DE3011288A1 - Tension-band held pipe stub for flue pipe side openings - has one end flanged and shaped to flue pipe contour and carries two-piece tension band - Google Patents

Abstract

The tension-band held chimney flue pipe-stub is for fitting to lateral openings in flue pipes. The stub and seating against the flue pipe is flanged to produce a continuous sealing surface between the two and they are held together stressably and releasably by a flexible two-piece tension band fixed to the stub. This is of constant dia., less than or equal to that of the flue pipe, the flanged portion only being shaped to match the latter's contours. Pipe-stub bore is pref. between 100 and 300 mm; wall thickness 0.3 - 3.00 mm.

Description

Subject of the invention:

Smoke pipe socket with strap fastening.

The subject matter of the invention relates to smoke pipe stubs, which are used in the heating sector on smoke pipes of any length for use as a side outlet come and be fastened quickly using a strap.

The same cross-discharge flue pipe connections attached to the side of the flue pipe are used, for example, to accommodate draft regulator flaps, which move with increasing Place the chimney closed at an angle, thus reducing the negative pressure in the combustion chamber effect of the heater.

For such also "train breaker" called facilities were previously welded, riveted or screwed smoke pipe socket used, whereby the smoke pipe pieces in laborious preparatory work first in the workshop or on site and place had to be prepared.

To avoid this, there are also half-shell, i.e. two-part Smoke pipe socket, which are screwed together before being attached to the smoke pipe and also with regard to an adaptation of the connection point to the respective smoke pipe diameter must be cut before they are placed on the front, with only the sheet thickness serves as a support surface, which leads to leaks at the connection point leads and also does not guarantee a sufficiently force-fitting pipe connection.

In the subject matter of the invention, the smoke pipe socket is attached on the smoke pipe piece, which can have any length, by means of a detachable Tension band, as it is used in a similar way to pipe clamps.

Beforehand, one of the contours of the smoke pipe socket is made in the smoke pipe section adapted, but slightly smaller recess introduced.

When the subject of the invention is the smoke pipe socket with a after outwardly curved, up to approx. 20 mm wide bearing surface designed like a flange, the in its course adapted to the existing smoke pipe as a counterpart in a form-fitting manner and can also be referred to as a "cantilever".

To achieve a perfectly tight connection, additional the contact surface of the flue pipe socket must be coated with heat-resistant putty.

The strap attached to the smoke pipe socket is placed around the smoke pipe section and adapts this to the support surface of the smoke pipe socket during clamping so that that there is sufficient tightness at the connection point.

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A leak can be permitted in Crenzen, as accordingly the function of the attached pendulum flap regulator is affected by secondary or false air caused chimney draft control is intended, so air inlet anyway with negative pressure takes place in the smoke tube piece.

In the following, the subject matter of the invention will be based on exemplary embodiments described and represented.

In Figure 1 is a cross section through a smoke tube piece 1 of any Length shown, placed on the laterally outgoing smoke pipe socket 2 and Via two separately arranged tension band parts 3a and 3b by means of the screw 4 and nut 5 is clamped and held.

The tension band parts 3a and 3b are at one end with the flange surface 6 firmly connected, in the embodiment of Figure 1 at point 7 they are fixed welded.

The pipe section 1 has an opening within the flange surface 6 8, which is slightly smaller in area than the inner cross-section 9 of the smoke pipe socket is executed.

The flange surface 6 of the smoke pipe socket, which serves as a support surface 1 is adapted to the diameter of commercially available pieces of smoke pipe, for example the flue pipe diameters from 153 mm to nominal # of 150 mm and sheet thickness 1.5 mm, or 183 mm with a nominal diameter of 180 mm with the same sheet thickness.

The length of the smoke pipe connecting piece leading away from the pipe section 1 2 is between 30 and 500 mm in practice; the diameter of the smoke pipe socket is usually made smaller than or equal to the pipe section diameter, it aligns according to the commercially available connection diameters of pendulum flap draft regulators.

The sheet thicknesses used correspond to those in the relevant DIN standards proposed, the intended use, the material and the smoke pipe diameter dependent sheet thicknesses.

