WO2025162717 - TISSUE PAPER DRYING SYSTEM
National phase entry is expected:
Publication Number
WO/2025/162717
Publication Date
07.08.2025
International Application No.
PCT/EP2025/050851
International Filing Date
15.01.2025
Title **
[English]
TISSUE PAPER DRYING SYSTEM
[French]
SYSTÈME DE SÉCHAGE DE PAPIER OUATÉ
Applicants **
VALMET AB
Inventors
ARDRIZZI, Claudio
DELLA NEGRA, Paolo
JOHNSSON, Ulf
Priority Data
2430033-7
29.01.2024
SE
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2092 | |
| EPO | Filing, Examination, Granting | 8369 | |
| Japan | Filing, Examination, Granting | 2170 | |
| South Korea | Filing, Examination, Granting | 2051 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,422
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Abstract[English]
A ssue paper drying system and a method for operang such a ssue drying system The ssue drying system comprises a yankee drying secon (11), a separator tank (21), a heat pump system (31; 31'; 31'') and a steam recirculaon arrangement (41; 41'; 41''; 41'''). Exhaust air from a yankee hood of the yankee drying secon and/or from another hot air dryer device such as a TAD secon (111) is used as heat source in the heat pump system. Liquid water transferred out from a yankee cylinder of the yankee drying secon is transformed into steam in a heat sink side of the heat pump system and the steam is recirculated back for use in the yankee cylinder.[French]
L'invention concerne un système de séchage de papier ouaté et un procédé de fonctionnement d'un tel système de séchage de papier ouaté. Le système de séchage de papier ouaté comprend un sécheur Yankee (11), un réservoir séparateur (21), un système de thermopompe (31 ; 31′ ; 31″) et un dispositif de recirculation de la vapeur (41 ; 41′ ; 41″ ; 41“′). L'air d'échappement d'une hotte du sécheur Yankee et/ou d'un autre dispositif de séchage à air chaud, tel qu'un séchoir à air traversant (111), est utilisé comme source de chaleur dans le système de thermopompe. L'eau liquide transférée hors d'un cylindre Yankee de la section de séchage Yankee est transformée en vapeur dans un côté dissipateur thermique du système de thermopompe et la vapeur est remise en circulation pour être utilisée dans le cylindre Yankee.