EP1300643B1 - Movable enclosure for drying wood - Google Patents

Movable enclosure for drying wood Download PDF

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Publication number
EP1300643B1
EP1300643B1 EP02366007A EP02366007A EP1300643B1 EP 1300643 B1 EP1300643 B1 EP 1300643B1 EP 02366007 A EP02366007 A EP 02366007A EP 02366007 A EP02366007 A EP 02366007A EP 1300643 B1 EP1300643 B1 EP 1300643B1
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EP
European Patent Office
Prior art keywords
air
drying
technical module
enclosure
batch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP02366007A
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German (de)
French (fr)
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EP1300643A2 (en
EP1300643A3 (en
Inventor
Claude Bertrand
Marc Bertrand
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Sa Des 3a
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Sa Des 3a
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/066—Movable chambers, e.g. collapsible, demountable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/16—Wood, e.g. lumber, timber

Definitions

  • the present invention relates to a device for the pre-drying and / or drying of various materials, for example pieces of wood.
  • the pre-drying and drying operations of the wood are traditionally carried out in the open air and therefore require a very long duration.
  • This problem is solved by the invention by directing the air leaving the drying sheath to one of the walls of the enclosure which serves as a return air.
  • the invention which consists of a device for the pre-drying and / or drying of a load of objects, for example a loading of pieces of wood, of the type comprising a drying chamber in which is placed the loading of objects to be dried, a technical module comprising at least air drying means and ventilation and at least one air intake and at least one drying air outlet, the module technique and the drying chamber being placed in the same chamber which comprises an air blowing duct connected at the output of the technical module which is partially inflatable and deformable so that, under the effect of the pressure of the air from the technical module, it adapts to the conformation of a surface of the load, characterized in that the sheath is partially rigid to direct the air coming out of a plurality of eyes to one of the walls of the enclosure used as air return.
  • the air outlet (s) are placed on the top of said module and the deformable sheath extends horizontally and longitudinally above the load in order to pressure and sealing on the upper surface of the load while the vertical walls of the enclosure serve as a return air.
  • a drying device for the sake of simplification comprises in a chamber (2) a drying chamber (3) in which is installed the load (4) of material to be dried and a module technical (5).
  • the first constraints of the invention are dimensional constraints ie height, length and maximum width not to exceed and to remain below those imposed by road and / or rail transport standards.
  • the first difficulty to solve is to realize in a volume of dimensions imposed air flow, the most regular possible between and around the objects to be dried, while maintaining the greatest capacity possible with respect to said objects to be dried.
  • the simplest optimal form of the enclosure (2) is the parallelepipedal shape, although not mandatory.
  • the enclosure (2) can for example be made from the structure of a refrigerated trailer, it can also be specially designed for the drying destination according to the features of the present patent application, it may or may not include wheels to be directly mobile or to be placed on a mobile platform.
  • the best possible arrangement for an air-blowing duct (11) connected at the outlet (7) of the technical module is the longitudinal arrangement in order to distribute the air as regularly as possible along the stacks of planks (8).
  • the border (17) is pivotally mounted with elastic return so that said rigid face can be retracted during loading and automatically return to its inclined position according to which the flexible wall applies to seal, its optimal inclination ⁇ is then between 40 and 60 °.
  • the sheath (11) is provided as close as possible to one of the side faces of the enclosure to reduce the pressure losses, it extends over the entire length of the enclosure, and is connected in a sealed manner at the air outlet (s) (7) of the technical module.
  • the drying air after emerging from the sheath 11, circulates between the boards or other objects, passes through the enclosure and is taken up by the air vents (6) of the technical module disposed at the bottom thereof.
  • the cell (1) is provided with one or more movable pivots or rails on its two longer sides to allow long frontal loads and the location of the technical module,
  • thermodynamic unit that can allow the rise in temperature (for example 50 ° C) by one or more electrical resistances; the maintenance of the said temperature being ensured by recycling energy and put by the compressor condenser dehumidification.
  • Temperature and hygrometry are managed by a hygrostat and thermostat type regulator, their probes are positioned in the cell,
  • Said probes placed regularly and judiciously along the length of the cell and allow the homogeneity of the air in the enclosure by means of one or more laminar flow and variable speed turbines to overcome the disadvantages of the length of the cell .
  • the dehydrator of the technical module consists of a refrigeration compressor, an evaporator-type exchanger made of stainless materials, a reduced exchange surface (for example: size of the exchanger length 600 mm 400 mm width 30 mm thick).
  • This said exchanger being equipped with high performance stainless tubes, provided with stainless blades on their periphery to prevent any corrosion to acids (for example tannic acid).
  • the dehydrator is equipped with a second exchanger for the subcooling of the refrigerating gases, which makes it possible to reuse the energy emitted by the compressor in recycling having, for example, a closed U shape and respecting the various condensation temperatures as well as the airflows at least one tangential turbine for the dehydrator, in order to minimize the bulk, the weight, the noise while having a high air flow.
  • This air flow being managed at its outlet from the dehydrator by a set of flexible sheaths to avoid crushing (example: textile sheath, plastic memory), the air can be distributed regularly on each turbine variable speed and laminar flow located at the top of the cell along the rigid wall of the sheath (wall made in one or more sections).
  • the temperature which can exceed the set point due to condensation is managed by a thermostat located in a control controlling a turbine injecting external air at overpressure into the dehydrator at the humidity trap exchanger, the additional air volume injected or expanded being managed him by one or more flaps opening on their own weight in proportion to the pressure exerted on their blades to desaturate the atmosphere of the enclosure if necessary for example for the treatment of delicate woods.
  • the walls of the enclosure are made of insulating material (for example: polyurethane foam and plastic panels).
  • the assembly can be maintained with metal reinforcements and stabilizing crutches on a platform (as a non-limiting example the cell will have dimensions of the order of 2.5 m for the width and for the height of 2.6 m and for the length of 13.50 m) these dimensions do not take into account a possible undercarriage.
  • the device according to the invention is particularly intended for the pre-drying and drying of ligneous materials (such as for example: textile wood, etc.) or others.
  • ligneous materials such as for example: textile wood, etc.
  • the provision on request is fast, (for example: an hour for example) as the production sites natural disasters, floods or any other conditions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

