JPS5819938B2 - Lohekigaisouzaino Shijisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for supporting an exterior material of a furnace wall of a boiler or the like.

The exterior material that covers the outside of the furnace wall of a boiler, etc. is subject to loads such as rain and wind pressure on the furnace wall, as well as differences in elongation due to boiler tubes, backstays, etc., and differences in elongation due to thermal expansion in the valleys of the furnace wall. It is necessary to support it with a support device that can absorb the amount of water.

Corrugated steel plates called deck plates are generally used as exterior materials these days, and various styles have been used to attach this deck plate to the backstay, but each has its advantages and disadvantages. This is still not sufficient for practical use.

In other words, modern furnace walls are not only designed to have a heat-retaining thickness that takes only the amount of heat dissipated into consideration, as was the case in the past, but also have sound-absorbing treatments that satisfy the operational noise levels regulated by the location conditions of each boiler. Because it is necessary to carry out so-called soundproofing treatment, the distance from the outer surface of the boiler tube to the inner surface of the exterior deck plate has diversified, and there are more types of members that support the backstay than the boiler tube. The increased distance between the tube and backstay has added to the difficulty of support.

For example, one conventional method of fixing the deck plate to the backstay through a Z-shaped backstay cover is that the boiler can be used regardless of the thickness of the insulation layer due to noise regulations, etc.・;Although there is an advantage that the dimensions between the tube and backstay flange can be unified to an appropriate size, there is a disadvantage that the dimensions of the backstay cover or support are diverse, and it is difficult to use as a drainage and outer covering for the joint of the backstay cover. It had many drawbacks such as poor workability.

The present invention is intended to eliminate such drawbacks in the conventional method, and is primarily an improvement on the method of attaching the backstay cover to the backstay, particularly in the furnace wall sheathing support device.

According to the present invention, the furnace wall exterior material is supported by the backstay cover and the joint cover through supports attached at appropriate intervals to the sides of the flange portion of the backstay made of H-shaped steel or the like. In the present invention, the support can absorb relative positional fluctuations between the backstay and the furnace wall exterior material, is easy to attach, and has sufficient strength.

The advantages of the furnace wall sheathing material support device of the present invention having the above structure are as follows.

First, by attaching supports with the above structure to both upper and lower ends of the flanges of a backstay such as H-shaped steel, the supports can be attached at any position in the interior and exterior directions of the furnace wall. , using a single type of support and backstay cover, (1) variation in dimensions between the boiler tube and backstay flange (due to construction and tube diameter); (2) variation in backstay flange thickness; (It is possible to adapt to the trend of diversification, especially with the use of computers (3) The diversification of the thickness of sound insulation and heat insulation layers due to noise level regulations.

Next, by making the shape of the support S-shaped with right-angled sides, (1) the lateral ends of both sides of one right-angled U-shaped part of the support are connected to the lateral ends of the flange part of the backstay; (2) The direction of the support can be reversed, so tightening the backstay cover can be done by adjusting the bolt position. The welding position of the support can be changed according to the situation without changing the support. In addition, both upper and lower ends of the deck plate, which is an exterior material, are free from the backstay cover, and the deck plate is attached to the furnace wall boiler tube. It has advantages such as being able to easily absorb thermal expansion.

EMBODIMENT OF THE INVENTION Below, the present invention will be specifically explained in detail with reference to the drawings for one embodiment thereof.

In this embodiment, the furnace wall boiler tube 14 is supported by the tie bar 15, the backstay 2, and its attached parts, and is separated by the heat insulating material 13, which is the exterior material.
12, and the deck plate 12 is covered by a backstay 2 made of H-beam steel.
Supported via support 1, backstay cover 3, seam cover 4 or 8 (see Section 1.2.3)
(see figure).

The joint cover 4 or 8 covers the joint of the backstay cover 3, and the bolt 6 passed through the coaxial hole of the support 1 and the joint cover 4 is inserted into the support 1 through the spring washer 7. The backstay cover 3 is attached to the support 1 by tightening against nuts 5 welded on the inside of the backstay cover 3.

Upper suspension stay cover 3 for backstay 2
A clip 11 is attached to the upper part of the backstay 2 to hold the bottom end of the deck plate 12 above the backstay 2. 3, there is a deck plate 12 below the backstay 2.
A deck plate upper end fold 9 that presses the upper end of the deck plate is fixed to the lower backstay cover 3 by continuous welding 9a.

With this structure, the deck plate 12 is supported by the back stay 2 at both upper and lower ends.

Here, the support 1 is welded to both the upper and lower sides of the flange part of the backstay 2 at the position of the joint cover, that is, the position corresponding to the joint part of the backstay cover.The boiler tube 14 is connected to the tie bar 15 and the backstay 2.
As shown in FIG. 4, tie bar supports 18 and support pins 19 are used to connect the boiler tubes and tie bars, and the flange of the backstay 2 facing the tie bars 15 is properly connected. In order to maintain the proper spacing, a stand of 17 and a tie bar support lug 16 are used, and both are installed at appropriate intervals in the oven width or oven depth direction.

To obtain the above structure, the support 1 is first welded and attached to the flange portion of the backstay 2 at an appropriate position corresponding to the length of the backstay cover 3, the backstay cover 3 is placed, and the A seam cover 4 is placed at the seam,
Insert the bolt 6 into the coaxial hole of the support 1 that corresponds to the joint cover 4, and screw it into the nut 5 pre-welded on the inside of the support 1 to attach the backstay cover 3 to the backstay via the support 1. Attach.

Further, the -L end of the deck plate 12 is pressed by a deck plate upper end fold 9, and the lower end is pressed by a deck plate lower end presser 10 so as to cover the outside of the heat insulating material 13.

Thus, in the furnace wall exterior material support device of the present invention, the heat insulating material 13 is connected to the deck plate via the backstay 2, the support 1 attached to the backstay 2, the backstay cover 3, and the joint covers 4 and 8. Since it can be supported by the upper and lower end folds 9 and 10, it is easy to install, and it can also absorb vertical and horizontal thermal expansion of the furnace wall, and prevents the draining effect from being impaired. It has sufficient strength to allow

[BRIEF DESCRIPTION OF THE DRAWINGS] The x1 side shows a support device for a furnace wall exterior material according to the present invention [7'') i. Fig. 1 is a front view thereof, and Fig. 2
The figure is a cross-sectional view taken along the line ■-■ in Figure 1, Figure 3 is a perspective view showing the main parts, Figure 4 is a perspective view of the backstay cover, etc. removed, and Figure 5 is a back view. It is an enlarged perspective view of the attachment part of the support to a stay. 1... Support, 2... Backstay, 3... Backstay cover, 4, 8...
... Seam cover, 6... Bolt, 9...
・Fold the upper end of the deck plate, 10... Hold down the lower end of the deck plate, 11... Clip, 12...
...Deck plate, 13...Heat insulation material, 1
4...Boiler tube.

Claims (1)

[Claims] 1 In the case where the furnace wall exterior material is supported by the backstay cover and the joint cover through supports attached at appropriate intervals to the sides of the flange of the backstay made of H-shaped steel, the support is One side end face forms a right-angled S-shape, the bottom part of the right-angled U-shaped part of the right-angled S-shape is parallel to the flange part, and most of the support , and the lateral ends of both side portions proximate to the bent portion of one right-angled U-shaped portion of the support are welded to the lateral ends of the flange portion of the backstay. 1. A support device for a furnace wall exterior material, characterized in that the backstay cover and the joint cover are tightened at the bottom portion of the other right-angled U-shaped portion of the support.