Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates 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 of 200,000 square meters, with the main workshop spanning 83,000 square meters. The company currently employs 710 staff, including 247 engineers and technicians, and 82 intermediate-level technicians. Recognized as a "High-Tech Enterprise" by the Science and Technology Department in December 2016, it was designated as a "Specialized and New Enterprise in Shandong Province" by the Department of Industry and Information Technology in June 2021, as an "Egling Enterprise in Shandong Province" in June 2022, and as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology in August 2022.
During the operation of low-temperature liquid storage tanks, the following points should be noted:
Protective Gear: When handling low-temperature liquid storage tanks, it is mandatory to wear appropriate protective gear, including protective gloves, suits, and non-slip shoes. This equipment protects the skin from the harmful effects of low-temperature liquids.
Avoid direct contact: Low-temperature liquids can be very cold and may cause chills. Therefore, it is important to avoid direct contact with low-temperature liquids, especially with the skin. Use tools or utensils for handling, and prevent direct hand contact with low-temperature liquids.
Ventilation Requirements: In the operational area of low-temperature liquid storage tanks, adequate ventilation must be ensured to expel gases produced by the evaporation of low-temperature liquids. Maintain air circulation to avoid excessive oxygen concentration, reducing the risk of fire and explosion.
Prevent Leaks: Regularly inspect low-temperature liquid storage tanks for leaks and equip with leak detection and alarm systems. In case of a leak, take immediate action to control and repair it. Avoid harm to personnel and the environment caused by the leakage of low-temperature liquids.
Fire Prevention Measures: Low-temperature liquids have low boiling and freezing points, making them prone to fire. To prevent and contain fires, fire walls and fire-retardant coatings should be installed around low-temperature liquid storage tanks.
Static Protection: Handling low-temperature liquids may generate static electricity, increasing the risk of sparks causing fires. Measures such as using static-conductive materials and anti-static equipment should be taken to reduce the accumulation and release of static electricity.
Regular inspections and maintenance: Conduct regular checks on the condition of low-temperature liquid storage tanks and related equipment, including valves, pipes, pressure gauges, etc. Ensure the equipment is in perfect condition, and promptly repair or replace any damaged parts.
Waste Gas Treatment: During the process of using low-temperature liquids, waste gas is produced, and appropriate waste gas treatment measures must be taken to minimize environmental impact.
The above are the precautions to be taken when using low-temperature liquid storage tanks, ensuring safe operation and normal tank performance. During operation, it should be strictly adhered to the relevant operational procedures and safety operation requirements, avoiding...

Prior to cooling the liquid oxygen tank, the following prerequisites must be met:
Clean Tanks: Ensure the interior of the tank is clean, free of impurities and contaminants. The tank should be properly cleaned and flushed to maintain its internal cleanliness.
Drainage and Exhaust: Empty the gas from the tank and expel it through the exhaust system to reduce the gas content within the tank. This helps minimize interference of the gas on the cooling process.
Safety Precautions: Prior to cooling the liquid oxygen tank, necessary safety measures must be taken. Liquid oxygen is highly flammable and has low-temperature characteristics; operators should wear appropriate protective clothing, gloves, and other personal protective equipment to ensure safe operation.
Temperature Control: During the cooling process of the liquid oxygen storage tank, it is necessary to control the tank's temperature. Typically, low-temperature mediums such as liquid nitrogen are used to cool the tank, ensuring the temperature gradually drops below the boiling point of liquid oxygen.
Insulation and Heat Retention: Liquid oxygen tanks are typically designed with double or multi-layer structures, filled with insulating material in between to minimize heat transfer and evaporation of the liquid oxygen. Ensuring the integrity and excellent insulation of the insulation layer enhances the cooling efficiency of the tank.
Under the aforementioned conditions, cooling operations for liquid oxygen tanks may be performed. The cooling process must strictly adhere to relevant safety regulations and operational guidelines to ensure the safe operation and use of the tank.

Low-temperature liquid storage tanks feature the following characteristics and 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 tanks are equipped with special insulation materials and structural design, effectively reducing heat conduction and retention to maintain a stable temperature for the low-temperature liquid. This helps to minimize energy loss and liquid evaporation.
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-pressure environments. 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 substance supply. Through refrigeration and purification processes, high-purity liquid gases can be obtained to meet application requirements in industries and scientific research fields.
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.
Wide Applications: Low-temperature liquid storage tanks are extensively used in fields such as industry, scientific research, etc. They can be used for storing liquid oxygen to provide oxygen supply; in the industrial field, they can be used for storing liquefied natural gas (LNG) and other process gases like liquid nitrogen; in the scientific research field, they can be used for storing low-temperature experimental samples.
Environmental Protection and Energy Saving: Low-temperature liquid storage tanks enable effective storage and utilization of low-temperature liquids, reducing energy waste and environmental pollution. Storage of liquid substances

Oxygen storage tanks and liquid oxygen storage tanks are devices used for storing oxygen, but they have some distinctions: - Storage Form: Oxygen storage tanks are typically used for storing gaseous oxygen, whereas liquid oxygen storage tanks are for storing liquid oxygen. Oxygen is in a gaseous state at room temperature but is cooled to a liquid state at low temperatures for more efficient storage and use. - Storage Pressure: Oxygen storage tanks usually store high-pressure oxygen, with pressures generally around 200-300 bar. Liquid oxygen storage tanks, however, store liquid oxygen at lower pressures, typically around 2-5 bar. - Storage Capacity: Oxygen storage tanks usually have smaller capacities, suitable for personal or small-scale use. Liquid oxygen storage tanks have larger capacities, suitable for industrial or large-scale applications. - Storage Method: Oxygen storage tanks store oxygen in a gaseous form, utilizing compressed gas storage. Liquid oxygen storage tanks store oxygen in a liquid state, converting it by cooling it to temperatures below its boiling point. - Safety Requirements: Due to the highly oxidizing nature of liquid oxygen, liquid oxygen storage tanks require stricter safety standards in design and use. They usually need to have good thermal insulation, leak control, and fire prevention measures to ensure safe operation. - It should be noted that the specific design and specifications of oxygen and liquid oxygen storage tanks may vary depending on different regions and application sites. When using these tanks, it is essential to follow applicable regulations, standards, and safety guidelines, and to cooperate with local regulatory authorities and personnel to ensure the tanks' safety and reliability.
Zhong Jie Special Equipment upholds the great vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," wholeheartedly commits to the development of the green energy equipment industry, and dedicates products and services of high cost-performance to society!