DE102018002065A1 - Insulating element, enveloping unit formed therefrom and method for forming such a wrapping unit - Google Patents

Abstract

The invention relates to an insulating element (1), a covering unit (2) formed therefrom, and a method for forming such a covering unit (2), in particular for hot water storage, buffer storage, heat and / or cooling generators, thermal and / or cold storage for thermal insulation the same. An insulating body (3) of the insulating member (1) is formed of a rigid polymeric foam having a plurality of foam cells. Furthermore, at least a portion of an outer surface (4), an inner surface (6) and at least one of the longitudinal end faces (7, 8) of the insulating body (3) are each formed by cut surfaces of the rigid foam. Each of the cut surfaces comprises foam cells of the polymeric rigid foam cut through to a predominant area proportion.

Description

The invention relates to an insulating element for forming a wrapping unit and a wrapping unit, in particular for boilers, hot water tank, buffer storage, heat and / or cold generators, heat and / or cold storage for thermal insulation thereof comprising a plurality of such insulating elements. Furthermore, the invention also relates to a method for forming a cladding unit, in particular for boilers, hot water storage tanks, buffer storage, heat and / or cooling generators, heat and / or cold storage for the thermal insulation thereof.

For insulation or insulation purposes, the body to be enveloped or enveloped usually have a cylindrical shape on the outside thereof. In order to achieve a good insulating and insulating effect by the insulating element or the insulating elements, from which or from which the cladding unit is or will be formed, the inner surface or inside of the cladding unit should fit tightly against the outside of the body to be enveloped. For this purpose, at least the spatial form of the inner surface or inner side of the wrapping unit is to be formed or shaped in the same way.

From the EP 2 267 351 A1 is a generic trained, thermal insulation system of several juxtaposed insulating elements become known. The insulating elements consist of an insulating layer, an outer sheath and a nearly infinitely slidable closure system. The insulating layer is formed by a PU rigid foam, which is foamed in a foaming directly to the inside of the outer shell or the outer film. By the foaming process in a foaming or molding tool, the preformed insulating element is produced. For this purpose, a separate foaming or molding tool is necessary for each spatial form of the insulating element, which results in high costs for the production of such foaming or molding tool. It is not in all cases a perfect, geometric and dimensionally stable design of the insulating, in particular in the contour region, possible.

The DE 10 2006 050 939 A1 describes another way to form a heat-insulating casing for body, in particular for hot water tank. The sheath consists of a sleeve enveloping the respective body with a heat-insulating layer of an originally flat foam plate, which is provided on the outside with a cover layer of a sheath with a higher tensile strength. On the inside of the originally flat foam plate to the outer heat-insulating layer to softer layer is arranged. So that the rigid foam plate can be bent around the body, it has on its inside longitudinally extending, wedge-shaped recesses. At the free longitudinal edges of the sleeve, the longitudinal edges connecting fastening devices are provided. This heat-insulating casing has proven itself in practice, but an increased processing effort for the introduction of wedge-shaped recesses was necessary. Furthermore, a sufficient insulation effect could not be achieved in all applications.

It also describes the DE 200 02 611 U1 a thermal insulation, in particular for cylindrical hot water tank, made of a flat plate designed as weak elastic insulation. The insulating material or the insulating panels formed therefrom are made of expanded polypropylene (EPP) or expanded polystyrene (EPS) and each have groove-like recesses on their side facing the body to be insulated, which have formed during the foaming process by the tool mold. Although this eliminates the Nachbearbeitungsaufwand for incorporating the groove-shaped recesses, but it is a separate foaming or molding tool necessary to produce the plates. It is also depending on the trainee curvature and adaptation to the outer shape of the insulating body to adjust the size and cross section of the groove-shaped recesses to always after applying and curving the previously flat insulation panels groove side walls to each other to create a chimney effect in the vertical direction to avoid. This otherwise leads to a poor insulation effect.

The object of the present invention was to overcome the disadvantages of the prior art and to provide an insulating element, a cladding unit formed from a plurality of insulating elements and a method for forming such a cladding unit by means of which a user is able to produce a simple, and, above all, cost-effective shaping of the insulating elements, at least in the contact area, on the body to be insulated.

This object is achieved by the insulating element, the cladding unit formed from a plurality of insulating elements and a method for producing such a cladding unit according to the claims.

• - einen Isolierkörper mit einer Außenfläche, einer in einer Dämmschichtdicke davon distanziert angeordneten Innenfläche, einer ersten sowie einer zweiten Längsstirnseite und mit einer ersten sowie einer zweiten Querstirnseite, wobei der Isolierkörper aus einem Hartschaumstoff gebildet ist, wobei
• - der Hartschaumstoff durch einen Polymerschaumstoff, insbesondere überwiegend aus dem Werkstoff Polystyrol (PS) oder Phenolharz (PF), mit Schaumstoffzellen gebildet ist, und wobei
• - zumindest ein Teilabschnitt der Außenfläche, die Innenfläche und zumindest eine der Längsstirnseiten des Isolierkörpers jeweils durch Schnittflächen durch die Schaumstoffzellen des Hartschaumstoffes gebildet sind.

