EP1497593B1 - Systeme de manipulation de gaz - Google Patents

Systeme de manipulation de gaz Download PDF

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Publication number
EP1497593B1
EP1497593B1 EP03721186A EP03721186A EP1497593B1 EP 1497593 B1 EP1497593 B1 EP 1497593B1 EP 03721186 A EP03721186 A EP 03721186A EP 03721186 A EP03721186 A EP 03721186A EP 1497593 B1 EP1497593 B1 EP 1497593B1
Authority
EP
European Patent Office
Prior art keywords
casing
units
channels
gas
supporting structure
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
EP03721186A
Other languages
German (de)
English (en)
Other versions
EP1497593A1 (fr
Inventor
Daniel Westberg
Gunnar Roos
Tobias SAGSTRÖM
Lisa Flawn Orpana
William Lawrance
Peder Evers
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.)
Flaekt Woods AB
Original Assignee
Flaekt Woods AB
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 Flaekt Woods AB filed Critical Flaekt Woods AB
Publication of EP1497593A1 publication Critical patent/EP1497593A1/fr
Application granted granted Critical
Publication of EP1497593B1 publication Critical patent/EP1497593B1/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
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems

Definitions

  • the present invention relates to a gas handling system and to a method of constructing it according to the preamble of claims 1 and 23, respectively.
  • a system and method are known from DE-A-2 519 457.
  • Gas handling systems are often custom-built and delivered to customers as a single factory-assembled block or in a multitude of elements that have to be constructed on site.
  • gas-handling systems are constructed using a framework of galvanized or stainless steel parts that are joined together. Steel panels are attached to the framework to form the outer casing of the system and the components of the gas handling system are mounted onto the casing.
  • the construction of the outer casing is a complicated and time-consuming process as the metal panels have to be cut to shape and attached to the framework of the casing by riveting, screwing or welding. Manufacturing tolerances are high, as the elements constituting the system have to be produced with great precision to ensure accurate joining of the various parts.
  • the casing comprises many individual parts, which results in high material costs.
  • the system must be constructed with care and skill and mounting tools such as screwdrivers, riveting or welding tools are often required which also make the assembly costly.
  • a gas handling system comprising one or more components such as a fan, filter, sound attenuator, humidifier, heater, cooler or heat exchanger enclosed in a casing, said casing comprises a plurality of conjoined units that comprise sealing means to provide a gas-tight seal between adjacent units.
  • the gas handling system is characterized in that each unit comprises one or more channels that are aligned with corresponding channels in other units when said units are joined together, and that at least one of said channels is provided with a tension element threaded through said channel and is used as a guide for the tension element, which is arranged to draw the units together to form said casing.
  • the object of the invention is further achieved by a method according to claim 23.
  • each unit is placed on a common beam or base plate and then a person can draw the units together without requiring any special tools.
  • the assembly work does not have to be carried out by a skilled person and because the casing is constructed first and then at least one component such as a fan, filter, sound attenuator, humidifier, heater, cooler or heat exchanger is inserted into said casing, great strength is not required.
  • An advantage of this type of assembly is that the person constructing the system does not need to have access to all sides of the units. He/she merely aligns the units and draws them together. This means that a system can, for example, be constructed adjacent to a watt or in a space-restricted location.
  • the gas handling system is constructed by prefabricating the plurality of individual units by gluing their constituent elements together, aligning the units and joining said units together for example by applying a force to the ends of casing to push the individual units together.
  • said channels contain connecting means between the components inside the casing i.e. electrical cables or optical fibres for transmitting signals between the components.
  • the connecting means do not hinder the flow of gas passing through the system as they are separated from the gas stream.
  • sealing means are applied between adjacent units to provide a gas-tight seal.
  • the sealing means can be adapted to seal off the channels from the gas passing through the gas-handling system.
  • Another possibility is to provide a light source, such as light emitting diodes, in a transparent channel along the inside of the casing so as to illuminate the inside of the system during maintenance or repair work or to aid monitoring of the system by sensors such as surveillance cameras when the system is in use.
  • the presence of surveillance cameras along the inside of the casing eliminates the need for inspection windows, which are common in conventional systems, which decreases the number of potential leak sites.
  • the units which can have any cross-sectional shape, have the same transverse dimensions so that they are interchangeable.
  • the individual units can be separated easily so the gas-handling system can be readily adapted to a different length or function to meet different/changing requirements.
  • systems can be modified easily by ordering new supplementary or replacement units. This dimensioning also aids efficient packaging, storage, handling, transportation and installation of the system.
  • said casing comprises at least one unit whose constituent elements are glued together.
  • the constituent elements of a unit comprise spacer means that position the elements at the optimum distance for gluing.
  • the spacer means can either be incorporated into the design of the constituent elements or can be placed in-between elements that are to be glued together during the assembly of the unit.
  • the glue used can be adapted to have vibration-damping properties.