The mobile drier consists of a drying chamber (3) to receive the material to be dried and a technical module with an air drier and ventilator between an intake and an outlet. The technical module and drying chamber are assembled in a single housing which has a duct (11) connected to the output of the technical module, the duct being partly deformable and inflatable by the pressure of air (21) passing through it, and partly rigid to direct the air through outlets (12) towards one of the chamber's walls, which are made from an insulating material.

Description

La présente invention concerne un dispositif pour le pré-séchage et/ou le séchage de divers matériaux, par exemple des pièces de bois.The present invention relates to a device for the pre-drying and / or drying of various materials, for example pieces of wood.

Les opérations de pré-séchage et de séchage du bois sont traditionnellement effectuées à l'air libre et nécessitent par conséquent une durée très longue.The pre-drying and drying operations of the wood are traditionally carried out in the open air and therefore require a very long duration.

Elles peuvent être réalisées sur site et sous abris ou bien réalisées par des sous-traitants sur d'autres sites, ce qui implique de régler des problèmes de transport, gestion de stockage, manutention et concurrence (en raison du monopole des possesseurs d'installation de séchage en gros volumes fixés).They can be realized on site and under shelter or carried out by subcontractors on other sites, which implies to solve problems of transport, management of storage, handling and competition (because of the monopoly of the owners of installation drying in large volumes fixed).

Pour pallier ces inconvénients certains utilisateurs, ayant des besoins annuels de séchage, ont investi dans des enceintes de séchage fixes et non démontables mais leurs principaux inconvénients sont une durée très longue de rentabilité et la nécessité d'une exploitation continue.To overcome these disadvantages some users, having annual drying needs, have invested in fixed and non-removable drying cabinets but their main drawbacks are a very long period of profitability and the need for continuous operation.

L'art antérieur connaît le document D1 : DE 299 00 870 U1 qui décrit un dispositif pour le séchage d'un chargement d'objets avec un module technique de séchage placé dans l'enceinte de séchage et comportant une gaine de soufflage d'air en partie gonflable et déformable et en partie rigide, la conformation de la gaine est conçue pour éviter toute circulation d'air autour du chargement.The prior art knows the document D 1 : DE 299 00 870 U1 which describes a device for drying a load of objects with a drying technical module placed in the drying chamber and comprising an air blow duct partially inflatable and deformable and partly rigid, the conformation of the sheath is designed to prevent any air circulation around the load.

