SI9300612A - Fashion piece from more hulls and device and procedure for placing flexible isolative plates between hulls of fashion piece - Google Patents

Abstract

In order to achieve effective thermal insulation, a multi-shell formed piece, in particular a pipe (1) for restoring chimneys, having at least two coaxially disposed, spaced-apart walls (2, 3) with a piece of insulating material (4) made of rock wool provided therebetween is, with manufacture and design being simple, configured such that the insulating material (4) consists of at least one bent insulating plate (5) which is preferably made of trock wool and has a largely constant cross section. Further, the invention proposes a device for disposing said insulating plates (5) and a corresponding process. <IMAGE>

Description

Multi-hole shaped piece and preparation and procedure for installing flexible insulating panels between the walls of the shaped piece

The invention relates to a multi-shell shaped piece, in particular to a chimney restoration tube with at least two mutually coaxially extending and spaced walls, between which a thermal insulating agent is mounted. The present invention further relates to a device for mounting flexible insulating panels between coaxially extending and spaced walls of multi-shell shaped pieces. Finally, the invention relates to the invention for a method for installing flexible insulating panels between the walls of multi-shell shaped pieces, in particular between the walls of two-pipe pipes, preferably between the pipes for stone for restoring fireplaces, using the device according to the invention.

The multilayer style pieces in question were known many years ago in a wide variety of formats. These are mainly chimney pieces. Just refer to DE-OS 19 22 581 and DE-OS 31 39 338 here for example.

For the fascia known from DE-OS 19 22 581, there is an insulation of three mineral wool shell pieces, which complement each other in the circumferential direction of the tubular shell and are loosely inserted into the annular groove between the walls of the fascia part, leaving the inner wall oz. insert the inner tube after pre-installing the insulation. Alternatively, it is proposed here to connect the insulation to the outer wall in terms of a pre-fabricated component. The shell sections used as insulation, however, are expensive to produce and relatively large in size, again causing high costs for packaging, transport and storage. In addition, such shell sections often have a multimeter thickness tolerance and, therefore, need to be grinded most of the time so that their outer surfaces have a specified dimension allowing the shell sections to be inserted between the walls of the shaped bodies. This results in further manufacturing and installation costs.

The shape piece, known from DE-OS 31 39 338, is also intended for the construction of chimneys, where the intermediate space between the walls of the shape pieces is filled with mineral wool strips. The strips are initially loosely laid on the inside of the outer jacket of the face piece and then lightly covered from the inside by thin sheet metal panels projecting outwardly over the face piece. After their installation, sheet plates form a kind of shafts whose opening is at least slightly larger than the cross-section of the inner walls or. of inner tubes to be inserted. The sheet shaft thus created achieves the insertion of the inner tube on the one hand and the compression of the insulating layer on the other. After insulation is introduced, the sheet metal is again pulled out so that the insulating layer fits well on the walls with ring fillings filled with it.

The well-known style pieces previously described have inherent disadvantages in several respects. A common problem with such shaped pieces is always the preforming and the placement of the insulating material. In the technical aspect, pipe shells and / or pipes are represented. Mineral wool tubular sections known in the art are the best known solution so far, because of the fiber position that is possible there and transversely to the heat flux to be reduced, the resistance of this insulating layer to heat transfer is greatest. The aforementioned cost disadvantages in the production-technical and transport aspects, respectively. however, in terms of storage, it should be leased in order to maintain that advantage.

It is an object of the invention therefore to form and formulate a multi-shell shaped piece of the type in question and to shape it further in order to achieve good insulation performance at low manufacturing and simple construction. Furthermore, a suitable device must be provided for placing the insulating material between the coaxially extending and spaced apart walls of the multi-shell shaped pieces according to the invention. Finally, a method for mounting an insulating substance between the walls of a multi-shell shaped piece according to the invention using the device of the invention should be provided.

The multi-shell shaped piece according to the invention solves a previous problem with the features of the first patent claim. According to it, the multi-shell shaped piece is characterized by the fact that the insulating material consists of at least one bent and preferably stone wool fabricated insulating panel which is at least largely of constant cross-section.

