Pipeline protection device and drainage system

The utility model discloses a pipeline protection device and a drainage system, the pipeline protection device comprises a base, a filter screen and an anti-vortex piece, a drainage channel penetrates through the base, and the base is used for being installed at a drainage port of a water vat; the filter screen is installed on the base and located in the water tank, an anti-vortex piece is arranged on the side, away from the base, of the filter screen and can change the motion trail of water flow and separate and restrain rotating fluid, so that energy loss is reduced, the drainage efficiency is improved, meanwhile, the anti-vortex piece prevents vortex from being generated, pipeline vibration can be eliminated, and the drainage effect is improved. The noise is reduced, a relatively quiet working environment is provided for workers, pipeline vibration is eliminated, pipeline damage caused by pipeline vibration due to serious vortexes can be effectively avoided, in conclusion, the vortex preventing piece is ar