The O2 vent line requires the most demanding line management. Please study this section carefully.
The oxygen vent line carries around 0,25Nm³/h of oxygen out of the electrolyser. Additional
components are water vapour and a maximum concentration of 3%vol hydrogen if the production
rate is above 60%. Under normal conditions with production rates between 60% and 100%,
the flammable limit will never be reached. The water vapour sums up to around 10-25 ml/h.
Never obstruct the output of the O
2
vent line – do not place any check valves,
or other system components which might block or close the line. Instead, use
KOH resistant check valves with a maximum cracking pressure of 0,02 barg
downstream of every vent outlet to avoid damages of the devices.
Ensure that the condensed water is not allowed to accumulate in the vent
pipe and can drain out of the line safely.
Regularly check the vent line for a build-up of obstructions.
Please contact the Enapter customer support team for questions regarding
the vent line setup. Make sure that no obstacles including the purged water
and vapour are blocking the line. It must always be at atmospheric pressure.
If necessary, use a water trap and heater to avoid pressure from building up.
Please be aware that when larger hydrogen systems are created by putting
together several modules, the piping downstream may have to be sized
accordingly. It is the operator’s responsibility to ensure adequately sized
piping is selected, which does not limit the air flow. The operator must
ensure that the outlet satisfies all relevant local rules and regulation, in
terms of noise emission, risk assessments, maintenance, and all other
relevant areas.
Attention!
The total pressure inside the line must never exceed 0.5 bar. If a
backpressure inside the line builds up, the device will go into error mode
and get permanently damaged.
Enapter is not responsible for any damage caused to the device from
mismanaged piping arrangements.
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