SYSTEM OF RAW GAS GATHERING Russian patent published in 2016 - IPC C25C3/22 

FIELD: machine building.

SUBSTANCE: system contains drain channels, each of them is connected by flow with an appropriate aluminium electrolyser out of the said aluminium electrolysers, and is made with a possibility to transport the raw gas from the inlet of the appropriate drain channel of the electrolyser to the outlet of the appropriate drain channel, and the first common gathering channel connected by flow with the said drain channels at the outlets of the appropriate drain channels, wherein the first common gathering channel is made with a possibility to transport the raw gas from the outlets of the drain channels to a gas cleaning unit, the first and second heat exchangers, located in the first and the second drain channels, wherein the first heat exchanger is made with a possibility to create hydraulic resistance exceeding the hydraulic resistance of the second heat exchanger, and for heat transfer from the first drained flow of the raw gas to the heat transfer medium in the first heat exchanger, and the second drain channel is connected with the said common gathering channel upstream the first drain channel relatively to the raw gas flow in the gathering channel.

EFFECT: reduced necessity in the regulation of the volume flows in the appropriate drain channels using dampers, and reduced power necessary to transport the raw gas through the system.

12 cl, 4 dwg