EP1455144B1 - Grille de ventilation - Google Patents

Grille de ventilation Download PDF

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Publication number
EP1455144B1
EP1455144B1 EP04003569A EP04003569A EP1455144B1 EP 1455144 B1 EP1455144 B1 EP 1455144B1 EP 04003569 A EP04003569 A EP 04003569A EP 04003569 A EP04003569 A EP 04003569A EP 1455144 B1 EP1455144 B1 EP 1455144B1
Authority
EP
European Patent Office
Prior art keywords
grid according
ventilating grid
ventilating
folded perforated
perforated plates
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
Application number
EP04003569A
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German (de)
English (en)
Other versions
EP1455144A1 (fr
Inventor
Matthias Hermann
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.)
Uebigauer Elektro- und Schaltanlagen UESA GmbH
Original Assignee
Uebigauer Elektro- und Schaltanlagen UESA GmbH
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 Uebigauer Elektro- und Schaltanlagen UESA GmbH filed Critical Uebigauer Elektro- und Schaltanlagen UESA GmbH
Publication of EP1455144A1 publication Critical patent/EP1455144A1/fr
Application granted granted Critical
Publication of EP1455144B1 publication Critical patent/EP1455144B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/04—Air-ducts or air channels

Definitions

  • the invention relates to a ventilation grille, preferably to transformers and switchgear, air conditioning and filtering systems and vehicle systems to be ventilated, which can be arranged in the outer walls of a housing, building, a wrapper or the like.
  • Ventilation grills are known. Folding grids for various applications and users have also been produced for years, for example. It is also known to form a perforated plate with specially arranged apertures by pressing wrinkles to a lamellar grid. In this case, water-repellent surfaces are provided which have no perforations and air-permeable areas with perforations. The air-permeable areas are provided in the water-protected areas. Depending on the purpose, the air-permeable areas can be changed with respect to the open cross-section. These known ventilation grilles have various disadvantages which considerably limit the area of use.
  • nozzle air grille for the supply and exhaust air for ventilation systems is known, the disclosed there embodiment is not suitable to be used as a ventilation grille for higher requirements.
  • the wave crests of the ventilation grille are open and thus not safe against driving rain.
  • a fürstochem in electrical equipment is prevented in any way. Dust and insects can enter unhindered.
  • the object of the invention is to provide a ventilation grille that can be produced easily and at a reasonable cost and at the same time eliminates the disadvantages of known solutions described above.
  • the invention is based on the prior art described above and proposes to solve the task a ventilation grille, preferably on transformers and switchgear, air conditioning and filtering systems and vehicle systems to be ventilated, in the outer walls of a housing, building, a wrapper or the like can be arranged or used, formed from a pressed to a lamellae perforated plate, in particular a folded perforated plate, with at least one air-permeable region, which is characterized in that a double-shell design of the grid region is provided and at least two folded perforated plates in cross-section considered one behind the other, in particular spaced apart from each other, forming a common element.
  • the required for ventilation grille especially in electrical equipment area poke safety is achieved because the fürschochem is no longer possible through the double-shelled training.
  • the wire or pointed object will hit an obstruction, namely the second shell, during the piercing of the anterior shell, so that further puncturing is not possible.
  • the wire, object or the like is deflected between the two shells up, down or to the side. As a result, piercing the inner or rear shell or the rear folded perforated plate is no longer possible.
  • the double-shell design also provides significantly better protection against rain, driving rain, snow or precipitating moisture.
  • the moisture can initially drain on the outer shell. If necessary, yet entering water or moisture entering can easily run down both on the inside of the outer shell and on the inside and outside of the inner shell and are derived for example by arranged in the lower region drainage.
  • the moisture drops can adhere to the grid material due to the adhesion and run down or evaporate.
  • This positive and desired property works also in case of any condensation, caused by temperature fluctuations, as they occur naturally, or by occurring when turning on and off the equipment temperature fluctuations. For example, after a long shutdown of a transformer station, it may cause condensation to form when it is put back into operation.
  • the transformer or transformers are heated faster than the envelope, the building or housing.