The insulating element according to the invention serves to form a cladding unit, in particular for boilers, hot water storage tanks, buffer storage tanks, heat and / or cold generators, heat and / or or cold storage for the thermal insulation of the same, and comprises

• an insulating body having an outer surface, an inner layer spaced therefrom in an insulating layer thickness, a first and a second longitudinal end side and having a first and a second transverse end side, wherein the insulating body is formed from a rigid foam, wherein
• - The rigid foam is formed by a polymer foam, in particular predominantly of the material polystyrene (PS) or phenolic resin (PF), with foam cells, and wherein
• - At least a portion of the outer surface, the inner surface and at least one of the longitudinal end faces of the insulating body are each formed by cut surfaces through the foam cells of the rigid foam.

The advantage achieved thereby is that it is cut out without high tooling costs or the insulating body to form the insulating or insulating of a previously prepared block or plate of a rigid foam by a cutting operation in accordance with predetermined and selected cross-sectional shape. This is based on commercially available blocks or plates of rigid foam, wherein in particular each of the insulating body is separated on its inner surface, at least one of the longitudinal end faces and possibly also on a portion of the outer surface in each case in the direction of its longitudinal extent. By cutting the outer contours of the insulator are made dimensionally stable than in a foam molding process. Furthermore, it can also be used more quickly and easily to changing dimensions and spatial forms of the body to be considered. In contrast to an insulating body produced in the foaming process, a closed-cell outer surface in the region of the individual cut surfaces is thus avoided. The cutting out of the insulating body or of the rigid foam block leads in the region of the cut surfaces to a predominantly open or open-pored surface structure. When using a Velcro strip, in particular a double-sided Velcro strip, for attachment of another insulating element or another insulating layer so that better adhesion to the cut surface can be constructed. This is because the adhesive can penetrate better into the open-pore structure and thus improved adhesion is achieved. By choosing the cutting process so mold costs are saved for the production of insulating. In addition, but also a higher flexibility in the production of insulating can be achieved, since only the cutting contour of the cutting device are adapted to the respective dimensions of the body to be wrapped.

Furthermore, it may be advantageous if the cut surfaces are arranged on both of the longitudinal end faces on the insulating body. This can be formed on both sides of the insulator exactly matched and close together longitudinal end faces.

Another embodiment is characterized in that at least that the inner surface forming the cut surface is formed by a portion of a hollow cylinder shell. As a result, an exact adaptation of the inner surface of the insulating body to the outer contour of the body to be wrapped can be carried out.

Another possible embodiment has the features that the material polystyrene (PS) by expanded polystyrene (EPS) or by extruded polystyrene (XPS) is formed. By choosing the material so can be used on simple and inexpensive to produce merchandise, in which even the costs incurred in the production waste can be easily and recycled.

Furthermore, it may be advantageous if the material polystyrene (PS) comprises a plurality of interconnected foam beads and each of the foam beads comprises a foam core and this particular completely surrounding foam shell and that each of the cut surfaces to a predominant area proportion of severed foam cores and severed foam shells comprises. By the cutting process, the foam cells, which are formed by the foam beads connected to each other foam beads, cut at cut surfaces. A predominant area proportion of the cut surface is formed in the region of the same by the severed foam cores and the severed foam shells. Thus, a physical surface is formed on each of the cut surfaces except the pores.

A further embodiment provides that the insulating layer thickness of the insulator seen in cross-section and in parallel alignment with respect to the transverse end faces is chosen to be substantially constant in the circumferential direction between the two longitudinal end faces or selected differently. Depending on the choice of Dämmschichtstärke so either one to the outer surface of the body to be wrapped in the radial direction offset outer contour or even an independent of the cross-sectional shape of the body to be enveloped formed Au-ßenform of the insulating and subsequently the envelope unit formed therefrom be created. Since most of the bodies to be wrapped have a cylindrical shape, the outer cross-sectional shape of the covering unit, for example, can be made polygonal, in particular square, rectangular, hexagonal or oval.

Another embodiment is characterized in that the insulating body is provided on its longitudinal end faces with a mutually opposite trained coupling device, in particular with a tongue and groove joint. As a result, in the region of the longitudinal end faces of the individual insulating body between these a sufficiently secure and heat transfer almost lossless connection point can be created.

A further preferred embodiment is characterized in that further at least one additional insulating layer is provided, which is arranged at least one additional insulating layer on the insulating body in the region of its inner surface and at least partially covering the inner surface. By providing at least one additional insulating layer on the inner surface of the insulating body, a direct contact with the body to be wrapped can thus be avoided, in particular when using the material EPS. This is particularly advantageous at higher temperatures in bodies to be wrapped, as this reduces the thermal load of the material polystyrene and can be intercepted by the additional insulating layer. In addition, however, can also be achieved depending on the choice of insulation layer an even better insulation.

Furthermore, it may be advantageous if the at least one additional insulating layer completely covers the inner surface of the insulating body. Thus, a full-surface coverage of the inner surface of the insulator and, associated therewith, sufficient protection thereof can be achieved.

In a further possible alternative embodiment, it is provided that the at least one additional insulating layer comprises a plurality of insulating layer elements and the insulating layer elements are arranged adjacent to one another and / or overlapping one another in the direction of the longitudinal extent of the insulating body between its two transverse end sides. This makes it even better to take into account the respective insulating conditions and dimensions of the body to be insulated.

