The system shown in the sketch achieves a suction pressure of 1 mbar.
The temperature of the available cooling water determines
which pressure can be reached in the first mixing condenser.
In this example, two ejector stages have been series-connected to achieve
a suction pressure of 1 mbar with the lowest possible use of motive flow.
Two further ejector stages compress the non-condensable components
of the suction flow from the first mixing condenser up to atmospheric pressure.
The interconnected mixing condenser condenses the motive steam
of the preceding ejector.
Advantage:
- Maintenance- and trouble-free operation
Disadvantages:
- Mixing of process- and cooling water flows
Options:
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