  • Ventilation grilles in electrical installations must also have high stability in order to absorb high pressures occurring in the event of faults or accidents without being destroyed.
  • a double-shell design is advantageous because it is better able to handle such loads safely.
  • the double-shell design also has the advantage that the proportion of air-permeable areas required depending on the intended use can be varied very easily without impairing the piercing safety and the stability of the grid or of the grid.
  • the invention is characterized, as already described above, also by the fact that viewed in cross section at least two folded perforated plates are arranged one behind the other, in particular spaced from one another, forming a common element.
  • This is, for example, a special design of the double-shell element, which can be obtained from prefabricated perforated plates by special folding and folding.
  • This embodiment also leads to an improvement of the manufacturing process for the ventilation grille according to the invention. This will be described later in more detail.
  • the at least two folded perforated plates were obtained from individual pleated perforated plates and are connected to one another by connecting means.
  • the connection is possible in a simple form by appropriately selected fold with positive connection, at least in the upper and lower regions. But there are others too Connections possible, for example gluing, welding, preferably spot welding, screwing, soldering or the like.
  • Another aspect of the invention is characterized in that the at least two folded perforated plates were obtained by cutting to length and folding from a single element.
  • This variant is particularly inexpensive to produce, has a very good stability and high variability in terms of possible designs. In accordance with existing tools, the production is certainly not expensive.
  • the field of application of the manufactured ventilation grilles is extremely universal.
  • the material forming the folded perforated sheets of endless or sheet material was obtained by cutting to length, cutting or the like. This represents a further improvement of the production process with corresponding production quantities.
  • front-side closure panels are provided, which are adaptable to different sizes, designed for embedding or enclosing the grid.
  • vorzuhalten the end-side closure panels in certain bearing sizes, so as not to be bound to certain manufacturing dimensions.
  • a ventilation grille which is characterized in that the air-permeable region (s) is / are formed as areas provided with perforations.
  • the perforations are variable in size, shape and arrangement and quite cheap to obtain by punching, for example.
  • the perforations of the air-permeable region (s) are variable in their size or in diameter, corresponding to the different inside of the device according to the intended use in the event of faults or accidents Housing occurring pressures or gas flows adaptable to this, are formed.
  • an adjustment by the variation of the sheet thicknesses is provided.
  • a part of the air-permeable areas is formed as a breakthrough.
  • the breakthrough or breakthroughs have a rectangular, square, oval, round or polygonal shape. Also, the number and size of the breakthroughs is very universal according to the particular application and not limited to a few sizes and shapes.
  • a further aspect of the invention is specified in that the air-permeable regions of the folded perforated plates arranged one behind the other are arranged offset from one another. This offset further increases the water- or moisture-repellent properties of the ventilation grille according to the invention. The dust permeability is further reduced by this arrangement.
  • An advantageous development of the ventilation grille according to the invention is characterized in that the air-permeable areas and / or openings of the successive folded perforated plates are arranged offset such that the openings of the front Faltenlochbleches are covered by the rear Faltenlochblech.
  • water-protected areas are provided, at least on the rear or inner folded perforated metal sheet. These can also be formed on the front or outer folded perforated plate.
  • the moisture precipitating on the pleated sheet metal is held by the elasticity of the same or the adhesion to the Faltenlochblechen and passes along the sheets to the lower area where it is discharged to the outside.
  • water-protected areas and air-permeable areas are arranged offset from each other, so that any entering or precipitating moisture preferably runs down the water-protected areas vertically in the installation direction down.
  • a Zuzhoukantung is provided at least in the lower region of the ventilation grille or in or on the frame, which has outwardly facing drainage openings, is discharged via the possibly incoming water and / or condensation to the outside. It is advantageous if the drainage openings are designed as so-called gill openings.
  • a cleaning device which is preferably arranged between the two folded perforated plates.