L'art antérieur connaît également le document D2 : US-A-5 526 583 qui réalise la circulation d'air autour du chargement au moyen de ventilateurs.The prior art also knows the document D 2 : US-A-5,526,583 which circulates the air around the load by means of fans.

Ce problème est résolu par l'invention en dirigeant l'air sortant de la gaine de séchage vers une des parois de l'enceinte qui sert de renvoi d'air.This problem is solved by the invention by directing the air leaving the drying sheath to one of the walls of the enclosure which serves as a return air.

Ce but est atteint par l'invention qui consiste en un dispositif pour le pré-séchage et/ou le séchage d'un chargement d'objets, par exemple un chargement de pièces de bois, du type comportant une chambre de séchage dans laquelle est placé le chargement d'objets à sécher, un module technique comportant au moins des moyens de séchage d'air et de ventilation ainsi qu'au moins une entrée de reprise d'air et au moins une sortie d'air de séchage, le module technique et la chambre de séchage étant placés dans la même enceinte qui comporte une gaine de soufflage d'air raccordée en sortie du module technique qui est pour partie gonflable et déformable pour que, sous l'effet de la pression de l'air issu du module technique, elle s'adapte à la conformation d'une surface du chargement, caractérisé en ce que la gaine est pour partie rigide pour diriger l'air sortant d'une pluralité d'ouies vers une des parois de l'enceinte utilisée comme renvoi d'air.This object is achieved by the invention which consists of a device for the pre-drying and / or drying of a load of objects, for example a loading of pieces of wood, of the type comprising a drying chamber in which is placed the loading of objects to be dried, a technical module comprising at least air drying means and ventilation and at least one air intake and at least one drying air outlet, the module technique and the drying chamber being placed in the same chamber which comprises an air blowing duct connected at the output of the technical module which is partially inflatable and deformable so that, under the effect of the pressure of the air from the technical module, it adapts to the conformation of a surface of the load, characterized in that the sheath is partially rigid to direct the air coming out of a plurality of eyes to one of the walls of the enclosure used as air return.

De façon préférentielle, le module technique est placé à une extrémité de la chambre de séchage et dans la même enceinte, de manière que pendant une opération de séchage , l'air de séchage issu de la ou des sorties d'air soit :

  • o conduit par une gaine déformable venant faire pression et étanchéité sur une surface du chargement,
  • o distribué en flux réguliers répartis le long dudit chargement,
  • o renvoyé par une paroi de l'enceinte vers le chargement de manière à le traverser ou à le parcourir puis,
  • o renvoyé à nouveau par une autre paroi de l'enceinte pour pouvoir être repris par la ou les reprises d'air du module technique en l'absence de toute gaine ou canalisation.
Preferably, the technical module is placed at one end of the drying chamber and in the same enclosure, so that during a drying operation, the drying air from the outlet (s) is:
  • o driven by a deformable sheath coming to pressure and sealing on a surface of the load,
  • o distributed in regular flows distributed along said loading,
  • o returned by a wall of the enclosure to the load so as to cross or to browse it then,
  • o Returned again by another wall of the enclosure to be taken up by the air or the resumes of the technical module in the absence of any sheath or pipe.

Selon une variante préférée de mise en oeuvre la ou les entrées d'air sont placées en bas et latéralement sur le module technique, la ou les sorties d'air sont placées sur le dessus dudit module et la gaine déformable s'étend horizontalement et longitudinalement au dessus du chargement de manière à venir faire pression et étanchéité sur la surface supérieure du chargement tandis que les parois verticales de l'enceinte servent de renvoi d'air.According to a preferred embodiment of the or the air inlets are placed at the bottom and laterally on the technical module, the air outlet (s) are placed on the top of said module and the deformable sheath extends horizontally and longitudinally above the load in order to pressure and sealing on the upper surface of the load while the vertical walls of the enclosure serve as a return air.

On comprendra mieux l'invention à l'aide de la description ci-après faite en référence aux figures annexées suivantes :

  • figure 1 : vue schématique d'ensemble d'une chambre de séchage selon l'invention,
  • figure 2 : coupe verticale transversale d'une chambre de la figure 1,
  • figure 3 : coupe verticale longitudinale d'une cellule selon l'invention avec la chambre de séchage proprement dite selon la figure 1 et le module technique de séchage disposé à une extrémité.
The invention will be better understood from the following description given with reference to the following appended figures:
  • figure 1 : schematic overview of a drying chamber according to the invention,
  • figure 2 : vertical cross section of a chamber of the figure 1 ,
  • figure 3 longitudinal vertical section of a cell according to the invention with the drying chamber itself according to the figure 1 and the drying technical module disposed at one end.

