Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates seven major business centers: boiler, deep-freeze vessel, pressure vessel, central air conditioning, engineering installation, international trade, and Internet of Things. It has three manufacturing sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, including 247 engineering and technical personnel and 82 middle-level technical personnel. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was named a "Specialized and New Enterprise in Shandong Province" by the Industrial and Information Technology Department. In June 2022, it was identified 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.
Carbon dioxide storage tanks fall under the category of pressure vessels. Pressure vessels are sealed containers capable of withstanding internal pressure, used for storing and transporting gases, liquids, or mixtures. A carbon dioxide storage tank is a pressure vessel designed for storing and transporting carbon dioxide, featuring special design and structure to ensure safe storage and use. Depending on design and application, carbon dioxide storage tanks can be vertical or horizontal, with varying capacities and pressure ratings. When using carbon dioxide storage tanks, it is necessary to comply with relevant regulations and standards to ensure safe operation and usage.

Low Temperature Carbon Dioxide Storage Tank Related Knowledge 1. Structure of Low Temperature Carbon Dioxide Storage Tank Low temperature carbon dioxide storage tanks are typically double-walled cylindrical structures, with the inner tube made of 6MnDR alloy steel and the outer tube 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 pearlite sand or wrapped with multiple layers for thermal insulation. The storage tank is equipped with valves for operation, which are arranged for ease of use. Pressure gauges and level indicators are also installed to monitor the pressure and liquid level inside the tank. 2. Key Features of Low Temperature Carbon Dioxide Storage Tank (1) The storage tank is equipped with a connection for filling tanker trucks, allowing liquid to be supplied to vaporizers, tankers, and pumps. (2) Both the inner and outer cylinders of the storage tank are equipped with safety devices to ensure safe operation for users. (3) The insulation material of the storage tank has been specially treated to provide a longer vacuum life, and a vacuum gauge is installed for measuring the insulation space vacuum when needed. 3. Transportation of Low Temperature Carbon Dioxide Storage Tank (1) During road transportation, the storage tank 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 Tank (1) Upon arrival at the installation site, the storage tank 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, which should not be touched. (2) Perform a gas-tightness test on the inner cylinder system of the storage tank using nitrogen to the working pressure. After checking that valves, pipes, flanges, etc., are leak-free, the installation is complete. (3) The installation dimensions are as specified in the supply materials. When considering filling or emptying liquids with tankers, account for the vehicle's access route.

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。

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: - Regular Inspections: Check the tank's exterior, internal lining, valves, and pipeline connections regularly. Pay attention to signs of corrosion, cracks, and oil leaks. - Cleaning and Draining: Regularly clean the tank interior to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities. - Corrosion Protection: The shell and inner lining of low-temperature liquid storage tanks should be treated with corrosion protection. Regularly inspect and maintain the corrosion protection layer or coating to ensure its integrity and effectiveness. - Temperature and Pressure Control: Maintain the tank's temperature and pressure within the designed range. Avoid extreme temperatures and pressures that could damage the tank. - Safety Equipment Check: Inspect the tank's safety equipment, such as safety valves, pressure sensors, and temperature sensors, to ensure they are functioning properly. Verify that their set parameters meet requirements. - Level Measurement System Maintenance: Regularly inspect and calibrate the level measurement system to ensure accuracy and reliability. Clean or replace level sensors as needed. - Fire Protection Measures: Fire protection is crucial for low-temperature liquid storage tanks. Ensure that fire protection equipment around the tank is in good condition and conduct regular fire drills. - Regular Assessment and Monitoring: Regularly assess and monitor the tank for structural integrity, corrosion, and safety. Implement maintenance and repair measures based on assessment results. - Operator Training: Operators should receive training on the characteristics, operation requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency procedures.
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