Shandong Zhongjie Special Equipment Co., Ltd. (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, B-grade boiler installation and GB2, GC2 class pressure pipeline installation licenses, and equipment and machinery installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a council member of the Shandong Equipment Manufacturing Association. The company has also passed ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the U.S. ASME/U2 certification.
When filling liquid carbon dioxide into storage tanks, attention should be given to the following aspects: Safety Operation: During the filling process, it is mandatory to adhere to relevant safety operation procedures and standards. Operators must receive training to understand the operational 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 pipeline connections, and promptly repair or replace them if any abnormalities or damage are found. Filling Equipment: Select appropriate filling equipment, ensuring it complies with relevant standards and requirements. The filling equipment should have a safe and reliable design and operational function to ensure the safety and efficiency of the filling process. Filling Rate Control: Controlling the filling rate is crucial. Excessive filling speed can lead to high tank pressure, increasing safety risks. The filling rate 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 remains within a safe range. Leak Prevention: The sealing of valves and pipelines must be ensured during the filling process to prevent carbon dioxide leakage. Regularly inspect 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 liquid level, should be conducted during the filling process. This helps in timely detection of anomalies and appropriate adjustments and treatments. It is important to note that filling carbon dioxide storage tanks should be performed by trained operators and in accordance with relevant safety operation procedures and standards. Seek advice and guidance from experts.

There are several types of carbon dioxide storage tanks: - Atmospheric Pressure Tanks: These are containers designed for storing carbon dioxide at pressures close to atmospheric pressure. They are suitable for low-pressure applications such as the beverage industry and gas fire suppression systems. - High-Pressure Tanks: High-pressure tanks store carbon dioxide at pressures above atmospheric pressure and are commonly used in industrial applications like chemical processing and refrigeration. - Liquid Storage Tanks: These tanks liquefy and store carbon dioxide at temperatures below room temperature. They are typically used for large-scale storage of liquid carbon dioxide, such as in food freezing and pharmaceutical manufacturing. - Vapor Storage Tanks: Vapor storage tanks store liquid carbon dioxide in a gaseous state, with temperatures and pressures suitable for vaporization. They are often used to supply gaseous carbon dioxide, such as for carbonation in beverages and welding. - Insulated Tanks: Insulated tanks have excellent thermal insulation properties to minimize heat transfer and liquid evaporation. They are usually used for long-term storage of liquid carbon dioxide, such as in scientific research and refrigeration. Select the appropriate carbon dioxide storage tank type based on specific application needs and scenarios, and follow relevant regulations and standards for operation and management.

Carbon dioxide tank level gauges are devices used for measuring and monitoring the liquid level of CO2 within the tank. Depending on different working principles and application requirements, common types of CO2 tank level gauges include the following: - Buoy Level Gauge: Uses the floating and sinking of a buoy to indicate liquid level, measured through a mechanical device or electrical signal sensor connected to the gauge. - Pressure Level Gauge: Measures liquid level by utilizing the relationship between liquid pressure and level. Liquid pressure changes on the pressure sensor are measured to calculate the liquid level height. - Ultrasonic Level Gauge: Measures liquid level using the propagation time of ultrasound. An ultrasonic transmitter emits waves, and when the beam encounters the liquid surface, part of it is reflected back. The liquid level height is calculated by measuring the reflection time. - Capillary Level Gauge: Utilizes the capillary principle to measure liquid level. By inserting a thin tube into the liquid, the liquid rises within the tube, and the liquid level height is calculated based on the rise. - Level Gauge: Measures liquid level by reflecting waves. The transmitter emits waves, and when the beam meets the liquid surface, part of it is reflected back. The liquid level height is calculated by measuring the reflection time. The application of these level gauges in CO2 tanks can be selected based on specific needs and tank design. When selecting and installing level gauges, factors such as liquid properties, working environment, precision requirements, and ensuring compatibility with the tank's safe operation and monitoring system should be considered.

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: Regular Inspections: Periodically check the tank's exterior, internal lining, valves, and pipeline connections for signs of corrosion, cracks, or oil leaks. Be attentive to any issues. Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, perform regular drainage to clear liquid and gas contaminants inside the tank. Anti-Corrosion Measures: The outer shell and inner lining of low-temperature liquid storage tanks should be treated for corrosion resistance. Regularly inspect and maintain the integrity and effectiveness of the anti-corrosion layer or coating. Temperature and Pressure Control: The tank's temperature and pressure should be maintained within the design specifications. Avoid extremes that could damage the tank. Safety Equipment Checks: Inspect the tank's safety equipment, such as relief valves, pressure and temperature sensors, to ensure they are functioning properly. Verify that their set parameters meet requirements. Level Measurement System Maintenance: Regularly check and calibrate the level measurement system to ensure accuracy and reliability. Clean or replace level sensors as needed. Fire Prevention Measures: Fire prevention is crucial for low-temperature liquid storage tanks. Ensure that fire protection equipment around the tank is in good condition and conduct regular fire drills. Regular Assessments and Monitoring: Regularly assess and monitor the tank for structural integrity, corrosion, and safety. Take appropriate maintenance and repair actions based on assessment results. Operator Training: Operators should receive training on the characteristics, operation requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation procedures, leak management, and emergency response.
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