DE1525749A1 - Process for the outer cover and vapor-tight sealing of the insulation of insulated heat carrier pipes and jacket for carrying out this process - Google Patents

Description

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Arthur MeiT-Schenk Zurich

Process for external covering and vapor-tight sealing of the insulation insulated heat carrier pipes and jacket for carrying out this

Procedure

The object of the invention is a process for the outer cover and the waterproof sealing of the insulation of insulated WimetrÄgerrobre, in which the insulation is wrapped in a plastic or metal foil forming a jacket, as well as a jacket sur Implementation of this procedure

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809838/0580

To protect heat transfer pipes, ζ.Β · the hot water pipes from central heating, from hot water and steam pipes, but also of refrigerant and coolant lines against heat losses are the real ones Provide heat transfer pipes with an insulating jacket made of insulating material, e.g. by enclosing a pipe to be insulated, mostly Hollow cylindrical insulating jacket cut open in two halves like a two-part form around the pipe to be insulated and wrapped around it is attached in this position · This occurs at the points of contact of the two Isoliermantelhälten running in the longitudinal direction of the line Joints and between adjacent insulating jackets, seen in the longitudinal direction of the line, in the circumferential direction of the line, which not only form the source of heat loss, but also provide access, especially if the line has to be laid directly in underground channels of corrosive liquids and gases to the outer surface of the heat carrier pipes allow ·.

But even if, as has also already been suggested, the insulating jacket is wrapped in a plastic or metal foil, result at the points of overlap of this film in the longitudinal direction of the line running joints that have to be sealed in some way «

The quickest method would be to stick one of these over the joint covering tape. But there is a risk that such Adhesive tape fall off or become damaged over time

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909838/0580

So far, it has been found that the sheath was fastened on the spot during the laying by means of staples driven in short distances through the overlapping ends of the foil and anchored in the insulation underneath, possibly with the interposition of a special joint cover strip for covering the overlap joint. :. _;

This procedure is not only time consuming but it has been shown that certain in recent times are increasingly used as insulating materials Synthetic foams reaching the brackets are not sufficient and able to give permanent hold.In addition, the overlaps, so that the staples can be driven in, always at the easiest accessible place which is appropriate also in most

Cases is clearly visible, and therefore with visibly laid insulation pipes

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looks ugly «^ ~.

The method of the present invention for the external Covering and vapor-tight sealing of the insulation of insulated heat and carrier pipes, in which the insulation in a plastic or metal foil is taken, avoids these disadvantages by having a along one edge with a double-sided adhesive on the outside soap with a cover tape covered film taut wrapped around any insulation so that the tape is overlapped, and that on that between the adhesive tape and the overlapping film part lying cover strips is pulled off through the overlap joint.

909838/0580

The »double-sided adhesive and single-rope Adhesive tapes provided with a cover strip are known and are commercially available in various widths and in various thicknesses of the actual ones Aggressive, age-free adhesive layer available.

For the method according to the invention, those with very thin ones are suitable Carrier-free adhesive layer, which creates an absolutely hermetic seal of the joint between the jacket parts that are glued to one another

The cover, which is attached very quickly in this way, can also be » since it does not adhere to the insulation »rotate around it» so that the overlap point is subsequently attached to a visible line when the lines are laid normally not visible place, for example against the wall or Ceiling along which the line is laid and can be rotated.

The jacket, which is also the subject of the invention, for implementation of the process is characterized by the fact that the film forming it is longitudinal one long edge with a double-sided adhesive »on the one facing away from the film Side with an adhesive tape provided with a cover strip is prefabricated ready for installation «

Such a coat can be brought to the construction site without tools quick »easy and safe to lay»

909838/0580

The invention is illustrated below, for example, with reference to the enclosed Drawing explained in more detail. It shows.;, ... -c. - -> ■.-.-

1 is a perspective view of a part of a prefabricated one ready-to-assemble jacket,

Fig. 2..eine perspective view with partially removed parts of a insulated line when applying the jacket according to FIG. 1.

For covering and sealing an already installed heat carrier pipe Prepared insulating shells and ready-to-install, prefabricated jackets in standard lengths are brought to the construction site »A single one such a jacket is shown in FIG. It consists of a metal or Plastic sheet 1, which, in order to facilitate its laying in place, Already in the production plant under heat approximated to the diameter of the heat transfer medium encased in the insulating shells is cylindrically precalibrated is. Also still in operation is along the one axially parallel longitudinal edge 2 a standard double-sided on the inside of the curve Adhesive tape 3 pulled up, the one facing away from the film 1 on its Side is provided with a cover strip 4. For the sake of will illuminate the description of the installation of this mantle protrudes with advantage of the cover strip 4 as shown in Fig. 1 at 5, over the End of slide 1 forward · ~

The pre-fabricated jacket, ready for assembly in this way, is placed in the for

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909 83 8/05 8 0

such covers usual lengths on the laying point · around the au insulating heat transfer pipe 6 (Pig · 2), the insulating shells 7, 8 are arranged in the usual way and then the jacket of the Fig. 1 wrapped tightly around the insulating shells, the two axially parallel Edges of the film 1 overlap, and the cover strip 4 of the adhesive tape thus on the part above or below The film comes to rest depending on which edge the tape was attached to.

In this position, the coat can be provisionally made using thread 9, for example be fixed. The pelvic strip 4 is now recorded "what by that protruding end 5 is facilitated, and by the overlap joint 10 deducted. Through the successively released adhesive layer the overlapping parts of the film become progressively automatic permanently connected to each other, at the same time being a vapor-tight The joint is completed »As a further safety measure and also to protect the adhesive connection, can in addition the joint can be covered with a strip in a manner known per se »

Now the finished coat can, if necessary, around the insulating shells twisted around so that the overlap is hidden.

In the same way, the following parts of the length of the Heat carrier pipe insulated, covered and sealed.

909838/05 8 0

The pre-calibration of the film 1 makes it much easier to lay and also the connection, since the laid foil does not have any connection has more counteracting internal stress

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Claims (1)

PATENT APPLICATION 1 · Procedure for external covering and vapor-tight sealing the insulation of insulated heat transfer pipes in which the insulation in a plastic or metal foil forming a jacket is taken, characterized in that one along a Edge (2) with a known double-sided adhesive tape (3) covered on the outside with a cover strip (4) Foil (1) is wrapped tightly around the insulation (7 * 8) so that s the adhesive tape is overlapped, and that thereupon the cover strip (4) lying between the adhesive tape and the overlapping film part through the overlapping joint (1O) is deducted 2 · The method according to claim 1, characterized in that the film prior to their laying approximated to the shape of the laid jacket is pre-calibrated. 3. The method according to claim 1, characterized in that the over- Lapping joint to protect the connection then with a cover strip is covered " 4. Coat for performing the method according to claim 1, characterized in that the film (1) forming it along a -8th- 909838/05 8 0 Longitudinal edge (2) with a double-sided adhesive known per se the side facing away from the film is provided with a cover strip (4) Adhesive tape (3) is prefabricated ready for assembly. 5. Sheath according to claim 4, characterized in that the film is approximately pre-calibrated to the shape of the laid sheath 6. Sheath according to claim 4, characterized in that the basin strip (4) of the adhesive tape protrudes over the film at one point (5) Arthur Meier-Schenk - 9 909838/05 8 0 tea rs ei te