  • the casing according to the present invention can be made of any material however according to a preferred embodiment of the invention the casing comprises a material having a density up to 3000 kgm -3 , preferably in the range 100 to 500 kgm -3 thereby significantly reducing the weight of the gas handling system as compared to a conventional system.
  • the material is chosen to provide an inner casing surface that is at least one of the following: smooth, impenetrable, hygroscopic, non-hygroscopic, diffusion- and emission-free, wear resistant, thermally stable and/or chemical resistant.
  • the casing material comprises either a homogeneous material, such as a polymer/plastic, a composite, or a laminate fused by direct lamination under pressure and at high temperature such as Artboard TM or a laminate fused by high-pressure lamination such as Perstorp Laminate TM . Both of these laminates are currently used as flooring.
  • the casing comprises material that is setf-supporting and which does not require a supporting framework as a foundation.
  • Artboard TM is a fiber composite laminate consisting of mainly thermoset plastic and glass fibre having a density of 160 kgm -3 . Using Artboard as the casing material can therefore reduce the weight of a gas handling system by up to 70%.
  • Perstorp Laminate TM is a thermoset composite plastic fused at high temperature and pressure to form cross-linked polymers providing a stable, homogeneous material. It consists of layers of kraft paper, a brown paper made from high-quality sulphate wood pulp impregnated with phenolic resin which form a strong, rigid core and paper impregnated with clear melamine resin which provides an enormous durable, smooth surface.
  • the internal corners of the casing are rounded to produce perfectly smooth internal walls making cleaning easier and reducing the number of sites at which unwanted matter such as dirt or moisture can collect. This can be done by inserting corner joint pieces for example.
  • the casing incorporates at least one drainage canal to facilitate cleaning of the system.
  • a gas handling system according to the present invention is therefore suitable for hygienic applications such as in a hospital, laboratory, in offshore or electronics applications or any other environment requiring a strictly controlled gas atmosphere.
  • the said at least one component making up the gas handling system is supported on a structure that is inserted into or removed from the system via openings in the casing.
  • This supporting structure can be a rack for example to which said component, or a plurality of components, is/are fastened. The components can thus be held in place without having to be fastened to the casing.
  • the surface of the supporting structure that makes contact with the casing comprises a low friction material that aids its movement into and out of said casing.
  • the supporting structure moves along guide rails or low friction material fixed to the inside of said casing. Such an arrangement means that components can be easily and rapidly installed and subsequently removed from the system for maintenance, replacement or cleaning.
  • the supporting structure comprises a panel of material that forms part of the casing when the supporting structure is in position inside the casing.
  • Figure 1 depicts the constituent elements of a single unit 10 having a square cross-section.
  • the unit can of course be of any cross-sectional shape and size so that it can accommodate either a single component or an entire gas handling system. Since the number of elements constituting a single unit can be reduced such as by elimination of screws, the unit and thus the entire casing can be assembled at low cost.
  • the unit comprises small channels 11 that run along the length of the unit. These channels can be aligned with corresponding channels in other units and can be used as a guide for a tension element when conjoining a plurality of units, or for electric/optic cables or a light source for example.
  • the channels 11 can be located at the top, bottom and/or sides of the unit(s). Channels that carry light to illuminate the inside of the casing must run internally along the inside of the casing however the channels used as guides for a tension element or to accommodate connection cables may also be located externally along the outside of the units.
  • Figure 2 shows part of the element 12 indicated in figure 1, which contains a channel 11 through which a tension element/electric or optic cable can be threaded.
  • the element comprises spacer means 13 to position adjacent elements at the optimum distance for gluing together.
  • Figure 3 illustrates a method of conjoining three prefabricated units 10.
  • the units are placed on a common beam, movable supporting means or on a low friction surface and tension elements 14, that are threaded through channels 11 running along the length of the units are used to draw the individual units together.
  • the method of constructing a casing therefore comprises the steps of prefabricating individual units each having at least one channel that can be aligned with corresponding channels in other units, aligning the units, threading a tension element through said channels and drawing said units together.
  • the units comprise sealing means 15 to provide a gas-tight seal between adjacent units.
  • the sealing means 15 are arranged to seal off the channels 11 from the gas stream.
  • Figure 4 shows two conjoined units 10.
  • One of the units contains a component (not shown) of a gas handling system that is supported on structure 16 that can be inserted into and removed from the system.
  • the units comprise removable panels or doors 17 that are sealed to the smooth outer surface of the casing once the components of the gas handling system have been placed inside the casing.
  • the supporting structure 16 that bears the component is constructed to include a panel that provides part of the casing when it is in place inside the system.
  • Figure 5 shows a preferred casing material for a gas handling system. It comprises a laminate 18 having a core 19 consisting of layers of brown paper made from high-quality sulphate wood pulp impregnated with phenolic resin. The surfaces 20 of the laminate comprise paper impregnated with clear melamine resin. The laminate can be modified to contain energy absorbing material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Gases (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Glass Compositions (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Claims (25)

