NL8301100A

NL8301100A - Collapsible heat insulation screen - comprises several deformable cells connected together by edge strips disposed at outer surface cell wall junctions

Info

Publication number: NL8301100A
Application number: NL8301100A
Authority: NL
Original assignee: Willemsen Antonius J M
Priority date: 1983-03-29
Filing date: 1983-03-29
Publication date: 1984-10-16

Abstract

The concertina-like collapsible screen, for heat insulation, comprises deformable, separated cells (18) adhered to each other side-by-side. At the outer surface of the screen, each cell has an edge strip (10) disposed at the juncture of two adjacent walls of the cell. The adjacent edge strips are adhered to one another by a further strip (9). The adhesion between the edge strips and the further strip can be locally interrupted.

Description

~ a l * —«... 'i ™ -1-~ a l * - «... 'i ™ -1-

Korte aanduiding: Warmte-isolerende laag en werkwijze voor „ het aanbrengen daarvanShort designation: Heat insulating layer and method for applying it

De uitvinding heeft betrekking op een warmte-isolerende laag voor het thermisch scheiden van twee aan elkaar grenzende ruimten met verschillende temperaturen. Een dergelijke warmte-isolerende laag is in diverse uitvoeringen 5 bekend, bijvoorbeeld in de vorm van een kunststofschuimlaag, die warmte-overdracht door conductie tussen de twee ruimten tegengaat. Door het aanbrengen van een dergelijke laag wordt een verhoogde thermische weerstand tussen beide ruimten aangebracht, waardoor het warmtetransport wordt bemoeilijkt.The invention relates to a heat-insulating layer for the thermal separation of two adjoining spaces with different temperatures. Such a heat-insulating layer is known in various embodiments, for example in the form of a plastic foam layer, which prevents heat transfer by conduction between the two spaces. By applying such a layer, an increased thermal resistance is applied between the two spaces, which makes heat transport more difficult.

10 In een andere uitvoering wordt wel gebruik gemaakt van10 In another embodiment use is made of

zogenaamde stralingsschermen, die in hoofdzaak werkzaam zijn Iso-called radiation screens, which are mainly active I

voor het blokkeren van warmtestraling, die een temperatuur-vereffening tussen beide ruimten tengevolge zou hebbn.for blocking heat radiation, which would result in a temperature equalization between the two spaces.

De uitvinding heeft in het bijzonder betrekking op een 15 laag, die zowel gebruik maakt van warmtestraling-reflecte-rende eigenschappen, als van de bekend slechte warmtegelei-ding van een ingesloten volume lucht.The invention relates in particular to a layer which makes use of both heat radiation reflecting properties and the known poor heat conductivity of an enclosed volume of air.

Een bekend probleem van stralingsschermen is, dat ze bij vervuiling geleidelijk aan werkzaamheid inboeten, immers, een 20 spiegelend oppervlak zal door het aanzetten van stof en vuil geleidelijk een verhoogde absorptie gaan vertonen, waardoor de effectiviteit van het scherm op den duur vermindert.A known problem of radiation screens is that they gradually lose effectiveness in case of contamination, since a reflective surface will gradually show an increased absorption due to the application of dust and dirt, so that the effectiveness of the screen decreases in the long run.

De uitvinding beoogt, de genoemde fysische mechanismen, die elk een bijdrage kunnen leveren tot de thermische 25 scheiding van ruimten toe te passen en tevens te vermijden dat de werkzaamheid van stralingsschermen. in de loop van de tijd vermindert.The object of the invention is to apply the said physical mechanisms, each of which can contribute to the thermal separation of spaces and also prevent the effectiveness of radiation screens. decreases over time.

Ter bereiking van dit doel stelt de uitvinding een warmte-isolerende laag van het in de aanhef vermelde type 30 voor, die is gekenmerkt door een uit tenminste twee aan al hun randen op de wijze van een zak met elkaar gasdicht verbonden, bijvoorbeeld als folie uitgevoerde lagen, van welke lagen tenminste die laag, welke een naar. de andere laag en de ruimte met de hoogste temperatuur gewend oppervlak 8301100 ί * -2- bezit, aan dat oppervlak warmtestraling-reflecterend is uitgevoerd.In order to achieve this object, the invention proposes a heat-insulating layer of the type mentioned in the opening paragraph, which is characterized by a gas-tight connection of at least two on all their edges, for example in the form of a foil layers, of which layers at least that layer, which one to. the other layer and the room with the highest temperature used surface has 8301100 ί * -2-, on which surface is made heat-reflecting.

