Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company has seven 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 Yangtze 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 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, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Common defects that may occur during the use of carbon dioxide tanks include deformation. Here are some causes that may lead to tank deformation: Overpressure: When the internal pressure of the tank exceeds its design pressure, it may deform. This could be due to operational errors, system failures, or other reasons. Temperature Changes: Carbon dioxide tanks undergo thermal expansion and contraction under temperature variations. If the temperature changes are too extreme or rapid, it may cause the tank to deform. Internal Corrosion: If there are corrosion issues within the tank, the corrosion can damage the structural integrity of the tank, leading to deformation. External Damage: External impacts, compressions, or other physical damages may cause the tank to deform. Incorrect Installation or Use: Incorrect installation or usage methods may lead to uneven stress on the tank, causing deformation. Tank deformation may reduce the structural integrity of the tank and even pose risks of leakage or rupture. Therefore, it is important to regularly inspect and maintain the integrity of the tank, as well as to follow proper operational and installation procedures. If tank deformation or other defects are detected, or if there is suspicion of such issues, use of the tank should be immediately stopped, and professional assistance should be sought for inspection and repair. Do not attempt to repair or continue using a defective tank yourself to ensure operational safety.

Detailed parameters of CO2 storage tanks can vary based on specific design and operational requirements. Here are some common parameters for CO2 storage tanks: - Capacity: The capacity of CO2 storage tanks can vary according to demand, with common ranges from a few thousand to tens of thousands of liters. - Pressure: The design working pressure of CO2 storage tanks typically falls between 15-25 MPa (Megapascals), with the specific pressure depending on the application and operational needs. - Material: CO2 storage tanks are usually made from high-strength materials such as carbon steel or stainless steel. The choice of material depends on the storage environment and requirements. - Dimensions: The physical dimensions of CO2 storage tanks also vary based on capacity and design. Common shapes include cylindrical, spherical, or cuboid. - Level Control: CO2 storage tanks are often equipped with level control systems to monitor and control the liquid level of CO2. These systems typically include level sensors and control valves. - Pressure Control: Internal pressure control systems are usually installed in CO2 storage tanks to monitor and control the gas pressure inside. These systems often include pressure sensors and safety valves. It's important to note that specific CO2 storage tank parameters can differ based on the manufacturer, application scenario, and standards. When selecting and using CO2 storage tanks, it is essential to follow relevant safety operating procedures and guidelines, and consult with experts to obtain accurate parameter information.

In accordance with China's "Regulations for Safety Supervision of Pressure Vessel Technology," carbon dioxide storage tanks are classified as Category II pressure vessels. Under these regulations, pressure vessels are categorized as follows: - Category I pressure vessels: Those with working pressures of 10 MPa (megapascals) or higher, such as steam boilers and pressure vessels. - Category II pressure vessels: Those with working pressures between 0.1 MPa and 10 MPa, including air compressors and liquefied gas storage tanks. - Category III pressure vessels: Those with working pressures between 0.05 MPa and 0.1 MPa, such as storage tanks. - Category IV pressure vessels: Those with working pressures below 0.05 MPa, such as gas cylinders. Based on this classification, carbon dioxide storage tanks typically have working pressures above 0.1 MPa, thus falling under Category II pressure vessels. It is important to note that specific classification criteria may vary due to different regional regulations and standards. When using and managing carbon dioxide storage tanks, it is necessary to comply with the corresponding regulatory and standard requirements.

If a leak in the CO2 storage tank is detected, the following procedures should be taken immediately: Confirm the leak location: First, identify the exact location of the leak, which can be done through auditory detection, observation, or using gas detection equipment. Emergency response: Upon discovering a leak, implement emergency measures to ensure personnel safety. Evacuate people to a safe area and notify relevant personnel and emergency agencies. Cut off the gas supply: Quickly shut off the CO2 supply source by closing valves or cutting off power to stop the supply. Locate the leak: In a safe environment, use gas detection equipment or visual inspection to find the leak. Apply soap solution or other leak detection agents to potential leak areas and observe for bubble formation. Seal the leak: Once the leak location is confirmed, take temporary sealing measures, such as using tape, sealant, or other reliable sealing materials for temporary repair. Ensure the sealing is secure and effective in preventing gas leakage. Repair and maintenance: In a safe condition, carry out further repairs and maintenance as needed. Depending on the nature of the leak, it may be necessary to replace seals, repair or replace valves, etc. Repair and maintenance work should be performed by qualified personnel. Inspection and testing: After repairs and maintenance, conduct leak detection and testing to ensure the leak has been fully repaired and the tank's safety performance has returned to normal. It is important to handle CO2 tank leak issues with caution and follow relevant safety regulations and procedures. If lacking the necessary knowledge and skills, contact a professional for assistance.
ZJ Special Equipment adheres to the great vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We commit to society with high-quality, cost-effective products and services!