DEPaper and paperboard machine
Water trap
In the press and wire section of the paper machine, the paper web is dewatered via suction rollers and boxes. The extracted liquid water, which is drawn away through pipes under vacuum, must be prevented from reaching the vacuum pump itself. To ensure this, water traps are built into the pipeline leading to the vacuum pump. The collected water is drained from the trap by a separate water pump.
Vacuum measurement with VEGABAR 52 or VEGABAR 54
Either VEGABAR 52 with large or VEGABAR 54 with small ceramic CERTEC® measuring cell is implemented for vacuum measurement in the pipe. The measured values are used to control the vacuum pumps, and thus ensure continuous removal of water from the paper web. The measuring diaphragm is largely protected from deposits due to the front-flush installation.
Level measurement with VEGAFLEX 61
The optimal solution for level measurement in the water trap is VEGAFLEX 61 which uses guided microwave technology. It operates unaffected by the vacuum and delivers reliable measurement data, even with a low level, for controlling the separate water pump.
» VEGABAR 52
» VEGABAR 54
» VEGAFLEX 61
finder