Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company operates seven business centers: boiler manufacturing, deep-freezing containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three factory sites on Jinnan Road, East Yangtze Road, and Bohai Road, covering a total of 200,000 square meters. The main workshop spans 83,000 square meters. The company currently employs 710 people, including 247 engineers and technicians, 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 named a "Specialized and New Enterprise in Shandong Province" by the Industry and Information Technology Department. In June 2022, it was identified as a "Gazelle Enterprise in Shandong Province" and in August 2022, it was recognized as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The use of liquid nitrogen storage tanks in rapid freezing technology offers several advantages:
Rapid Freezing Speed: With a temperature as low as -196°C, liquid nitrogen can quickly lower the surface temperature of food using liquid nitrogen storage tanks, achieving rapid freezing. Compared to traditional freezing methods, liquid nitrogen freezing significantly reduces freezing time while preserving the quality and texture of the food.
Uniformly Frozen Effect: The liquid nitrogen rapid freezing technology achieves rapid and even freezing of food. Liquid nitrogen is喷射ed onto the food surface in a gaseous form, quickly absorbing heat and turning into a liquid, thereby ensuring even freezing of the food and preventing crystallization and lumping during the freezing process.
Maintain Food Quality: Liquid nitrogen rapid freezing quickly chills food, reducing crystallization and caking during the freezing process, thereby preserving the quality and texture of the food. During the rapid freezing process, liquid nitrogen rapidly lowers the surface temperature of the food, forming tiny frozen structures, effectively retaining the food's moisture and nutritional content.
Flexibility and Adaptability: The liquid nitrogen tank can be adjusted and controlled according to different types of food and freezing requirements. The injection speed and angle of liquid nitrogen can be adjusted based on the size, shape, and freezing needs of the food to achieve optimal freezing effects.
Environmental Protection and Energy Saving: Liquid nitrogen rapid freezing technology, compared to traditional freezing methods, can save more energy and resources. Liquid nitrogen evaporates rapidly during the freezing process, causing environmental pollution and generating waste water and waste gas.
Be mindful that when using liquid nitrogen tanks for rapid freezing, it is crucial to adhere to the relevant safety operating procedures and guidelines. Ensure that operators are equipped with the necessary safety awareness and operational skills to prevent accidents. Additionally, consult

The reason for occasional venting of liquid oxygen tanks is primarily to maintain the safe pressure range within the tank and prevent excessive pressure buildup. The following are several scenarios where liquid oxygen tanks may be vented occasionally:
Pressure Control: During the operation of the liquid oxygen storage tank, due to the evaporation of liquid oxygen and temperature changes, the pressure inside the tank will vary. To maintain the safe pressure range within the tank, regular venting is required to control the tank's pressure within the safe limits.
Prevent Excessive Pressure Build-up: During oxygen filling or usage, external factors or operational errors may cause the pressure inside the liquid oxygen tank to exceed the safe limit. To prevent excessive pressure build-up, timely venting is required to reduce the pressure within the tank.
Prevent Gas Accumulation: There may be some gas impurities in liquid oxygen tanks, such as air and water vapor. These gases can condense into liquids or solids at the low temperature of liquid oxygen, blocking pipes or affecting the normal operation of the tank. Regularly releasing gas can expel these impurities, keeping the tank clean and unobstructed.
It is essential that the discharge operation of liquid oxygen be conducted by trained personnel and strictly adhere to the relevant operational procedures and safety measures. During the discharge process, attention must be given to prevent any leakage of liquid oxygen and contact with it, ensuring the safety and reliability of the operation.

The Zhongjie liquid oxygen storage tank boasts the following significant advantages:
Material: Made of stainless steel, offering excellent corrosion and high-temperature resistance, ensuring the tank's long-term stable operation.
Our manufacturing process: Utilizes advanced manufacturing techniques and equipment to ensure the quality and precision of the storage tank, meeting all process requirements.
Safety & Reliability: Tanks are designed and manufactured to stringent standards, equipped with safety valves, pressure sensors, and other safety devices to ensure operation within normal working pressure ranges and to handle emergencies.
Energy-saving: Tanks feature optimized insulation design and thermal insulation materials to minimize energy loss and enhance energy utilization efficiency.
High Capacity: The storage tank features a large capacity design to meet the liquid oxygen storage needs of various scales and requirements.
Flexible and Adjustable: The tank features a design that allows for capacity adjustments and expansions 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.
Environmental Protection and Energy Saving: Tanks are made with eco-friendly materials and processes, minimizing environmental impact, and through energy-saving design and operation, reducing energy consumption.
Customized Services: Zhejiang Jieteng provides customized design and services for liquid oxygen storage tanks, tailored to meet customers' specific requirements and needs, fulfilling individualized customer demands.
These advantages make Zhongjie Liquid Oxygen Storage Tanks a reliable and safe solution for liquid oxygen storage, widely used in industries, scientific research, and other fields.

When selecting a liquid oxygen storage tank with a medical oxygen concentrator, consider the following factors:
Requirement: First, determine the oxygen demand of the institution or individual. Select the appropriate oxygen concentrator model and specification based on the required oxygen flow rate and pressure.
Safety and Reliability: Ensure the selected oxygen concentrator has high levels of safety and reliability. Choose products that comply with relevant standards and regulations, featuring safety functions such as overpressure protection, leakage protection, and overload protection.
Operational convenience: Select an oxygenator with simple and user-friendly operation. Consider the methods of adjusting oxygen flow and concentration, as well as the clarity and readability of the operating interface.
Quality and Reputation: Choose an oxygen concentrator with excellent quality and reliability. Refer to customer reviews, word-of-mouth, and institutional endorsements when selecting a product.
Maintenance and After-Sales Service: Familiarize yourself with the maintenance requirements and after-sales support for the oxygenator. Ensure timely access to repairs and technical assistance to ensure the smooth operation and maintenance of the oxygenator.
Cost-effectiveness: When considering the price, performance, and features of an oxygenator, choose a product with a favorable cost-performance ratio. Select an oxygenator that suits your actual needs and budget.
Be mindful that when selecting liquid oxygen tanks with medical oxygen generators, adhere to relevant equipment procurement regulations and standards. It's advisable to consult with equipment suppliers or relevant institutions to ensure the oxygen generators meet your needs and safety requirements.
Our company attaches great importance to technological innovation and research and development design, boasting 1 city-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. Equipped with over 600 various 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, our research and development of key products 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, Heze City Innovation and Excellence Projects, and other provincial and municipal science and technology projects. We have accumulated a total of 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 Li Yajiang of Shandong University, has jointly developed deep cryogenic vessel processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology. After the provincial scientific and technological achievement evaluation, our technical level has reached international standards in the field of deep cryogenic vessel manufacturing. Choose Zhongjietech, and let's create brilliance together!