Another alternative embodiment is characterized in that the at least one additional insulating layer is selected from the group of nonwovens, mats, rubber, in particular synthetic rubber, vacuum panels. Thus, the insulating layer can be easily adapted to a wide variety of application conditions. In addition, however, can also be a combination and multiple arrangement of different insulation layers on the inner surface of the insulator.

Another possible and optionally alternative embodiment has the features that the at least one additional insulating layer with respect to the material of the insulating body has a higher temperature resistance. This creates the opportunity to use the cost-effective material polystyrene, in particular EPS, and compensate for its otherwise lower temperature stability by applying the additional insulating layer so.

A further embodiment provides that the at least one additional insulating layer is connected at least in sections to the insulating body by means of a first connecting device. Thus, a pertinent structure, namely the insulating element comprising the insulating body and the at least one additional insulating layer, are created.

Another embodiment is characterized in that the first connection device is formed by a double-sided adhesive tape and / or a Velcro arrangement with mushroom band and loop tape. Thus, a full-surface connection between the insulating layer and the insulating body can be avoided while still allowing a secure hold. In addition, as compared to a full-surface connection or bonding the separation of insulating layer or insulator in the course of a subsequent disposal operation is much easier.

However, the object of the invention is achieved in particular independently by a cladding unit, in particular for boilers, hot water storage tanks, buffer storage, heat and / or cold generators, thermal and / or cold storage for thermal insulation of the same comprising a plurality of insulating elements assembled to the cladding unit. The inventively designed and manufactured insulating elements are used.

The advantage achieved thereby lies in the fact that, as a result of the multiple arrangement of the insulating elements, it is thus possible to create a cladding unit which can be produced simply and inexpensively.

A further embodiment provides that an outer cladding element is provided, which outer cladding element at least partially covers the insulating elements assembled to form the cladding unit on its outer surface. By providing an outer cladding element, the insulating elements can thus be protected from damage and, moreover, the optical appearance of the entire cladding unit can be improved.

A further preferred embodiment is characterized in that the outer cladding element is connected at least in sections by means of a second connecting device with at least one of the insulating body of the cladding unit. Thus, the outer lining element can be attached to at least one of the insulating body of the wrapping unit and held thereon.

Furthermore, it may be advantageous if the second connection device is formed by a double-sided adhesive tape and / or a Velcro arrangement with mushroom band and loop tape. Thus, a full-surface connection between the insulating layer and the insulating body can be avoided while still allowing a secure hold. In addition, as compared to a full-surface connection or bonding the separation of insulating layer or insulator in the course of a subsequent disposal operation is much easier.

• - Bereitstellen zumindest eines Blockes oder zumindest einer Platte aus einem Hartschaumstoff in Form eines Polymerschaumstoffes, insbesondere in einem überwiegendem Anteil aus dem Werkstoff Polystyrol oder Phenolharz (PF), wobei der Polymerschaumstoff eine Vielzahl von Schaumstoffzellen umfasst, und
• - Ausbilden von mehreren Isolierkörpern mit jeweils einer Außenfläche, jeweils einer in einer Dämmschichtdicke davon distanziert angeordneten Innenfläche, jeweils einer ersten sowie einer zweiten Längsstirnseite und jeweils mit einer ersten sowie einer zweiten Querstirnseite, durch Ausschneiden derselben aus dem bereitgestellten Hartschaumstoff durch dessen Schaumstoffzellen und unter Ausbildung von Schnittflächen zumindest bereichsweise an deren Außenflächen, deren Innenflächen und zumindest an einer von deren Längsstirnseiten.

The object of the invention is, however, independently of this also solved by a method for forming a cladding unit, in particular for boilers, hot water storage, buffer storage, heat and / or cold generator, heat and / or cold storage for thermal insulation thereof, by the following steps:

• - Providing at least one block or at least one plate of a rigid foam in the form of a polymer foam, in particular in a predominant proportion of the material polystyrene or phenolic resin (PF), wherein the polymer foam comprises a plurality of foam cells, and
• - Forming of a plurality of insulating bodies, each having an outer surface, each one spaced in a Dämmschichtdicke arranged inner surface, each having a first and a second longitudinal end face and each with a first and a second transverse end side, by cutting the same from the provided rigid foam by the foam cells and under training of cut surfaces at least partially on the outer surfaces, the inner surfaces and at least on one of the longitudinal end faces.

It is advantageous in the process steps chosen here, that thus without high tooling costs or the insulating body to form the insulating element or the insulating is cut out of a previously prepared block or plate of a rigid foam by a cutting operation in accordance with predetermined and selected cross-sectional shape. This is based on commercially available blocks or plates of rigid foam, wherein in particular each of the insulating body is separated on its inner surface, at least one of the longitudinal end faces and possibly also on a portion of the outer surface in each case in the direction of its longitudinal extent. By cutting the outer contours of the insulator are made dimensionally stable than in a foam molding process. Furthermore, it can also be used more quickly and easily to changing dimensions and spatial forms of the body to be considered. In contrast to an insulating body produced in the foaming process, a closed-cell outer surface in the region of the individual cut surfaces is thus avoided. The cutting out of the insulating body or of the rigid foam block leads in the region of the cut surfaces to a predominantly open or open-pored surface structure. When using a Velcro strip, in particular a double-sided Velcro strip, for attachment of another insulating element or another insulating layer so that better adhesion to the cut surface can be constructed. This is because the adhesive can penetrate better into the open-pore structure and thus improved adhesion is achieved. By choosing the cutting process so mold costs are saved for the production of insulating. In addition, but also a higher flexibility in the production of insulating can be achieved, since only the cutting contour of the cutting device are adapted to the respective dimensions of the body to be wrapped.

