VENTILATION DEVICE USED FOR ACCUMULATOR Russian patent published in 2008 - IPC H01M2/12 

FIELD: heating systems, ventilation systems.

SUBSTANCE: ventilation device connected on one side to internal volume of accumulator or accumulator, and on the opposite side - to outdoor environment, consists of a body with a chamber and holes, a disk-shaped explosion-hazard element made from porous acid-resistant material, and combined reflector and electrolyte aerosol catcher made in the form of a cylinder-shaped labyrinth. The latter has at least two labyrinth chambers located one above the other and formed by narrow labyrinth areas, and separated at least with two wide labyrinth areas tightly attached to the ventilation device body. In wide labyrinth areas are made two cuts forming together with ventilation device body two clearances for gas passage; at that cuts in neighboring wide areas restricting one labyrinth chamber are located at an angle π/2 to each other, and maximum width of clearances formed by cuts is 0.1-0.3 of radius of the wide labyrinth areas; ratio of radii of wide and narrow labyrinth areas is 2-4, and ratio of heights of wide and narrow labyrinth areas is 0.5-2.0.

EFFECT: improving device reliability and explosion safety protection from electrolyte condensate.

2 dwg