  1. Système de traitement de gaz, comprenant un ou plusieurs éléments tels qu'un ventilateur, un filtre, un atténuateur du son, un humidificateur, un dispositif de chauffage, un dispositif de refroidissement ou un échangeur de chaleur enfermé dans une enveloppe, l'enveloppe comprenant une pluralité d'unités (10) réunies qui comprennent des moyens (15) d'étanchéité pour ménager un joint étanche au gaz entre des unités voisines, caractérisé en ce que chaque unité (10) comprend un ou plusieurs canaux (11) qui sont alignés avec des canaux correspondants d'autres unités lorsque ces unités sont réunies et en ce qu'au moins l'un des canaux (11) est muni d'un élément (14) tendeur vissé dans le canal (11) et est utilisé comme guide pour l'élément (14) tendeur, qui est conçu pour tirer les unités (10) ensemble pour former l'enveloppe.
  2. Système suivant la revendication 1, caractérisé en ce que les canaux (11) sont conçus pour courir le long de la longueur des unités (10).
  3. Système suivant la revendication 1 ou 2, caractérisé en ce que les canaux (11) sont disposés au sommet et au bas et/ou sur les côtés des unités (10).
  4. Système suivant la revendication 2 ou 3, caractérisé en ce que les canaux (11) sont disposés intérieurement le long de l'intérieur des unités.
  5. Système suivant la revendication 2 ou 3, caractérisé en ce que les canaux (11) sont disposés à l'extérieur le long de l'extérieur des unités.
  6. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que les canaux (11) contiennent des câbles électriques/optiques pour transmettre des signaux entre des éléments à l'intérieur de l'enveloppe.
  7. Système suivant les revendications 1 à 4 ou 6, caractérisé en ce que les canaux (11) sont transparents et contiennent une source lumineuse, de manière à éclairer l'intérieur de l'enveloppe.
  8. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'enveloppe comprend au moins une unité (10) dont des éléments constitutifs sont collés ensemble.
  9. Système suivant la revendication 8, caractérisé en ce que les éléments constitutifs comprennent des moyens (13) d'entretoisement qui mettent ces éléments en position à la distance la meilleure pour le collage.
  10. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que les unités (10) ont les mêmes dimensions transversales, de sorte qu'elles sont interchangeables.
  11. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'enveloppe comprend un matériau ayant une masse volumique allant jusqu'à 2500 kgm-3, de préférence de l'ordre de 100 à 500 kgm-3.
  12. Système suivant la revendication 11, caractérisé en ce que le matériau ménage une surface intérieure de l'enveloppe qui a au moins l'une des propriétés suivantes : lisse, impénétrable, hygroscopique, non-hydroscopique, exempte de diffusion et exempte d'émission, résistante à l'usure, stable thermiquement, résistante aux produits chimiques.
  13. Système suivant les revendications 11 ou 12, caractérisé en ce que le matériau comprend un matériau homogène ou composite.
  14. Système suivant les revendications 11 ou 12, caractérisé en ce que le matériau comprend un stratifié ou un stratifié (18) résistant aux hautes pressions.
  15. Système suivant l'une quelconque des revendications 11 à 14, caractérisé en ce que le matériau comprend une matière absorbant de l'énergie.
  16. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que les coins internes de l'enveloppe sont arrondis pour produire des parois internes parfaitement lisses.
  17. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'enveloppe incorpore au moins un canal de drainage pour faciliter le nettoyage du système.
  18. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce que au moins un élément est supporté sur une structure (16) qui est insérée dans l'enveloppe ou qui en est enlevée.
  19. Système suivant la revendication 18, caractérisé en ce que la surface de la structure (16) porteuse qui fait contact avec l'enveloppe comprend un matériau à petit coefficient de frottement qui facilite son mouvement pour le faire entrer et sortir de l'enveloppe.
  20. Système suivant les revendications 18 ou 19, caractérisé en ce que la structure (16) porteuse est mobile le long de rails de guidage ou de matériau à faible coefficient de frottement fixés à l'intérieur de l'enveloppe.
  21. Système suivant l'une quelconque des revendications 18 à 20, caractérisé en ce que la structure (16) porteuse comprend un panneau qui forme une partie de l'enveloppe lorsque la structure porteuse est en position à l'intérieur de l'enveloppe.
  22. Système suivant l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend, en outre, des capteurs, tels que des caméras de surveillance, le long de l'intérieur de l'enveloppe pour surveiller le système.
  23. Procédé de construction d'un système de traitement de gaz enfermé dans une enveloppe comprenant les stades dans lesquels :
    - on préfabrique une pluralité d'unités (10) individuelles,
    - on réunit les unités (10) ensemble en appliquant des moyens (15) d'étanchéité pour ménager un joint étanche au gaz entre des unités (10) voisines, et
    - on insère au moins un élément tel qu'un ventilateur, un filtre, un atténuateur du son, un humidificateur, un dispositif de chauffage, un dispositif de refroidissement, un échangeur de chaleur, par une ouverture, dans l'enveloppe,
    caractérisé en ce que le procédé comprend, en outre, les stades dans lesquels :
    - on aligne chaque unité (10) qui a au moins un canal (11) avec des canaux correspondants d'autres unités, et
    - on réunit les unités (10) en vissant un élément (14) tendeur dans les canaux et au moins de l'élément (14) tendeur on tire les unités ensemble pour former l'enveloppe.
  24. Procédé suivant la revendication 23, caractérisé en ce qu'il comprend, en outre, le stade de préfabrication d'une pluralité d'unités (10) individuelles en collant leurs éléments constitutifs ensemble.
  25. Utilisation d'un système suivant l'une quelconque des revendications 1 à 22, dans un hôpital, un laboratoire, dans des applications en mer ou électroniques ou dans tout autre ambiance exigeant une atmosphère gazeuse strictement contrôlée.
EP03721186A 2002-04-09 2003-04-09 Systeme de manipulation de gaz Expired - Lifetime EP1497593B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0201061A SE525055C2 (sv) 2002-04-09 2002-04-09 Gasbehandlingssystem inneslutet i ett hölje som består av ett flertal med varandra förbundna enheter, samt en metod att konstruera och användning av ett sådant system
SE0201061 2002-04-09
PCT/SE2003/000579 WO2003087676A1 (fr) 2002-04-09 2003-04-09 Systeme de manipulation de gaz

