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 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 unit 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.
The testing and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation and extending their lifespan. Below is a general outline of the testing and maintenance procedures for liquid oxygen storage tanks: - Visual Inspection: Regularly inspect the exterior of liquid oxygen storage tanks for corrosion, wear, and cracks. Promptly repair or replace any anomalies found. - Internal Cleaning: Periodically clean the interior of liquid oxygen storage tanks to remove accumulated debris and dirt. Use appropriate cleaning agents and tools to prevent damage to the tank. - Level Measurement: Regularly measure the liquid level within the tank to ensure it remains within safe limits. Use a level gauge or other measurement devices, and record the results. - Pressure Testing: Regularly conduct 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 perform leak detection to ensure the tank's密封 integrity. Use leak detection equipment such as gas detectors or foam leak detectors. - Valve and Pipeline Inspection: Regularly check the valves and pipeline connections of liquid oxygen storage tanks to ensure proper sealing and no leakage. Repair or replace as necessary if issues are found. - Maintenance Records: Keep records of testing and maintenance activities, including dates, inspection content, and results. These 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, bolt tightening, and seal replacement to ensure normal operation.

Carbon Dioxide Storage Tank Commissioning typically involves the following steps and contents: - Tank Installation Inspection: Check if the tank's installation location, foundation, and support structure meet design requirements, ensuring stability and safety. - Pipeline Connection Inspection: Verify the tank's connections to inlet and outlet pipelines are secure, and that valves and pipelines can be opened and closed properly, ensuring the integrity and normal operation of the pipeline system. - Tank Cleaning and Emptying: Before commissioning, clean and empty the tank to ensure no impurities or residues are inside, and no other gases or liquids are present. - Tank Pressure Testing: Conduct pressure tests on the tank, including static pressure and leak tests. Static pressure testing involves increasing pressure to check the tank's sealing and pressure resistance. Leak testing checks for any leakage in the tank and pipeline system. - Control System Commissioning: Calibrate and adjust the tank's control system, including pressure, temperature, and level sensors, to ensure accuracy and reliability. - Safety System Testing: Test the tank's safety system, including safety valves, pressure gauges, and level indicators, to ensure normal operation and response. - Operating Parameter Adjustment: Adjust the tank's operating parameters, such as pressure, temperature, and level, based on actual needs and process requirements, to meet process specifications and safe operation. - Documentation and Reporting: Record and organize data, test results, and operational records during commissioning, generating a commissioning report for future reference and management. - The above are general steps and contents for carbon dioxide storage tank commissioning. Specific commissioning procedures may vary depending on tank design requirements and application scenarios. During commissioning, strictly adhere to relevant safety operation procedures and standards to ensure safety and effectiveness of the process.

The reasons for not allowing long-term emptying of CO2 storage tanks are mainly as follows: 1. Safety Risks: CO2 is a high-pressure gas that must maintain a certain pressure within the tank to remain in liquid form. Long-term release of CO2 from the tank into the atmosphere can lead to a decrease in tank pressure, potentially causing structural failure or explosions, posing safety hazards. 2. Resource Wastage: CO2 is a valuable resource with extensive applications in industry and other sectors. Long-term emptying of CO2 storage tanks results in resource wastage, which is not in line with sustainable development principles. 3. Environmental Impact: CO2 is a greenhouse gas, and long-term emptying can increase atmospheric CO2 concentration, exacerbating climate change and environmental issues. Therefore, to ensure safety, conserve resources, and protect the environment, CO2 storage tanks should be used and managed in accordance with specified procedures and requirements, avoiding long-term emptying. When CO2 in the tank is no longer needed, appropriate disposal methods, such as recycling, reuse, or safe emissions, should be employed.

Key measures to ensure the quality of CO2 storage tanks include the following aspects: 1. Selecting qualified suppliers: Choose suppliers with a good reputation and experience, ensuring that the tanks they provide meet relevant quality standards and specifications. This can be achieved by assessing suppliers' qualifications, referencing customer reviews, and conducting on-site inspections to select suitable suppliers. 2. Strict quality control: Implement strict quality control measures during the manufacturing process of the tanks. This includes selecting and inspecting raw materials, controlling production processes, monitoring process parameters, and conducting product testing and inspections to ensure the tanks meet quality requirements. 3. Compliance with standards and specifications: The design, manufacturing, and installation of the tanks should comply with relevant standards and specifications, such as industry standards and regulations. These include structural design, material selection, welding processes, corrosion prevention measures, and the configuration of safety valves and pressure sensors. 4. Regular inspections and maintenance: Tanks require regular inspections and maintenance during use to ensure safety and reliability. This involves checking the tank's appearance, sealing, valves, and pipe connections, conducting regular pressure tests and leak detection, and promptly addressing any abnormal situations. 5. Establishing a quality management system: Develop a comprehensive quality management system, including quality control processes, documentation, quality training, and internal audits. By establishing a quality management system, tank quality control and continuous improvement can be ensured. 6. Third-party testing and certification: Delegate tank testing and certification to third-party institutions to verify the quality and compliance of the tanks. Third-party testing and certification agencies typically have independence and objectivity, providing objective assessment and certification results. 7. Through the implementation of these measures, the quality of CO2 storage tanks can be effectively ensured, enhancing their safety and reliability.
Zhejiang Jietec adheres to the grand vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," wholeheartedly devoting itself to the development of green energy equipment. We offer society products and services with high performance and affordability!