Shandong Zhongjie Special Equipment (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: boilers, 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 area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 people, 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 "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.
There are several types of carbon dioxide storage tanks: - Atmospheric Pressure Tanks: These are containers for storing carbon dioxide with operating pressures close to atmospheric pressure. They are suitable for low-pressure applications such as the beverage industry and gas fire suppression systems. - High Pressure Tanks: These are containers for storing carbon dioxide with operating pressures above atmospheric pressure. They are commonly used in industrial fields like chemicals and refrigeration. - Liquid Storage Tanks: These tanks are designed for the liquefied storage of carbon dioxide at temperatures below room temperature. They are typically used in scenarios requiring large amounts of liquid carbon dioxide, such as food freezing and pharmaceutical manufacturing. - Vapor Storage Tanks: These tanks store liquid carbon dioxide in a gaseous state, with temperatures and pressures suitable for the vaporization process. They are commonly used where liquid carbon dioxide needs to be vaporized for supply, such as in carbonation of beverages and welding. - Insulated Tanks: These tanks have excellent thermal insulation properties and are used to reduce heat transfer and liquid evaporation. They are generally used for long-term storage of liquid carbon dioxide, such as in scientific research and cold storage. It's essential to choose the appropriate type of carbon dioxide storage tank based on specific application needs and scenarios, and to operate and manage them in accordance with relevant regulations and standards.

Carbon dioxide storage tanks come in various sizes and configurations, tailored to specific application requirements and capacity needs. Here are some common dimensions and structures of carbon dioxide storage tanks: Dimensions: The size of carbon dioxide storage tanks ranges from small to large, varying with capacity. Common size ranges include from a few thousand to several tens of thousands of liters. Structure: Carbon dioxide storage tanks typically feature a double-walled design, with the inner wall for storing liquid CO2 and the outer wall for insulation. The inner wall is usually made of stainless steel or aluminum alloy, offering excellent corrosion resistance. Insulation: To maintain the low temperature of the liquid CO2, the outer wall of the tank usually has an insulating layer to reduce heat transfer and maintain低温. Insulation can be in a multi-layered structure, such as polyester foam, glass wool, etc. Pressure Relief Devices: Carbon dioxide storage tanks are usually equipped with pressure relief devices, such as safety valves, to control internal tank pressure. The set pressure of the pressure relief devices should meet relevant requirements and be inspected and maintained regularly. Connecting Pipes: The connection between the tank and the pipes is typically made using appropriate methods, such as flange connections or threaded connections. The connecting pipes should comply with relevant standards and regulations to ensure a tight and reliable connection with no leaks. Support Structure: Large carbon dioxide storage tanks usually require a support structure to bear their weight. Support structures can be made of steel or concrete, ensuring the tank's stability and safety. It is important to note that the specific dimensions and structures of carbon dioxide storage tanks may vary depending on different applications and requirements. When selecting and using carbon dioxide storage tanks, considerations should be based on the actual needs.

Urea synthesis from carbon dioxide is a significant chemical reaction with several applications: Urea Production: Urea is a vital nitrogen fertilizer and chemical, widely used in both agricultural and industrial sectors. Carbon dioxide synthesis is one of the commonly used methods for urea production. In this process, carbon dioxide reacts under high temperature and pressure to form urea. This method utilizes carbon dioxide resources, reducing reliance on fossil fuels used in traditional urea production methods. Urea Fuel: Urea can also serve as a urea fuel for internal combustion engines and combustion equipment. By heating and decomposing urea, it releases energy that reacts with oxygen in the air to produce combustion heat. This combustion process only produces water vapor and nitrogen as byproducts, reducing environmental pollution. Chemical Synthesis: Urea is an essential raw material for the synthesis of many chemicals. Carbon dioxide synthesis of urea provides a sustainable supply for the chemical industry, used in the production of other chemicals such as plastics, resins, paints, etc. Energy Storage: Urea can also act as a medium for energy storage. By synthesizing urea from carbon dioxide, energy can be stored in the form of chemical bonds. When energy is needed, it can be released by decomposing urea, which then reacts with oxygen in the air to produce combustion heat, releasing stored energy. The development of carbon dioxide synthesis urea technology aims to reduce dependence on fossil fuels used in traditional urea production methods, lower greenhouse gas emissions, and promote the development of sustainable agriculture and the chemical industry. However, this technology is still in continuous development and research, requiring further technical breakthroughs and practical verification for large-scale application.

Leakage issues in carbon dioxide storage tanks may be caused by the following reasons: Material Corrosion: Carbon dioxide has some corrosive properties, and long-term contact can lead to corrosion of the tank material. Corrosion can damage the tank's surface protective layer, causing it to lose its seal and leading to leakage. Welding Defects: There may be welding defects at the tank's welded joints, such as crack in the weld or porosity. These defects can reduce the strength of the焊接部位, resulting in leakage. Design Defects: Inadequate design or defects in the tank can also cause leakage. For example, improperly designed interfaces or unreasonable structural designs can lead to leakage problems in the tank. Overpressure: If the internal pressure of the tank exceeds its capacity, it may cause deformation or rupture of the tank, leading to leakage. Temperature Fluctuations: During temperature changes, the thermal expansion and contraction effect of carbon dioxide can cause deformation of the tank or stress concentration, leading to leakage. Incorrect Operation: Incorrect operation and maintenance can also cause leakage in the tank. For example, over-tightening valves or improper maintenance measures can lead to a decrease in the tank's sealing performance. External Damage: External impacts, scratches, or corrosion on the tank can cause surface damage or corrosion, leading to leakage. To avoid leakage issues in carbon dioxide storage tanks, select appropriate materials, reasonable design, and manufacturing processes, and conduct regular inspections and maintenance. At the same time, operators should receive training and follow operational procedures to ensure the safe operation of the tank.
Chongjie Special Equipment adheres to the great vision of "realizing employee dreams, creating customer value, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We offer products and services with high cost-performance to contribute to society!