Shandong Zhongjie Special Equipment (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 seven business centers: boilers, deep-freezing containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three factory areas on Jinnan Road, East Yangtze Road, and Bohai Road, covering a total of 200,000 square meters. The main workshop is 83,000 square meters. Currently, there are 710 employees, including 247 engineering and technical personnel 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, as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Liquid Argon Storage Tanks are equipment used for storing and transporting liquid argon. Their application scope and characteristics are as follows:
Application Scope:
Industrial Applications: Liquid argon storage tanks are widely used in various industrial sectors, such as metal processing, electronic manufacturing, semiconductor production, and more.
Applications: Liquid argon storage tanks are used in the field for cryogenic preservation of biological samples, cells, tissues, and vaccines.
Lab Applications: Liquid Argon Tanks are used in scientific research labs for low-temperature experiments, cryogenic storage, and sample processing, etc.
Features:
Low-temperature performance: With a boiling point of -185.7°C, liquid argon tanks must have excellent low-temperature insulation properties to maintain the低温 state of liquid argon.
High sealing property: Liquid argon storage tanks must have excellent sealing performance to prevent evaporation loss of liquid argon and the entry of external air.
Safety: Liquid argon is a flammable and explosive substance, thus the liquid argon storage tank must be equipped with safety valves, leak detectors, and other safety devices to ensure the safe operation of the tank.
High Capacity: The capacity of liquid argon tanks ranges from a few liters to several thousand liters, and the appropriate capacity can be selected based on demand.
Cautionary Notes:
Protective Gear: When handling liquid argon storage tanks, it is mandatory to wear appropriate protective gear, including gloves, protective clothing, and non-slip shoes, to safeguard against the low temperatures of liquid argon and other hazards.
Ventilation Requirements: In

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. Choose suitable materials, such as stainless steel and aluminum alloys, to ensure the tank's corrosion resistance and low-temperature performance.
Insulation and protective measures: Low-temperature liquid storage tanks should be equipped with effective insulation to reduce 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 a safe range. The pressure control system should be capable of promptly detecting and adjusting the pressure inside the tank to prevent safety risks caused by 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, with regular inspections and maintenance to prevent leaks. Additionally, appropriate fire protection equipment and fire extinguishers should be provided to address fire risks.
Safe Operation and Training: Operators must undergo relevant safety training, familiarize themselves with the safe operation procedures and emergency response measures for low-temperature liquid storage tanks. Adhere to the correct operational steps to ensure safe operation.
Regular inspections and

Oxygen storage tanks and liquid oxygen storage tanks are equipment used for storing oxygen, but they have some differences: Storage form: Oxygen storage tanks are typically used for storing gaseous oxygen, whereas liquid oxygen storage tanks are used for storing liquid oxygen. Oxygen is in a gaseous state at room temperature but is cooled to a liquid state at low temperatures for more efficient storage and use. Storage pressure: Oxygen storage tanks usually store high-pressure oxygen, with pressures generally around 200-300 bar. Liquid oxygen storage tanks store liquid oxygen at lower pressures, usually around 2-5 bar. Storage capacity: Oxygen storage tanks generally have smaller capacities, suitable for personal or small-scale use. Liquid oxygen storage tanks have larger capacities, suitable for industrial or large-scale applications. Storage method: Oxygen storage tanks are stored in a gaseous form through compressed gas storage. Liquid oxygen storage tanks are stored in a liquid form by cooling the oxygen to temperatures below its boiling point to convert it into a liquid. Safety requirements: Due to the high oxidizing nature of liquid oxygen, liquid oxygen storage tanks require more stringent safety standards in design and use. Liquid oxygen storage tanks typically need to have good thermal insulation, leak control, and fire prevention measures to ensure safe operation. It should be noted that the specific design and specifications of oxygen storage tanks and liquid oxygen storage tanks may vary depending on different regions and application sites. When using these tanks, follow applicable regulations, standards, and safety guidelines, and cooperate with local regulatory authorities and personnel to ensure the safety and reliability of the tanks.

Maintaining and being mindful of liquid nitrogen storage tanks is crucial; here are some key points:
Maintenance:
Regular Inspections: Conduct regular inspections of the liquid nitrogen tank's exterior, valves, pipes, and other components to ensure they are in perfect condition. Pay special attention to check for any leaks, corrosion, or other forms of damage.
Clean Storage Tanks: Regularly clean liquid nitrogen storage tanks to remove internal dirt and deposits. Use appropriate cleaning agents and tools, following the cleaning procedures and safety operation protocols.
Liquid Nitrogen Refill: Refill liquid nitrogen regularly as needed. Ensure the storage tank maintains an adequate supply to meet usage requirements.
Maintain Pressure: Regularly inspect the liquid nitrogen tank's pressure to ensure it stays within the safe range. Perform pressure testing and adjustments as needed.
Corrosion Protection: Depending on the material of the tank and its operating environment, appropriate corrosion prevention measures are taken to extend the service life of the tank. For instance, applying corrosion-resistant coatings and conducting regular corrosion protection treatments.
Cautionary Notes:
Safe Operation: When using liquid nitrogen tanks, strict adherence to safety operating procedures and standards is mandatory. Operators must be trained, knowledgeable about the properties and safety requirements of liquid nitrogen, and familiar with the tank equipment and operational procedures.
Safety Measures: When using liquid nitrogen tanks, it is essential to take necessary precautions, such as wearing protective gloves and suits. Avoid direct contact with liquid nitrogen to prevent frostbite.
Leakage Control: Regularly inspect the liquid nitrogen tanks for leaks and equip with leak detectors and alarm systems. In case of a leak, take immediate measures to control it and carry out repairs.
Ventilation Requirements: In enclosed spaces where liquid nitrogen storage tanks are in use, adequate ventilation must be ensured.
Our company places great emphasis on technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. We have over 600 types of 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. Our key products such as welding technology for temperature and pressure vessels, biomass boiler emission reduction, and waste heat recovery have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology, which has been appraised as internationally competitive at the provincial level. Choose Zhongjietech for a partnership that creates brilliance together!