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 vessels, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory sites on Jinnan Road, East Yangtze 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 engineers and technicians 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, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
1.相关知识 about Low-Temperature Carbon Dioxide Storage Vessels
The low-temperature carbon dioxide storage vessel typically features a double-walled 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 layered insulation. The storage vessel is equipped with valves for operation, which are strategically placed for ease of use. It also features a pressure gauge and a level gauge for monitoring internal pressure and liquid levels.
2.Main Characteristics of Low-Temperature Carbon Dioxide Storage Vessels
(1) The storage vessel is equipped with liquid filling connections for tank trucks, enabling liquid supply to vaporizers, tank trucks, and pumps.
(2) Both the inner and outer cylinders of the storage vessel are fitted with safety equipment to ensure safe operation.
(3) The insulation material of the storage vessel has been specially treated to extend the vacuum life. Additionally, the vessel is equipped with a vacuum gauge for measuring the insulation space vacuum level when necessary.
3.Shipment of Low-Temperature Carbon Dioxide Storage Vessels
(1) During road transportation, the storage vessel must be securely attached to the vehicle and travel at moderate speeds. Collision with other objects is strictly prohibited.
(2) Upon arrival, the unloading personnel should work with the equipment supervisor to develop a scientifically sound and reasonable unloading plan.
4.Installation of Low-Temperature Carbon Dioxide Storage Vessels
(1) Once the storage vessel arrives at the installation site, it can be placed in position when the installation conditions are met. During installation, collisions and impacts are forbidden, and special attention must be paid to the explosion-proof equipment on the outer cylinder and the vacuum valve, which should not be touched.
(2) A gas-tightness test using nitrogen to the working pressure should be conducted on the inner cylinder system of the storage vessel. After confirming that there are no leaks in the valves, pipes, flanges, etc., the installation is complete.
(3) The installation dimensions are as specified in the supply documentation. When considering filling and draining liquids with tank trucks, the vehicle's access routes should be taken into account.
To maintain the stability of carbon dioxide storage tanks, the following details should be taken into account:
- Foundation Design: The foundation design must comply with relevant standards and regulations, providing adequate strength and stability. The foundation should consider the tank's weight, pressure, and geological conditions to ensure the tank is securely placed on the foundation.
- Insulation and Mounting Devices: Appropriate insulation, such as rubber pads or steel plate pads, should be placed between the tank and foundation to reduce friction and vibration. Simultaneously, use mounting devices like bolts or welding to secure the tank to the foundation, preventing movement and tilting.
- Site Leveling: The site where the tank is installed should be kept level with no significant tilt or unevenness. If the site has tilts or uneven areas, adjustments and corrections should be made to ensure the tank's stability.
- Seismic Measures: In earthquake-prone areas, additional seismic measures are required, such as setting up seismic supports or enhancing the tank's seismic resistance, to improve stability.
- Regular Inspections: Conduct regular inspections of the tank's mounting devices and connection points to ensure they are intact. Any loose, worn, or damaged conditions should be addressed promptly with repairs or replacements.
- Load Distribution: Uniformly distribute loads above the tank, such as platforms or pipelines, to balance the weight distribution and reduce the impact of uneven loads on stability.
- Safety Distance: Tanks should maintain sufficient distance from other equipment, buildings, and fire sources to prevent accidents, fires, or other incidents from affecting the tank's stability.
It is important to note that when installing carbon dioxide...
When filling liquid carbon dioxide into storage tanks, attention should be paid to the following aspects:
Safety Operation: During the filling process, it is mandatory to follow relevant safety operation procedures and standards. Operators should receive training to understand the operation requirements and safety measures of the filling equipment and operate strictly according to the procedures.
Tank Inspection: Before filling, the tank must be inspected to ensure its integrity and safety. Check the tank's appearance, sealability, valves, and pipeline connections, and promptly repair or replace any abnormalities or damages.
Filling Equipment: Select appropriate filling equipment, ensuring it meets relevant standards and requirements. The filling equipment should have a safe and reliable design and operational function to ensure the safety and efficiency of the filling process.
Filling Speed Control: Controlling the filling speed is crucial. Excessive filling speed can lead to high tank pressure, increasing safety risks. Fill at a controlled speed based on the tank's capacity and design requirements to ensure safe filling.
Pressure Control: The tank's pressure must be strictly controlled during the filling process. The filling equipment should be equipped with pressure sensors and safety valves to ensure the internal pressure of the tank stays within a safe range.
Leak Protection: Ensure the sealing of valves and pipelines during the filling process to prevent carbon dioxide leakage. Regularly inspect and replace seals, and promptly address any leakage issues.
Monitoring and Recording: Real-time monitoring and recording of key parameters such as pressure, temperature, and level should be conducted during the filling process. This helps in timely detection of abnormalities and appropriate adjustments or treatments.
Note that liquid carbon dioxide storage tanks should be operated by trained personnel and followed the relevant safety operation procedures and standards. Seek advice and guidance from knowledgeable professionals.
Proper installation of CO2 storage tanks requires the following steps:
Site Preparation: Choose an appropriate site for installation, ensuring it is level, stable, and meets safety distance requirements. Clear the site to ensure there are no obstructions or ignition sources.
Foundation Construction: Construct a foundation based on the tank's size and weight. The foundation must have sufficient strength and stability to support the tank's weight and pressure.
Tank Installation: Place the tank on the foundation, ensuring proper bedding and fastening between the tank and foundation. Connect and secure the tank according to design specifications.
Pipe Connection: Connect the tank to the piping system as needed, ensuring good seals at connection points to prevent leaks.
Safety Equipment Installation: Install necessary safety equipment, such as safety valves, pressure sensors, temperature sensors, etc., and ensure proper installation and connection.
System Testing: Conduct system tests after installation, including pressure and leak tests, to ensure the proper and safe operation of the tank and piping system.
Identification and Warning: Set necessary identification and warning signs on the tank and piping system, including tank capacity and pressure information, to remind operators to maintain safety.
Tank Maintenance: After installation, perform regular maintenance and upkeep, including cleaning, lubricating, and inspections, to ensure the tank operates normally and extends its service life.
Installation of CO2 storage tanks should be performed by qualified installers and in accordance with relevant safety operation procedures and standards. Seek advice and guidance from experts.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for business discussions.




































