Shandong Zhongjie Special Equipment (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, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as a mechanical and electrical equipment installation contracting qualification. 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 the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
Carbon dioxide storage tanks are equipment used for storing and transporting carbon dioxide (CO2). They are typically sealed containers with specialized design and structure to ensure safe storage and usage of CO2. Here are some common details about carbon dioxide storage tanks: Storage Form: Carbon dioxide is a gas at room temperature but can be compressed into a liquid under high pressure for easier storage and transportation. Storage tanks for CO2 usually hold liquid CO2. Storage Pressure: These tanks usually store high-pressure CO2, with pressure around 20-25 bar. This high-pressure state helps maintain CO2 in a liquid state. Storage Capacity: The capacity of CO2 storage tanks varies depending on requirements, from small ones of a few thousand liters to large ones of tens of thousands of liters. The capacity choice depends on specific application needs. Safety: Carbon dioxide is a colorless, odorless gas, but at high concentrations, it can pose asphyxiation risks to humans. Therefore, appropriate safety measures such as ventilation and protective equipment must be taken when using CO2 storage tanks to ensure the safety of operators. Applications: Carbon dioxide storage tanks are widely used in various fields, including the food and beverage industry, manufacturing, fire suppression, and gas supply. They store and provide CO2 to meet different business needs. It is important to note that the design, manufacturing, and use of CO2 storage tanks must comply with relevant regulations, standards, and safety requirements. When using CO2 storage tanks, follow the operation manual and safety guidelines, and cooperate with local regulatory bodies to ensure the tank's safety and reliability.

Carbon dioxide has wide applications in the field of food freezing. Below are some common uses of carbon dioxide in food freezing: 1. Frozen Food Processing: Carbon dioxide is commonly used in the processing of frozen foods. By exposing the food to liquid carbon dioxide, the temperature can be rapidly reduced, achieving quick freezing. This quick freezing effectively preserves the quality, texture, and nutritional content of the food. 2. Frozen Storage: Carbon dioxide is also used for the frozen storage of food. During the storage process, the food is placed in a low-temperature environment, and through the refrigerating action of carbon dioxide, the temperature of the food is lowered below the freezing point, thereby extending the shelf life of the food. 3. Frozen Transportation: Carbon dioxide plays a crucial role in the frozen transportation of food. By using carbon dioxide refrigeration technology during transportation, the low-temperature state of the food can be maintained, preventing quality loss. 4. Frozen Display: In the retail food industry, carbon dioxide is also used in frozen display cabinets. By injecting carbon dioxide gas into the display cabinets, the low-temperature state of the food can be maintained, showcasing the food while keeping it fresh and of high quality. Compared to traditional freezing techniques, carbon dioxide freezing offers advantages such as fast freezing, good freezing effect, and minimal impact on food quality. However, it is important to note that the use of carbon dioxide freezing technology requires safe operation to avoid leaks and hazards to humans. Therefore, when using carbon dioxide for food freezing, it is necessary to follow relevant safety operation procedures and guidelines.

Prior to using the CO2 storage tank, the following preparations must be made: - Inspect the tank: Check for any signs of damage, corrosion, or oil leakage on the tank's exterior, ensuring its structural integrity and safety. - Check valves and pipes: Verify that the tank's inlet and outlet valves and pipe connections are functioning normally, with no leaks or loose fittings, and that valve operation is smooth and reliable. - Inspect safety accessories: Ensure that safety accessories such as safety valves, pressure sensors, and temperature sensors are working properly and that their set parameters meet requirements. - Check the level measurement system: Confirm the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure accurate level readings. - Inspect the pressure relief device: Check that the tank's pressure relief device (e.g., safety valve) is functioning correctly and that its set pressure meets requirements. - Check the gas quality: Ensure the CO2 gas in the tank meets quality standards, with no impurities or contaminants. - Inspect fire protection equipment: Verify that fire protection equipment around the tank is in good condition and that fire extinguishers, sprinkler systems, etc., are operating properly. - Train operators: Operators should receive training on the characteristics, operation requirements, and safety measures of the CO2 storage tank. Training should include safe operation, leak handling, and emergency procedures. - These preparations ensure the CO2 storage tank is in good condition before use and guarantees the safety and reliability of operations. Follow relevant safety operating procedures during preparation and have personnel handle the operations.

When storing CO2 tanks, the following requirements must be met to ensure safety and effectiveness: Ventilation: Tanks should be stored in well-ventilated areas to avoid the accumulation of CO2 gas. Ensure adequate 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 Avoidance: 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. Mechanical Damage Prevention: Keep tanks away from machinery and heavy objects to avoid collisions and damage. Mechanical damage can lead to tank leaks or破裂, causing safety incidents. Labeling and Warning Signs: Clearly label the tank with the type of stored gas and pressure information. Set up warning signs around the tank to remind personnel of its presence and related safety precautions. Regular Inspections: Conduct regular inspections of the tank's exterior, valves, and fittings to ensure they are intact. Take prompt repair actions if any abnormalities are detected. Storage Capacity Control: Control the storage capacity of the tank to avoid exceeding the rated capacity. Overfilling can lead to excessive tank pressure, increasing 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. Note that specific storage requirements may vary depending on the type of tank and application. When storing CO2 tanks, operate according to relevant regulations and standards and consult with experts to ensure safety and effectiveness.
Our company places great emphasis on technological innovation and research and development. We have one municipal enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. 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, and others. The key products and technologies we have developed, such as welding for temperature and pressure vessels, emissions reduction for biomass boilers, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation 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 internationally recognized plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technique. After being evaluated by the provincial science and technology achievement commission, the technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance!