Shandong Zhongjie Special Equipment Co., Ltd. (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 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 engineering and technical personnel and 82 middle-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 Department 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.
To ensure the quality of liquid oxygen storage tanks, the following measures can be taken:
选择可靠的供应商：选择有资质和经验的储罐制造商或供应商，确保其具备良好的声誉和可靠的质量管理体系。
Strictly adhere to relevant standards and specifications: The design, manufacture, and installation of liquid oxygen tanks shall comply with the relevant standards and specifications, such as standards, industry standards, or.
Quality Control and Inspection: Strict quality control and inspection are conducted throughout the manufacturing process, including material inspection, process monitoring, and finished product testing. Ensure that the materials, welding, and sealing of the tanks meet the required standards.
Comprehensive Quality Management System: Establish and implement a comprehensive quality management system, including quality control plans, quality inspection records, and quality training, to ensure every aspect meets quality requirements.
Regular maintenance and inspections: Regular maintenance and inspections of liquid oxygen storage tanks are conducted, including cleaning, coating protection, and anti-corrosion treatment, to extend the lifespan of the tanks and maintain their optimal operational condition.
Safety Operations and Management: Establish and implement a safety operations and management system, including the proper use of storage tanks, operational procedures, and safety training, to ensure the safety and reliability of the tanks during use.
Regular inspections and evaluations: Conduct regular inspections and evaluations of liquid oxygen tanks, including visual inspections, pressure tests, leak detection, and as needed, non-destructive testing and material analysis, to ensure tank quality and safety.
By implementing these measures, the quality of the liquid oxygen storage tanks can be effectively ensured, enhancing their reliability and safety, and meeting usage requirements and standards.

The filling of low-temperature liquid nitrogen tanks refers to the process of transferring liquid nitrogen from an external supply source into the storage tank. Below is an explanation of the filling process for low-temperature liquid nitrogen tanks:
Preparation: Before filling the liquid nitrogen tank, thorough preparation is required. This includes inspecting the tank's condition and safety to ensure it is clean, free of impurities and contaminants. Additionally, check the quality of the liquid nitrogen from the supply source and the safety of the supply pipeline.
Connect supply source: Link the liquid nitrogen supply source to the liquid outlet of the storage tank. Ensure the connection is tight and secure to prevent leaks.
Control Liquid Level: During the bottling process, it is necessary to control the liquid nitrogen level to prevent overfilling or spillage. A level gauge or level control system can be used to monitor and control the liquid level.
Slow Injection: The injection of liquid nitrogen should be slow to prevent rapid vaporization and increased pressure. Appropriate valves and flow control devices can be used to regulate the injection rate.
Monitor Pressure: During the canning process, it is essential to monitor the storage tank's pressure to ensure it remains within a safe range. Pressure gauges or pressure sensors, among other equipment, can be used for monitoring.
Canning completed: Stop the injection of liquid nitrogen when the liquid level reaches the predetermined filling amount or the tank's capacity limit. Disconnect from the supply source and ensure the sealing of the filling port.
Safety Operation: Throughout the canning process, relevant safety regulations and operational guidelines must be followed. Liquid nitrogen is highly flammable and cryogenic, so operators must wear appropriate personal protective equipment and ensure the operating environment is free of any ignition sources.
When bottling liquid nitrogen, be mindful of its low-temperature properties and safety. Ensure safe operation and control during the bottling process to guarantee the safe operation of the storage tank and effective storage of the liquid nitrogen.

Low-temperature liquid storage tanks are equipment used for storing low-temperature liquids, commonly employed for storing liquid oxygen, liquid nitrogen, liquid argon, and other low-temperature liquids. These liquids exist in a gaseous state at room temperature but are cooled to a liquid state at low temperatures for better storage and usage. These storage tanks are typically made from high-strength materials such as stainless steel or aluminum alloys to withstand low temperatures and high pressures. They usually have an insulating layer inside to reduce evaporation of the liquid and maintain a low-temperature state. Applications of low-temperature liquid storage tanks include but are not limited to the following areas: They are widely used in rocket fuel and propulsion systems, such as liquid oxygen, liquid nitrogen, and liquid hydrogen storage tanks. They store and supply low-temperature liquids as fuel and oxidizers to propel rockets and maintain their operation. Industrial Production: Low-temperature liquid storage tanks are used in industrial production to store and supply low-temperature liquids like liquid oxygen, liquid nitrogen, and liquid argon. These liquids serve as coolants, feedstock for gas separation, and reactants in chemical reactions, among other uses. Medical Applications: They are used in the medical field to store and supply liquid oxygen for oxygen therapy, inhalation therapy, and operating rooms, among other applications. Laboratory Research: In scientific research and laboratories, low-temperature liquid storage tanks are used to provide low-temperature liquids as coolants and cryogenic media. They are employed for cooling laboratory equipment, material research, superconductivity, and low-temperature physics, among other areas. In summary, low-temperature liquid storage tanks are widely used in rocketry, industrial production, and laboratory research to store and supply low-temperature liquids to meet the needs of various fields.

Liquid Oxygen Stations are facilities used for storing and supplying liquid oxygen, with liquid oxygen tanks being a key component of these stations. Liquid oxygen tanks possess several important functions and characteristics:
Store Liquid Oxygen: Liquid oxygen tanks are primarily used for storing liquid oxygen, cooling gaseous oxygen below its critical temperature to convert it into a liquid state. The storage density of liquid oxygen is high, allowing for the storage of large amounts of oxygen in a relatively small space.
Maintain Low Temperature: Liquid oxygen tanks are typically designed with a double-layer structure, separated by a vacuum layer between the inner and outer layers to reduce heat conduction and maintain low temperatures. This helps to preserve the low-temperature state of liquid oxygen, preventing premature vaporization.
Safety Design: The liquid oxygen tank must be designed and manufactured with safety in mind. It typically employs high-strength materials, such as stainless steel or aluminum alloy, to withstand high pressure and low-temperature demands. Additionally, the tank is equipped with safety valves, pressure sensors, and temperature sensors to ensure internal pressure and temperature remain within safe limits.
Supply System Connection: Liquid oxygen tanks are typically connected to the supply system to deliver liquid oxygen to the required locations. The supply system includes equipment such as liquid oxygen pumps, pipes, and valves, which are used to extract liquid oxygen from the tank and transport it to the customer's end.
Liquid oxygen tanks play a crucial role in storing and maintaining liquid oxygen in liquid oxygen stations. Their design and use must strictly adhere to relevant safety regulations and operational procedures to ensure the safety and reliability of the storage and supply process.
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," focusing solely on the development of green energy equipment. We dedicate products and services with high cost-performance to society!