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 of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
When using carbon dioxide storage tanks, the following safety procedures must be adhered to ensure safety: Tank Operator Training: All operators must receive training to understand the characteristics, operational requirements, and safety measures of carbon dioxide storage tanks. Training should include safe tank operation, leak handling, emergency response plans, etc. Safety Operating Procedures: Establish and follow relevant safety operating procedures, including tank startup, shutdown, inspection, and maintenance. Operators should operate according to the procedures to ensure safe tank operation. Leak Handling: Develop a leak handling program, including leak detection, emergency shutdown, and isolation of the leak source. Operators should be familiar with the leak handling procedures and able to respond quickly and correctly to leak incidents. Fire Prevention Measures: Carbon dioxide is flammable, so fire prevention measures must be taken when using it. Smoking, open flame operations, or placing flammable materials near the tank are prohibited. Ensure that fire protection equipment around the tank is in good condition and that fire drills are conducted regularly. Waste Gas Emission: When using carbon dioxide storage tanks, waste gases should be emitted properly to avoid the accumulation of carbon dioxide in enclosed spaces, which can cause asphyxiation and safety risks. Ensure that the waste gas emission system is unobstructed and operating correctly. Regular Inspections and Maintenance: Regularly inspect the tank's appearance, seals, valves, and pipe connections. If any abnormalities or damage are found, repairs or replacements should be made promptly. Also, regularly inspect and maintain the tank's safety valves, pressure sensors, and other accessories. Emergency Response Plans: Develop and implement emergency response plans, including procedures for handling leak incidents, evacuation, and first aid measures. Operators should be familiar with the emergency response plans and conduct drills regularly. Monitoring and Alarm Systems: Install and maintain monitoring and alarm systems for the tank.

When using carbon dioxide storage tanks, pay attention to the following aspects:  Safety Operation: Adhere to relevant safety operation procedures and standards, ensuring that operators possess the necessary safety knowledge and skills. When using the tank, be mindful of safety risks such as leaks, explosions, and fires.  Tank Pressure Control: Monitor and control the tank's pressure to ensure it remains within a safe range. Avoid exceeding the tank's rated pressure to prevent破裂 or leakage.  Level Monitoring: Regularly monitor the liquid level within the tank to ensure adequate carbon dioxide. Avoid overfilling or underfilling to maintain an appropriate level.  Static Control Measures: Implement static control measures to prevent static buildup and discharge. Use static-dissipative equipment and tools to ensure static safety during operation.  Tank Maintenance: Regularly inspect and maintain the tank, including appearance, valves, and connections. Ensure the tank is intact to prevent leaks and damage.  Emission Treatment: Handle the exhaust gases produced by the carbon dioxide storage tank to avoid environmental pollution. Take appropriate emission treatment measures, such as collecting and treating exhaust gases.  Storage Records: Document the tank's usage, including filling dates, quantities, and inspection records. Regularly conduct tank inspections and maintenance, and retain relevant records.  Training and Awareness: Train operators to enhance their awareness and ability to safely operate carbon dioxide tanks. Conduct regular safety training and drills to respond to emergencies.  Note: The above are common considerations; specific precautions may vary depending on the tank type and application. When using carbon dioxide storage tanks, operate according to relevant specifications and standards, and consult experts to ensure safety and effectiveness.

Carbon dioxide tanks possess the following characteristics: - High-pressure Vessel: Carbon dioxide tanks are typically designed as high-pressure vessels, capable of withstanding high pressure. This is because carbon dioxide requires high pressure at room temperature to maintain a liquid state. - High Oxidizing Property: Carbon dioxide has a high oxidizing property, supporting combustion. Therefore, when using and storing carbon dioxide, precautions must be taken to prevent contact to avoid the risk of fire and explosion. - Low-Temperature Storage: Carbon dioxide is in a gaseous state at room temperature but can be compressed into a liquid at lower temperatures. Thus, carbon dioxide tanks usually need to have good insulation properties to maintain the low-temperature liquid state of the stored carbon dioxide. - High Density: Liquid carbon dioxide has a high density, allowing for the storage of large amounts of carbon dioxide in a relatively small volume. This makes carbon dioxide tanks useful in scenarios requiring substantial carbon dioxide supply. - Safety Valves and Pressure Control: To ensure the internal pressure of the tank remains within a safe range, carbon dioxide tanks are usually equipped with safety valves and pressure control devices. These devices monitor and control the internal pressure of the tank to prevent excessive pressure from causing the tank to burst. - Corrosiveness: Carbon dioxide has some corrosive properties, especially in high humidity environments. Therefore, the materials and corrosion prevention measures of the tank need to consider the corrosiveness of carbon dioxide to ensure the tank's durability and safety. These characteristics make carbon dioxide tanks widely applicable in various industries, such as the food and beverage industry, fire suppression, and gas industry. When using carbon dioxide tanks, it is necessary to follow relevant safety operation procedures and standards to ensure operational safety.

Carbon dioxide has extensive applications in the field of food freezing. Below are some common uses of carbon dioxide in food freezing: 1. Frozen Food Processing: Carbon dioxide is commonly used in the processing of frozen foods. By exposing the food to liquid carbon dioxide, the temperature can be rapidly reduced, achieving quick freezing. This quick freezing effectively preserves the quality, texture, and nutritional value of the food. 2. Frozen Storage: Carbon dioxide is also employed in the frozen storage of food. During the storage process, placing the food in a low-temperature environment and utilizing the freezing effect of carbon dioxide can lower the food's temperature below the freezing point, thereby extending the shelf life of the product. 3. Frozen Transportation: Carbon dioxide plays a crucial role in frozen food transportation. By using carbon dioxide freezing technology during transportation, the low-temperature state of the food can be maintained, preventing quality loss. 4. Frozen Display: In the retail food industry, carbon dioxide is also used in frozen display cabinets. By injecting carbon dioxide gas into the cabinets, the low-temperature state of the food can be preserved, showcasing the product while maintaining freshness and quality. Compared to traditional freezing techniques, carbon dioxide freezing offers advantages such as faster freezing, better freezing effects, and minimal impact on food quality. However, it is important to exercise safety when using carbon dioxide freezing technology to avoid leaks and potential harm to humans. Therefore, when using carbon dioxide for food freezing, it is necessary to follow relevant safety procedures and guidelines.
Our company attaches great importance to technological innovation and R&D design, boasting 1 municipal enterprise technology center in Heze City. We have established test facilities for non-destructive testing,理化testing, welding, hydrostatic testing, and are equipped with over 600 units of various instruments and equipment including CNC machines, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, and plasma welding machines. The key products and technologies we have developed, such as thermal-pressure vessel welding, biomass boiler emissions reduction, and waste heat recovery, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, key provincial projects, and Heze City innovative and excellent projects. We have accumulated 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 national standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc + filler wire argon arc welding (PAW-GTAW) technique, which has been appraised as internationally competitive at the provincial level for scientific and technological achievements. Choose Zhongjie Special Equipment, and let's create brilliance together!