EP4065789A1 - Système de ventilation forcée pour chambre à air, fermée par au moins un panneau, entre une paroi et une garniture - Google Patents

Système de ventilation forcée pour chambre à air, fermée par au moins un panneau, entre une paroi et une garniture

Info

Publication number
EP4065789A1
EP4065789A1 EP21707988.8A EP21707988A EP4065789A1 EP 4065789 A1 EP4065789 A1 EP 4065789A1 EP 21707988 A EP21707988 A EP 21707988A EP 4065789 A1 EP4065789 A1 EP 4065789A1
Authority
EP
European Patent Office
Prior art keywords
air
fan
section
air space
ventilation system
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.)
Pending
Application number
EP21707988.8A
Other languages
German (de)
English (en)
Inventor
Frank Jeske
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Ebm Papst St Georgen GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebm Papst St Georgen GmbH and Co KG filed Critical Ebm Papst St Georgen GmbH and Co KG
Publication of EP4065789A1 publication Critical patent/EP4065789A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B77/00—Kitchen cabinets
    • A47B77/04—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts
    • A47B77/08—Provision for particular uses of compartments or other parts ; Compartments moving up and down, revolving parts for incorporating apparatus operated by power, including water power; for incorporating apparatus for cooking, cooling, or laundry purposes

