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: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and the 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, with the main workshop area at 83,000 square meters. It currently employs 710 people, including 247 engineering technicians and 82 middle-level technicians. 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.
A carbon dioxide storage tank pressure maintenance system is a system designed to maintain the internal pressure of a carbon dioxide storage tank. Since carbon dioxide is a gas at room temperature, it needs to be compressed into a liquid state for storage to increase density. The primary function of the pressure maintenance system is to monitor and regulate the internal pressure of the tank, ensuring that the carbon dioxide inside remains within a safe and stable pressure range. The system typically consists of the following components: Pressure Sensor: Installed inside the tank, it monitors the pressure in real-time and transmits pressure signals to the control system. Control System: Receives signals from the pressure sensor and controls the system based on pre-set pressure ranges. When the pressure inside the tank exceeds or falls below the set range, the control system triggers corresponding control measures. Pressure Regulating Valve: Adjusts the pressure inside the tank according to the control system's instructions. When pressure is too high, the valve opens to release some gas to lower the pressure. When pressure is too low, the valve closes to prevent further gas release, increasing the pressure. Pressure Reserve Device: Usually a pressure vessel used to store additional gas for providing extra pressure support when needed. When the tank's pressure drops, the reserve device releases gas to maintain the internal pressure. Through the coordinated efforts of these components, the carbon dioxide storage tank pressure maintenance system ensures that the pressure inside the tank remains within a safe and stable range. This is crucial for the normal operation and safety of the tank.

Carbon dioxide tanks are equipment used for storing and transporting carbon dioxide (CO2). They are typically sealed containers with special design and structure to ensure safe storage and use of CO2. Here are some common details about carbon dioxide tanks: - Storage Form: CO2 is in a gaseous state at room temperature but can be compressed into a liquid under high pressure for more efficient storage and transportation. Carbon dioxide tanks usually store liquid CO2. - Storage Pressure: These tanks commonly hold high-pressure CO2, with pressures usually around 20-25 bar. This high-pressure state helps maintain the liquid state of CO2. - Storage Capacity: The capacity of carbon dioxide tanks can vary based on need, ranging from a few thousand liters to tens of thousands of liters. The choice of capacity depends on specific application requirements. - Safety: CO2 is colorless, odorless, and non-toxic, but at high concentrations, it can be dangerous and cause asphyxiation. Therefore, appropriate safety measures, such as ventilation and protective gear, must be taken when using carbon dioxide tanks to ensure the safety of operators. - Application Fields: Carbon dioxide tanks are widely used in various fields, including the food and beverage industry, construction, firefighting, and gas supply. They store and supply CO2 to meet various industry needs. - It is important to note that the design, manufacturing, and use of carbon dioxide tanks must comply with relevant regulations, standards, and safety regulations. Operators should follow the operating manual and safety guidelines, and collaborate with local regulatory bodies and experts to ensure the safety and reliability of the tanks.

Carbon dioxide tanks are devices used for storing carbon dioxide gas. They are typically made of high-strength materials with sealing capabilities to prevent the leakage of stored CO2. The design and capacity of the tanks can be adjusted to meet various application needs. Carbon dioxide tanks are widely used across industries, including industrial production, food processing, etc. In the industrial sector, they are commonly used for storing and supplying CO2 gas for welding, gas shielding, fire suppression, and other processes. In the food processing industry, they are used to produce carbonated beverages and frozen foods. In the medical field, they can be used to manufacture medical gases such as breathing gases and anesthetic gases. The development and manufacturing of carbon dioxide tanks involve multiple manufacturers and technologies. Different companies may use various designs and manufacturing processes to meet the diverse needs of customers. Additionally, safety standards and regulations must be adhered to ensure the safe operation and use of the tanks.

Common disadvantages of corrosion in pressure vessels during use include: - Chemical media: Some chemical media are corrosive, such as acids, alkalis, and salts. When these media come into contact with the vessel material, corrosion may occur. - Humidity and moisture: High humidity environments or long-term exposure to moisture can cause corrosion on the vessel surface. Particularly in the presence of oxygen, the corrosion rate may increase. - Rusting: When the protective layer on the vessel surface (such as coatings or plating) is damaged or destroyed, the vessel may suffer from rusting. Rusting can damage the vessel surface and may lead to further corrosion. - Electrochemical corrosion: When different metals or metal and non-metals come into contact, an electrochemical corrosion battery may form. This type of corrosion can cause localized corrosion on the vessel surface. - Welding defects: Defects like weld pores and cracks may be introduced during the welding process. These defects may become starting points for corrosion. Corrosion weakens the structural integrity of the vessel, increasing the risk of leakage or bursting. Therefore, regular inspection and maintenance of the corrosion-resistant layer, coating, or plating on pressure vessels are important. If corrosion issues are detected, timely measures should be taken for repair or replacement of damaged parts. Moreover, selecting appropriate materials and corrosion prevention measures, as well as correct operational and maintenance methods, can reduce the risk of corrosion in pressure vessels. Adhere to relevant safety operating procedures and standards to ensure the safe operation of pressure vessels.
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