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 has 7 business centers: boiler, deep-freeze container, pressure vessel, central air conditioning, engineering installation, international trade, and Internet of Things. It has three factory areas 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. It currently employs 710 people, including 247 engineering technicians and 82 middle-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 Ministry of Industry and Information Technology. 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.
The low-temperature storage tank boasts several advantages:
Storage: Low-temperature storage tanks can maintain liquid low-temperature substances (such as liquid nitrogen, liquid oxygen, etc.) at low temperatures, preserving their liquid state. Compared to gas storage, liquid storage significantly increases storage density and saves space.
Long-term Storage: Low-temperature storage tanks can store low-temperature materials for extended periods, prolonging their service life. By controlling the tank's internal temperature and the performance of the insulation layer, the evaporation and oxidation of the liquid materials can be slowed down, maintaining their stability and purity.
Safety: Low-temperature storage tanks feature excellent safety performance. The tanks are made with special materials and structural design, capable of withstanding low temperatures and high pressure environments. Additionally, the tanks are equipped with safety devices, such as pressure relief valves and liquid level alarms, to ensure safe operation and usage.
Multi-Domain Applications: Low-temperature storage tanks are widely used in various fields. They can be used for storing liquid oxygen and providing oxygen supply; in industrial applications, they are suitable for storing liquefied natural gas (LNG) and liquid nitrogen, among other process gases; in scientific research, they can be used for storing low-temperature experimental samples.
Environmental Protection and Energy Saving: Low-temperature storage tanks enable effective storage and utilization of low-temperature materials, reducing energy waste and environmental pollution. During the storage and transportation of liquid substances, energy loss is minimized, improving energy utilization efficiency.
In summary, low-temperature storage tanks offer advantages such as storage, long-term storage, safety, multi-industry applications, and environmental protection and energy saving. This makes them a crucial equipment for storing and supplying low-temperature substances, playing a vital role in various fields.

Low-temperature liquid oxygen storage tanks typically require certain safety accessories to ensure safe operation and to address potential risks. The following are some common safety accessories for low-temperature liquid oxygen storage tanks:
Pressure Sensor: Used to monitor pressure changes within storage tanks. If the pressure exceeds the set range, it will trigger an alarm or automatically stop filling measures to prevent overpressure in the tank.
Safety Valve: Used to automatically release gas when the pressure inside the storage tank exceeds the set value, preventing overpressure. The safety valve should be selected and installed based on the design pressure and capacity of the storage tank.
Pressure Relief Device: Designed to release gas into a safe area when the pressure inside the storage tank exceeds safe levels, thereby reducing the tank's pressure. The pressure relief device typically includes relief valves, relief piping, and the like.
Level sensor: Used to monitor the level change of liquid oxygen inside storage tanks to ensure an adequate supply of liquid oxygen and prevent overfilling.
Temperature sensor: Used to monitor temperature changes within the storage tank to ensure the liquid oxygen temperature remains within a safe range.
Fire Detectors and Fire Suppression Systems: Designed to monitor fire risks around storage tanks and activate fire suppression systems as needed to prevent the spread of fires to adjacent areas.

When selecting a liquid oxygen tank with a medical oxygen concentrator, several factors should be considered:
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.
Ease of operation: Choose an oxygenator that is simple to operate and user-friendly. Consider the methods for 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: Understand the maintenance requirements and after-sales support for the oxygenator. Ensure timely access to repairs and technical assistance to ensure the normal operation and maintenance of the oxygenator.
Cost-Effective: Choose a product with a good cost-performance ratio, considering the price, performance, and features of the oxygenator. Select the appropriate oxygenator based on actual needs and budget.
Note that when selecting a liquid oxygen storage tank with a medical oxygen concentrator, adhere to the relevant equipment procurement regulations and standards. It's recommended to consult with equipment suppliers or relevant institutions to ensure the chosen concentrator meets the requirements and safety standards.

Before using the liquid oxygen tank, the following preparations must be made:
Safety Inspection: Ensure the tank and its surrounding environment are safe. Check for any damage, leaks, or other potential hazards to the tank. Make sure there are no flammable materials or other hazardous items in the vicinity of the tank.
Tank Preparation: Inspect the tank's exterior, including the shell, welds, valves, and fasteners. Ensure there are no visible damages or corrosion. Check that the insulation layer is intact and undamaged.
Liquid Oxygen Filling: Utilize liquid oxygen supply equipment to fill the storage tank. Ensure that the flow rate and pressure of liquid oxygen are maintained within safe limits during the filling process.
Pressure Control: Storage tanks should be equipped with pressure control devices to ensure the internal pressure of the tank remains within a safe range. Inspect and adjust the pressure control devices to ensure they are functioning properly.
Valve Operation: Check that the valves and connecting parts of the storage tank are functioning properly. Ensure the valves open and close smoothly and reliably. Adjust the opening and closing status of the valves as needed.
Safety equipment: Inspect the safety equipment around the storage tank, such as fire separation areas and alarm systems, to ensure they are functioning properly.
Operator Training: Ensure operators are knowledgeable about the safe operation of liquid oxygen storage tanks.
Shandong Zhongjie Special Equipment, welcome customers to visit our factory for cooperation discussions.