Shandong Zhongjie Special Equipment specializes in products such as fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels like LNG, oxygen/nitrogen/argon, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and HVAC equipment like ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale thermal energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
清洁低温液体储罐的过程需要谨慎操作，以确保安全性和有效性。以下是一般的清洁步骤： 安全准备：在清洁液体储罐之前，确保储罐内的液体已经完全排空，并且储罐的压力已经释放。确保所有相关的安全设备和阀门处于关闭状态。 防护措施：低温液体储罐通常存储着冷的液体，如液氮或液氧。在进行清洁操作时，必须佩戴适当的个人防护装备，如绝缘手套、、防护服等，以防止冷或其他伤害。 清洁剂选择：选择适合清洁低温液体储罐的清洁剂。清洁剂应具备良好的腐蚀性能和低温适应性。可以咨询清洁剂供应商或储罐制造商以获取建议。 清洁过程：将清洁剂注入储罐中，使用适当的工具（如喷洒器、刷子等）进行清洁。根据储罐的尺寸和污染程度，可以选择手动清洁或使用清洗设备。 冲洗和排放：清洁完成后，使用清水或其他适当的冲洗剂进行冲洗，以确保清洁剂和污物。冲洗完成后，将废水和废液排放到合适的处理系统中，遵循环境保护的相关规定。 检查和验证：清洁完成后，进行储罐的检查和验证，确保储罐内部干净、无残留物，并符合相关的安全和卫生要求。 需要注意的是，清洁低温液体储罐的具体步骤和要求可能会因不同的储罐设计和使用场景而有所差异。在进行清洁操作时，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清洁指导。

1.相关知识 about Low-Temperature Carbon Dioxide Storage Vessels The structure of low-temperature carbon dioxide storage vessels typically consists of a double-walled cylindrical design, with the inner cylinder made of 6MnDR alloy steel and the outer cylinder of Q245R or Q345R pressure vessel steel plate. The piping is made of austenitic stainless steel, and the insulation space is filled with high-vacuum sintered sand or wrapped with multiple layers for thermal insulation. The storage vessel is equipped with valves for operation, which are arranged for ease of use. It also features a pressure gauge and a level gauge for monitoring the pressure and liquid level inside the vessel. 2.Main Features of Low-Temperature Carbon Dioxide Storage Vessels (1) The storage vessels are equipped with liquid filling connections for tanker trucks, enabling supply to vaporizers, tanker trucks, and pumps. (2) Both the inner and outer cylinders of the storage vessels are equipped with safety devices to ensure safe operation for users. (3) The insulation material of the storage vessels is specially treated to provide a longer vacuum lifespan. Additionally, the vessels are equipped with vacuum gauges for measuring the insulation space vacuum level as needed. 3.Transportation of Low-Temperature Carbon Dioxide Storage Vessels (1) During road transportation, the storage vessel should be securely fastened to the vehicle, travel at moderate speeds, and avoid collisions with other objects. (2) After arrival, the unloading crew should work with the equipment supervisor to develop a scientific and reasonable unloading plan. 4.Installation of Low-Temperature Carbon Dioxide Storage Vessels (1) Upon arrival at the installation site, the storage vessel can be positioned when installation conditions are met. During the installation process, avoid impacts and hits, and pay special attention to the explosion-proof equipment on the outer cylinder and the vacuum valve; do not touch them. (2) Perform a gas-tightness test on the inner cylinder system of the storage vessel using nitrogen to the working pressure. After checking that valves, pipes, flanges, etc., have no leaks, the installation is complete. (3) The installation dimensions of the storage vessel are specified in the supply materials. When liquid filling and emptying with tanker trucks are required, consider the vehicle's passage.

An automated maintenance system for carbon dioxide tanks typically includes the following main components: - Pressure Maintenance System: Monitors and regulates the internal pressure of the tank to ensure the carbon dioxide remains within a safe and stable pressure range. This system comprises pressure sensors, control systems, pressure regulators, and pressure reserve devices. - Temperature Control System: Monitors and adjusts the internal temperature of the tank to maintain the carbon dioxide within an appropriate temperature range. The system includes temperature sensors, control systems, and temperature regulators. - Level Monitoring System: Measures and monitors the liquid level within the tank to ensure the carbon dioxide level stays within a safe range. This system can utilize float level gauges, pressure level gauges, and ultrasonic level gauges. - Leak Detection System: Monitors for leaks in the tank and pipeline systems, enabling timely detection and alarms. The system can employ gas sensors, liquid sensors, and leak alarms. - Fire Detection and Extinguishing System: Monitors for fires in the tank area and implements appropriate extinguishing measures. The system includes fire detectors, alarms, and extinguishing equipment. - Remote Monitoring and Control System: Provides remote monitoring and control of the tank's operational status and parameters, allowing for remote operation and management. This system can connect via network, offering real-time data and remote control features. These are the primary components of a typical automated maintenance system for carbon dioxide tanks. The specific system configuration and functions can be customized according to the tank's design requirements and application scenarios. These automated maintenance systems enhance the tank's safety, stability, and reliability, reducing the need for manual intervention and operational risks.

When using a 50-cubic-liter liquid oxygen tank, the following safety concerns should be noted: Fire and Explosion Prevention: Liquid oxygen is highly oxidizing and can support combustion. Therefore, avoid contact and ensure there are no open flames or other ignition sources nearby. Ventilation: Evaporation of liquid oxygen produces a large amount of oxygen, so good ventilation around the tank is essential to prevent oxygen buildup and the risk of explosion. Avoid High Temperatures: Liquid oxygen can cause combustion or explosion when in contact with high-temperature objects. Thus, avoid exposing the liquid oxygen tank to high-temperature environments or contact with hot objects. Pressure Control: Use the liquid oxygen tank according to its designed pressure and flow rate, avoiding exceeding its capacity. Regularly inspect and maintain the safety valve to ensure proper operation and prevent overpressure. Corrosion Prevention: Regularly inspect and maintain the liquid oxygen tank to prevent corrosion, especially on the tank surface and contact areas, keeping them dry and clean to avoid corrosion. Safe Operation: Operators should receive relevant training to understand the safe operation procedures and standards for liquid oxygen tanks. Adhere to correct procedures, wear personal protective equipment, and ensure safety during operations. Emergency Preparedness: Establish an emergency plan when using the liquid oxygen tank and equip with appropriate fire extinguishing and first aid equipment. Operators should be familiar with emergency procedures and able to respond quickly to emergencies. Note that the above safety concerns are general recommendations. Specific safe operation should be based on the design and usage requirements of the liquid oxygen tank. Before using the liquid oxygen tank, it is recommended to refer to relevant safety operation manuals and guidelines to ensure safe operation.
Our company attaches great importance to technological innovation and R&D design. We have one municipal enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 types of 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. The key products and technologies we have developed, such as welding of 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 science and technology projects, Shandong Provincial key projects, and Heze City innovative and excellent 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. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology, which has been appraised as an international-level technology in the field of deep cryogenic vessel manufacturing at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!