Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as an electromechanical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 unit of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
The installation of a CO2 storage tank safety valve is a crucial measure to ensure the tank can safely release pressure in case of overpressure. Below are general installation steps: 1. Selecting the right safety valve: Choose an appropriate safety valve based on the tank's design pressure and flow requirements. Ensure the rated pressure and flow of the safety valve meet the tank's specifications. 2. Installation location: Select a suitable location for the safety valve, typically on the top or side of the tank. Make sure the safety valve can discharge pressure smoothly and is not obstructed by other equipment or structures. 3. Preparation: Clean the tank surface at the installation location, ensuring no debris or dirt. Check the tightness of the safety valve and connecting pipes, ensuring no damage or leaks. 4. Installing 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. 5. Adjustment and testing: Adjust and test the safety valve according to its specifications and requirements. Ensure the safety valve can operate normally within the set pressure range and can release pressure promptly. 6. Identification and record-keeping: 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 installing 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.

Carbon dioxide has extensive applications in the field of food freezing. Here are some common uses of carbon dioxide in food freezing: 1. Frozen 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, achieving quick freezing. This rapid 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, food is placed in a low-temperature environment, and through the refrigerating effect of carbon dioxide, the temperature of the food is lowered below the freezing point, thereby extending the shelf life of the food. 3. Frozen Transportation: Carbon dioxide plays a crucial role in the frozen transportation of food. By utilizing carbon dioxide freezing technology during transportation, the low-temperature state of the food can be maintained, preventing quality and nutritional loss. 4. Frozen Display: In the food retail industry, carbon dioxide is also used in frozen display cabinets. By injecting carbon dioxide gas into the display cabinet, the low-temperature state of the food can be maintained, showcasing the food while preserving its 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, when using carbon dioxide for food freezing, it is necessary to follow relevant safety operation procedures and guidelines.

The process of filling a carbon dioxide tank involves injecting liquid carbon dioxide into the tank. Here are some important considerations for filling a carbon dioxide tank: Safety Operations: It is mandatory to follow relevant safety procedures when filling a carbon dioxide tank. Operators should be trained and familiar with the tank's characteristics and safety precautions to ensure safe operations. Tank Capacity Control: During the filling process, ensure that the tank is not exceeded its rated capacity. Exceeding the capacity can lead to excessive pressure in the tank, increasing safety risks. Filling Rate Control: The filling rate should be moderate, avoiding too fast or too slow. A too rapid filling rate can cause excessive internal pressure, while a too slow rate can lead to extended filling times. Temperature Control: Control the temperature of the liquid carbon dioxide during the filling process. High temperatures can cause rapid evaporation, and low temperatures can lead to solidification. Pressure Control: Monitor and control the internal pressure of the tank during the filling process. Excessive pressure can cause the tank to burst or leak, while low pressure can result in inadequate filling. Level Monitoring: Regularly monitor the tank's level during the filling process. Ensure accurate level measurements to avoid overfilling or underfilling. Pressure Relief Devices: The tank should be equipped with pressure relief devices, such as safety valves, to control internal pressure. The set pressure of the relief devices should meet relevant requirements and be checked and maintained regularly. Environmental Protection: Pay attention to environmental protection during the filling process, avoiding leaks and pollution of liquid carbon dioxide. Take appropriate protective measures, such as using sealed connections and protective devices. The above are some important considerations for filling a carbon dioxide tank. When performing filling operations, follow relevant safety regulations and standards, and consult with experts to ensure safety and effectiveness.

Pressure Vessel Standards: Liquid carbon dioxide storage tanks are generally considered pressure vessels, and their design, manufacturing, and use should comply with the relevant pressure vessel standards. In China, common pressure vessel standards include GB150 "Steel Pressure Vessels" and GB18435 "Storage Tanks". Safety Standards: The use of liquid carbon dioxide storage tanks should adhere to relevant safety standards and regulations. For instance, in China, the safe operation of liquid carbon dioxide storage tanks should follow standards such as GB50028 "Design Code for Petroleum and Chemical Enterprises" and GB50016 "Building Design Fire Prevention Code". Inspection and Testing Standards: The inspection and testing of liquid carbon dioxide storage tanks should comply with the corresponding standards and regulations. For example, regular inspections of liquid carbon dioxide storage tanks can refer to standards like GB/T 19638 "Regular Inspection Procedures for Pressure Vessels". Environmental Protection Standards: The use of liquid carbon dioxide storage tanks should comply with relevant environmental protection standards and regulations. For example, in China, the exhaust emissions from liquid carbon dioxide storage tanks should meet standards such as "Air Pollutant Emission Standards".
Shandong Zhongjie Special Equipment, welcome customers to our factory for business discussions.