Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulated cryogenic pressure vessels such as LNG storage tanks, oxygen/nitrogen/argon storage tanks, and CO2 storage tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
In accordance with China's "Regulations for the Safety Supervision of Pressure Vessel Technology," carbon dioxide storage tanks are classified as Category II pressure vessels. The Regulations categorize pressure vessels into the following types: - Category I pressure vessels: Those with working pressures of 10 MPa (MegaPascals) or more, such as steam boilers and pressure vessels. - Category II pressure vessels: Those with working pressures of 0.1 MPa or more but less than 10 MPa, such as air compressors and liquefied gas storage tanks. - Category III pressure vessels: Those with working pressures of 0.05 MPa or more but less than 0.1 MPa, such as storage tanks. - Category IV pressure vessels: Those with working pressures less than 0.05 MPa, such as gas cylinders. Based on this classification, carbon dioxide storage tanks typically have working pressures above 0.1 MPa, thus falling under Category II pressure vessels. It is important to note that specific classification criteria may vary by region or jurisdiction due to different regulations and standards. When using and managing carbon dioxide storage tanks, one should adhere to the corresponding legal and standard requirements.

二氧化碳储罐在使用过程中可能会遇到一些常见问题，需要进行维修和处理。以下是一些常见的问题和相应的维修方法： 泄漏问题：储罐可能出现泄漏，导致二氧化碳的损失和安全隐患。维修方法包括检查和更换密封件、修复或更换泄漏的管道和阀门等。 腐蚀问题：储罐的外壁和内壁可能会受到腐蚀，影响储罐的结构和安全性。维修方法包括清洗和修复腐蚀部位，涂覆防腐涂层，或者更换受损的部件。 压力问题：储罐的压力可能出现异常，过高或过低，影响储罐的正常运行。维修方法包括检查和调整压力控制系统，修复或更换压力传感器、安全阀等。 温度问题：储罐的温度可能出现异常，过高或过低，影响二氧化碳的储存和使用。维修方法包括检查和调整温度控制系统，修复或更换温度传感器、冷却设备等。 控制系统问题：储罐的控制系统可能出现故障，导致无常控制和监测储罐的运行状态。维修方法包括检查和修复控制系统的电气元件、传感器、仪表等。 需要注意的是，对于二氧化碳储罐的维修和处理，应由的技术人员进行操作，并遵循相关的安全操作规程和标准。在维修过程中，应确保储罐的安全性和稳定性，以及维修过程的安全性。好咨询工程师或储罐制造商的建议和指导。

Carbon dioxide storage tanks are widely used in many industries. Here are some common industries and examples of using carbon dioxide storage tanks:   - Beverage and Food Industry: Carbon dioxide is used as a carbonating agent for beverages and food, for making carbonated drinks, beer, soft drinks, etc. Tanks are used for storing and supplying carbon dioxide to meet production line requirements.   - Industry: Carbon dioxide has various applications in industry, such as anesthesia, respiration, tissue freezing, etc. Tanks are used for storing and supplying medical-grade carbon dioxide to meet facility needs.   - Fire Suppression: Carbon dioxide is widely used in fire suppression systems, especially in extinguishing electrical and sensitive equipment. Tanks are used for storing and supplying fire suppression carbon dioxide.   - Gas Industry: Carbon dioxide is also an important product in the gas industry, used in the manufacture of chemicals, metal processing, welding, and gas protection, etc. Tanks are used for storing and supplying industrial-grade carbon dioxide.   - Greenhouse Agriculture: Carbon dioxide can be used to promote plant growth in greenhouses, providing additional carbon dioxide concentration. Tanks are used for supplying the required carbon dioxide for greenhouses.   - Automotive Industry: Carbon dioxide is used for tire inflation and airbag systems in cars. Tanks are used for storing and supplying carbon dioxide to meet the needs of car manufacturing and repair. These are just some common industry examples; in reality, carbon dioxide storage tanks are also widely used in many other industries, such as chemicals, frozen food, etc. Specific applications will vary based on industry needs and application scenarios.

Carbon dioxide tanks offer the following advantages: - High storage density: CO2 tanks can compress CO2 gas into a liquid state, significantly increasing storage density. Compared to gas storage, liquid CO2 can hold more CO2 in relatively smaller tanks, saving space and costs. - Environmental friendly and renewable: CO2 is an eco-friendly gas, and its increase in the atmosphere contributes to warming and climate change. By storing and utilizing CO2, we can reduce its emissions into the atmosphere, achieving environmental protection and sustainable development. - Various application fields: CO2 tanks are widely used in multiple industries, including food and beverage, industrial, fire suppression, and gas supply. CO2 serves as a preservative, carbonation agent, gas, and extinguishing agent, among other uses, with broad applications and market demand. - Safe and reliable: In the design and manufacturing process, CO2 tanks typically use high-strength materials (such as carbon steel or stainless steel) with excellent pressure resistance and safety. The tanks are often equipped with safety valves, pressure gauges, level indicators, and other accessories to ensure safe operation. Moreover, CO2 is a non-flammable and non-explosive gas, making it relatively safe. These advantages make CO2 tanks an important storage and supply equipment, widely used across various industries. However, it is crucial to follow relevant safety operating procedures and standards when using CO2 tanks to ensure their safe operation and use.
Our company highly values technological innovation and R&D design. We have one city-level technical center in Heze City and 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. Our key products and technologies, such as thermal pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have been selected for multiple Shandong Provincial Department of Industry and Information Technology Science and Technology Innovation Projects, key projects of Shandong Province, and Heze City Innovation and Excellence Projects. We have accumulated 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc+filling wire argon arc welding (PAW-GTAW) technology, which has been appraised as reaching an international level in deep cryogenic container manufacturing after provincial scientific and technological achievement evaluation. Choose ZJ Special Equipment, and let's create brilliance together!