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.
Dry ice is a frozen agent obtained by directly converting carbon dioxide gas into a solid under high pressure. It has several applications:  1. Frozen Food and Pharmaceuticals: Dry ice is widely used for the transportation and storage of frozen food and pharmaceuticals. Due to its low temperature and rapid cooling speed, it can effectively maintain the freshness and quality of food and medicines.  2. Special Effects and Stage Performances: Dry ice is also extensively used in special effects and stage performances. When it comes into contact with heat in the environment, it quickly turns into gas, producing a large amount of white smoke, creating a mysterious and dramatic atmosphere.  3. 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.  4. Laboratories and Scientific Research: Dry ice also finds applications in laboratories and scientific research. It can be used for freezing samples, preparing low-temperature experimental environments, and making cold traps and condensers, among others.  It is important to note that safety should be a priority when using dry ice. Avoid direct contact with skin and eyes, and do not use it in enclosed spaces to prevent the accumulation of carbon dioxide, which can lead to oxygen deficiency.

Carbon dioxide tanks are widely used in many industries. Here are some common sectors with examples of carbon dioxide tank usage: - Beverage and Food Industry: Carbon dioxide is used as a carbonating agent for beverages and foods, such as soda, beer, and soft drinks. Tanks are used for storing and supplying carbon dioxide to meet production line needs. - Industry: Carbon dioxide has various applications in industry, including anesthesia, respiration, and tissue freezing. Tanks are used for storing and supplying medical-grade carbon dioxide to meet facility requirements. - Fire Suppression: Carbon dioxide is extensively used in fire suppression systems, particularly in electrical and sensitive equipment. Tanks are used for storing and supplying fire suppression carbon dioxide. - Gas Industry: Carbon dioxide is also a significant product in the gas industry, used in the production of chemicals, metal processing, welding, and gas protection. Tanks are used for storing and supplying industrial-grade carbon dioxide. - Greenhouse Agriculture: Carbon dioxide can be used to promote plant growth in greenhouses, providing additional carbon dioxide concentration. Tanks are used to supply the required carbon dioxide for greenhouses. - Automotive Industry: Carbon dioxide is used for tire inflation and airbag systems in cars. Tanks are used for storing and supplying carbon dioxide to meet automotive manufacturing and repair needs. These are just some common industry examples. In reality, carbon dioxide tanks have wide applications in many other sectors, such as chemicals and frozen food industries. Specific usage may vary depending on industry needs and application scenarios.

Carbon dioxide has various applications in the new energy field, including some common uses: 1. Carbon Capture and Storage (CCS): This is a technology to reduce CO2 emissions, involving capturing CO2 from industrial sources and storing it in underground formations to prevent its entry into the atmosphere. It aids in decreasing greenhouse gas emissions and mitigating climate change. 2. Carbon Utilization: CO2 can be used to produce valuable chemicals and fuels. For example, through CO2 catalytic conversion technology, CO2 can be converted into fuels or chemicals like ethanol. This carbon utilization technique helps reduce dependence on traditional fossil fuels and promotes sustainable energy development. 3. Carbon Dioxide Batteries: Carbon dioxide batteries are a new battery technology that utilizes CO2 as an electrical material. By converting CO2 into electrical energy, these batteries can serve as a sustainable energy storage solution, aiding in the development of electric vehicles and renewable energy. 4. Carbon Dioxide Photocatalysis: This technology uses solar energy to convert CO2 into useful chemicals. With the help of photo-catalysts, CO2 and water can be transformed into combustible gases or organic compounds, thereby achieving the resource utilization of CO2. These applications aim to reduce CO2 emissions, enhance energy efficiency, and promote the development of sustainable energy. However, these technologies are still under development and research, requiring further technological breakthroughs and practical verification.

The testing and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation and extending their lifespan. Below is a general outline of the testing and maintenance procedures for liquid oxygen storage tanks: - Visual Inspection: Conduct regular visual inspections of the liquid oxygen storage tank, checking for corrosion, wear, cracks, or other issues on the tank's surface. Address any abnormalities promptly by repairing or replacing the affected parts. - Internal Cleaning: Regularly clean the interior of the liquid oxygen storage tank to remove accumulated impurities and dirt. Pay attention to using appropriate cleaning agents and tools to prevent damage to the tank. - Level Measurement: Perform regular level measurements to ensure the liquid oxygen level within the tank remains within a safe range. Use a level gauge or other measurement equipment and record the results. - Pressure Testing: Conduct regular pressure tests to verify the tank's pressure resistance. Control pressure and time during testing to ensure safety and accuracy. - Leak Detection: Regularly check for leaks to ensure the tank's sealing integrity. Use leak detection equipment, such as gas detectors or foam leak detection agents. - Valve and Pipe Inspection: Regularly inspect the valves and pipe connections of the liquid oxygen storage tank to ensure they are sealed properly and there are no leakage issues. Address any problems promptly by repairing or replacing them. - Maintenance Records: Keep records of the testing and maintenance activities for the liquid oxygen storage tank, including inspection dates, contents, and results. These records help track the tank's maintenance history and issue resolution. - Scheduled Maintenance: Develop a regular maintenance plan based on the tank's usage and requirements. This includes lubrication, tightening bolts, and replacing seals to ensure smooth operation.
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