CZ135392A3 - Joint of chimney liners - Google Patents

Abstract

The connection consists of a cylindrical connecting body (1) s an annular protrusion (20) to which the adjoining ends abut connected chimney inserts (2,2), with a connection it may be internal, external, or two-striped.

Description

Technical field

The invention relates to the connection of chimney liners, which are used in particular for the subsequent lining of a chimney, which is necessary because of the long-term action of the gases discharged through the chimney there is a danger of destruction of the chimney, resulting in high overhaul costs. to build a new chimney. BACKGROUND OF THE INVENTION

Lining of chimneys is carried out from the roof by inserting chimney pipe inserts made of a thermal insulating material, usually based on a mastic material, which at the same time has considerable resistance to aggressive components of the flue gases exhausted. The individual liners are connected and joined during insertion into the stack so that the stack of interconnected liners located in the stack forms a single unit of interconnected stack liners, the connections of which are sealed against the escape of flue gases.

Flue liners have one end. a widened throat with an inner diameter slightly larger than the outer diameter of their other end. When the chimney is inserted, these chimney inserts are gradually lowered into the chimney; the lower part of the subsequent liner is inserted into the neck of the lower liner, the joint is sealed with a suitable sealant, the whole is lowered into the chimney and the described process is repeated.

The described connection has a number of disadvantages. When using a chimney liner with a neck, the diameter of the neck must be such that the neck can pass through the chimney vent without obstruction. As a result, the inner diameter of the chimney liner is greatly reduced relative to the original vent, which greatly reduces the efficiency of the lined chimney, particularly in terms of flue gas exhaust.

SUMMARY OF THE INVENTION

The essence of the connection of the chimney liners, which removes or at least greatly reduces said drawbacks, is that it consists of a heat-resistant cylindrical connecting body, eg aluminum or stainless steel, whose inner and / or outer diameter corresponds to the inner and / or outer diameter of the ends The cylindrical connecting body is provided with an inner or outer annular protrusion on its periphery, adjoining the upper edge of the lower chimney liner and the lower edge of the upper chimney liner, the chimney liners having constant inner and outer diameters.

Particularly effective is a connection wherein the cylindrical connector body is double-walled and there is an upper portion of the lower chimney liner and a lower portion of the upper chimney liner in the gap between the shells.

In order to improve the sealing and tightening of the joint, the outer part is provided with a bandage formed by a wrap in combination with a sealant.

Overview of the drawings

Examples of the invention are described below with reference to the accompanying drawings, in which Fig. 1 shows a connection by means of an inner cylindrical connecting body, Fig. 2 by means of an outer cylindrical connecting body and Fig. 3 shows a connection by a double-shell cylindrical connecting body; in longitudinal axial section.

DETAILED DESCRIPTION OF THE INVENTION

The basic element of the connection is a cylindrical connecting body X which is sufficiently heat-resistant but also resistant to aggressive environments, for example of aluminum or stainless steel, whose outer diameter corresponds to the inner diameter of the upper chimney liner 2 and the lower chimney liner 2. identical. The cylindrical connector body X is provided with an outer annular protrusion on its periphery

20. and is mounted on the upper end of the lower flue liner 2, the outer annular projection 20 of which rests on the upper edge of the end of the lower flue liner 2. Then the upper flue liner 2 * is mounted on the cylindrical connector. 20. The thus formed connection can be further strengthened by gluing, sealing, riveting, in particular an outer bandage Z made of a suitable heat-resistant material in combination with a suitable sealant.

In the embodiment of FIG. 2, the only difference is that the cylindrical connector body X has an annular projection 20 internal and the ends of the chimney liners 2, 2 / are inserted into the cylindrical connector body X.

In the embodiment of FIG. 3, the cylindrical connector body X is double-walled and annular outlets 20 outer and inner are connected to each other, and the ends of the chimney liners 2, 2 are inserted into the gap between the sheaths of the cylindrical connector body. i paved.

Claims (3)

Claims A flue liner connection characterized in that it consists of a heat-resistant cylindrical connecting body (1), eg aluminum or stainless steel, the inner or outer diameter of which corresponds to the inner or outer diameter of the ends of the connected flue liners (2, 2), the connecting body (1) is provided on its periphery with an inner or outer annular projection (20) adjoining the upper edge of the lower chimney liner (2) and the lower edge of the upper chimney liner (2), the chimney liners (2, 2) have a constant inner and outer diameter. Connection according to claim 1, characterized in that the cylindrical connecting body (1) is double-walled and in the gap between the shells there is an upper part of the lower chimney liner (2) and a lower part of the upper chimney liner (2). Connection according to Claims 1 or 2, characterized in that the outer part of the connection is provided with a bandage (3) of wrapping in combination with a sealant.