AIR CLEANING DEVICE Russian patent published in 2016 - IPC F02C7/47 F02C7/52 

FIELD: treatment plants.

SUBSTANCE: invention relates to cleaning air supplied from environment atmosphere and its preparation for feeding gas turbine engine compressor. Air cleaning device includes air receiving chamber, in which combined filtration system units are arranged in tiers including moisture separators and coarse filters, precipitation retaining shields, cycle air heating system, including the looped-back discharge pipeline with branch pipes and holes. System of cycle air heating is equipped with additional pipeline equipped with discharge branch pipes with holes, and branch pipes of looped-back discharge pipeline comprise vertical section with holes; herewith combined system moisture separators are arranged separately from coarse filters in air receiving chamber. Note here that extra pipe may be made of u-shape to set it at the level of precipitation retaining shields. Extra pipeline and its branches are tapering in direction of air flow proportionally to value of pressure in them.

EFFECT: invention provides higher efficiency of cycle air heating system and prevents formation of frost and ice on surfaces of filters at extreme operating conditions.

1 cl, 3 dwg