Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company has seven business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three factory areas on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters. The main workshop spans 83,000 square meters. Currently, there are 710 employees, including 247 engineering and technical personnel and 82 middle-level technical personnel. 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.
Common defects in carbon dioxide storage tanks during use may include deformation. Here are some reasons that could lead to tank deformation: Overpressure: When the internal pressure of the tank exceeds its design pressure, it may cause deformation. This could be due to operational errors, system failures, or other causes. Temperature Fluctuations: Carbon dioxide storage tanks expand and contract with temperature changes, and if the temperature changes are too great or too rapid, it may lead to tank deformation. Internal Corrosion: If there is internal corrosion in the tank, it can damage the structural integrity of the tank, causing deformation. External Damage: External impacts, compressions, or other physical damages can lead to tank deformation. Incorrect Installation or Use: Incorrect installation or usage methods may cause uneven stress on the tank, leading to deformation. Tank deformation can reduce the structural integrity of the tank and even pose risks of leakage or rupture. Therefore, it is important to regularly inspect and maintain the integrity of the tank, as well as to follow proper operational and installation procedures. If tank deformation or other defects are detected, use of the tank should be immediately stopped, and professional assistance should be sought for inspection and repair. Do not attempt to repair or continue using a defective tank yourself to ensure operational safety.

Before using a carbon dioxide cylinder, certain inspection and filling points must be addressed. Here are some common precautions: - Inspect the cylinder exterior: Check for any visible damage, corrosion, or leakage signs. Ensure the cylinder shell is intact and undamaged. - Check valves and fittings: Verify that the cylinder's valves and fittings are securely fastened and there are no leaks. Ensure their proper operation. - Inspect the pressure gauge: Confirm that the cylinder's pressure gauge is functioning correctly and readings are accurate. Replace or repair if abnormal. - Check the level indicator: Ensure the cylinder's level indicator is working correctly and accurately displays the liquid level. Repair or replace if abnormal. - Inspect the pressure relief device: Check that the cylinder's pressure relief device (e.g., safety valve) is functioning properly and set at the required pressure. Repair or replace if abnormal. - Inspect the filling equipment: Verify that the filling equipment (e.g., filling pipes, pumps) is operating correctly with no leaks or blockages. Ensure safety and reliability. - Filling operation: During the filling process, pay attention to the following: - Control the filling speed to avoid too fast or too slow. - Control the filling pressure to prevent exceeding the cylinder's rated pressure. - Monitor the liquid level to ensure proper filling. - Regularly inspect filling equipment and valves to ensure they are operating correctly. - Safety measures: Adhere to relevant safety regulations and procedures during the filling process. Operators should wear appropriate protective gear, such as static-dissipative clothing, gloves, etc. - Note that specific inspection and filling points may vary depending on the type of cylinder and application. Before using a carbon dioxide cylinder, conduct inspections and operations according to relevant specifications and standards, and consult with experts to ensure safety and effectiveness.

Carbon dioxide has extensive applications in the field of food freezing. Here are some common uses of carbon dioxide in food freezing: - Freezing Food Processing: Carbon dioxide is often used in the processing of frozen foods. By exposing food to liquid carbon dioxide, temperatures can be rapidly reduced, enabling quick freezing. This rapid freezing effectively preserves the quality, texture, and nutritional content of the food. - Frozen Storage: Carbon dioxide is also employed in the freezing storage of food. During the storage process, food is placed in a low-temperature environment, where the cooling effect of carbon dioxide lowers the temperature below the freezing point, thereby extending the shelf life of the food. - Frozen Transportation: Carbon dioxide plays a crucial role in food freezing transportation. By utilizing carbon dioxide freezing technology during transportation, the low-temperature state of the food is maintained, preventing quality and nutritional loss. - Frozen Display: In the retail food industry, carbon dioxide is used in frozen display cases. By injecting carbon dioxide gas into the display case, the low-temperature state of the food is preserved, showcasing the product while maintaining its freshness and quality. Compared to traditional freezing techniques, carbon dioxide freezing offers advantages such as faster freezing, better freezing effects, and less impact on food quality. However, safety operation is crucial 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 operation procedures and guidelines.

The installation of a safety valve on a CO2 storage tank is a crucial measure to ensure the tank can safely release pressure in the event of overpressure. The following are general installation steps: Select the appropriate safety valve: Choose a safety valve that meets the tank's design pressure and flow requirements. Ensure the rated pressure and flow of the safety valve align with the tank's specifications. Installation location: Select a suitable location for the safety valve, typically on the top or side of the tank. Ensure the safety valve can easily release pressure and is not obstructed by other equipment or structures. Preparation: Clean the tank surface at the installation location to ensure there are no debris or dirt. Check the tightness of the safety valve and connecting pipe to ensure there are no damages or leaks. Install the safety valve: Connect the safety valve to the tank using the appropriate fittings and sealing materials. Follow the installation instructions for the safety valve to ensure a secure and reliable connection with the tank. Adjustment and testing: Adjust and test the safety valve according to its specifications and requirements. Ensure the safety valve operates normally within the set pressure range and can release pressure promptly. Identification and record: Label relevant information on the safety valve and tank, such as the rated pressure and flow of the safety valve, installation date, etc. Record the installation process and test results for future reference and maintenance. Please note that the installation of a CO2 storage tank safety valve must follow relevant safety operation procedures and standards. If you do not have the necessary knowledge and experience, it is recommended to consult professionals or manufacturers for installation.
Chongjie Special Equipment upholds the grand vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of green energy equipment. We offer products and services with high performance and cost-effectiveness to contribute to society!