JPS6113121B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of the roof surface of a furnace wall of a boiler or the like, and particularly relates to an improvement of a supporting device for an exterior material.

In recent years, boilers have become more complex and larger.
Inspection and monitoring of each part of the boiler became increasingly necessary. In particular, as shown in Figures 1 and 2, the boiler furnace 2
It is essential to inspect the electronic in-furnace monitoring device 5 and the on-site in-furnace monitoring device 6 installed at the site. This inspection and monitoring is performed by walking on an exterior material (deck plate) 10 provided above the outside of the boiler, as shown in FIGS. 3 and 4. however,
Conventionally, this exterior material 10 is only supported and fixed at two points, the roof draining cover 11 and the roof end cover 12, and therefore does not necessarily have sufficient strength. A support device E for supporting the exterior material 10 was provided. As shown in FIG. 5, this support device E consists of a pipe support 1 which is erected and fixed to the inner casing 8 by penetrating the heat insulating material 9 using means such as welding.
A T-shaped joint 18b is inserted into 8a, pipe supports 18, 18 are connected to the T-shaped joint 18b, and the exterior material 10 is supported by the pipe supports 18, 18. When installing this device E, it is necessary to use a fixed-length pipe (usually 5500 mm in length) cut to approximately 1400 mm made of iron or other similar material as a pipe support, and furthermore, the cut surface of the pipe must be There was a drawback that the resulting unevenness had to be removed using a grinder or the like. In addition, in order to cope with the expansion and contraction of the inner casing 8 due to heat, the pipe support 18,
A certain distance a is provided between the end of the pipe support 18 and the T-shaped joint 18b, and these distances must be adjusted for each pipe support, and the height of the outer surface of the pipe support 18 must be The disadvantage was that all of them had to be the same, requiring a lot of labor for installation.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide an improved support device that is highly workable without reducing the strength of the furnace wall exterior material.

In short, the present invention uses a small-diameter steel pipe as a pipe support without cutting it to a specified length, and supports this pipe support slidably with a support to absorb the difference in expansion and contraction caused by the expansion and contraction of the inner casing. This is an exterior material support device for the furnace wall roof with improved durability.

Next, embodiments of the present invention will be described based on the drawings.
6 and 7 show a first embodiment of the invention. As shown in FIG. 6, the exterior material 10 on the roof surface includes a roof draining cover 11 and a roof end cover 1.
2 and a pipe support 18.
The roof draining cover 11 is the inner casing 8
It is attached to the L-shaped support 13 which is welded and fixed to.
A nut 14 is welded and fixed in advance to the inner casing side of this L-shaped support 13, and a bolt 15 is screwed and fixed to this nut 14.
One end of the exterior material 10 is slidably supported to absorb the difference in expansion of the inner casing 8. The roof end cover 12 is welded and fixed to the inner casing 8 and attached to the L-shaped support 13a. This L
A nut 14 is welded and fixed to the support 13a in advance, and a bolt 15 is screwed to the nut 14 in the same manner as the L-shaped support 13. A stud bolt 17 is erected and fixed to the roof end cover 12 by welding, and a nut 14a is screwed onto the stud bolt 17 to attach a rain cover 16 and support and fix the other end of the exterior material 10. On the other hand, in Figure 7, 1
8a is a pipe abutment, and 19 is a support, and the pipe support 18 is supported by the pipe abutment 18a and the support 19. Of these, the pipe support 18a penetrates the heat insulating material 9 and is fixed to the inner casing 8 by welding. The support 19 has a ring-shaped portion 1 through which the pipe support 18 is inserted and supported.
9a and an insertion portion 19b connected to this annular portion 19a.
Consists of. When installing this support device,
First, the pipe support 1 installed in the inner casing 8
Supports 19 corresponding to the number of supports 8a are inserted into the pipe support 18, and the insertion portions 19b of the supports 19 are respectively inserted into the pipe supports 18a. Thereafter, the support 19 is welded and fixed to the pipe abutment 18a at a position where the pipe support 18 supports the exterior material 10. The height of the pipe support 18 is preferably determined by, for example, stretching a water line from the lower end A of the roof draining cover 11 to the end B of the roof end cover 12 and assuming the position of the exterior material.

FIG. 8 shows a second embodiment of the present invention, and shows a pipe support 1 based on the first embodiment.
8 and supports 19 are provided in two rows to further reduce the amount of deflection of the exterior material. Therefore, even if the sheathing material 10 on the furnace wall roof surface is a soft sheathing material such as an aluminum keystone plate, it can be carried out satisfactorily.

FIGS. 9 and 10 show a third embodiment of the present invention, in which the annular portion 19a of the support 19 shown in the first and second embodiments is tightly attached to the outer periphery of the pipe support 18. A matching rain gutter-shaped receiving portion 19c is provided. According to this embodiment, it is not necessary to insert the pipe support 18 through the support 19, and the pipe support 18 can be simply placed on the support 19 welded to the pipe abutment 18a, which further simplifies the construction.

