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 and GC2/Class pressure pipeline installation licenses, as well as equipment and machinery installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a director 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 safe operation of low-temperature liquid storage tanks is primarily crucial in the following aspects:
Tank design and material selection: The tank design must comply with relevant safety standards and regulations, capable of withstanding the pressure and temperature of low-temperature liquids. Select suitable materials such as stainless steel and aluminum alloys to ensure the tank's corrosion resistance and low-temperature performance.
Insulation and Protection Measures: Low-temperature liquid storage tanks should be equipped with effective insulation to minimize heat transfer and evaporation of the liquid. The selection and installation of the insulation should comply with relevant standards and requirements. Additionally, protective measures such as anti-freezing and anti-explosion measures should be implemented to ensure the safe operation of the tank.
Pressure Control and Safety Valves: Low-temperature liquid storage tanks should be equipped with reliable pressure control systems and safety valves to ensure the pressure within the tank remains within safe limits. The pressure control system should be capable of promptly detecting and adjusting the pressure inside the tank to prevent safety risks from excessive or insufficient pressure.
Leak and Fire Protection: Low-temperature liquids are highly flammable, so measures must be taken to prevent leaks and fires. Storage tanks and related pipelines should have good sealing properties and be regularly inspected and maintained to prevent leaks. Additionally, appropriate fire protection equipment and fire extinguishers should be provided to address fire risks.
Safety Operation and Training: Operators must undergo relevant safety training, familiarize themselves with the safety operation procedures and emergency response measures for low-temperature liquid storage tanks. Adhere to correct operational steps to ensure safe operation.
Regular inspections and

The stable pressure design of a 15 cubic meter liquid argon tank requires consideration of the following aspects:
Tank Pressure: Determine the design pressure of the tank to meet the storage and supply requirements of liquid argon. Establish an appropriate design pressure range based on the properties and usage conditions of liquid argon.
Pressure Regulation System: Select an appropriate pressure regulation system to maintain stable pressure within the storage tank. The pressure regulation system typically includes components such as pressure regulators, pressure sensors, and control valves, which are used for monitoring and adjusting the pressure inside the tank.
Pressure Sensor: Install a pressure sensor to monitor the pressure changes inside the tank in real-time. The sensor transmits pressure signals to the pressure regulation system, allowing for timely adjustment of the control valve to maintain stable pressure within the tank.
Control Valve: Select an appropriate control valve for regulating gas flow and pressure within the storage tank. The control valve should have excellent regulating performance and stability to ensure the pressure within the tank remains within the set range.
Safety Valve: Install a safety valve to automatically release gas when the pressure inside the storage tank exceeds the set value, preventing overpressure. The safety valve should be selected and installed based on the design pressure and capacity of the storage tank.
Voltage Stabilization System Control: Equipped with a suitable control system for monitoring and regulating the operation of the voltage stabilization system. The control system enables automatic adjustments and alarm functions to ensure stable and safe pressure within the storage tank.
It is important to note that the design of the voltage stabilization should be tailored to the specific engineering requirements and operational conditions of the liquid argon storage tank, adhering to relevant local laws, regulations, and standards. When designing and installing the voltage stabilization system, it is recommended to consult with experienced engineers or relevant institutions to ensure the reliability and safety of the system.

The medical oxygen steel cylinder filling plant, in addition to the liquid oxygen storage tank, includes the following components:
Oxygen Compressor: Oxygen compressors are used to compress gaseous oxygen into high-pressure oxygen. These compressors are typically made with special materials and designs to ensure safe handling and compression of oxygen.
Oxygen Purification System: The oxygen purification system is designed to remove impurities and contaminants from oxygen, ensuring the purity and quality of the supplied oxygen. The system typically includes filters, adsorbents, and molecular sieves.
Oxygen Storage System: In addition to liquid oxygen tanks, the oxygen filling area may also include a gaseous oxygen storage system for temporary storage and supply of gaseous oxygen. The gaseous oxygen storage system typically includes high-pressure oxygen cylinders or gas storage tanks.
Filling Equipment: Filling equipment is used to transfer oxygen from liquid oxygen storage tanks or gaseous oxygen storage systems into medical oxygen steel cylinders. The filling equipment typically includes filling machines, filling pipelines, and filling control systems.
Oxygen Quality Monitoring System: The oxygen quality monitoring system is used to monitor the quality and purity of oxygen being filled. Quality checks and monitoring are performed on the filled oxygen through an oxygen analyzer or other detection equipment.
Safety Facilities: The filling area should be equipped with corresponding safety facilities such as fire alarm systems, oxygen leak detection systems, and ventilation systems to ensure the safety and protective measures during the filling process.
It is important to note that the design and equipment configuration of the medical oxygen cylinder filling area should comply with relevant regulations, standards, and specifications. During the filling process, strict adherence to operational procedures and safety requirements is essential to ensure the safe supply of oxygen.

The use of liquid oxygen storage tanks requires special attention to the following safety matters:
Training: Operators of liquid oxygen tanks must undergo training to understand the properties of liquid oxygen, safety operating procedures, and emergency response measures. Only trained personnel are authorized to operate liquid oxygen tanks.
Safety Operating Procedures: Establish and adhere to the safety operating procedures for liquid oxygen tanks, including proper operational procedures, protective measures, and emergency response plans. Ensure operators follow the procedures to minimize accident risks.
Protective Measures: When using liquid oxygen tanks, necessary protective measures must be taken, such as wearing protective gloves and suits. Avoid direct contact with liquid oxygen to prevent frostbite.
Leakage Control: Conduct regular inspections of liquid oxygen storage tanks for leaks, and equip with leak detectors and alarm systems. In the event of a leak, take immediate measures to control the leakage and perform repairs.
Fire Prevention Measures: Liquid oxygen has a high oxygen content, which can easily cause fires. Measures such as setting up fire barriers around liquid oxygen storage tanks and using fire-retardant coatings are taken to prevent fires from occurring and spreading.
Static Protection: Electrostatic buildup in liquid oxygen tanks may cause sparks, increasing the risk of fire. Measures such as using static-conductive materials and anti-static equipment are taken to reduce the accumulation and release of static electricity.
Ventilation Requirements: Ensure adequate ventilation within the enclosed space of the liquid oxygen storage tank to expel vapor produced by the evaporation of liquid oxygen.
ZJ Special Equipment adheres to the grand vision of "realizing employees' dreams, creating customer value, and striving for the prosperity and strength of our motherland," focusing on the development of green energy equipment industry, and dedicating high-value products and services to society!