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, GB2 and GC2 pressure pipeline installation licenses, and mechanical and electrical equipment installation contracting qualifications. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the 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 American ASME/U2 certification.
Low-temperature liquid storage tanks feature the following characteristics 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 enhances storage density and saves space.
Insulation: Low-temperature liquid storage tanks are equipped with special insulation materials and structural design, effectively reducing heat conduction and maintaining stable temperature for low-temperature liquids. This helps to minimize energy loss and liquid evaporation.
Safety: Low-temperature liquid storage tanks offer excellent safety performance. The tanks are made with special materials and structural design, capable of withstanding low temperatures and high pressures. Additionally, the tanks are equipped with safety devices such as pressure relief valves and level alarms to ensure safe operation and use.
Utilization Advantages:
High Purity Supply: Low-temperature liquid storage tanks can provide high-purity liquid supplies. Through refrigeration and purification processes, high-purity liquid gases can be obtained to meet the requirements of various applications, such as industrial and scientific research fields.
Long-term Storage: Low-temperature liquid storage tanks can store low-temperature liquids for extended periods, thereby extending their service life. By controlling the temperature within the tank and the performance of the insulation layer, the evaporation and oxidation of the liquid substances can be slowed down, maintaining their stability and purity.
Wide Application in Multiple Fields: Low-temperature liquid storage tanks are extensively used in industries such as industrial, scientific research, and others. They can be used for storing liquid oxygen and providing oxygen supply; in the industrial field, they are used for storing liquefied natural gas (LNG) and other process gases; in the scientific research field, they are used for storing 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

Liquid nitrogen storage tanks feature the following characteristics during the construction process:
Low Temperature Construction: The construction of liquid nitrogen tanks must be carried out in a low-temperature environment, as the boiling point of liquid nitrogen is low, approximately -196 degrees Celsius. Construction personnel must take appropriate protective measures, such as wearing insulated clothing and gloves, to protect themselves from低温 injuries.
Welding Technology: A substantial amount of welding is required during the manufacturing process of liquid nitrogen tanks, including the connections of tank walls, bottom plates, top plates, and weld seams. Welding technology is crucial for the quality and safety of the tanks, necessitating the use of appropriate welding methods and materials to ensure the strength and sealability of the welds.
Insulation Layer Installation: Liquid nitrogen tanks must have excellent insulation properties to reduce heat conduction and maintain the low temperature of liquid nitrogen. The installation of the insulation layer requires materials such as polyester foam and glass wool, ensuring the thickness and quality of the insulation layer.
Proper installation steps for liquid nitrogen tanks are as follows:
Site Preparation: Select an appropriate site for tank installation, ensuring it is level, sturdy, and has adequate load-bearing capacity. The site should be kept away from flammable, explosive materials, and other hazardous sources.
Basic Construction: Construction of the foundation based on the tank's dimensions and weight, including excavation of the foundation pit and pouring of concrete foundation. The design and construction of the foundation should comply with relevant standards and specifications.
Tank Installation: Transport the tank to the site and perform a vertical installation. Appropriate lifting equipment and safety measures must be used during the installation process to ensure the stability and safety of the tank.
Pipe connections: Connect the storage tank to the relevant pipeline system as required, including intake pipes, exhaust pipes, and liquid supply pipes, etc. Sealing and testing must be performed during the connection process to ensure the safety of the pipes.

When selecting low-temperature liquefied natural gas (LNG) storage tanks, the following factors should be considered:
Tank Types: Common LNG tank types include vertical fixed-roof tanks, spherical tanks, and horizontal tanks. Select the appropriate tank type based on specific application requirements and site conditions.
Tank Capacity: Determine the tank capacity based on the storage requirements and estimated usage of LNG. The tank capacity should meet the expected storage cycle and supply demand.
Material Selection: LNG tanks typically use low-temperature steel or nickel alloy materials to ensure corrosion resistance and strength in low-temperature environments. Select the appropriate material based on the tank's design pressure and temperature requirements.
Safety Performance: LNG tanks should possess excellent safety features, including seismic resistance, fire resistance, and leakage control capabilities. The tanks must comply with relevant safety standards and specifications, such as API 620, EN 1473, etc.
Maintenance and Inspection: Consider the maintenance and inspection requirements of the tank, including internal cleaning, coating protection, and corrosion prevention measures. The tank design should facilitate maintenance and inspection operations to ensure long-term reliable operation.
Environmental Impact: When selecting LNG tanks, consider their impact on the surrounding environment. The layout and design of the tanks should comply with environmental protection requirements, minimizing noise, vibration, and gas emissions, etc., to reduce environmental impact.
Cost-effectiveness: Considering the investment, operation, and lifecycle costs of the storage tank, select a tank with a favorable cost-performance ratio.
需要注意的是，选型LNG储罐时应遵循相关的和地区的法规、标准和规范。此外，咨询的工程师或储罐制造商，以获取更详细和准确的选型建议。

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 and aluminum alloys, to ensure the tank's corrosion resistance and low-temperature performance.
Insulation and Protection Measures: Low-temperature liquid storage tanks should be equipped with effective insulation to minimize heat transfer and liquid evaporation. The selection and installation of the insulation should comply with relevant standards and requirements. In addition, protective measures such as anti-freezing and explosion-proof measures should be taken 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 that 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, preventing risks from excessively high or low pressure.
Leak and Fire Protection: Low-temperature liquids are highly flammable, so measures should be taken to prevent leaks and fires. Tanks and associated pipelines must have good sealing properties and undergo regular inspections and maintenance to prevent leaks. Additionally, appropriate fire protection equipment and firefighting tools should be provided to address fire risks.
Safety Operation 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 operation.
Regular inspections and
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