  • the cleaning device is designed such that it pneumatically, hydraulically or mechanically cleans.
  • various cleaning devices are provided.
  • This can be formed for example as a spraying device in the form of a spray bar.
  • This is advantageously arranged in the upper region of the grid between the two Faltenlochblechen.
  • It is also possible to provide a nozzle arrangement that can be acted upon with compressed air, which allows cleaning by means of compressed air.
  • Scrapers are also advantageous can be arranged between the folded perforated sheets.
  • cleaning brushes cleaning devices are to be arranged according to the invention movable between the Faltenlochblechen.
  • a development of the ventilation grille according to the invention is characterized in that an insect protection or protection is provided against penetrating into the interior microorganisms on or in the grid.
  • the insect protection or protection against penetrating into the interior of small organisms is ensured according to a development of the invention by the choice of the size of the perforations, at least the rear Faltenlochbleches.
  • the invention also provides a system of ventilation grills or for the production of ventilation grids of different sizes according to one or more of the embodiments described above, consisting of endless or strand material for folded perforated plates with different sizes of the air-permeable areas and openings, end closure panels as endless or strand material or for specific sizes prefabricated, insect protection devices or devices to prevent the ingress of microorganisms and various cleaning devices.
  • a system of ventilation grills or for the production of ventilation grids of different sizes consisting of endless or strand material for folded perforated plates with different sizes of the air-permeable areas and openings, end closure panels as endless or strand material or for specific sizes prefabricated, insect protection devices or devices to prevent the ingress of microorganisms and various cleaning devices.
  • the invention also relates to a transformer or switchgear, air conditioning or filter system and vehicle system to be ventilated with a ventilation grille according to one or more of the above-described training and further developments.
  • the method according to the invention can also be achieved with sheet material for folded perforated sheets, which are available as individual sheets.
  • the panels are cut to the appropriate dimensions, folded and then superimposed and with connecting means, e.g. Punk welding, so connected that the two plates spaced from each other and the air-permeable areas are offset from one another.
  • connecting means e.g. Punk welding
  • the interim manufactured, beveled, the frame forming outer sides are mounted so that a ventilation grille ensteht as a common construction element, which can be used for example in a transformer station, a door of the same or otherwise.
  • FIGS. 1a, 1b and 1c each show a section through various embodiments of the ventilation grille according to the invention.
  • the front or outer folded sheet metal sheet is designated
  • the reference numeral 2 relates to the rear or inner folded perforated metal sheet.
  • the two folded perforated sheets 1 and 2 are connected by means of connecting means 10, in the embodiment with spot welded joints.
  • the ventilation grille is surrounded by a frame 8.
  • air-permeable areas 4 are arranged in the front folded perforated plate 1 arranged. A part of these air-permeable areas may be formed as a breakthrough 5. It can also be formed as breakthrough 5 all air-permeable areas of the front folded perforated plate 1.
  • This Zu 2010kantung 6 should optionally absorb dripping liquid and the accumulating dust in the grid. By also schematically indicated drainage holes 7, the liquid with the dust can then be discharged to the outside.
  • the figures 1a and 1b differ only by the different design of Zuzhoukantung 6.
  • a water-protected area is indicated within the dashed line.
  • the folds are preferably designed as V-Lammellen, since they withstand the explosion pressure or possibly also a Implosionstik particularly effective. This is achieved, for example, by the fact that the lamellae are compressed by the pressure occurring, but thereby represent a greater resistance.
  • Fig. 2 shows a front view of the ventilation grille according to the invention.
  • the representation is cut half-side, so that both the front folded perforated plate 1, and the rear folded perforated plate 2 are visible.
  • the already based The reference numerals described with reference to FIG. 1 were used identically in FIG. 2, so that a renewed presentation is dispensed with.
  • FIG. 3 shows a detailed view of an air-permeable region with perforations which are formed as a hexagon.
  • the size of the holes is chosen so that insects can not pass this.
  • the size of the holes is also dependent on the expected explosion pressure inside the system when an accident occurs.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Storage Of Fruits Or Vegetables (AREA)

