Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City, with a registered capital of 50 million yuan and total assets of 500 million yuan. The company has 7 business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. Currently, it employs 710 staff, including 247 engineers and technicians and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The filling process for carbon dioxide storage tanks typically includes the following steps:
Preparation: Ensure the tank and filling equipment are in good working condition. Inspect the tank's appearance and valves for damage or leaks. Check the filling equipment's connecting pipes and valves for looseness or leaks.
Prepare liquid carbon dioxide: Extract liquid carbon dioxide from the supply source and transfer it to the tank of the filling equipment. Ensure the quality and purity of the liquid carbon dioxide meet the requirements.
Connect filling equipment: Attach the outlet pipe of the filling equipment to the tank's inlet valve. Ensure the connection is secure and there are no leaks.
Open valves: Activate the corresponding valves on the filling equipment and the tank to allow liquid carbon dioxide to flow into the tank. Adjust the valves as needed to control the filling speed and pressure.
Monitor liquid level: Use a liquid level sensor or other level measuring device to monitor the liquid carbon dioxide level in the tank in real-time. Ensure the level is within a safe range and avoid overfilling.
Filling complete: When the liquid level in the tank reaches the predetermined filling amount, close the corresponding valves on the filling equipment and the tank, and stop filling liquid carbon dioxide.
Inspection and cleaning: Check the valves and pipe connections during the filling process for leaks. Clean up any remaining liquid carbon dioxide around the filling equipment and tank.
Documentation and reporting: Record relevant information about the filling process, including the filling date, amount, and level monitoring results. Submit filling reports to relevant departments or management as needed.
The above is a general carbon dioxide storage tank filling process. Specific operations should be based on the tank's characteristics and requirements. When performing filling operations, follow relevant safety procedures and have trained professionals handle the task.
Carbon dioxide has several key applications in the battery industry:
1. Solvent in Electrolytes: Carbon dioxide can serve as one of the solvents in battery electrolytes. In certain types of batteries, it can be mixed with organic solvents to enhance the performance and stability of the electrolyte.
2. Protective Gas in Battery Manufacturing: During the battery manufacturing process, carbon dioxide can be used as a protective gas. For instance, during assembly and encapsulation, it can replace air to prevent oxidation and corrosion of battery materials due to oxygen and moisture in the battery.
3. Battery Performance Improvement: Carbon dioxide can improve battery performance by altering the atmosphere within the battery. For example, by injecting carbon dioxide gas into the battery, pressure and temperature can be regulated, enhancing the battery's cycle life and safety.
4. Carbon Dioxide Capture and Storage: The production of batteries generates carbon dioxide emissions. Carbon dioxide capture and storage technologies can be employed to reduce these emissions. By capturing and storing carbon dioxide, atmospheric emissions can be minimized, lowering environmental impact.
It is important to note that the application of carbon dioxide in the battery industry is continuously evolving and being researched. With technological advancements and innovation, there may be more breakthroughs and developments in the use of carbon dioxide in the battery field.
Low-temperature CO2 storage tanks are equipment used for storing and transporting low-temperature liquid CO2. Here are some key points about low-temperature CO2 storage tanks:
- Tank Structure: These tanks typically feature a double-walled design, with the inner wall for storing liquid CO2 and the outer wall for insulation. The interior is usually made of stainless steel or aluminum alloy, offering excellent corrosion resistance.
- Storage Temperature: The storage temperature usually ranges from -40°C to -196°C, depending on specific application requirements. Temperature control is crucial to ensure the stability and safety of the liquid CO2.
- Storage Capacity: The capacity of low-temperature CO2 storage tanks can be chosen based on actual needs, ranging from a few thousand to several tens of thousands of liters. The capacity selection should consider storage requirements, supply frequency, and spatial constraints.
- Safety Protection: Safety devices such as pressure relief valves, pressure sensors, and temperature sensors are required for low-temperature CO2 storage tanks to ensure internal pressure and temperature remain within safe limits.
- Transportation Methods: These tanks can be transported via road, rail, or ship. Proper insulation measures must be taken during transportation to maintain the low-temperature state of the liquid CO2 inside.
- Safe Operation: Operation of low-temperature CO2 storage tanks requires training and adherence to safety procedures. Operators should be familiar with the tank's characteristics and safety precautions to ensure safe and effective operation.
- Regular Inspection and Maintenance: Regular inspections and maintenance are necessary for low-temperature CO2 storage tanks, including visual inspections, valve and pipeline checks, and pressure relief device checks. Regular maintenance ensures the tank operates normally and safely.
- The above points provide some knowledge about low-temperature CO2 storage tanks. When using and operating these tanks, it is essential to follow relevant safety regulations and standards, and consult with experts to ensure safety and effectiveness.
Proper installation of a carbon dioxide storage tank requires the following steps:
Site Preparation: Select an appropriate site for installation, ensuring it is level, stable, and meets safety distance requirements. Clear the site of any obstructions and fire sources.
Foundation Construction: Construct the foundation based on the tank's size and weight. The foundation must be sufficiently strong and stable to support the tank's weight and pressure.
Tank Installation: Place the tank on the foundation, ensuring there is proper bedding and fastening equipment between the tank and 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 necessary safety equipment for the tank, such as safety valves, pressure sensors, and temperature sensors. Ensure these devices are correctly installed and connected.
System Testing: Conduct system tests after installation, including pressure and leak tests, to ensure the tank and piping system operate safely and efficiently.
Identification and Warning: Set up necessary identification and warning signs on the tank and piping system, including tank capacity and pressure information, to remind operators of safety.
Tank Maintenance: Perform regular maintenance and care for the tank after installation, including cleaning, lubrication, and inspections, to ensure proper operation and extend the tank's lifespan.
Installation of carbon dioxide storage tanks should be carried out by qualified installers, following relevant safety operation procedures and standards. Seek advice and guidance from experts.
Our company attaches great importance to technological innovation and research and development. 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 science and technology projects, Shandong Provincial key projects, and Heze City innovative and excellent projects. We have accumulated 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Li Yajiang 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. This technology has been appraised as reaching international standards in the field of deep cryogenic container manufacturing at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!




