Publications (2)

Publication Number Publication Date
EP1497593A1 EP1497593A1 (fr) 2005-01-19
EP1497593B1 true EP1497593B1 (fr) 2006-07-26

Family

ID=20287523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03721186A Expired - Lifetime EP1497593B1 (fr) 2002-04-09 2003-04-09 Systeme de manipulation de gaz

Country Status (7)

Country Link
EP (1) EP1497593B1 (fr)
AT (1) ATE334356T1 (fr)
AU (1) AU2003224528A1 (fr)
DE (1) DE60307080T2 (fr)
DK (1) DK1497593T3 (fr)
SE (1) SE525055C2 (fr)
WO (1) WO2003087676A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471292B (en) * 2009-06-23 2013-09-11 Flakt Woods Ltd An air handling unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519457A1 (de) * 1975-05-02 1977-02-17 Mabag Luft & Klimatechnik Luftbehandlungsvorrichtung, insbesondere lueftungs- oder klimageraet
SE417641B (sv) * 1979-08-02 1981-03-30 Hisaka Works Ltd Plattvermevexlare
NL9000987A (nl) * 1990-04-25 1991-11-18 Lubbers Installaties B V Inrichting voor luchtbehandeling.

Also Published As

Publication number Publication date
AU2003224528A1 (en) 2003-10-27
DE60307080T2 (de) 2007-02-08
ATE334356T1 (de) 2006-08-15
SE0201061D0 (sv) 2002-04-09
EP1497593A1 (fr) 2005-01-19
WO2003087676A1 (fr) 2003-10-23
DE60307080D1 (de) 2006-09-07
SE525055C2 (sv) 2004-11-23
SE0201061L (sv) 2003-12-08
DK1497593T3 (da) 2006-11-27

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