Furthermore, a procedure is advantageous in which the cut surfaces are respectively formed on both of the longitudinal end faces of the insulating body. This can be formed on both sides of the insulator exactly matched and close together longitudinal end faces.

A possible alternative approach provides that the material polystyrene (PS) is formed by a plurality of interconnected foam beads and each of the foam beads comprises a foam core and this particular completely surrounding foam shell and that each of the cut surfaces to a majority of cut through foam cores and severed foam shells is formed. By the cutting process, the foam cells, which are formed by the foam beads connected to each other foam beads, cut at cut surfaces. A predominant area proportion of the cut surface is in the same area of the severed foam cores and of the formed by severed foam shells. Thus, a physical surface is formed on each of the cut surfaces except the pores.

A further advantageous procedure is characterized in that further a plurality of additional insulating layers are provided and the additional insulating layers are respectively arranged on one of the insulating body in the region of the inner surface and each of these at least partially covering the inner surfaces, wherein the insulating body and the at least one additional Insulating layer is formed in each case one of the insulating elements. By providing and arranging at least one additional insulating layer on the inner surface of the insulating body, a direct contact with the body to be wrapped can thus be avoided in particular when using the material EPS. This is particularly advantageous at higher temperatures in bodies to be wrapped, as this reduces the thermal load of the material polystyrene and can be intercepted by the additional insulating layer. In addition, however, can also be achieved depending on the choice of insulation layer an even better insulation.

Also advantageous is a variant of the method in which the insulating elements are assembled circumferentially successively and / or one above the other to form a wrapping unit. After the production of the individual insulating elements, these can be assembled, depending on the size of the body to be wrapped, at least in a circumferential row one behind the other to form the covering unit. For larger heights also several insulating elements can be arranged one above the other in a further Isolierelementreihe circumferentially around the body to be insulated.

Another approach is characterized by further providing an outer cladding member and applying the outer cladding member to the outer surfaces of the insulating members assembled to the cladding unit and at least partially covering the outer surfaces of the outer cladding member. By providing and providing an outer lining element, the insulating elements can thus be protected against damage and, moreover, the optical appearance of the entire covering unit can also be improved.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

• 1 eine Umhüllungseinheit aus mehreren Isolierelementen, in schaubildlicher Darstellung und noch teilweise voneinander distanzierter Anordnung der Isolierelemente;
• 2 einen Block aus dem Hartschaumstoff mit an seiner Frontansichtsseite eingetragenen Querschnitten der auszuschneidenden Isolierkörper;
• 3 eine mögliche Querschnittsform eines Isolierkörpers, im Schnitt;
• 4 eine aus den Isolierelementen nach der 3 zusammengesetzte Umhüllungseinheit, ohne dem Außenverkleidungselement, in schaubildlicher Darstellung;
• 5 einen Kopplungsabschnitt zwischen zwei Isolierelementen, im Querschnitt;
• 6 eine weitere mögliche Ausbildung einer aus Isolierelementen mit einer anderen Querschnittsform zusammengesetzten Umhüllungseinheit, ohne dem Außenverkleidungselement, in schaubildlicher Darstellung.

In each case, in a highly simplified, schematic representation:

• 1 a cladding unit of several insulating elements, in perspective view and still partially spaced apart arrangement of the insulating elements;
• 2 a block of the rigid foam with registered on its front side view cross sections of auszuschneidendes insulator;
• 3 a possible cross-sectional shape of an insulating body, in section;
• 4 one of the insulating after the 3 assembled wrapping unit, without the outer lining element, in perspective view;
• 5 a coupling section between two insulating elements, in cross-section;
• 6 a further possible embodiment of a composite of insulating with a different cross-sectional shape wrapping unit, without the outer lining element, in perspective view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.

The term "in particular" is understood below to mean that it may be a possible more specific training or specification of an object or a method step, but not necessarily a compelling, preferred embodiment of the same or a compelling approach.

In the 1 to 5 is an insulating element 1 to form a cladding unit 2 as well as the method selected thereby with the method steps for its production and training described.

Depending on the size and dimension of the body to be wrapped at least partially, a plurality of insulating elements are preferred 1 used. The serving unit 2 can also be referred to as insulating or cladding, wherein the body to be wrapped formed eg by a boiler, hot water tank, buffer storage, heat and / or cold generator, heat and / or cold storage can be. The serving unit 2 serves for thermal insulation of the body to be wrapped. The bodies are mostly cylindrically shaped containers, which may also be provided with connections or connecting pieces. The cross-sectional shape of the body or the body in a mostly horizontal sectional plane when standing upright body need not be circular, but may also be polygonal, oval or even have a different cross-section. On the representation of the body to be wrapped was omitted for the sake of clarity.

