| 摘要 |
A method and an arrangement for utilizing energy of an apparatus for drying a fibre web. The drying apparatus comprises two endless bands (1, 2) that are impermeable to air and that have a good thermal conductivity. A fibre web (5) runs between the bands (1, 2) with at least one felt or wire (3, 4). The metal band in contact with the fibre web (5) is heated. Correspondingly, the metal band in contact with the felt is cooled with water contained in a water chamber (10). The cooling water used is conducted to a heat exchanger (25) that is used to heat water conducted to heat the process water in a papermaking or a board machine.
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