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-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and Internet of Things. It has three manufacturing 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. Currently, there are 710 employees, including 247 engineering and technical personnel 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 Industrial and Information Technology Department. 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.
A liquid oxygen tank is a device used for storing liquid oxygen. Liquid oxygen is the liquid form obtained by cooling oxygen below its boiling point and is commonly used in fields such as medical, industrial production, and equipment. Liquid oxygen tanks are typically made of high-strength materials like stainless steel to ensure they can withstand the low temperatures and high pressures of liquid oxygen. The interior of the tank usually has an insulating layer to reduce evaporation of the liquid oxygen and maintain its低温 state. The design and manufacturing of liquid oxygen tanks must consider safety and reliability to prevent leaks and explosions. When using liquid oxygen tanks, strict operational procedures and safety standards must be followed to ensure the safety of personnel and equipment. The development and manufacturing of liquid oxygen tanks are carried out by engineers and technical teams, involving knowledge and technology from various fields such as materials science, mechanical engineering, and chemical engineering. Different manufacturers may employ different design and manufacturing methods to meet the needs and application scenarios of various users.

When cleaning low-temperature liquid storage tanks, the following steps should be taken:
Safety Preparations: Prior to cleaning, ensure there are no remaining liquids or gases inside the tank, and that the tank has been properly emptied and vented. Wear appropriate personal protective equipment, such as protective suits, gloves, and safety shoes.
Cleaning Agent Selection: Choose a cleaner suitable for low-temperature environments and liquid storage tank materials. Common cleaners include acidic and alkaline solutions, organic solvents, or specialized cleaners. Select the appropriate cleaner based on the tank material and the nature of the contaminants.
Cleaning Process: Inject the cleaning agent into the tank and use appropriate tools (such as sprayers, brushes, or high-pressure water) to clean the inner wall of the tank. Multiple cleanings may be performed as needed to ensure removal of contaminants.
Washing and Discharging: After cleaning, rinse with clean water or an appropriate solvent to thoroughly remove cleaning agents and residues. Ensure the tank is dry and discharge the rinse water into an appropriate treatment system.
Inspection and Verification: After cleaning, inspect the tank to ensure no residual contaminants are left inside. Appropriate testing equipment or methods, such as optical inspection, chemical analysis, or ultrasonic testing, can be used to verify the cleaning effectiveness.
Be mindful that when cleaning low-temperature liquid storage tanks, it's crucial to adhere to relevant safety regulations and operational guidelines. Liquid storage tanks are typically highly flammable and exhibit low-temperature characteristics, so operators must strictly follow safety procedures to ensure the safety of personnel and equipment. During the cleaning process, attention should be given to prevent leaks of cleaning agents and contaminants, and appropriate measures should be taken for handling and disposal.

The process of using liquid oxygen storage tanks for pressure regulation and oxygen supply typically includes the following steps:
Liquid Oxygen Storage Tank Oxygen Supply System: Typically, a liquid oxygen storage tank oxygen supply system is installed, which includes a liquid oxygen storage tank, liquid oxygen transmission pipeline, and pressure regulating devices, etc. The liquid oxygen in the storage tank is transported through the pipeline to the pressure regulating device.
Pressure Regulator: The pressure regulator is used to convert high-pressure liquid oxygen into the required low-pressure oxygen. It typically includes a pressure valve, a reducer, and a flowmeter. The pressure valve is used to control the oxygen pressure, the reducer is used to reduce the high-pressure liquid oxygen to the required low pressure, and the flowmeter is used to measure the oxygen flow rate.
Oxygen Supply Pipeline: Low-pressure oxygen from the pressure-regulating unit is transported through the supply pipeline to areas requiring oxygen, such as wards and operating rooms. The pipelines are typically made of stainless steel or plastic, offering excellent airtightness and corrosion resistance.
Oxygen Interface: Install oxygen interfaces at locations requiring oxygen supply, such as hospital beds or operating tables. Oxygen interfaces typically include an oxygen flow regulator and an oxygen connector, used for adjusting oxygen flow and connecting oxygen masks or tubes.
Oxygen Supply and Regulation: Adjust the pressure and flow of oxygen by manipulating the pressure regulating valve of the pressure reducer. Tailor the flow and concentration of oxygen according to the patient's needs, ensuring they receive an adequate oxygen supply.
Note that when using liquid oxygen tanks for pressure regulation and oxygen supply, it is essential to adhere to the relevant equipment operation and safety procedures. Operators must have the appropriate training and skills to ensure the smooth and safe operation of the oxygen supply system. Additionally, regular inspections and maintenance of the system's equipment and pipelines are crucial to ensure their proper functioning and safety.

Liquid Argon Storage Tanks are designed for storing and transporting liquid argon, featuring the following characteristics:
Low-temperature retention performance: The liquid argon storage tank is equipped with special insulation materials and structural design, effectively maintaining the low-temperature state of liquid argon. The tank is internally lined with insulation to minimize heat conduction and loss, ensuring long-term storage of liquid argon.
High sealing performance: The liquid argon tank features excellent sealing properties, effectively preventing any leakage or evaporation of liquid argon. The tank's valves, connectors, and sealing parts are precision-designed and manufactured to ensure reliable sealing performance.
High strength and corrosion resistance: The liquid argon tank is made of high-strength materials, capable of withstanding the high pressure and low temperature of liquid argon. The internal and external surfaces of the tank are specially treated, offering excellent corrosion resistance and resistance to corrosion and oxidation by liquid argon.
Safety Performance: The liquid argon storage tank is equipped with multiple safety protection measures, such as safety valves, pressure sensors, and level monitoring devices. These devices can monitor and control the tank's pressure, temperature, and level, ensuring the tank operates within a safe range.
Reliability and Stability: The liquid argon storage tank has undergone rigorous design, manufacturing, and testing, boasting excellent reliability and stability. The tank is capable of long-term stable storage and transportation of liquid argon, ensuring that the quality and performance of the liquid argon are unaffected.
Easy to operate and maintain: The liquid argon tank is relatively simple to operate and maintain, equipped with valves and fittings that are easy to use. The maintenance work mainly includes regular inspections, cleaning, and repairs, which can extend the service life of the tank.
The performance characteristics of liquid argon tanks make them essential for the storage and transportation of liquid argon, widely used in scientific research, industry, and other fields. When using liquid argon tanks, it is crucial to strictly adhere to the relevant operational specifications and safety requirements to ensure safe usage.
Our company places great emphasis on technological innovation and research and development design. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. 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. The key products and technologies we have developed, such as welding of temperature and pressure vessels, biomass boiler emissions 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 innovative and excellent projects. We have accumulated a total of 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team of our company, in collaboration with Professor Yajiang Li from Shandong University, has jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. After being appraised as a provincial-level scientific and technological achievement, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, let's create brilliance together!