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/GB3-grade and GC2-grade pressure pipeline installation licenses, as well as an electromechanical installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the Council Unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the U.S. ASME/U2 certification.
Low Temperature Carbon Dioxide Storage Tank Related Knowledge 1. Structure of Low Temperature Carbon Dioxide Storage Tank The low temperature carbon dioxide storage tank typically features a double-layered cylindrical structure. The inner cylinder is made of 6MnDR alloy steel, while the outer cylinder is constructed from Q245R or Q345R pressure vessel steel plate. The piping is made of austenitic stainless steel, and the insulation space is filled with high vacuum sintered sand or wrapped with multiple layers for thermal insulation. The storage tank is equipped with valves for operation, which are arranged for ease of use. Pressure gauges and level indicators are also installed to monitor the internal pressure and liquid level of the low temperature carbon dioxide storage tank. 2. Key Features of Low Temperature Carbon Dioxide Storage Tank (1) The storage tank is equipped with a liquid filling connection for tank trucks, allowing for liquid supply to vaporizers, tank trucks, and pumps. (2) Both the inner and outer cylinders of the storage tank are equipped with safety devices to ensure safe operation for users. (3) The insulation material of the low temperature carbon dioxide storage tank has been specially treated to provide a longer vacuum life. Additionally, the tank is fitted with a vacuum gauge for measuring the insulation space vacuum level when necessary. 3. Transportation of Low Temperature Carbon Dioxide Storage Tank (1) During road transportation, the storage tank should be securely fastened to the vehicle, travel at moderate speeds, and avoid collisions with other objects. (2) After the storage tank arrives, the unloading crew should work together with the equipment supervisor to develop a scientific and reasonable unloading plan. 4. Installation of Low Temperature Carbon Dioxide Storage Tank (1) Upon arrival at the installation site, the storage tank can be positioned when installation conditions are met. During the installation process, avoid impacts and strikes, and pay special attention to the explosion-proof equipment on the outer cylinder and the vacuum valve, which should not be touched. (2) Perform a gas-tightness test on the inner cylinder system of the storage tank using nitrogen to the working pressure. After checking that valves, pipes, flanges, etc., are leak-free, the installation is complete. (3) The installation dimensions of the low temperature carbon dioxide storage tank are specified in the supply materials. When considering liquid loading and unloading with tank trucks, the vehicle's travel path should be taken into account.

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 often 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 rapid freezing effectively preserves the quality, texture, and nutritional value of the food. 2. Frozen Storage: Carbon dioxide is also employed in the freezing storage of food. During the storage process, the food is placed in a low-temperature environment, and the temperature of the food is reduced below the freezing point through the refrigerating action of carbon dioxide, thereby extending the shelf life of the food. 3. Frozen Transportation: Carbon dioxide plays a crucial role in the freezing transportation of food. By using 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, it is important to note that the use of carbon dioxide freezing technology requires safe operation and to avoid leaks and harm to humans. Therefore, when using carbon dioxide for food freezing, it is necessary to follow relevant safety operation procedures and guidelines.

The reason for regular inspections of low-temperature liquid carbon dioxide storage tanks is to ensure their safety performance and normal operation. Due to the storage tanks being in a low-temperature and high-pressure environment, there are certain safety risks, such as leaks and structural failures. Regular inspections can help identify potential issues early, allowing for appropriate repairs or maintenance to ensure safe operation. The specific inspection frequency should be determined according to relevant regulations and standards, and it is generally recommended to conduct regular inspections and maintenance. Typically, the intervals for regular inspections of low-temperature liquid carbon dioxide storage tanks range from 1 to 3 years, with the exact intervals potentially varying based on the tank's usage, age, design standards, and other factors. The contents of regular inspections usually include visual inspections of the tank, checks of valves and connections, leak detection, pressure testing, and periodic checks and maintenance of the insulation to ensure its thermal performance. It is important to note that the specific inspection frequency and contents should be determined according to local regulations, standards, and the manufacturer's recommendations. Inspections should be carried out by qualified personnel, and the results and maintenance records should be documented for tracking and managing the tank's safety performance.

Carbon dioxide tanks possess the following characteristics: - High-pressure Vessel: Carbon dioxide tanks are typically designed as high-pressure vessels, capable of withstanding high pressures. This is because carbon dioxide requires high pressure at room temperature to maintain its liquid state. - High Oxidizing Properties: Carbon dioxide has high oxidizing properties, which can support 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. Consequently, carbon dioxide tanks usually need to have excellent insulation properties to maintain the低温 state of the stored liquid 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 supplies. - Safety Valves and Pressure Control: To ensure that the internal pressure of the tank remains within a safe range, carbon dioxide tanks are commonly equipped with safety valves and pressure control devices. These devices monitor and control the tank's internal pressure to prevent excessive pressure from causing the tank to rupture. - Corrosiveness: Carbon dioxide has some corrosive properties, especially in high humidity environments. Therefore, the materials and corrosion prevention measures for 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 many industries, such as the food and beverage industry, manufacturing, fire extinguishing, and the gas industry. When using carbon dioxide tanks, it is necessary to follow relevant safety operating procedures and standards to ensure the safety of operations.
Zhongjie Special Equipment upholds the grand vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," wholeheartedly committing to the development of green energy equipment. We dedicate high-value products and services to society!