SK325592A3 - Thermal elastic connection of two pipe portion - Google Patents

Description

In general, the invention relates to a thermally resilient connection of two components of an arbitrary cross-sectional tube formed of a plurality of components, for at least partially lining, a possible lining or clamped tube, in particular for tubular lining or submerged tubing.

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It is already betrayal that the pipes in their heating narfistí their diameter. This causes a lower thermal expansion coefficient on contact with materials that have a lower coefficient of thermal expansion or contact with components at different temperatures to give rise to stress, which can cause the tubes to bulge to lift the tubes. also disturbing the walls and circumferential, possibly clamping the pipes.

EP-A1 372.005 discloses the coating of a corrosion-resistant sheet by means of chips which are guided in openings and which are welded on a corrosion-resistant sheet. If the structure is also intended to accommodate different elongations, the edges of the individual sheets (not shown) may be able to move independently of one another. Of course, this is not possible with pipes.

It is known from GB-FS 1,344,420 to create a chimney passage through a structure, wherein in the expansion joint cross-grooves are provided to allow thermal expansion. Here, the cross-section of the érérbina changes.

DE-OS 2 149 895 discloses a grooved pipe, so that at different thermal elongations, the elastic wrapping forces are transmitted, so that even this structure is not free of forces.

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SUMMARY OF THE INVENTION It is an object of the present invention to counteract overloads which are selected by thermal expansion and to resist structurally the difference in thermal expansion, thereby providing a thermal resilient structure.

The object of the invention is to solve the problem of the thermal elastic joint according to the invention, which consists in overlapping the tube parts on the longitudinal sides! and having apertures having different transverse cross-sections in the overlap rails in which the connecting pins are mounted partially with the vulcan. in a larger cross-section that connect the overlapping tube components. Other essential embodiments of the joint according to the invention are disclosed in the dependent claims 2 to 6.

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The invention is explained in more detail below with reference to the drawing.

In FIG. 1 is a schematic front view of the tube; and FIG. 2 corresponding £ view.

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In FIG. 1 is a plan view of a wall 17 clamped in a wall G which consists of a plurality of strip-shaped tube parts 7 which are shaped in accordance with the curvature of the tube X overlapping on its longitudinal sides. In places SVEBA overlaying a sheet-metal strip grooves 2 that are uspoŕádáoy at least in the end, any clamping trumpets ^r l_ and to the places of overlap of the various major carry cross cut through * 7 Open <2 there is a respective connection pin II "having a head 4 The connecting pin 3 itself is always passed through the opening 3 with the cross-section of the cross-section and is then welded in the opening 3 with the smaller cross-section so that the part of the pipe 2 which is between the head 4 and the weld the opening 3 to expand freely. Each tube part 11 has on its outer side a suspension device 5 by means of which the tube part 1 is fastened in the lining G, so that due to the different thermal expansion of the tube 1 and the lining. G can not on one side expand the tube part 1 to a larger extent; and, on the other hand, the sheet or the welded connecting pin 3 can be expanded by the adjacent tube part 1 again in the larger opening 2. Nc coupling is useful; The pin 4 is fixedly welded.

In FIG. 2 shows a corresponding plan view showing the overlap and the structure of the individual sheet metal strips forming a tube 7 which is held in the wall 2. This structure is particularly suitable for decorated chimneys, since the sheets are prevented from coming off the chimney wall. , so that the face L cannot be corrosion-damaging the lining at the points of bulge at the rear point. Another important use of the joint according to the invention takes place in the construction of the swirl powder dip tube pipes, where the sheet takes the temperature of the swirl box in a short time, while lining up, possibly the lining of the duster adapts only slowly to the temperature. This applies both to the start-up and to the shutdown of the equipment, which causes high stresses and corrosion, which not only threatens not only the sheet metal shell, but also the walling, eventual lining. This is a bad thing when combustion is carried out in the viral bed, that is to say, it serves as a combustion device.

Claims (6)

1 · Thermal elastic joint of two tube components of any cross-section, formed from a lid component, for at least partially lined, possibly walled or clamped tube, in particular for pipe lining or vortex evaporator dip tube and large thermal confinement, such as a heater with a swirl channel; n, characterized in that the pipe components (1) overlap on the longitudinal sides at the overlapping points there are provided openings (2) with different cross-sectional cross-sections in which the connecting pins (3) are partially partly with clearance in the larger cross-section connect overlapping pipe components (1), Thermal elastic joint according to claim 1, characterized in that the openings (2) on both longitudinal sides of the pipe part (1) have different cross-sections so that an opening (2) with a larger cross-section is arranged behind the opening (2). cross-section n both holes (2) are connected by connecting pin (3), Thermal elastic joint according to claim 2, characterized in that the opening (2) with a larger cross-section is designed as an elongated opening. Thermal elastic joint according to claim 2, characterized in that the connecting pin (3) preferably has a weld head (4) and the opening (2) with a larger cross-section is the head (4) and the smaller opening. (2), which is welded to the connecting link (3), arranged with clearance. Thermal elastic joint according to claim 1, characterized in that the tube parts (1) have a direction. their width of curvature. Thermal elastic joint according to claim J, characterized in that the pipe components (1) have on their side facing the wall, possibly wall or clamping, of the suspension device (ä).