In the hydrogen fuel cell vehicle industry chain, the on-board hydrogen storage system is regarded as the "heart" of the vehicle, and the hydrogen storage cylinder valve is an important hub connecting the hydrogen storage cylinder and the power system, playing a key role in gas control and safety protection. With the development of the hydrogen energy industry, this segmented product is upgrading from traditional valves to system level core equipment.
1、 From basic control to system core
The technical requirements for on-board hydrogen storage valves are much higher than those for conventional industrial valves. During the inflation phase, it is necessary to achieve safe inflation and prevent backflow under high pressure conditions of 35MPA-70MPa; In the gas supply stage, it is necessary to transport hydrogen stably as required, and reduce the high-pressure hydrogen to below 1MPa through the pressure relief device, which requires high Pressure control accuracy.
Security protection is equally crucial. The valve is usually integrated with TPRD thermal pressure relief device, which can quickly relieve pressure in case of abnormal temperature to prevent explosion risk. At the same time, it is equipped with Pressure protection and flow limiting structure. Due to the easy permeability of hydrogen, the product also needs to use specialized sealing materials to ensure long-term sealing reliability.
With the intelligent development of the whole vehicle, the hydrogen storage valve also gradually has the ability to monitor data, and feedback the system status in real time through temperature and Pressure sensors. Some high-end products also integrate precision filtration structures to remove hydrogen impurities and protect fuel cell electrodes.
In addition, under the condition of limited vehicle space, valves also need to be highly integrated and have performance such as vibration resistance and corrosion resistance, while improving overall reliability through lightweight materials.
2、 The localization process continues to accelerate
In the past, the market for hydrogen storage valves in vehicles was dominated by foreign brands for a long time, and domestic enterprises relied on imported supplies. In recent years, with the development of the hydrogen energy industry and the increasing demand for self-reliance, domestic valves have gradually achieved technological breakthroughs.
Data shows that the localization rate of domestic vehicle mounted hydrogen storage valves will be about 20% -30% in 2022, and has increased to over 50% by 2023. Through cooperation with hydrogen storage system enterprises and research institutions, a development model of "independent research and development+industry collaboration" has gradually been formed in China.
After vehicle verification, domestic valves have gradually gained market recognition in terms of reliability and stability, and can meet the needs of most application scenarios. Meanwhile, domestic products are priced at about half of imported products, playing an important role in reducing the cost of hydrogen storage systems.
3、 Technology Trends and Industry Opportunities
With the expansion of the hydrogen fuel cell vehicle market, in vehicle hydrogen storage valve technology will further develop towards integration and intelligence. Future products will strengthen condition monitoring and leak warning, and be deeply linked with the vehicle system to improve safety and operational efficiency.
At the same time, industry safety standards will also become stricter, gradually shifting from passive protection to active safety management. With the development of liquid hydrogen technology, valve standards for liquid hydrogen operating conditions may gradually be established.
From the perspective of the industrial landscape, the global hydrogen energy market will gradually move towards the integration of technical standards and supply chains. Domestic enterprises need to continuously improve in technology research and development and international certification to enhance their global competitiveness.
4、 The transformation direction of traditional valve enterprises
Hydrogen valves are essentially an upgraded application of traditional valve technology in new scenarios. The long-term accumulation of sealing technology, pressure resistant design, and reliability experience provides a foundation for traditional valve enterprises to enter this field.
However, in the face of high hydrogen pressure, high safety requirements and integration trend, enterprises still need to continue to make breakthroughs in material adaptation, Pressure control accuracy and system reliability to achieve the upgrade from "usable" to "easy to use".
Under the promotion of the "dual carbon" goal, the development prospects of the hydrogen energy industry are broad. For valve companies, actively expanding into the hydrogen energy field not only helps promote the localization process of the industrial chain, but also opens up new growth opportunities for the company itself.
