Shandong Zhongjie Special Equipment Co., Ltd. (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-freezing containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three manufacturing 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 staff, 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 of Shandong Province" by the Industry and Information Technology Department. In June 2022, it was recognized as a "Gazelle Enterprise of Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Carbon dioxide tanks are widely used in various industries. Below are some common industries and examples of using carbon dioxide tanks: - Beverage and Food Industry: Carbon dioxide is used as a carbonating agent for beverages and food, for the production of soft drinks, beer, and other carbonated drinks. Tanks are used for storing and supplying carbon dioxide to meet production line needs. - Industry: Carbon dioxide has multiple applications in industry, such as anesthesia, respiration, and tissue freezing. Tanks are used for storing and supplying medical-grade carbon dioxide to meet facility requirements. - Fire Extinguishing: Carbon dioxide is extensively used in fire suppression systems, particularly for electrical and sensitive equipment. Tanks are used for storing and supplying carbon dioxide for fire extinguishing purposes. - Gas Industry: Carbon dioxide is also a significant product in the gas industry, used in the production of chemicals, metal processing, welding, and gas protection. Tanks are used for storing and supplying industrial-grade carbon dioxide. - Greenhouse Agriculture: Carbon dioxide can be used to promote plant growth in greenhouses, providing additional carbon dioxide concentration. Tanks are used for supplying the required carbon dioxide for greenhouses. - Automotive Industry: Carbon dioxide is used for tire inflation and airbag systems in cars. Tanks are used for storing and supplying carbon dioxide to meet the needs of car manufacturing and maintenance. These are just some common industry examples. In reality, carbon dioxide tanks are also widely used in many other industries, such as chemicals and frozen food processing. Specific uses may vary according to industry needs and application scenarios.

Carbon dioxide storage tanks can be categorized into various types and structures based on their design and usage: - Vertical Tanks: Commonly used carbon dioxide storage tanks, shaped as cylinders and placed vertically. These tanks typically have larger capacities and are used for large-scale storage and supply. - Horizontal Tanks: Another common type, shaped as rectangles or cylinders and placed horizontally. Horizontal tanks are usually for smaller-scale storage and supply, suitable for limited spaces. - Spherical Tanks: A specialized type of carbon dioxide storage tank with a spherical shape. These tanks have high strength and pressure-bearing capacity, suitable for high-pressure storage and transportation. - Vertical Tanks (Small Capacity): Smaller capacity carbon dioxide storage tanks, shaped as cylinders and placed vertically. They are typically used for small-scale storage and supply, such as for commercial and residential use. - Underground Tanks: A special structure where carbon dioxide storage tanks are buried underground. These tanks save space, reduce visual impact, and offer enhanced safety and environmental protection. These tanks are usually constructed from pressure-resistant materials (like carbon steel or stainless steel) with certain insulation properties and accessories such as safety valves, pressure gauges, and level indicators. The interior often features baffles or partitions to separate different liquids or gases. Additionally, the tanks are equipped with safety systems like pressure maintenance systems, leak detection systems, and fire detection systems.

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: Regular Inspections: Conduct regular checks of the tank's exterior, internal lining, valves, and pipeline connections. Pay attention to signs of corrosion, cracks, or oil leaks. Cleaning and Draining: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities. Corrosion Prevention: The exterior and internal lining of low-temperature liquid storage tanks should be treated for corrosion resistance. Regularly inspect and maintain the corrosion-resistant layer or coating to ensure its integrity and effectiveness. Temperature and Pressure Control: The temperature and pressure of the low-temperature liquid storage tank should be controlled within the design limits. Avoid excessive or low temperatures and pressures that could damage the tank. Safety Equipment Checks: Inspect the tank's safety equipment, such as safety valves, pressure sensors, and temperature sensors, to ensure they are functioning properly. Verify that their set parameters meet requirements. Maintenance of Level Measurement System: Regularly inspect and calibrate the level measurement system to ensure accuracy and reliability. Clean or replace level sensors as needed. Fire Prevention Measures: Fire prevention measures for low-temperature liquid storage tanks are crucial. Ensure that fire protection facilities around the tank are in good condition and conduct fire drills regularly. Regular Assessments 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. Operator Training: Operators should receive training to understand the characteristics, operational requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency response procedures.

CO2 Storage Tank Commissioning typically involves the following steps and contents: - Tank Installation Check: Inspect the tank's installation location, foundation, and support structure to ensure they meet design requirements, guaranteeing the tank's stability and safety. - Pipe Connection Check: Verify the tank's connections to inlet and outlet pipes are secure, and that valves and pipes are functioning properly for opening and closing, ensuring the integrity and proper operation of the piping system. - Tank Cleaning and Emptying: Prior to commissioning, clean and empty the tank to ensure no impurities or residues are present inside, as well as no other gases or liquids. - Tank Pressure Testing: Conduct pressure tests on the tank, including static pressure tests and leak tests. The static pressure test involves increasing pressure to check the tank's sealing and pressure resistance. The leak test checks for any leakage in the tank and piping system. - Control System Commissioning: Calibrate and adjust the tank's control system, including pressure, temperature, and level sensors, to ensure accuracy and reliability of the control system. - Safety System Testing: Test the tank's safety system, including the functionality of safety valves, pressure gauges, and level indicators, to ensure proper operation and responsiveness of the safety system. - Operating Parameter Adjustment: Adjust the tank's operating parameters, such as pressure, temperature, and level, according to actual needs and process requirements, to meet process specifications and safe operation. - Documentation and Reporting: Record and organize data, test results, and operational logs during commissioning, generating a commissioning report for future reference and management. - The above steps and contents are general for CO2 storage tank commissioning, and specific commissioning activities may vary depending on tank design requirements and application scenarios. During commissioning, strictly adhere to relevant safety operation procedures and standards to ensure safety and effectiveness of the commissioning process.
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