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 7 business centers: boiler, 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. The main workshop is 83,000 square meters, with a current workforce of 710, including 247 engineering and technical personnel and 82 intermediate-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 "Deer Enterprise in Shandong Province" and in August 2022, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The application standards for liquid carbon dioxide storage tanks mainly include the following aspects:

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 of insulation. The storage tank is equipped with valves for operation, which are arranged for ease of use. It also includes a pressure gauge and a level gauge for monitoring the internal pressure and liquid level of the carbon dioxide. 2. Key Features of Low Temperature Carbon Dioxide Storage Tank (1) The storage tank is fitted with a liquid filling connection for tanker trucks, allowing liquid supply to vaporizers, tanker trucks, and pumps. (2) Both the inner and outer cylinders of the storage tank are equipped with safety devices to ensure safe operation for the user. (3) The insulation material of the low temperature carbon dioxide storage tank is specially treated to provide a longer vacuum life. Additionally, the tank is equipped with a vacuum gauge for measuring the insulation space vacuum 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; do not touch them. (2) Perform an airtightness test on the inner cylinder system of the storage tank using nitrogen to the working pressure. After checking that valves, pipes, flanges, etc., have no leaks, 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 tanker trucks, account for the vehicle's travel path.

Carbon dioxide storage tank standard parameters may vary depending on different design and application requirements. Here are some common standard parameters: - Tank Capacity: The capacity of a carbon dioxide storage tank is typically expressed in kiloliters (L) or cubic meters (m). Common capacities range from a few thousand to tens of thousands of liters. - Working Pressure: The working pressure of a carbon dioxide storage tank is usually around 20 to 25 MPa (Megapascals) at room temperature, with specific pressure determined by application needs and design standards. - Design Temperature: The design temperature of a carbon dioxide storage tank is generally within a low-temperature range, usually between -40°C and -60°C, to accommodate the liquefaction and storage requirements of carbon dioxide. - Material: Carbon dioxide storage tanks are usually made of high-strength steel or alloy materials to withstand stress and loads under high pressure and low-temperature environments. - Insulation: The interior of the tank is equipped with an insulation layer to reduce heat transfer and liquid evaporation. The insulation is typically a multi-layer structure, including thermal insulation material and an external protective layer. - Safety Valve and Pressure Relief Devices: The tank is equipped with a safety valve and pressure relief devices to control internal pressure and prevent overpressure and explosion. - Level Monitoring and Control: The tank is fitted with level monitoring equipment to monitor the liquid level within the tank. Timely monitoring and control of the level ensure that the stored liquid volume is within a safe range. Note that specific standard parameters for carbon dioxide storage tanks may vary due to different design standards, application requirements, and manufacturers. When selecting and using carbon dioxide storage tanks, it is important to consider these factors.

When using a 50-cubic-liter liquid oxygen storage tank, the following safety concerns should be noted: Fire and Explosion Prevention: Liquid oxygen is highly oxidizing and can support combustion. Therefore, avoid contact and ensure there are no open flames or other ignition sources nearby. Ventilation: Evaporation of liquid oxygen produces a large amount of oxygen, so good ventilation around the tank is necessary to prevent oxygen accumulation and explosive hazards. Avoid High Temperatures: Liquid oxygen can cause combustion or explosion when in contact with high-temperature objects. Thus, avoid exposing the liquid oxygen storage tank to high-temperature environments or contacting high-temperature objects. Pressure Control: Use the liquid oxygen storage tank according to its designed pressure and flow rates, avoiding exceeding its capacity. Regularly inspect and maintain the safety valve to ensure proper operation and prevent overpressure. Corrosion Prevention: Regularly inspect and maintain the tank to prevent corrosion, especially on the surface and contact areas, to keep them dry and clean and avoid corrosion. Safe Operation: Operators should receive relevant training to understand the safety operation procedures and standards for liquid oxygen storage tanks. Follow proper procedures, wear personal protective equipment, and ensure safe operations. Emergency Preparedness: Establish an emergency plan and equip with appropriate fire-fighting and first-aid equipment when using liquid oxygen storage tanks. Operators should be familiar with emergency procedures and be able to respond quickly to emergencies. Note that the above safety concerns are general recommendations. Specific safety operations should be based on the design and usage requirements of the liquid oxygen storage tank. Before using the liquid oxygen storage tank, it is recommended to refer to relevant safety operation manuals and guidelines to ensure safe operation.
Zhongjie Special Equipment upholds the grand vision of "realizing the dreams of our employees, creating value for our customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We commit to society with high-quality, cost-effective products and services!