High-efficiency hydrogen recovery device

The utility model discloses a high-efficiency hydrogen recovery device which comprises a front buffer tank, a fan and a rear buffer tank which are sequentially arranged and communicated together through a pipeline, the top of the rear buffer tank is connected with a hydrogen analyzer, the bottom of the rear buffer tank is connected with a high-purity hydrogen supplementing pipeline, and the hydrogen analyzer is electrically connected with a system controller; during hydrogen recovery operation, industrial tail gas is collected into the front buffer tank through the tail gas collecting pipeline and conveyed into the rear buffer tank through operation of the fan; and then, the hydrogen analyzer analyzes the purity of the gas in the rear buffer tank, and the hydrogen regulating valve is controlled to be opened and closed through the system controller, so that stable-purity hydrogen is obtained. The hydrogen concentration adjusting device is ingenious in conception, the hydrogen concentration can be rapidly adjus