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 the 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 identified as a "Specialized and New Enterprise in Shandong Province" by the Department of Industry and Information Technology. In June 2022, it was recognized as a "Deer Enterprise in Shandong Province" and in August 2022, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The design requirements for carbon dioxide storage tanks typically encompass the following aspects: Pressure Vessel Design: Carbon dioxide storage tanks are usually designed as high-pressure vessels capable of withstanding high pressure. The design must comply with relevant standards and regulations, such as Standard GB150 "Steel Pressure Vessels." Material Selection: The choice of materials for the tank should consider the properties of carbon dioxide, such as high pressure, high oxidizability, and corrosiveness. Common materials include carbon steel and stainless steel, with selection based on specific working conditions and requirements. Safety Valve and Pressure Control: The tank should be equipped with a safety valve and pressure control device to ensure the internal pressure remains within a safe range. The safety valve should be selected according to design requirements and should be inspected and tested regularly to ensure proper operation. Insulation Performance: Since carbon dioxide needs to remain in a liquid state at low temperatures, the tank should have good insulation properties to prevent excessive evaporation of liquid carbon dioxide and energy loss. The selection and design of insulation materials and layers should consider working temperatures and environmental conditions. Leak Detection and Alarm: The tank should be equipped with leak detection devices and alarm systems, as well as corresponding monitoring equipment. These devices can detect leaks in a timely manner and trigger alarms, allowing for appropriate measures to be taken. Structural Strength and Stability: The structural design of the tank should have sufficient strength and stability to withstand internal pressure and external loads. The structural design should comply with relevant standards and regulations, such as Standard GB12337 "Design Code for Pressure Vessels." Safe Operation and Maintenance: The design of the tank should consider the ease of safe operation and maintenance, such as the placement of manholes, inspection openings, and drain outlets.

Additionally, the use of liquid carbon dioxide tanks must adhere to specific industry standards and regulations depending on the industry and application scenario. For instance, when using liquid carbon dioxide tanks in the food and beverage industry, relevant food safety and hygiene standards must be followed. It's important to note that different regions may have varying standards and regulations applicable to the use of liquid carbon dioxide tanks. Therefore, operations and usage should be conducted in accordance with local laws and standards.

Standard parameters for carbon dioxide storage tanks can vary depending on design and application requirements. Here are some common standard parameters: - Tank Capacity: The capacity of carbon dioxide storage tanks is typically expressed in kiloliters (L) or cubic meters (m). Common capacity ranges vary from a few thousand to tens of thousands of liters. - Working Pressure: The working pressure of carbon dioxide storage tanks 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 carbon dioxide storage tanks is generally in the low-temperature range, usually between -40°C to -60°C, to accommodate the liquefaction and storage requirements of carbon dioxide. - Material: Carbon dioxide storage tanks are commonly made of high-strength steel or alloy materials to withstand stress and loads under high pressure and low-temperature environments. - Insulation Layer: The interior of the tank is equipped with an insulation layer to reduce heat transfer and liquid evaporation. The insulation layer is typically a multi-layer structure, including thermal insulation materials 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 explosions. - Level Monitoring and Control: The tank is fitted with level monitoring devices to monitor the liquid level inside. Timely monitoring and control of the level ensure the liquid stored within the tank 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 carbon dioxide tanks, the following precautions should be taken: Safety Operation: Prior to operating a carbon dioxide tank, it is essential to be familiar with and adhere to the relevant safety operation procedures and guidelines. Ensure that operators have received necessary training and understand the tank's working principle, operating procedures, and emergency measures. Tank Inspection: Regularly inspect the external and internal conditions of the carbon dioxide tank, including checking for corrosion, leaks, and welds on the tank walls. If any abnormalities or damage are found, take immediate corrective or replacement actions. Tank Pressure Control: Maintain the internal pressure of the tank within a safe range. Monitor and control the tank's pressure to avoid damage or safety risks due to excessive or low pressure. Fire Prevention Measures: Carbon dioxide is a flammable gas, so fire prevention measures must be observed. Avoid open flame operations near the tank and ensure the surrounding environment is flame-free. Leakage Management: In case of a carbon dioxide leak, appropriate emergency measures should be taken immediately. Quickly notify relevant personnel, ensure safe evacuation, and take steps to prevent the spread of the leak. Tank Maintenance: Regularly maintain and service the tank, including cleaning, lubrication, and corrosion prevention. Follow the manufacturer's recommendations and guidelines to ensure the tank operates normally and has a long service life. Compliance: Adhere to local regulations, standards, and specifications to ensure the tank's design, manufacture, installation, and use meet the required standards. It is crucial to strictly follow safety operation procedures when using carbon dioxide tanks and to collaborate with relevant personnel to ensure the tank's safety and reliability.
Our company places a high priority on technological innovation and research and development. We possess a city-level technical center in Heze City, featuring facilities for non-destructive testing, physical and chemical testing, welding tests, hydrostatic tests, and more. Equipped with over 600 instruments and equipment such as CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, and plasma welding machines, our R&D of key products such as temperature-pressure vessels, biomass boiler emission reduction, and waste heat recovery has been selected for multiple Shandong Province Ministry of Industry and Information Technology Science and Technology Innovation Projects, Shandong Province Key Projects, and Heze City Innovation and Excellence Projects. We have accumulated 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the internationally recognized plasma arc+filling wire argon arc welding (PAW-GTAW) technology. This technology has been appraised as reaching an international level in deep cryogenic container manufacturing. Choose Zhongjietech for a partnership towards greater glory!