11 and 12 show a fourth embodiment, in which the gutter-shaped receiving portion 19c of the third embodiment is replaced with a receiving portion 19d having a U-shaped cross section. In this embodiment, since there is a certain space between the pipe support 18 and the receiving portion 19d, the difference in expansion of the inner casing 8 can be absorbed even better.

FIGS. 13 and 14 show a fifth embodiment, in which the receiving portion is a receiving portion 19e having a V-shaped cross section. The receiving portion having a V-shaped cross section is easy to manufacture, and this embodiment is mainly aimed at simplifying the manufacture of the support 19.

FIGS. 15 and 16 show a sixth embodiment, which is a modification of the fourth embodiment described above, in which the receiving portion is a receiving portion 19f with an L-shaped cross section.

17 and 18 show a seventh embodiment, in which the receiving part (ring-shaped part) of each of the above-described embodiments is removed, and the upper end of the insertion part 19b is connected to the pipe support 18.
The case is shown in which it is shaped so that it touches the outer periphery of the holder and used directly as a receiving part.

FIGS. 19 and 20 show an eighth embodiment, which is a modification of the seventh embodiment, in which the upper end of the insertion portion 19b is shaped into a V-shape to serve as a receiving portion.

According to the present invention, since the support and the pipe support are not fixed, the difference in expansion of the inner casing can be sufficiently absorbed, and structural deformation or destruction of the support device, exterior material, etc. will not occur.

In addition, the height of the support that supports the pipe support can be adjusted at once, and there is no need to cut the small diameter steel pipe used as the pipe support, making the work easier and improving reliability. There is no need to inspect dimensions in the sliding direction. In addition, there are various effects such as the following.

(1) A certain level of strength can be obtained from the exterior material.

(2) The mounting position and height of the support device can be selected arbitrarily.

(3) The load on the roof draining cover is reduced, so the roof draining cover does not bend.
It is possible to ensure a drainage slope on the furnace wall roof surface and prevent rainwater from entering.

(4) The exterior material has not been modified in any way, so the exterior appearance is good.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of the boiler, Figure 2 is a schematic plan view of the furnace wall and roof surface of the boiler shown in Figure 1, and Figure 3 is a schematic side view of the boiler.
The figure is a detailed cross-sectional view of a conventional furnace wall roof surface, FIG. 4 is a detailed cross-sectional view of a furnace wall roof surface showing one of the embodiments of the conventional technology, and FIG. 5 is a longitudinal cross-sectional view of a conventional support device. Detailed views: FIG. 6 is a detailed cross-sectional view of the furnace wall roof surface showing the first embodiment of the present invention, FIG. 7 is a detailed longitudinal cross-sectional view of the first and second embodiments, and FIG. 2
9, 11, 13, 15, 17 and 19 are vertical sectional views of other embodiments of the present invention. 10, 12, 14, and 16.
18 and 20 are cross-sectional views of the other embodiments, FIGS. 9 and 10 show the third embodiment, and FIGS. 11 and 12 show the fourth embodiment. , 1st
Figures 3 and 14 show the fifth embodiment, Figures 15 and 16 show the sixth embodiment, Figures 17 and 18 show the seventh embodiment, and Figures 19 and 20. respectively show the eighth embodiment. 8...Inner casing, 9...Heat insulation material, 1
0... Exterior material (deck plate), 11... Roof draining cover, 12... Roof end cover,
19... Support tool, 19a... Annular part, 19b...
Insertion part, 19c...Gutter-shaped receiving part, 19d...
Receiving part with a U-shaped cross section, 19e... Receiving part with a V-shaped cross section, 19f... Receiving part with an L-shaped cross section.

Claims (1)

[Scope of Claims] 1. In a device that supports an exterior material on a furnace wall roof surface with a roof draining cover and a roof end cover,
One or more height-adjustable supports that penetrate the heat insulating material and are fixed to the inner casing between the roof draining cover and the roof end cover, and pipe supports that are slidably attached to the supports are used to protect the exterior material. A support device for a furnace wall roof exterior material, characterized in that it supports. 2. Claim 1 in which the pipe support is supported by the annular portion of the support device into which the pipe support can be inserted.
A support device for a furnace wall roof exterior material as described in 2. 3. A support device for a furnace wall roof exterior material according to claim 1, wherein a pipe support is mounted on a receiving portion of the support having a U-shaped cross section. 4. A support device for a furnace wall roof exterior material according to claim 1, wherein a pipe support is placed on a receiving portion of the support having a V-shaped cross section. 5. A support device for a furnace wall roof exterior material according to claim 1, wherein a pipe support is placed on a receiving portion of the support having an L-shaped cross section. 6. The support device for a furnace wall roof exterior material according to claim 1, wherein the upper end of the support is shaped so as to be in contact with the outer periphery of the pipe support, and the pipe support is placed on the shaped part. 7. The support device for a furnace wall roof exterior material according to claim 1, wherein the upper end of the support is shaped into a V-shaped cross section, and a pipe support is mounted on the V-shaped portion.