Shandong Zhongjie Special Equipment specializes in products such as fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation deep-freeze pressure vessels like LNG tanks, oxygen-nitrogenargon tanks, CO2 tanks, etc.; pressure vessel products including denitrification engineering equipment, heat storage equipment, and complete chemical equipment sets; as well as central air conditioning and HVAC equipment such as ground (water) source heat pumps, air-source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
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 the supplier's 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 the selection and inspection of raw materials, control of production processes, monitoring of process parameters, product testing and verification, to ensure the tanks meet quality requirements. 3. Compliance with Standards and Regulations: The design, manufacturing, and installation of the tanks should comply with relevant standards and regulations, such as industry standards and specifications. These include the structural design of the tank, material selection, welding techniques, corrosion prevention measures, safety valves, and configuration of pressure sensors. 4. Regular Inspections and Maintenance: Regular inspections and maintenance of the tanks are necessary during use to ensure safety and reliability. This involves checking the tank's appearance, seals, valves, and pipeline connections, conducting regular pressure tests and leak detection, and promptly addressing any anomalies. 5. Establishing a Quality Management System: Establish 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: Entrust third-party agencies to conduct testing and certification of the tanks to verify their quality and compliance. Third-party testing and certification agencies are typically independent and impartial, providing objective evaluation 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.

CO2 flooding is a commonly used enhanced oil recovery technique, designed to increase the recovery rate of oil fields. It works by injecting CO2 gas into the reservoir to alter its physical and chemical properties, thereby promoting flow and enhancing recovery. The working principle of CO2 flooding is as follows: Dissolution Principle: CO2 has a high solubility in oil. When CO2 gas is injected into the reservoir, it dissolves within the oil, reducing viscosity and surface tension, making it easier to flow. Expulsion Drive Principle: After CO2 gas is injected into the reservoir, it expands to form a gas phase, increasing the internal pressure and pushing the oil towards the wellbore. Additionally, CO2's high permeability can improve reservoir permeability, enhancing flowability. Chemical Reaction Principle: CO2 reacts with certain components in the oil, producing soluble substances that further reduce viscosity and improve flowability. CO2 flooding technology offers certain advantages in oil field development, such as: Environmental Friendliness: CO2 is a clean, non-toxic, and renewable gas. Using CO2 flooding can reduce environmental pollution. Economic Viability: CO2 flooding can increase the recovery rate of oil fields, boost production, and thus enhance economic benefits. Sustainability: CO2 can be separated from air or captured and stored from industrial flue gases, enabling the recycling of CO2 and ensuring sustainability. It should be noted that the application of CO2 flooding technology requires consideration of reservoir characteristics, geological conditions, and economic feasibility factors. Before implementing CO2 flooding, a comprehensive reservoir evaluation and engineering design must be conducted to ensure the effectiveness and safety of the technology.

When filling liquid carbon dioxide into storage tanks, attention should be paid to the following aspects: Safety Operation: During the filling process, it is mandatory to follow relevant safety operation procedures and standards. Operators should receive training to understand the operation requirements and safety measures of the filling equipment and operate strictly according to the procedures. Tank Inspection: Before filling, the tank must be inspected to ensure its integrity and safety. Check the tank's appearance, sealing, valves, and pipe connections, and if any abnormalities or damages are found, they should be repaired or replaced promptly. Filling Equipment: Select appropriate filling equipment, ensuring it meets relevant standards and requirements. The filling equipment should have a safe and reliable design and operational functions to ensure the safety and efficiency of the filling process. Filling Speed Control: Controlling the filling speed is crucial. Excessive filling speed can lead to high tank pressure, increasing safety risks. The filling speed should be controlled based on the tank's capacity and design requirements to ensure safe filling. Pressure Control: The tank's pressure must be strictly controlled during the filling process. The filling equipment should be equipped with pressure sensors and safety valves to ensure the internal pressure of the tank stays within a safe range. Leak Prevention: During the filling process, it must be ensured that the valves and pipes are sealed to prevent the leakage of carbon dioxide. Regularly check and replace seals, and promptly address any leakage issues. Monitoring and Recording: Real-time monitoring and recording of key parameters, such as pressure, temperature, and level, should be conducted during the filling process. This helps to detect abnormalities in a timely manner and make corresponding adjustments and treatments. It is important to note that liquid carbon dioxide storage tanks should be operated by trained personnel and followed the relevant safety operation procedures and standards. Seek advice and guidance from experts.

Common protection techniques for carbon dioxide storage tanks include: - Fire and Explosion Prevention Measures: Establish a fire-resistant buffer zone around the tank, keeping it away from ignition sources and flammable materials. The tank itself should have fire and explosion prevention measures, such as fire-resistant coatings and explosion-proof devices, to prevent fires and explosions. - Leak Detection and Alarm Systems: The tank should be equipped with a leak detection and alarm system for timely detection and reporting of any leaks. Regularly inspect and maintain the leak detection equipment to ensure proper functioning. - Regular Inspections and Maintenance: Regularly check the tank's exterior, valves, connectors, etc., to ensure they are intact. Conduct regular leak inspections and pressure tests to ensure the tank meets safety requirements. - Emission Treatment: Treat the exhaust gas produced by the carbon dioxide storage tank to prevent environmental pollution. Implement appropriate emission treatment measures, such as collecting and treating exhaust gas. - Static Electricity Protection: Take static electricity protection measures to avoid static accumulation and discharge. Use anti-static equipment and tools to ensure static safety during operations. - Safety Training and Awareness: Provide safety training for operators to enhance their awareness and ability to safely handle carbon dioxide storage tanks. Conduct regular safety training and drills to prepare for emergencies. - Management Records and Documentation: Establish comprehensive management records and documentation, including the tank's usage, inspection, and maintenance records. Regularly review and update these records to ensure proper safety and maintenance management. It should be noted that the above are common protection techniques, which may vary depending on the tank type and application. When using carbon dioxide storage tanks, operate according to relevant specifications and standards and consult with experts to ensure safety and effectiveness.
Our company highly values technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with test facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. We possess over 600 units of various equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and others. Our key products and technologies, such as welding for temperature and pressure vessels, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong key projects, and Heze City innovation and excellence projects. We have accumulated 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc+filling wire argon arc welding (PAW-GTAW) technique, which has been appraised as reaching international standards in the field of deep cryogenic container manufacturing. Choose ZJ Special Equipment, and let's create brilliance together!