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-freeze 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 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.
Low-temperature liquid oxygen storage tanks usually require some safety accessories to ensure safe operation and to address potential risks. The following are some common safety accessories for low-temperature liquid oxygen storage tanks:
Pressure Sensors: Designed for monitoring pressure changes within storage tanks. Should the pressure exceed the set range, the sensors will activate an alarm or automatically stop filling to prevent over-pressurization.
Safety Valve: Used to automatically release gas when the pressure inside the storage tank exceeds the set value, preventing overpressure. The safety valve should be selected and installed based on the design pressure and capacity of the tank.
Pressure Relief Device: Designed to release gas to a safe area when the pressure inside a storage tank exceeds the safe limit, thus reducing the pressure in the tank. Typically, the pressure relief device includes relief valves and relief pipes.
Level sensor: Used to monitor the liquid oxygen level changes inside storage tanks to ensure an adequate supply of liquid oxygen and prevent overfilling.
Temperature Sensor: Used for monitoring temperature changes within storage tanks to ensure the temperature of liquid oxygen inside remains within a safe range.
Fire Detectors and Fire Suppression Systems: Designed to monitor fire risks around storage tanks and activate fire suppression systems as needed, to prevent the spread of fire to other areas.

When using a 50-cubic-liter liquid oxygen storage tank, the following safety concerns should be noted:
Tank Pressure Control: Ensure the liquid oxygen pressure within the tank is consistently maintained within a safe range. Monitor and control the tank's pressure to prevent risks from excessive or low pressure.
Leakage and Fire Prevention: Regularly inspect the tank and associated pipelines for sealing integrity to prevent oxygen liquid leakage. Oxygen liquid is highly flammable and fire prevention measures must be taken to ensure there are no ignition sources around the tank.
Explosion Prevention Measures: Oxygen inside the liquid oxygen tank can potentially cause an explosion upon contact with flammable materials. Ensure there are no flammable items around the tank and implement explosion prevention measures, such as explosion-proof electrical equipment and static grounding.
Safety Valves and Emission Systems: Storage tanks should be equipped with safety valves and emission systems to prevent overpressure conditions. Ensure the proper operation of the safety valves and the unobstructed flow of the emission systems.
Routine Maintenance and Inspection: Regularly perform maintenance and inspections on the storage tanks, including cleaning, coating protection, and anti-corrosion treatment. Ensure the structural integrity and safety of the tanks.
Safety Operation and Training: Operators must undergo relevant safety training, familiarize themselves with the safe operation procedures for liquid oxygen tanks, and understand emergency response measures. Adhere to correct operational steps to ensure safe operation.
Environmental Monitoring: Regularly monitor environmental parameters such as oxygen concentration and temperature around the storage tanks to ensure safety.
Emergency Preparedness: Develop an emergency response plan, including measures for leaks, fires, and explosions. Equip with appropriate emergency equipment and firefighting supplies to handle unforeseen events.
Above are some safety issues to be aware of when using a 50-cubic-liter liquid oxygen tank. To ensure safety, it is recommended to follow relevant safety regulations and operation guidelines, and seek assistance and guidance from experts when necessary.

The use of liquid nitrogen storage tanks in rapid freezing technology offers several advantages:
Rapid Freezing Speed: Liquid nitrogen has a low temperature of about -196 degrees Celsius. Using a liquid nitrogen tank for rapid freezing can quickly lower the surface temperature of food, achieving fast freezing. Compared to traditional freezing methods, liquid nitrogen rapid freezing can significantly reduce freezing time while preserving the quality and texture of the food.
Uniformly Frozen Effect: The liquid nitrogen quick-freezing technology achieves rapid and even freezing of food. Liquid nitrogen is喷射ed onto the food surface in a gaseous form, rapidly absorbing heat and transforming into a liquid state, thereby ensuring even freezing of the food and preventing crystallization and lumping during the freezing process.
Maintain Food Quality: Rapid freezing with liquid nitrogen can quickly chill food, reducing crystallization and clumping during the freezing process, thereby preserving the quality and texture of the food. During the quick-freezing process, liquid nitrogen rapidly lowers the surface temperature of the food, forming tiny frozen structures that effectively retain the food's moisture and nutrients.
Flexibility and Adaptability: The liquid nitrogen tank can be adjusted and controlled to accommodate various types of food and freezing requirements. The speed and angle of the liquid nitrogen jet can be modified based on the size, shape, and freezing needs of the food, to achieve optimal freezing results.
Environmental Protection and Energy Saving: Liquid nitrogen quick-freezing technology can save more energy and resources compared to traditional freezing methods. Liquid nitrogen evaporates rapidly during the freezing process, causing environmental pollution and generating waste water and gas.
Note that when using liquid nitrogen tanks for flash freezing, it is essential to follow the relevant safety operating procedures and guidelines. Ensure that operators have the necessary safety awareness and operational skills to prevent accidental incidents. Additionally, consult

Low-temperature liquid storage tanks feature the following characteristics and usage advantages:
Features:
Low-Temperature Storage: Low-temperature liquid storage tanks can store low-temperature liquids (such as liquid nitrogen, liquid oxygen, etc.) at low temperatures, maintaining their liquid state. Liquid storage significantly enhances storage density and saves space.
Insulation: The low-temperature liquid storage tank is equipped with special insulation materials and structural design, effectively reducing heat conduction and loss, maintaining a stable temperature for the low-temperature liquid. This helps to minimize energy loss and evaporation of the liquid.
Safety: Low-temperature liquid storage tanks have excellent safety performance. The tanks are made with special materials and structural design, capable of withstanding low temperatures and high pressures. Additionally, the tanks are equipped with safety devices such as pressure relief valves and liquid level alarms, ensuring safe operation and use.
Utilization Advantages:
High Purity Supply: Low-temperature liquid storage tanks can provide high-purity liquid substances. Through refrigeration and purification processes, high-purity liquid gases can be obtained to meet application requirements in fields such as industry and scientific research.
Long-term Storage: Low-temperature liquid storage tanks are designed for long-term storage of low-temperature liquids, extending their service life. By controlling the temperature within the tank and the performance of the insulation layer, the evaporation and oxidation of the liquid can be slowed down, maintaining its stability and purity.
Broad Applications: Low-temperature liquid storage tanks are widely used in fields such as industry and scientific research. They can be used for storing liquid oxygen and providing oxygen supply; in the industrial field, they are suitable for storing liquid natural gas (LNG) and liquid nitrogen, among other process gases; in the scientific research field, they can store low-temperature experimental samples, etc.
Environmental Protection & Energy Saving: Low-temperature liquid storage tanks can effectively store and utilize low-temperature liquids, reducing energy waste and environmental pollution. Storage of liquid substances
Zhongjie Special Equipment upholds the grand vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry. We offer society high-value products and services!