Un dispositif de séchage selon l'invention, appelé cellule (1) par souci de simplification comporte dans une enceinte (2) une chambre de séchage (3) proprement dite dans laquelle est installée la charge (4) de matériau à sécher et un module technique (5).A drying device according to the invention, called cell (1) for the sake of simplification comprises in a chamber (2) a drying chamber (3) in which is installed the load (4) of material to be dried and a module technical (5).

L'objectif premier étant de réaliser un dispositif transportable sur route et/ou sur voie ferrée, les premières contraintes de l'invention sont des contraintes dimensionnelles à savoir hauteur, longueur et largeur maximales à ne pas dépasser et devant rester inférieures à celles imposées par des normes de transport routier et/ou ferroviaire.The primary objective being to provide a transportable device on road and / or railway, the first constraints of the invention are dimensional constraints ie height, length and maximum width not to exceed and to remain below those imposed by road and / or rail transport standards.

La première difficulté à résoudre est donc de réaliser dans un volume de dimensions imposées une circulation d'air, la plus régulière possible, entre et autour des objets à sécher, tout en conservant la plus grande capacité possible vis à vis desdits objets à sécher.The first difficulty to solve is to realize in a volume of dimensions imposed air flow, the most regular possible between and around the objects to be dried, while maintaining the greatest capacity possible with respect to said objects to be dried.

La forme optimale la plus simple de l'enceinte (2) est la forme parallélépipédique, bien que non obligatoire.The simplest optimal form of the enclosure (2) is the parallelepipedal shape, although not mandatory.

L'enceinte (2) peut par exemple être réalisée à partir de la structure d'une remorque frigorifique, elle peut également être spécialement conçue pour la destination de séchage selon les caractéristiques de la présente demande de brevet, elle peut comporter ou non des roues de façon à être directement mobile ou à être placée sur une plateforme mobile.The enclosure (2) can for example be made from the structure of a refrigerated trailer, it can also be specially designed for the drying destination according to the features of the present patent application, it may or may not include wheels to be directly mobile or to be placed on a mobile platform.

Afin de gagner le plus possible en capacité de séchage l'idée inventive a consisté à concevoir un circuit de circulation nécessitant le moins possible de canaux ou tubulures de circulation.In order to gain as much as possible in drying capacity the inventive idea was to design a circulation circuit requiring the least possible channels or circulation pipes.

Pour atteindre la solution, l'idée a ensuite consisté à placer le module technique (5) à l'intérieur même de l'enceinte (2) et à utiliser les parois de ladite enceinte comme renvois d'air de séchage.To reach the solution, the idea was then to place the technical module (5) inside the enclosure (2) and to use the walls of said enclosure as drying air referrals.

Cela a conduit à prévoir dans l'enceinte une chambre de séchage (3) proprement dite avec en extrémité un module technique contenant le ou les échangeurs-déshydrateur d'air.This led to provide in the chamber a drying chamber (3) itself with the end of a technical module containing the air-exchanger or dehydrator.

Afin d'optimiser encore la disposition relative chambre-module technique et gagner en longueur de stockage on prévoit de placer une ou des reprises d'air humide (6) sur le côté du module technique et de placer une ou des sorties d'air (7) sec et réchauffé sur le dessus dudit module.In order to further optimize the relative arrangement of the chamber-module technique and to gain in storage length, it is planned to place one or more moist air recesses (6) on the side of the technical module and to place one or more air outlets ( 7) dry and warmed on top of said module.

Les objets ou matériau à sécher présentés à titre d'exemple sur les figures sont des planches de bois (8) séparées par des plots (9).The objects or material to be dried shown by way of example in the figures are wooden planks (8) separated by studs (9).

La meilleure disposition possible pour une gaine (11) de soufflage d'air raccordée en sortie (7) du module technique est la disposition longitudinale afin de répartir l'air le plus régulièrement possible le long des empilements de planches (8).The best possible arrangement for an air-blowing duct (11) connected at the outlet (7) of the technical module is the longitudinal arrangement in order to distribute the air as regularly as possible along the stacks of planks (8).