The serving unit 2 includes several insulating elements 1 - In the present embodiment of four pieces - which can be assembled to the associated structural unit. The total cross section of the wrapping unit 2 is in the 4 shown. It should be mentioned that the extensive distribution of the insulating elements 1 does not have to be the same or symmetrical. In the circumferential direction of the wrapping unit 2 Seen, the insulating elements can 1 also have a mutually different circumferential extent.

In the following, only one insulating element will be used 1 described, the description of the other or further insulating 1 is to be transferred analogously. The insulating element 1 includes an insulating body 3 , which is formed of a predominantly rigid rigid foam. The insulator 3 is in its spatial form by an outer surface 4 , one in a Dämmschichtdicke 5 distanced from this arranged inner surface 6 , a first longitudinal front side 7 , a second longitudinal end face 8th and a first transverse end side 9 and a second transverse end side 10 bounded or limited. The longitudinal end faces 7 . 8th and / or the transverse end sides 9 . 10 may also be limited or formed by one or more sub-areas.

The rigid foam is formed by a polymer foam, in particular predominantly of the material polystyrene (PS) or phenolic resin (PF). The material polystyrene (PS) or phenolic resin (PF) may also include not yet outgassed blowing agents and / or admixtures and / or impurities in a small volume fraction or a small proportion by weight. As admixtures or additives, e.g. Flame retardants, dyes, graphite and / or UV stabilizers or the like are added and foamed in the production.

If the material polystyrene (PS) is used, this can be formed by expanded polystyrene (EPS) or by extruded polystyrene (XPS). Preferably, expanded polystyrene (EPS) is used. In the choice of polymer foam as polystyrene (PS), in particular as expanded polystyrene (EPS), this comprises a plurality of foam cells, which are each formed by interconnected foam beads. The spatial form and the size or the dimensions of the foam cells or the foam beads depends on the degree of swelling and the blowing agent used. Each of the foam beads in turn comprises a foam core and a particular this completely surrounding or enclosing foam shell.

As foams are preferably rigid, hard to brittle-hard foam plastics used with very good thermal insulation properties. These properties are achieved by the high closed-cell nature of the material, which prevents outgassing of the propellant. The materials mentioned above can be worked well with saws or other cutting devices.

The production of the insulating body 3 or the insulator 3 is done such that first a plate or a block 11 like this one in the 2 is shown diagrammatically, preferably independent of the room shape of the insulating body to be produced 3 is prepared in a known manner. The foam beads are foamed in polystyrene, for example by means of steam or other heat radiation in a simple block mold and together to form the associated unit as a block 11 connected.

The block 11 provides the basis for the subsequent steps to be performed to form the insulator 3 dar. The block 11 or the thicker plate can be foamed and then cut to length in a continuous process, for example when choosing the material phenolic resin foam in a continuous process.

The phenolic resin foam in turn has a predominantly closed-cell foam structure with foam cells. By the cutting process, the foam cells or the foam beads are severed, the cut surfaces form cutting planes. Follow each other in the longitudinal direction between the transverse end sides 9 . 10 extending cuts preferably have a straight longitudinal course. In the transverse direction, the cut surface may have a curvature.

In the area of a transverse end face or front view surface of the block 11 are possible cross sections of those from the block 11 to be manufactured insulating bodies 3 indicated. In one of the cross sections is the cut out insulating body 3 already removed and taken. The shape of the individual insulator 3 takes place such that they are not shown in more detail Cutting tool of a cutting device from the block 11 be cut out by a shape cut. The cutting tool may be formed, for example, by a band saw, a cutting wire or the like. Depending on the arrangement of the cross section of the respective from the block 11 auszuschneidenden or herauszutrennenden insulator 3 is at least the inner surface 6 , which is zuwendbar the insulating body, formed by a cut surface.

The outer surface 4 can at least partially or in sections seen in cross section over the outer circumference also be formed by one or more cutting surfaces or include these. Furthermore, at least one of the longitudinal end faces 7 . 8th but prefers both longitudinal end faces 7 . 8th , each formed by a cut surface or has this. Depending on the length of the block 11 can also be at least one of the transverse end sides 9 . 10 have a cut surface or formed by this and limited.

Due to the cutting or cutting process, each of the cut surfaces in a predominant area fraction comprises severed foam cores and severed foam shells. Depending on the degree of foaming of the foam beads, their foam cores have a foam structure with more or fewer pores or cells. Therefore, the area ratio of the cut surface, which is physically formed, has been designated as predominant. By cutting or cutting through the foam beads spatially concave depressions are formed depending on the position of the cut surface of the remaining foam shells, which are filled to a predominant proportion of the remaining foam cores.

Due to the formation of the insulating body 3 in a cutting process, which can also be referred to as a shape cut, this can in its spatial form, in particular in the region of its inner surface 6 , be adapted quickly and easily to the particular shape required of the body to be wrapped, without a change or a new production of a foaming tool is required. In most cases, the bodies to be enveloped have a cylindrical shape, whereby at least that of the inner surface 6 forming cut surface of a portion of a hollow cylinder shell is to form. Depending on the wrap angle of the insulator 3 or the insulating element formed therefrom 1 is the division and arrangement of the individual insulating element 1 the serving unit 2 in the circumferential direction around the body to be wrapped to vote and vote.