Definitions

  • the invention relates to a forced ventilation system for an air space between a wall and a piece of furniture, or in an air space which is closed off by at least one panel.
  • Such mold formation is due to the temperature difference of the wall surface of the respective wall compared to the room or furniture temperature, the resulting difference in relative humidity and the restricted or completely prevented air circulation in the area between the piece of furniture and the wall or wall surface.
  • the known solutions blow the mold spores out of the air space in an uncontrolled manner and distribute them in the room.
  • the invention is therefore based on the object of overcoming the aforementioned disadvantages and a forced ventilation system and an associated one Providing a method by which air humidity can be specifically removed from a closed air space and mold formation can be prevented.
  • a forced ventilation system for an air space closed off by at least one panel between a wall and a piece of furniture arranged in a room or room.
  • the forced ventilation system has at least one fan, a control device, at least one air duct and at least one ventilation opening and one suction opening, the ventilation opening and the suction opening each fluidically connecting the air space with the room.
  • the control device is connected to the at least one fan and is designed to control and regulate it.
  • the air duct can be formed by the wall and the piece of furniture or, for example, by a pipe.
  • the at least one fan and the at least one air duct are arranged in the air space.
  • An air duct connects a ventilation opening with a fan in terms of flow technology. Accordingly, at least one air duct and at least one ventilation opening are provided for each fan.
  • a labyrinth channel is provided which fluidically connects the air space with the space. An opening of the labyrinth channel, which is spaced apart from the air space in terms of malfunction, forms the suction opening.
  • the at least one fan divides the air space into a first section delimited by the air duct and a second section delimited by the wall and the piece of furniture and is designed to allow air to flow through the suction opening and the labyrinth duct into the second section of the air space and to generate by the air duct from the second section, so that air can be sucked in by the fan through the suction opening and blown out through the ventilation opening.
  • a cold wall or an outer wall of a building is preferably understood as a wall.
  • the air space can also extend, starting from the wall, into an area between the piece of furniture and a floor or floor.
  • the basic idea according to the invention is to be able to specifically generate and / or influence a “microclimate” in the air space in which a natural air flow is completely or at least almost prevented in order to remove moisture from the air space or at least not to add any moisture.
  • the air in the air gap or air space should be controlled by the forced ventilation system by air warmer than the air in the air space, which is supplied from the outside through the intake opening, as far as required or desired, and warm air can be removed. If targeted removal of moisture is not possible due to the ambient conditions, at least no new moisture should be fed into the air space or into the second section of the air space.
  • the fan is preferably a radial, an axial or a cross-flow fan or a cross-flow fan.
  • an axial fan it can be arranged tilted with respect to its axis of rotation relative to the wall and the outer walls of the piece of furniture, which results in an advantageous flow towards the second section of the air space.
  • the fan can be positioned directly adjacent to the wall, with one between the wall and the fan Outflow area is provided, which guides the air from the fan in the air space and enables an air flow.
  • the fan can be provided directly on the panel or one of the panels, which can also be a skirting board, and adjacent to the ventilation opening.
  • An advantageous variant provides that the air space is at least partially and preferably completely closed by the wall, the piece of furniture and the at least one panel, blocking an air flow, as is the case, for example, with built-in cupboards or kitchen elements, with skirting boards also being regarded as panels .
  • the forced ventilation system has a heating element.
  • the control device is connected to the heating element in terms of control technology and is designed to control and regulate it.
  • the heating element is arranged for additional heating of the air in the air space.
  • the heating element is fluidly arranged in the air space before or after the fan or in the fan. Depending on the arrangement of the heating element, it is in particular provided and designed to heat the air flowing into the second section or the air received in the second section and thereby to increase the absorption capacity for moisture present in the second section.
  • the heating element is preferably an electrical heating wire.
  • a heating cable, a power loss source or a Surface heating element can be used as a heating element.
  • a power loss source is understood to be a heating means whose primary purpose is not to heat the air space and which therefore emits thermal energy for heating the air space as power loss. If a heat source, such as a heating pipe, is already present in the air space or adjacent to it, this power loss source can be used integrally as a heating element, so that the heating element is a fluid line through which a heating fluid flows.
  • the heating element is arranged in the fan and is a heating wire.
  • the heating wire can be integrally formed by the motor windings of the electric motor of the fan, so the heating element can be formed integrally by an electric motor of the fan.
