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 director 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.
Before using a CO2 storage tank, certain inspection and filling points must be addressed. Here are some common precautions: - Inspect the tank's exterior: Check for any signs of obvious damage, corrosion, or leaks. Ensure the tank shell is intact. - Check valves and fittings: Verify that the tank's valves and fittings are securely fastened and there are no leaks. Ensure their proper functioning. - Inspect the pressure gauge: Check if the tank's pressure gauge is functioning correctly and the readings are accurate. Replace or repair if abnormal. - Check the level indicator: Confirm that the tank's level indicator is working properly and accurately displays the level. Repair or replace if there are issues. - Inspect the pressure relief device: Check if the tank's pressure relief device (e.g., safety valve) is operating correctly and the set pressure meets requirements. Repair or replace if abnormal. - Inspect the filling equipment: Verify that the filling equipment (e.g., filling pipes, pumps) is functioning properly with no leaks or blockages. Ensure safety and reliability. - Filling operation: During the filling process, consider the following points: - Control the filling speed, avoiding too fast or too slow. - Control the filling pressure, not exceeding the tank's rated pressure. - Monitor the level, ensuring proper filling to the appropriate level. - Regularly inspect filling equipment and valves to ensure proper operation. - Safety measures: Adhere to relevant safety regulations and procedures during filling. Operators should wear appropriate protective gear, such as static-proof clothing, gloves, etc. - Note: Specific inspection and filling points may vary depending on the tank type and application. Before using a CO2 storage tank, check and operate according to relevant specifications and standards, and consult with experts to ensure safety and effectiveness.

In recent years, the peak development of low-temperature liquid storage tanks can be attributed to the following factors: increasing energy demand: With economic growth and population expansion, the demand for energy has surged. Low-temperature liquid storage tanks are primarily used for storing liquefied natural gas (LNG), liquid oxygen (LOX), liquid nitrogen (LIN), and other low-temperature liquid energy sources to meet the growing energy needs. Greenhouse gas emission reduction: These tanks can store and transport liquid carbon dioxide (CO2) for carbon capture and storage (CCS) technology, reducing greenhouse gas emissions. As environmental protection and climate change concerns rise, the demand for low-temperature liquid storage tanks in the CCS field has also increased. Industrial development needs: The application of low-temperature liquid storage tanks in the industrial sector is also on the rise. For instance, in industries such as chemicals, pharmaceuticals, food and beverage, there is a need to store and transport low-temperature liquid raw materials or products, like liquid nitrogen, liquid oxygen, and liquid ethylene. With the development of these industries, the demand for low-temperature liquid storage tanks has also grown accordingly. Technological advancement and innovation: In recent years, there have been continuous advancements and innovations in the design, manufacturing, and transportation of low-temperature liquid storage tanks. The application of new materials, optimization of tank structures, and improvements in safety control systems have made these tanks safer and more reliable, further driving their peak development. In summary, factors such as increased energy demand, greenhouse gas emission reduction, industrial development needs, and technological advancement and innovation have collectively propelled the peak development of low-temperature liquid storage tanks in recent years. As related industries and technology continue to evolve,

In daily operation, CO2 storage tanks require protection and maintenance to ensure proper functioning and safety. Here are some common protection and maintenance methods: - Visual Inspection: Regularly check the tank's exterior for corrosion, wear, and cracks. Take prompt repair actions upon discovering any anomalies. - Sealing Integrity Check: Periodically inspect the tank's sealing performance, particularly at valves, pipe connections, and the tank itself. Ensure there are no leaks, and address any promptly. - Temperature Control: Maintain a suitable ambient temperature around the tank and implement insulation measures to ensure the tank's internal低温 condition. - Pressure Relief Device Inspection: Regularly check the tank's pressure relief devices, such as safety valves, to ensure they are functioning correctly. Verify that the set pressure meets requirements and perform regular maintenance and replacements. - Level Monitoring: Regularly monitor the tank's liquid level to ensure accurate measurements. Take immediate action to investigate and address any abnormal levels. - Regular Cleaning: Clean the tank's interior regularly to remove accumulated impurities and dirt. Exercise safety during cleaning and avoid using flammable or corrosive substances. - Regular Testing: Conduct regular pressure tests and leak detections on the tank to ensure safety performance meets standards. The frequency and methods should comply with relevant regulations and standards. - Storage Capacity Control: Control the tank's storage capacity to prevent exceeding the rated capacity. Overfilling can lead to excessive pressure and increased safety risks. - Note: Specific protection and maintenance methods may vary depending on the tank type and application.

Common defects that may occur during the operation of pressure vessels include corrosion. Here are some reasons that could lead to corrosion in pressure vessels: Chemical Media: Certain chemical media are corrosive, such as acids, bases, and salts. When these media come into contact with the vessel material, corrosion may occur. Humidity and Moisture: High humidity environments or long-term exposure to moisture can cause the surface of the vessel to corrode, especially in the presence of oxygen, which can accelerate the corrosion rate. Rusting: When the protective layer on the vessel surface (such as coatings or plating) is damaged or destroyed, rusting may occur. Rusting can damage the surface of the vessel and may lead to further corrosion. Electrochemical Corrosion: When different metals or metal and non-metallic materials come into contact, an electrochemical corrosion cell may form, leading to localized corrosion on the vessel surface. Welding Defects: Defects like weld porosity and cracks may be introduced during the welding process, which can become starting points for corrosion. Corrosion weakens the structural integrity of the vessel, increasing the risk of leakage or rupture. Therefore, it is important to regularly inspect and maintain the corrosion-resistant layer, coating, or plating of pressure vessels. If corrosion issues are found, immediate measures should be taken to repair or replace the damaged parts. Additionally, selecting appropriate materials and corrosion prevention measures, as well as proper operation and maintenance methods, can reduce the risk of corrosion in pressure vessels. Adhering to relevant safety operating procedures and standards ensures the safe operation of pressure vessels.
ZJ Special Equipment adheres to the grand vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," wholeheartedly commits to the development of the green energy equipment industry, and dedicates high-value products and services to society!