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 ventilation 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.
Pressure Vessel Standards: Liquid carbon dioxide storage tanks are generally considered pressure vessels, and their design, manufacture, and use should comply with the relevant pressure vessel standards. In China, common pressure vessel standards include GB150 "Steel Pressure Vessels" and GB18435 "Storage Tanks." Safety Standards: The use of liquid carbon dioxide storage tanks must adhere to relevant safety standards and regulations. For instance, in China, the safe operation of liquid carbon dioxide storage tanks should follow standards such as GB50028 "Design Code for Petroleum and Chemical Enterprises" and GB50016 "Fire Prevention Code for Building Design." Inspection and Testing Standards: The inspection and testing of liquid carbon dioxide storage tanks should comply with the corresponding standards and regulations. For example, regular inspections of liquid carbon dioxide storage tanks can refer to standards like GB/T 19638 "Regulations for Periodic Inspection of Pressure Vessels." Environmental Protection Standards: The use of liquid carbon dioxide storage tanks must comply with relevant environmental protection standards and regulations. For example, in China, the exhaust emissions from liquid carbon dioxide storage tanks should meet standards such as "Air Pollutant Emission Standards."

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 hydrostatic testing on carbon dioxide cylinders: Preparation: Ensure the cylinder interior is clean and the cylinder is emptied. Check the cylinder's valves, pipes, and connections to ensure they are well-sealed. Fill with Water: Fill the cylinder with water, using tap water or another clean source. Ensure the water is evenly filled to avoid bubbles or dead spots. Apply Pressure: Use a pressure pump or another pressure device to gradually increase the water pressure until it reaches the predetermined test pressure. The test pressure is usually determined based on the cylinder's design requirements and relevant standards. Maintain Pressure: After reaching the test pressure, hold it for a period, typically 15-30 minutes. During this time, observe for any leakage and check for leaks in the valves and connections. Release Pressure: Release the water pressure inside the cylinder, ensuring it is released slowly and evenly to avoid sudden pressure release causing shock. Inspection and Assessment: After pressure release, inspect the cylinder's exterior and interior for any leakage. Assess the test results to ensure the cylinder's sealing and pressure resistance meet requirements. Note that when conducting hydrostatic testing, it is important to follow relevant safety operating procedures and standards. 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 gas pressure testing and ultrasonic testing, to comprehensively evaluate the cylinder's quality and performance. Seek advice and guidance from consulting experts.

Detailed specifications for CO2 storage tanks can vary depending on specific design and usage requirements. Here are some common parameters for CO2 storage tanks: - Capacity: The capacity of CO2 storage tanks can range from a few thousand to tens of thousands of liters, depending on the need. - Pressure: The design working pressure of CO2 storage tanks typically falls between 15-25 MPa (Megapascals), with the specific pressure depending on the application scenario and requirements. - Material: CO2 storage tanks are usually made of high-strength materials such as carbon steel or stainless steel, with material choice depending on the storage environment and requirements. - Dimensions: The physical dimensions of CO2 storage tanks can vary based on capacity and design, with common shapes including cylindrical, spherical, or cuboid. - Level Control: CO2 storage tanks often come equipped with level control systems for monitoring and controlling the liquid CO2 level, typically including level sensors and control valves. - Pressure Control: An internal pressure control system is usually present in CO2 storage tanks to monitor and control the gas pressure inside, typically including pressure sensors and safety valves. It's important to note that specific parameters for CO2 storage tanks can differ based on manufacturers, application scenarios, and standards. When selecting and using CO2 storage tanks, it is essential to follow relevant safety operating procedures and guidelines, and consult with experts to obtain accurate parameter information.

Dry ice is a solid refrigerant obtained by directly converting carbon dioxide gas under high pressure. It has several applications:   Refrigeration of Food and Pharmaceuticals: Dry ice is widely used for the transportation and storage of food and pharmaceuticals. Due to its low temperature and rapid cooling speed, it can effectively maintain the freshness and quality of food and medicines.   Special Effects and Stage Performances: Dry ice is also extensively used in special effects and stage performances. When it comes into contact with the heat in the environment, it rapidly converts to gas, producing a large amount of white smoke, creating a mysterious and dramatic atmosphere.   Cleaning and Disinfection: Dry ice can also be used for cleaning and disinfection. When it comes into contact with surfaces, the low temperature and physical impact of the vaporization process can effectively remove dirt, bacteria, and viruses without leaving residues.   Laboratories and Scientific Research: Dry ice is also applied in laboratories and scientific research. It can be used to freeze samples, create low-temperature experimental environments, and make cold traps and condensers, among other things.   It is important to note that safety should be observed when using dry ice, avoiding direct contact with skin and eyes, and not using it in enclosed spaces to prevent the accumulation of carbon dioxide and oxygen deficiency.
Our company attaches great importance to technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. 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 scientific and technological innovation projects, key projects in Shandong Province, 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. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement appraisal, the technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!