  • the heat or the heating power is generated, for example, by winding and / or electronic losses of the electric motor.
  • a predetermined power loss is generated on the electric motor in order to specifically heat the motor winding and to form the heating element.
  • the forced ventilation system further comprises a filter, which in terms of flow in the air space before or after the fan and is arranged in the th air flow generated by the fan, so that the air flow completely flows through the filter.
  • a filter also prevents or at least minimizes the sucking in or blowing out of dust.
  • the ventilation opening is provided in one or the at least one panel and is formed by a recess in the panel. In this case, the ventilation opening is preferably delimited by the panel and a surface of the wall or the piece of furniture facing the panel.
  • the ventilation opening can also be designed as a gap between the panel, which also includes skirting boards, and the piece of furniture, this preferably limited locally and not extending over the entire extent of the piece of furniture.
  • the ventilation opening is formed by a cladding element through which air can flow and which is received in or on the panel or forms the panel at least in sections.
  • a cladding element can be or have a ventilation grille, for example.
  • the ventilation opening is formed by a cladding element through which air can flow and which is received in or on the panel or at least partially forms the panel
  • the fan and the air duct are arranged integrally on or in the cladding element .
  • a unit of cladding element, air duct and fan can, for example, be used as an insert in the panel or skirting board.
  • a further advantageous embodiment of the invention provides that the or a ventilation opening in a Aperture is provided and the aperture forms a labyrinth channel and an opening of the labyrinth channel which is fluidically spaced from the air space forms the ventilation opening.
  • the forced ventilation system furthermore has a first sensor which is connected to the control device for signaling purposes and a second sensor which is connected to the control device for signaling purposes.
  • the first sensor is arranged outside the air space in the room or the room or in the first section of the air space or in the fan or on or in the ventilation opening and is designed to have a first temperature and / or a first relative humidity outside the second Measure section of airspace.
  • the second sensor is arranged in the second section of the air space and designed to measure a second temperature and / or a second relative humidity of the second section of the air space and preferably of the wall.
  • the temperature or humidity of the air space is understood in each case to be the temperature of the air taken up in the air space or, in relation to the second section, the temperature or humidity of the wall.
  • a sensor can have a plurality of measuring elements or can also be designed as a sensor arrangement comprising a plurality of sensors.
  • air guide elements are arranged in the air duct and / or in the second section of the air space.
  • These air guide elements can form, for example, a labyrinth or a channel extending like a labyrinth, through which the flow path of the air is influenced and the air is guided, for example, in a meandering manner through the air space.
  • the heating element can also be arranged in such a channel or labyrinth, so that it can heat the air along a larger distance or section.
  • the forced ventilation system has at least one and preferably exactly one fan and at least one and preferably exactly one air duct has approximately channel. Furthermore, the control device is designed to suck the fan and air in a first cycle through the ventilation opening into the second section of the air space and to control the air blowing out of the second section of the air space from the suction opening in a second cycle.
  • the warm air can take up additional moisture in the second section of the air space, the air with the taken up moisture being sucked off in the second cycle and expelled from the ventilation opening, whereby the moisture is removed from the air space.
  • the forced ventilation system has at least one and preferably exactly one fan, at least one and preferably exactly one air duct and the suction opening.
  • the control device is designed to control the fan and the heating element sucking or sucking air through the suction opening into the second section of the air space, heating the air and blowing the heated air out of the second section of the air space from the ventilation opening.
  • the fan is preferably at least one reversible axial fan or a device made up of two non-reversible fans, a first of which
  • Fan for sucking in and a second fan for blowing out are provided.
  • a reverse operation can also take place, in which the air is sucked into the air space through the ventilation opening and blown out through the suction opening.
  • the forced ventilation system has at least two and preferably exactly two fans, each with an air duct, which in terms of fluid flow via the second section of the air space in between. are bound.
  • the control device is designed to control the first and second fans and the heating element sucking air through the intake opening, heating the air and blowing out the heated air from the second section of the air space from the ventilation opening.
  • the direction of flow can be reversed by controlling the fans accordingly, so that the air is sucked in through the ventilation opening and blown out of the suction opening. It is particularly advantageous here if the air flow takes place in a first direction in a first cycle and in an opposite second direction in a second, time-shifted cycle.
