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 areas 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. Currently, there are 710 employees, 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 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.
Design requirements for carbon dioxide storage tanks typically include the following aspects: Pressure Vessel Design: Carbon dioxide storage tanks are generally designed as high-pressure vessels capable of withstanding high pressure. The design must comply with relevant standards and regulations, such as Standard GB150 "Steel Pressure Vessels." Material Selection: The choice of materials for the tank should consider the properties of carbon dioxide, such as high pressure, high oxidizing, and corrosive nature. Common materials include carbon steel and stainless steel, with selection based on specific working conditions and requirements. Safety Valve and Pressure Control: The tank should be equipped with a safety valve and pressure control devices to ensure internal pressure remains within a safe range. The safety valve should be selected according to design requirements and should be inspected and tested regularly to ensure proper functioning. Insulation Performance: As carbon dioxide needs to remain in a liquid state at low temperatures, the tank should have good insulation properties to prevent excessive evaporation of liquid carbon dioxide and energy loss. The selection and design of insulation materials and layers should consider working temperature and environmental conditions. Leak Detection and Alarm: The tank should be equipped with leak detection devices and alarm systems, along with corresponding monitoring equipment. These devices can detect leaks in a timely manner and trigger alarms, allowing for appropriate measures to be taken. Structural Strength and Stability: The tank's structural design should have sufficient strength and stability to withstand internal pressure and external loads. The structural design must comply with relevant standards and regulations, such as Standard GB12337 "Design Code for Pressure Vessels." Safe Operation and Maintenance: The tank's design should consider the ease of safe operation and maintenance, such as the placement of manholes, inspection ports, and drain ports.

For the maintenance of CO2 storage tanks, here are some recommended methods: Regular Inspections: Conduct regular checks of the tank's exterior and interior, including inspecting 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's condition and perform repairs or recoating to protect the tank from corrosion. Leak Detection: Regularly perform leak detection to ensure there are no leakage issues. Use gas detectors or leak detectors for testing, or conduct pressure tests to evaluate the tank's sealing performance. Safety Valve Inspection: Regularly check and test the functionality of safety valves to ensure they operate normally under overpressure conditions. Adjust and test according to the specifications and requirements of the safety valves. Pipe and Valve Maintenance: Regularly inspect and maintain the pipes and valves connected to the tank to ensure their proper operation and sealing performance. Clean and lubricate valves, and check for leaks at pipe connections. Documentation: Record the dates, contents, and results of maintenance, establishing a maintenance record for the tank. Retain relevant documents and reports for future reference and review. Please note that for the maintenance of CO2 storage tanks, it is recommended to follow relevant safety operating procedures and standards. If you do not possess the necessary knowledge and experience, it is advisable to consult professionals or manufacturers for maintenance work.

The quality of carbon dioxide storage tanks is related to several factors: - Material Quality: The quality of the material used in the tank directly impacts its corrosion resistance, strength, and sealing performance. Common materials include carbon steel and stainless steel. Choosing high-quality materials can enhance the tank's quality and lifespan. - Manufacturing Process: The manufacturing process significantly affects the tank's quality. The welding, heat treatment, and surface treatment during production should adhere to relevant standards and regulations to ensure structural integrity and performance stability. - Design Specifications: The tank's design must comply with applicable design standards and regulations, such as industry standards. A well-designed tank ensures sufficient strength and safety under normal operating conditions. - Safety Components: Safety components of the tank, like safety valves, pressure sensors, and temperature sensors, play a crucial role in the tank's quality and safety. Selecting high-quality components and proper installation and tuning can improve the tank's quality and safety. - Inspection and Testing: Inspections and tests are required during the manufacturing process, including material inspection, weld testing, and pressure testing. These ensure the tank meets quality requirements and safety standards. - Use and Maintenance: The tank's use and maintenance also influence its quality. Correct usage and regular maintenance can extend the tank's lifespan and maintain its good working condition. -In summary, the quality of carbon dioxide storage tanks is affected by various factors, including material quality, manufacturing process, design specifications, safety components, inspections and testing, and use and maintenance. When selecting and using tanks, attention should be given to these factors to ensure quality and safety.

Construction features of carbon dioxide storage tanks mainly include the following aspects: Material selection: Carbon dioxide storage tanks are typically made of carbon steel or stainless steel to ensure their corrosion resistance and pressure resistance. Welding process: The welding process of the tank is crucial for its quality and safety. The welding process should comply with relevant standards and specifications to ensure the quality and strength of the welds. Corrosion prevention measures: As carbon dioxide is corrosive, both the internal and external surfaces of the tank should be treated with corrosion prevention. Common measures include spraying corrosion-resistant paint, applying a corrosion-resistant coating, or using corrosion-resistant coatings. Safety valves and pressure sensors: The tank should be equipped with safety valves and pressure sensors to monitor and control the internal pressure of the tank, ensuring safe operation. Steps for correctly installing a carbon dioxide storage tank are as follows: Site preparation: Select an appropriate site for installation, ensuring the site is level, stable, and meets safety distance requirements. Clear the site, ensuring there are no obstructions or fire sources. Foundation construction: Construct the foundation based on the size and weight of the tank. The foundation should have sufficient strength and stability to support the weight and pressure of the tank. Tank installation: Place the tank on the foundation, ensuring there is proper padding and fastening between the tank and the foundation. Connect and secure the tank according to its design requirements. Piping connection: Connect the tank to the piping system as needed. Ensure good sealing at the connection points to prevent leaks. Safety equipment installation: Install the required safety equipment for the tank, such as safety valves, pressure sensors, and temperature sensors. Ensure these facilities are correctly installed and connected.
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