Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, A2-grade pressure vessel manufacturing license, A2-grade pressure vessel design license, B-grade boiler installation, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as a qualification for the installation of electromechanical equipment. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 occupational health and safety management system, and the American ASME/U2 certification.
The installation of the safety valve on the liquid oxygen storage tank is a crucial component to ensure that the tank can release pressure in a timely manner during overpressure situations, protecting the tank and related equipment. Below are the steps for installing the safety valve on the liquid oxygen storage tank:
Determine the rated pressure of the safety valve: Select an appropriate safety valve based on the design pressure and flow requirements of the liquid oxygen storage tank. Ensure the rated pressure of the safety valve meets the tank's specifications and complies with relevant safety standards and regulations.
Valve Installation Location: Select an appropriate location for installing the safety valve. Typically, the safety valve should be mounted on the top or side of the liquid oxygen storage tank to ensure timely pressure release in case of overpressure situations.
Preparation for installation interface: Prepare the corresponding interfaces based on the connection method of the safety valve. This may include welding interfaces, threaded interfaces, or flange interfaces, etc. Ensure the tightness and firmness of the connections.
Install the safety valve: Mount the safety valve onto the prepared interface. Follow the installation instructions for the safety valve to ensure proper connection and tightening.
Adjustment and Testing: After installation, adjust and test according to the safety valve requirements. Ensure the opening and closing pressures of the safety valve meet the design specifications, and conduct a leak test to ensure its sealing.
Connect discharge piping: The discharge piping of the safety valve should be properly connected to the outlet of the safety valve. The discharge piping should have sufficient diameter and flow capacity to ensure effective discharge of overpressure gas when the safety valve is opened.
Identification and Documentation: Label safety valves and discharge pipes with relevant information such as rated pressure, flow rate, and installation date. Additionally, record the installation details and test results of the safety valves for future reference and maintenance.
When installing the safety valve of the liquid oxygen storage tank, it is imperative to follow relevant safety regulations and operational guidelines. If you lack the necessary experience and knowledge, it is advisable to seek assistance and guidance from professionals to ensure the correct installation and reliable operation of the safety valve.

When selecting the insulation material for a low-temperature liquid storage tank, consider the following factors:
Thermal Conductivity: The lower the thermal conductivity of an insulating material, the better its insulating performance. Therefore, materials with lower thermal conductivity should be chosen, such as polyethylene foam (EPS), polyester foam (PUR), and silicate fibers.
Density: The density of insulating materials also affects their insulating performance. Generally speaking, the higher the density, the better the insulating performance. However, excessively high density may increase the weight and cost of the storage tank. Therefore, a balance needs to be struck between insulating performance and the requirements of the tank structure.
Corrosion Resistance: Due to the unique working environment of low-temperature liquid storage tanks, the insulation material must have excellent corrosion resistance to withstand the侵蚀 of low-temperature liquids. For instance, glass fiber and silicate fiber offer good corrosion resistance.
Reliability and durability: Insulation materials must exhibit good reliability and durability, maintaining their insulating properties over the long term. Select materials that have been verified and tested to ensure quality and performance.
Construction convenience: The ease of installation and maintenance of the insulating material is also a factor to consider. Choosing materials that are easy to install and maintain can enhance construction efficiency and reduce costs.
Environmental Friendliness: Consider selecting environmentally friendly insulation materials, such as recyclable ones, to minimize impact on the environment.
Considering these factors, select appropriate insulating materials to ensure excellent thermal insulation and durability, guaranteeing the safety and efficient operation of low-temperature liquid storage tanks. When choosing insulating materials, it's advisable to consult engineers or consulting agencies for more accurate advice and guidance.

The Zhongjie liquid oxygen storage tank boasts the following notable advantages:
Material: Made of stainless steel, offering excellent corrosion and high-temperature resistance, ensuring the tank's long-term stable operation.
Manufacturing Process: The adopted manufacturing processes and equipment ensure the quality and precision of the tank's construction, meeting all process requirements.
Safety Reliable: The tank meets stringent design and manufacturing standards, equipped with safety valves, pressure sensors, and other safety equipment to ensure operation within normal working pressure and to handle emergencies.
Energy-saving: Tanks feature optimized insulation design and thermal insulation materials to reduce energy loss and enhance energy utilization efficiency.
High Capacity: The storage tank features a large capacity design, capable of meeting liquid oxygen storage needs for various scales and requirements.
Flexible and Adjustable: The tank features a design that allows for capacity adjustment and expansion to meet actual needs.
Easy to operate and maintain: The tank features a simple and user-friendly interface and control system, facilitating operation and maintenance for operators.
Longevity: The tank boasts excellent durability and corrosion resistance, ensuring long-term stable operation and reducing the frequency of replacements and maintenance.
Eco-friendly Energy-saving: Tanks are constructed with environmentally friendly materials and processes, reducing environmental impact, and through energy-saving design and operation, lowering energy consumption.
Customized Services: ZheJie Special Equipment offers customized design and services for liquid oxygen storage tanks, tailored to meet the specific requirements and needs of clients, ensuring personalized satisfaction.
These advantages make Zhongjie Liquid Oxygen Storage Tanks a reliable and safe solution for liquid oxygen storage, widely used in industries, scientific research, and more.

Low-temperature industrial gas filling stations are equipment used to fill liquid low-temperature industrial gases (such as liquid oxygen, liquid nitrogen, liquid argon, etc.) into gas storage tanks. Below is some basic information about low-temperature industrial gas filling stations:
Tank Type: Low-temperature industrial gas tanks typically use double-walled vacuum insulated tanks, with the inner wall for storing liquid gas and the outer wall for insulation to reduce heat transfer and evaporation losses of the liquid gas.
Filling Equipment: Low-temperature industrial gas storage tank filling stations include liquid-gas filling pumps, filling pipelines, flowmeters, pressure sensors, and other equipment. Liquid-gas filling pumps are used to extract liquid gas from storage tanks or gas holders and fill it into the target storage tank.
Filling Process: The operational procedure at the filling station typically includes the following steps: Preparation (checking equipment, preparing filling medium), Equipment Connection (connecting filling pumps, pipes, etc.), Equipment Activation (starting the filling pump, adjusting flow and pressure), Filling Operation (filling liquid gas into the target storage tank), Monitoring and Control (monitoring parameters such as pressure and flow during the filling process to ensure safety and quality), and Completion of Operation (shutting down equipment, cleaning the work area).
Safety Measures: Strict adherence to relevant safety operation procedures and standards is required during the operation of low-temperature industrial gas storage tank filling stations. Operators must receive training to understand the properties and safety precautions of liquefied gases. Additionally, filling stations should be equipped with safety equipment such as pressure sensors and safety valves to ensure safety during the filling process.
Quality Control: Quality control is essential during the filling process at the filling station, including monitoring parameters such as flow rate, pressure, and temperature of the filling medium to ensure accuracy and quality of the filling.
It is important to note that the operation of low-temperature industrial gas filling stations must be carried out by trained personnel and strictly adhere to the relevant operational procedures and safety measures. Furthermore, the design and manufacture of the filling stations should comply with applicable standards and regulations to ensure the safety and reliability of the equipment.
Our company attaches great importance to technological innovation and R&D design, boasting one municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc., and are equipped with over 600 types of instruments and equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. The key products and technologies we have developed, such as welding for temperature and pressure vessels, emission reduction for biomass boilers, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling tungsten inert gas arc welding (PAW-GTAW) technology. After being appraised as a provincial-level scientific and technological achievement, our technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's create brilliance together!