In the 5 is still shown that the insulating body 3 on its longitudinal end faces 7 . 8th with a coupling device 12 is provided for mutual coupling and connection to each other. The coupling device 12 can be formed by mutually opposed coupling members, such as a tongue and groove connection or the like. In order to achieve an even better seal in the area between the groove bottom of the groove and the longitudinal end face of the spring, an additional insulating element 13 be provided. The insulating element 13 can be formed flat profile-shaped and in a receiving groove 14 which extends from the longitudinal end face of the spring recessed into the spring, inserted and received therein. The insulating element 13 preferably has a lower stiffness than the material of the insulating body 3 to be elastically deformed. The tongue and groove connection is a kind of labyrinth seal.

The material preferably selected here polystyrene (PS), in particular expanded polystyrene (EPS), has too low a temperature resistance for hot water storage. To memory or the like in a temperature range up to 120 ° C or even above with the above-described insulators 3 to be able to wrap, is preferably at least one additional insulating layer 15 intended. The at least one additional layer of insulation 15 is on the insulating body 3 in the area of its inner surface 6 arranged and covers at least in sections, the inner surface 6 from. It is preferred by or from the additional insulating layers 15 the inner surface 6 of the insulating body 3 completely covers. The at least one additional layer of insulation 15 may be chosen from insulating elements or components or components of the group of nonwovens, mats, rubber, in particular synthetic rubber, vacuum panels or the like. Furthermore, the insulation layer elements or the components or components should also with respect to the material of the insulator 3 have a higher temperature resistance, if this does not have the necessary temperature resistance. The arrangement or formation of the insulating layer 15 can also be multi-layered by a superposition in the radial direction, wherein mutually different insulating layers 15 can be arranged or provided. This can be done in the inner surface 6 of the insulating body 3 at least one own admission be trained by an exemption.

Each of the insulators 3 comprises at least the insulating body 3 and at least one additional layer of insulation 15 on its inner surface 6 or inside.

The at least one additional layer of insulation 15 may also be formed from a combination and multiple arrangement of the components and / or components described above. That's the way it would be possible, the insulation layer elements or the components and / or components in the direction of the longitudinal extent of the insulating body 3 between his two transverse ends 9 . 10 to arrange next to each other and / or overlapping each other.

In the 1 is located at the left front insulating 1 still hinted that the at least one additional layer of insulation 15 also several insulating layer elements, in the present embodiment, three insulating layer elements 15 - 1 . 15 - 2 and 15 - 3 , may include. This example shows that the insulation layer 15 is formed of two superposed layers of mostly different insulating materials. So here is the position of the insulating layer closer to the body to be wrapped 15 in the direction of the longitudinal extent of the insulating body 3 between his two transverse ends 9 . 10 divided and seen by the insulating layer elements 15 - 1 . 15 - 2 and 15 - 3 educated. The the insulating body 3 closer position of the insulating layer 15 can be formed in one piece and continuously.

In the case of the rearmost insulating element shown almost in front view 1 is suggested as a possible variant that the insulating layer 15 also from several layers, here of two superposed layers, can be formed by mostly different insulation materials. For better visualization is closer to the body to be wrapped layer of multi-layer insulation layer 15 Most have been removed, which preferably in one piece and continuously between the two transverse end faces 9 . 10 is arranged extending. In contrast to the example described above, here is the insulating body 3 closer position of the insulating layer 15 in the direction of the longitudinal extent of the insulating body 3 between his two transverse ends 9 . 10 seen divided and formed by several other insulation layer elements 15 - 4 . 15 - 5 and 15 - 6 educated.

The number and arrangement of the insulation layer chosen here 15 is chosen only as an example and can be adapted to any requirements. Here are the insulating layer elements 15 - 1 . 15 - 2 . 15 - 3 . 15 - 4 . 15 - 5 15 - 6 in the direction of the longitudinal extent of the insulating body 3 between his two transverse ends 9 . 10 seen next to each other or arranged one behind the other. It would also be an overlapping arrangement possible. It would also be possible for several in the radial direction within the insulator 3 superimposed layers of the insulating layer 15 each of the layers of several of the individual insulating layer elements 15 - 1 . 15 - 2 . 15 - 3 . 15 - 4 . 15 - 5 15 - 6 to build.

For fixing the at least one additional insulating layer 15 on the insulating body 3 or their insulating layer elements 15 - 1 . 15 - 2 . 15 - 3 . 15 - 4 . 15 - 5 15 - 6 on the insulating body 3 may be provided not shown first connection device. Thus, the at least one additional layer of insulation 15 at least in sections, by means of the first connection device with the insulating body 3 connected and therefore held to it. The first connection device may be formed by a double-sided adhesive tape and / or a Velcro arrangement with mushroom band and loop tape.

The insulation thickness 5 of the insulating body 3 or the insulator 3 can in cross section and in parallel alignment with respect to the transverse end sides 9 . 10 seen in the circumferential direction between the two longitudinal end faces 7 . 8th be chosen essentially constant, as can be seen from the 3 and 4 can be seen.

