Shanxian Chemical
SUPPLEMENTS
Valves For Hydrogen Service
On Valves for Hydrogen
1. Introduction
In today's world, the energy revolution is taking place, and hydrogen energy, with its clean and efficient characteristics, has gradually become the leader of future energy. And in many aspects of hydrogen energy application, the use of valves is crucial. Valves for hydrogen are related to the smooth flow of hydrogen energy and the stable operation of equipment. Therefore, they are discussed in detail to clarify the importance.
Second, the characteristics of valves for hydrogen
Hydrogen is light and active, and its molecules are small and easy to leak. Therefore, valves for hydrogen need to have extremely high sealing properties in order to prevent its leakage. And the interaction of hydrogen and metal, easy to cause hydrogen embrittlement phenomenon, damage the strength and toughness of the valve material. It is based on the selection of valve materials, and care must be taken to choose those with good resistance to hydrogen embrittlement, such as special alloy steel, etc., to ensure that the valve is used for a long time without fatigue.
Third, the design points of hydrogen valves
Its design should take into account the special properties of hydrogen. The structural design should be simple and smooth, reducing its flow resistance, so that when hydrogen flows through the valve, it is smooth and unobstructed, avoiding its turbulence and eddy current disturbances, in order to prevent energy loss and noise. The design of the sealing structure, in particular, needs to be delicate, or adopt multiple sealing methods, or use new sealing materials to ensure airtightness. And the opening and closing action of the valve should be precise and sensitive, and can quickly adjust the on-off and flow rate of hydrogen flow according to changes in working conditions.
Fourth, the manufacturing process of hydrogen valves
The excellent manufacturing process is the foundation of valve quality. The processing accuracy is strict, and the dimensional tolerances of each component of the valve must be controlled within a very small range to achieve the effect of close cooperation. The surface treatment cannot be ignored. After special treatment, the corrosion resistance and hydrogen embrittlement resistance of the material can be enhanced. During the manufacturing process, strict testing procedures, non-destructive testing, stress testing, etc. are readily available. Any defects are not allowed to flow into the market to ensure the high quality of the valve.
5. Application Scenarios of Hydrogen Valves
In the hydrogen energy industry chain, valves are widely used. In the hydrogen production process, such as water electrolysis hydrogen production equipment, valves control the input of raw materials and the output of product gas; in the field of hydrogen storage, the inlet and outlet valves of high-pressure hydrogen storage vessels ensure the safety of hydrogen storage; in hydrogen refueling stations, hydrogen refueling machine valves precisely control the amount and pressure of hydrogen refueling to serve the energy supply of hydrogen energy vehicles.
6. Conclusion
Hydrogen valves, although a small part of the hydrogen energy system, are the key to its success or failure. Only by continuously improving technology and improving the performance and quality of valves can we help the hydrogen energy industry thrive, make hydrogen energy shine on the energy stage, and contribute to the sustainable development of mankind.
1. Introduction
In today's world, the energy revolution is taking place, and hydrogen energy, with its clean and efficient characteristics, has gradually become the leader of future energy. And in many aspects of hydrogen energy application, the use of valves is crucial. Valves for hydrogen are related to the smooth flow of hydrogen energy and the stable operation of equipment. Therefore, they are discussed in detail to clarify the importance.
Second, the characteristics of valves for hydrogen
Hydrogen is light and active, and its molecules are small and easy to leak. Therefore, valves for hydrogen need to have extremely high sealing properties in order to prevent its leakage. And the interaction of hydrogen and metal, easy to cause hydrogen embrittlement phenomenon, damage the strength and toughness of the valve material. It is based on the selection of valve materials, and care must be taken to choose those with good resistance to hydrogen embrittlement, such as special alloy steel, etc., to ensure that the valve is used for a long time without fatigue.
Third, the design points of hydrogen valves
Its design should take into account the special properties of hydrogen. The structural design should be simple and smooth, reducing its flow resistance, so that when hydrogen flows through the valve, it is smooth and unobstructed, avoiding its turbulence and eddy current disturbances, in order to prevent energy loss and noise. The design of the sealing structure, in particular, needs to be delicate, or adopt multiple sealing methods, or use new sealing materials to ensure airtightness. And the opening and closing action of the valve should be precise and sensitive, and can quickly adjust the on-off and flow rate of hydrogen flow according to changes in working conditions.
Fourth, the manufacturing process of hydrogen valves
The excellent manufacturing process is the foundation of valve quality. The processing accuracy is strict, and the dimensional tolerances of each component of the valve must be controlled within a very small range to achieve the effect of close cooperation. The surface treatment cannot be ignored. After special treatment, the corrosion resistance and hydrogen embrittlement resistance of the material can be enhanced. During the manufacturing process, strict testing procedures, non-destructive testing, stress testing, etc. are readily available. Any defects are not allowed to flow into the market to ensure the high quality of the valve.
5. Application Scenarios of Hydrogen Valves
In the hydrogen energy industry chain, valves are widely used. In the hydrogen production process, such as water electrolysis hydrogen production equipment, valves control the input of raw materials and the output of product gas; in the field of hydrogen storage, the inlet and outlet valves of high-pressure hydrogen storage vessels ensure the safety of hydrogen storage; in hydrogen refueling stations, hydrogen refueling machine valves precisely control the amount and pressure of hydrogen refueling to serve the energy supply of hydrogen energy vehicles.
6. Conclusion
Hydrogen valves, although a small part of the hydrogen energy system, are the key to its success or failure. Only by continuously improving technology and improving the performance and quality of valves can we help the hydrogen energy industry thrive, make hydrogen energy shine on the energy stage, and contribute to the sustainable development of mankind.
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