Met voordeel kan de laag zodanig zijn uitgevoerd dat de zak uit tenminste drie lagen bestaat, waarvan de middelste 5 laag zowel aan de randen als in tenminste één rij punten of één lijn met tenminste een van de buitenlagen van de zak is verbonden.The layer can advantageously be designed such that the bag consists of at least three layers, the middle layer of which is connected to at least one of the outer layers of the bag both at the edges and in at least one row of points or in one line.

Een buitengewoon grote effectiviteit wordt bereikt met die uitvoering, volgens welke de zak uit drie of meer lagen 10 bestaat die op de wijze van een honingraatprofiel over rijen punten of lijnen met elkaar zijn verbonden.Extremely high effectiveness is achieved with that embodiment, according to which the bag consists of three or more layers 10 which are joined together in a honeycomb profile over rows of points or lines.

De warmte-isolerende laag volgens de uitvinding kan ook dienen voor het aanbrengen van een variabele isolatie. In dit verband kan worden gedacht aan een koelhuis in tropische 15 gebieden. Volgens de uitvinding kan ter bereiking van een variabele isolatiegraad gebruik worden gemaakt van een warmte-isolerende laag met middelen voor het variëren van de onderlinge afstand tussen de lagen.The heat insulating layer according to the invention can also serve for the application of a variable insulation. In this context, a cold store in tropical areas can be envisaged. According to the invention, in order to achieve a variable degree of insulation, use can be made of a heat-insulating layer with means for varying the mutual distance between the layers.

• Bijvoorbeeld kan gebruik worden gemaakt van een bron 20 voor medium onder een te kiezen druk die is verbonden met de ruimte in de zak(ken). Duidelijk zal zijn, dat ook een mechanische verstelling kan worden toegepast, waarbij de warmte-isolerende laag aan zijn zijden is verbonden met de corresponderende binnenvlakken van een spouwmuurconstructie 25 waarvan· de onderlinge afstand naar wens kan worden ingesteld.For example, use may be made of a source of medium 20 under a selectable pressure associated with the space in the bag (s). It will be clear that a mechanical adjustment can also be applied, in which the heat-insulating layer is connected on its sides to the corresponding inner surfaces of a cavity wall construction, the mutual distance of which can be adjusted as desired.

Voor het reeds genoemde voorbeeld van /het koelhuis in warme gebieden kan ’s nachts de isolatielaag zodanig worden ingesteld, dat de lagen op elkaar liggen, zodat de isolatiegraad slecht is. Hierdoor kan 's nachts de inhoud van het 30 koelhuis worden afgekoeld. Bij hogere temperatuur overdag, kan de onderlinge afstand tussen de lagen zo groot mogelijk worden gemaakt door de zak of zakken op te pompen of met de variabele spouwmuurconstructie mechanisch uit elkaar te bewegen, waardoor een zeer goede isolatie wordt bereikt.For the aforementioned example of / the cold store in warm areas, the insulation layer can be adjusted at night so that the layers lie on top of each other, so that the degree of insulation is poor. This allows the contents of the cold store to be cooled at night. At higher temperatures during the daytime, the spacing between the layers can be made as great as possible by inflating the bag or bags or by mechanically moving them apart with the variable cavity wall construction, thus achieving very good insulation.

35 De uitvinding strekt zich verder uit tot een werkwijze voor het aanbrengen van een warmte-isolerende laag, volgens welke werkwijze eerst aan de scheidingswand tussen de ruimten 83 01 1 0 0 i 4 -3- een tussenlaag met op het van die scheidingswand afgewende oppervlak aanwezige hechtstroken wordt gehecht en dat de zakken middels die hechtstroken aan die tussenlaag worden gehecht. Zeer praktisch is die werkwijze waarbij als tussen-5 laag stroken kleefband worden gebruikt. Dit kleefband kan van het dubbelzijdige type zijn.The invention further extends to a method for applying a heat-insulating layer, according to which method first of all an intermediate layer on the dividing wall between the spaces 83 01 1 0 0 i 4 -3- with a surface remote from that dividing wall any adhesive strips present are adhered and that the bags are adhered to said intermediate layer by means of said adhesive strips. Very practical is that method in which strips of adhesive tape are used as intermediate layer. This adhesive tape can be of the double-sided type.

In het bijzonder in het geval, waarin een warmte-isolerende laag volgens de uitvinding dient te worden aangebracht op een poreuze ondergrond, bijvoorbeeld een j 10 betonnen muur, vloer of dergelijke kan met voordeel gebruik worden gemaakt van een werkwijze, volgens welke het kleefband j met lijm aan de scheidingswand wordt gehecht.Particularly in the case where a heat insulating layer according to the invention is to be applied on a porous surface, for instance a concrete wall, floor or the like, use can advantageously be made of a method according to which the adhesive tape is attached to the partition with glue.