Regardless of the cross-sectional shape of the body to be wrapped, which preferably has a substantially cylindrical shape, a different and different outer shape of the wrapping unit 2 can create the insulation thickness 5 of the insulating body 3 or the insulator 3 in cross section and in parallel alignment with respect to the transverse end sides 9 . 10 seen in the circumferential direction between the two longitudinal end faces 7 . 8th be chosen differently. So can the serving unit 2 Seen polygonal in its entire cross-section, polygonal with rounding in the corners, oval or the like may be formed. An approximately square outer cross section with rounding in the individual corner areas is in the 6 shown in simplified form. On the representation de

Are the individual insulating element 1 arranged circumferentially around the body to be wrapped around and optionally also in the region of the longitudinal end faces 7 . 8th coupled together, can be in the range of their outer sides or outer surfaces 4 an exterior cladding element 16 be provided and arranged. The exterior cladding element 16 covers the insulating elements 1 at least in sections, but preferably completely on their outer surfaces 4 from. It would also be possible, if the height of the body to be insulated is not completely clear of the insulating elements 1 can be covered and insulated, at least one further extensive series of insulating elements 1 provided. This allows the wrapping unit 2 for example, be fully formed.

The mutual connection of mutually facing longitudinal edges of the outer cladding element 16 can by means of a closure device 17 , such as cooperating terminal strips, hook fasteners, a zipper or a Velcro arrangement. The Siding element 16 may in turn have a single-layer or a multi-layered structure. Additionally or independently to the closure device 17 may further be provided a second connection device, which is also not shown in detail. The second connection device can at least partially for fastening and / or mounting of the outer lining element 16 on the or the insulating elements 1 be provided. Thus, for example, the second connecting device may be formed by a double-sided adhesive tape and / or a Velcro strip arrangement with mushroom tape and loop tape.

If a double-sided adhesive tape is selected as the connecting device, it is possible, for example, to omit full-surface bonding. This allows a recycling process and a separation of outer cladding element 16 and insulator 3 easier to do. The formation of cut surfaces on the insulating body 3 leads to a predominantly open or open-pored structure. Thus, the double-sided tape on the cut surface can build the necessary and better adhesion. A foamed in a foaming outer surface is predominantly to fully closed cell. When foaming, the adhesion of the adhesive tape is further complicated by the one or more release agents that are used, so that the component, namely the insulating body 3 , undamaged can be removed from the mold.

By the sheath process in the production and molding of the insulating body 3 from the blocks previously commercially produced in large numbers 11 Although a certain amount of waste is generated, which can be easily recycled, especially when selecting EPS, and can be incorporated into a new EPS block.

The embodiments show possible embodiments, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action by representational invention in Can the expert working in this technical field.

The scope of protection is determined by the claims. However, the description and drawings are to be considered to interpret the claims. Individual features or combinations of features from the illustrated and described different embodiments may represent for themselves inventive solutions. The task underlying the independent inventive solutions can be taken from the description.

For the sake of order, it should finally be pointed out that for a better understanding of the construction, elements have been shown partially unevenly and / or enlarged and / or reduced in size.

LIST OF REFERENCE NUMBERS

1

insulating

2

wrapping unit

3

insulator

4

outer surface

5

insulation thickness

6

palm

7

first longitudinal end side

8th

second longitudinal front side

9

first transverse end side

10

second transverse end side

11

block

12

coupling device

13

insulating element

14

receiving groove

15

damp course

16

Siding element

17

closure device

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2267351 A1 [0003]
• DE 102006050939 A1 [0004]
• DE 20002611 U1 [0005]

Claims (24)

