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-freezing 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 staff, including 247 engineers and technicians, and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was named a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was identified as a "Gazelle Enterprise in Shandong Province" and in August 2022, it was recognized as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The testing and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation and extending their service life. Below is a general outline of the testing and maintenance procedures for liquid oxygen storage tanks: - Visual Inspection: Regularly inspect the exterior of liquid oxygen storage tanks for signs of corrosion, wear, and cracks. Address any anomalies promptly by repairing or replacing affected parts. - Internal Cleaning: Regularly clean the interior of liquid oxygen storage tanks to remove accumulated impurities and dirt. Use appropriate cleaning agents and tools to prevent damage to the tank. - Level Measurement: Conduct regular level measurements to ensure the liquid oxygen level within the tank is within a safe range. Use level gauges or other measurement devices, and record the results. - Pressure Testing: Regularly perform pressure tests to verify the tank's pressure-bearing capacity. Control pressure and time during testing to ensure safety and accuracy. - Leak Detection: Regularly check for leaks to ensure the tank's integrity. Utilize leak detection equipment such as gas detectors or foam leak detection agents. - Valve and Pipe Inspection: Regularly inspect the valves and pipe connections of the liquid oxygen storage tank to ensure proper sealing and no leakage. Address any issues by repairing or replacing as necessary. - Maintenance Records: Keep records of the testing and maintenance activities, including dates, inspection details, and results. These records help track the tank's maintenance history and issue resolution. - Scheduled Maintenance: Develop a regular maintenance schedule based on the tank's usage and requirements. Maintenance includes lubrication, bolting, and replacing seals to ensure normal operation.

Detailed parameters of carbon dioxide storage tanks can vary based on specific design and usage requirements. Here are some common parameters of carbon dioxide storage tanks: - Capacity: The capacity of carbon dioxide storage tanks can differ according to needs, with common ranges from a few thousand to tens of thousands of liters. - Pressure: The design working pressure of carbon dioxide storage tanks typically falls between 15-25 MPa (megapascals), with the specific pressure depending on the application scenario and requirements. - Material: Carbon dioxide storage tanks are usually made of high-strength materials such as carbon steel or stainless steel. The choice of material depends on the storage environment and requirements. - Dimensions: The external dimensions of carbon dioxide storage tanks can also vary based on capacity and design. Common shapes include cylindrical, spherical, or cuboid. - Level Control: Carbon dioxide storage tanks are often equipped with level control systems for monitoring and controlling the liquid level of carbon dioxide. These systems typically include level sensors and control valves. - Pressure Control: Internal pressure control systems are usually installed in carbon dioxide storage tanks to monitor and control the gas pressure inside. These systems typically include pressure sensors and safety valves. It should be noted that specific parameters of carbon dioxide storage tanks may vary depending on different manufacturers, application scenarios, and standards. When selecting and using carbon dioxide storage tanks, it is important to follow relevant safety operating procedures and guidelines, and consult with experts to obtain accurate parameter information.

Carbon dioxide storage tanks feature the following safety technical characteristics: High-strength materials: Storage tanks are typically made from high-strength steel or alloy materials to withstand stresses and loads under high pressure and low-temperature conditions. Safety valves and pressure relief devices: Equipped with safety valves and pressure relief devices to control internal tank pressure, prevent overpressure and explosion. When the internal pressure of the tank exceeds the set value, the safety valve will automatically open to release pressure. Insulating layer: The interior of the tank is fitted with an insulating layer to minimize heat conduction and liquid evaporation. The insulating layer usually consists of multi-layer structures, including thermal insulation materials and an external protective layer, to maintain a stable internal temperature. Level monitoring and control: Equipped with level monitoring devices to monitor the liquid level inside the tank. Timely monitoring and control of the level ensure that the liquid storage volume inside the tank remains within a safe range. Fire and explosion prevention measures: Fire-resistant coatings, fire isolation areas, and explosion-proof devices are implemented to prevent fires and explosions. Leak detection and alarm systems: The tank is fitted with a leak detection and alarm system to promptly detect and alert of any leaks. Quick response and handling can minimize the safety risks caused by leaks. Regular inspections and maintenance: Regular checks and maintenance, including visual inspections, valve maintenance, and pressure tests, are necessary to ensure the safety performance and reliability of the tank. It should be noted that the specific safety technical characteristics of carbon dioxide storage tanks may vary depending on the type of tank and application. When using carbon dioxide storage tanks, it is necessary to follow relevant regulations and standards.

The cooling process for carbon dioxide storage tanks can vary depending on specific application requirements and process design. Here is an example of a general cooling process for carbon dioxide storage tanks: Initial Cooling: When carbon dioxide enters the tank, it is typically cooled initially to lower its temperature. This can be achieved by passing the carbon dioxide through a condenser or cooler. The cooling medium can be cold water or refrigerant. Tank Cooling: After carbon dioxide enters the tank, it is necessary to continue cooling the tank itself to maintain the liquid state of the carbon dioxide. This can be done by setting up coolers or cooling pipes externally and circulating the cooling medium (such as cold water or refrigerant). Temperature Control: During the tank cooling process, the temperature inside the tank needs to be controlled to ensure that carbon dioxide remains within an appropriate temperature range. This can be achieved through temperature sensors and control systems, which automatically control the temperature based on the set range. Insulation: To reduce heat transfer and energy loss, the tank is often insulated. This can be done by setting up insulating materials (such as polyester foam or glass wool) externally to reduce heat conduction. Regular Inspection and Maintenance: In the cooling process of the tank, regular inspection and maintenance of cooling equipment and insulating materials are required to ensure their proper operation and effectiveness. This includes cleaning coolers, checking the integrity and effectiveness of insulating materials, etc. It should be noted that the specific cooling process for carbon dioxide storage tanks may vary due to different application scenarios and process requirements. In actual application, process design and operation should be based on specific circumstances to ensure the safety and performance of the tank. Consult engineers or storage experts for more information.
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