Claims (23)

  1. Grille d'aération, utilisée de préférence au niveau de transformateurs, de coffrets de commande, de climatiseurs, de filtres et de systèmes d'aération de véhicules, la grille pouvant être située au niveau des murs extérieurs d'un bâtiment, des parois extérieures d'un châssis, d'une boîte ou d'un élément similaire, là grille étant constituée d'une tôle ajourée formée d'une séquence de lamelles et en particulier d'une tôle ajourée et plissée, ainsi que d'au moins une zone perméable à l'air, caractérisée en ce que l'ensemble constituant la grille est formé d'une double couche comportant au moins deux tôles ajourées et plissées (1, 2) situées face à face à une distance donnée et formant une seule grille.
  2. Grille d'aération selon la revendication 1, caractérisée en ce que la ou les zones (3, 4) perméables à l'air sont des zones comportant des jours.
  3. Grille d'aération selon une ou deux des revendications précédentes, caractérisée en ce que la taille ou le diamètre des jours de la ou des zone(s) (3, 4) peut être adapté(e) aux usages ou aux éventuelles situations de dysfonctionnement afin d'être adapté(e) à des pressions et à des flux gazeux pouvant le cas échéant être générés à l'intérieur du châssis.
  4. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'une double tôle ajourée et plissée (1, 2) comporte deux tôles ajourées, liées entre elles par des moyens de connexion (10) ou par des procédés de connexion.
  5. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'au moins deux tôles ajourées et plissées (1, 2) sont obtenues à partir d'un seul élément par un procédé de découpe et de pliage.
  6. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que les matériaux permettant de fabriquer des tôles ajourées et plissées (1, 2) sont des matériaux se présentant sous forme de rouleaux, de tiges ou de plaques, qui sont ensuite raccourcis et découpés.
  7. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que les grilles peuvent être fixées et/ou serties par des tôles formant un cadre, qui peut être ajusté à différentes dimensions de grilles.
  8. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'une partie de la zone perméable à l'air (3, 4) comporte une ouverture ininterrompue (5).
  9. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'au moins une partie de la zone perméable à l'air (3, 4) de la tôle ajourée et plissée (1) avant ou extérieure comporte une ouverture (5).
  10. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que la forme de l'ouverture ou des ouvertures (5) peut être rectangulaire, carrée, ovale, ronde ou polyédrique.
  11. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que les zones perméables à l'air (3, 4) des tôles ajourées et plissées (1, 2), situées face à face, sont décalées latéralement l'une par rapport à l'autre.
  12. Grille d'aération selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que les zones perméables à l'air (3, 4) et/ou les ouvertures (5) des tôles ajourées et plissées (1, 2), situées face à face, sont décalées de façon à ce que les ouvertures (5) de la tôle ajourée et plissée avant (1) soient couvertes par la tôle ajourée et plissée arrière (2).
  13. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que le décalage et la distance entre les tôles ajourées et plissées (1, 2), situées l'une derrière l'autre, sont choisis de façon à ce qu'un simple outil ne puisse pas traverser les deux.
  14. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'il existe au moins au niveau de la tôle ajourée et plissée arrière ou intérieure (2) des zones fermées (9), protégées contre les projections d'eau.
  15. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que les zones fermées (9), protégées contre les projections d'eau, et les zones perméables à l'air (3, 4) sont décalées les unes par rapport aux autres de façon à ce que, le cas échéant, l'humidité entrante
    ou la condensation s'écoule, à l'état monté, verticalement vers le bas et de préférence au niveau de la zone fermée.
  16. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'il existe au moins dans la zone inférieure de la grille d'aération ou du cadre (8) un rebord (6) possédant des ouvertures extérieures d'écoulement (7) qui permettent, le cas échéant, de guider des liquides rentrés à l'intérieur de la grille, par exemple de l'eau et/ou de la condensation, vers l'extérieur.
  17. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'un dispositif de nettoyage est prévu et situé, de préférence, entre les deux tôles ajourées et plissées (1, 2).
  18. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que le dispositif de nettoyage est configuré de façon à pouvoir nettoyer par des moyens pneumatiques, hydrauliques ou mécaniques.
  19. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce qu'il existe au niveau de la grille une protection contre les insectes, empêchant les petits animaux de rentrer à l'intérieur de la grille.
  20. Grille d'aération selon une ou plusieurs des revendications précédentes, caractérisée en ce que la protection contre les insectes, empêchant les petits animaux de rentrer à l'intérieur de la grille, est réalisée par le choix des dimensions des ouvertures de la tôle ajourée et plissée et ceci, au moins au niveau de la tôle ajourée et plissée arrière (2).
  21. Système de grilles d'aération ou de fabrication de telles grilles, de dimensions variables, selon une ou plusieurs des revendications précédentes 1 à 20, consistant en des dispositifs de protection contre les insectes, empêchant les petits animaux de rentrer à l'intérieur de la grille, en différents dispositifs de nettoyage et en des tôles ajourées et plissées (1, 2) comportant des zones perméables à l'air (3, 4), des ouvertures (5) de dimensions différentes et des tôles formant un cadre autour des grilles, ces tôles étant fabriquées à partir de matériaux se présentant sous forme de rouleaux, de tiges ou prédécoupées à différentes dimensions.
  22. Transformateur, coffret de commande, climatiseur, filtre ou système d'aération pour véhicules, comportant une grille d'aération selon une ou plusieurs des revendications précédentes 1 à 20.
  23. Procédé de fabrication d'une grille d'aération selon une des revendications 1 à 20, caractérisé par la séquence de procédés de fabrication suivante :
    - coupe et découpe des matériaux, formant ultérieurement des tôles ajourées et plissées, matériaux disponibles sous forme de rouleaux, de tiges ou de plaques et de préférence sous forme d'une seule pièce pouvant être, soit des tiges, soit des plaques,
    - pliage des tôles ajourées à la forme souhaitée,
    - interconnexion des tôles ajourées et plissées par des moyens de connexion,
    - découpe et fixation des parties extérieures formant le cadre.
EP04003569A 2003-03-07 2004-02-18 Grille de ventilation Expired - Lifetime EP1455144B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20303783U 2003-03-07
DE20303783U DE20303783U1 (de) 2003-03-07 2003-03-07 Lüftungsgitter

