As we all know, hydrogen refueling stations are usually composed of high-pressure hydrogen storage systems, compressors, hydrogen delivery systems, safety equipment, and control systems. As the core component of the hydrogen refueling station, the high-pressure hydrogen storage system is a typical pressure vessel and belongs to the category of special equipment. Its storage pressure can reach 45MPa, or even 95MPa, because of the particularity of its storage medium, it is also the component with the highest safety risk in the hydrogen refueling station. Therefore, the use, regular inspection and personnel management of the high-pressure hydrogen storage system in the hydrogen refueling station are particularly important.
Registration of the use of high-pressure hydrogen storage systems
It is the first step in the construction of a compliant hydrogen refueling station
At present, the special equipment in the hydrogen refueling station is mainly high-pressure hydrogen storage tank and its accessories, and the pressure gauge and safety valve are used as accessories of high-pressure hydrogen storage tank to ensure the safety of high-pressure hydrogen storage system. In order to improve the safe operation level of the high-pressure hydrogen storage system, it is necessary to prepare the business license, special equipment use registration form, product certificate and other important documents for use registration within 30 days before and after it is put into use, so as to strengthen the use and management of the high-pressure hydrogen storage system.
Periodic inspection of high-pressure hydrogen storage systems
It is the guarantee of the safety and stability of the hydrogen refueling station
Regular inspection of the high-pressure hydrogen storage system is an important measure to detect defects as soon as possible, eliminate hidden dangers of accidents, and ensure the safe operation of hydrogen refueling stations. Periodic inspections of high-pressure hydrogen storage tanks are generally carried outAppearance macroscopic inspection, wall thickness measurement, tank ultrasonic testing, acoustic emission and other testing, the main purpose of which is to:
Macroscopic examination
Observe the appearance of the high-pressure hydrogen storage system to ensure that there are no visible deformations, dents, cracks, or other damage to the surface.
Wall thickness determination
During the detection process, the thickness of the wall of the high-pressure hydrogen storage system was calculated by measuring the propagation time, amplitude and frequency of ultrasonic waves in the wall of the high-pressure hydrogen storage system. According to the wall thickness, judge whether the high-pressure hydrogen storage system has corrosion, damage or other defects that affect the safe use.
Ultrasonic inspection of tanks
During the detection process, the ultrasonic emitter emits a high-frequency ultrasonic signal into the high-pressure hydrogen storage system, which propagates and reflects back inside. The ultrasonic receiver receives the reflected ultrasonic signal and converts it into an electrical signal. The data processing unit analyzes these electrical signals and calculates the internal defects and damages within the high-pressure hydrogen storage system.
Acoustic emission
The sensor receives the sound waves generated inside the high-pressure hydrogen storage system and converts them into electrical signals. After amplification and processing, it is transferred to a computer for further analysis. Based on the characteristics of the sound waves, such as frequency, amplitude and duration, the defects and damage inside the high-pressure hydrogen storage system are determined.
on the Internet.
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The pressure gauge and safety valve are common safety equipment of high-pressure hydrogen storage system, which are calibrated and calibrated by special inspection agencies every six months and every year respectively, which is an important part of ensuring the safe and reliable operation of high-pressure hydrogen storage system.
on the Internet.
Qualified operations staff
It is the cornerstone of the healthy operation of hydrogen refueling stations
As a qualified operator, in addition to being familiar with the safety rules and regulations and operating procedures of hydrogen refueling stations, and mastering the safe operation skills of this position, gas cylinder filling is also a basic skill that operators must master. You can sign up for training through a third-party training institution, and you can obtain the qualification of gas cylinder filling after the assessment.
In addition, the ability to deal with emergencies at hydrogen refueling stations is also an important embodiment of qualified operators. The scope and extent of the impact of the accident can be effectively reduced by establishing an emergency plan, and regular emergency drills can improve the safety awareness of operators, further improve the ability to deal with emergencies, and lay a solid foundation for the safe operation of hydrogen refueling stations.
The above is the basic content related to the safety of hydrogen refueling stations, what else do you want to know about the operation of hydrogen refueling stations, the use of special equipment, supervision and inspection, etc., welcome to enter the special workshop of hydrogen refueling stations in January!
Workshop registration
Hydrogen partners:
Tehi Hydrogen Energy Testing will be held inFrom January 17th to January 18th, the "Experience Sharing Workshop on Operation, Maintenance and Safety Management of Hydrogen Supply Stations" was held。The workshop will invite the first batch of senior engineers, registered safety engineers, and practical experts engaged in hydrogen energy testing and evaluation in China to discuss the issues of concern to everyone2 days of professional training, answers and communication.
(Detailed course schedule).
How to register
Pay attention to Baijiahao's "Tehi Hydrogen Energy Testing".
Reply"Registration".
You can register according to the background prompts.