  • a further aspect of the invention relates to a method for removing moisture from an air space between a wall and a piece of furniture, which is closed all the way by screens, with a forced ventilation system according to the invention, which has a first sensor connected to the control device for signaling purposes and a second sensor connected to the control device for signaling purposes.
  • the first sensor is arranged and formed outside the air space in the room, in the first section of the air space or in the fan or on or in the ventilation opening, a first temperature and a first relative humidity outside the second section of the airspace.
  • the second sensor is arranged in the second section of the air space and designed to measure a second temperature and a second relative humidity of the second section of the air space.
  • the first sensor detects or measures a first temperature value and a first relative humidity value and transmits these to the control device.
  • the second sensor detects or measures a second temperature value and a second relative humidity value and also transmits these to the control device.
  • the control device determines a temperature difference between the first and the second temperature value and an air humidity difference between the first and the second relative air humidity value.
  • the control device comprises a memory in which a maximum possible moisture saturation for air is stored for the first temperature value.
  • the control device controls the heating element and / or the at least one fan depending on the first temperature value and / or the second temperature value and / or the first humidity value and / or the second humidity value and / or the temperature difference and / or the air humidity difference and / or the maximum possible moisture saturation of the air at the first temperature value.
  • a correspondingly preferably warm and not yet completely moisture-saturated air is sucked in a first step with the at least one fan through the suction opening into the second section, where the air is further saturated with moisture due to the remaining moisture capacity, and the air is blown out of the second section through the ventilation opening by the at least one fan in a second step.
  • the first and second step can be carried out at different times or in parallel.
  • control is preferably carried out according to the following scheme, with heating only taking place if the respective variant provides a heating element:
  • the temperature and air humidity threshold values are each predefined and stored in the control device. Heating if AT> T Si , heating if T2 ⁇ Ts2 >
  • T Si can be, for example, 6 ° C., the case DT> T Si preferably occurring in winter.
  • T S 2 in particular a minimum permissible wall temperature in the interior of, for example, 12.6 ° C.
  • cpsi is, for example, 10% and cps2, for example 70%. If one or more conditions are met, a cycle is automatically started for a predetermined (first) period of time, in which is heated and / or ventilated.
  • control device can control the fans accordingly to no longer suck or blow air into the second air space.
  • the control device can also be arranged in a distributed manner, with, for example, a central unit processing data transmitted wirelessly from the sensors and controlling the at least one fan and the heating element in a wireless manner.
  • the first sensor can also be arranged outside the air space in the room in which the piece of furniture is located, so that the first sensor measures the room temperature and the relative humidity of the air Indoor air captured.
  • the control device also preferably provides a storage unit in which the water vapor capacity of air is stored for a predetermined temperature range of the air.
  • the control device is preferably also designed to determine from the relative humidity of the air and the water vapor capacity of the air whether the air can absorb additional moisture and what amount the air can absorb additional moisture.
  • a further advantageous development provides that an average value of the relative humidity is formed from previously recorded values or another threshold value is provided and a currently measured relative humidity of the room air or a course of the The measured relative humidity of the room air is compared with the mean value or the threshold value.
  • an open window or ventilation of the can thereby be used, for example Can be detected through an open window.
  • the method according to the invention can be carried out based on the detection of the open window.
  • an average value of the relative humidity of the room air is determined on a sliding basis over the last hour or the last day and the average value is compared with the current relative humidity of the room air. If there is a sudden drop in relative humidity over, for example, 5 minutes, an open window or ventilation that is currently taking place via a window is detected and the method for removing moisture is started as a result.
  • 1 shows an initial situation known in the prior art
  • 2 shows a first variant of the forced ventilation system
  • 3 shows a second variant of the forced ventilation system
  • 4 shows a third variant of the forced ventilation system
  • 5 shows a fourth variant of the forced ventilation system
  • 6a, 6b each show a variant of a diaphragm
  • 7a, 7b each show a variant of a skirting board
  • FIG. 1 shows the problem situation known in the prior art.
  • Pieces of furniture 2 are often placed directly on cold or damp walls 1, so that mold can form in an air gap or air space 3 between wall 1 and piece of furniture 2, since little or no air circulates through air space 3. Accordingly, a cold and mostly humid climate remains in the air space 3, whereby the formation of mold is additionally promoted.
