FI97566C - Supply and connection system for vertical and horizontal piping of the boiler firebox - Google Patents

Description

The present invention relates to a boiler firebox supply device 5 for a wall of parallel vertical pipes leaving one or two inlet collectors, which forms a top wall or a collector on the vertical wall of the firebox, and a parallel collector on the wall of the firebox. and a connecting device between these walls.

Until now, the connection between such pipe walls has been made by using welded arc plates welded to the vertical edges of the vertical pipes and to the connecting joints between the horizontal pipes and the pipe connecting elements 15 connected to their inlet collectors, respectively.

Proper welding of such plates to pipes and pipe elements is difficult, their resistance to the high temperature prevailing in the firebox is uncertain 20 and their reliability is rather poor.

Finnish patent publication 28359 describes a switching device for radiators used for heating houses and buildings. The device comprises a cross-shaped bypass flow device with four pipe connections for connection between the radiator inlet pipe and the outlet pipe. The switching device has a bypass channel for the throttle flow of the radiator. To eliminate bypass flow at full radiator flow, the radiator inlet channel of the field device 30 is configured to provide a dynamic pressure drop in the area of the bypass passage.

Norwegian publication 166 811 describes a connection device for a tu-35 piece and a pipe. This coupling device is used in various oil drilling structures. The connection device is based on mechanical coupling and there is no hydraulic connection between the support piece and the pipe.

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French patent application 2,458,766 describes the structure of a central heating boiler in which the flow pipes of the heating medium are connected to each other by means of manifolds 5.

It is an object of the present invention to provide a feeder for such walls and a wall-to-wall connection device which is easy to weld to pipes and tubular connection elements and which is well cooled by the circulating material in the pipes and thus has good resistance to high furnace temperatures, long service life and good reliability. .

The device according to the invention is characterized in that each vertical pipe is attached to a corresponding horizontal pipe by a pipe piece comprising two pipe bends in the same plane, each connected to either a horizontal pipe or a vertical pipe and to the connecting pipe element of the inlet collector or collectors.

The pipe pieces are preferably welded to each other with small-diameter sealing rings or by welding together two half-flanges formed by force-25 rackets or by hammering during the manufacture of the pipe piece.

Next, the device according to the invention will be described by way of example with reference to the accompanying drawings, in which:

Figure 1 shows a side view of the connections between the vertical pipe, the horizontal pipe and the inlet manifold;

Figure 2 shows on a larger scale a vertical section of a connecting pipe piece 35; and

Figure 3 shows the connecting devices attached to each other.

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In Fig. 1, the vertical pipe 1 is connected to the inlet manifold 4 by means of a connecting pipe piece 2 and a U-shaped connecting pipe element 3. The substantially horizontal pipe 5 of the lower or upper bottom of the furnace is connected to the second inlet size .

Figure 2 shows the connecting pipe piece 2 in more detail in section 10, and comprises a first pipe bend 7 terminating on one side in a vertical pipe welding base 8 and on the other side in a second welding base 9 for a manifold connecting pipe element such as element 3 in Figure 1.

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The second pipe bend 10 terminates on one side in the welding base 11 of the horizontal pipe and on the other side in the base 12 for welding to a vertical connecting pipe element, such as the element 6 of Fig. 1.

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The connecting pieces of the vertical tube 1 and the horizontal tube 5 are located in parallel planes. They are joined together by welding together two half-flanges 13 formed by forcing or hitting during the manufacture of these pieces 2 25 (see Figure 3).

These half-flanges 13 are located as an extension of the half-flanges 14 welded to the vertical tubes 1 and the horizontal tubes 5.

The connectors could also be connected to each other using sealing rings of the known type (not shown) which would be welded to opposite connectors.

Claims (2)

97566 4 Patented Applications A boiler furnace furnace feeder for a wall of parallel vertical pipes (1) from one or two inlet collectors forming a collector on the vertical wall of a furnace and a wall of parallel horizontal pipes (5) forming a lower or upper bottom, and a connection therefrom , that the vertical pipe (1) of 10 is fixed to the corresponding horizontal pipe (5) by a pipe piece (2) comprising two pipe bends (7, 10) in the same plane, each of which is connected to the other side to either the horizontal pipe or the vertical pipe, and on the other hand, 15 connecting pipe elements (3, 6) of the inlet collector or collectors (4). Connecting device according to Claim 1, characterized in that the pipe sections (2) are welded to one another by means of small-diameter sealing rings or by welding together two half flanges (13) formed by forcing or hitting the pipe section (2) during manufacture. li 5 97566