Recirculation type hydrogen ejector

The invention discloses a recirculation type hydrogen ejector which is composed of a main electromagnetic valve set, a bypass electromagnetic valve set, a hydrogen spraying body, a high-pressure sensor, a medium-pressure sensor and an ejector assembly and is good in sealing performance and stable in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JI GUANGCUN, ZHANG JIANMING, FENG QI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a recirculation type hydrogen ejector which is composed of a main electromagnetic valve set, a bypass electromagnetic valve set, a hydrogen spraying body, a high-pressure sensor, a medium-pressure sensor and an ejector assembly and is good in sealing performance and stable in flow. Stable operation under low, medium and high power can be achieved according to the load of the fuel cell system, specifically, the main electromagnetic valve set and the ejector assembly work under the low power, and the main electromagnetic valve set, the bypass electromagnetic valve set and the ejector assembly work at the same time under the medium and high power. Meanwhile, the structure has the function of purging water vapor accumulated in the medium-pressure chamber and the low-pressure chamber of the hydrogen spraying body, and water accumulation is prevented. 本发明公开了一种再循环式氢喷射器,由主电磁阀组、旁通电磁阀组、氢喷体、高压传感器、中压传感器、引射器组件构成,密封性能好,同时流量稳定。可以根据燃料电池系统的负载实现低、中高功率下的稳定运行,具体表现为在低功率时主电磁阀组和引射器组件工作,而在中高功率下,主电磁阀组、旁通电磁阀组、引