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 license, and GB2/Class, GC2/Class pressure pipeline installation license, as well as mechanical and electrical equipment installation contracting资质. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a council member of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the U.S. ASME/U2 certification.
Low-temperature liquid storage tanks offer the following features and advantages for use:
Features:
Low-Temperature Storage: Low-temperature liquid storage tanks can store low-temperature liquids (such as liquid nitrogen, liquid oxygen, etc.) at low temperatures, maintaining their liquid state. Liquid storage significantly increases storage density and saves space.
Insulation: The low-temperature liquid storage tanks utilize special insulation materials and structural design to effectively reduce heat conduction and loss, maintaining a stable temperature for the低温 liquid. This aids in minimizing energy loss and evaporation of the liquid.
Safety: Low-temperature liquid storage tanks have excellent safety performance. The tanks are made of special materials and have a structural design that can withstand low temperatures and high pressure environments. Additionally, the tanks are equipped with safety devices such as pressure relief valves and liquid level alarms, ensuring safe operation and use.
Utilization Advantages:
High Purity Supply: Low-temperature liquid storage tanks can provide high-purity liquid substances. Through refrigeration and purification processes, high-purity liquid gases can be obtained to meet application requirements in fields such as industry and scientific research.
Long-term Storage: Low-temperature liquid storage tanks are designed for long-term storage of low-temperature liquids, extending their service life. By controlling the temperature inside the tank and the performance of the insulation layer, the evaporation and oxidation of the liquid can be slowed down, maintaining its stability and purity.
Multi-Domain Applications: Low-temperature liquid storage tanks are widely used in fields such as industry and scientific research. They can be used for storing liquid oxygen to provide oxygen supply; in the industrial sector, they can store liquefied natural gas (LNG) and other process gases; in scientific research, they can store low-temperature experimental samples.
Environmental Protection and Energy Saving: Low-temperature liquid storage tanks enable effective storage and utilization of low-temperature liquids, reducing energy waste and environmental pollution. Storage of liquid substances

Maintenance and upkeep are crucial for ensuring the safety of low-temperature storage tanks. Here are some common maintenance measures:
Regular Inspections: Conduct regular checks on low-temperature storage tanks, including inspections of the exterior, internal structure, and anti-corrosion coatings. Check for cracks, corrosion, wear, and other issues, and promptly identify and repair potential safety hazards.
Cleaning and De-icing: Regularly clean the exterior surface and internal structure of the low-temperature storage tank to remove accumulated dirt and ice layers. The buildup of ice can lead to structural damage and corrosion; cleaning and de-icing can extend the lifespan of the tank.
Level Monitoring: Regularly monitor the liquid level in low-temperature storage tanks to ensure it remains within the safe range. Excessive or low levels can lead to overpressure or over-vacuum in the tanks, increasing safety risks.
Leak Detection: Install a leak detection system to regularly check for leaks in low-temperature storage tanks. Leaks can lead to the release and evaporation of liquids or gases, increasing safety risks.
Corrosion Protection Measures: Implement appropriate corrosion protection measures, such as coating protection and corrosion-resistant coatings, to safeguard the metallic structure of low-temperature storage tanks from corrosion damage.
Emergency Fault Handling: Establish an emergency fault handling system to promptly address and repair issues with low-temperature storage tanks, in order to prevent accidents from occurring or escalating.
Training and Development of Personnel: Train and develop operators and maintenance staff to ensure they possess the relevant knowledge and skills for the correct operation and maintenance of low-temperature storage tanks.
Note that maintenance should be tailored to the specific type of tank and operating conditions, adhering to relevant local laws, regulations, and standards. During maintenance, it is recommended to consult with engineers or guidance from relevant institutions to ensure the tank's safety and reliability.

Liquid oxygen storage tanks are widely used in various industries, primarily in the following aspects:
Industry: Liquid Oxygen Tanks are widely used in fields, for storing and supplying liquid oxygen as fuel and oxidizer. Liquid Oxygen Tanks play a crucial role in engine systems, propulsion systems, and oxygen supply systems.
Chemical Industry: Liquid oxygen storage tanks are used in chemical processes for storing and supplying liquid oxygen, employed in oxidation reactions, combustion reactions, and oxygen supply, etc. Refineries, chemical plants, and manufacturers of chemical products are among those that may utilize liquid oxygen storage tanks.
Industry: Liquid Oxygen Tanks are used in the field for storing and supplying liquid oxygen, which is employed in oxygen therapy, respiratory support, and surgeries. Liquid Oxygen Tanks are widely used in hospitals, clinics, and care facilities, among other institutions.
Experimental Research: Liquid Oxygen Tanks are used in scientific research and laboratories to provide liquid oxygen as experimental materials and fuel. Liquid Oxygen Tanks play a significant role in experimental research in fields such as physics, chemistry, biology, and materials science.
Metalworking Industry: Liquid oxygen tanks are used in the metalworking and welding industries to provide high-purity oxygen for processes such as metal cutting, welding, and heat treatment.
Other Industries: Liquid Oxygen Tanks are also used in various other sectors, such as the energy, environmental protection, and food industries, among others. They are employed in areas including energy production, environmental management, and food processing.
It's important to note that the use of liquid oxygen tanks must strictly adhere to relevant safety regulations and operating guidelines to ensure safe operation and usage of the tanks.

Material control for low-temperature liquid storage tanks is a critical aspect to ensure the tank's safety and reliability. The following are some common material control measures:
Material Selection: Choose materials suitable for low-temperature environments, such as low-temperature alloy steel, stainless steel, etc. These materials exhibit excellent low-temperature resistance and crack resistance, maintaining strength and toughness under low-temperature conditions.
Material Quality Control: Ensure the selected materials meet relevant standards and specifications. Conduct chemical composition analysis, mechanical property tests, and impact tests on the materials to ensure their performance meets design requirements.
Welding Material Selection: Choose welding materials suitable for low-temperature environments, such as low-temperature welding rods or welding wires. The welding materials should match the tank material, offering good welding properties and crack resistance.
Welding Process Control: Monitor welding process parameters such as current, voltage, and welding speed to ensure the quality and reliability of weld joints. Techniques with low heat input, such as pulse welding and laser welding, can minimize temperature gradients and residual stresses in the heat-affected zone.
Corrosion Prevention Measures: Apply corrosion-resistant treatments to both the internal and external metal surfaces of the storage tank to extend its service life. Options include corrosion-resistant coatings and paints to protect the tank's metal structure from corrosion.
Material Performance Monitoring: Regularly conduct performance monitoring of the storage tank materials, such as mechanical property tests,
Zhongjie Special Equipment upholds the grand vision of "realizing employees' dreams, creating value for customers, and striving for the prosperity and strength of our motherland," and is dedicated to the development of the green energy equipment industry, offering products and services with high cost-performance to the society!