Publications (2)

Publication Number Publication Date
EP1455144A1 EP1455144A1 (fr) 2004-09-08
EP1455144B1 true EP1455144B1 (fr) 2006-12-27

Family

ID=28799134

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Application Number Title Priority Date Filing Date
EP04003569A Expired - Lifetime EP1455144B1 (fr) 2003-03-07 2004-02-18 Grille de ventilation

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Country Link
EP (1) EP1455144B1 (fr)
AT (1) ATE349659T1 (fr)
DE (2) DE20303783U1 (fr)
PL (1) PL365809A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156633B (zh) * 2020-02-12 2024-02-20 南通市第一人民医院 一种洁净用新风系统及其使用方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187357B (de) 1961-07-31 1965-02-18 Korrokunststoff Korrossionstec Duesenluftgitter fuer Zu- bzw. Abluft
US3302554A (en) * 1965-01-05 1967-02-07 Leslie Welding Co Inc One piece louver unit
DE1975409U (de) 1967-05-13 1967-12-21 Karl Troyer Einbaueinheit fuer fenster, waende od. dgl. zum be- und entlueften von raeumen.
AU453831B2 (en) * 1971-03-23 1974-09-26 Turco Industries Pty. Ltd Improvements in and relating to ventilators
EP0501840A3 (en) * 1991-03-01 1993-04-28 H.H. Robertson (U.K.) Limited Ventilated wall
US5349799A (en) * 1993-08-25 1994-09-27 Mid-America Building Products Corporation Plastic gable vent
DE19729015C2 (de) * 1997-07-02 2000-08-17 Karl Kern Verkleidungsblech
US6138424A (en) * 1998-07-28 2000-10-31 Beutler Heating & Air Conditioning Vent apparatus for attachment to a building structure
DE10031420C2 (de) 2000-06-28 2003-04-17 Damgartener Tischler Gmbh Fenster mit Lüftungseinrichtung

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Publication number Publication date
PL365809A1 (en) 2004-09-20
ATE349659T1 (de) 2007-01-15
DE502004002411D1 (de) 2007-02-08
EP1455144A1 (fr) 2004-09-08
DE20303783U1 (de) 2003-10-02

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