  • the problem occurs to an even greater extent if the air space 3 is sealed off by panels 21 on the piece of furniture 2, so that air can no longer circulate in the air space 3. Ventilation openings 22 that may be present in the panels 21 also do not stimulate the air circulation in the air space 3, so that they have little or no effect.
  • a floor 1 ′, on which the piece of furniture 2 is arranged, is also essentially understood to be a wall and a skirting board is also understood to be a panel 21.
  • FIG. 2 shows a first variant of a forced ventilation system in which a fan 11 is provided in the air space 3 and divides it into a first section 31 and a second section 32.
  • the first section 31 is an area between the fan 11 and the ventilation opening 22, this being determined and limited here at the same time by the air duct 14.
  • the first and second sections 31, 32 are generally only fluidly connected via the fan 11.
  • the fan 11 can, for example, have a partition wall or be arranged in such a wall.
  • a first sensor 41 and a second sensor 42 are provided, the second sensor 42 in the second section 32 of the Air space 3 is arranged and is designed to measure the relative humidity and a temperature there .
  • the first sensor 41 is also designed to measure both the temperature and the relative humidity.
  • the heating element 12 is provided through which the air space 3 or in the second section 32 of the air space 3 existing air or air flowing in from the first section 31 can be heated.
  • the fan 11 which is designed here as an axial fan, air can be sucked in or blown out from outside the air space 3 through the ventilation opening 22. If the air in the second section 32 is saturated with moisture, air is sucked out of the second section 32 by the fan 11 and expelled from the ventilation opening 22, so that the moisture in the second section 32 of the air space is reduced.
  • a control device 13 is provided to which the sensor data is transmitted, which processes the sensor data and which then controls the fan 11 and the heating element 12.
  • the control device 13 can be arranged externally and wirelessly connected to the components. It is also possible that the control device 13 is formed on the fan or integrally with its fan electronics and is wired to the other components.
  • FIG. 3 the fan 11 is tilted with respect to the wall 1, as a result of which an advantageous flow against the wall 1 and an advantageous flow of air from the first section 31 into the second section 32 is made possible.
  • the heating element 12 can be formed integrally with the fan 11 or with its electric motor, which is shown schematically in FIG.
  • a radial fan can also be used.
  • the forced ventilation system provides for creating a draft, that is to say sucking in air through a first opening and expelling it through a second opening.
  • a second screen 21 ′ therefore has a suction opening 23 through which air can be sucked into the air space 3.
  • the variants shown in FIGS. 6a and 6b, in which a labyrinth channel 25 through which the air is sucked in, is formed in the second diaphragm 21 1 in particular, are advantageous here.
  • the labyrinth channel 25 each forms a natural filter and can, for example, also be used to heat the air drawn in over the extent of the labyrinth channel 25, a heating element having to be provided in the labyrinth channel 25 for this purpose.
  • FIG. 6a shows a simple embodiment of such a labyrinth channel 25 and FIG. 6b shows a meander-like meandering through the second diaphragm 21 'and thereby significantly increasing its overall length.
  • FIGS. 8a and 8b show the functional principle explained in FIGS. 8a and 8b. Since the second panel 21 'adjoining the second section 32 is designed with a labyrinth channel 25, the fan 11 can be ante generate a passage through the air space 3, so that air is sucked in, for example, through the labyrinth channel 25 and expelled through the ventilation opening 22.
  • a heating element does not necessarily have to be provided here, and this can be used for additional heating of the air in the air space 3.
  • the ventilation opening 22 can also be formed by a cladding element 24 indicated schematically in FIG. 7a, which is fitted into the first panel 21 and is visually appealing.
  • the suction opening in the second screen 21 1 can also be provided in a visually appealing manner and, for example, as a ventilation grille.
  • the fan 11 can in principle be arranged in any area of the air space 3, wherein it is preferably positioned in a transition area, as shown in FIGS lying section merges into a section extending between the piece of furniture 2 and the floor 1 '. To facilitate assembly and particularly simple maintenance, the fan 11 can, however, also, as shown in FIG. The air duct 14 is reduced to a minimum here.
  • no heating element 12 is provided.
  • air is only sucked in from the outside when the air outside the air space 3 is not yet completely saturated with moisture.
  • the first sensor 41 measures the temperature and the relative humidity and transmits these to the control device 13, which determines whether the air can still absorb additional moisture at the measured temperature. If this is the case, air is passed through, for example Labyrinth channels 25 sucked into the second diaphragm 21 'and ejected again from the ventilation opening 22.
  • cyclic operation can take place in which the air is first conveyed through the air space 3 in one direction and then in the other direction, as indicated by the different flow directions of the air currents in FIGS. 8a and 8b.
  • the first sensor 41 can also be arranged outside the air space 3 or on an edge region of the air space 3, so that the values of the air are recorded in the room in which the piece of furniture is arranged.
  • a third sensor (not shown) can also be provided on or in the second panel 21 '.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Ventilation (AREA)

