Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company has 7 business centers: boilers, deep-freezing containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop spanning 83,000 square meters. The company currently employs 710 people, including 247 engineers and technicians, and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
以下是一些常见的二氧化碳储罐管理守则： 安全管理：建立完善的安全管理制度，包括安全操作规程、应急预案和事故处理程序等。确保操作人员具备必要的安全知识和技能，并定期进行安全培训和演练。 储罐检查和维护：定期检查储罐的外观、阀门、连接件等，确保其完好无损。定期进行泄漏检测和压力测试，确保储罐的安全性能符合要求。 液位监测和控制：定期监测储罐内的液位，确保储罐内的二氧化碳充足。根据需要进行充填或放空操作，维持适当的液位。 废气处理：处理二氧化碳储罐产生的废气，避免对环境造成污染。采取适当的废气处理措施，如收集和处理废气。 防火防爆措施：采取防火防爆措施，确保储罐周围的环境安全。远离火源、高温区域和易燃物质，定期检查和维护防火设施。 标识和警示：储罐应明确标识，包括储存的气体类型、压力等信息。周围应设置警示标志，提醒人员注意储罐的存在和相关安全注意事项。 储存记录：记录储罐的使用情况，包括充填日期、充填量、检查记录等。定期进行储罐的检测和维护，并保留相关记录。 定期审查和改进：定期审查储罐管理制度和操作流程，及时发现问题并进行改进。根据实际情况进行风险评估和管理，提高管理水平和安全性能。 需要注意的是，具体的管理守则可能会因不同的储罐类型和应用而有所不同。在管理二氧化碳储罐时，应根据相关的规范和标准进行操作，并咨询人士以确保安全和有效性。

The process of filling a CO2 storage tank involves injecting liquid CO2 into the tank. Here are some precautions to consider when filling a CO2 storage tank: Safety Operation: Adhere to relevant safety procedures during CO2 tank filling. Operators should be trained and aware of the tank's characteristics and safety concerns to ensure safe operations. Tank Capacity Control: Ensure the filling does not exceed the tank's rated capacity. Overfilling may lead to excessive pressure and increased safety risks. Filling Rate Control: Maintain a moderate filling rate to avoid too fast or too slow. Excessive speed may cause high internal pressure, while slow speed may lead to extended filling times. Temperature Control: Monitor the temperature of the liquid CO2 during filling. High temperatures may cause rapid evaporation, and low temperatures may lead to solidification. Pressure Control: Maintain internal tank pressure during filling. Excessive pressure may cause tank rupture or leakage, while low pressure may result in inadequate filling. Level Monitoring: Regularly check the tank's level during filling to ensure accurate measurements and 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 meet 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, such as sealed connections and protective devices. The above are some precautions for CO2 storage tank filling. Follow relevant safety regulations and standards during filling operations, and consult with experts to ensure safety and effectiveness.

The primary reason for pre-cooling a carbon dioxide tank before use is to ensure that the carbon dioxide inside the tank remains in a liquid state and maintains a stable temperature during storage and supply. The pre-cooling process typically involves the following steps: Tank Cooling: Before the tank is put into operation, the internal temperature of the tank must be cooled to a sufficiently low level to convert the carbon dioxide from a gas to a liquid. This can be achieved by injecting a cooling medium (such as liquid nitrogen) into the tank or by using an external cooling device. Tank Pre-filling: After the tank has been cooled, liquid carbon dioxide must be pre-filled into the tank to fill it and maintain a certain pressure. The purpose of pre-filling is to provide sufficient carbon dioxide supply during storage and supply and to maintain stable pressure within the tank. Through pre-cooling, the liquid state of the carbon dioxide inside the tank can be ensured, preventing premature evaporation and energy loss. Additionally, pre-cooling helps to lower the tank's temperature in advance, reducing carbon dioxide evaporation and pressure fluctuations, thereby improving the tank's operational efficiency and safety. It should be noted that the specific methods and requirements for pre-cooling may vary depending on the tank design and application scenario. When performing pre-cooling operations, relevant safety operation procedures and standards should be followed to ensure the safety and effectiveness of the operation.

The safe operation of low-temperature carbon dioxide storage tanks is primarily crucial in the following aspects: Design and Manufacturing: The tank's design and construction must comply with relevant standards and regulations to ensure they can withstand working conditions under low temperatures and high pressures. The tank should have sufficient strength and sealing performance to prevent leaks and ruptures. Safety Valves and Pressure Control: The tank should be equipped with safety valves and pressure control devices to ensure internal pressure remains within safe limits. Safety valves should be inspected and tested regularly to ensure proper functioning. Temperature Control: Effective temperature control is necessary for low-temperature carbon dioxide storage tanks to prevent freezing or embrittlement due to excessively low temperatures. Appropriate insulation materials and equipment should be used to maintain the tank and pipeline temperatures within safe ranges. Leak Detection and Alarm: The tank should be fitted with leak detection devices and alarm systems, along with corresponding monitoring equipment. These devices can detect leaks promptly and trigger alarms to take appropriate actions. Safe Operation and Training: Operators should receive relevant training to understand the safe operation procedures and standards for low-temperature carbon dioxide storage tanks. Operators should be familiar with the tank's characteristics, working principles, and emergency response measures. Regular Inspection and Maintenance: Tanks should be regularly inspected and maintained, including visual inspections, anti-corrosion coating maintenance, and leak detection. Regular inspections can help identify potential issues early and take corrective measures. Emergency Preparedness: Establish an emergency response plan and equip with appropriate fire-fighting and first-aid equipment. Operators should be familiar with emergency procedures and be able to respond quickly to emergencies. Please note that the above points are general recommendations. Specific safe operation should be based on the design and usage requirements of the low-temperature carbon dioxide storage tanks. It is recommended to refer to relevant safety operation manuals and guidelines before using the tank to ensure safety.
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