技術摘要(英)
A gas recovery device includes a chamber at least one recovery assembly. The chamber has an accommodating space, an air inlet and an air outlet. The air inlet and the air outlet are connected to the accommodating space. The at least one recovery assembly includes a flow guide, a baffle, and at least one filter. The flow guide is located in the accommodating space and has a compression channel, an inlet and an outlet. The inlet and the outlet communicate with the compression channel, and the compression channel communicates with the air inlet through the inlet, and the compression channel communicates with the air outlet through the outlet. The caliber of the inlet is larger than the caliber of the outlet. The baffle is located in the accommodating space. The baffle is separated from the baffle and blocked at the outlet of the flow guide. At least one filter is located in the accommodating space, and the filter is located on one side of the baffle.