Abstract

L'invention concerne un système de ventilation forcée dans une chambre à air (3), qui est fermée sur la périphérie par des panneaux (21, 21'), entre une paroi (1) et une garniture (2), comprenant au moins un ventilateur (11), un dispositif de commande (13) et au moins un canal de guidage d'air (14). Le dispositif de commande (13) est relié au(aux) ventilateur(s) (11) pour effectuer des commandes et étant conçu pour commander et réguler celui-ci, le ou les ventilateurs (11) et le ou les canaux de guidage d'air (14) sont disposés dans la chambre à air (3), et un canal de guidage d'air respectif (14) relie de manière fluidique une ouverture de ventilation respective (22) disposée dans un premier panneau (21) à chaque ventilateur (11). Un second panneau (21'), ayant une ouverture d'aspiration (23), forme un canal à labyrinthe (25), et une ouverture du canal à labyrinthe (25) forme l'ouverture d'aspiration (23), ladite ouverture étant espacée de manière fluidique de la chambre à air (3). Le/les ventilateurs (11) divisent la chambre à air (3) en une première section (31) délimitée par le canal de guidage d'air (14) et une seconde section (31) délimitée par la paroi (1) et la pièce de meuble (2) et sont conçus pour générer un flux d'air dans la seconde section (31) de la chambre à air (3) à travers l'ouverture d'aspiration (23) et le canal à labyrinthe (25) et hors de la seconde section (31) à travers le canal de guidage d'air (14) de telle sorte que l'air provenant du ventilateur (11) peut être aspiré à travers l'ouverture d'aspiration (23) et peut être soufflé à travers l'ouverture de ventilation (22).
EP21707988.8A 2020-03-17 2021-02-24 Système de ventilation forcée pour chambre à air, fermée par au moins un panneau, entre une paroi et une garniture Pending EP4065789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020107238.4A DE102020107238A1 (de) 2020-03-17 2020-03-17 Zwangsbelüftungssystem für einen durch zumindest eine Blende abgeschlossenen Luftraum zwischen einer Wand und einem Möbelstück
PCT/EP2021/054581 WO2021185545A1 (fr) 2020-03-17 2021-02-24 Système de ventilation forcée pour chambre à air, fermée par au moins un panneau, entre une paroi et une garniture

Publications (1)

Publication Number Publication Date
EP4065789A1 true EP4065789A1 (fr) 2022-10-05

Family

ID=74732944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21707988.8A Pending EP4065789A1 (fr) 2020-03-17 2021-02-24 Système de ventilation forcée pour chambre à air, fermée par au moins un panneau, entre une paroi et une garniture

Country Status (3)

Country Link
EP (1) EP4065789A1 (fr)
DE (1) DE102020107238A1 (fr)
WO (1) WO2021185545A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE19922007A1 (de) 1999-05-12 2000-11-16 Lixin Fu Aggregat zur Feuchtigkeitsvermeidung im engspaltigen Raum
US7247090B2 (en) * 2001-11-08 2007-07-24 Vacek Sam S System and method for inhibiting moisture and mold in an outer wall of a structure
US20070293139A1 (en) * 2001-11-08 2007-12-20 Vacek Sam S System and Method for Inhibiting Moisture and Mold in Structures
DE10341913A1 (de) * 2003-07-16 2005-02-10 Wurz, Dieter, Prof. Dr.-Ing. Kontrollierte Hinterlüftung der Wärmedämmung von Gebäuden
CA2594220C (fr) 2007-06-15 2008-11-18 Joao Pascoa Fernandes Systeme de suppression de l'humidite
DE102011008587A1 (de) * 2011-01-14 2012-07-19 Infra Eps Machinery Gmbh Entfeuchtungsanlage
DE202012013007U1 (de) * 2012-11-09 2014-07-01 Binker Materialschutz Gmbh Vorrichtung zum Klimatisieren
EP3020881B1 (fr) 2014-11-14 2020-08-05 Saint-Gobain Isover Méthode et système pour l'isolation intérieure d'un mur
DE202019000666U1 (de) 2019-02-12 2019-03-20 Uwe Häußer Präventionssystem zur Vermeidung von Schimmelbildung unter eingeschränkten Luftzirkulationsbedingungen in innerräumlichen, durch Einrichtungsgegenstände erzeugten Zwischenräumen

Also Published As

Publication number Publication date
DE102020107238A1 (de) 2021-09-23
WO2021185545A1 (fr) 2021-09-23

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