Tenslotte heeft de uitvinding betrekking op kleefband, dat speciaal bestemd is voor het aanbrengen voor een 15 warmte-isolerende laag volgens de onderhavige uitvinding. Dit kleefband vertoont twee zich in lengterichting naast en op afstand van elkaar uitstrekkende hechtstroken.Finally, the invention relates to adhesive tape, which is specially intended for the application of a heat-insulating layer according to the present invention. This adhesive tape has two longitudinally extending adhesive strips adjacent to and spaced from each other.

De uitvinding zal nu worden verduidelijkt aan de hand van de tekening van enkele willekeurige uitvoeringsvoorbeel- j 20 den, waartoe de uitvinding zich niet beperkt. In de tekening tonen:The invention will now be elucidated on the basis of the drawing of some arbitrary embodiments, to which the invention is not limited. Show in the drawing:

Fig. 1 een gedeeltelijk weggebroken perspectivisch aanzicht van een bouwkundige constructie, bestaande uit een opstaande spouwmuur en een vloer, onder welke vloer een 25 warmte-isolerende laag volgens de uitvinding is aangebracht;Fig. 1 is a partly broken away perspective view of an architectural construction, consisting of an upright cavity wall and a floor, under which floor a heat-insulating layer according to the invention is applied;

Fig. 2 een schematische weergave van een eerste stadium van een werkwijze volgens de uitvinding;Fig. 2 a schematic representation of a first stage of a method according to the invention;

Fig. 3 een volgend stadium, in een met fig. 2 corresponderend aanzicht; 30 Fig. 4 een dwarsdoorsnede door een onder een vloer aangebrachte isolatielaag volgens de uitvinding;Fig. 3 a next stage, in a view corresponding to FIG. 2; FIG. 4 is a cross-section through an insulating layer according to the invention applied under a floor;

Fig. 5 een schematische weergave van een isolerende laag met een honingraatprofiel;Fig. 5 is a schematic representation of an insulating layer with a honeycomb profile;

Fig. 6 een gedeeltelijk weggebroken perspectivisch 35 aanzicht van een koelhuis met variabele isolatiegraad;Fig. 6 is a partly broken away perspective view of a cold store with variable degree of insulation;

Fig. 7 een gedeeltelijk weggebroken perspectivisch aanzicht van een detail van het koelhuis volgens fig. 6>enFig. 7 is a partly broken away perspective view of a detail of the cold store according to FIG. 6 and

Fig. 8 toont twee dwarsdoorsnedes van isolerende zakken waarop aan de zijranden daarvan uitstrekkende flens-randen zijn aangeBracht.Fig. 8 shows two cross-sections of insulating bags on which flange edges extending on their side edges are provided.

830 1 1 0 0 __ 9 * -4-830 1 1 0 0 __ 9 * -4-

Fig. 1 toont een bouwkundige constructie, bestaande uit een-buitenmuur 1, een binnenmuur 2, en een daarmee verbonden vloer 3. Onder de vloer 3 bevindt zich een kruipruimte 4.Fig. 1 shows an architectural construction, consisting of an outer wall 1, an inner wall 2, and a floor 3 connected thereto. Under the floor 3 there is a crawl space 4.

Deze kruipruimte 4 is geventileerd via de spouw 5 tussen de 5 buitenmuur 1 en de binnenmuur 2 via ventilatiesleuven, resp. 6, 7.This crawl space 4 is ventilated via the cavity 5 between the outer wall 1 and the inner wall 2 via ventilation slots, respectively. 6, 7.

Onder de vloer 3 is een isolerende laag 8 aangebracht, waardoor een thermische scheiding wordt bewerkstelligd tussen de ruimte boven de vloer 2 en de kruipruimte 4. Aan de hand 10 van in het bijzonder fig. 3 zal hierna de opbouw van de isolerende laag nader worden uiteengezet.An insulating layer 8 is arranged under the floor 3, whereby a thermal separation is effected between the space above the floor 2 and the crawl space 4. On the basis of Fig. 3 in particular, the construction of the insulating layer will be explained in more detail below. set out.

