Efficient quenching equipment

The efficient quenching equipment comprises a cold air distribution device and a quenching device, the quenching device comprises a quenching device cylinder, the interior of the quenching device cylinder is sequentially divided into a heat flow area, a quenching area and a collecting area from top to bottom, and the cold air distribution device comprises a first-stage air inlet main pipe, a second-stage air inlet main pipe and a third-stage air inlet main pipe. The primary air inlet main pipe is simultaneously connected to the middle parts of the two arc-shaped secondary air inlet main pipes; each second-stage air inlet main pipe is provided with two air outlet pipes, the distance between each air outlet pipe and the middle part of the second-stage air inlet main pipe is equal, and each air outlet pipe is connected with a third-stage air inlet main pipe; the cold air distribution device further comprises a plurality of cold air inlet pipes, the inner ends of the cold air inlet pipes are evenly distributed in