. Safety: CO2 is colorless, odorless, and non-toxic, but it can be dangerous at high concentrations, causing asphyxiation. Appropriate safety measures, such as ventilation and protective gear, are necessary when using CO2 storage tanks to ensure the safety of operators. Application Areas: Carbon dioxide storage tanks are widely used in various fields, including the food and beverage industry, manufacturing, fire suppression, and gas supply. They store and supply CO2 to meet various industrial needs. It is important to note that the design, manufacturing, and use of CO2 storage tanks must comply with relevant regulations, standards, and safety requirements. Operators should follow the manual and safety guidelines, and collaborate with local regulatory authorities to ensure the safety and reliability of the tanks.
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