CS254916B1 - Cover for sealing of steam boilers' dilatating wall in region of object's penetration through the wall - Google Patents

Abstract

The solution relates to the field of sealing the expanding walls of the steam boilers in the area of the penetration of the beam by the wall. The solution prevents the drift of dust particles from the working environment of the boiler to the external environment, respectively. sucking cold air into the flue gases. The cover for sealing the expanding wall of the steam boilers consists of a penetrating object on which the plates are fixed, on which the rods are fixed, between which a seal is inserted, on which the pressed plates are rigidly connected by means of flat bars to the wall and secured by pressure strips attached to the projecting object . The solution can be used for the penetration of beams, pipes or curtain wall boiler.

Description

The solution relates to the field of sealing the dilatation wall of steam boilers in the area of the wall penetration of the beam. The solution prevents dust particles from escaping from the working environment of the boiler into the external environment, resp. suction of cold air into flue gas ducts. The cover for sealing the expansion wall of the steam boilers consists of a penetrating object on which the plates are fixed, on which are attached bars, between which a gasket is inserted, to which the pressed plates are firmly connected by flat rods to the wall and secured by pressure bars fixed . The solution can be used for penetrations of beams, pipes or hinges through the boiler wall.

ow.S.2

The invention relates to a cover for sealing the dilatation wall of steam boilers in the region of penetration of an object through this wall.

Until now, the labyrinth separation of the boiler working space from the external space is used, with only the sheet metal being applied, which brings dust particles into the outdoor space, when the boiler overpressure and the vacuum boilers are sucked into the boiler, thereby cooling the flue gas ducts. and thereby reducing efficiency, respectively. Low temperature corrosion equipment.

The aforementioned drawbacks are eliminated by a cover for sealing the dilatation wall of the steam boilers in the region of the object penetration (beam j by this wall, which is based on the fact that on the penetrating beam there are fastened plates, on which are fastened bars. rigidly connected by means of flat bars to the dilatation wall and secured by pressure clamps on the penetrating beam.

The progress achieved by the solution according to the invention is that it removes the leakage of dust particles from the working space of the boiler into the external space - boiler room, resp. prevents cold air being drawn into the flue gas ducts.

In the attached drawings, FIG. 1 shows a cover for sealing the dilatation wall in the region of the intersection of the beam through this wall in partial section, FIG. 2 is a sectional view of FIG. 1 and FIG. 3 is a sectional view of FIG. 1 without using a dilatation wave when the axial displacement of the object relative to the wall is practically zero.

The cover for sealing the dilatation wall in the region of the intersection of the object through this wall consists of the penetrating beam 1, the wall 2, the sheets 3, the sheets 4, the flat bars 5, the bars or the jettles 6, seals 7, thrusts 8, flanges 9 sheet 11, and guide rail 12.

The sheets 4 are rigidly connected to the penetrating beam 1. On the sheets 4 are attached bars or ice cream in case of cooling 6 so as to form a closed groove for insertion of the gasket 7. The gasket 7 is compressed in the groove by the sheets 3 and pressure bars 8 which firmly press the plates 3 against the groove formed from the ledges 6 and compress the seal 7. The pressure bars are firmly fixed to the penetrating beam. The plates 3 are rigidly connected to the flat bars 5 and the flat bars 5 to the flange 9. The second flange 9 is rigidly connected to the expansion wall 2. The two flanges 9 are connected to the expansion wave 10. All joints must be airtight; 7 into the groove formed by the rods 6 in order to prevent dust particles from escaping from the boiler, respectively. suction of cold air into the flue gas ducts.

To prevent deformation of the expansion wave 10 when the wall 2 is displaced perpendicular to the axis of the penetrating beam 1, the expansion wave 10 is secured by guide plates 11 attached to the flat bars 5 or to the flange 9 which is connected to the flat bars 5 and guides 12 the openings in the guide plates 11 are fixedly connected to the expansion wall 2.

If the axial displacement of the object 1 and the wall 2 relative to each other is practically zero, the expansion wave 10 with the flanges 9, the guide plates 11 and the guide bars 12 can be omitted. In this case, attach the sheets 4 to the penetrating object 1 so that they are pressed against the dilatation wall 2 and the flat bars S are firmly connected to the wall 2. Everything else is joined together as above.

The solution can be used in any case, when we need to seal the area of penetration of the object by the wall, while moving them such as beams, pipes, curtains or burners passing through the boiler wall and prevent dust particles from the boiler or cold air from the boiler room into the working space. boiler.

Claims (3)

SUBJECT Cover for sealing the dilatation wall of steam boilers in the area of penetration of an object by a wall, characterized in that it consists of a penetrating object (1) on which the plates (4j) are fastened, on which the rods (6) are fastened. 7), on which the pressed plates (3) are firmly connected by means of flat bars (5) to the dilatation wall (2) and secured by pressure bars (8) attached to the penetrating object (1).