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-freeze 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. It 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The testing and maintenance of liquid oxygen tanks are crucial for ensuring safe operation and extending their service life. Below is a general breakdown of the testing and maintenance procedures for liquid oxygen tanks: - Visual Inspection: Regularly inspect the exterior of the liquid oxygen tank for corrosion, wear, cracks, and other issues. In case of any anomalies, promptly repair or replace as needed. - Internal Cleaning: Regularly clean the interior of the liquid oxygen tank to remove accumulated debris and dirt. Be mindful to use appropriate cleaning agents and tools to avoid damaging the tank. - Level Measurement: Conduct regular level measurements to ensure the liquid oxygen level is within a safe range. Use level gauges or other measuring equipment and record the results. - Pressure Testing: Regularly perform pressure tests to verify the tank's pressure resistance. Pay attention to controlling pressure and time during testing to ensure safety and accuracy. - Leak Detection: Regularly check for leaks to ensure the tank's integrity. Utilize leak detection equipment, such as gas detectors or foam leak detection agents. - Valve and Pipe Inspection: Regularly inspect the valves and pipe connections of the liquid oxygen tank to ensure proper sealing and no leakage. In case of any issues, promptly repair or replace. - Maintenance Records: Keep records of the testing and maintenance activities, including dates, inspection items, and results. These records help track the tank's maintenance history and issue resolution. - Scheduled Maintenance: Develop a regular maintenance schedule based on the tank's usage and requirements. Maintenance tasks include lubrication, tightening bolts, and replacing seals to ensure normal operation.

The application standards for liquid carbon dioxide storage tanks mainly include the following aspects:

The quality of CO2 storage tanks is influenced by several factors: Material Quality: The quality of the tank's material directly impacts its corrosion resistance, strength, and sealing performance. Common materials include carbon steel and stainless steel, among others. Selecting high-quality materials can enhance the tank's quality and lifespan. Manufacturing Process: The manufacturing process significantly affects the tank's quality. Processes such as 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 applicable design specifications and standards, such as industry standards. A well-designed tank can ensure sufficient strength and safety under normal operating conditions. Safety Components: The safety components of the tank, such as safety valves, pressure sensors, and temperature sensors, play a crucial role in the tank's quality and safety. Selecting high-quality safety components and ensuring proper installation and adjustment can enhance the tank's quality and safety. Inspection and Testing: Inspections and tests are required during the manufacturing process, such as material inspections, weld inspections, and pressure tests. These checks ensure the tank meets quality requirements and complies with safety standards. Usage and Maintenance: The tank's usage 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 CO2 storage tanks is affected by factors such as material quality, manufacturing process, design specifications, safety components, inspections and testing, and usage and maintenance. When selecting and using storage tanks, attention should be given to these factors to ensure quality and safety.

The cooling process for carbon dioxide storage tanks can vary depending on specific application requirements and process design. Here is an example of a general cooling process for carbon dioxide storage tanks: Initial Cooling: When carbon dioxide enters the tank, it is typically cooled initially to lower its temperature. This can be achieved by passing the carbon dioxide through a condenser or cooler. The cooling medium can be cold water or refrigerant. Tank Cooling: After carbon dioxide enters the tank, it is necessary to continue cooling the tank itself to maintain the liquid state of the carbon dioxide. This can be done by setting up coolers or cooling pipes externally and circulating the cooling medium (such as cold water or refrigerant). Temperature Control: During the tank cooling process, the temperature inside the tank needs to be controlled to ensure that carbon dioxide remains within an appropriate temperature range. This can be achieved through temperature sensors and control systems, which automatically control the temperature based on the set range. Insulation: To reduce heat transfer and energy loss, the tank is usually insulated. This can be done by setting up insulating materials (such as polyester foam or glass wool) externally to reduce heat conduction. Regular Inspection and Maintenance: In the cooling process of the tank, regular inspection and maintenance of cooling equipment and insulating materials are required to ensure their proper operation and effectiveness. This includes cleaning coolers, checking the integrity and effectiveness of insulating materials, etc. It should be noted that the specific cooling process for carbon dioxide storage tanks may vary due to different application scenarios and process requirements. In actual practice, process design and operation should be based on specific conditions to ensure the safety and performance of the tank. Consult engineers or storage experts for more information.
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