GAS EXHAUST SET Russian patent published in 2022 - IPC E21F7/00 

FIELD: distributing gases.

SUBSTANCE: invention relates to fan-based degassing sets positioned at open sites at the mouth of degassing boreholes on the surface of mining allotments of coal mines, and can be used to pump the methane-air mixture from the mine. Gas exhaust set comprises a tee, said tee having an inlet connected with the degassing borehole and two outlets. The first outlet of the tee is connected with the inlet of the gas purification unit with a condensate drain apparatus. The output of the gas purification unit is connected with the inlet of the primary fan. The outlet of the main fan is connected with the inlet of the gas exhaust unit with a disposal stand. The second outlet of the tee is connected with the inlet of the additional gas purification unit with a condensate drain apparatus. The outlet of the additional gas purification unit is connected with the inlet of the backup fan. The outlet of the backup fan is connected with the inlet of the additional gas exhaust unit with a disposal stand. The backup fan is configured to be activated at deactivation of the main fan. The gas purification unit and the gas exhaust unit are configured to be deactivated at deactivation of the main fan.

EFFECT: higher safety and easier maintenance of the set.

5 cl, 3 dwg