DE8219397U1 - INSULATED TUBE - Google Patents

Description

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Ruhrkohle AG, ReIlinghauser Strasse 1, 4300 Essen 1

Utility model registration 6 July 1982

A9 / 56/82 Ha / ds

Insulated pipe

The invention relates to an insulated pipe, in particular for Transport of cooled and / or heated media suitable pipelines consisting of flanged pipes that substantially less from an insulating layer surrounding the pipe Thermal conductivity as well as an outer lengthwise or spiral welded Sheet metal jacket.

The flange pipes mainly used in hard coal mining for the transport of cooled or heated media, in particular for the transport of cooling water, have a sheet metal jacket, which is screwed from several individual shots, with the weak points such a sheathing lies in the multitude of screwed and overlapped seams, which is damaged very quickly and allow moisture to penetrate. Because the insulation does not come up to the flange area there are significant thermal bridges.

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Ruhrkohle AG, ReI1Inghauser Strasse 1, 4300 Essen 1

Furthermore, double-jacket pipes are known, with a thick-walled one Inner and outer pipe, the flanges being arranged on the outer casing pipe (GM 81 28 334). The main disadvantage lies in the heavy construction catfish, which due to the oversized outer pipes and the dimensions of the flanges, an adaptation to the im Standard pipes and fittings used in mining are not permitted.

The invention has therefore set itself the task of an insulated To create a pipe for the transport of cooled and / or heated media, which the 1m flange area occurring thermal bridges limited to simple and inexpensive catfish, which as a central tube in the one commonly used in mining Flanged pipe shape can be used, and the design also avoids the ingress of moisture and at the same time the Use of impact wrenches for quick assembly enabled.

This object is achieved according to the invention in that the jacket pipe is firmly welded to the central pipe 1m flange area and in the end areas are conically formed.

In the context of the invention, it proves to be particularly advantageous that, according to one embodiment of the invention, the tapered casing tube is limited by the collar and the Pipe flange, the jacket pipe 1m area of the federal government is arranged unripping. This implementation option creates pipe insulation up to the collar of each pipe, although the Flange 1n is able to produce a sufficiently stable connection, j

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Ruhrkohle AG, ReI1inghauser Strasse 1, 4300 Essen 1

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According to a further embodiment of the invention, it turns out It is advantageous that the tapered jacket tube is welded to the central tube, the tube flange is arranged guided between the collar and jacket tube on the central tube.

Further advantages of the invention are described in more detail in the subclaims.

The technical progress of the invention is essentially therein justifies that the insulated pipe can be produced using the flange pipes standardized in coal mining, with a sufficient one Robustness, a simple and secure connection option with the help of screwdrivers, as well as a minimization the thermal bridges in the area of the pipe connection and the watertight enclosure of the insulating layer are guaranteed.

Several embodiments of the invention are in the drawings and are explained in more detail below. Show it:

Fig. 1 is a section through a partially shown insulated pipe with one ending in front of the loose pipe flange Coat pipe,

2 shows a section through a partially illustrated insulated tube with a tube sealed by a faceplate Coat pipe,

Fig. 3 shows a section through a partially insulated pipe with jacket pipe reaching up to the collar and

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Ruhrkohle AG, ReI11nghauser Strasse 1, 4300 Essen 1

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Flg. 4 shows a section through a partially illustrated insulated pipe with a casing pipe brought up to a fixed flange.

In the embodiment of the insulated pipe according to the invention shown in FIG. 1, a central pipe 3 for transporting cooled media is shown in section! which at the end a covenant and has a pipe flange 5 for connection to an adjacent central rotor 3.

A jacket tube 2 is arranged around the central tube 3, which is conically tapered in the end area and consists of a longitudinal seam or spiral-welded pipe.

The space between the central tube 3 and jacket tube 2 is with Insulating material with low thermal conductivity, for example with Foamed with polyurethane foam or a comparable material.

The tapered end of the jacket tube 2 at the respective tube end ensures the necessary space when connecting the central tubes 3 to one another, the nut of a screwdriver to send the screws open.

In the embodiment of FIG. 2, the tapered one Casing tube 2 closed at the end of the tube near the tube flange 5 by a front disk 7 of low height surrounding the central tube 3. This design allows the use of insulating layers 1 with greater thickness.

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Ruhrkohle AG, ReIlinghauser Strasse 1, 4300 Essen 1

In the embodiment according to FIG. 3, the 1m end region is one Central tube 3 conically designed jacket tube 2 brought up to the collar. The pipe flange S corresponds to the insulating layer 1 turned to the extent that, on the one hand, thermal fractures are kept to a minimum, but sufficient strength of the flange connection is still ensured.

The embodiment according to FIG. 4 shows a central tube 3 with a welded flange 5. The jacket pipe 2 is with a conical taper up to the fixed flanges 5 and welded.

Ruhrkohle AG, ReIlInghauser Strasse 1, 4300 Essen

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1 layer of insulation

2 jacket pipe

3 central tube

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5 pipe flange

6 screws

7 star washer

8 hole 1m flange

Claims (5)

Ruhrkohle AG, ReI 1 inghauser * STraß "e 1, 43 * 0 * 0Tssen I utility model registration July 6, 1982 A9 / 56/82 Ha / ds insulated pipe Protection claims: 1. Insulated pipe, especially for the transport of cooled water in underground mining, which consists of a double- jacket pipe provided with flanges and collars and an insulating compound arranged in between, characterized in that the jacket pipe (2) is firmly welded to the central pipe (3) in the flange area and is tapered in the end regions. 2. Insulated pipe according to claim 1, characterized in that the tapered casing tube (2) through the collar (4) loading •. - Ruhrkohle AG, ReTI inghauser Strasse 1, 4300 Essen 1 -Z- borders and the pipe flange (5) the jacket pipe (2) in the area of the federal government (4) is loosely arranged encompassing. 3. Insulated pipe according to claim 1, characterized in that the tapered casing pipe (2) is welded to the central pipe (3), the pipe flange (5) between the collar (4) and casing pipe (2) on the central pipe (3) ) is arranged guided. (Fig. 1) 4. Insulated pipe according to claim 1, characterized in that the conically tapered casing pipe (2) is formed closed with an annular end disk (7) in the region of the pipe flanges (5) loosely guided on the central pipe (3). (Fig. 2) 5. Insulated tube according to claim 1, characterized in that the conical tapered jacket tube (2) is welded to the fixed flanges (5) arranged at the ends of the central tube (3).