Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen-nitrogen-aragonite tanks, CO2 tanks, etc.; pressure vessel products like denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment sets, etc.; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Carbon dioxide storage tanks are categorized into various types and structures based on their design and application: - Vertical Tanks: Commonly used carbon dioxide storage tanks, these are cylindrical in shape and vertically positioned. They typically have larger capacities and are used for large-scale storage and supply of carbon dioxide. - Horizontal Tanks: Another common type, these tanks are rectangular or cylindrical in shape and horizontally positioned. They are generally used 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 of carbon dioxide. - Vertical Tanks: Smaller in capacity, these cylindrical tanks are vertically positioned. They are commonly used for small-scale storage and supply, such as for commercial and residential use. - Underground Tanks: A unique structure where the carbon dioxide storage tank is 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 thermal 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, including pressure maintenance systems, leak detection systems, and fire detection systems.

When using CO2 storage tanks, the following safety procedures must be adhered to ensure safety: Tank Operator Training: All operators must receive training to understand the characteristics, operational requirements, and safety measures of CO2 storage tanks. The training should include safe tank operation, leak handling, emergency response plans, etc. Safety Operating Procedures: Establish and comply with relevant safety operating procedures, including start-up, shutdown, inspection, and maintenance of the tank. Operators should operate according to the procedures to ensure safe tank operation. Leak Handling: Establish a leak handling program, including leak detection, emergency shutdown, and isolation of the leak source. Operators should be familiar with the leak handling procedures and able to respond quickly and correctly to leak incidents. Fire Prevention Measures: CO2 is flammable; therefore, fire prevention measures must be observed during use. Smoking, open flames, or flammable materials are prohibited near the tank. Ensure that fire protection equipment around the tank is in good condition and that fire drills are conducted regularly. Waste Gas Emission: Properly discharge waste gases generated during the use of CO2 storage tanks to avoid CO2 accumulation in enclosed spaces, which can lead to asphyxiation and safety risks. Ensure that the waste gas emission system is unobstructed and functioning properly. Regular Inspection and Maintenance: Regularly inspect the tank's exterior, seals, valves, and pipe connections. If any abnormalities or damage are found, they should be repaired or replaced promptly. Additionally, regularly inspect and maintain safety valves, pressure sensors, and other accessories. Emergency Response Plans: Develop and implement emergency response plans, including leak incident handling, evacuation procedures, and first aid measures. Operators should be familiar with the emergency response plans and conduct drills regularly. Monitoring and Alarm Systems: Install and maintain monitoring and alarm systems for the storage tanks.

When handling CO2 storage tanks, static electricity is a safety issue that needs attention. Here are some ways to avoid static electricity: - Grounding: Ensure that the tank and related equipment are properly grounded. Grounding releases static electricity to the ground, reducing the likelihood of static buildup. Use specialized grounding equipment and wires to ensure reliable grounding. - Anti-static Equipment: Use anti-static equipment such as anti-static clothing, shoes, and gloves. These devices help eliminate or reduce static buildup and protect the safety of the operators. - Avoid Friction: Prevent friction during operations, especially when in contact with flammable gases. Friction can generate static electricity, increasing the risk of fire or explosion. - Control Humidity: Maintain a suitable humidity level in the operating environment, as higher humidity can reduce the generation and accumulation of static electricity. Use humidifiers or other humidity control devices to adjust the environmental humidity. - Avoid Plastic or Rubber Materials: Plastic and rubber materials are prone to static electricity, so try to avoid using these materials during operations. Choose materials with better anti-static properties for handling. - Static Eliminators: Use static eliminators to eliminate or reduce static buildup. Static eliminators neutralize static by releasing charges, reducing the danger of static electricity. - Tank Cleaning: Regularly clean the interior of the tank to remove accumulated impurities and dirt. Be cautious to prevent the generation and accumulation of static electricity during the cleaning process. Note that the methods to avoid static electricity should be determined according to the specific operating environment and characteristics of the tank. During operations, follow relevant safety regulations and standards, and consult with experts if necessary.

Installation and operation of low-temperature carbon dioxide storage tanks must comply with the following requirements: Installation Location Selection: When choosing the installation location for the tank, consider its weight and dimensions to ensure a solid and stable foundation. Additionally, keep it away from flammable and 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 regulations and standards. Connection Pipes: Use appropriate connection methods between the tank and pipes to ensure tight and reliable connections with no leaks. The connection pipes should comply with relevant standards and specifications. Pressure Relief Devices: The tank should be equipped with pressure relief devices, such as safety valves, to control internal pressure. The set pressure of the pressure relief devices should meet relevant requirements and be inspected and maintained regularly. Sealability Inspection: Regularly check the tank's sealing performance to ensure no leaks. Pay special attention to the sealing of valves, pipe connections, and the tank itself. Temperature Control: Low-temperature carbon dioxide storage tanks require temperature control 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. Exceeding the rated capacity may cause excessive pressure in the tank, increasing safety risks. Storage
Our company attaches great importance to technological innovation and R&D design. We have 1 municipal-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 instruments and equipment, 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 welding technology for temperature and pressure vessels, emissions reduction for biomass boilers, and waste heat recovery, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. This technology has been appraised as reaching international standards in the field of deep cryogenic container manufacturing at the provincial level. Choose ZJ Special Equipment, and let's create brilliance together!