Small-bore jet dissipative muffler

Abstract

The invention discloses a small-bore jet dissipative muffler. The small-bore jet dissipative muffler comprises a base, wherein a small-bore jet pipe and a sound insulating and absorbing barrel are vertically arranged on the base at a certain interval from inside to outside respectively; the sound insulating and absorbing barrel is partitioned into an inner barrel and an outer barrel which are sleeved together at a certain interval; an annular space between the inner and outer barrels is filled with a pearlite interlayer; the bottom surface of the small-bore jet pipe is open, and is communicated with a steam pipeline drain pipe; the top end of the small-bore jet pipe is enclosed; 20 rows of small bores are uniformly distributed vertically in the circumferential wall of the small-bore jet pipe at certain intervals from top to bottom along the vertical direction; the bore diameters of the small bores are 2 millimeters; the height of the small-bore jet pipe is 150 millimeters; a lower bed layer plate, a dissipation layer and an upper bed layer plate are horizontally welded in sequence in the inner barrel above the small-bore jet pipe from bottom to top; both the upper and lower bed layer plates are provided with through holes; the dissipation layer is constructed by laminating stainless steel wire nets being 1 millimeter in thicknesses and 1 mm<2> in porosities.

Description

technical field [0001] The invention relates to a muffler, in particular to a small-hole injection dissipation type muffler used for starting drainage and discharging on the main steam pipeline of a steam turbine. Background technique [0002] In the iron and steel industry, in the system where the steam turbine is used to drive the air compressor, the medium-pressure steam used for the operation of the steam turbine is transported through the steam pipeline. There is often a long section of the steam pipeline from the temperature and pressure reduction valve of the combined heat and power boiler to the oxygen production steam turbine. distance. Different numbers of drainage points are designed along the line to prevent water accumulation in the steam pipeline. The drainage at the end of the pipeline close to the steam turbine generally adopts a structure combining steam turbine start-up drainage and normal operation drainage. The start-up drain is used for steam discharge ...

AI Technical Summary

Problems solved by technology

However, the current steam drainage is not designed with a muffler device, and the noise pollution is serious

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