Fig. 2 toont, hoe door gebruikmaking van lijm een strook 9 aan de onderzijde van de vloer daaraan wordt gehecht. De strook 9 is aan zijn onderzijde voorzien van twee 15 kleefstroken 10, 11 die vooraf van afdekband zijn voorzien, dat na het aanbrengen van de strook 9 dient te worden verwijderd voor het met de kleefstrook 10, 11 verbinden van langwerpige zakken 12. Het vooraf in de richting van de t pijlen 13 af te trekken beschermingsband' is in fig. 2 met de 20 verwijzingsgetallen 14, 15 aangeduid. De in fig. 2 getoonde zak 12 wordt in de richting van de pijlen 16 over de met een streep-stippellijn 17 aangeduide zone vastgekleefd aan de kleefstrook 11.Fig. 2 shows how a strip 9 is bonded to the underside of the floor by using glue. The strip 9 is provided on its underside with two adhesive strips 10, 11 which are provided with a covering tape in advance, which must be removed after the strip 9 has been applied in order to connect elongated bags 12 to the adhesive strip 10, 11. in Fig. 2, the protective tape to be pulled off in the direction of the arrows 13 is indicated by the reference numerals 14, 15. The bag 12 shown in Fig. 2 is adhered to the adhesive strip 11 in the direction of the arrows 16 over the area indicated by a dash-dotted line 17.

Fig. 3 toont de opbouw in gerede vorm. Duidelijk zal 25 zijn, dat voor het naast elkaar leggen van isolerende zakken 12 eerst de ene beschermingsband dient te worden verwijderd, waarna de betreffende zak wordt vastgekleefd, waarna pas de aangrenzende beschermingsband wordt verwijderd en de volgende zak kan worden aangebracht. Door het kiezen van de onderlinge 30 afstand tussen de stroken 9 kan de effectieve afstand tussen het bovenvlak en het ondervlak van de zakken 9 worden gekozen, waardoor de mate van isolatie beheersbaar is. Ter verzekering van een zeer goede stofdichtheid zijn de open einden van de zakken 12 afgedicht met dubbelzijdig kleefband 35 26.Fig. 3 shows the construction in finished form. It will be clear that, for placing insulating bags 12 next to each other, one protective tape must first be removed, after which the relevant bag is glued, after which the adjacent protective tape is only removed and the next bag can be applied. By choosing the mutual distance between the strips 9, the effective distance between the top surface and the bottom surface of the bags 9 can be chosen, whereby the degree of insulation can be controlled. To ensure very good dust tightness, the open ends of the bags 12 are sealed with double-sided tape 35 26.

Fig. 4 toont een dwarsdoorsnede door een isolerende zak 18, die bestaat uit drie lagen 19, 20, 21, welke laag 20 * t 83 0 1 1 0 0 ' . ί 4 -5“ zowel aan zijn randen als over een lijn 22 met de laag 19 verbonden is.Fig. 4 shows a cross section through an insulating bag 18, which consists of three layers 19, 20, 21, which layer 20 * 83 0 1 1 0 0 '. 4-5 "is connected to the layer 19 both at its edges and along a line 22.

Na de bespreking van de figuren 2 en 3 zal de wijze van · bevestiging aan de vloer 3 door middel van de stroken 9 met 5 kleefstroken 10, 11 geen nadere toelichting behoéven.After the discussion of Figures 2 and 3, the manner of attachment to the floor 3 by means of the strips 9 with 5 adhesive strips 10, 11 will not require further explanation.

Twee aangrenzende zakken zijn door middel van een extra strook 23 met kleefstroken 24, 25 zodanig met elkaar verbonden, dat de onderste laag 21 enigszins gestrekt zijn. Hierdoor wordt voorkomen, dat over de zijranden de isolatie 10 minder goed is. Tevens sluit de strook 23 met het daarboven gelegen deel van de lagen 21 weer een zakvormige ruimte in, die bijdraagt tot een goede isolatie.Two adjacent bags are joined together by means of an additional strip 23 with adhesive strips 24, 25 such that the bottom layer 21 is slightly stretched. This prevents the insulation 10 from being less good over the side edges. The strip 23 with the part of the layers 21 located above it also encloses a pocket-shaped space again, which contributes to good insulation.

Fig. 5 toont een warmte-isolerende laag 27, die bestaat uit zes lagen, die op de wijze van een honingraatprofiel over 15 lijnen met elkaar zijn verbonden. Na het voorafgaande zal de opbouw geen verdere toelichting behoeven. Voor deze laag 27 behoeft slechts gebruik te worden gemaakt van stroken 28 die zijn voorzien van één kleefstrook 29. Het zal duidelijk zijn dat door het kiezen van de onderlinge afstand tussen de 20 stroken 28 de dikte van de laag 27 en daarmee het isolerend vermogen naar wens kan worden gekozen.Fig. 5 shows a heat-insulating layer 27, which consists of six layers, which are joined together in 15 lines in the manner of a honeycomb profile. After the foregoing, the construction will require no further explanation. For this layer 27 it is only necessary to use strips 28 which are provided with one adhesive strip 29. It will be clear that by choosing the mutual distance between the strips 28, the thickness of the layer 27 and thus the insulating capacity wish can be chosen.

