Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation deep-chilled 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, and 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.
Prior to using the carbon dioxide storage tank, the following preparations must be made: - Inspect the tank: Check the tank's appearance for any damage, corrosion, or oil leakage. Ensure the structural integrity and safety of the tank. - Check valves and pipes: Verify that the tank's inlets and outlets, as well as pipe connections, are functioning normally with no leaks or loose fittings. Ensure valve operation is smooth and reliable. - Inspect safety accessories: Check the functionality of safety accessories like relief valves, pressure sensors, and temperature sensors. Confirm that their set parameters meet requirements. - Inspect the level measurement system: Assess the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure precise level readings. - Check the pressure relief device: Verify that the tank's pressure relief device (e.g., relief valve) is operating correctly. Confirm that the set pressure meets requirements. - Check the gas quality: Ensure the carbon dioxide gas in the tank meets quality standards, free of impurities or contaminants. - Inspect fire protection equipment: Ensure that fire protection equipment around the tank is in good condition and check that fire extinguishers, sprinkler systems, etc., are functioning properly. - Train operators: Operators should receive training on the characteristics, operation requirements, and safety measures of the carbon dioxide storage tank. Training should include safe operation, leak handling, and emergency procedures. These preparations ensure the tank is in good condition before use and guarantee the safety and reliability of operations. When conducting these preparations, follow relevant safety operating procedures and have them performed by trained personnel.

Installation and operation of low-temperature carbon dioxide storage tanks must adhere to the following requirements: Installation Location Selection: When selecting the installation location for the tank, consider the tank's weight and dimensions to ensure a solid and stable foundation. Additionally, maintain a safe distance from flammable and explosive materials and high-temperature sources to ensure safety. Safety Distance: Maintain a certain safety distance around the tank for daily inspections, maintenance, and emergency procedures. The safety distance should comply with relevant safety regulations and standards. Connection Pipes: Use appropriate connection methods between the tank and pipes to ensure secure and reliable connections with no leaks. The connection pipes should meet relevant standards and regulations. 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. Sealing Inspection: Regularly inspect 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: Low-temperature carbon dioxide storage tanks require temperature control to maintain the internal低温 state. 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 cause excessive tank pressure, increasing safety risks. Storage

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: - Regular Inspections: Regularly check the tank's exterior, internal lining, valves, and pipe connections. Pay attention to signs of corrosion, cracks, or oil leaks. - Cleaning and Draining: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities. - Corrosion Prevention: The exterior and inner lining of low-temperature liquid storage tanks should be treated with corrosion prevention measures. Regularly inspect and maintain the corrosion protection layer or coating to ensure its integrity and effectiveness. - Temperature and Pressure Control: The temperature and pressure of the low-temperature liquid storage tank should be controlled within the design range. Avoid excessive or low temperatures and pressures that could damage the tank. - Safety Equipment Inspection: Check the tank's safety equipment, such as safety 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 inspect 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 fire drills regularly. - Regular Assessments and Monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion, and safety aspects. Take appropriate maintenance and repair measures based on assessment results. - Operator Training: Operators should receive training to understand the characteristics, operational requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency procedures.

The 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 Valve and Pressure Control: The tank should be equipped with a safety valve and pressure control devices to ensure internal pressure remains within a safe range. The safety valve should be selected according to design requirements and regularly inspected and tested to ensure proper operation. Insulation Performance: Since 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 equipped with leak detection devices and alarm systems, along with corresponding monitoring equipment. These devices can detect leaks in a timely manner and trigger alarms to take appropriate measures. Structural Strength and Stability: The structural design of the tank 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 Specification." Safe Operation and Maintenance: The design of the tank should consider the ease of safe operation and maintenance, such as the placement of manholes, inspection openings, and drain outlets.
Our company attaches great importance to technological innovation and R&D design. We have 1 municipal-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. We have over 600 types of 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 more. The key products we have developed, such as temperature and pressure vessel welding, 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 Provincial Key Projects, and Heze City Innovation and Excellence projects. We have accumulated a total of 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 Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement evaluation, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!