Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, A2-grade pressure vessel manufacturing license, A2-grade pressure vessel design license, B-grade boiler installation, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as an equipment and machinery installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council member 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.
When using carbon dioxide storage tanks, the following points should be noted: - Safe Operation: When using carbon dioxide storage tanks, it is mandatory to adhere to relevant safety operating procedures and standards. Operators should receive training to understand the tank's characteristics, operating 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. In case of abnormalities or damage, repairs or replacements should be carried out promptly. - 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 proper operation of the pressure control system. - Temperature Control: Carbon dioxide tanks typically need to be kept at low temperatures. Ensure the proper functioning of cooling equipment, regularly check and calibrate temperature sensors to maintain appropriate storage temperatures. - Leak Protection: Carbon dioxide is a gas prone to leakage, which can cause safety risks and environmental pollution. Ensure the tank and pipeline seals are intact, regularly inspect and replace sealing components, and address leaks promptly. - Fire and Explosion Prevention: Avoid open flame activities near the tank to prevent fire sources from contacting carbon dioxide. Maintain good ventilation around the tank to prevent the accumulation of carbon dioxide. - Waste Disposal: Disposed carbon dioxide storage tanks or residues should be handled in accordance with relevant regulations and requirements. Follow environmental protection standards to ensure the safe disposal of waste and environmental protection. - Regular Maintenance: Regularly perform maintenance and inspections on the tanks, including cleaning and painting.

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. Here 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. A common method is to use carbon capture technology to separate CO2 from flue gas and then 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 industries such as steel, cement, and chemicals can be recovered to reduce emissions. 3. Atmospheric CO2 Capture: CO2 in the atmosphere can also be recovered using direct air capture technology. This technique uses adsorbents or chemical reactions to capture and separate CO2 from the atmosphere, followed by storage or utilization. 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 chemicals. The development of CO2 recovery technology aims to reduce greenhouse gas emissions and mitigate climate change. However, these technologies are still under development and research, requiring further technical breakthroughs and practical verification for large-scale application.

In the event of a CO2 cylinder leak, immediate action should be taken as follows: Ensure personnel safety: First, ensure a quick evacuation from the leak area and keep a safe distance from potential hazards. If necessary, use appropriate personal protective equipment, such as respirators and protective suits. Cut off the gas supply: As soon as possible, shut off the CO2 supply source to stop further leakage. Close valves or switches or disconnect from the cylinder. Prevent ignition sources: Ensure there are no open flames or other potential heat sources that could cause a fire in the leak area. If there is a fire risk, take immediate appropriate fire-fighting measures. Ventilation: Activate ventilation equipment to increase air flow, which helps dilute and remove the leaked CO2 gas. Ensure the ventilation equipment is functioning properly and that the ventilation system does not introduce CO2 gas to other areas. Seal the leak point: If possible, attempt to seal the leak point using suitable materials or methods to reduce or stop the leakage. This may require assistance from personnel. Notify relevant departments: Promptly inform emergency, environmental protection, or other relevant agencies of the leak situation and act according to their instructions. Please note that handling CO2 cylinder leaks is a dangerous task and should be performed by trained and experienced personnel. Always follow relevant safety operation procedures and guidelines during the process.

Under China's "Regulations for the 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: Those with operating pressures of 10 MPa (megapascals) or higher, such as steam boilers and pressure vessels. - Category II pressure vessels: Those with operating pressures between 0.1 MPa and 10 MPa, such as air compressors and liquefied gas storage tanks. - Category III pressure vessels: Those with operating pressures between 0.05 MPa and 0.1 MPa, such as storage tanks. - Category IV pressure vessels: Those with operating pressures below 0.05 MPa, such as gas cylinders. Based on this classification, carbon dioxide storage tanks typically have operating pressures above 0.1 MPa, thus falling under Category II pressure vessels. It's important to note that specific classification criteria may vary depending on different regions' 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 attaches great importance to technological innovation and R&D design. We possess 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 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, and plasma welding machines. 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 innovation projects, Shandong Provincial key projects, 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 Li Yajiang of Shandong University, has jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement evaluation, the technology level has reached the international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!