Fig. 6 toont een koelhuis 30, dat is voorzien van isolerende lagen 31. Deze isolerende lagen sluiten zakken 32 in, die op de in fig. 7 getoonde wijze door perforaties 33 25 in verbinding staan met een bron voor lucht onder een te kiezen druk. De bron 34 staat via leidingen 35 in verbinding met ruimten, die worden begrensd door enerzijds de buitenwanden 36 en anderzijds daartegen aangebrachte, geperforeerde schotten 37. Deze schotten dragen via niet 30 getekende kleefstroken de isolerende lagen 31.Fig. 6 shows a cold store 30, which is provided with insulating layers 31. These insulating layers enclose bags 32, which in the manner shown in FIG. 7 communicate through perforations 33 with a source of air under a selectable pressure. The source 34 communicates via lines 35 with spaces which are bounded on the one hand by the outer walls 36 and on the other hand by perforated partitions 37 arranged against them. These partitions carry the insulating layers 31 via adhesive strips (not shown).

Door het verhogen van de druk in de zakken 32 door corresponderende bekrachtiging van de luchtdrukbron 34 kan, zoals duidelijk zal zijn de isolerende laag worden "opgeblazen", dus dikker worden gemaakt waardoor de 35 isolatiegraad toeneemt. Omgekeerd kan door corresponderende bekrachtiging van de luchtdrukbron 34 een onderdruk in de zakken 32 worden gecreëerd, waardoor de zakken worden 830 1 1 0 0By increasing the pressure in the bags 32 by corresponding actuation of the air pressure source 34, it will be apparent that the insulating layer can be "inflated", thus thickening, thereby increasing the degree of insulation. Conversely, by corresponding actuation of the air pressure source 34, an underpressure can be created in the bags 32, causing the bags to become 830 1 1 0 0

» ♦ V»♦ Q

-6- leeggezogen en de isolatiegraad sterk kan verminderen. Aldus is een ruimte met variabele isolatiegraad verkregen, waarbij ingeval van een relatief koude omgeving het inwendige van het koelhuis de warmte naar buiten kan afgeven, terwijl op het 5 moment dat een goede isolatie vereist is, de isolatiegraad tot zijn maximale waarde kan worden opgevoerd.-6- vacuumed and can greatly reduce the degree of insulation. In this way a space with variable degree of insulation is obtained, wherein in the case of a relatively cold environment the interior of the cold store can release the heat to the outside, while at the moment that good insulation is required, the degree of insulation can be increased to its maximum value.

Fig. 8 tenslotte toont twee dwarsdoorsnedes van isolerende zakken waarop aan de zijranden daarvan uitstrekkende flens-randen 34 zijn aangebracht.Fig. 8 finally shows two cross-sections of insulating bags on which flanged edges 34 are provided on the side edges thereof.

«« 83011008301100

Claims

1. A heat-insulating layer for thermally separating two adjoining spaces of different temperatures, characterized by a layer of at least two gas-bonded layers, for example foil-formed, of at least two edges on all their edges which layers, at least that layer, which has a surface turned to the other layer and the space with the highest temperature, is heat-reflecting on that surface.

1. A heat-insulating layer for thermally separating two adjoining spaces at different temperatures, characterized by a layer of at least two glued together at least two edges on each of their edges, for example foil-shaped layers, of which at least that layer, which has a surface turned to the other layer and the space with the highest temperature, are heat-reflecting on that surface.

Heat insulating layer according to claim 1, characterized in that the bag consists of at least three layers, the middle layer of which is both on the edges and in at least one row of points or in line with at least one of the outer sheets of the bag connected.

Heat insulating layer according to claim 1, characterized in that the bag consists of at least three layers, the middle layer of which is both on the edges and in at least one row of points or in line with at least one of the outer layers of the bag connected.

Heat insulating layer according to claim 1, characterized in that the bag consists of three or more layers which are joined together in a honeycomb profile over rows of points or lines.

4. Heat insulating layer according to claims 1-3, characterized by means for varying the mutual distance between the layers.

Heat insulating layer according to claim 4, characterized by a source of medium under a selectable pressure which is connected to the space in the bag (s).

Heat insulating layer according to claim 4, characterized by a source of medium under a selectable pressure which is connected to the space in the bag (s). j

Heat insulating layer according to any one of the preceding claims, characterized by flange edges extending on the side edges thereof.

Heat insulating layer according to one of the preceding claims, characterized by its side edges! extending flange edges.