In the manner in accordance with the invention, it has been recognized that the spatial advantages of insulating panels pertaining to transport can be combined with the advantages of thermally technically advantageous insulating panels or. of the insulating tubes by initially flexing the flat insulating panels and placing them as insulation between the walls of the shaped piece referred to and which is also flexed into the tube. However, the quality of the insulating panels should be chosen so that when the insulating panel is bent it does not break, which may be the case, for example. achieved by the appropriate choice of raw density and by unilaterally gluing the net. Due to the bent insulation board, the flow of fibers is also parallel to the surfaces of the walls to be insulated and thus transversely to the heat flow. This, and with the cross-section of the insulating panels, which is at least largely constant, achieves the best resistance to heat conduction in the installed state.

Such shaped pieces are particularly suitable for the subsequent renovation of existing chimneys, which is increasingly required by the market, as energy-efficient boilers with good combustion and low temperature are increasingly used. With such boilers, e.g. for underfloor heating, the temperature of the waste gas lies below the dew point, so that the internal walls of the insufficiently insulated chimney can condense water, which can make them moist and, in addition, no satisfactory flue gas discharge.

In view of the particularly effective thermal insulation, it is further preferred that the insulating material is at least circumferentially formed in one piece, that is, it exists in the circumferential direction from a single insulating panel. The insulating panel should then be chosen with such dimensions that the projecting edges of the insulating panel pivot axially to each other and thus form an insulating tube. In order that the critical contact area does not represent a thermal bridge even with at least insignificant measurement tolerances, the contacting edges may preferably be made obliquely so that the insulating material overlaps at least partially the adjacent edges. In this case, the insulating panel may have a trapezoidal cross-section in the longitudinal direction. The resulting tolerances on the edges are thus harmless, since a sufficient degree of overlap of the wedge edges is given. It would also be conceivable that the insulating plate would be formed as a tube shell, preferably tangentially extending along the inner wall of the tube shell, to handle the issue of tolerance even in the case of tube shells in a preferred manner.

At that time, the thickness of the insulating material or the insulating material could be chosen. insulating panels so that there is some air between the walls of the piece and the insulating material. In view of the particularly high degree of insulation efficiency, it is preferable that the insulating material is at least articulated, and possibly siloscale, that is, in at least slightly compressed condition, positioned between the walls of the shaped piece. In the case of silo locking the insulating material between the walls of the piece, it is further ensured that the insulating material cannot slip but is wedged between the walls.

If the walls of the fascia, especially when inserting the insulating material, already have the correct distance from each other, that is, they are arranged coaxially, the walls could be kept at a constant distance from each other by means of shutters, spacers or the like, which would preferably extend here in between at one end and the walls would firmly connect to each other. Similarly, the walls could only take their co-axial position when installing the insulating material, so that the walls were held with the insulating material alone, at least to a large extent, invariably within one another. The latter option, however, requires a greater production and technical effort, since the walls or walls must be adhered to during mounting. pipes in coaxial arrangement.

In view of the preparation according to the invention for installing flexible insulating panels between coaxially extending and mutually spaced walls of multi-shell shaped pieces, in particular the shaped pieces according to the invention, the aforementioned task is solved by the features of claim 9. It provides for internal tools that can be fitted from the outside or from the inside to the free end of each inner wall of the cutter, and an external tool that can be fitted from the outside or from the inside to the corresponding free end of each outer wall of the cutter, wherein the inner tool and the outer tool in the upturned state are at least substantially co-located with one another. In other words, the inner tool and the outer tool of the device according to the invention form, in the suspended state, a kind of extension of the walls of a shaped piece, which must be insulated between the walls. This extension finally serves on one side for bending and on the other for inserting the insulating board and then accommodating the insulating panel in the space created.

With regard to the construction of the inner tool, it is particularly advantageous to attach the inner tool from the inside to the free end of the inner wall if the inner tool preferably has an extending ridge, a thickening or the like, which is assigned two functions simultaneously. On the one hand, this outer ridge is intended as a stop to limit the plug movement of the inner tool, and on the other hand, it serves as a gateway to the inner wall of the shaped piece, effectively avoiding pinching of the insulating plate on a more or less sharp edge. The outer ridge or. the thickening or the like is further advantageously dimensioned such that it extends beyond the thickness of the inner wall of the shaped piece from the inner tool and thus represents a continuously extending circumference. The plugging of the insulating plate is thus effectively prevented.

