Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class and GC2/Class pressure pipeline installation licenses, as well as a qualification for electromechanical equipment installation contracting. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the理事 unit of the Shandong Equipment Manufacturing Association. The company has also passed certifications for the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
Low-temperature liquid oxygen storage tanks typically require some 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. In the event of pressure exceeding the set range, it triggers alarms or automatically stops filling measures to prevent overpressure in the tank.
Safety Valve: Used to automatically release gas when the pressure inside the tank exceeds the set value, preventing overpressure. The safety valve should be selected and installed according to the design pressure and capacity of the tank.
Pressure relief device: Used to release gas into a safe area when the pressure inside the storage tank is too high, thereby reducing the pressure on the tank. The pressure relief device usually includes pressure relief valves, relief pipes, etc.
Level sensor: Used to monitor the level change of liquid oxygen inside the storage tank to ensure an adequate supply of liquid oxygen and prevent overfilling.
Temperature Sensor: Used to monitor temperature changes within storage tanks to ensure that the temperature of liquid oxygen inside the tank remains within a safe range.
Fire Detection and Extinguishing Systems: Designed to monitor fire risks around storage tanks and activate the extinguishing system as needed to prevent the spread of fire.

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 offers 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 oxygen concentrator 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 certifications 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 normal operation and maintenance of the oxygenator.
Cost-Effective: Considering the price, performance, and features of the oxygenator, choose a product with a good cost-performance ratio. Select an oxygenator that suits your actual needs and budget.
Be mindful that when selecting liquid oxygen storage tanks with medical oxygen concentrators, adhere to relevant equipment procurement regulations and standards. It's advisable to consult with equipment suppliers or relevant institutions to ensure the chosen concentrator meets your needs and safety requirements.

Routine inspections and maintenance of liquid oxygen storage tanks are crucial for ensuring safe operation. The following are general steps for the daily inspection and maintenance of liquid oxygen storage tanks:
Appearance Inspection: Regularly inspect the exterior of the storage tank, including the shell, welds, valves, and fasteners. Pay attention to any abnormalities such as cracks, corrosion, or deformation.
Leak Detection: Utilize appropriate leak detection equipment to inspect tanks and connecting areas for any leaks. Leak detection methods such as gas detectors or liquid oxygen detection agents can be employed.
Pressure Testing: Regularly conduct pressure tests to inspect the tank's sealing and pressure resistance. Perform pressure tests according to relevant standards and regulations, and record the test results.
Valve and Fitting Inspection: Check if the valves and fittings of the tank are functioning properly, for any signs of looseness or damage. Ensure that the valves operate smoothly and reliably.
Insulation Layer Inspection: Check for any damage or detachment in the insulation layer of the storage tank. Repair or replace any damaged insulation materials to ensure effective insulation.
Cleaning and Waste Disposal: Regularly clean the interior of the tank to remove accumulated impurities and dirt. Regularly dispose of waste to prevent contaminants and sediments in liquid oxygen from damaging the tank.
Safety Equipment Inspection: Check the safety equipment around the storage tank, such as fire separation zones and alarm systems, to ensure they are functioning properly.
Record and Document Management: Document the results of each inspection and maintenance, including the inspection date, contents, issues found, and corrective measures. Establish comprehensive management records and documents for tracking and managing the tank's operational status.
Note that inspections and maintenance of liquid oxygen tanks should be conducted by trained personnel and in accordance with relevant specifications and standards. Ensure safety during maintenance and operations, and consult experts for accurate guidance.

The maintenance and protection of liquid argon tank accessories are crucial for ensuring the normal operation and extending the service life of the tank. The following are general methods for maintaining and protecting liquid argon tank accessories:
Valve Maintenance: Regularly inspect and maintain valves within the tank accessories, including intake valves, exhaust valves, and safety valves. Ensure the valves operate smoothly and reliably with no leaks or jamming. Regularly lubricate the valves and clean any debris and dirt on them.
Pressure Relief Device Maintenance: The pressure relief devices (such as safety valves) in the accessories of liquid argon storage tanks are critical components for ensuring the safety of the internal pressure within the tank. Regularly inspect and test the operational status of the pressure relief devices to ensure proper functioning. Clean and repair as needed.
Sensor and gauge maintenance: Sensors and gauges in the liquid argon storage tank accessories are used for monitoring and controlling parameters such as the tank's temperature and pressure. Regularly calibrate and inspect the accuracy and reliability of the sensors and gauges. Keep the sensors and gauges clean and in proper working condition.
Insulation Layer Protection: The insulation layer of liquid argon storage tank accessories is crucial for maintaining the low temperature state of liquid argon. Regularly inspect the integrity and insulation performance of the insulation layer, and repair or replace damaged insulation materials. Avoid mechanical damage or contamination to the insulation layer.
Cleaning and Anticorrosive Protection: Regularly clean the accessories of the tank, removing impurities and dirt from the surface. Periodically inspect and maintain the anticorrosive coating of the accessories to prevent corrosion and oxidation.
Regular Inspections and Maintenance: Conduct comprehensive inspections and maintenance of liquid argon cylinder accessories on a regular basis, including their appearance, fittings, and seals. Promptly detect and address any damages, leaks, or other issues with the accessories.
Record and Document Management: Record the results of each maintenance and service, including the maintenance date, service content, issues found, and measures taken. Establish comprehensive management records and documents for tracking and managing the operation of the attachments.
Note that maintenance and protection of liquid argon cylinder accessories should be performed by trained personnel, following relevant specifications and standards. Ensure safety during maintenance and operation, and consult experts for accurate guidance.
Our company attaches great importance to technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. 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 we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has jointly developed deep cryogenic container processing technology, utilizing the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement identification, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!