7. Heat insulating layer according to claim 6, characterized in that adhesive strips are arranged on the flange edges.

Method for applying a heat-insulating layer according to claims 1-7, characterized in that an intermediate layer with adhesive strips present on the surface facing away from said partition wall is first adhered to the dividing wall between the spaces and that the bags are attached by means of 8301100 3 f Errata. 10-1 11 1 which adhesive strips are adhered to that intermediate layer.

Method for applying a heat-insulating layer according to claims 1-7, characterized in that an intermediate layer with adhesive strips present on the surface facing away from said partition wall is first adhered to the dividing wall between the spaces and that the bags are attached by means of 8301100 -8- * # which adhesive strips are bonded to that intermediate layer.

Method according to claim 8, characterized in that strips of adhesive tape are used as the intermediate layer. lö. Method according to claim 9, characterized in that the adhesive tape is of the double-sided type.

Method according to claim 8, characterized in that strips of adhesive tape are used as the intermediate layer.

FIG. 13 is a perspective view of an insulating foldable insulating layer; Fig. 14 is a perspective view of part of a variant of the layer of FIG. 13; Fig. 15 is a partial perspective view of an accordion foldable layer 15 with mounting eyes; Fig. 16 is a perspective view showing a possible manner of suspension of the layer of FIG. 15; Fig. 17 is a perspective view of a further use of an insulating layer according to the invention; and FIG. 18 is a partly broken away perspective view of a swimming pool, wherein an inflatable insulating layer according to the invention is used as a cover.

FIG. 1 shows an architectural construction, consisting of an outer wall 1, an inner wall 2, and an associated floor 3. Under the floor 3 there is a crawl space 4. This crawl space 4 is ventilated via the cavity 5 between the outer wall 1 and the inner wall 2 via ventilation slots, resp. 6, 7. An insulating layer 8 is arranged under the floor 3, whereby a thermal separation is effected between the space above the floor 2 and the crawl space 4. On the basis of Fig. 3 in particular, the structure of the Insulating layer will be explained in more detail. Fig. 2 shows how a strip 9 is bonded to the underside of the floor by using glue. The 8301100? fi 1 !. "" · I "3rEB 1984: '4a"; {errata v * --— "" · "· * strip 9 is provided on its underside with two adhesive strips 10f 11 which are pre-covered with tape, which after application of the strip 9 has to be removed in order to connect 5 elongated bags 12 to the adhesive strip 10, 11. The protective tape to be peeled off in the direction of the arrows 13 is indicated in FIG. 2 with the reference numerals 14, 15. The bag 12 shown in the direction of the arrows 16 is glued to the adhesive strip 11 in the area indicated by a dashed-dotted line 17. Fig. 3 shows the construction in finished form. laying insulating bags 12, first the one protective tape has to be removed, after which the relevant bag is glued, after which only the adjacent protective tape is removed and the next bag can be applied By choosing the mutual distance between the strips 9, The effective distance between the top surface and the bottom surface of the bags 9 is chosen, so that the degree of insulation is controllable. To ensure very good dust tightness, the open ends of the bags 12 are sealed with double-sided adhesive tape 26. FIG. 4 shows a cross section through an insulating bag 18, which consists of three layers 19, 20, 21, which layer 20 is connected to the layer 19 both at its edges and along a line 22. After the discussion of Figures 2 and 3, the method of attachment to the floor 3 by means of the strips 9 with adhesive strips 10, 11 will need no further explanation. ;

Two adjacent bags are joined together by means of an additional strip 23 with adhesive strips 24, 25 such that the bottom layer 21 is slightly stretched. This prevents the insulation from being less good over the side edges. The strip 23 with the part of the layers 21 situated above it also encloses a pocket-shaped space again, which contributes to good insulation. Fig. 5 shows a heat-insulating layer 27, which consists of six layers, which are connected to each other in the manner of a honeycomb profile over 8301100 Errata lines. After the foregoing, the construction will require no further explanation. For this layer 27 it is only necessary to use strips 28 which are provided with one adhesive strip 29. It will be clear that by choosing the mutual distance between the strips 28 the thickness of the layer 27 and thus the insulating capacity wish can be chosen. Fig. 6 shows a cold store 30, which is provided with insulating layers 31. These insulating layers enclose bags 32, which in the manner shown in FIG. 7 communicate through perforations 33 with a source of air under a selectable pressure. The source 34 communicates via conduits 35 with spaces which are bounded on the one hand by the outer walls 36 and on the other hand by perforated partitions 37 arranged against them. These partitions carry the insulating layers 31 via adhesive strips (not shown). By increasing the pressure in the bags 32 by corresponding actuation of the air pressure source 34, as will be appreciated, the insulating layer 20 can be "inflated", thus thickening, thereby increasing the degree of insulation. Conversely, by corresponding actuation of the air pressure source 34, an underpressure can be created in the bags 32, whereby the bags are sucked empty and can greatly reduce the degree of insulation. Thus, a space with variable degree of insulation is obtained, in which in a relatively cold environment the interior of the cold store can release the heat to the outside, while at the moment that good insulation is required, the degree of insulation can be increased to its maximum value. . FIG. 8 shows a cross-section through an insulating layer 38 of the type shown in FIGS. 1, 2 and 3, on the side edges of which layer 38. flange edges 39 are provided to obtain a firm attachment. Fig. 9 shows an embodiment in which an insulating layer 40 corresponding to the embodiment according to FIG. 5 is provided with mounting flanges 41. Fig. 10 shows an insulating layer 42 consisting of 8301100 Λ * s> 3rrata arranged in zig-zag manner and joined together