A ce stade un nouveau problème devait être résolu.At this point a new problem had to be solved.

En effet, s'il paraît simple de répartir les flux d'air (10) régulièrement le long de la gaine (11) au moyen d'ouies (12) calculables par l'homme du métier, il fallait trouver le moyen de forcer les flux (10) à glisser le long d'une des parois verticales(13) de l'enceinte et à s'infiltrer entre les planches (8), c'est à dire qu'il fallait trouver le moyen d'empêcher tout passage d'air entre la gaine (11) et la partie supérieure (14) du chargement.Indeed, if it seems simple to distribute the air flow (10) regularly along the sheath (11) by means of openings (12) computable by the skilled person, it was necessary to find the means to force the flows (10) to slide along one of the vertical walls (13) of the enclosure and to infiltrate between the boards (8), ie it was necessary to find the means to prevent any air passage between the sheath (11) and the upper part (14) of the load.

La solution à ce problème est de concevoir une gaine qui est à la fois :

  • gonflable et déformable pour que sous l'effet de la pression de l'air (15) issu du module technique, elle s'adapte à la conformation de la partie supérieure (14) du chargement et fasse étanchéité à l'air,
  • et rigide pour que les ouies dirigent les flux d'air (10) vers une des parois de l'enceinte par exemple la paroi verticale (13) qui fait alors office de réflecteur.
The solution to this problem is to design a sheath that is both:
  • inflatable and deformable so that under the effect of the air pressure (15) from the technical module, it adapts to the conformation of the upper part (14) of the load and makes airtightness,
  • and rigid so that the louvers direct the air flows (10) to one of the walls of the enclosure, for example the vertical wall (13) which then acts as a reflector.

Conformément à l'invention la gaine (11) comporte

  • une face en matériau rigide (15) comportant une pluralité d'ouies (12) et fixée en sous face du toit de l'enceinte par une de ses bordures (17) et inclinée d'un angle prédéterminé α par rapport au dit toit (16)
  • une paroi souple (20) fixée d'une part sur l'autre bordure (18) de la paroi rigide et, d'autre part, en sous face du toit et à une distance prédéterminée (19) de la bordure (17) de la face rigide.
According to the invention the sheath (11) comprises
  • a rigid material face (15) having a plurality of louvres (12) and fixed on the underside of the enclosure roof by one of its edges (17) and inclined at a predetermined angle α with respect to said roof ( 16)
  • a flexible wall (20) fixed on the one hand to the other edge (18) of the rigid wall and, on the other hand, to the underside of the roof and at a predetermined distance (19) from the edge (17) of the rigid face.

Préférentiellement la bordure (17) est montée pivotante avec retour élastique de façon à ce que ladite face rigide puisse être escamotée pendant le chargement et revenir automatiquement à sa position inclinée selon laquelle la paroi souple s'applique pour faire étanchéité, son inclinaison optimale α est alors comprise entre 40 et 60°.Preferably the border (17) is pivotally mounted with elastic return so that said rigid face can be retracted during loading and automatically return to its inclined position according to which the flexible wall applies to seal, its optimal inclination α is then between 40 and 60 °.

Préférentiellement, la gaine (11) est prévue le plus près possible d'une des faces latérales de l'enceinte pour diminuer les pertes de charge, elle s'étend sur toute la longueur de l'enceinte, et elle est raccordée de façon étanche à la ou aux sorties d'air (7) du module technique.Preferably, the sheath (11) is provided as close as possible to one of the side faces of the enclosure to reduce the pressure losses, it extends over the entire length of the enclosure, and is connected in a sealed manner at the air outlet (s) (7) of the technical module.

L'air de séchage, après sa sortie de la gaine 11, circule entre les planches ou autres objets, traverse l'enceinte et il est repris par les reprises d'air (6) du module technique disposées en bas de celui-ci.The drying air, after emerging from the sheath 11, circulates between the boards or other objects, passes through the enclosure and is taken up by the air vents (6) of the technical module disposed at the bottom thereof.

