Method and device for supplying steam to the drying section in a papermaking machine
AssigneeStora Enso AB
InventorTorsten Svenland
Life of this patent
Estimating the term…
Abstract
A method for increasing the drying capacity of a steam group (6) in a drying section of a pulp or paper machine. According to the method, a main steam flow (3) having a first steam pressure is fed to the steam group (6), the main steam flow (3) is conducted to at least one thermocompressor (9), which is driven by motive steam (4) having a second steam pressure, which is driven by motive steam (4) having a second steam pressure, which is higher than the first steam pressure, and the output steam (13) of said at least one thermocompressor (9) is fed to the steam group (6), the steam pressure of the steam that is fed to the steam group (6) being higher than the first steam pressure.
Claims20
A method for increasing the drying capacity of a steam group in a drying section of a pulp or paper machine,
- feeding a main steam flow having a first steam pressure to the steam group,
- conducting the main steam flow to at least one thermocompressor, the at least one thermocompressor being driven by motive steam having a second steam pressure which is higher than the first steam pressure, and
- feeding the output steam of the at least one thermocompressor to the steam group,
- the steam pressure of the output steam that is fed to the steam group being higher than the first steam pressure.
A device for increasing the drying capacity of a steam group in a drying section of a papermaking machine, comprising:
- a main steam pipe for supplying a main steam flow to the steam group,
- at least one thermocompressor having an inlet for steam with a first steam pressure, an inlet for motive steam with a second steam pressure and an outlet for output steam, which outlet is connected to the steam group,
- a steam pipe for supplying motive steam to the motive steam inlet of the at least one thermocompressor,
- a branch, between the main steam pipe and the inlet of the at least one thermocompressor for steam with a first steam pressure, for conducting the main steam flow to the at least one thermocompressor.
Dependencies are inferred from the claim text.