In a further preferred manner, the inner tool extends in the direction facing away from the shaped piece from the area of the outer tool. Therefore, it serves as an internal tool with its area extending from the body, especially with the area of the external tool explained later, to assist in the design and thus as a backing for insulating panels.

In order that the insulating board to be fitted can also be easily inserted into the space between the walls of the fitting, the inner tool has a smooth outer surface which serves as a sliding surface. The same applies to the inner surface of the external tool.

In a particularly preferred manner, the external tool is made in a funnel-shaped manner so that the insulated plate is pushed straight into the area between the walls of the shaped piece. When designing an external tool in the sense that it is planted from the inside to the free end of the outer wall, it is particularly advantageous if the area extending towards the free end of the external tool forms a kind of plug-in restriction with its wall. backrest. Then no more special elements are needed to serve as a backstop. In the case of external tools, in the sense that they are pushed from the outer to the free end of the outer wall, an inwardly facing ridge is required, which on the one hand forms a stop for nautical movement, and on the other, a passage leading to the insulating material or. insulating panel over free edge of outer wall.

The end of the external tool, which faces away from the funnel-shaped area, extends in a further preferred manner from the inside to the outer wall somehow in the region between the outer wall and the inner wall of the cutter, so that this area of the external tool fully serves as a sliding tool with insulating substance. Correspondingly, the interior wall of this area is executed smoothly.

The method according to the invention for installing bent insulating panels between the walls of a multi-shell shaped piece according to the invention, especially between the walls of two-pipe pipes, preferably fireplace pipes for restoring fireplaces using the device according to the invention for inserting insulating panels, is characterized by the features of claim 13. According to it, the process according to the invention has the following procedural steps.

First, the external tool, which serves as a guide, is attached to the cutter. Then, the internal tool, which serves as a backing and for bending the insulating board, is mounted on a piece or piece. inserts into the fittings. The sequence of the contact or the insertion of internal tools and external tools can be replaced without further ado. The external tools and the internal tools together serve to guide the two sides and, if necessary, to compress the insulating panels.

In the next step of the process, the insulating plate is bent around the inner tool. This is followed by the rolling of an insulating plate, which was bent on the inner tool, into the area between the walls of the piece. As mentioned previously, external tools and internal tools serve to guide and, if necessary, to thicken or, in particular, to thicken. squeezing the insulating board while boiling. The thickening of the insulating panel shall in any case be carried out when the insulating panel to be inserted is in an uncut state thicker than the width of the space created between the walls of the shaped piece. After inserting the insulating board or. insulating panels remove internal tools and external tools. The fittings according to the invention are made.

Finally, it is further advantageous to bend as many insulating panels of the device according to the invention and to insert them into the space provided between the walls until the space between the walls is completely filled over the entire length of the shaped piece. In this case, the insulating panels may optionally be compressed in the longitudinal direction of the shaped piece when bent. However, there are now various possibilities for the teaching of the present invention to be implemented in a preferred manner and further developed. Claims that depend on claims 1, 9 and 13 and, on the other hand, the following explanation of embodiments of the invention by drawing should be noted. In connection with the interpretation of a preferred embodiment of the invention based on the drawing, generally preferred embodiments and further embodiments of the teachings are also explained. In the drawing, FIG. 1 is an exemplary embodiment of a fascia piece according to the invention in the form of a two-pipe tube in cross-sectional and schematic view, FIG. 2 is an object of FIG. 1 is a schematic cross-sectional view along line II-II; 3 is an object of FIG. 2 in a developed lateral view in a schematic view, and FIG. 4 is a schematic cross-sectional view of a device according to the invention for installing flexible insulating panels between coaxially extending and spaced apart walls of multi-shell shaped pieces, in FIG. 1 of the presented style piece.

FIG. 1 shows a two-piece shaped piece according to the invention, which is specifically a two-tube tube 1. This tube 1 has two co-extending and spaced apart walls 2,3, as well as insulating material 4 placed between the walls 2.

In the manner according to the invention, there is an insulating material 4 made of bent insulating panels 5 with a cross-section that is largely permanent. In the embodiment chosen here, the insulating panels 5 are made of stone wool.

In FIG. 2 shows in a schematic manner that the fibers of the stone wool exhibit a preferred orientation, namely, uniform orientation. In this case, the fibers 6 run parallel to the surface of the insulating panels, so that they are also somehow parallel to the surfaces of the walls 2, 3 and thus flow transversely to the heat flow shown in FIG. 2 indicated by arrows 7.

