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, GC2/Class pressure pipeline installation licenses, as well as a qualification for electromechanical equipment installation contracting. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
Chengjie Special Equipment is a manufacturer of cryogenic liquid storage tanks, offering design, manufacturing, and installation services for cryogenic liquid CO2 storage tanks. Here's a brief introduction to the cryogenic liquid CO2 storage tanks produced by Chengjie Special Equipment: Tank Type: The storage tanks produced by Chengjie are typically designed in either vertical or horizontal configurations, chosen based on customer requirements and site conditions. Material: The tanks are primarily made from cryogenic steel, known for its excellent corrosion and low-temperature resistance. Insulation Layer: The interior of the tanks is equipped with an insulation layer to minimize heat transfer and liquid evaporation. The insulation layer usually consists of multiple layers, including thermal insulation materials and an external protective layer. Safety Valve and Pressure Relief Device: The tanks are equipped with safety valves and pressure relief devices to control internal tank pressure and prevent overpressure and explosion. Liquid Level Indicator: The tanks are fitted with liquid level indicators to monitor the liquid level inside, ensuring the control and management of liquid storage volume. Safety Measures: Chengjie's cryogenic liquid CO2 storage tanks comply with relevant safety regulations and standards and implement various safety measures, such as fire and explosion prevention measures, leak detection, and alarm systems. Customized Design: According to customer needs and application scenarios, Chengjie can provide customized design and manufacturing services to meet the specific requirements of different customers.

在二氧化碳储罐罐区进行安全操作时，需要遵循以下几个关键步骤和注意事项： 储罐区域划定：将储罐区域划定为专门的区域，并设置明确的标识和警示标志，以提醒人员注意安全。 人员培训：确保所有操作人员都接受过相关的培训，了解储罐的特性、操作规程和应急措施。培训内容应包括储罐的安全操作、泄漏处理、火灾应对等。 个人防护装备：所有进入储罐区域的人员都应佩戴适当的个人防护装备，如防护服、安全鞋、、手套等。这些装备可以提供保护，减少潜在的伤害风险。 操作规程：制定和遵守储罐的操作规程，包括储罐的开启、关闭、充装、排空等操作步骤。确保操作人员按照规程进行操作，避免操作失误和事故发生。 泄漏处理：储罐区域应配备适当的泄漏处理设备和材料，以应对可能的泄漏情况。操作人员应熟悉泄漏处理程序，并及时采取措施进行泄漏控制和清理。 火灾安全：储罐区域应配备适当的消防设备和灭火器材，并确保操作人员了解火灾应对程序。禁止在储罐区域内吸烟或使用明火，以防止火灾风险。 定期检查和维护：定期检查储罐的安全阀、压力表、温度传感器等设备的工作状态，并进行必要的维护和修理。确保储罐的正常运行和安全性。 应急预案：制定储罐区域的应急预案，包括事故报警、人员疏散、急救措施等。所有操作人员应熟悉应急预案，并定期进行演练和培训。 需要注意的是，以上是一般的安全操作指导，具体的操作要求可能会因不同的储罐设计和使用场景而有所差异。在进行储罐操作时，应遵循相关的安全操作规程和标准，确保操作的安全性和有效性。好咨询工程师或储罐制造商以获取具体的操作指导。

Dry ice is a solid refrigerant obtained by directly converting carbon dioxide gas under high pressure. It has several applications:   Freezing food and pharmaceuticals: Dry ice is widely used for the transportation and storage of food and pharmaceuticals. Thanks to its low temperature and rapid cooling speed, it can effectively maintain the freshness and quality of food and medicines.   Special effects and stage performances: Dry ice is also extensively utilized in special effects and stage performances. When it comes into contact with heat in the environment, it quickly turns into gas, producing a large amount of white smoke, creating a mysterious and dramatic atmosphere.   Cleaning and disinfection: Dry ice can also be used for cleaning and disinfection. When it comes into contact with surfaces, the low temperature and the physical impact of the vaporization process can effectively remove dirt, bacteria, and viruses without leaving residues.   Laboratories and scientific research: Dry ice has applications in laboratories and scientific research as well. It can be used to freeze samples, create low-temperature experimental environments, and manufacture cold traps and condensers.   It is important to note that safety should be a priority 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 and the risk of oxygen deficiency.

If a leak in the carbon dioxide storage tank is detected, the following procedures should be taken immediately: 1. Confirm the leak location: First, identify the exact position of the leak, which can be done through auditory detection, observation, or using gas detection equipment. 2. Emergency response: Upon discovering a leak, take immediate emergency measures to ensure personnel safety. Evacuate personnel to a safe area and notify relevant individuals and emergency services. 3. Cut off the gas supply: As soon as possible, shut off the carbon dioxide supply source by closing valves or disconnecting power, to stop the supply of carbon dioxide. 4. Locate the leak: In a safe environment, use gas detection equipment or visual inspection to find the leak. Apply soap water or other leak detection agents to potential leak areas and observe for bubble formation. 5. Seal the leak: Once the leak location is confirmed, take temporary sealing measures, such as using tape, sealant, or other reliable sealing materials for temporary repair. Ensure that the sealing is secure and effective in preventing gas leakage. 6. Repair and restoration: In a safe environment, perform further repairs and restoration as needed. Depending on the specific nature of the leak, it may be necessary to replace gaskets, repair or replace valves, etc. These repair and restoration tasks should be carried out by qualified personnel. 7. Inspection and testing: After repairs and restoration, conduct leak detection and testing to ensure that the leak has been completely repaired and the tank's safety performance has returned to normal. It is important to handle the leak in carbon dioxide storage tanks with caution and follow relevant safety regulations and procedures. If you do not possess the necessary knowledge and skills, contact a professional for assistance.
Our company attaches great importance to technological innovation and research and development. We possess one city-level enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. We are equipped with over 600 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, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc + wire feeding tungsten inert gas arc welding (PAW-GTAW) technology. This technology has been appraised as reaching international standards in the field of deep cryogenic container manufacturing at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!