On décrit encore à titre d'exemple divers aménagements préférentiels pouvant être remplacés par des équivalents techniques :Various examples of preferential arrangements that can be replaced by technical equivalents are still described as examples:

La cellule (1) est munie d'une ou plusieurs façades mobiles sur pivots ou sur rails sur ses deux plus grands côtés afin de permettre les chargements frontaux de grande longueur et l'emplacement du module technique,The cell (1) is provided with one or more movable pivots or rails on its two longer sides to allow long frontal loads and the location of the technical module,

Ce module technique permet l'extraction de l'humidité et il est pourvu d'une unité thermo-dynamique pouvant permettre la montée en température (à titre d'exemple 50°C) par une ou plusieurs résistances électriques ; le maintien de la dite température étant assuré par recyclage de l'énergie et mise par le condenseur du compresseur en déshumidification.This technical module allows the extraction of moisture and it is provided with a thermodynamic unit that can allow the rise in temperature (for example 50 ° C) by one or more electrical resistances; the maintenance of the said temperature being ensured by recycling energy and put by the compressor condenser dehumidification.

La température et l'hygrométrie sont gérées par un régulateur de type hygrostat et thermostat, leurs sondes sont positionnées dans la cellule,Temperature and hygrometry are managed by a hygrostat and thermostat type regulator, their probes are positioned in the cell,

Lesdites sondes placées régulièrement et judicieusement sur la longueur de la cellule et permettent l'homogénéabilité de l'air dans l'enceinte au moyen d'une ou plusieurs turbines à flux laminaires et à vitesse variable pour pallier aux inconvénients de la longueur de la cellule.Said probes placed regularly and judiciously along the length of the cell and allow the homogeneity of the air in the enclosure by means of one or more laminar flow and variable speed turbines to overcome the disadvantages of the length of the cell .

Selon un mode particulier de réalisation, le déshydrateur du module technique est composé d'un compresseur frigorifique, d'un échangeur type évaporateur en matériaux inoxydables, d'une surface d'échange réduit (à titre d'exemple : dimension de l'échangeur longueur 600 mm 400 mm largeur 30 mm d'épaisseur).According to a particular embodiment, the dehydrator of the technical module consists of a refrigeration compressor, an evaporator-type exchanger made of stainless materials, a reduced exchange surface (for example: size of the exchanger length 600 mm 400 mm width 30 mm thick).

Ce dit échangeur étant équipé de tubes inoxydables à haut rendement, munis de lames inoxydables sur leurs pourtours afin d'éviter toute corrosion aux acides (à titre d'exemple l'acide tanique).This said exchanger being equipped with high performance stainless tubes, provided with stainless blades on their periphery to prevent any corrosion to acids (for example tannic acid).

Le déshydrateur étant équipé d'un deuxième échangeur pour le sous refroidissement des gaz frigorifiques ce qui permet de réutiliser l'énergie émise par le compresseur en recyclage ayant, par exemple, une forme en U fermé et respectant les différentes températures de condensation ainsi que les débits d'air d'au moins une turbine tangentielle pour le déshydrateur, afin de réduire au maximum l'encombrement, le poids, le bruit tout en ayant un débit d'air important.The dehydrator is equipped with a second exchanger for the subcooling of the refrigerating gases, which makes it possible to reuse the energy emitted by the compressor in recycling having, for example, a closed U shape and respecting the various condensation temperatures as well as the airflows at least one tangential turbine for the dehydrator, in order to minimize the bulk, the weight, the noise while having a high air flow.

Ce débit d'air étant géré à sa sortie du déshydrateur par un ensemble de gaines souples afin d'éviter tout écrasement (exemple : gaine textile, plastique à mémoire), l'air peut être ainsi diffusé régulièrement sur chaque turbine à vitesse variable et à flux laminaire situées en point haut de la cellule le long de la paroi rigide de la gaine (paroi réalisée en un ou plusieurs tronçons).This air flow being managed at its outlet from the dehydrator by a set of flexible sheaths to avoid crushing (example: textile sheath, plastic memory), the air can be distributed regularly on each turbine variable speed and laminar flow located at the top of the cell along the rigid wall of the sheath (wall made in one or more sections).