Insulating element (1) for forming a cladding unit (2) in particular for boilers, hot water storage, buffer storage, heat and / or cold generators, heat and / or cold storage for the thermal insulation of the same, comprising - an insulating body (3) with an outer surface (4) , an inner surface (6) spaced therefrom in an insulating layer thickness (5), first and second longitudinal end faces (7, 8) and having first and second transverse end faces (9, 10), said insulating body (3) being made of rigid foam is formed, characterized in that - the rigid foam is formed by a polymer foam, in particular predominantly of the material polystyrene (PS) or phenolic resin (PF), with foam cells, and - that at least a portion of the outer surface (4), the inner surface (6 ) and at least one of the longitudinal end faces (7, 8) of the insulating body (3) in each case by cutting surfaces through the foam cells of the rigid foam Toffes are formed. Insulating element (1) after Claim 1 , characterized in that on the insulating body (3), the cut surfaces on both of the longitudinal end faces (7, 8) are arranged. Insulating element (1) after Claim 1 or 2 , characterized in that at least that the inner surface (6) forming cut surface is formed by a portion of a hollow cylinder shell. Insulating element (1) according to one of the preceding claims, characterized in that the material polystyrene (PS) is formed by expanded polystyrene (EPS) or by extruded polystyrene (XPS). Insulating element (1) according to one of the preceding claims, characterized in that the material polystyrene (PS) comprises a plurality of interconnected foam beads and each of the foam beads comprises a foam core and this particular completely surrounding foam shell and that each of the cut surfaces to a predominant area ratio cut through foam cores and severed foam shells. Insulating element (1) according to one of the preceding claims, characterized in that the insulating layer thickness (5) of the insulating body (3) in cross-section and in parallel alignment with respect to the transverse end sides (9, 10) seen in the circumferential direction between the two longitudinal end faces (7, 8) is chosen substantially constant or is chosen differently. Insulating element (1) according to one of the preceding claims, characterized in that the insulating body (3) is provided on its longitudinal end faces (7, 8) with a coupling device (12) which is designed to be diametrically opposed to one another, in particular with a tongue and groove connection. Insulating element (1) according to one of the preceding claims, characterized in that further at least one additional insulating layer (15) is provided, which is arranged at least one additional insulating layer (15) on the insulating body (3) in the region of its inner surface (6) and at least in sections the inner surface (6) covers. Insulating element (1) after Claim 8 , characterized in that the at least one additional insulating layer (15) completely covers the inner surface (6) of the insulating body (3). Insulating element (1) after Claim 8 or 9 , characterized in that the at least one additional insulating layer (15) comprises a plurality of insulating layer elements (15-1, 15-2, 15-3, 15-4, 15-5 15-6) and the insulating layer elements (15-1, 15-6) 2, 15-3, 15-4, 15-5 15-6) in the direction of the longitudinal extent of the insulating body (3) between its two transverse end faces (9, 10) are arranged side by side and / or overlapping each other. Insulating element (1) according to one of Claims 8 to 10 , characterized in that the at least one additional insulating layer (15) is selected from the group of nonwovens, mats, rubber, in particular synthetic rubber, vacuum panels. Insulating element (1) according to one of Claims 8 to 11 , characterized in that the at least one additional insulating layer (15) with respect to the material of the insulating body (3) has a higher temperature resistance. Insulating element (1) according to one of Claims 8 to 12 , characterized in that the at least one additional insulating layer (15) is connected at least in sections by means of a first connecting device with the insulating body (3). Insulating element (1) after Claim 13 , characterized in that the first connecting device is formed by a double-sided adhesive tape and / or a Velcro arrangement with mushroom band and loop tape. Enclosure unit (2), in particular for boilers, hot water storage, buffer storage, heat and / or cold generator, heat and / or cold storage for thermal insulation of the same comprising a plurality of the enclosure unit (2) composite insulating elements (1), characterized in that the insulating elements (1) are designed according to one of the preceding claims. Enclosure unit (2) after Claim 15 , characterized in that an outer cladding element (16) is provided, which outer cladding element (16) at least partially covers the insulating elements (1) assembled to the cladding unit (2) on its outer surface (4). Enclosure unit (2) after Claim 16 , characterized in that the outer lining element (16) is connected at least in sections by means of a second connecting device with at least one of the insulating body (3) of the wrapping unit (2). Enclosure unit (2) after Claim 17 , characterized in that the second connecting device is formed by a double-sided adhesive tape and / or a Velcro arrangement with mushroom tape and loop tape. Method for forming an enclosure unit (2), in particular for boilers, hot water storage tanks, buffer storage, heat and / or cold generators, heat and / or cold storage for the thermal insulation thereof, in particular using the enclosure unit (2) according to one of Claims 13 to 18 comprising the following steps: - providing at least one block (11) or at least one plate of a rigid foam in the form of a polymer foam, in particular in a predominant proportion of the material polystyrene (PS) or phenolic resin (PF), the polymer foam having a plurality of foam cells comprising, and - forming a plurality of insulating bodies (3), each having an outer surface (4), one each in a Dämmschichtdicke (5) spaced therefrom arranged inner surface (6), respectively a first and a second longitudinal end face (7, 8) and in each case with a first and a second transverse end face (9, 10), by cutting them out of the provided rigid foam through its foam cells and forming cut surfaces at least partially on their outer surfaces (4), their inner surfaces (6) and at least one of their longitudinal end faces (7 , 8th). Method according to Claim 19 , characterized in that in each case on both of the longitudinal end faces (7, 8) of the insulating body (3), the cut surfaces are formed. Method according to Claim 19 or 20 , characterized in that the material polystyrene (PS) is formed by a plurality of interconnected foam beads and each of the foam beads comprises a foam core and this particular completely surrounding foam shell and that each of the cut surfaces to a majority of divided foam cores and severed foam shells formed becomes. Method according to one of Claims 19 to 21 Characterized in that further a plurality of additional layers of insulation (15) are provided, and the additional insulation layers (15) each on one of the insulating body (3) in the region of its inner surface (6) are arranged, and of these in each case at least in sections, the inner surfaces (6) are covered, wherein the insulating body (3) and the at least one additional insulating layer (15) each one of the insulating elements (1) is formed. Method according to one of Claims 19 to 22 , characterized in that the insulating elements (1) are assembled circumferentially successively and / or one above the other to form a wrapping unit (2). Method according to one of Claims 19 to 23 characterized in that there is further provided an outer lining element (16) and the outer lining element (16) is applied to the outer surfaces (4) of the insulating elements (1) assembled to the enveloping unit (2) and the outer surfaces (4) of the outer lining element (16) be covered at least in sections.

Images