43. The layer 42 is two compartments thick. Fig. 11 shows a similar configuration. A layer 44 according to the invention is also built up from zigzags-5 arranged and connected films 43 together. The layer 44 is three compartments thick, fig. 12 shows a two-walled 45, 46 cavity wall construction. An insulating layer 47 according to the invention is provided in the cavity, i.e. the space between the two walls 45 and 46. In this exemplary embodiment, the layer 47 hangs from a mounting beam 48. FIG. 13 shows an insulating layer 49, which is built up of foil parts 50 which can be moved together and which can be moved apart, the lower and the upper end of which layer 49 is provided with a beam 51. the upper part of a door frame allows good thermal insulation between two rooms with the door open. With reference to Fig. 13, it is noted in connection with Figs. 10 and 11 that the layers 42 and 44 can also be provided with a top and bottom beam, while in addition means may be present for lifting the bottom beam against the top beam , whereby a thermal insulating wall can be placed and removed as desired.

FIG. 14 shows a variant of the layer 49. The layer 52 shown in FIG. 14 is designed as one alternately wrapped film glued on corresponding fastening lines. Fig. 15 shows an accordion foldable insulating layer 53 with reinforcement strips 54 through which holes 55 are punched. The holes 55 serve for suspending the layer 53 from hooks 62, for example, in the manner shown in Fig. 16. It will moreover be clear that, instead of J hooks, a rail can also be used. ! Fig. 17 shows a shed 56 with an insulating ceiling 35 cladding layer 57.! Fig. 18 finally shows a swimming basin 58. An insulating layer 60 of the type shown in FIG. 10 j floats on the water j 59. Air can be introduced into the layer 60 via a hose 61, by means of Errata means (not shown), whereby the layer floats on the water and thus serves as a swimming pool cover with excellent insulating properties. By drawing the air out of the compartments of the layer 60, the buoyancy can be reduced such that the layer 60 as a whole drops to the bottom, so that the swimming pool is available for use. With regard to the insulating properties of this swimming pool cover in the form of the layer 60, it is noted that it has a very high resistance to cooling, in contrast to the known swimming pool covers, which necessarily only consist of a relatively thin insulating layer with correspondingly low heat resistance. Namely, too great a thickness of the relevant insulating layer would make it difficult to roll up the swimming pool cover. Known pool covers are therefore practically only effective in preventing evaporation. Conduction heat loss is hardly reduced.

Attention is drawn to the fact that the layer 60 as a swimming pool cover can of course also be rolled up and unrolled as desired. The possibility of inflation and emptying is only indicated as a practical example. It will be clear that the invention is not limited to the described and drawn exemplary embodiments. The number of applications of the insulating layer according to the invention is extremely large. Certain applications may require a special version.

With regard to Figures 15 and 16, reference is further made to the possibility of using a variant, in which not the indicated edge parts but the edge parts extending perpendicularly thereto are provided with reinforcement strips and holes. Furthermore, reference is made to the possibility of designing a sunscreen to be placed in front of a window, with a single or double layer of the type shown for instance in Fig. 10, whereby the screen can be lowered and picked up with 8301100 V £ "Errata" 8_ using known blockable lifting equipment. i 8301100 * ^ rata ”9-

