(19)
(11) EP 1 950 516 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.01.2012 Bulletin 2012/03

(43) Date of publication A2:
30.07.2008 Bulletin 2008/31

(21) Application number: 08150319.5

(22) Date of filing: 16.01.2008
(51) International Patent Classification (IPC): 
F26B 21/12(2006.01)
 F26B 25/22(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated Extension States:
AL BA MK RS

(30) Priority: 26.01.2007 SE 0700200

(71) Applicant: Valutec AB
931 27 Skelleftea (SE)

(72) Inventors:
  • Söderlund, Kenneth
    931 51, SKELLEFTEÅ (SE)
  • Larsson, Robert
    931 46, SKELLEFTEÅ (SE)

(74) Representative: Johansson Webjörn, Ingmari 
Albihns.Zacco Valhallavägen 117 Box 5581
114 85 Stockholm
114 85 Stockholm (SE)

   


(54) A method for adapting the requirement of drying air in wood driers


(57) The invention concerns a method for adapting the requirement for drying air in a wood dryer, whereby wood in the form of a package is placed into a drying chamber that is closed to the surrounding atmosphere and in which is maintained a water-containing atmosphere with a wet temperature, a dry temperature and the psychrometric difference that is associated with this by means of forced drying air that is caused to pass through the wood. In order to optimise the consumption of electricity during the drying process, the air speed of the forced drying air is regulated depending on the current water content of the wood or by a recorded reduction in the release of water from the wood, whereby monitoring of the current water content or the appearance of a reduced release of water takes place by measurements that are carried out during the drying process.







Search report