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-freezing 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. It currently employs 710 people, 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.
Carbon dioxide is widely used in the field of food freezing. Here are some common applications of carbon dioxide in food freezing:  1. Food Processing: Carbon dioxide is frequently used in the processing of frozen foods. By exposing food to liquid carbon dioxide, temperatures can be rapidly reduced for quick freezing, which effectively preserves the quality, texture, and nutritional content of the food.  2. Storage: Carbon dioxide is also utilized in the freezing storage of food. During the storage process, food is placed in a low-temperature environment, and the temperature of the food is lowered below the freezing point using the refrigerating action of carbon dioxide, extending the shelf life of the food.  3. Transportation: Carbon dioxide plays a crucial role in the frozen transportation of food. By using carbon dioxide freezing technology during transportation, the low-temperature state of the food is maintained, preventing quality loss.  4. Display: In the retail food industry, carbon dioxide is used in frozen display cases as well. By injecting carbon dioxide gas into the display case, the low-temperature state of the food is maintained while showcasing it, preserving 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, safety operations must be observed when using carbon dioxide freezing technology to avoid leaks and potential harm to humans. Therefore, relevant safety operation procedures and guidelines should be followed when using carbon dioxide for food freezing.

When handling CO2 storage tanks, static electricity is a safety issue that needs attention. Here are some ways to avoid static: Grounding: Ensure the tank and related equipment are properly grounded. Grounding releases static electricity to the ground, reducing the likelihood of static buildup. Use specialized grounding equipment and grounding wires to ensure reliable grounding. Anti-static Equipment: Use anti-static equipment, such as anti-static clothing, shoes, and gloves. These devices can help eliminate or reduce static buildup and protect the safety of the operators. Avoid Friction: Avoid friction during operation, especially when in contact with substances or flammable gases. Friction can generate static, increasing the risk of fire or explosion. Control Humidity: Maintain appropriate humidity in the operating environment; higher humidity can reduce the generation and accumulation of static electricity. Use humidifiers or other humidity control devices to adjust the environmental humidity. Avoid Using Plastic or Rubber Materials: Plastic and rubber materials are prone to generate static electricity. Try to avoid using these materials during operation. Choose materials with better anti-static properties. Static Eliminators: Use static eliminators to eliminate or reduce static buildup. Static eliminators neutralize static electricity by releasing charges, reducing the danger of static. Tank Cleaning: Regularly clean the interior of the tank to remove accumulated impurities and dirt. Be mindful of preventing static generation and accumulation during the cleaning process. Note that static avoidance methods should be determined based on specific operational environments and tank characteristics. During operation, follow relevant safety regulations and standards, and consult with professionals when necessary.

Carbon dioxide storage tanks feature the following characteristics: - High-pressure Storage: These tanks are commonly used for high-pressure storage and can withstand significant pressure. The CO2 inside is in a gaseous or liquid state, with pressure typically ranging from tens to hundreds of MPa. - High-density Storage: When stored in a liquid state, CO2 has a higher storage density, allowing for more CO2 to be stored in a smaller tank compared to gaseous storage, thereby enhancing storage efficiency. - Corrosiveness: CO2 has some corrosive properties, which can erode certain materials. Therefore, storage tanks are usually made from corrosion-resistant materials like stainless steel or alloy steel to ensure durability and safety. - Temperature Sensitivity: CO2 is in a gaseous state at room temperature but can turn into a liquid at lower temperatures. Thus, storage tanks often need to have good insulation properties to maintain low internal temperatures. - Safety Protection: Storage tanks are equipped with safety valves and pressure relief devices to control internal pressure and temperature, ensuring the safety of the storage process. Additionally, they must have excellent sealing performance to prevent leaks. - Wide Application: Carbon dioxide storage tanks are widely used in various industries such as food and beverage, pharmaceutical, and chemical industries. They can be used for freezing food, refrigeration equipment, gas supply, and more, meeting diverse industry needs. In summary, carbon dioxide storage tanks possess features such as high-pressure storage, high-density storage, corrosiveness, temperature sensitivity, safety protection, and wide application. These characteristics make them essential equipment for storing and using CO2 in many industries.

When using carbon dioxide tanks, attention should be given to the following aspects: Safety Operation: Operators must receive training to understand the characteristics, operational requirements, and safety measures of carbon dioxide tanks. Adhere to relevant safety operation procedures and standards to ensure operational safety. Tank Inspection: Regularly inspect the tank's appearance, sealing, valves, and pipe connections before use. Promptly repair or replace if any abnormalities or damage are found. Tank Placement: Store tanks in well-ventilated, dry, and fire-free areas. Avoid direct sunlight and high temperatures to prevent overheating. Leak Prevention: Ensure that valves and pipe connections are sealed properly to prevent carbon dioxide leaks. Regularly check and replace seals, and promptly address any leaks. Pressure Control: Maintain internal tank pressure within a safe range. Check the tank's pressure gauge and safety valve before use to ensure proper functioning. Avoid excessive or low pressure to prevent safety accidents. Fire Prevention Measures: Carbon dioxide is flammable, so fire prevention measures must be taken during use. Smoking, open flame operations, or placing flammable items near the tank are prohibited. Exhaust Emission: Properly discharge exhaust gases produced during the use of carbon dioxide tanks to avoid CO2 accumulation in enclosed spaces, which can lead to asphyxiation and safety risks. Emergency Response Plan: Develop and implement an emergency response plan, including procedures for handling leaks, evacuation, and first aid measures. Operators should be familiar with the plan and conduct regular drills. Note that carbon dioxide tanks should only be used by trained operators following relevant safety operation procedures and standards. Seek advice and guidance from experts.
Our company places great emphasis on technological innovation and R&D design. We have 1 municipal-level enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We are equipped with over 600 instruments and 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 and technologies we have developed, such as welding for temperature and pressure vessels, emission reduction for biomass boilers, and waste heat recovery, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, key projects of Shandong Province, and Heze City innovation and excellence projects. We have accumulated 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 Yajiang Li of Shandong University, has jointly developed deep cryogenic vessel processing technology, which adopts the international plasma arc + wire-filled tungsten inert gas arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement identification, the technology level has reached the international level in the field of deep cryogenic vessel manufacturing. Choose Zhongjie Special Equipment, let's join hands to create brilliance!