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 seven 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 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.
The liquid nitrogen storage tank filling process generally includes the following steps:
Preparation: Ensure that the storage tank and filling equipment are in good condition with no damage or leaks. Check that the tank's insulation layer is intact and undamaged.
Safety Inspection: Check the tank and its surrounding environment for safety. Ensure there are no flammable materials or other hazardous items in the vicinity of the tank.
Connect equipment: Link the filling equipment to the storage tank. Ensure the connection is securely fastened and leak-proof.
Prepare Liquid Nitrogen: Provide liquid nitrogen supply, ensuring the quality and purity meet the required standards.
Turn on valves: Follow the operation instructions of the filling equipment to gradually open the corresponding valves, allowing liquid nitrogen to flow from the supply source into the storage tank.
Regulate Flow: Adjust the flow control valve of the filling equipment as needed to control the inflow speed of liquid nitrogen. Ensure the flow rate is moderate, avoiding too fast or too slow.
Monitor Liquid Level: Real-time monitoring of the liquid nitrogen level in the storage tank through a liquid level gauge or other level monitoring devices. Ensure the level is maintained within a safe range.
Cease Filling: Close the valve of the filling equipment when liquid nitrogen is filled to the tank or reaches the desired level, halting the inflow of liquid nitrogen.
Disconnect: Sever the connection between the filling equipment and the storage tank, ensuring there are no leaks at the joint.
Safety Inspection: Recheck the tank and its surrounding environment for safety, ensuring no leaks or other potential hazards.
For general reference only, the actual liquid filling process may vary depending on the specific type of tank and filling equipment. When conducting liquid nitrogen tank filling operations, please adhere to relevant operational specifications and safety requirements, and ensure that the operators are trained and skilled in relevant safety measures.

Liquid nitrogen tanks are widely used in meat freezing. The following are several main applications of liquid nitrogen tanks in meat freezing:
Quick Freezing: Liquid nitrogen tanks can provide low temperatures to rapidly freeze meat to the desired temperature. Due to the low-temperature characteristics of liquid nitrogen, the temperature of the meat can be rapidly reduced in a short period of time, effectively preserving the quality and texture of the meat.
Chilled Storage: Liquid nitrogen tanks are suitable for long-term freezing storage of meat products. Placing meat in a liquid nitrogen tank maintains low temperatures, preventing bacterial and microbial growth, thus extending the shelf life of the meat.
Chilled Transportation: Liquid nitrogen tanks are suitable for the frozen transportation of meat products. Placing meat in a liquid nitrogen tank maintains its低温 state, ensuring the quality and freshness of the meat during transit.
Chilled Processing: Liquid nitrogen tanks can be used for meat chilling. By exposing meat to liquid nitrogen, the surface can be quickly frozen, forming a frozen layer, thus preserving the meat's moisture and nutritional content.
Chilled Processing: Liquid nitrogen tanks are suitable for meat freezing processing. Placing meat in liquid nitrogen makes it harder and crisper, facilitating cutting, slicing, and processing.
Be mindful that when using liquid nitrogen tanks for meat freezing, it is crucial to adhere to the relevant safety operating procedures and guidelines. Ensure that operators are equipped with the necessary safety awareness and operational skills to prevent accidental incidents. Additionally, consult with food safety experts.

Proper placement of liquid oxygen tanks is a crucial measure to ensure they pose no danger to the surrounding environment and personnel during use. The following are the safety requirements for the placement of liquid oxygen tanks:
Safety Distance: Liquid oxygen storage tanks should maintain a certain distance from other buildings and equipment. This is to ensure effective control and reduction of environmental impact in the event of a leak or fire in the tank.
Fire and Explosion Prevention Measures: Liquid oxygen tanks should be placed in a fire-resistant area, away from open flames, high-temperature sources, and flammable materials. The surrounding area should be equipped with fire and explosion prevention facilities, such as fire extinguishers, foam sprinkler systems, etc., to address potential fire risks.
Level placement: Liquid oxygen tanks should be placed on a solid, flat foundation to ensure stability. The bottom of the tank should make full contact with the ground to prevent the tank from tilting or rocking.
Ventilation Requirements: Liquid oxygen tanks should be placed in well-ventilated areas to ensure normal circulation of gas emissions and oxygen supply. There should be no obstructions around the tank that could hinder gas flow.
Identification and Warning: Liquid Oxygen tanks should be clearly marked with information such as the stored medium, capacity, and pressure. Warning signs and safety alerts should be placed in the surrounding area to remind personnel of the presence and potential hazards of the liquid oxygen tank.
Regular Inspections and Maintenance: Liquid oxygen tanks should be regularly inspected and maintained, including checking the tank's appearance, sealing, and corrosion protection. Any issues found should be promptly repaired or the tank replaced to ensure proper operation and safety.
It's important to note that the safety requirements for the placement of liquid oxygen tanks can vary by region and industry. When positioning a liquid oxygen tank, adhere to relevant regulations, standards, and safety protocols, and establish appropriate safety measures based on the specific situation. If you're unfamiliar with or have doubts about the placement requirements, it's advisable to consult with experts or relevant institutions.

When selecting the pedestal for a liquid argon tank, several factors should be considered:
Load Capacity: The support must be capable of bearing the weight of the liquid argon tank. Select a support with sufficient load capacity based on the tank's capacity and dimensions. Typically, the weight of the liquid argon tank is specified in the design specifications, allowing you to determine the support's load capacity from these data.
Stability: The support must provide sufficient stability to prevent the tank from tilting or swaying during operation. The design of the support should consider the tank's center of gravity and its changes to ensure stable support.
Corrosion Resistance: Liquid argon has low temperature and corrosive properties. The support material should have good corrosion resistance to prevent corrosion and damage. Common support materials include stainless steel, aluminum alloy, etc.
Thermal Insulation: Liquid argon storage tanks typically require thermal insulation. The support bases should have certain thermal insulation properties to reduce heat transfer and the evaporation of liquid argon. The design of the support bases should take into account the installation and protection of the insulation layer.
Installation and Maintenance: The bracket should feature ease of installation and maintenance, facilitating the tank's installation and routine maintenance tasks.
When selecting the pedestal for liquid argon tanks, it is recommended to consult with engineers or suppliers. Choose a suitable pedestal based on the specific tank requirements and usage environment. Additionally, adhere to relevant design specifications and safety standards to ensure the quality and reliability of the pedestal.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for business discussions.