Silencer of waste heat power generation main steam drain pipeline

The utility model relates to the technical field of pipeline silencers, in particular to a silencer of a waste heat power generation main steam drain pipeline, and adopts the technical scheme that the silencer comprises a flange plate, a water inlet pipe, a flaring cover, a shell, a water outlet pipe, an air outlet pipe, a first grid frame, sound insulation cotton, a blocking cloth bag and a second grid frame, a shell is installed on the side, away from the water inlet pipe, of the flaring cover, a first grid frame is installed on one side in the shell, three blocking cloth bags are installed in the shell, and a water outlet pipe is installed at the position, on the side opposite to the first grid frame and the three blocking cloth bags, of the bottom of the shell in an embedded mode; an air outlet pipe is embedded in the side, away from the flaring cover, of the shell. The pipeline drainage device has the advantages that liquid and gas are separated and discharged by slowing down the flow speed of the liquid