The invention discloses a vehicle-mounted hydrogen supply system and a fuel cell vehicle. According to the vehicle-mounted hydrogen supply system, a hydrogen storage module is provided with a hydrogen storage device; the pressure reducing module is provided with a pressure reducing valve, the pressure reducing valve communicates with the hydrogen storage device through a high-pressure hydrogen supply pipeline, and a first pressure detection device is arranged on the high-pressure hydrogen supply pipeline; the fuel cell module is communicated with the pressure reducing valve through a medium-low pressure hydrogen supply pipeline, and a second pressure detection device is arranged on the medium-low pressure hydrogen supply pipeline; and the pressure relief module is communicated with the middle-low pressure hydrogen supply pipeline through a pressure relief branch pipe. The pressure relief module is communicated with the middle-low pressure hydrogen supply pipeline, so that when the downstream pressure of the pressure reducing valve of the hydrogen supply system is higher than a set pressure value, namely the pressure in the middle-low pressure hydrogen supply pipeline exceeds the set pressure value, hydrogen in the middle-low pressure hydrogen supply pipeline can be discharged through the pressure relief module; and the pressure in the medium-low pressure hydrogen supply pipeline is reduced to a set pressure value, so that the fuel cell vehicle can be normally started in a low-temperature environment or after being static for a long time.
本申请公开了一种车载供氢系统和燃料电池车,车载供氢系统包括:储氢模块设有储氢装置;减压模块设有减压阀,减压阀与储氢装置通过高压供氢管道连通,高压氢管道上设有第一压力检测装置;燃料电池模块,与减压阀通过中低压供氢管道连通,中低压供氢管道上设有第二压力检测装置;以及,泄压模块,与中低压供氢管道通过泄压支管连通。通过使泄压模块与中低压供氢管道连通,在供氢系统的减压阀下游压力偏高超过设定压力值时,即中低压供氢管道内的压力超过设定压力值时,能够通过泄压模块将中低压供氢管道内的氢气排出,使中低压供氢管道内的压力降低至设定压力值,从而能够确保燃料电池车在低温环境下或长时间静止后能够正常启动。
Vehicle-mounted hydrogen supply system and fuel cell vehicle
一种车载供氢系统和燃料电池车
2022-11-08
Patent
Electronic Resource
Chinese
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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