Shandong Zhongjie Special Equipment Co., Ltd. (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 area of 200,000 square meters, with the main workshop spanning 83,000 square meters. The company currently employs 710 people, including 247 engineers and technicians 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 Ministry of Industry and Information Technology. In June 2022, it was named 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.
The manufacturing process for the heads and cylinders of low-temperature storage tanks typically includes the following steps:
Material Preparation: Select suitable materials such as low-temperature alloy steel or stainless steel according to design requirements and specifications. Inspect and verify the materials to ensure they meet quality standards.
Sheet Cutting: Sheets are cut to the specified dimensions and shapes. Common cutting methods include flame cutting, plasma cutting, or laser cutting, among others.
Bending and forming: Cut sheets are bent and shaped to create shapes for covers and cylinders. Common forming methods include cold bending, hot bending, or hydraulic forming, etc.
Welding: Welds the formed sheets together to create the structure of the head and cylinder. Common welding methods include manual arc welding, gas shielded welding, or laser welding, etc.
Weld Seam Treatment: Process the weld seams after welding, such as sanding, polishing, or applying anti-corrosion coatings, to enhance the quality and appearance of the welds.
Inspection and Acceptance: Perform inspections and acceptance on the finished caps and cylinders to ensure their quality and compliance with design specifications. Common inspection methods include ultrasonic testing, radiographic inspection, or liquid penetrant testing, etc.
Strengthening and support: As required, process and install reinforcement and support on the heads and cylinders to enhance structural strength and stability.
Surface Treatment: The heads and cylinders undergo surface treatment, such as coating with anti-corrosion paint, hot-dip galvanizing, or polishing, to enhance their corrosion resistance and aesthetic quality.
It's important to note that the manufacturing process for low-temperature storage tanks must comply with relevant standards and regulations to ensure the quality and safety of production. During manufacturing, strict adherence to safety operation procedures and necessary protective measures should be taken to ensure the safety of the operators.

During the process of constructing low-temperature liquid oxygen storage tanks with central oxygen supply, particular attention should be paid to the following aspects:
Safe Operation: Strict adherence to safety operating procedures and standards is mandatory during the storage tank installation process. Operators must be trained, familiar with the properties and safety requirements of liquid oxygen, and knowledgeable about the equipment and operational processes to ensure safe operations.
Fire Prevention Measures: Liquid oxygen has a high oxygen content, making it prone to fire. During the assembly process, necessary fire prevention measures should be taken, such as installing fire barriers, using fire-retardant coatings, and prohibiting open flames, to prevent the occurrence and spread of fires.
Leak Control: Pay attention to leak control during the installation process. Oxygen leakage can lead to increased oxygen concentration, raising the risk of fire and explosion. Leak detectors and alarm systems should be equipped to detect and control leaks in a timely manner, and appropriate emergency measures should be taken.
Oxygen Concentration Monitoring: During the installation process, the oxygen concentration around the liquid oxygen storage tank should be monitored regularly. High oxygen concentrations can intensify the combustion of flammable materials, increasing the risk of fire and explosion. Take timely measures to ensure the oxygen concentration remains within a safe range.
Grounding and Static Protection: During the liquid oxygen process, ensure proper grounding of the storage tank and related equipment to minimize static accumulation and discharge. Utilize static-conductive materials and anti-static equipment to reduce the risks caused by static discharge.
Regular inspections and maintenance: After the installation is completed, regular inspections and maintenance should be conducted on the liquid oxygen tank. This includes visual inspections, pressure tests, leak detection, etc., to ensure the tank's safety and stability.
Note that during the installation of the central oxygen supply low-temperature liquid oxygen storage tank, it should be operated by experienced personnel and follow relevant safety operation procedures and standards. Throughout the installation process, safety risks should be closely monitored, and timely measures should be taken to ensure the safety and stability of the installation.

Low-temperature liquid storage tanks (such as liquid nitrogen, liquid oxygen, liquid argon, etc.) have several advantages:
High-Density Storage: Low-temperature liquid storage tanks can convert gases into liquids, significantly increasing storage density. Compared to gas storage, liquid storage can hold more material in a relatively smaller space, enhancing storage efficiency.
Low-Temperature Retention: Low-temperature liquid storage tanks are equipped with excellent insulation properties, effectively maintaining the low temperature of the liquid. The design and construction of the insulation layer can reduce heat conduction and loss, keeping the liquid at low temperature and minimizing evaporation and损耗.
Supply: Low-temperature liquid storage tanks provide a stable and consistent liquid supply. Through internal pressure control and pipeline system design, precise liquid delivery 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 risk of gas leaks and explosions. 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.
Versatile Applications: Low-temperature liquid storage tanks are widely used in various fields, such as industrial production and scientific research. Liquids like liquid nitrogen and liquid oxygen can be utilized for freezing, refrigeration, gas supply, and more, meeting diverse industry 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 for various industries.

Liquid Oxygen Tanks are used for storing and supplying liquid oxygen as fuel and oxidizer, playing a crucial role in launch propulsion systems, etc. Industrial Production: Liquid oxygen is used as an oxidizer in industrial production for processes such as combustion, oxidation, and oxygen supply. Liquid Oxygen Tanks are used to store and supply liquid oxygen to meet the demands of industrial applications like metal cutting, welding, and chemical reactions. Equipment: Liquid Oxygen Tanks are utilized in equipment to supply oxygen for uses such as oxygen therapy, oxygen inhalation, and operating rooms. These tanks provide high-purity oxygen while maintaining its低温 state to meet the equipment's oxygen requirements. Laboratory Research: Liquid Oxygen Tanks are used in scientific research and laboratories to provide liquid oxygen as experimental materials and reagents. The low temperature and high purity of liquid oxygen make it widely applicable in laboratories for fields such as materials science, chemical reactions, and biomedical research. In summary, Liquid Oxygen Tanks are essential in various applications, including industrial production, equipment, and laboratory research, providing storage and supply functions for liquid oxygen at the application sites.
ZJ Special Equipment adheres to 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!