La température pouvant dépasser la consigne du fait de la condensation est gérée par un thermostat situé en reprise commandant une turbine injectant de l'air extérieur en surpression dans le déshydrateur au niveau de l'échangeur piège à humidité, le surcroît de volume d'air injecté ou dilaté étant géré lui par un ou plusieurs volets s'ouvrant sur leur propre poids en proportion de la pression exercée sur leurs lames pour désaturer l'atmosphère de l'enceinte si nécessaire par exemple pour le traitement de bois délicats.The temperature which can exceed the set point due to condensation is managed by a thermostat located in a control controlling a turbine injecting external air at overpressure into the dehydrator at the humidity trap exchanger, the additional air volume injected or expanded being managed him by one or more flaps opening on their own weight in proportion to the pressure exerted on their blades to desaturate the atmosphere of the enclosure if necessary for example for the treatment of delicate woods.

Les parois de l'enceinte sont réalisées en matière isolante (à titre d'exemple : mousse polyuréthane et panneaux plastiques).The walls of the enclosure are made of insulating material (for example: polyurethane foam and plastic panels).

L'ensemble peut être maintenu avec des armatures métalliques et des béquilles stabilisatrices sur une plate-forme (à titre d'exemple non limitatif la cellule aura des dimensions de l'ordre de 2.5 m pour la largeur et pour la hauteur de 2.6 m et pour la longueur de 13.50 m) ces dimensions ne tiennent pas compte d'un éventuel train de roulement.The assembly can be maintained with metal reinforcements and stabilizing crutches on a platform (as a non-limiting example the cell will have dimensions of the order of 2.5 m for the width and for the height of 2.6 m and for the length of 13.50 m) these dimensions do not take into account a possible undercarriage.

Le dispositif selon l'invention est particulièrement destiné au pré-séchage et séchage de matériaux ligneux (comme par exemple : le bois textile, etc) ou autres.The device according to the invention is particularly intended for the pre-drying and drying of ligneous materials (such as for example: textile wood, etc.) or others.

La mise à disposition sur simple demande est rapide, (à titre d'exemple : une heure par exemple) comme sur les sites de productions catastrophes naturelles, les inondations ou toutes autres conditions.The provision on request is fast, (for example: an hour for example) as the production sites natural disasters, floods or any other conditions.

Ce type de sécheur mobile et déplaçable n'existant pas à ce jour permet une utilisation dans des demandes ponctuelles et problématiques, et directement sur site.This type of mobile and movable dryer does not exist today allows use in specific and problematic requests, and directly on site.

Claims (9)

  1. Device for the pre-drying and/or drying a batch of objects, such as a batch of pieces of wood, of a type comprising a drying chamber (3) in which the batch of objects to be dried is placed, a technical module (5) comprising at least means of air drying and ventilation and at least one air recycling intake (6) and at least one drying air outlet (7), the technical module (5) and the drying chamber (3) being located in the same enclosure (2), which comprises a duct (11) for an air flow connected to the outlet (7) of the technical module which is partly inflatable and deformable, such that, under the effect of the air pressure (21) derived from the technical module, it adapts to the shape of a batch surface, characterised in that the duct is partly rigid for directing the air issuing from a plurality of inlets towards one of the walls of the enclosure used for air recycling.
  2. Device according to Claim 1, characterised in that the air intake(s) (6) are located at the bottom and laterally on the technical module (5), the air outlet(s) (7) are located on the top of the said module and the deformable duct extends horizontally and longitudinally above the batch in such a way as to cause pressure and impose a seal on the upper surface (14) of the batch, while the vertical walls (13) and (13') of the enclosure serve to recycle air.
  3. Device according to either of Claims 1 and 2, characterised in that the deformable duct (11) comprises:
    o one face of rigid material (15) comprising a plurality of inlets (12) and fixed in the under face of the roof of the enclosure by one of its borders (17) and inclined at a predetermined angle in relation to the said roof (16).
    o a flexible wall (20) fixed, on the one hand, on the other border (18) of the rigid wall and, on the other hand, on the under face of the roof and at a predetermined distance (19) from the border (17) of the rigid face.
  4. Device according to Claim 3, characterised in that the border (17) is mounted so as to pivot with an elastic return such that the said rigid face can be retracted during loading and revert automatically to its inclined position α, according to which the flexible wall is applied onto the batch in order to establish the sealing effect.
  5. Device according to either of Claims 3 and 4, characterised in that α is between 40 and 60°.
  6. Device according to any one of Claims 1 to 5, characterised in that the technical module comprises at least one thermodynamic unit with a dehydrator and at least one laminar flow turbine.
  7. Device according to Claim 6, characterised in that the dehydrator of the technical module is composed of a refrigerating compressor, an evaporator-type exchanger made of rust-resistant materials and a small- sized exchange surface.
  8. Device according to Claim 7, characterised in that the dehydrator is equipped with a second exchanger for sub-cooling the refrigeration gases, allowing reuse of the energy emitted by the compressor by way of recycling.
  9. Device according to any one of Claims 1 to 8, characterised in that the enclosure can be assembled with metallic fittings and stabilizing legs on a platform.
EP02366007A 2001-10-08 2002-10-07 Movable enclosure for drying wood Expired - Lifetime EP1300643B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0112906A FR2830481B3 (en) 2001-10-08 2001-10-08 MOBILE WOOD DRYING CELL
FR0112906 2001-10-08

