Hydrogen gas path system capable of recovering waste gas

The hydrogen gas path system comprises a test kettle, a booster pump, an air compressor, a vacuum pump, a nitrogen cylinder and a hydrogen cylinder, the test kettle is provided with a ventilation pipeline and a gas outlet pipeline, the booster pump is provided with a pressurization pipeline communicated with the ventilation pipeline, and the air compressor, the vacuum pump, the nitrogen cylinder and the hydrogen cylinder are all connected with the pressurization pipeline; a collecting kettle is arranged at the outlet end of the gas outlet pipeline and provided with a gas exhaust pipeline. According to the hydrogen gas path system capable of recycling the waste gas, hydrogen can be collected, and waste of resources is reduced. 本申请涉及一种可回收废气的氢气气路系统，包括试验釜、增压泵、空压机、真空泵、氮气瓶以及氢气瓶，试验釜分别设有通气管线和出气管线，增压泵设有连通于通气管线的增压管线，空压机、真空泵、氮气瓶以及氢气瓶均与增压管线相连接；出气管线的出口端设置有收集釜，收集釜设有排气管线。本申请的一种可回收废气的氢气气路系统能够收集氢气，减小资源的浪费。