Language :
en
Revision :
005
Page :
5
Low-pressure water
refilling system
FNC
© 2012, Hoppecke Batterie Systeme GmbH, all rights reserved.
System Description
3.1
Waterfilling plugs
The plugs used to top up distilled water work
without any moving parts. The water is
pumped with a steady flow rate into the top-up
system and flows into the cells one after the
other. In the process, the air inside the cells
escapes through the vertical tube. As soon as
this tube gets submerged when the electrolyte
reaches the maximum level, air can no longer
escape and water intake is prevented.
The waterfilling plug is sealed off from the cell
with two O-rings so that air may escape
through the plug but not directly from the cell.
This is absolutely necessary for the cell to
work.
Figure 1: Waterfilling plugs
3.2
Flame arrestor
Hydrogen and oxygen formed while charging
are fed through the hose pipes to a central de-
gasification facility with flame arrestor and,
thus, released into the environment in a
controlled manner.
Figure 2: Flame arrestor
