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 7 business centers: boiler, 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 of 200,000 square meters, with the main workshop area being 83,000 square meters. Currently, there are 710 employees, including 247 engineers and technicians and 82 intermediate-level technicians. 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.
Liquid Argon Storage Tanks are equipment used for storing and transporting liquid argon. Their application scope and characteristics are as follows:
Application Range:
Industrial Applications: Liquid argon storage tanks are widely used in various industrial fields, including metal processing, electronic manufacturing, semiconductor production, and more.
Application: Liquid argon tanks are used in the field for cryogenic preservation of biological samples, cells, tissues, and vaccines.
Laboratory Applications: Liquid argon tanks are used in scientific research laboratories for low-temperature experiments, cryopreservation, and sample processing, etc.
Features:
Low-temperature Performance: With a boiling point of -185.7°C, liquid argon requires storage containers with excellent low-temperature insulation properties to maintain its低温 state.
High sealing: 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 safe operation.
Large Capacity: The capacity of liquid argon storage tanks ranges from a few liters to several thousand liters, allowing for selection of the appropriate capacity to meet requirements.
Cautionary Notes:
Protective Gear: When operating 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. Select suitable materials, such as stainless steel, aluminum alloy, etc., to ensure the tank's corrosion resistance and low-temperature performance.
Insulation and protective measures: Low-temperature liquid storage tanks should be equipped with an effective insulation layer to reduce heat transfer and evaporation of the liquid. The selection and installation of the insulation layer should comply with relevant standards and requirements. In addition, protective measures such as anti-freezing and explosion-proof 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 inside 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 excessive or low pressure from posing safety risks.
Leak and Fire Protection: Low-temperature liquids are highly flammable, so measures must be taken to prevent leaks and fires. Storage tanks and associated pipelines should have good sealing properties and be regularly inspected and maintained to prevent leaks. Additionally, appropriate fire protection facilities and firefighting equipment should be provided to address fire risks.
Safety Operations 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 proper operational steps to ensure safe operations.
Regular inspections and

Oxygen cylinders and liquid oxygen tanks are devices used for storing oxygen, but they have some distinctions: Storage Form: Oxygen cylinders are typically used for storing gaseous oxygen, whereas liquid oxygen tanks are for storing liquid oxygen. Oxygen is in a gaseous state at room temperature but can be cooled to a liquid state at low temperatures for more efficient storage and use. Storage Pressure: Oxygen cylinders usually contain high-pressure oxygen, with pressures around 200-300 bar. Liquid oxygen tanks store liquid oxygen at lower pressures, generally between 2-5 bar. Storage Capacity: Oxygen cylinders usually have smaller capacities, suitable for personal or small-scale use. Liquid oxygen tanks have larger capacities, suitable for industrial or large-scale applications. Storage Method: Oxygen cylinders store oxygen in a gaseous form, utilizing compressed gas storage. Liquid oxygen tanks store oxygen in a liquid state, converting it to a liquid by cooling it below its boiling point. Safety Requirements: Due to the highly oxidizing nature of liquid oxygen, liquid oxygen tanks require stricter safety standards in design and use. Liquid oxygen tanks usually 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 and liquid oxygen tanks may vary depending on different regions and application sites. When using these tanks, one should follow applicable regulations, standards, and safety guidelines, and cooperate with local regulatory bodies and individuals to ensure the safety and reliability of the tanks.

Maintaining and being aware of the precautions for liquid nitrogen 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 sediments. Use appropriate cleaning agents and tools, and follow the cleaning procedures and safety operation protocols.
Liquid Nitrogen Refill: Refill liquid nitrogen regularly as needed. Ensure that the storage tank maintains an adequate supply of liquid nitrogen to meet usage requirements.
Maintain Pressure: Regularly check the liquid nitrogen tank's pressure to ensure it stays within the safe range. Perform pressure tests and adjustments as necessary.
Corrosion Prevention: Adopt appropriate corrosion prevention measures based on the material and usage environment of the storage tank to extend its service life. For example, applying corrosion-resistant coatings, conducting regular corrosion treatments, etc.
Cautionary Notes:
Safe Operation: Strict adherence to safety protocols and standards is mandatory when using liquid nitrogen tanks. Operators should be trained, knowledgeable about the properties of liquid nitrogen and safety operating requirements, and familiar with the tank equipment and operational procedures.
Safety Precautions: When using liquid nitrogen tanks, necessary safety measures must be taken, such as wearing protective gloves and suits. Avoid direct contact with liquid nitrogen to prevent frostbite.
Leak Control: Conduct regular inspections of liquid nitrogen storage tanks for leaks and equip with leak detectors and alarm systems. In case of a leak, immediate measures should be taken to control the leak and proceed with repairs.
Ventilation Requirements: In enclosed spaces where liquid nitrogen storage tanks are used, adequate ventilation must be ensured.
Our company highly values technological innovation and R&D design. We possess 1 municipal enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We 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 we have developed, such as welding for temperature and pressure vessels, biomass boiler emission reduction, 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 jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement evaluation, our technology level in the field of deep cryogenic container manufacturing has reached international standards. Choose Zhongjie Special Equipment, let's create brilliance together!