In another embodiment, use is made of so-called radiation screens, which are mainly active for blocking heat radiation, which would have a temperature equalization between the two spaces as a result. The invention relates in particular to a layer which makes use of both heat radiation reflecting properties and the known poor heat conductivity of an enclosed volume of air. A known problem of radiation screens is that they gradually lose effectiveness in case of pollution, after all, a reflective surface will gradually show an increased absorption due to the application of dust and dirt, so that the effectiveness of the screen decreases in the long run. The object of the invention is to apply the said physical mechanisms, each of which can contribute to the thermal separation of spaces and also prevent the effectiveness of radiation screens from diminishing over time. In order to achieve this object, the invention proposes a heat-insulating layer of the type mentioned in the opening paragraph, which is characterized by a gas-tight connection of at least two on all their edges, for example in the form of a foil layers, of which layers at least that layer having an area 8301100 * φ \ w '-2- Errata used to the other layer and the space with the highest temperature, is heat radiation-reflecting on that surface. The layer can advantageously be designed such that the bag consists of at least three layers, the middle layer of which is connected to at least one of the outer layers of the bag both at the edges and in at least one row of points or in one line. Extremely great effectiveness is achieved with that embodiment, according to which the bag consists of three or more layers 10 which are joined together in a manner of honeycomb profile over rows of points or lines. The heat insulating layer according to the invention can also serve for the application of a variable insulation. In this context, a cold store in tropical areas can be envisaged. According to the invention, in order to achieve a variable degree of insulation, use can be made of a heat-insulating layer with means for varying the mutual distance between the layers. For example, use can be made of a medium source 20 under a selectable pressure which is connected to the space in the bag (s). It will be clear that a mechanical adjustment can also be applied, wherein the heat-insulating layer is connected on its sides to the corresponding inner surfaces of a cavity wall construction, the mutual distance of which can be adjusted as desired. For the aforementioned example of the cold store in warm areas, the insulation layer can be adjusted at night so that the layers lie on top of each other, so that the degree of insulation is poor. This allows the contents of the cold store to be cooled at night. At higher temperatures during the day, the mutual distance between the layers can be made as large as possible by pumping up the bag or bags or by mechanically moving them apart with the variable cavity wall construction, so that very good insulation is achieved.

The invention further extends to a method for applying a heat-insulating layer, according to which method first an intermediate layer with adhesive strips present on the surface remote from that partition wall is applied to the partition wall between the spaces 8301100 "3rrata" 3-. adhered and that the bags are adhered to said intermediate layer by means of said adhesive strips. Very practical is that method in which strips of adhesive tape are used as intermediate layer. This adhesive tape can be of the double-sided type. Particularly in the case in which a heat insulating layer according to the invention is to be applied on a porous surface, for instance a concrete wall, floor or the like, advantageous use can be made of a method according to which the adhesive tape with glue is attached to the partition. Finally, the invention relates to adhesive tape, which is specially intended for the application of a heat-insulating layer according to the present invention. This adhesive tape has two longitudinally extending adhesive strips adjacent to and spaced from each other. The invention will now be elucidated with reference to the drawing of some arbitrary embodiments, to which the invention is not limited. Show in the drawing: Fig. 1 is a partly broken away perspective view of an architectural construction, consisting of an upright cavity wall and a floor, under which floor a heat-insulating layer according to the invention is applied; | Fig. 2 a schematic representation of a first stage of a method according to the invention; Fig. 3 a next stage, in a view corresponding to FIG. 2;

FIG. 4 is a cross-section through an insulating layer according to the invention applied under a floor; Fig. 5 is a schematic representation of an insulating layer with a honeycomb profile; Fig. 6 is a partly broken away perspective view of a cold store with variable degree of insulation; and FIG. 7 is a partly broken away perspective view of a detail of the cold store according to FIG. 6. 8301100 Errata FIG. 8 and 9 each show a cross section through insulating layers, on the side edges of which flange edges are provided; Fig. 10 is a partial perspective view of a further embodiment of an insulating layer according to the invention; Fig. 11 a broader embodiment of the layer according to FIG. 10; Fig. 12 is a partly broken away perspective view of a cavity wall with an insulating layer;

10. Method according to claim 9, characterized in that the adhesive tape is of the double-sided type.

Method according to claim 9, characterized in that the adhesive tape is adhered to the partition with glue.

Adhesive tape for use in a method according to claim 9, 10 or 11, characterized by two longitudinally extending adhesive strips next to and at a distance from each other. <Desc / Clms Page number 1> 8301100 "L:. ^ 1 3rrata_ ~ 1" J 1 ί AJG J933 fi t ...... ... Short designation: Heat insulating layer and method for applying it insulating layer for thermally separating two adjoining spaces with different temperatures Such a heat insulating layer is known in various embodiments, for example in the form of a plastic foam layer, which prevents heat transfer by conduction between the two spaces. By applying such a layer, an increased thermal resistance is applied between the two spaces, which makes heat transport more difficult.

12. Adhesive tape for use in a method according to claim 9, 10 or 11, characterized by two adhesive strips extending longitudinally next to and at a distance from each other. j 83 0 1 1 0 0