Publications (3)

Publication Number Publication Date
EP1300643A2 EP1300643A2 (en) 2003-04-09
EP1300643A3 EP1300643A3 (en) 2006-06-21
EP1300643B1 true EP1300643B1 (en) 2008-03-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02366007A Expired - Lifetime EP1300643B1 (en) 2001-10-08 2002-10-07 Movable enclosure for drying wood

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EP (1) EP1300643B1 (en)
AT (1) ATE389156T1 (en)
DE (1) DE60225519D1 (en)
FR (1) FR2830481B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405432A (en) * 2018-09-17 2019-03-01 阜南县东方柳编工艺品有限公司 A kind of efficiently dehumidifying plank drying equipment

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2911393B1 (en) * 2007-01-16 2009-04-03 3A Soc Responsabilite Limitee MOBILE DRYING UNIT OF FINISHING PRODUCTS
FR2915272B1 (en) * 2007-04-18 2012-12-28 Groupe Solu Allience DEVICE FOR VENTILATION OF CELL.
FR2919921A1 (en) * 2007-08-06 2009-02-13 Groupe Solu Allience Sarl Artificial pre-drying device for wood, has thermodynamic technical modules each positioned at floor/ceiling in enclosure and connected to exchanger positioned outside enclosure to use calorific exchange capacity of exterior air
CN103292589B (en) * 2013-06-03 2015-04-01 上海工程技术大学 Air flow guide and ventilation device for large hot air drying room
FR3023363B1 (en) * 2014-07-04 2016-07-01 Clauger RAPID COLD TUNNEL OF FOODSTUFFS LOADED ON PALLETS
CN107091562B (en) * 2017-03-27 2023-04-07 贵州大学 Drying equipment for mechanical workpiece
CN107398955A (en) * 2017-08-15 2017-11-28 广西河池市宜州梦若天蓝信息科技有限公司 A kind of waddy slicer
CN110171044B (en) * 2019-06-20 2021-04-13 南京林业大学 Preparation method of functional wood base material with porous structure
CN111207577A (en) * 2020-01-10 2020-05-29 王海山 High-efficient type log drying equipment with prevent function of ftractureing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196554A (en) * 1959-06-30 1965-07-27 Fan Air Systems Inc Apparatus comprising baffles and inflatable air foils for drying lumber
US3299532A (en) * 1964-05-13 1967-01-24 Vaughn W Melikian Mobile dehydrator
IT1239240B (en) * 1990-03-13 1993-09-28 Progetti PLANT FOR DRYING MOLDS FOR SANITARY APPLIANCES
US5526583A (en) * 1995-01-30 1996-06-18 Hull; Dwayne E. Portable dry kiln for drying or treating lumber
DE19951634A1 (en) * 1998-12-29 2000-07-06 Wolf Systembau Gmbh & Co Kg Drying device for products containing moisture, e.g. wood, has all system components required for operation during drying accommodated on or in shaft between base plate and platform
DE29900870U1 (en) * 1999-01-20 1999-04-15 Rud. Otto Meyer GmbH & Co. KG, 22047 Hamburg Device for directing a fluid flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109405432A (en) * 2018-09-17 2019-03-01 阜南县东方柳编工艺品有限公司 A kind of efficiently dehumidifying plank drying equipment

Also Published As

Publication number Publication date
DE60225519D1 (en) 2008-04-24
FR2830481B3 (en) 2003-11-21
ATE389156T1 (en) 2008-03-15
FR2830481A1 (en) 2003-04-11
EP1300643A2 (en) 2003-04-09
EP1300643A3 (en) 2006-06-21

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