At the other free ends of the tension band parts 3a and 3b is in the embodiment 1 an angle 10 is available for screw 4 and nut 5 to form a clamping surface.

Figure 2 shows (on a smaller scale) the smoke pipe socket 2 with the Clamping band part 3b mounted on a piece of smoke pipe 1. There is the connection A rivet 11 is shown with the free ends of the strap with the smoke pipe socket.

Figure 3 shows the side view and Figure 4 shows the top view of the embodiment from picture 2.

Figure 5 shows an embodiment of the invention, in the tension band parts 3a and 3b in the clamping area with each other via a screw worm with turnbuckle 12 are tense.

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Figure 6 shows the fastening of the smoke pipe section 2 on the pipe section 1 via 2 tensioning straps 13a and 13b, which loop around the pipe section 1 and the smoke pipe socket 2 at its shortest point over the projection 14 of the flange surface 6 brace with the pipe section 1.

Instead of the welded joint 7 shown in Figure 1, a other releasable connection between the smoke pipe socket and the tension band ends 3a / 3b in the form of a "hole or slot with counterpart" similar to the execution of a so-called. Bayonet lock should be selected.

The width of the tension band parts 3a and 3b or 13a and 13b is determined according to customary designs; it can be up to the size of the smoke pipe diameter be executed and so have the character of a split pipe collar that then - instead of a single one - is braced with several screw connections.

L e r s e i t e

Claims (1)

Claims 0 Claim 1. Smoke pipe socket with strap fastening for lateral attachment to pieces of smoke pipe characterized in that the smoke pipe socket 2 with a flexible two-part tensioning strap wrapping around the smoke pipe section 1 3a / 3b is braced and releasably connected. Claim 2. Smoke pipe socket with strap fastening to the side Attachment to pieces of smoke pipe characterized in that at the connection point from the smoke pipe piece 1 to the smoke pipe socket 2, a flange surface 6 on the smoke pipe socket 2 is located, which adapts in its course to the contour of the smoke pipe section 1 so that that there is a continuous tight connection point for the assembly is. Claim 3. Smoke pipe socket with strap fastening according to claim 1 and 2 characterized in that the smoke pipe socket 2 with one and the same Diameter 18 on smaller or at most equally large diameters 19 of smoke pipe pieces 1 is attached, with only the flange surface 6 of the changed contour of the Pipe section 1 is adapted. Claim 4. Smoke pipe socket with strap fastening according to the claims 1-3 characterized in that the diameter range is preferably 100 to 300 mm with a jacket length of 30 to 500 mm and a sheet thickness between 0.3 to 3.0 mm. Claim 5. smoke pipe socket according to the preceding claims thereby characterized in that the tension band is preferably made of two elastic tension band parts 3a and 3b, one end of which each has a weld 7 in the area of Flange surface 6 is firmly connected to the smoke pipe socket 2, while the two other ends are designed so that they have a screw connection 4/5 or other clamping elements such as turnbuckle with screw worm 12 with an adjustable and releasable clamping force are set. Claim 6. smoke pipe socket according to the preceding claims thereby characterized in that the contact surface between pipe section 1 and pipe section 2 in the area the flange surface 6 is provided with a heat-resistant putty, which is applied before the bracing of the two parts is applied. Claim 7. smoke pipe socket according to the preceding claims characterized in that the smoke pipe section 2 in the area of the flange surface 6 with additional Self-tapping screws are screwed onto the smoke section 2. Claim 8. Flue pipe socket according to Claim 1 - 4, characterized in that A. n p r ü c h e that two tensioning straps 13a and 13b are arranged so that they Loop around the pipe section 1 continuously and the smoke pipe socket 2 in the area of the shortest Flue pipe socket length 14 clamp the flange surface 6 there firmly onto the pipe section 1. Claim 9. smoke pipe socket with strap fastening according to claim 5 characterized in that the free ends of the tension band parts 3a and 3b with the flange surface 6 of the smoke pipe socket 2 instead of the welds 7 by means of Rivets 11 are firmly connected.