Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment; central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: - Regular Inspections: Conduct regular checks of the tank's exterior, internal lining, valves, and pipeline connections. Pay attention to signs of corrosion, cracks, and oil leaks. - Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas contaminants. - Corrosion Protection: The outer shell and inner lining of low-temperature liquid storage tanks should be treated with corrosion protection. Regularly inspect and maintain the integrity and effectiveness of the protective layer or coating. - Temperature and Pressure Control: Maintain the tank's temperature and pressure within the designed range. Avoid extreme temperatures and pressures that could damage the tank. - Safety Equipment Check: Inspect the tank's safety equipment, such as relief valves, pressure sensors, and temperature sensors, to ensure they are functioning properly. Verify that their set parameters meet requirements. - Maintenance of Level Measurement System: Regularly check and calibrate the level measurement system to ensure accuracy and reliability. As needed, clean or replace level sensors. - Fire Protection Measures: Fire protection is crucial for low-temperature liquid storage tanks. Ensure that fire protection facilities around the tank are in good condition and conduct regular fire drills. - Regular Assessments and Monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion, and safety aspects. Based on the assessment results, take appropriate maintenance and repair measures. - Operator Training: Operators should receive training to understand the characteristics, operation requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency procedures.

Carbon dioxide cylinder hydrostatic testing is a common quality inspection method used to verify the cylinder's sealing and pressure resistance. Below are the general steps for conducting a hydrostatic test on a carbon dioxide cylinder: Preparation: Ensure the cylinder interior is clean and the cylinder is emptied. Check the cylinder's valves, pipes, and connections to ensure they are sealed properly. Filling with Water: Fill the cylinder with water using tap water or other clean sources. Ensure the water is evenly filled to avoid bubbles or dead spots. Applying Pressure: Use a pressure pump or other pressure device to gradually increase the water pressure until it reaches the predetermined test pressure. The test pressure is typically determined based on the cylinder's design requirements and relevant standards. Maintaining Pressure: After reaching the test pressure, maintain it for a period, usually 15-30 minutes. During this time, observe for any leakage and check for leaks at the valves and connections. Releasing Pressure: Release the water pressure inside the cylinder, ensuring it is released slowly and evenly to avoid sudden pressure release causing shock. Inspection and Evaluation: After the pressure is released, inspect the cylinder's exterior and interior for any leakage. Evaluate the test results to ensure the cylinder's sealing and pressure resistance meet the requirements. It is important to note that when conducting hydrostatic tests, follow relevant safety operation procedures and standards to ensure safety and reliability during the testing process. Additionally, based on the cylinder's design and usage requirements, other types of tests can be conducted, such as pneumatic testing, ultrasonic testing, etc., to comprehensively assess the cylinder's quality and performance. Seek advice and guidance from a consultant.

Carbon dioxide tanks are classified as pressure vessels. Pressure vessels are sealed containers capable of withstanding internal pressure, used for storing and transporting gases, liquids, or mixtures. Carbon dioxide tanks are pressure vessels specifically designed for storing and transporting carbon dioxide, featuring unique designs and structures to ensure safe storage and use. Depending on design and application, carbon dioxide tanks can be either vertical or horizontal, with varying capacities and pressure ratings. When using carbon dioxide tanks, it is essential to comply with relevant regulations and standards to ensure safe operation and usage.

Construction features of carbon dioxide storage tanks mainly include the following aspects: Material selection: Carbon dioxide storage tanks are typically made of carbon steel or stainless steel to ensure their corrosion resistance and pressure-bearing performance. Welding process: The welding process of the tank is crucial for its quality and safety. The welding process should comply with relevant standards and specifications to ensure the quality and strength of the welds. Corrosion prevention measures: Due to the corrosive nature of carbon dioxide, both the internal and external surfaces of the tank should be treated for corrosion prevention. Common corrosion prevention measures include applying anti-corrosion paint, coating with a corrosion-resistant layer, or using anti-corrosion coatings. Safety valves and pressure sensors: The tank should be equipped with safety valves and pressure sensors to monitor and control the internal pressure of the tank, ensuring safe operation. Steps for correctly installing a carbon dioxide storage tank are as follows: Site preparation: Select a suitable site for installation, ensuring the site is level, stable, and meets safety distance requirements. Clear the site to ensure there are no obstructions or fire sources. Foundation construction: Construct the foundation according to the size and weight of the tank. The foundation should have sufficient strength and stability to support the weight and pressure of the tank. Tank installation: Place the tank on the foundation, ensuring there is appropriate padding and fastening devices between the tank and the foundation. Connect and secure the tank according to its design requirements. Pipe connection: Connect the tank to the piping system as needed. Ensure the connections are sealed properly to prevent leaks. Safety equipment installation: Install the required safety equipment for the tank, such as safety valves, pressure sensors, temperature sensors, etc. Ensure these facilities are correctly installed and connected.
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