JPH0429007Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a prefabricated chimney in which a chimney is formed by stacking rectangular frame bodies containing a cylindrical chimney body.

(Prior art and problems to be solved) Conventionally, a prefabricated insulating inner cylinder is inserted into an outer cylinder, and the inner cylinder and the outer cylinder are fixed in adiabatic manner to form a chimney constituent unit, These are stacked coaxially to form a chimney (Special Publication No. 54-5843), and the square outer cylinder is equipped with an insulating cylindrical body, and a reinforcing frame is attached to at least one pair of opposing corners of the square outer cylinder. There is a chimney constructed by connecting chimney units vertically (Utility Model Publication No. 58-34933).

These have the advantage that the chimney can be constructed independently of the construction of the building because it is only necessary to stack up the prefabricated chimney structural unit members, and the construction period is shortened. There were some difficulties in construction, and the earthquake resistance was poor.

(Problems to be Solved by the Invention) The prefabricated chimney of the present invention provides a product that is easy to handle during construction, has improved earthquake resistance, and is economically inexpensive.

(Means for Solving the Problems) The present invention consists of placing angle irons on the vertical ridge line to form a vertical frame column, and placing angle irons at the top and bottom of the column so that the upper surface of the tip is a flat part. A cylindrical chimney element formed by connecting cylindrical heat insulating units with flat connecting bands is inserted into a rectangular frame frame formed by arranging and fixing in a rectangular frame shape to form an upper frame body and a lower frame body. A reinforcing plate is disposed in the transverse direction on the vertical frame column at a position corresponding to the connecting band, and a continuous fixing plate is used to fix the reinforcing plate and the flat connecting band.

This invention will be specifically explained below based on the illustrated embodiments.

1 and 2 show a rectangular parallelepiped framework 1 used in the chimney of the present invention. The frame is made of angle iron (50 x 50 x 5 or 65 x 65 x 6,
2 to 10 m in length) are arranged to form a vertical frame column 2, and angle irons are arranged and fixed in a rectangular frame shape on the upper and lower parts of this column to form an upper frame 3 and a lower frame 4. It is.

As shown in FIG.
are connected by a flat connecting band 7. The cylindrical heat insulating unit 6 is made of a material with excellent heat insulation, fire resistance, and lightness, such as calcium silicate, perlite, and rock wool, and can be made into any type of cylindrical unit, cylindrical half, or cylindrical third. You can use any shape. Its dimensions are
Inner diameter 100~1000mm, wall thickness 50~100mm, length 500~
1000mm is common. The flat connecting band 7 that connects this unit has a thickness of 0.5 to 1 mm and a width of 100 to 100 mm.
It is preferably made of a 300 mm stainless steel or steel plate, and for small diameter units it is best to use a single piece as shown in Figure 4, and for large diameter units it is recommended to use a two piece piece as shown in Figure 5. The flat connecting band 7 is preferably set so that the fixed width of each of the cylindrical insulation units 6 is substantially evenly surrounded as shown by the broken line in FIG. Further, the attachment work can be carried out satisfactorily if the tightening position of the band is set in the delta area on the diagonal of the planar rectangle of the rectangular parallelepiped frame frame 1, as shown in FIGS. 4 and 5.

After inserting the cylindrical chimney body 5 manufactured in this way into the rectangular frame frame 1, a reinforcing plate 8 is attached to the vertical frame column body at a position corresponding to the flat connecting band 7, as shown in FIG. Place it transversely on 2 and fix it. As the reinforcing plate 8, a flat plate, angle steel, channel steel, etc. with a thickness of 3 to 8 mm is used, and the reinforcing plate 8 is fixed by welding, bolting, etc.

Next, the reinforcing plate 8 and the flat connecting band 7 are fixed with a continuous fixing plate 9. Good results can be obtained by using a T-shaped steel material with a thickness of 3 to 8 mm as the continuous fixing plate 9. The continuous fixing plate 9 is fixed to the flat connecting band 7 by welding and to the reinforcing plate 8 by bolting.

The most important points about the prefabricated chimney of this invention are:
The structure is such that the outer periphery of the cylindrical heat insulating unit and the rectangular framework do not come into contact with each other. Generally there is a gap of 5 to 80 mm.

The prefabricated chimney of the present invention has the above-mentioned structure, but when it is put to practical use in a building, etc., the prefabricated chimneys are stacked one after another coaxially to form a chimney of a desired height. ,
The stacked assembled chimneys are fixed by bolts through through holes formed in the flat surfaces of the upper frame 3 and lower frame 4.

(Operations and Effects of the Invention) As described above, the prefabricated chimney of the present invention has a framework structure, so it is lightweight and has space, so it has good lifting performance. In addition, the rectangular structure allows for uprightness,
It has good handling properties such as stable placement and fits well in buildings. In addition, since it has a flexible frame structure and is fixed with connecting and fixing plates that are also flexible, it has excellent earthquake resistance. Furthermore, since the outer periphery of the cylindrical heat insulating unit is not in contact with the frame, it is not directly affected by the vibrations of the frame, so it does not cause cracks due to vibrations.
It has excellent effects.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views of a rectangular frame frame, FIG. 3 is a perspective view of a cylindrical chimney body, and FIGS. 4 and 5 are explanatory diagrams showing the attachment positions of flat connecting bands, FIG. 6 is a perspective view of the assembled chimney of the present invention. 1... Rectangular frame frame body, 2... Vertical frame column body, 3...
... Upper frame body, 4 ... Lower frame body, 5 ... Cylindrical chimney body, 6 ... Cylindrical heat insulation unit, 7 ... Flat connection band, 8 ... Reinforcement plate, 9 ... Connection fixing plate.

Claims (1)

[Scope of utility model registration request] Angle irons are placed on the vertical ridge line to form a vertical frame column, and angle irons are placed in a rectangular frame shape on the top and bottom of this column so that the top surface of the tip is a flat part, and fixed to form the upper frame and the lower part. A cylindrical chimney element formed by connecting cylindrical heat insulating units with a flat connection band is inserted into the rectangular frame forming the frame, and a reinforcing plate is attached to the vertical frame at a position corresponding to the connection band. A prefabricated chimney which is disposed on a column in the transverse direction and is secured between the reinforcing plate and a flat connecting band by a connecting fixing plate.