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, a B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as a mechanical and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council unit of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
A Carbon Dioxide Storage Tank Pressure Maintenance System is a system designed to maintain the internal pressure of a CO2 storage tank. Since CO2 is a gas at room temperature, it needs to be compressed into a liquid state for storage to increase density. The primary function of the pressure maintenance system is to monitor and regulate the internal pressure of the tank, ensuring the CO2 remains within a safe and stable pressure range. The system typically consists of the following components: - Pressure Sensors: Installed inside the tank, these sensors monitor the pressure in real-time and transmit pressure signals to the control system. - Control System: Receives signals from the pressure sensors and controls the tank pressure within a preset range. When the pressure inside the tank exceeds or falls below the set range, the control system triggers the appropriate control measures. - Pressure Regulating Valve: Adjusts the pressure inside the tank according to the control system's instructions. When pressure is too high, the valve opens to release some gas to lower the pressure. When pressure is too low, the valve closes to prevent further gas release and increase pressure. - Pressure Reserve Device: Usually a pressure vessel used to store additional gas for providing extra pressure support as needed. When the tank's pressure drops, the reserve device releases gas to maintain the internal pressure. Through the coordinated work of these components, the CO2 Storage Tank Pressure Maintenance System ensures that the pressure inside the tank remains within a safe and stable range, which is crucial for the normal operation and safety of the tank.

Daily inspections and maintenance of CO2 storage tanks can be carried out following these steps: - **Visual Inspection:** Check for any obvious damage, corrosion, or oil leakage on the tank's exterior. Pay attention to the tank shell, valves, and pipe connections for any anomalies. - **Internal Inspection:** If access is permitted, conduct an internal check. Inspect the lining, valves, and pipes for corrosion, scale buildup, or blockages. - **Valve and Pipe Inspection:** Check the tank's inlets and outlets, as well as pipe connections, for proper operation and for any leaks or loose fittings. Ensure valves are operable and reliable. - **Pressure Relief Device Inspection:** Verify that the tank's pressure relief devices (e.g., safety valves) are functioning correctly. Confirm that the set pressure of the relief devices meets requirements. - **Measurement and Control System Inspection:** Check that the tank's level, pressure, and temperature measurement and control systems are operating properly. Calibrate and test the accuracy of measuring equipment. - **Cleaning and Drainage:** Regularly clean the tank's interior to remove accumulated impurities and sediment. Also, periodically drain the tank to remove liquid and gas impurities. - **Maintenance and Repair:** Based on inspection results, perform necessary maintenance and repair work. Repair damaged components, replace worn-out seals, etc., to ensure normal operation of the tank. - **Documentation and Reporting:** Document the inspection and maintenance process, including dates, contents of the inspection, identified issues, and actions taken. Submit inspection reports to relevant departments or management as needed. - The above steps are general guidelines for daily inspections and maintenance of CO2 storage tanks. Specific procedures should be tailored to the tank's characteristics and requirements. When conducting inspections and maintenance, follow relevant safety operating procedures and have personnel handle operations.

Carbon dioxide storage tanks possess the following safety technical characteristics: - High-strength materials: These tanks are typically made from high-strength steel or alloy materials to withstand stresses and loads under high pressure and low-temperature conditions. - Safety valves and pressure relief devices: Equipped with safety valves and pressure relief devices to control internal tank pressure and prevent overpressure and explosions. The safety valve automatically opens to release pressure when the internal pressure exceeds the set value. - Insulation layer: An internal insulation layer is present to reduce heat conduction and liquid evaporation. The insulation layer usually features a multi-layer structure, including thermal insulation materials and an external protective layer, to maintain stable internal temperatures. - Level monitoring and control: The tank is fitted with level monitoring devices to monitor internal liquid levels. Timely monitoring and control ensure that the liquid stored within the tank remains within a safe range. - Fire and explosion prevention measures: The tank is equipped with fire and explosion prevention measures, such as fire-resistant coatings, fire-isolation zones, and explosion-proof devices, to prevent fires and explosions. - Leak detection and alarm system: The tank is fitted with a leak detection and alarm system to promptly detect and alert of any leakage. Quick response and handling can reduce the safety risks caused by leaks. - Regular inspections and maintenance: Tanks require regular inspections and maintenance, including visual inspections, valve maintenance, and pressure testing, to ensure safety and reliability. It should be noted that the specific safety technical characteristics of carbon dioxide storage tanks may vary depending on the type and application of the tank. When using a carbon dioxide storage tank, it is essential to follow relevant regulations and guidelines.

Carbon dioxide storage tanks feature the following characteristics: High-pressure Storage: These tanks are commonly used for high-pressure storage and can withstand significant pressure. The carbon dioxide inside the tank exists in a gaseous or liquid state, with pressures typically ranging from several tens to hundreds of MPa. High-density Storage: When stored in a liquid state, carbon dioxide has a higher storage density, allowing for more CO2 to be stored in a smaller tank compared to gaseous storage, thereby improving efficiency. Corrosiveness: Carbon dioxide has some corrosive properties, which can erode certain materials. Therefore, storage tanks are usually made of corrosion-resistant materials like stainless steel or alloy steel to ensure durability and safety. Temperature Sensitivity: Carbon dioxide is in a gaseous state at room temperature but can become liquid at lower temperatures. Thus, storage tanks often require insulation to maintain a低温 interior. Safety Protection: Storage tanks are equipped with safety valves and pressure relief devices to control internal pressure and temperature, ensuring the safety of the storage process. Additionally, they must have good sealing properties to prevent leaks. Wide Application: Carbon dioxide storage tanks are widely used in various industries, including food and beverage, pharmaceutical, and chemical industries. They can be used for freezing food, refrigeration equipment, and gas supply, meeting diverse industrial needs. In summary, carbon dioxide storage tanks have features such as high-pressure storage, high-density storage, corrosiveness, temperature sensitivity, safety protection, and wide application. These features make them essential equipment for storing and using carbon dioxide in many industries.
ZJ Special Equipment adheres to the grand vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," wholeheartedly devoting itself to the development of green energy equipment. We offer society high-quality and cost-effective products and services!