Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as equipment and machinery installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a director unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
The automated maintenance system for carbon dioxide tanks typically includes the following main components: - Pressure Maintenance System: Monitors and adjusts the internal pressure of the tank to ensure that the carbon dioxide inside remains within a safe and stable pressure range. This system includes pressure sensors, control systems, pressure regulating valves, and pressure reserve devices. - Temperature Control System: Monitors and adjusts the internal temperature of the tank to keep the carbon dioxide within an appropriate temperature range. The system includes temperature sensors, control systems, and temperature regulating devices. - Level Monitoring System: Measures and monitors the liquid level inside the tank to ensure the carbon dioxide level is within a safe range. This system can use float level gauges, pressure level gauges, and ultrasonic level gauges. - Leak Detection System: Monitors for leaks in the tank and pipeline systems, enabling timely detection and alarms. The system can utilize gas sensors, liquid sensors, and leak detectors. - Fire Detection and Extinguishing System: Monitors for fire conditions in the tank area and takes appropriate extinguishing measures. The system includes fire detectors, alarms, and extinguishing equipment. - Remote Monitoring and Control System: Allows for remote monitoring and control of the tank's operational status and parameters, enabling remote operation and management. The system can connect via network to provide real-time data and remote control functions. The above are the main components of a typical automated maintenance system for carbon dioxide tanks. Specific system configurations and functions can be customized according to the tank's design requirements and application scenarios. These automated maintenance systems enhance the tank's safety, stability, and reliability, reducing the need for manual intervention and operational risks.

Installation and operation of low-temperature CO2 storage tanks must comply with the following requirements: Installation Location Selection: When choosing the installation site for the tank, consider the tank's weight and dimensions to ensure a solid and stable foundation. Also, keep it away from flammable or explosive materials and high-temperature sources to ensure safety. Safety Distance: Maintain a certain safety distance around the tank for daily inspections, maintenance, and emergency response. The safety distance should meet relevant safety specifications and standards. Connecting Pipes: Use appropriate connection methods between the tank and pipes to ensure tight and reliable connections with no leaks. The connecting pipes should meet relevant standards and specifications. Pressure Relief Device: The tank should be equipped with a pressure relief device, such as a safety valve, to control internal tank pressure. The set pressure of the pressure relief device should meet relevant requirements and be checked and maintained regularly. Sealability Inspection: Regularly inspect the tank's sealing performance to ensure there are no leaks. Pay special attention to the seals at valve and pipe connections and the tank itself. Temperature Control: Temperature control is required for low-temperature CO2 storage tanks to maintain the internal low-temperature state. Ensure the surrounding environmental temperature is suitable and take appropriate insulation measures. Safety Protection: Set up appropriate safety protection facilities around the tank, such as guardrails and warning signs, to remind personnel of safety and prevent unauthorized access to the tank. Storage Capacity Control: Control the storage capacity of the tank according to actual needs to avoid exceeding the rated capacity. Overfilling may lead to excessive pressure in the tank, increasing safety risks. Storage

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 protection measures: Due to the corrosive nature of carbon dioxide, both the internal and external surfaces of the tank should be treated with corrosion protection. Common corrosion protection measures include applying anti-corrosion paint, coating with a corrosion-resistant layer, or using anti-corrosion 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 the correct installation of a carbon dioxide storage tank are as follows: Site preparation: Select an appropriate site for installation, ensuring it is level, stable, and meets safety distance requirements. Clean the site to ensure there are no obstacles 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 weight and pressure of the tank. Tank installation: Place the tank on the foundation, ensuring there is adequate bedding and fastening devices between the tank and the foundation. Connect and secure the tank according to its design requirements. Pipe connection: Connect the tank to the piping system as needed. Ensure that the connections are sealed properly 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 devices are properly installed and connected.

The testing and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation and extending their service life. Below is a general outline of the testing and maintenance procedures for liquid oxygen storage tanks: - Visual Inspection: Regularly inspect the exterior of liquid oxygen storage tanks for corrosion, wear, and cracks. Address any anomalies promptly by repairing or replacing affected parts. - Internal Cleaning: Periodically clean the interior of liquid oxygen storage tanks to remove accumulated impurities and dirt. Use appropriate cleaning agents and tools to avoid damaging the tank. - Level Measurement: Regularly measure the liquid level within the storage tank to ensure it remains within safe limits. Utilize level gauges or other measuring equipment, and record the results. - Pressure Testing: Conduct regular pressure tests to verify the tank's pressure resistance. Pay attention to controlling pressure and time during testing to ensure safety and accuracy. - Leak Detection: Regularly perform leak detection to ensure the tank's sealing integrity. Use leak detection equipment such as gas detectors or foam leak detectors. - Valve and Pipeline Inspection: Regularly check the valves and pipeline connections of the liquid oxygen storage tank to ensure proper sealing and no leakage. Address any issues by repairing or replacing as necessary. - Maintenance Records: Document the testing and maintenance activities for liquid oxygen storage tanks, including dates, inspection items, and results. Records help track maintenance history and issue resolution. - Scheduled Maintenance: Develop a regular maintenance plan based on the tank's usage and requirements. Maintenance tasks include lubrication, bolt tightening, and replacing seals to ensure normal operation.
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