In the embodiment illustrated in FIG. 1 and 2, the insulating material is circumferentially made in the circumferential direction, that is, it exists in the circumferential wall from a single insulating plate 5. In FIG. 2, it is at least implied that the axially extending edges 8 of the insulating plate 5 are in contact with each other, the two edges 8 being obliquely obliquely trimmed to ensure that the insulating material 4 in the region of the edges 8 which is adjacent to each other. second, in the case of tolerance equalization, it always overlaps at least slightly. FIG. 2 should at the same time be a cross-section through a tube shell, showing a tangentially longitudinal projection extending about its inner wall.

FIG. 3 clearly illustrates that the insulating plate 5 has a trapezoidal cross-section in the longitudinal direction in the developed state.

In FIG. 1 further indicates that the walls 2, 3 are kept in a constant distance from each other by means of the webs 9 which extend between them at the lower end and which firmly connect the walls 2, 3 to each other. With insulation substance 4 oz. the insulating panels 5 inserted are further positioned by the walls 2, 3 with the help of the insulating material 4, so that the end of the walls 2, 3, which does not have any wall, is also. the mutual position of the walls 2, 3 is somehow determined.

Finally, it should be in relation to the piece or piece. tube 1 according to the invention emphasizes that the walls 2, 3 of the tube, namely the inner tube and the outer tube are made of stainless steel.

FIG. 4 shows an embodiment of a device according to the invention for installing flexible insulating panels 5 between the coaxially extending and spaced apart walls 2, 3 of a two-tier shaped piece, namely the previously discussed two-tier pipe 1.

In the manner in accordance with the invention, FIG. 4 is an exemplary embodiment of the device according to the invention an inner tool 10 which is inserted from the inside to the free end of the inner wall 2, and an external tool 11 which can also be inserted from the inside to the free end of the outer wall 3. Internal tool 10 and an external tool 11 are coaxially co-located with each other in their respective soaked state, forming a kind of extension tube 1 to be filled with insulating plates 5.

FIG. 4 further shows that the inner tool 10 has an extending outer ridge 12 around the circumference, which serves as a stop on the one hand and on the other hand as a passage to the inner wall 2. The outer ridge 12 extends somehow beyond the thickness of the inner wall 2 away from the inner tool 10. forming a transition from the inner tool 10 to the inner wall 2.

FIG. 4 further illustrates that the inner tool 10 extends from the area of the outer tool 11 in a direction that is away from the flange or piece. tubes 1. The inner tool 10 thus forms a backing plate for insulating panels 5 extending from the tube 1, which serves as a design aid. The inner tool 10 further shows a smooth outer surface 13 which serves as a sliding surface.

FIG. 4 further shows that the external tool 11 is made in a funnel-shaped manner. The area 14 of the external tool 11, which extends towards the free end, forms a plug-in restriction with its wall. back for external tools 11. It is self-explanatory that the inner surface 15 of the expanding region 14 of the outer tool 11 is executed smoothly, so that the inner surface 15 also forms a sliding surface for the insulating plate 5.

Based on FIG. 4 may also show a method according to the invention for installing flexible insulating panels 5 between the walls 2, 3 of the two-pipe tube 1 using the previously discussed device according to the invention. First, the inner tool 10 and the external tool 11, respectively, are attached to tube 1. it is inserted between the walls 2, 3 of pipe 1. The inner tool 10 serves as a stop and for bending the insulating plates 5 and the outer tool 11 serves as a guide.

The sequence of installation of the inner tool 10 and the outer tool 11 is irrelevant. The inner tool 10 and the outer tool 11 together serve to guide the two sides and optionally to thicken the insulating plates 5 to be inserted.

The insulating plate 5 is bent around the inner tool 10. Then, the bending of the insulated plate 5 into the area between the walls 2, 3 begins. In this case, the insulating plate 5 is compressed during the boiling. After the final installation or installation. then the inner tool 10 and the outer tool 11 are removed again after the insulating plate 5 is bent.

In FIG. 1 and 4 are intended to bend so many insulating panels 5 and insert them one after another into the area between walls 2 and 3 that the space between walls 2, 3 is filled along the entire length of the piece. The insulating plate 5 is then compressed in the longitudinal direction of the shaped piece when bent into the area between the walls 2, 3, thereby improving thermal insulation again.

