Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; central air conditioning and HVAC 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.
Before using the carbon dioxide storage tank, the following preparatory work must be carried out: - Inspect the tank: Check the tank's exterior for any signs of damage, corrosion, or oil leakage. Ensure the structural integrity and safety of the tank. - Check valves and pipelines: Verify that the tank's inlet and outlet valves and pipeline connections are normal, without any leaks or loose fittings. Ensure valve operation is smooth and reliable. - Inspect safety accessories: Check that the tank's safety accessories, such as safety valves, pressure sensors, and temperature sensors, are functioning properly. Confirm that their set parameters meet requirements. - Check the level measurement system: Verify the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure accurate level measurements. - Inspect the pressure relief device: Check that the tank's pressure relief device (such as the safety valve) is working properly. Confirm that the set pressure of the relief device meets requirements. - Check the gas quality: Ensure the quality of the carbon dioxide gas in the tank meets specifications, with no impurities or contaminants. - Inspect fire protection facilities: Ensure that fire protection facilities around the tank are intact and check that fire extinguishers, sprinkler systems, etc., are operating normally. - Train operators: Operators should receive training to understand the characteristics, operational requirements, and safety measures of the carbon dioxide storage tank. Training should include safe operation, leak handling, and emergency procedures. - The above preparatory work ensures the tank is in good condition before use and guarantees the safety and reliability of operations. When performing the preparatory work, follow relevant safety operating procedures and have it conducted by personnel.

Installation and operation of low-temperature carbon dioxide storage tanks must adhere to the following requirements: Installation Location Selection: When choosing the installation location for the tank, consider its weight and dimensions to ensure a solid and stable foundation. Additionally, keep it away from flammable, explosive materials, and high-temperature sources to ensure safety. Safety Distance: Maintain a certain safety distance around the tank for routine inspections, maintenance, and emergency response. The safety distance should comply with relevant safety regulations and standards. Connecting Pipes: Use an appropriate connection method for the tank and pipes to ensure tight and reliable connections with no leaks. The connecting pipes should meet relevant standards and specifications. Pressure Relief Devices: The tank should be equipped with pressure relief devices, such as safety valves, to control internal tank pressure. The set pressure of the pressure relief devices should meet relevant requirements and be inspected and maintained regularly. Sealability Inspection: Regularly check the tank's sealing performance to ensure no leaks. Pay special attention to the sealing of valves, pipe connections, and the tank itself. Temperature Control: Temperature control is necessary for low-temperature carbon dioxide storage tanks to maintain the低温 state inside. Ensure the surrounding environmental temperature is suitable and take corresponding insulation measures. Safety Protection: Set up appropriate safety protection facilities around the tank, such as guardrails and warning signs, to remind personnel of safety and prevent unauthorized access to the tank. Storage Capacity Control: Control the storage capacity of the tank according to actual needs to avoid exceeding the rated capacity. Exceeding the rated capacity may lead to excessive pressure in the tank, increasing safety risks.

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and注意事项: Regular inspections: Conduct regular checks of the tank's exterior, internal lining, valves, and pipeline connections. Pay attention to signs of corrosion, cracks, oil leaks, etc. Cleaning and draining: Regularly clean the inside of the tank to remove accumulated impurities and sediment. Also, regularly drain the tank to remove liquid and gas impurities inside. Corrosion protection measures: The exterior and inner lining of low-temperature liquid storage tanks should be treated with corrosion protection. Regularly inspect and maintain the corrosion protection layer or coating to ensure its integrity and effectiveness. Temperature and pressure control: Maintain the tank's temperature and pressure within the design limits. Avoid excessive or low temperatures and pressures that could damage the tank. Safety equipment checks: 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 systems: Regularly check and calibrate the level measurement system to ensure accuracy and reliability. Clean or replace level sensors as needed. Fire safety measures: Fire safety measures are 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 assessment and monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion conditions, and safety. Take appropriate maintenance and repair measures based on assessment results. Training operators: Operators should receive training on the characteristics, operation requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency response procedures.

Design requirements for carbon dioxide storage tanks typically include the following aspects: Pressure Vessel Design: Carbon dioxide storage tanks are usually designed as high-pressure vessels capable of withstanding high pressure. The design must comply with relevant standards and regulations, such as Standard GB150 "Steel Pressure Vessels." Material Selection: The choice of materials for the tank should consider the properties of carbon dioxide, such as high pressure, high oxidizing, and corrosive nature. Common materials include carbon steel and stainless steel, with selection based on specific working conditions and requirements. Safety Valves and Pressure Control: The tank should be equipped with safety valves and pressure control devices to ensure the internal pressure remains within a safe range. Safety valves should be selected according to design requirements and be regularly inspected and tested to ensure proper operation. Insulation Performance: As carbon dioxide needs to remain in a liquid state at low temperatures, the tank should have good insulation properties to prevent excessive evaporation of liquid carbon dioxide and energy loss. The selection and design of insulation materials and layers should consider working temperatures and environmental conditions. Leak Detection and Alarm: The tank should be fitted with leak detection equipment and an alarm system, along with corresponding monitoring devices. These devices can detect leaks promptly and trigger alarms to take appropriate action. Structural Strength and Stability: The tank's structural design should have sufficient strength and stability to withstand internal pressure and external loads. The structural design must comply with relevant standards and regulations, such as Standard GB12337 "Pressure Vessel Design Specifications." Safe Operation and Maintenance: The tank's design should consider ease of safe operation and maintenance, such as the placement of manholes, inspection openings, and drain ports.
Our company highly values technological innovation and research and development design, boasting 1 municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more, equipped with over 600 instruments and 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. The key products and technologies we have developed, such as temperature-pressure vessels for welding, biomass boiler emissions reduction, and waste heat utilization, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key projects, and Heze City innovative and excellent projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology, utilizing the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. After provincial-level scientific and technological achievement appraisal, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance!