EP0800638A1 - Process and device for cooling a space - Google Patents

Process and device for cooling a space

Info

Publication number
EP0800638A1
EP0800638A1 EP96934299A EP96934299A EP0800638A1 EP 0800638 A1 EP0800638 A1 EP 0800638A1 EP 96934299 A EP96934299 A EP 96934299A EP 96934299 A EP96934299 A EP 96934299A EP 0800638 A1 EP0800638 A1 EP 0800638A1
Authority
EP
European Patent Office
Prior art keywords
cooling
cooling element
condensate
room
cooling device
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.)
Granted
Application number
EP96934299A
Other languages
German (de)
French (fr)
Other versions
EP0800638B1 (en
Inventor
Helmut Sokolean
Klaus Roschmann
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.)
Barcol Air AG
Original Assignee
Barcol Air AG
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 Barcol Air AG filed Critical Barcol Air AG
Publication of EP0800638A1 publication Critical patent/EP0800638A1/en
Application granted granted Critical
Publication of EP0800638B1 publication Critical patent/EP0800638B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F24F5/0092—Systems using radiation from walls or panels ceilings, e.g. cool ceilings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/01—Radiant cooling

Definitions

  • the invention relates to a method for cooling a room according to the preamble of claim 1 and an apparatus for performing the method.
  • a device for air drying and cooling is also known (DE-A-28 02 550), in which the air is sucked in by a fan via a cooling element which has cooled below freezing at times and the same for a short time
  • the invention is intended to remedy this.
  • the invention as characterized in the claims, provides a method for air conditioning rooms, in which the temperature of the cooling element is no longer limited by the dew point.
  • the basic idea is to cool the cooling element to such an extent during the cooling phases that largely cover the times in which the air-conditioned room is used that condensate that settles on it quickly freezes up, thereby preventing annoying condensed water.
  • Regeneration phases which will generally be chosen so that they lie outside of the times of use, the icy condensate is melted off and drained off in liquid form.
  • the advantages achieved by the invention lie primarily in the fact that the temperature of the cooling element can be set as low as desired. As a result, very high cooling capacities can be achieved even with small cooling surfaces, even if the heat exchange with the room to be air-conditioned takes place exclusively via radiation and, if necessary, free convection. This effect is further supported by the fact that ice in the infrared range comes very close to a black body in its radiation properties and the icing of the cooling element has a very favorable effect on the decisive direct or indirect radiation exchange with objects in an air-conditioned room.
  • the cooling elements can thus be kept small and simple in construction, which of course reduces the costs, and no longer play the previous restrictive role as a boundary condition of the interior design.
  • the humidity of the room air increases rapidly, especially when the room is used for a long time with a high concentration of people. This is perceived as unpleasant and often leads to attempts to remedy the situation by opening the windows, but this often exacerbates the problem, particularly in the summer months, due to the high humidity of the outside air.
  • the high humidity can ultimately lead to the risk of even at a relatively high temperature of the cooling elements There is condensation and the cooling system is switched off entirely by dew point monitors. The cooling therefore fails when it is most needed.
  • Humidity bound by the condensate icing on the cooling element This keeps the room air dry, which considerably improves comfort and prevents difficulties of the type described.
  • FIG. 1 schematically shows a section through a room which is air-conditioned by the method according to the invention
  • FIG. 2a shows a top view of a first embodiment of an inventive device for carrying out the inventive method
  • FIG. 2b shows a cross section along B-B through the device of Fig. 2a
  • FIG. 3a shows a top view of a second embodiment of a device according to the invention for carrying out the method according to the invention
  • 3b shows a cross section along BB through the device of Fig. 3a
  • 4a is a plan view of a third embodiment of an apparatus according to the invention for carrying out the method according to the invention
  • FIG. 4b shows a cross section along B-B through the device of Fig. 4a
  • a room 1 to be air-conditioned contains heat-radiating objects, such as people and devices, which exchange heat through a perforated ceiling 2 with a cooling device.
  • the cooling device comprises at least one cooling element 3, which is connected directly or indirectly to a cooling unit 6 via a feed line 4 and a discharge line 5, as well as a condensate tray 7 arranged somewhat vertically below the cooling element 3 and having a somewhat larger surface area with an outlet 8.
  • the cooling device is above the perforated ceiling 2 arranged. However, it is also possible to integrate the condensate pan 7 in the ceiling 2, for. B. so that it replaces a ceiling tile.
  • Above the cooling device preferably about 20-30 cm from the cooling element, a ceiling or false ceiling 9 made of concrete or plaster is drawn in.
  • the cooling element 3 is cooled below the freezing point, at least to -5 ° C, but preferably significantly lower, e.g. B. to -40 ° C.
  • condensate will soon settle on the cooling element, which will immediately freeze and thus become bound.
  • the cooling of the room 1 takes place predominantly by radiation exchange via the false ceiling 9, which is strongly cooled by direct radiation exchange with the icy cooling element, since it comes very close to an ideal black body in the infrared range and the radiation emanating from the false ceiling 9 is highly efficient absorbs, while it radiates much less heat against the false ceiling 9 even because of its low temperature.
  • the false ceiling 9 exchanges heat radiation with the space 1, in particular with the heat-radiating objects therein, through the perforated ceiling 2 by absorbing part of the heat radiation emitted by them and even emitting less heat than it absorbs because of its lower temperature. Part of the radiation reaching the false ceiling 9 is naturally reflected and partially absorbed by the cooling element 3.
  • the condensate tray 7 is also cooled by radiation exchange with the cooling element 3 and in turn contributes to the cooling of the space 1 by radiation exchange with the space. However, the temperature on the outside of the condensate pan 7 must not drop below the dew point, since otherwise condensate would form on its underside.
  • the heat exchange by radiation is indicated in Fig. 1 by straight arrows.
  • Cooling effect can be achieved.
  • the air also remains in room 1 always relatively dry, because excess humidity condenses on the cooling element 3 and freezes. In this way, optimal conditions are achieved without further measures for the room comfort.
  • the melted water is collected by the condensate pan 7 and discharged via the outlet 8. After the ice has melted completely or even partially, the cooling device is ready for use again.
  • the cooling element 3 is designed as an evaporator made of sheet steel, which is connected to the cooling unit 6 (Fig. 1) via a heat-insulated supply line 4 and a similar discharge line 5, which in this case is designed as a capacitor.
  • Liquid coolant e.g. B. Freon
  • a meandering passage 10 connecting the supply line 4 to the discharge line 5 and thereby cools the cooling element to approximately -40 ° C.
  • the steam is returned to the cooling unit 6 through the discharge line 5 and condensed there with heat removal.
  • the condensate tray 7 arranged below the cooling element 3 has an outer shell 11 made of steel, which is powder-coated on the outside so that it absorbs well there, and an inner shell 12 made of polyurethane or rock wool or another material with low thermal conductivity, which is inserted into the outer shell 11. On the inside it is lined with reflective metal foil.
  • the structure described generally prevents the outside of the condensate pan 7 from cooling below the dew point. If these measures are not sufficient, the outer shell 11 can be easily heated. In order to facilitate the drainage of condensate, the condensate pan 7 is slightly inclined towards the outlet 8.
  • Cooling device arranged at a distance below the same.
  • the part of the false ceiling 9 located above the cooling element 3 is strongly cooled by the radiation exchange with the same and in turn cools the room 1 by radiation exchange. This effect is supported by heat conduction in the false ceiling 1.
  • the radiation exchange with the false ceiling 9 can - at least in the initial phase of a cooling phase when no ice layer has yet formed - be further enhanced by the fact that the cooling element 3 is provided with a well-absorbing coating on the top.
  • its underside facing the condensate pan 7 is preferably designed to be reflective.
  • the cooling element 3 is designed as a U-shaped steel tube 13 through which in the cooling unit 6 (Fig. 1) approx. -40 ° C cooled brine is passed.
  • the steel tube 13 carries on the top a steel plate 14 with which it is welded. It can be painted matt black on the top.
  • the condensate pan 7 is basically constructed in the same way as in the first exemplary embodiment, but it is attached to a pivotable axis 15 parallel to its longitudinal direction, so that it can be pivoted to the side by approximately 90 ° (arrow) from its position below the cooling element 3 .
  • the cooling element 3 is then exposed and can enter into direct radiation exchange with objects in room 1. In this way, a particularly strong cooling effect can be achieved, as z. B. may be desired to cool down a superheated room at the beginning of a cooling phase.
  • the edges of the condensate pan 7 are slightly bent, so that any residual condensate cannot run out when the pan is pivoted.
  • the condensate pan 7 is a flat shell of e.g. B. the shape of a spherical cap.
  • the cooling element 3 is designed as a part of a copper tube bent into a double spiral 16, which in the center of the condensate trough 7 merges into a heat-insulated supply line 4 and a similar discharge line 5, which are drawn into a wide tube 17 made of sheet steel.
  • the double spiral 16 can be provided with a vent valve.
  • Two quick-action couplings 18 connect to the ends of the copper pipe 16, there also two heat-insulated hoses 19, which through the pipe 17 into a between a floor 20 and a concrete floor (not shown) horizontal hollow floor 21 are guided and connected to fixed lines, which establish the connection to the cooling unit 6 (Fig. 1) and lead as a cooling medium brine or glycol.
  • a filter 22 also in the center of the condensate pan 7 is a filter 22, to which an outlet 8 for the melted water connects, which ends in a collecting container 23.
  • the condensate pan 7 is basically constructed the same as in the first embodiment. However, it additionally carries a luminous element, a fluorescent tube 25 for indirect lighting that runs around a reflector 24. Of course, additional lighting elements can be provided for direct lighting.
  • the tube 17 forms, together with a base plate 26 surrounding the same, a stand 27 which carries the cooling element 3 and the condensate tray 7.
  • the foot plate 26 carries on the underside a floor element 28 which can be used at various points on the floor 20 by z. B. replaced a normal floor element.
  • the tube 17 has an opening 29 which can be closed by a cover, behind which the quick-release couplings 18 and the collecting container 23 are located.
  • the quick-release couplings 18 are released and the stand 27 with the base element 28 is lifted out of the floor 20 and the latter is replaced by a normal base element.
  • the cooling device can then be used at another point on the floor and over the
  • a further quick-release coupling can also be provided, which connects the outlet to another hose and further to a condensate outlet arranged in the hollow floor.
  • Fixed and adjustable reflectors or other deflecting elements for heat radiation to influence the spatial distribution of the cooling effect and possibly also deflecting elements for light can be attached to the condensate tray above the cooling element.
  • Another modification is the use of an evaporator or a Peltier element as a cooling element instead of the double spiral 16.
  • a Peltier element is superfluous - especially when using a container for the melted water, which is then only emptied occasionally -
  • the supply line 4 and the discharge line 5 for connecting the cooling element to the cooling unit in part by means of hoses, and rather allows them to be designed in whole or in part as cables and to be connected with a plug connection similar to an electrical plug connection with a suitable cooling installation, which e.g. B. can have a heat exchanger in each room, from which the heat generated by the Peltier element or several such is derived by means of cooling medium and transported to the cooling unit.
  • the stand can be provided with a flat foot, so that the cooling device can be moved freely in the room like a standard lamp.
  • Peltier element as a cooling element in a displaceable work place cooler is particularly advantageous, it is of course also possible with stationary cooling devices.

Abstract

In order to cool a room, a cooling element fitted in the ceiling region is cooled to below the freezing point, preferably to about -40 DEG C., during the cooling phases so that condensate forming thereon freezes immediately. During regeneration phases when the room is not in use, the cooling element is defrosted and the melted condensate is caught in a condensate tray beneath the cooling element and drained via a discharge. The great temperature difference between the room to be cooled and the cooling element also makes it possible to obtain a strong cooling effect with a small cooling element, especially by indirect radiation exchange between the room and the cooling element via an intermediate ceiling. In addition, the air in the room is dehumidified since water vapour is deposited on and bonded to the cooling element in the form of ice. Moreover, the cooling element itself is supported by a tray and a stand upon a floor, and detachable from the floor so that the cooling element is capable of being relocated to different locations.

Description

Verfahren und Vorrichtung zur Kühlung eines Raumes Method and device for cooling a room
Die Erfindung betrifft ein Verfahren zur Kühlung eines Raumes gemäss dem Oberbegriff des Anspruchs 1 sowie eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method for cooling a room according to the preamble of claim 1 and an apparatus for performing the method.
Es ist bekannt (s. z. B. H. Sokolean: "Kühldeckentechnologie zur Erreichung des bestmöglichen Raumkomforts", Architektur und Technik 8/92, S. 49 - 53, B+L Verlags AG, Schlieren (Schweiz) ) , Räume mittels Kühlelementen, die vorzugsweise im Deckenbereich angeordnet sind und gewöhnlich von einem in einem zentralen Kühlaggregat gekühlten Wärmetransportmedium durchflössen werden, zu kühlen. Die Kühlung erfolgt dabei durch konvektiven Wärmeaustausch des Kühlelements mit der Raumluft und vor allem durch direkten Strahlungsaustausch desselben mit den im Raum befindlichen Objekten.It is known (see BH Sokolean: "Chilled ceiling technology to achieve the best possible room comfort", Architecture and Technology 8/92, pp. 49 - 53, B + L Verlags AG, Schlieren (Switzerland)), rooms using cooling elements, preferably in the ceiling area are arranged and are usually flowed through by a cooled in a central cooling unit heat transfer medium to cool. The cooling takes place through convective heat exchange of the cooling element with the room air and above all through direct radiation exchange of the same with the objects located in the room.
Die Kühlleistung derartiger Kühlelemente wird dadurch begrenzt, dass ihre Oberflächentemperatur den Taupunkt nicht unterschreiten darf, da sich sonst während der Kühlphasen, die sich gewöhnlich mit den Benutzungszeiten des Raumes decken, Kondensat bildet. Es ist zwar vorgeschlagen worden (WO-A-91/13 294) , unter den Taupunkt zu kühlen und das entstehende Kondensat über Kondensatrinnen oder -wannen abzuleiten, doch ist davon auszugehen, dass die Bildung von Kondensat während der Benutzung des klimatisierten Raums stets störend und unerwünscht ist.The cooling capacity of such cooling elements is limited by the fact that their surface temperature must not fall below the dew point, otherwise condensate will form during the cooling phases, which usually coincide with the time the room is in use. Although it has been proposed (WO-A-91/13 294) to cool below the dew point and to drain off the resulting condensate via condensate trays or troughs, it can be assumed that the formation of condensate is always troublesome during use of the air-conditioned room and is undesirable.
Es ist auch ein Gerät zur Lufttrocknung und -kühlung bekannt (DE-A-28 02 550) , in welchem die Luft durch einen Ventilator über ein zeitweise unter den Gefrierpunkt abgekühltes Kühlelement gesaugt und dasselbe während kurzerA device for air drying and cooling is also known (DE-A-28 02 550), in which the air is sucked in by a fan via a cooling element which has cooled below freezing at times and the same for a short time
Bestätigungskopiβ Regenerationsphasen durch Heizen von niedergeschlagenem Reif befreit wird. Solche Geräte sind jedoch nicht für den Einsatz in einem zu klimatisierenden Raum geeignet und würden daher den Transport von Luft durch erzwungene Strömung bedingen, was unerwünschten Luftzug hervorrufen müsste.Confirmation copy Regeneration phases are freed of deposited frost by heating. However, such devices are not suitable for use in a room to be air-conditioned and would therefore require the transport of air by forced flow, which should cause undesirable drafts.
Da der Taupunkt bei den gewöhnlich herrschenden Luftfeuchtigkeiten bei ca. 12°C bis 15°C liegt, ist bei einem herkömmlichen im zu kühlenden Raum angeordneten Kühelelement, wenn die Bildung von Kondensat vermieden werden soll, die Differenz zwischen der zulässigen Temperatur desselben und der erwünschten Raumtemperatur von ca. 22°C sehr gering und die erzielbare Kühlleistung entsprechend bescheiden. Dadurch werden sehr grosse gekühlte Flächen erforderlich, was verhältnismässig hohe Kosten nach sich zieht und die Möglichkeiten der Raumgestaltung einschränkt.Since the dew point is around 12 ° C to 15 ° C in the prevailing atmospheric humidities, in a conventional cooling element arranged in the room to be cooled, if the formation of condensate is to be avoided, the difference between the permissible temperature thereof and the desired one is Room temperature of approx. 22 ° C very low and the achievable cooling capacity accordingly modest. This means that very large, cooled surfaces are required, which entails relatively high costs and limits the possibilities for interior design.
Hier soll die Erfindung Abhilfe schaffen. Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, schafft ein Verfahren zur Klimatisierung von Räumen, bei welchem die Temperatur des Kühlelements nicht mehr durch den Taupunkt beschränkt ist. Der Grundgedanke liegt dabei darin, das Kühlelement während sich im grossen und ganzen mit den Benutzungszeiten des klimatisierten Raumes deckenden Kühlphasen so stark abzukühlen, dass sich an demselben absetzendes Kondensat rasch vereist und dadurch kein störendes Kondenswasser entsteht. WährendThe invention is intended to remedy this. The invention, as characterized in the claims, provides a method for air conditioning rooms, in which the temperature of the cooling element is no longer limited by the dew point. The basic idea is to cool the cooling element to such an extent during the cooling phases that largely cover the times in which the air-conditioned room is used that condensate that settles on it quickly freezes up, thereby preventing annoying condensed water. While
Regenerationsphasen, die man im allgemeinen so wählen wird, dass sie ausserhalb der Benutzungszeiten liegen, wird das vereiste Kondensat abgeschmolzen und in flüssiger Form abgeleitet. Die durch die Erfindung erzielten Vorteile liegen vor allem darin, dass die Temperatur des Kühlelements beliebig tief eingestellt werden kann. Dadurch können auch mit kleinen Kühlflächen sehr hohe Kühlleistungen erzielt werden, selbst wenn der Wärmeaustausch mit dem zu klimatisierenden Raum ausschliesslich über Strahlung und allenfalls freie Konvektion erfolgt. Diese Wirkung wird noch dadurch unterstützt, dass Eis im Infrarotbereich in seinen Strahlungseigenschaften einem schwarzen Körper sehr nahe kommt und die Vereisung des Kühlelements sich auf den entscheidenden direkten oder indirekten Strahlungsaustausch mit Objekten im klimatisierten Raum durchaus günstig auswirkt. Die Kühlelemente können damit klein und einfach im Aufbau gehalten werden, wodurch sich natürlich die Kosten verringern, und spielen als Randbedingung der Raumgestaltung nicht mehr die bisherige einschränkende Rolle.Regeneration phases, which will generally be chosen so that they lie outside of the times of use, the icy condensate is melted off and drained off in liquid form. The advantages achieved by the invention lie primarily in the fact that the temperature of the cooling element can be set as low as desired. As a result, very high cooling capacities can be achieved even with small cooling surfaces, even if the heat exchange with the room to be air-conditioned takes place exclusively via radiation and, if necessary, free convection. This effect is further supported by the fact that ice in the infrared range comes very close to a black body in its radiation properties and the icing of the cooling element has a very favorable effect on the decisive direct or indirect radiation exchange with objects in an air-conditioned room. The cooling elements can thus be kept small and simple in construction, which of course reduces the costs, and no longer play the previous restrictive role as a boundary condition of the interior design.
Darüber hinaus wird noch ein weiteres Problem gelöst, das bei gattungsgemässen Verfahren der Raumklimatisierung bisher Schwierigkeiten bereitet hat und dem nur durch Austausch von Raumluft, der jedoch zusätzliche Installationen erfordert und die Gefahr der Entstehung unerwünschter Zugluft nach sich zieht, beizukommen war:In addition, another problem is solved, which has hitherto been difficult with generic methods of room air conditioning and which could only be solved by exchanging room air, which, however, requires additional installations and creates the risk of undesirable drafts.
Die Feuchtigkeit der Raumluft nimmt insbesondere bei längerer Benutzung des Raumes mit hoher Personenkonzentration rasch zu. Dies wird als unangenehm empfunden und führt oft zum Versuch, durch Oeffnen der Fenster Abhilfe zu schaffen, was jedoch gerade in den Sommermonaten oft wegen hoher Feuchtigkeit der Aussenluft das Problem noch verschärft. Die hohe Luftfeuchtigkeit kann schliesslich dazu führen, dass schon bei verhältnismässig hoher Temperatur der Kühlelemente die Gefahr von Kondensatbildung besteht und die Kühlanlage von TaupunktWächtern ganz abgestellt wird. Die Kühlung fällt somit gerade dann aus, wenn sie am dringendsten gebraucht würde.The humidity of the room air increases rapidly, especially when the room is used for a long time with a high concentration of people. This is perceived as unpleasant and often leads to attempts to remedy the situation by opening the windows, but this often exacerbates the problem, particularly in the summer months, due to the high humidity of the outside air. The high humidity can ultimately lead to the risk of even at a relatively high temperature of the cooling elements There is condensation and the cooling system is switched off entirely by dew point monitors. The cooling therefore fails when it is most needed.
Beim erfindungsgemässen Verfahren wird dagegenIn contrast, in the method according to the invention
Luftfeuchtigkeit durch die Kondensatvereisung am Kühlelement gebunden. Die Raumluft bleibt dadurch trocken, was den Komfort beträchtlich verbessert und Schwierigkeiten der beschriebenen Art gar nicht aufkommen lässt.Humidity bound by the condensate icing on the cooling element. This keeps the room air dry, which considerably improves comfort and prevents difficulties of the type described.
Im folgenden wird die Erfindung anhand von Figuren, die lediglich Ausführungsbeispiele zeigen, näher erläutert. Es zeigenThe invention is explained in more detail below with reference to figures which only show exemplary embodiments. Show it
Fig. 1 schematisch einen Schnitt durch einen Raum, der nach dem erfindungsgemässen Verfahren klimatisiert wird,1 schematically shows a section through a room which is air-conditioned by the method according to the invention,
Fig. 2a eine Draufsicht auf eine erste Ausführungsform einer erfindungsgemässen Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens,2a shows a top view of a first embodiment of an inventive device for carrying out the inventive method,
Fig. 2b einen Querschnitt längs B-B durch die Vorrichtung von Fig. 2a,2b shows a cross section along B-B through the device of Fig. 2a,
Fig. 3a eine Draufsicht auf eine zweite Ausführungsform einer erfindungsgemässen Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens,3a shows a top view of a second embodiment of a device according to the invention for carrying out the method according to the invention,
Fig. 3b einen Querschnitt längs B-B durch die Vorrichtung von Fig. 3a, Fig. 4a eine Draufsicht auf eine dritte Ausführungsform einer erfindungsgemässen Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens,3b shows a cross section along BB through the device of Fig. 3a, 4a is a plan view of a third embodiment of an apparatus according to the invention for carrying out the method according to the invention,
Fig. 4b einen Querschnitt längs B-B durch die Vorrichtung von Fig. 4a,4b shows a cross section along B-B through the device of Fig. 4a,
Ein zu klimatisierender Raum 1 (Fig. 1) enthält Wärme abstrahlende Objekte wie Personen und Geräte, die durch eine gelochte Decke 2 mit einer Kühlvorrichtung Wärme austauschen. Die Kühlvorrichtung umfasst mindesten ein Kühlelement 3, das über eine Zuleitung 4 und eine Ableitung 5 direkt oder indirekt mit einem Kühlaggregat 6 verbunden ist sowie eine senkrecht unter dem Kühlelement 3 angeordnete Kondensatwanne 7 von etwas grδsserer Fläche mit einem Ablauf 8. Die Kühlvorrichtung ist oberhalb der gelochten Decke 2 angeordnet. Es ist jedoch auch möglich, die Kondensatwanne 7 in die Decke 2 zu integrieren, z. B. so, dass sie eine Deckenplatte ersetzt. Oberhalb der Kühlvorrichtung, vorzugsweise ca. 20-30 cm vom Kühlelement entfernt, ist eine Decke oder Zwischendecke 9 aus Beton oder Gips eingezogen.A room 1 to be air-conditioned (FIG. 1) contains heat-radiating objects, such as people and devices, which exchange heat through a perforated ceiling 2 with a cooling device. The cooling device comprises at least one cooling element 3, which is connected directly or indirectly to a cooling unit 6 via a feed line 4 and a discharge line 5, as well as a condensate tray 7 arranged somewhat vertically below the cooling element 3 and having a somewhat larger surface area with an outlet 8. The cooling device is above the perforated ceiling 2 arranged. However, it is also possible to integrate the condensate pan 7 in the ceiling 2, for. B. so that it replaces a ceiling tile. Above the cooling device, preferably about 20-30 cm from the cooling element, a ceiling or false ceiling 9 made of concrete or plaster is drawn in.
Während einer Kühlphase wird das Kühlelement 3 unter den Gefrierpunkt abgekühlt, mindestens auf -5°C, vorzugsweise aber wesentlich tiefer, z. B. auf -40°C. Gewöhnlich setzt sich dann bald Kondensat auf dem Kühlelement ab, welches sofort vereist und somit gebunden wird. Die Kühlung des Raumes 1 erfolgt überwiegend durch Strahlungsaustausch über die Zwischendecke 9, die durch unmittelbaren Strahlungsaustausch mit dem vereisten Kühlelement stark abgekühlt wird, da dasselbe im Infrarotbereich einem idealen schwarzen Körper sehr nahe kommt und die von der Zwischendecke 9 ausgehende Strahlung mit hohem Wirkungsgrad absorbiert, während es selbst wegen seiner tiefen Temperatur wesentlich weniger Wärme gegen die Zwischendecke 9 strahlt.During a cooling phase, the cooling element 3 is cooled below the freezing point, at least to -5 ° C, but preferably significantly lower, e.g. B. to -40 ° C. Usually, condensate will soon settle on the cooling element, which will immediately freeze and thus become bound. The cooling of the room 1 takes place predominantly by radiation exchange via the false ceiling 9, which is strongly cooled by direct radiation exchange with the icy cooling element, since it comes very close to an ideal black body in the infrared range and the radiation emanating from the false ceiling 9 is highly efficient absorbs, while it radiates much less heat against the false ceiling 9 even because of its low temperature.
Die Zwischendecke 9 tauscht andererseits durch die gelochte Decke 2 Wärmestrahlung mit dem Raum 1, insbesondere mit den Wärme abstrahlenden Objekten in demselben aus, indem sie einen Teil der von ihnen ausgehenden Wärmestrahlung absorbiert und selbst wegen ihrer tieferen Temperatur weniger Wärme abstrahlt als sie aufnimmt. Ein Teil der die Zwischendecke 9 erreichenden Strahlung wird natürlich reflektiert und teilweise vom Kühlelement 3 absorbiert. Auch die Kondensatwanne 7 wird durch Strahlungsaustausch mit dem Kühlelement 3 abgekühlt und trägt ihrerseits durch Strahlungsaustausch mit dem Raum 1 zu dessen Kühlung bei. Allerdings darf die Temperatur an der Aussenseite der Kondensatwanne 7 nicht unter den Taupunkt sinken, da sich sonst an ihrer Unterseite Kondensat bilden würde. Der Wärmeaustausch durch Strahlung ist in Fig. 1 durch gerade Pfeile angedeutet.The false ceiling 9, on the other hand, exchanges heat radiation with the space 1, in particular with the heat-radiating objects therein, through the perforated ceiling 2 by absorbing part of the heat radiation emitted by them and even emitting less heat than it absorbs because of its lower temperature. Part of the radiation reaching the false ceiling 9 is naturally reflected and partially absorbed by the cooling element 3. The condensate tray 7 is also cooled by radiation exchange with the cooling element 3 and in turn contributes to the cooling of the space 1 by radiation exchange with the space. However, the temperature on the outside of the condensate pan 7 must not drop below the dew point, since otherwise condensate would form on its underside. The heat exchange by radiation is indicated in Fig. 1 by straight arrows.
Daneben kommt es natürlich auch zu konvektivem Wärmeaustausch des Raumes 1 vor allem mit der Zwischendecke 9, aber auch direkt mit der Kühlvorrichtung. In Fig. 1 ist dies für die aufsteigende Warmluft durch durchgezogene und für die absinkende Kaltluft durch gestrichelte gebogene Pfeile angedeutet. Die Konvektion spielt jedoch nur eine untergeordnete Rolle.In addition, there is, of course, convective heat exchange of the room 1, especially with the false ceiling 9, but also directly with the cooling device. In Fig. 1 this is indicated for the rising warm air by solid arrows and for the falling cold air by dashed curved arrows. However, convection only plays a subordinate role.
Durch den grossen Temperaturunterschied zwischen dem Kühlelement 3 und dem Raum 1, der ohne weiteres 60°C betragen kann, ist die Kühlwirkung des Strahlungsaustauschs, der bekanntlich einem T4-Gesetz folgt, sehr hoch. Dadurch kann auch mit einem kleinen Kühlelement 3 eine starkeDue to the large temperature difference between the cooling element 3 and the room 1, which can easily be 60 ° C., the cooling effect of the radiation exchange, which is known to follow a T 4 law, is very high. This means that a strong cooling element 3 can also be used
Kühlwirkung erzielt werden. Zudem bleibt die Luft im Raum 1 stets verhältnismässig trocken, da sich überschüssige Luftfeuchtigkeit auf dem Kühlelement 3 niederschlägt und vereist. Auf diese Weise stellen sich ohne weitere Massnahmen für den Raumkomfort optimale Verhältnisse ein.Cooling effect can be achieved. The air also remains in room 1 always relatively dry, because excess humidity condenses on the cooling element 3 and freezes. In this way, optimal conditions are achieved without further measures for the room comfort.
Während einer längeren Kühlphase schlägt sich verhältnismässig viel Eis auf dem Kühlelement nieder, das während einer Regenerationsphase, die man gewöhnlich in eine Zeit legen wird, in der der Raum 1 nicht benützt wird, abgetaut und abgeleitet werden muss. Gewöhnlich genügt es, zum Abtauen das Kühlaggregat abzustellen und das amDuring a longer cooling phase, a relatively large amount of ice is deposited on the cooling element, which must be defrosted and drained off during a regeneration phase, which will usually be placed in a time in which space 1 is not in use. It is usually sufficient to switch off the cooling unit for defrosting and the
Kühlelement 3 abgelagerte Eis durch Wärmeaustausch mit der Umgebung abschmelzen zu lassen, es ist aber auch möglich, durch Heizen des Kühlelements 3 eine Schnellregeneration vorzunehmen. Das abgeschmolzene Wasser wird von der Kondensatwanne 7 aufgefangen und über den Ablauf 8 abgeleitet. Nach vollständigem oder eventuell auch nur teilweisem Abschmelzen des Eises ist die Kühlvorrichtung wieder einsatzbereit.Allowing cooling element 3 to melt ice deposited by heat exchange with the surroundings, but it is also possible to carry out a quick regeneration by heating cooling element 3. The melted water is collected by the condensate pan 7 and discharged via the outlet 8. After the ice has melted completely or even partially, the cooling device is ready for use again.
Gemäss einer ersten Ausführungsform der Kühlvorrichtung (Fig. 2a,b) ist das Kühlelement 3 als Verdampfer aus Stahlblech ausgebildet, der über eine wärmeisolierte Zuleitung 4 und eine ebensolche Ableitung 5 mit dem Kühlaggregat 6 (Fig. 1) verbunden ist, das in diesem Fall als Kondensator ausgebildet ist. Durch die Zuleitung wird flüssiges Kühlmittel, z. B. Freon, in den Verdampfer geleitet, das in einem die Zuleitung 4 mit der Ableitung 5 verbindenden mäanderförmigen Durchläse 10 verdampft und dadurch das Kühlelement auf ca. -40°C abkühlt. Der Dampf wird durch die Ableitung 5 wieder dem Kühlaggregat 6 zugeleitet und dort unter Wärmeentzug kondensiert. Die unterhalb des Kühlelements 3 angeordnete Kondensatwanne 7 weist eine Aussenschale 11 aus Stahl auf, die an der Aussenseite pulverbeschichtet ist, so dass sie dort gut absorbiert, und eine in die Aussenschale 11 eingesetzte Innenschale 12 aus Polyurethan oder Steinwolle oder einem anderen Material geringer Wärmeleitfähigkeit. An der Innenseite ist sie mit einer Auskleidung aus reflektierender Metallfolie versehen. Durch den geschilderten Aufbau wird in der Regel eine Abkühlung der Aussenseite der Kondensatwanne 7 unter den Taupunkt verhindert. Falls diese Massnahmen nicht genügen, kann die Aussenschale 11 leicht geheizt werden. Zwecks erleichterter Ableitung von Kondensat ist die Kondensatwanne 7 etwas gegen den Ablauf 8 hin geneigt.According to a first embodiment of the cooling device (Fig. 2a, b), the cooling element 3 is designed as an evaporator made of sheet steel, which is connected to the cooling unit 6 (Fig. 1) via a heat-insulated supply line 4 and a similar discharge line 5, which in this case is designed as a capacitor. Liquid coolant, e.g. B. Freon, passed into the evaporator, which evaporates in a meandering passage 10 connecting the supply line 4 to the discharge line 5 and thereby cools the cooling element to approximately -40 ° C. The steam is returned to the cooling unit 6 through the discharge line 5 and condensed there with heat removal. The condensate tray 7 arranged below the cooling element 3 has an outer shell 11 made of steel, which is powder-coated on the outside so that it absorbs well there, and an inner shell 12 made of polyurethane or rock wool or another material with low thermal conductivity, which is inserted into the outer shell 11. On the inside it is lined with reflective metal foil. The structure described generally prevents the outside of the condensate pan 7 from cooling below the dew point. If these measures are not sufficient, the outer shell 11 can be easily heated. In order to facilitate the drainage of condensate, the condensate pan 7 is slightly inclined towards the outlet 8.
Zur Erleichterung des Strahlungsaustauschs des Kühlelements 3 mit dem Raum 1 über die Zwischendecke 9 ist dieTo facilitate the radiation exchange of the cooling element 3 with the space 1 via the false ceiling 9, the
Kühlvorrichtung mit Abstand unterhalb derselben angeordnet. Der oberhalb des Kühlelements 3 liegende Teil der Zwischendecke 9 wird durch Strahlungsaustausch mit demselben stark gekühlt und kühlt seinerseits den Raum 1 durch Strahlungsaustausch. Durch Wärmeleitung in der Zwischendecke 1 wird dieser Effekt unterstützt. Der Strahlungsaustausch mit der Zwischendecke 9 kann - jedenfalls in der Anfangsphase einer Kühlphase, wenn sich noch keine Eisschicht gebildet hat - weiter dadurch verstärkt werden, dass das Kühlelement 3 an der Oberseite mit einer gut absorbierenden Lackierung versehen ist. Seine der Kondensatwanne 7 zugewandte Unterseite ist dagegen vorzugsweise reflektierend ausgebildet.Cooling device arranged at a distance below the same. The part of the false ceiling 9 located above the cooling element 3 is strongly cooled by the radiation exchange with the same and in turn cools the room 1 by radiation exchange. This effect is supported by heat conduction in the false ceiling 1. The radiation exchange with the false ceiling 9 can - at least in the initial phase of a cooling phase when no ice layer has yet formed - be further enhanced by the fact that the cooling element 3 is provided with a well-absorbing coating on the top. In contrast, its underside facing the condensate pan 7 is preferably designed to be reflective.
Bei einer zweiten Ausführungsform der Kühlvorrichtung (Fig. 3a,b) ist das Kühlelement 3 als U-förmig gebogenes Stahlrohr 13 ausgebildet, durch welches im Kühlaggregat 6 (Fig. 1) auf ca. -40°C abgekühlte Sole geleitet wird. Zur Verstärkung des Strahlungsaustauschs mit der Zwischendecke 9 trägt das Stahlrohr 13 an der Oberseite eine Stahlplatte 14, mit der es verschweisst ist. Sie kann an der Oberseite mattschwarz lackiert sein.In a second embodiment of the cooling device (Fig. 3a, b), the cooling element 3 is designed as a U-shaped steel tube 13 through which in the cooling unit 6 (Fig. 1) approx. -40 ° C cooled brine is passed. To increase the radiation exchange with the false ceiling 9, the steel tube 13 carries on the top a steel plate 14 with which it is welded. It can be painted matt black on the top.
Die Kondensatwanne 7 ist prinzipiell gleich aufgebaut wie gemäss dem ersten Ausführungsbeispiel, doch ist sie an einer zu ihrer Längsrichtung parallelen schwenkbaren Achse 15 befestigt, so dass sie aus ihrer Lage unterhalb des Kühlelements 3 um ca. 90° (Pfeil) zur Seite geschwenkt werden kann. Das Kühlelement 3 liegt dann frei und kann mit Objekten im Raum 1 in direkten Strahlungsaustausch treten. Auf diese Weise kann eine besonders starke Kühlwirkung erzielt werden, wie sie z. B. zum Herunterkühlen eines überhitzten Raums zu Anfang einer Kühlphase erwünscht sein kann. Die Ränder der Kondensatwanne 7 sind etwas eingebogen, so dass ein allfälliger Rest von Kondensat beim Schwenken der Wanne nicht auslaufen kann.The condensate pan 7 is basically constructed in the same way as in the first exemplary embodiment, but it is attached to a pivotable axis 15 parallel to its longitudinal direction, so that it can be pivoted to the side by approximately 90 ° (arrow) from its position below the cooling element 3 . The cooling element 3 is then exposed and can enter into direct radiation exchange with objects in room 1. In this way, a particularly strong cooling effect can be achieved, as z. B. may be desired to cool down a superheated room at the beginning of a cooling phase. The edges of the condensate pan 7 are slightly bent, so that any residual condensate cannot run out when the pan is pivoted.
Gemäss einer dritten Ausführungsform der Kühlvorrichtung ist die Kondensatwanne 7 als flache Schale von z. B. der Form einer Kugelkalotte ausgebildet. Das Kühlelement 3 ist als zu einer Doppelspirale 16 gebogener Teil eines Kupferrohrs ausgebildet, welches im Zentrum der Kondensatwanne 7 in eine wärmeisolierte Zuleitung 4 und eine ebensolche Ableitung 5 übergeht, welche in ein weites Rohr 17 aus Stahlblech gezogen sind. Am äusseren Ende kann die Doppelspirale 16 mit einem Entlüftungsventil versehen sein. Ueber zwei Schnellverschlusskupplungen 18 schliessen an die Enden des Kupferrohrs 16 dort zwei gleichfalls wärmeisolierte Schläuche 19 an, die durch das Rohr 17 in einen zwischen einem Fussboden 20 und einem Betonboden (nicht dargestellt) liegenden Hohlboden 21 geführt und mit fest verlegten Leitungen verbunden sind, welche die Verbindung zum Kühlaggregat 6 (Fig. 1) herstellen und als Kühlmedium Sole oder Glycol führen. Ebenfalls im Zentrum der Kondensatwanne 7 ist ein Filter 22 angeordnet, an welchen ein Ablauf 8 für das abgeschmolzene Wasser anschliesst, der in einem Auffangbehälter 23 endet. Die Kondensatwanne 7 ist prinzipiell gleich aufgebaut wie gemäss dem ersten Ausführungsbeispiel. Sie trägt jedoch zusätzlich ein Leuchtelement, eine oberhalb eines Reflektors 24 umlaufende Leuchtstoffröhre 25 für indirekte Beleuchtung. Es können natürlich zusätzliche Leuchtelemente für direkte Beleuchtung vorgesehen werden.According to a third embodiment of the cooling device, the condensate pan 7 is a flat shell of e.g. B. the shape of a spherical cap. The cooling element 3 is designed as a part of a copper tube bent into a double spiral 16, which in the center of the condensate trough 7 merges into a heat-insulated supply line 4 and a similar discharge line 5, which are drawn into a wide tube 17 made of sheet steel. At the outer end, the double spiral 16 can be provided with a vent valve. Two quick-action couplings 18 connect to the ends of the copper pipe 16, there also two heat-insulated hoses 19, which through the pipe 17 into a between a floor 20 and a concrete floor (not shown) horizontal hollow floor 21 are guided and connected to fixed lines, which establish the connection to the cooling unit 6 (Fig. 1) and lead as a cooling medium brine or glycol. Also in the center of the condensate pan 7 is a filter 22, to which an outlet 8 for the melted water connects, which ends in a collecting container 23. The condensate pan 7 is basically constructed the same as in the first embodiment. However, it additionally carries a luminous element, a fluorescent tube 25 for indirect lighting that runs around a reflector 24. Of course, additional lighting elements can be provided for direct lighting.
Das Rohr 17 bildet zusammen mit einer dasselbe umgebenden Fussplatte 26 einen Ständer 27, der das Kühlelement 3 und die Kondensatwanne 7 trägt. Die Fussplatte 26 trägt an der Unterseite ein Bodenelement 28, das an verschiedenen Stellen des Fussbodens 20 eingesetzt werden kann, indem es dort z. B. ein normales Bodenelement ersetzt. Etwas oberhalb der Fussplatte 26 weist das Rohr 17 eine durch einen Deckel verschliessbare Oeffnung 29 auf, hinter welcher die Schnellverschlusskupplungen 18 sowie der Auffangbehälter 23 liegen.The tube 17 forms, together with a base plate 26 surrounding the same, a stand 27 which carries the cooling element 3 and the condensate tray 7. The foot plate 26 carries on the underside a floor element 28 which can be used at various points on the floor 20 by z. B. replaced a normal floor element. Slightly above the base plate 26, the tube 17 has an opening 29 which can be closed by a cover, behind which the quick-release couplings 18 and the collecting container 23 are located.
Bei dieser Ausführung ist es sehr leicht möglich, die Kühlvorrichtung zu versetzen, indem dieIn this embodiment, it is very easy to move the cooling device by the
Schnellverschlusskupplungen 18 gelöst und der Ständer 27 mit dem Bodenelement 28 aus dem Fussboden 20 gehoben und das letztere durch ein normales Bodenelement ersetzt wird. Anschliessend kann die Kühlvorrichtung an einer anderen Stelle des Bodens eingesetzt und über dieThe quick-release couplings 18 are released and the stand 27 with the base element 28 is lifted out of the floor 20 and the latter is replaced by a normal base element. The cooling device can then be used at another point on the floor and over the
SchnellVerschlusskupplungen 18 wieder mit wärmeisolierten Schläuchen verbunden werden, die die Verbindung zu fest verlegten Leitungen herstellen. Dies bietet die Möglichkeit, eine einzelne Kühlvorrichtung z. B. einem Arbeitsplatz zuzuordenen und sie bei Bedarf auch mit diesem zu verschieben. In der unmittelbaren Umgebung desQuick-release couplings 18 again with heat-insulated Hoses are connected, which establish the connection to permanently installed lines. This offers the possibility of a single cooling device such. B. assign a job and move it with this if necessary. In the immediate vicinity of the
Arbeitsplatzes kann dann mit verhältnismässig geringem Aufwand und u. U. wesentlich reduziertem Energieverbrauch ein angenehmes Klima hergestellt werden, ohne dass es erforderlich wäre, den ganzen möglicherweise wesentlich grösseren Raum zu kühlen. Eine Arbeitsplatzleuchte ist im beschriebenen Beispiel gleich in die dergestalt als Arbeitsplatzkühler ausgebildete Kühlvorrichtung integriert. Mit der kompakten Ausbildung der Kühlvorrichtung als Arbeitsplatzkühler wird in besonders vorteilhafter Weise von der hohen Kühlleistung, die das erfindungsgemasse Verfahren bietet, Gebrauch gemacht.Workplace can then with relatively little effort and u. U. significantly reduced energy consumption a pleasant climate can be produced without it being necessary to cool the entire possibly much larger room. In the example described, a workplace lamp is immediately integrated in the cooling device designed as a workplace cooler. With the compact design of the cooling device as a workplace cooler, use is made in a particularly advantageous manner of the high cooling capacity offered by the method according to the invention.
Die beschriebene Konstruktion kann auf vielfältige Weise abgewandelt werden. So kann statt des Auffangbehälters 23 auch eine weitere Schnellverschlusskupplung vorgesehen sein, welche den Ablauf mit einem weiteren Schlauch und weiter mit einem im Hohlboden angelegten Kondensatablauf verbindet.The construction described can be modified in a variety of ways. Thus, instead of the collecting container 23, a further quick-release coupling can also be provided, which connects the outlet to another hose and further to a condensate outlet arranged in the hollow floor.
An der Kondensatwanne können oberhalb des Kühlelements angeordnete feste und verstellbare Reflektoren oder andere Umlenkelemente für Wärmestrahlung zur Beeinflussung der räumlichen Verteilung der Kühlwirkung und eventuell auch Umlenkelemente für Licht angebracht sein.Fixed and adjustable reflectors or other deflecting elements for heat radiation to influence the spatial distribution of the cooling effect and possibly also deflecting elements for light can be attached to the condensate tray above the cooling element.
Eine weitere Abwandlung ist der Einsatz eines Verdampfers oder eines Peltier-Elements als Kühlelements anstatt der Doppelspirale 16. Ein Peltier-Element erübrigt es - vor allem bei Einsatz eines Auffangbehälters für das abgeschmolzene Wasser, der dann nur gelegentlich geleert werden muss -, die Zuleitung 4 und die Ableitung 5 zur Verbindung des Kühlelements mit dem Kühlaggregat zum Teil durch Schläuche herzustellen und erlaubt vielmehr, dieselben ganz oder teilweise als Kabel auszubilden und mit einer Steckverbindung ähnlich einer elektrischen Steckverbindung mit einer geeigneten Kühlinstallation zu verbinden, welche z. B. in jedem Raum einen Wärmetauscher aufweisen kann, von dem die von dem Peltier-Element oder mehreren solchen erzeugte Wärme mittels Kühlmediums abgeleitet und zum Kühlaggregat transportiert wird. In diesem Fall kann der Ständer mit einem flachen Fuss versehen sein, so dass die Kühlvorrichtung wie eine Stehlampe frei im Raum verschiebbar ist.Another modification is the use of an evaporator or a Peltier element as a cooling element instead of the double spiral 16. A Peltier element is superfluous - especially when using a container for the melted water, which is then only emptied occasionally - The supply line 4 and the discharge line 5 for connecting the cooling element to the cooling unit, in part by means of hoses, and rather allows them to be designed in whole or in part as cables and to be connected with a plug connection similar to an electrical plug connection with a suitable cooling installation, which e.g. B. can have a heat exchanger in each room, from which the heat generated by the Peltier element or several such is derived by means of cooling medium and transported to the cooling unit. In this case, the stand can be provided with a flat foot, so that the cooling device can be moved freely in the room like a standard lamp.
Obwohl der Einsatz eines Peltier-Elements als Kühlelement bei einem versetzbaren Arbeitsplatzkühler besonders vorteilhaft ist, ist er natürlich auch bei ortsfesten Kühlvorrichtungen möglich. Although the use of a Peltier element as a cooling element in a displaceable work place cooler is particularly advantageous, it is of course also possible with stationary cooling devices.

Claims

Patenansprüche Patent claims
1. Verfahren zur Klimatisierung eines Raumes (1) mittels mindestens eines innerhalb desselben angeordneten Kühlelements (3) , dadurch gekennzeichnet, dass Kühlphasen mit Regenerationsphasen abwechseln, wobei während einer Kühlphase jeweils die Temperatur des Kühlelements (3) derart eingestellt wird, dass allfällig sich an demselben bildendes Kondensat vereist und während einer Regenerationsphase jeweils derart, dass allfällig am Kühlelement (3) vereistes Kondensat abschmilzt.1. A method for air conditioning a room (1) by means of at least one cooling element (3) arranged inside the same, characterized in that cooling phases alternate with regeneration phases, the temperature of the cooling element (3) being adjusted during a cooling phase in such a way that any the same forming condensate and in each case during a regeneration phase such that any condensate iced on the cooling element (3) melts.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass während einer Regenerationsphase jeweils allfällig abgeschmolzenes Kondensat aufgefangen und abgeleitet wird.2. The method according to claim 1, characterized in that any melted condensate is collected and discharged during a regeneration phase.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass während einer Kühlphase jeweils die Temperatur des Kühlelements (3) auf eine Temperatur von höchstens -2°C eingestellt wird.3. The method according to claim 1 or 2, characterized in that the temperature of the cooling element (3) is set to a temperature of at most -2 ° C during a cooling phase.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass während einer Regenerationsphase jeweils das Kühlelement (3) abgeschaltet ist.4. The method according to any one of claims 1 to 3, characterized in that in each case the cooling element (3) is switched off during a regeneration phase.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Kühlelement (3) im Deckenbereich des zu kühlenden Raums (1) angeordnet ist.5. The method according to any one of claims 1 to 4, characterized in that the cooling element (3) in the ceiling area of the room to be cooled (1) is arranged.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der Wärmeaustausch des Kühlelements (3) mit dem zu kühlenden Raum (1) überwiegend durch6. The method according to claim 5, characterized in that the heat exchange of the cooling element (3) with the cooling room (1) predominantly through
Strahlungsaustausch über oberhalb des Kühlelements (3) angeordnete Flächen erfolgt .Radiation exchange takes place over surfaces arranged above the cooling element (3).
7. Kühlvorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 6, mit einem Kühlelement (3) und einer senkrecht unterhalb desselben angeordneten Kondensatwanne (7) , dadurch gekennzeichnet, dass die Aussenseite der Kondensatwanne (7) gegenüber ihrer dem Kühlelement (3) zugekehrten Innenseite thermisch isoliert ist.7. Cooling device for performing the method according to one of claims 1 to 6, with a cooling element (3) and a vertically below the same arranged condensate tray (7), characterized in that the outside of the condensate tray (7) opposite the cooling element (3) facing inside is thermally insulated.
8. Kühlvorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Aussenseite der Kondensatwanne8. Cooling device according to claim 7, characterized in that the outside of the condensate pan
(7) absorbierend ausgebildet ist.(7) is absorbent.
9. Kühlvorrichtung nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Innenseite der Kondensatwanne (7) reflektierend ausgebildet ist.9. Cooling device according to claim 7 or 8, characterized in that the inside of the condensate pan (7) is reflective.
10. Kühlvorrichtung nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass das Kühlelement (3) an der Oberseite absorbierend und an der der Kondensatwanne (7) zugewandten Unterseite reflektierend ausgebildet ist.10. Cooling device according to one of claims 7 to 9, characterized in that the cooling element (3) is absorbent on the upper side and reflective on the underside facing the condensate pan (7).
11. Kühlvorrichtung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daβs die Kondensatwanne (7) mindestens zum Teil aus dem senkrecht unterhalb des Kühlelements (3) liegenden Bereich schwenk- oder schiebbar ist .11. Cooling device according to one of claims 7 to 10, characterized in that the condensate pan (7) can be pivoted or pushed at least in part from the region lying vertically below the cooling element (3).
12. Kühlvorrichtung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass das Kühlelement (3) und die Kondensatwanne (7) von einem Ständer (27) getragen werden, welcher auf einem Fussboden (20) abstützbar ist.12. Cooling device according to one of claims 7 to 11, characterized in that the cooling element (3) and the condensate tray (7) is carried by a stand (27) which can be supported on a floor (20).
13. Kühlvorrichtung nach einem der Ansprüche 7 bis 12, dadurch gekennzeichnet, dass das Kühlelement (3) über eine Zuleitung (4) und eine Ableitung (5) , welche mindestens teilweise flexibel ausgebildet sind, mit einem Kühlaggregat (6) verbunden sind.13. Cooling device according to one of claims 7 to 12, characterized in that the cooling element (3) via a supply line (4) and a discharge line (5), which are at least partially flexible, are connected to a cooling unit (6).
14. Kühlvorrichtung nach einem der Ansprüche 7 bis 13, dadurch gekennzeichnet, dass das Kühlelement (3) als14. Cooling device according to one of claims 7 to 13, characterized in that the cooling element (3) as
Rohr, als Verdampfer oder als Peltier-Element ausgebildet ist. Pipe, as an evaporator or as a Peltier element.
EP96934299A 1995-11-03 1996-11-01 Process and device for cooling a space Expired - Lifetime EP0800638B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH311995 1995-11-03
CH03119/95A CH691405A5 (en) 1995-11-03 1995-11-03 Method and apparatus for cooling a room.
CH3119/95 1995-11-03
PCT/CH1996/000387 WO1997017576A1 (en) 1995-11-03 1996-11-01 Process and device for cooling a space

Publications (2)

Publication Number Publication Date
EP0800638A1 true EP0800638A1 (en) 1997-10-15
EP0800638B1 EP0800638B1 (en) 2003-02-12

Family

ID=4249022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96934299A Expired - Lifetime EP0800638B1 (en) 1995-11-03 1996-11-01 Process and device for cooling a space

Country Status (12)

Country Link
US (2) US5996354A (en)
EP (1) EP0800638B1 (en)
JP (1) JP3212613B2 (en)
AT (1) ATE232592T1 (en)
AU (1) AU7275696A (en)
CA (1) CA2209175C (en)
CH (1) CH691405A5 (en)
DE (1) DE59610131D1 (en)
DK (1) DK0800638T3 (en)
ES (1) ES2192232T3 (en)
PT (1) PT800638E (en)
WO (1) WO1997017576A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6916198A (en) * 1997-04-30 1998-11-24 Ernst Basler + Partner Ag Method and element for cooling an office interior
CN1175228C (en) * 1997-05-16 2004-11-10 沃克斯马特能量实业公司 High-efficiency air-conditioning system with high-volume air distribution
US6405543B2 (en) * 1997-05-16 2002-06-18 Work Smart Energy Enterprises Inc. High-efficiency air-conditioning system with high-volume air distribution
IL138045A (en) * 1998-02-27 2004-06-20 Water Master Technologies Ltd Water making apparatus
AU2003259645B2 (en) * 1998-02-27 2006-08-17 Water Master Technologies Limited Water making apparatus
US6466438B1 (en) * 2000-04-17 2002-10-15 Sui-Lin Lim Generic external portable cooling device for computers
EP1225398A3 (en) * 2001-01-18 2002-09-11 Kunze, Christian, Ecole d'ingénieurs du canton de Vaud Dehumidifier for air conditioning panels
US20070066213A1 (en) * 2002-05-17 2007-03-22 Andrew Helgeson Variable air volume time modulated floor terminal
US6945866B2 (en) * 2002-05-17 2005-09-20 Airfixture L.L.C. Method and apparatus for delivering conditioned air using pulse modulation
DE50206013D1 (en) * 2002-11-22 2006-05-04 Metallwaren Ag Heiterschen Device for heating and cooling a room, ceiling element for such a device and method for its operation
US7140426B2 (en) 2003-08-29 2006-11-28 Plascore, Inc. Radiant panel
EP1541934B1 (en) * 2003-12-08 2006-07-26 Barcol-Air Ag Cooling element, cooling device and operating method therefor
US20050183435A1 (en) * 2004-02-23 2005-08-25 Aubin Douglas E. Home cooling cycle
US8136909B2 (en) 2004-12-28 2012-03-20 Canon Kabushiki Kaisha Ink jet printing apparatus and ink processing method for same
JP5136708B1 (en) * 2012-02-29 2013-02-06 株式会社トヨックス Stand type radiation device and radiation air conditioning system
JP2015135197A (en) * 2014-01-16 2015-07-27 崇治 二枝 Radiation air conditioner
DE102014009633A1 (en) * 2014-06-27 2015-12-31 Schmid Janutin Ag Method and device for ventilation and temperature control of rooms
US10883753B2 (en) 2016-04-29 2021-01-05 King Fahd University Of Petroleum And Minerals Radiant cooling apparatus and system
JP2019143830A (en) * 2018-02-16 2019-08-29 ダイキン工業株式会社 Air-conditioning apparatus
FR3113940B1 (en) 2020-09-08 2022-08-12 Scherrer Jean Marc Condensation radiant device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498342A (en) * 1950-02-21 Pedestal type air conditioning unit
US1872728A (en) * 1931-03-19 1932-08-23 Bernard Gloekler Company Refrigerating cabinet
US2140829A (en) * 1936-06-01 1938-12-20 Air Devices Corp Air conditioning
US2251705A (en) * 1939-05-24 1941-08-05 Chrysler Corp Artistic creation for interior decoration and human comfort
US2651503A (en) * 1950-12-02 1953-09-08 Reflectotherm Inc System of radiant heat exchanging
US2708833A (en) * 1953-02-27 1955-05-24 Joseph G Nigro Mobile air conditioning means for window openings
US2835186A (en) * 1954-06-01 1958-05-20 Whirlpool Co Air conditioning system
US3611743A (en) * 1969-11-19 1971-10-12 Anthony J Manganaro Room air conditioner
US3740964A (en) * 1971-06-14 1973-06-26 Tomeco Inc Portable air conditioner
GB1596171A (en) * 1977-01-19 1981-08-19 Dantherm As Air conditioning apparatuses
US4627245A (en) * 1985-02-08 1986-12-09 Honeywell Inc. De-icing thermostat for air conditioners
US5216887A (en) * 1987-06-30 1993-06-08 Kabushiki Kaisha Komatsu Seisakusho Radiative-type air-conditioning unit
JPS646631A (en) * 1987-06-30 1989-01-11 Komatsu Mfg Co Ltd Radiation type space cooler/heater
WO1991013294A1 (en) * 1990-02-24 1991-09-05 Koester Helmut Heating and cooling arrangement in particular as a structure suspended from a room ceiling
EP0553327B1 (en) * 1991-08-20 1996-10-23 Helmut KÖSTER Cooling system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9717576A1 *

Also Published As

Publication number Publication date
CH691405A5 (en) 2001-07-13
MX9705011A (en) 1997-10-31
US5996354A (en) 1999-12-07
PT800638E (en) 2003-06-30
ATE232592T1 (en) 2003-02-15
DE59610131D1 (en) 2003-03-20
JPH10506705A (en) 1998-06-30
EP0800638B1 (en) 2003-02-12
ES2192232T3 (en) 2003-10-01
JP3212613B2 (en) 2001-09-25
US6082126A (en) 2000-07-04
DK0800638T3 (en) 2003-06-02
WO1997017576A1 (en) 1997-05-15
CA2209175A1 (en) 1997-05-15
CA2209175C (en) 2006-10-10
AU7275696A (en) 1997-05-29

Similar Documents

Publication Publication Date Title
EP0800638B1 (en) Process and device for cooling a space
DE102010021742A1 (en) Device for drying bulk material in at least one storage container
DE1476962A1 (en) Refrigerator with two thermally insulated chambers and a compressor-operated cooling device
EP1959207A1 (en) Air-handling ceiling and method for its operation
EP0887606B1 (en) Drying apparatus
EP1403589B1 (en) Air-conditioning device
EP3682778B1 (en) Tempering body arrangement and a false wall arrangement comprising such a tempering body arrangement
DE19948782C2 (en) Device for cooling the interior of a coffin
DE3206348A1 (en) Drying chamber for wood
WO2016074893A1 (en) No-frost refrigeration device
EP1600711A2 (en) Indoor snow plant
DE7904228U1 (en) VENTILATION SYSTEM
DE3142621A1 (en) METHOD FOR DEFROSTING ON AIR TREATMENT UNITS WITH A HEAT PUMP AND DEVICE FOR EXERCISING THE PROCESS
EP1541934A1 (en) Cooling element, cooling device and operating method therefor
DE1009203B (en) Dehumidifier or small air conditioner
DE3210271A1 (en) Stall for keeping animals
DE202009005518U1 (en) energy storage
DE2905884A1 (en) Window mounted air conditioning unit - has heat exchanger and compressor one end, and air channel around central heat exchanger
CH635632A5 (en) Apparatus for the washing and optional drying of laundry
DE2943251A1 (en) Coffin inside cooling plant - with twin hose to refrigerator compressor for air recirculation
DE10063227B4 (en) Dehumidifier for pneumatic braking force generator
EP0335973A1 (en) Heater/air-cooler for cabin of transport means
DE202006019471U1 (en) Fridge and / or freezer
DE19504931A1 (en) Air conditioning for room
DE854839C (en) Installation on thermally insulated walls and like

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19970705

17Q First examination report despatched

Effective date: 20000915

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59610131

Country of ref document: DE

Date of ref document: 20030320

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ZIMMERLI, WAGNER & PARTNER AG

REG Reference to a national code

Ref country code: GR

Ref legal event code: EP

Ref document number: 20030401567

Country of ref document: GR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20030429

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2192232

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031113

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20051026

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20051102

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20051103

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20051106

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20051107

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20051108

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: MC

Payment date: 20051110

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20051111

Year of fee payment: 10

Ref country code: GR

Payment date: 20051111

Year of fee payment: 10

Ref country code: AT

Payment date: 20051111

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20051114

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20051115

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20051121

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20051125

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20051219

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20060123

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061101

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061101

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061130

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070502

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20070502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070601

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070601

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20061101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20070601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070731

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061101

BERE Be: lapsed

Owner name: *BARCOL-AIR A.G.

Effective date: 20061130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20061102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071101