Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic 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-freezing 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 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, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
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-bearing performance. Welding technology: 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: Due to the corrosive nature of carbon dioxide, both the internal and external surfaces of the tank should be treated for corrosion prevention. Common measures include applying anti-corrosion paint, coating with anti-corrosion layers, or using anti-corrosion coatings. Safety valves and pressure sensors: The tank should be equipped with safety valves and pressure sensors for monitoring and controlling the internal pressure of the tank to ensure safe operation. Proper installation steps for carbon dioxide storage tanks are as follows: Site preparation: Select a suitable site for installation, ensuring it is level, stable, and meets safety distance requirements. Clear the site to ensure there are no obstructions or fire sources. Foundation construction: Construct the foundation according to the size and weight of the tank. The foundation should have sufficient strength and stability to support the tank's weight and pressure. Tank installation: Place the tank on the foundation, ensuring there are appropriate bedding and fastening devices between the tank and the foundation. Connect and secure the tank according to its design requirements. Piping connections: Connect the tank to the piping system as needed. Ensure the seals at the connection points are tight to prevent leaks. Safety equipment installation: Install the necessary safety equipment for the tank, such as safety valves, pressure sensors, temperature sensors, etc. Ensure these devices are properly installed and connected.

To extend the service life of CO2 storage tanks, the following measures can be taken: - Regular Inspections and Maintenance: Conduct regular checks on the tank's exterior, inner lining, valves, and pipe connections to ensure they are intact. Promptly repair or replace any abnormalities or damages found. - Corrosion Prevention: As CO2 is corrosive, both the interior and exterior of the tank should be treated for corrosion resistance. Regularly inspect and maintain the integrity and effectiveness of the corrosion-resistant layer or coating. - Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the liquid and gas impurities from the tank to maintain cleanliness and proper operation. - Temperature and Pressure Control: Maintain the tank's temperature and pressure within the design limits to avoid damage from extreme temperatures or pressures. - Regular Testing and Calibration: Conduct regular testing and calibration of the tank, including parameters such as level, pressure, and temperature, to ensure accurate and reliable measurement and control systems. - Adherence to Operating Procedures: Strictly follow operating procedures and safety protocols to ensure the tank operates normally and safely. Train operators to enhance their operational skills and safety awareness. - Updates and Upgrades: Timely update and upgrade tank components and equipment as needed to adapt to new technology and safety requirements. - Regular Assessment and Monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion, and safety aspects. Take appropriate maintenance and repair measures based on assessment results. These measures can help extend the service life of CO2 storage tanks and ensure their safe and reliable operation.

Additionally, the use of liquid carbon dioxide tanks must adhere to specific industry standards and regulations based on the particular industry and application scenario. For instance, when using liquid carbon dioxide tanks in the food and beverage industry, relevant food safety and hygiene standards must be followed. It's important to note that different regions may have varying standards and regulations for the use of liquid carbon dioxide tanks. Therefore, operations and usage should be conducted in accordance with local laws and standards.

Leakage issues in CO2 storage tanks may be caused by the following reasons: Material Corrosion: CO2 has a certain degree of corrosiveness, and long-term contact may lead to corrosion of the tank material. Corrosion can damage the tank's surface protective layer, causing it to lose its seal and lead to leakage. Welding Defects: The welding joints of the tank may have defects, such as cracks in the welds or blowholes, which can weaken the strength of the welded areas and cause leakage. Design Defects: Inadequate design or defects in the tank may also result in leakage. For example, improperly designed interfaces or unreasonable structural designs can lead to leakage problems in the tank. Overpressure: If the internal pressure of the tank exceeds its capacity, it may cause deformation or破裂, leading to leakage. Temperature Fluctuations: During temperature changes, the thermal expansion and contraction effect on CO2 storage tanks may cause deformation or stress concentration, leading to leakage. Incorrect Operation: Improper operation and maintenance may also cause leakage in the tank. For instance, over-tightening valves or improper maintenance measures can reduce the tank's sealing performance. External Damage: External forces such as impacts, scratches, or corrosion on the tank may cause surface damage or corrosion, leading to leakage. To avoid leakage issues in CO2 storage tanks, it is essential to select appropriate materials, adopt reasonable design and manufacturing processes, and conduct regular inspections and maintenance. Additionally, operators should receive training and adhere to operational procedures to ensure the safe operation of the tank.
Zhongjie Special Equipment adheres to the great vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," devoting itself to the development of green energy equipment. We offer the society products and services with high performance at a reasonable price!