JPS596336B2 - Furnace wall exterior material support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a device for holding an exterior material at a joint between a vertical wall deck plate and a bottom deck plate.

In wind boxes, vent houses, hoppers, etc., there is a joint between the vertical deck plate and the bottom deck plate.

For such joints, it is required to have a structure that absorbs the difference in elongation between the deck plate and the ice wall tube due to thermal expansion, and if the displacement of the structural member due to temperature difference is to be carried out smoothly. If this is not possible, cracks and deformation of the covers due to the generated stress will occur, resulting in gas leaks, rain leaks, etc., which will impede the operation of the boiler, etc.

Such expansion and iIl amount increases the capacity of boilers, etc.
Therefore, as the boiler external dimensions increase, it becomes thicker.

This invention proposes a structure of a supporting device for a furnace wall sheathing material, which allows a deck plate attached as an exterior sheathing material for a boiler etc. to be freely displaced and allows for good water drainage. An example of the structure is shown in FIG.

FIGS. 1 to 3 show the structure employed in this type of conventional joint portion.

The lower end of the vertical deck plate 13' is attached to one end surface of the Z-shaped coupling cover with a rivet 20 as shown in FIG.
The bottom deck plate 13 is held down by a deck plate holder 11, and this deck plate holder 11 is also fixed to the type 2 connecting plate with rivets.

The type 2 connecting plates 4 and 4' have an overlapping portion 15 and are in sliding contact.

Further, the type 2 connecting plate 4 is fastened to the support 1 which is welded to the inner casing 2 with bolts 7 and nuts 6 via a heat insulating packing 3.

Therefore, the displacement due to thermal expansion cannot be smoothed out at the sliding contact portion of the type 2 connecting plate, resulting in problems such as cracks and poor drainage.

The present invention eliminates such drawbacks, and its structure will be explained with reference to FIGS. 4 to 6.

The bottom deck plate 13 is held by a deck plate retainer 11 welded to the type 2 coupling cover 4.4'.

This deck plate holder 11 has mutually abutted portions 1 at the end faces.
form 6.

The type 2 joint covers 4, 4' are covered with a type 2 joint cover 5 having an interposed part 17 with a protrusion around the bolt hole, and this Z type joint/cover 5 is welded to the inner casing. Tightening is maintained by the bolt 7 which is threaded into the nut 6 welded to the short piece 18 of the support 1, but the presence of the intervening portion 17 prevents any force from being applied to the type 2 coupling cover.

Further, in this case, the intervening portion 17 may be replaced with a bush.

The assembly of the above-mentioned parts forms the bottom deck plate holding device.

Further, the vertical deck plate holding device is formed by holding the deck plate lower end presser 10 by a Z-shaped connecting cover 4 and a clip 12 welded thereto to hold the lower end of the vertical deck plate 13'.

In this way, by forming the bottom deck plate holding device and the vertical deck brake holding device through the 2-type joint cover, it is possible to reduce the damage of the exterior material based on the difference in thermal expansion between the deck plate and the main body side such as the boiler ice wall tube. displacement is absorbed,
Moreover, it can have a good draining effect.

The support 1 may be made by bending a rectangular thin steel plate into an L shape, but when the short side 18 is further bent to form the bent side 19, the edge of the support is shear cut. This is desirable because there is no digging into the adjacent member that occurs when the support is in contact with the support, and there is smooth sliding contact, and the support itself has good resistance to deformation.

In short, in a support device for a furnace wall exterior material that holds the connecting part of a vertical wall and a deck plate installed on a bottom surface that is almost perpendicular to the vertical wall, a device in which a deck plate retainer 11 is welded to type 2 connecting covers 4, 4' is used. The longitudinal end surfaces of the deck plates are butted against each other, the abutting portion is covered with a Z-shaped joint cover 15 having an intervening portion 17 around the bolt hole, and the inner casing 2
The joint cover 5 is attached to the support 1 welded to the bolt 7.
The vertical deck plate 13 is held by holding the lower end presser 10 of the deck plate by a bottom deck plate holding device which is tightened with
The device is characterized in that it is a supporting device for a furnace wall exterior material, which comprises a vertical deck plate holding device that holds the lower end of the furnace wall.

Further, the present invention is characterized in that it has an L-shaped support in which the short side 18 of the L-shaped support 1 welded to the inner casing is bent to form a bent side 19.

By carrying out this invention, the Z type joint cover is held smoothly by the type 2 joint cover, so it is easy to hold these deck plates based on the difference in thermal expansion, and there is less chance of cracking. The tube has various effects such as improved draining.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a part of a conventional coupling cover, Fig. 2 is a main view taken along line A-A in Fig. 1, Fig. 3 is a main view taken along B-B shown in Fig. 1, and Fig. 4 is a main view taken along line A-A in Fig. 1. FIG. 5 is a front view of the apparatus according to one embodiment, FIG. 5 is a sectional view taken along line CC in FIG. 4, and FIG. 6 is an external perspective view of FIG. 4. 1...Support, 2...Inner casing, 3...--Insulation packing, 4.4'...
・Type 2 joint cover, 5...Z type joint cover, 6
...Nut, 7...Bolt, 8...°
...Spring washer, 9...Washer,
10... Deck plate lower end holder, 11...
...Deck plate holder, 12...Clip, 13゜13'...Deck plate, 14...
... Heat insulation material, 16 ... Butt part, 17 ...
...Intervening part, 18...Short side, 19...
...Bending side.

Claims (1)

[Scope of Claims] 1. A support device for a furnace wall exterior material that holds a connecting part of a vertical wall and a deck plate installed on a bottom surface substantially orthogonal thereto, in which a deck plate holder is welded to a type 2 connecting cover. are butted against each other at the longitudinal end surfaces of the deck plate presser, the abutted portion is covered with a type 2 joint cover having an intervening part around the bolt hole, and the type 2 joint cover is bolted to a support welded to the inner casing. Furnace wall exterior comprising: a bottom deck plate holding device; and a vertical deck plate holding device that holds the lower end of the vertical deck plate by holding the lower end presser of the deck plate with a clip welded to the Z-shaped connecting cover. Support device. 2. The support device for a furnace wall exterior material according to claim 1, wherein the support has a bent side at the end of the short side.