Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, B-grade boiler installation, and GB2/GB3/GC2/GC3 pressure pipeline installation licenses, as well as mechanical and electrical equipment installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a director unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
When storing carbon dioxide tanks, the following requirements must be adhered to for safety and efficiency: Ventilation: Tanks should be stored in well-ventilated areas to prevent the buildup of carbon dioxide gas. Ensure there is sufficient air circulation around the tanks to avoid gas accumulation and asphyxiation risks. Fire and Explosion Prevention: Keep tanks away from fire sources, high-temperature areas, and flammable materials. Avoid open flame operations near tanks to prevent fire and explosion risks. Avoid Direct Sunlight: Store tanks in a location shielded from direct sunlight to prevent overheating and pressure increase. Direct sunlight can raise tank temperatures, increasing the risk of leaks and explosions. Prevent Mechanical Damage: Keep tanks away from machinery and heavy objects to avoid collisions and damage. Mechanical damage can lead to tank leaks or ruptures, causing safety incidents. Labeling and Warning Signs: Clearly label tanks with the type of gas stored, pressure, and other relevant information. Set up warning signs around the tanks to remind personnel of their presence and safety precautions. Regular Inspections: Conduct regular inspections of tank appearance, valves, and fittings to ensure they are intact. Take prompt repair measures if any abnormalities are found. Storage Capacity Control: Control the storage capacity of tanks to avoid exceeding their rated capacity. Overfilling can cause excessive tank pressure and increase safety risks. Storage Records: Document tank usage, including filling dates, quantities, and inspection records. Regularly perform tank inspections and maintenance, and retain relevant records. Note that specific storage requirements may vary depending on 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.

The process of filling a CO2 tank involves injecting liquid CO2 into the tank. Here are some important considerations for CO2 tank filling:  - Safe Operation: Adhere to the relevant safety procedures when filling CO2 tanks. Operators should be trained to understand the tank's characteristics and safety precautions to ensure safe operations.  - Tank Capacity Control: Ensure that the filling does not exceed the tank's rated capacity. Overfilling can lead to excessive tank pressure, increasing safety risks.  - Flow Rate Control: Maintain a moderate filling speed to avoid both too fast and too slow rates. Excessive speed may cause elevated internal tank pressure, while slow speed can extend filling time.  - Temperature Control: Monitor the temperature of the liquid CO2 during filling. High temperatures may cause rapid evaporation, and low temperatures may lead to freezing.  - Pressure Control: Manage the tank's internal pressure during filling. Excessive pressure can cause tank rupture or leakage, while insufficient pressure may result in incomplete filling.  - Level Monitoring: Regularly monitor the tank's liquid level during filling. Ensure accurate level measurement to prevent overfilling or underfilling.  - Pressure Relief Devices: The tank should be equipped with pressure relief devices, such as safety valves, to control internal pressure. The set pressure should comply with requirements and be regularly inspected and maintained.  - Environmental Protection: Be mindful of environmental protection during filling to prevent CO2 leakage and contamination. Use appropriate protective measures like sealed connections and protective devices.  These are some important points to consider when filling CO2 tanks. Follow safety regulations and standards during filling operations, and consult with experts to ensure safety and effectiveness.

Standard parameters for CO2 storage tanks may vary based on different design and application requirements. Here are some common standard parameters: - Storage Capacity: The capacity of CO2 storage tanks is typically expressed in kiloliters (L) or cubic meters (m), with common capacities ranging from a few thousand to tens of thousands of liters. - Working Pressure: The working pressure of CO2 storage tanks is generally around 20 to 25 MPa at normal temperatures, with the specific pressure determined by application requirements and design standards. - Design Temperature: The design temperature of CO2 storage tanks usually falls within a low-temperature range, typically between -40℃ and -60℃, to accommodate the liquefaction and storage requirements of CO2. - Material: CO2 storage tanks are usually made of high-strength steel or alloy materials to withstand stresses and loads under high-pressure and low-temperature conditions. - Insulation Layer: The tanks are internally insulated to reduce heat conduction and liquid evaporation. The insulation layer is typically a multi-layer structure, including thermal insulation material and an external protective layer. - Safety Valve and Pressure Relief Devices: Storage tanks are equipped with safety valves and pressure relief devices to control internal tank pressure, prevent overpressure, and avoid explosions. - Level Monitoring and Control: The tanks are fitted with level monitoring devices to monitor the liquid level within the tank. Timely monitoring and control of the liquid level ensure that the stored volume of liquid remains within safe limits. Note that specific standard parameters for CO2 storage tanks may vary due to different design standards, application requirements, and manufacturers. When selecting and using CO2 storage tanks, it is important to consider these factors.

Leakage issues in CO2 storage tanks may be caused by the following reasons: Material Corrosion: CO2 has a certain degree of corrosiveness, and prolonged contact may lead to corrosion of the tank material. Corrosion can damage the tank's surface protective layer, causing it to lose its seal and lead to leakage. 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 area, resulting in leakage. Design Defects: Inadequate design or defects in the tank may also cause leakage. For example, poorly designed interfaces or unreasonable structural designs can lead to leakage issues. Overpressure: If the internal pressure of the tank exceeds its capacity, it may deform or rupture, causing leakage. Temperature Fluctuations: During temperature changes, the thermal expansion and contraction effect on CO2 storage tanks may cause deformation or stress concentration, leading to leakage. Incorrect Operation: Improper operation and maintenance may also cause leakage. For instance, over-tightening valves or improper maintenance measures can reduce the tank's sealing performance. External Damage: External forces such as impacts, scratches, or corrosion on the tank may cause surface damage or corrosion, leading to leakage. To avoid leakage issues in CO2 storage tanks, it is essential to select appropriate materials, reasonable design, and manufacturing processes, and to conduct regular inspections and maintenance. Additionally, operators should receive training and adhere to operational procedures to ensure the safe operation of the tank.
Our company attaches great importance to technological innovation and R&D design, boasting 1 city-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with 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, and more. The key products and technologies we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat recovery, have successively been selected for multiple Shandong Province Ministry of Industry and Information Technology science and technology projects, key provincial projects, and Heze City innovative and excellent 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 tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement appraisal, 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!