C5 separation device with low energy consumption and cost

The utility model discloses a C5 separation device with low energy consumption and cost, which comprises a separation tank, a first support block, an inlet, an exhaust port, a discharge port, a butt joint device and a limit mechanism, the butt joint device is arranged on the surface of the inlet, when the inlet needs to be in butt joint with a feed pipe, the feed pipe is attached to the surface of an inlet butt joint plate, and the limit mechanism is arranged on the feed pipe. Then a worker rotates a knob to enable a transmission gear to rotate, the transmission gear rotates to drive a fluted disc to rotate, the fluted disc drives a gear ring and simultaneously drives a duplicate gear to rotate, follow-up teeth rotate, the follow-up teeth drive a screw rod to rotate, an adjusting block slides along the surface of the screw rod due to rotation of the screw rod, the adjusting block drives a push rod to slide, and the push rod slides to push a clamping block; and when the clamping block is attached to the feedin