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 storage tanks, oxygen/nitrogen/argon storage tanks, and CO2 storage tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; as well as central air conditioning and HVAC 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.
In recent years, the surge in the development of low-temperature liquid storage tanks can be attributed to the following factors: 1. Increasing energy demand: With economic growth and population increase, the demand for energy has been rising. Low-temperature liquid storage tanks are primarily used for storing liquid gases (LNG), liquid oxygen (LOX), liquid nitrogen (LIN), and other low-temperature liquid energy sources to meet the growing energy needs. 2. Greenhouse gas emissions reduction: Low-temperature liquid storage tanks can store and transport liquid carbon dioxide (CO2), used in carbon capture and storage (CCS) technology to reduce greenhouse gas emissions. As the focus on environmental protection and climate change grows, the demand for low-temperature liquid storage tanks in the CCS field has also increased correspondingly. 3. Industrial development needs: The application of low-temperature liquid storage tanks in the industrial sector is also on the rise. For instance, in industries such as chemicals, pharmaceuticals, food and beverage, there is a need for storage and transportation of low-temperature liquid raw materials or products, like liquid nitrogen, liquid oxygen, and liquid ethylene. As these industries develop, so does the demand for low-temperature liquid storage tanks. 4. Technological advancement and innovation: In recent years, there have been continuous advancements and innovations in the design, manufacturing, and transportation of low-temperature liquid storage tanks. The application of new materials, optimization of tank structures, and improvements in safety control systems have made these tanks safer and more reliable, further propelling their peak development. In summary, factors such as increasing energy demand, greenhouse gas emissions reduction, industrial development needs, and technological advancement and innovation have collectively driven the peak development of low-temperature liquid storage tanks in recent years. As the relevant industries continue to grow and technology advances, these trends are expected to persist.

Leakage issues in CO2 storage tanks may be caused by the following factors: Material Corrosion: CO2 has some corrosive properties, and long-term contact can lead to corrosion of the tank material. Corrosion can damage the tank's surface protective layer, causing it to lose its seal and leading to leaks. Welding Defects: Welding joints in the tank may have defects such as cracks or gas pockets, which can weaken the strength of the焊接部位, causing leaks. Design Defects: Inadequate design or defects in the tank may also lead to leaks. For example, improperly designed interfaces or unreasonable structural designs can result in leakage problems. Overpressure: If the internal pressure of the tank exceeds its capacity, it may deform or rupture, causing leaks. Temperature Fluctuations: During temperature changes, the thermal expansion and contraction effect in CO2 storage tanks can cause deformation or stress concentration, leading to leaks. Incorrect Operation: Improper operation and maintenance can also cause leaks. For instance, over-tightening valves or improper maintenance measures can reduce the tank's sealing performance. External Damage: External impacts, scratches, or corrosion on the tank can cause surface damage or corrosion, leading to leaks. To avoid leakage issues in CO2 storage tanks, select appropriate materials, reasonable design, and manufacturing processes, and conduct regular inspections and maintenance. Additionally, operators should receive training and adhere to operational procedures to ensure safe tank operation.

The automatic maintenance system for CO2 storage tanks typically includes the following main components: Pressure Maintenance System: Used to monitor and regulate the internal pressure of the tank, ensuring that the CO2 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: Used to monitor and regulate the internal temperature of the tank, ensuring that the CO2 inside stays within an appropriate temperature range. The system includes temperature sensors, control systems, and temperature regulating devices. Level Monitoring System: Used to measure and monitor the liquid level inside the tank, to ensure that the CO2 liquid level inside the tank remains within a safe range. This system can use float level gauges, pressure level gauges, ultrasonic level gauges, etc. Leak Detection System: Used to monitor the leakage conditions of the tank and pipeline systems, to detect and alarm in a timely manner. The system can use gas sensors, liquid sensors, and leak detectors. Fire Detection and Extinguishing System: Used to monitor fire conditions in the storage tank area and take appropriate extinguishing measures. The system includes fire detectors, alarms, and extinguishing equipment. Remote Monitoring and Control System: Used for remote monitoring and control of the tank's operating status and parameters, enabling remote operation and management. This system can be connected via network, providing real-time data and remote control functions. The above are the main components of a general automatic maintenance system for CO2 storage tanks. The specific system configuration and functions can be customized according to the design requirements and application scenarios of the tank. These automatic maintenance systems can enhance the safety, stability, and reliability of the tank, and reduce the need for manual intervention and operational risks.

Carbon dioxide recovery is a technology designed to capture carbon dioxide from industrial emission sources or the atmosphere and store or utilize it to reduce CO2 emissions. Below are some common carbon dioxide recovery techniques: 1. Coal-fired Power Plant CO2 Recovery: In coal-fired power plants, the CO2 produced by burning coal can be captured and recovered. Common methods include carbon capture technologies, which separate CO2 from flue gas and store or utilize it. 2. Industrial Emission Source CO2 Recovery: CO2 produced by many industrial processes can be treated through capture and recovery techniques. For example, CO2 generated during the production processes of steel, cement, and chemical industries can be recovered to reduce emissions. 3. Atmospheric CO2 Capture: CO2 in the atmosphere can also be recovered using direct air capture technologies. This technique uses adsorbents or chemical reactions to capture and separate CO2 from the atmosphere, then store or utilize it. 4. CO2 Utilization: Captured CO2 can be used to produce valuable chemicals and fuels. For instance, through CO2 catalytic conversion technology, CO2 can be converted into fuels like ethanol or chemical raw materials. The development of carbon dioxide recovery technologies aims to reduce greenhouse gas emissions and mitigate climate change. However, these technologies are still in continuous development and research, requiring further technological breakthroughs and practical verification for large-scale application.
Our company attaches great importance to technological innovation and R&D design. We have 1 municipal-level enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 pieces of various equipment such as CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products and technologies 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 projects, Shandong key projects, and Heze City innovative and excellent projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. This technology has been appraised as reaching an international level in deep cryogenic vessel manufacturing after provincial-level scientific and technological achievement identification. Choose Zhongjie Special Equipment, and let's create brilliance together!