The foregoing embodiment exemplifies only a better understanding of the doctrine of the invention, which is not limited to that embodiment.

Claims (14)

PATENT APPLICATIONS A multi-shell shaped piece, in particular a chimney (1) for the chimney restoration, with at least two co-extending and spaced apart walls, between which is insulated material (4) made of mineral wool, characterized in that the insulating substance (4) it consists of at least one bent, preferably made of stone wool fabricated insulating panel (5) with at least a largely constant cross-section. Shaped piece according to claim 1, characterized in that the fibers (6) extend in a manner parallel to the surface of the insulating panel, so that they extend substantially parallel to the surfaces of the walls (2,3) and thus transversely to the heat flow (7) . Shaped piece according to claim 1 or 2, characterized in that the insulating material (4) is made in at least one circumferential direction, i.e., in the circumferential direction, it consists of a single insulating plate (5), and that the axial the running edges (8) of the insulating plate (5) are in contact with each other. Shaped piece according to claim 3, characterized in that the edges (8) are cut so obliquely at an acute angle that the insulating material (4) overlaps the adjacent edges (8). Shaped piece according to claim 4, characterized in that the insulating plate (5) has a trapezoidal cross-section in the longitudinal direction. Shaped piece according to one of Claims 3 to 5, characterized in that the insulating plate (5) is formed as a tube shell, preferably tangentially extending along the inner wall of the tube shell, extending longitudinally. Shaped piece according to one of Claims 1 to 6, characterized in that the insulating material (4) is siloscope, i.e. in at least slightly compressed condition, positioned between the walls (2, 3). Shaped piece according to one of Claims 1 to 7, characterized in that the walls (2, 3) are held in a constant distance from each other by preferably extending at one end between them and the walls (2, 3) firmly against each other connecting rods (9), spacers or the like. Apparatus for installing flexible insulating panels (5) between coaxially extending and spaced apart walls (2, 3) of multi-shell shaped pieces, in particular shaped pieces according to one of claims 1 to 8, characterized in that it consists of an inner tool ( 10) that can be inserted from the outside or inside to the free end of the respective inner wall (2), and the external tool (11) that can be inserted from the outer or inside to the free end of each outer wall (3), both the inner tool (10) and the outer tool (11) are coaxially positioned at least substantially coaxially. Device according to claim 9, wherein the inner tool (10) can be inserted from the inside to the free end of the inner wall (2), characterized in that the inner tool (10) preferably has an outer ridge (12) or an extending outer ridge (12). . thickening, or the like, which acts as a stop on the one hand and as a passage on the inner wall (2). Apparatus according to claim 9 or 10, characterized in that the inner tool (10) extends from the area of the outer tool (11) in a direction facing away from the flange end, to have the inner tool (10) with its own from the flange body the extending area is a backing board for insulated panels (5) to assist in the design and a smooth outer surface (13) to serve as a sliding surface. Device according to one of Claims 9 to 11, characterized in that the external tool (11) is approximately funnel-shaped and can be inserted from the inside to the free end of the outer wall (3) and that the area (14) of the external tool (11) , which expands towards the free end, with its wall forms a plug-in restriction or. backrest. A method for installing flexible insulating panels (5) between the walls of a multi-shell shaped piece according to one of claims 1 to 8, in particular between the walls (2,3) of a two-pipe pipe, preferably a rock pipe, using the device according to one of claims 9 to 12, characterized in that it comprises the following steps: - slipping or. insertion of an external tool (11) which serves as a guide, - slipping or. insertion of an inner tool (10) which serves as a stop and for bending of insulating plates (5), wherein the internal and external tools (10,11) can also be arranged in reverse order and together serve for the two-sided guidance and, if necessary, the thickening of the insulating plates (5), - bending the insulating plate (5) around the inner tool (10), - twisting the insulating plate (5), which was bent on the inner tool (10), into the area between the walls (2,3) and optionally compressing the insulating plate (5) during the welding, - Recording of internal and external tools (10,11). A method according to claim 13, characterized by bending as many insulating plates (5) and rotating them one by one until the space between the walls (2, 3) is filled along the entire length of the shaped piece, and If necessary, the insulating plates (5) are compressed in the longitudinal direction of the shaped piece.