COMPRESSED GAS DEHYDRATOR, COMPRESSOR PLANT EQUIPPED WITH SUCH DEHYDRATOR, AND GAS DRYING METHOD Russian patent published in 2019 - IPC B01D53/26 B01D53/06 F04B39/16 F24F3/14 F24F3/153 F04C18/02 F04C23/00 

FIELD: gas industry.

SUBSTANCE: invention relates to a compressed gas dehydrator, a compressor unit equipped with such a dehydrator, and a gas drying method. Dehumidifier is equipped with reservoir with drying zone 7 and regeneration zone 8 inside; by regeneration zone 8 inlet 13, which is also the drying gas feed inlet, and the regeneration zone outlet 15; by inlet 16 of drying zone 7 and outlet 19 of drying zone 7, which is also output of dehydrator and from which dried compressed gas can be withdrawn into downstream consumer network 21; rotating drum with reservoir filled with regenerated drying agent; drive means for rotating the above drum so that the drying agent moves successively through drying zone 7 and regeneration zone 8; connecting pipeline 14, which connects said outlet 15 of regeneration zone 8 with inlet 16 of drying zone 7; cooler 17 and condensate separator 18 built into connection pipeline 14; at least one intermediate zone 9a, which, when viewed in the rotational direction R of the drum, is located between regeneration zone 8 and drying zone 7 and is provided with separate inlet 24a and an outlet which is common or connected to outlet 15 of regeneration zone 8; by discharge branch pipe 22a, which branches from outlet 19 of drying zone 7 and is connected to above mentioned separate input 24a of intermediate zone 9a; means for forming an intermediate flow from drying zone 7 through the discharge branch pipe 22b to intermediate zone 9b, wherein the dryer is designed so that the entire flow of the dried gas fed into the drying agent, first, is directed through regeneration zone 8 before flow through drying zone 7, said above means are made of supercharger 25 in said discharge branch pipe 22b, as well as in that it is designed with one intermediate cooling zone 9b and one intermediate regeneration zone 9a, in which, according to one of versions, intermediate cooling zone 9b at end 8'' of regeneration zone 8 is provided with intermediate flow of gas withdrawn from outlet 19 of drying zone 7 and directed by means of above-specified injector 25 without heating to inlet 24b of said intermediate cooling zone 9b.

EFFECT: invention is aimed at achievement of deep drying of drying agent and prevention of occurrence of peak dew point at system start-up.

21 cl, 10 dwg