Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
A Carbon Dioxide Storage Tank Pressure Maintenance System is a system designed to maintain the internal pressure of a carbon dioxide storage tank. Since carbon dioxide is a gas at room temperature, it must be compressed into a liquid state for storage to increase density. The primary function of the pressure maintenance system is to monitor and adjust the internal pressure of the tank, ensuring that the carbon dioxide 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 system based on pre-set pressure ranges. When the pressure inside the tank exceeds or falls below the set range, the control system triggers corresponding 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, increasing the pressure. - Pressure Storage Device: Usually a pressure vessel used to store additional gas for providing extra pressure support as needed. When the pressure inside the tank drops, the storage device releases gas to maintain the tank's pressure. Through the coordinated work of these components, the Carbon Dioxide 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.

Carbon dioxide tanks are widely used in many industries. Below are some common sectors with examples of their use of carbon dioxide tanks: - Beverage and Food Industry: Carbon dioxide is used as a carbonating agent for beverages and food, such as soda, beer, and soft drinks. Tanks are used for storing and supplying carbon dioxide to meet production line needs. - Industry: Carbon dioxide has various applications in the industry, including anesthesia, respiration, and tissue freezing. Tanks are used for storing and supplying medical-grade carbon dioxide to meet facility requirements. - Fire Suppression: Carbon dioxide is extensively used in fire suppression systems, particularly in electrical and sensitive equipment extinguishing. Tanks are used for storing and supplying fire suppression carbon dioxide. - 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 to supply the carbon dioxide needed in 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 automotive manufacturing and repair needs. These are just some common industry examples. In reality, carbon dioxide tanks have wide applications in many other sectors, such as chemicals and frozen food industries. Specific applications will vary based on industry needs and application scenarios.

Detailed specifications for carbon dioxide tanks can vary based on specific design and usage requirements. Here are some common parameters for carbon dioxide tanks: - Capacity: The capacity of carbon dioxide tanks can differ according to needs, ranging commonly from a few thousand to tens of thousands of liters. - Pressure: The design working pressure for carbon dioxide tanks typically falls between 15-25 MPa (Megapascals), with the specific pressure depending on the application scenario and requirements. - Material: Carbon dioxide tanks are usually made of high-strength materials like carbon steel or stainless steel. The choice of material depends on the storage environment and requirements. - Dimensions: The external dimensions of carbon dioxide tanks also vary based on capacity and design. Common shapes include cylindrical, spherical, or cuboid. - Level Control: Carbon dioxide tanks usually come with level control systems for monitoring and controlling the liquid level of carbon dioxide. These systems typically include level sensors and control valves. - Pressure Control: Internal pressure control systems are often installed in carbon dioxide tanks to monitor and control the gas pressure within. These systems commonly include pressure sensors and safety valves. It should be noted that specific parameters for carbon dioxide tanks can vary among manufacturers, application scenarios, and standards. When selecting and using carbon dioxide tanks, it is important to follow relevant safety operation procedures and guidelines, and consult with experts to obtain accurate parameter information.

Under China's "Regulations for Safety Supervision of Pressure Vessel Technologies," carbon dioxide storage tanks are classified as Category II pressure vessels. According to these regulations, pressure vessels are categorized as follows: - Category I pressure vessels: Pressure vessels with working pressures of 10 MPa (megapascals) or more, such as steam boilers and pressure vessels. - Category II pressure vessels: Pressure vessels with working pressures between 0.1 MPa and 10 MPa, such as air compressors and liquefied gas storage tanks. - Category III pressure vessels: Pressure vessels with working pressures between 0.05 MPa and 0.1 MPa, such as storage tanks. - Category IV pressure vessels: Pressure vessels with working pressures less than 0.05 MPa, such as gas cylinders. Based on this classification, carbon dioxide storage tanks typically have working pressures above 0.1 MPa, thus falling under Category II pressure vessels. It is important to note that specific classification criteria may vary due to different regional regulations and standards. When using and managing carbon dioxide storage tanks, it is necessary to comply with the corresponding regulatory and standard requirements.
Our company places great importance on technological innovation and R&D design. We have one city-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. We have over 600 various equipment and instruments, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, etc. The key products we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology Science and Technology Innovation Projects, Shandong Provincial Key Projects, and Heze City Innovation and Excellence Projects. We have accumulated 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + filler wire tungsten inert gas arc combination welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement identification, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!