Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license and 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 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 council member 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 U.S. ASME/U2 certification.
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 an appropriate connection method between the tank and the pipes to ensure tight and reliable connections with no leaks. The connection pipes should comply with relevant standards and regulations. 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 checked and maintained regularly. Sealability Inspection: Regularly inspect the tank's sealing performance to ensure no leaks. Pay special attention to the valves, pipe connections, and the tank's own sealability. Temperature Control: Low-temperature carbon dioxide storage tanks require temperature control to maintain the low internal temperature. 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

Carbon dioxide storage tanks possess several features: - High-pressure Storage: These tanks are typically used for high-pressure storage and can withstand significant pressure. The CO2 inside the tank exists in a gaseous or liquid state, with pressures usually ranging from tens to hundreds of MPa (megapascals). - High-Density Storage: When stored in a liquid state, CO2 has a higher storage density, allowing for more CO2 to be stored in a smaller tank compared to gaseous storage, thereby improving storage efficiency. - Corrosiveness: CO2 has some corrosive properties and can erode certain materials. Therefore, storage tanks are usually made from corrosion-resistant materials like stainless steel or alloy steel to ensure durability and safety. - Temperature Sensitivity: CO2 is in a gaseous state at room temperature but can turn into a liquid at lower temperatures. Thus, storage tanks often require insulating properties to maintain low internal temperatures. - Safety Protection: The tanks are equipped with safety valves and pressure relief devices to control internal pressure and temperature for safe storage. Additionally, they must have good sealing performance to prevent leaks. - Wide Application: Carbon dioxide storage tanks are widely used in various industries, including food and beverage, pharmaceutical, and chemical sectors. They can be used for freezing food, refrigeration equipment, gas supply, and more, catering to diverse needs. - In summary, carbon dioxide storage tanks feature high-pressure and high-density storage, corrosiveness, temperature sensitivity, safety protection, and wide application. These characteristics make them essential equipment for storing and using CO2 in many industries.

When storing carbon dioxide tanks, the following requirements must be adhered to ensure safety and effectiveness: Ventilation: Tanks should be stored in well-ventilated areas to avoid the accumulation of carbon dioxide gas. Ensure there is sufficient air circulation around the tank to prevent gas buildup and asphyxiation risks. Fire and Explosion Prevention: Keep tanks away from ignition sources, high-temperature areas, and flammable materials. Avoid open flame operations near the tank to prevent fire and explosion risks. Sunlight Protection: Store tanks in locations shielded from direct sunlight to prevent overheating and pressure increase. Direct sunlight can raise tank temperatures, increasing the risk of leaks and explosions. Mechanical Damage Avoidance: Keep tanks away from machinery and heavy objects to prevent collisions and damage. Mechanical damage can lead to tank leaks or ruptures, causing safety hazards. Identification and Warning Signs: Clearly mark tanks with information such as the type of gas stored and pressure. Set up warning signs around the tanks to remind personnel of their presence and related safety precautions. Regular Inspections: Conduct regular inspections of the tank's exterior, valves, and connections to ensure they are intact. Take prompt corrective actions if any abnormalities are found. Storage Capacity Control: Control the storage capacity of the tank to prevent exceeding the rated capacity. Overfilling can lead to excessive tank pressure and increased safety risks. Storage Records: Keep records of the tank's usage, including filling dates, quantities, and inspection records. Regularly perform tank inspections and maintenance, and retain relevant records. It is important to note that specific storage requirements may vary depending on the tank type and application. When storing carbon dioxide tanks, operate according to relevant regulations and standards and consult with experts to ensure safety and effectiveness.

When using CO2 storage tanks, the following points should be taken into consideration: - Safe Operation: When using CO2 storage tanks, it is mandatory to adhere to relevant safety operation procedures and standards. Operators should receive training to understand the tank's characteristics, operational requirements, and safety measures, and operate strictly according to the procedures. - Tank Inspection: Regularly inspect the tank's appearance, seals, valves, and pipeline connections to ensure the tank's integrity and safety. Any abnormalities or damages should be repaired or replaced promptly. - Tank Pressure Control: The tank's pressure should be maintained within a safe range. Regularly check and calibrate pressure sensors, safety valves, etc., to ensure the normal operation of the pressure control system. - Temperature Control: CO2 storage tanks typically need to be kept at low temperatures. Ensure the proper operation of cooling equipment, regularly check and calibrate temperature sensors to maintain appropriate storage temperatures. - Leak Protection: CO2 is a gas that is prone to leakage, which can lead to safety risks and environmental pollution. Ensure the tank and pipeline seals are intact, regularly inspect and replace seals, and promptly address any leakage issues. - Fire and Explosion Prevention: Avoid open flame operations near the tank to prevent fire sources from coming into contact with CO2. Maintain good ventilation around the tank to prevent CO2 accumulation. - Waste Disposal: Disposed CO2 storage tanks or residues should be handled in accordance with relevant regulations and standards. Adhere to environmental protection requirements to ensure the safe disposal of waste and environmental protection. - Regular Maintenance: Regularly maintain and inspect the tank, including cleaning and painting.
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 types of 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, and more. The key products we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat recovery, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have accumulated a total of 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 of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After being appraised as a provincial-level scientific and technological achievement, our technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!