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 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 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.
Dry ice is a solid refrigerant formed by directly converting carbon dioxide gas under high pressure. It has several applications: 1. Food and pharmaceuticals freezing: Dry ice is widely used in the transportation and storage of food and pharmaceuticals. Its low temperature and rapid cooling speed effectively maintain the freshness and quality of foods and medicines. 2. Special effects and stage performances: Dry ice is also extensively used in special effects and stage performances. When it comes into contact with environmental heat, it rapidly turns into gas, producing a large amount of white smoke for a mysterious and dramatic atmosphere. 3. Cleaning and disinfection: Dry ice can also be used for cleaning and disinfection. Upon contact with surfaces, the drop in temperature and the physical impact of the vaporization process effectively remove dirt, bacteria, and viruses without leaving residues. 4. Laboratories and scientific research: Dry ice has applications in laboratories and scientific research as well. It can be used to freeze samples, prepare low-temperature experimental environments, create cold traps and condensers, etc. It is important to note that safety must be observed when using dry ice. Avoid direct contact with skin and eyes, and do not use it in enclosed spaces to prevent the accumulation of carbon dioxide leading to oxygen deficiency.

The testing and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation and extending their service life. Below is a general outline of the testing and maintenance procedures for liquid oxygen storage tanks: - Visual Inspection: Conduct regular visual inspections of the liquid oxygen storage tank, checking for signs of corrosion, wear, and cracks on the surface. If any abnormalities are found, repair or replacement should be done promptly. - Internal Cleaning: Regularly clean the interior of the liquid oxygen storage tank to remove accumulated impurities and dirt. Pay attention to using appropriate cleaning agents and tools to prevent damage to the tank. - Level Measurement: Regularly measure the level to ensure the liquid oxygen within the tank is within a safe range. Use a level gauge or other measuring equipment, and record the results. - Pressure Testing: Conduct regular pressure tests to verify the tank's pressure resistance. Control pressure and time during testing to ensure safety and accuracy. - Leak Detection: Regularly perform leak detection to ensure the tank's sealing integrity. Use leak detection instruments, such as gas detectors or foam leak detectors. - Valve and Pipeline Inspection: Regularly check the valves and pipeline connections of the liquid oxygen storage tank to ensure good sealing and no leakage. If issues are found, repair or replacement should be done promptly. - Maintenance Records: Keep records of the testing and maintenance activities, including inspection dates, contents, and results. Records help track the tank's maintenance history and issue resolution. - Regular Maintenance: Develop a regular maintenance plan based on the tank's usage and requirements. Maintenance includes lubrication, tightening bolts, and replacing seals to ensure normal operation.

The quality of carbon dioxide storage tanks is influenced by several factors: - Material Quality: The quality of the tank's material directly affects its corrosion resistance, strength, and sealing performance. Common materials include carbon steel and stainless steel. Selecting high-quality materials can enhance the tank's quality and lifespan. - Manufacturing Process: The manufacturing process significantly impacts the tank's quality. Welding, heat treatment, and surface treatment during production must comply with relevant standards and regulations to ensure structural integrity and performance stability. - Design Specifications: The tank's design must adhere to relevant design standards and regulations, such as industry standards. A well-designed tank ensures sufficient strength and safety under normal operating conditions. - Safety Components: The tank's safety components, like safety valves, pressure sensors, and temperature sensors, play a crucial role in its quality and safety. Selecting high-quality safety components and proper installation and adjustment can improve the tank's quality and safety. - Inspection and Testing: Inspections and tests, such as material inspection, weld testing, and pressure testing, are required during the manufacturing process. These checks ensure the tank meets quality requirements and complies with safety standards. - Use and Maintenance: The tank's use and maintenance also impact its quality. Proper usage and regular maintenance can extend the tank's lifespan and maintain its optimal working condition. In summary, the quality of carbon dioxide storage tanks is influenced by material quality, manufacturing process, design specifications, safety components, inspections and testing, and use and maintenance. When selecting and using storage tanks, attention should be given to these factors to ensure quality and safety.

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。
ZJ Special Equipment adheres to the grand vision of "realizing employee dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry, devoting high-quality, cost-effective products and services to society!