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 has 7 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 area being 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.
Low-temperature liquid storage tanks (such as liquid nitrogen, liquid oxygen, liquid argon, etc.) possess several advantages:
High-Density Storage: Low-temperature liquid storage tanks can convert gases into liquids, significantly enhancing storage density. Compared to gas storage, liquid storage allows for a greater volume of material to be stored in a relatively smaller space, thereby improving storage efficiency.
Low Temperature Retention: Low-temperature liquid storage tanks are equipped with excellent insulation properties, effectively maintaining the低温 state of the liquid. The design and construction of the insulation layer reduce heat conduction and heat transfer, keeping the liquid at low temperatures and minimizing evaporation and loss.
Supply: Low-temperature liquid storage tanks provide a stable and consistent liquid supply. Through internal pressure control and pipeline system design, precise liquid supply is achievable, catering to industrial production and experimental requirements.
Safety: Low-temperature liquid storage tanks offer a high level of safety. Compared to gas storage, liquid storage reduces the risks of gas leakage and explosion. Tanks are typically equipped with safety devices such as pressure relief valves and level alarms to ensure timely action can be taken in abnormal situations, protecting the tank's safety.
Multi-functional Applications: Low-temperature liquid storage tanks are widely used in various fields, such as industrial production and scientific research. Low-temperature liquids like liquid nitrogen and liquid oxygen can be utilized for freezing, refrigeration, gas supply, and more, catering to diverse industrial needs.
In summary, low-temperature liquid storage tanks offer advantages such as high-density storage, temperature retention, supply, safety, and versatile applications, providing reliable liquid storage and supply solutions across various fields.

The low-temperature storage tank boasts several advantages:
Storage: Low-temperature storage tanks can maintain liquefied low-temperature substances (such as liquid nitrogen, liquid oxygen, etc.) at low temperatures, preserving their liquid state. Compared to gas storage, liquid storage significantly enhances storage density and saves space.
Long-term Storage: Low-temperature storage tanks are designed for long-term storage of低温 materials, extending their service life. By controlling the temperature within the tank and the performance of the insulation layer, evaporation and oxidation of the liquid substances can be slowed down, maintaining their stability and purity.
Safety: Low-temperature storage tanks boast excellent safety features. The tanks are made with special materials and structural design to withstand 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 usage.
Wide Range of Applications: Low-temperature storage tanks are extensively used in various fields. They can be used for storing liquid oxygen and providing oxygen supply; in industrial applications, they are suitable for storing liquefied natural gas (LNG) and other process gases like liquid nitrogen; in scientific research, they are used for storing low-temperature experimental samples.
Environmental Protection and Energy Saving: Low-temperature storage tanks enable effective storage and utilization of low-temperature materials, reducing energy waste and environmental pollution. During the storage and transportation of liquid substances, energy loss is minimized, thus improving energy utilization efficiency.
In summary, low-temperature storage tanks offer advantages such as storage, long-term storage, safety, multi-field applications, and environmental protection and energy conservation. This makes them a crucial equipment for storing and supplying low-temperature materials, playing a significant role in various industries.

To extend the service life of liquid argon storage tanks, the following measures can be taken:
Regular inspections and maintenance: Conduct periodic visual inspections of liquid argon tanks, check valves and connections, and perform leak detection and pressure tests. Identify and repair potential issues promptly to ensure the tank operates normally.
Maintain Insulation: Insulation is crucial for the thermal preservation of liquid argon tanks. Regularly inspect the integrity and insulating properties of the insulation, repair or replace damaged insulation materials to ensure the tank's insulating effectiveness.
Control liquid argon temperature: The temperature of liquid argon should be maintained within an appropriate range to prevent damage to the storage tank from either excessive or insufficient temperatures. Implement suitable cooling or heating measures to ensure stable temperature of the liquid argon.
Corrosion Protection: The outer shell and internal structure of the liquid argon tank should be protected against corrosion and oxidation. Regularly inspect and maintain the protective coating to ensure it remains intact.
Avoid excessive pressure and overfilling: Prevent the internal pressure of the tank from being too high or too low, as well as overfilling with liquid argon. Excessive pressure and overfilling can lead to structural破裂 or damage to the tank.
Regular Cleaning and Drainage: Conduct regular internal cleaning of the tank to remove accumulated impurities and dirt. Regularly drain to prevent contaminants and sediments in liquid argon from damaging the tank.
Safety Operations and Training: Ensure operators are equipped with knowledge and skills for safe handling of liquid argon tanks. Strengthen safety training to enhance operators' safety awareness and emergency response capabilities.
Manage records and documents: Establish comprehensive management records and documentation, including tank usage, inspection logs, maintenance records, etc. Regularly review and update management records to ensure safe management and maintenance of tanks.
These measures can help extend the service life of liquid argon storage tanks, but specific operations and management are required based on the type and application of the tank. When performing maintenance and operation, please follow relevant regulations and standards and consult with experts to ensure safety and effectiveness.

Liquid nitrogen storage tanks are equipment used for storing liquid nitrogen and are widely applied in the following fields: Frozen Food and Refrigerated Logistics: Liquid nitrogen storage tanks are used in the frozen food and refrigerated logistics industry to freeze or refrigerate food and other perishable items, extending their shelf life and maintaining freshness. The low temperature of liquid nitrogen can rapidly freeze food, preventing bacterial growth and spoilage. Biological Sample Storage: Liquid nitrogen storage tanks are also used in the field for freezing and preserving biological samples, cells, tissues, and more. The low temperature of liquid nitrogen can effectively protect the integrity and viability of biological materials, used in medical research, biomedicine engineering, and transplantation fields. Laboratory Research: In scientific research and laboratories, liquid nitrogen storage tanks are utilized to provide liquid nitrogen as a coolant and freezing medium. The low temperature of liquid nitrogen can be used for cooling laboratory equipment, material research, superconducting electronics, and low-temperature physics. Metalworking and Welding: Liquid nitrogen storage tanks are applied in metalworking and welding for cooling and controlling the temperature of metals. Liquid nitrogen can rapidly cool metals, improving their hardness and strength, and reducing deformation and stress. Gas Storage and Supply: Liquid nitrogen storage tanks are also used for storing and supplying nitrogen gas. Liquid nitrogen can be converted into gaseous nitrogen through evaporation and used in applications such as gas shielded welding, gas fire suppression systems, gas analysis, and laboratory gas supply. In summary, liquid nitrogen storage tanks are widely used in the fields of frozen food, laboratory research, metalworking, and gas supply, providing storage and supply functions for liquid nitrogen at application sites.
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-quality products and services at competitive prices!