JPS6350583Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a chimney in which a plurality of cylindrical chimney units are stacked coaxially by combining panels of appropriate dimensions made of inorganic materials with high heat insulation and fire resistance, and in which the plurality of chimney units abut each other. forming an annular recess and an annular protrusion that can fit into each other on the upper and lower end surfaces of the chimney unit, and forming an annular gap between the outer circumferential surface of the recess and the outer circumferential surface of the protrusion; A chimney body is formed by forming an elastic packing material made of fire-resistant inorganic fiber between the bottom surface of the recess and the top surface of the convex portion, and the chimney body is vertically installed on a building structure. A plurality of chimney mounting brackets are formed in a chimney forming hole, and a plurality of chimney mounting brackets are formed on the outside of the chimney body, and the chimney mounting brackets are connected to the building structure without direct contact between the chimney body and the building structure. The multiple chimney units constituting the chimney body held by the chimney mounting bracket connected to the building structure are not fixed to each other and are flexible structures, and the upper and lower parts of the multiple chimney units The gap formed between the circumferential surfaces of the concave and convex parts that fit together creates an earthquake-resistant structure that effectively prevents damage due to earthquakes, and the upper and lower end surfaces of each chimney unit are fireproof. There is no leakage of the exhaust gas that flows inside the chimney body because it is pressed into contact with the gasket material having elasticity.

The chimney device disclosed in the conventionally known Japanese Patent Application Laid-Open No. 55-116017 stacks the chimney units without fixing them to each other, and connects the arms fixed to the chimney units and the bolts installed in the slab structure. The chimney is connected via a compressed coiled spring, and if the chimney vibrates due to an earthquake or the like, and this vibration resonates with the natural vibration of the coiled spring used, it will cause large vibrations in some parts, especially in the chimney unit. This has the drawback that a large external force is applied to the joints of the chimney units, damaging the joints of the chimney units.Furthermore, the chimney forming method described in Japanese Patent Application Laid-Open No. 58-35319 requires that multiple chimney units be fitted into uneven parts. The chimney with this structure has almost no earthquake resistance and has the disadvantage of being damaged especially at the joints.Furthermore, the chimney device disclosed in Japanese Utility Model Application No. 55-108147 is an independent chimney, and has a fundamentally different configuration from the chimney of the present invention, which is installed inside the building structure, and has drawbacks such as the unclear relationship between the chimney body and the building structure. However, as a result of various experimental studies, the present inventor has developed the present invention which does not have these drawbacks.

Embodiments of the present invention will be explained below with reference to FIGS. 1, 2, and 3. The main material is a lightweight inorganic material with excellent heat insulation and fire resistance, such as calcium silicate, calcium sulfate, etc., and has an appropriate size. In a chimney in which a plurality of cylindrical chimney units 1 are formed by combining panels of
An annular recess 4 and an annular protrusion 5 that can fit into each other are formed on the upper end surface 2 and the lower end surface 3, respectively, and the recess 4
An annular gap 8 is formed between the inner circumferential surface 6 of the convex portion 5 and the outer circumferential surface 7 of the convex portion 5, and between the bottom surface of the concave portion 4 and the top surface of the convex portion 5, an inorganic fiber having fire resistance is formed. The chimney body 10 obtained by inserting and forming a packing material 9 having an elasticity of A plurality of chimney attachment fittings 11 are formed on the outside of the chimney attachment fittings 11, and the plurality of chimney attachment fittings 11 are attached to the building structure 12 by appropriate means without directly contacting the chimney body 10 and the building structure 12. It connects
Note that the small chimney unit is manufactured by integral molding without combining panels.

The present invention provides a chimney in which a plurality of cylindrical chimney units 1 are stacked coaxially by combining appropriately sized panels made of inorganic materials with high heat insulation and fire resistance properties, and the upper and lower portions of the plurality of chimney units 1 that are in contact with each other are An annular recess 4 and an annular protrusion 5 that can be fitted into each other are formed on the end faces 2 and 3, and an annular recess 4 and an annular protrusion 5 are formed between the inner circumferential surface 6 of the recess 4 and the outer circumferential surface 7 of the protrusion 5. A chimney body 10 is formed by forming a gap 8 and forming an elastic packing material 9 made of fire-resistant inorganic fiber between the bottom surface of the recess 4 and the top surface of the convex portion 5.
At the same time, the main body 10 is attached to the building structure 1.
A plurality of chimney mounting fittings 11 formed in chimney forming holes 13 vertically installed in the chimney body 10 and outside the chimney body 10 are attached to the chimney body 10 and the building structure 12.
The chimney is connected to a building structure 12 without direct contact with the chimney, and the plurality of chimney units 1 constituting the chimney body 10 held by the chimney mounting bracket 11 connected to the building structure 12 are fixed to each other. First, it is a flexible structure and is formed on the upper and lower end surfaces 2 and 3 of the plurality of chimney units 1, and is an annular gap formed between the circumferential surfaces 6 and 7 of the fitted recess 4 and protrusion 5. 8, it has an earthquake-resistant structure and is protected from damage caused by earthquakes.
In addition to being able to effectively prevent the occurrence of rupture, the upper and lower end surfaces of each chimney unit are pressed together through a fire-resistant and elastic packing material to provide airtightness and flexibility.

In another embodiment shown in FIGS. 4 and 5, the chimney unit 1 is cylindrical, the same reference numerals as in the previous embodiment indicate the same parts, and the functions and effects are the same as in the previous embodiment.

[Brief explanation of drawings]

Fig. 1 is a partial side view, Fig. 2 is a plan view of the chimney unit, Fig. 3 is a partial enlarged cross-sectional view taken along the line A-A in Fig. 1, and Fig. 4 is a partially cutaway view of the chimney body of another embodiment. FIG. 5 is a plan view of the chimney unit. 1...Chimney unit, 2...Upper end surface, 3...Lower end surface,
4... Concave portion, 5... Convex portion, 6... Inner circumferential surface, 7... Outer circumferential surface,
8...Gap, 9...Packing material, 10...Chimney body, 1
1... Chimney mounting bracket, 12... Building structure, 13... Chimney forming hole.

Claims (1)

[Scope of utility model registration request] In a chimney in which a plurality of cylindrical chimney units 1 are formed by combining appropriately sized panels made of inorganic materials with high heat insulation and fire resistance properties, and such a plurality of chimney units 1 are stacked coaxially, the plurality of chimneys are An annular recess 4 and an annular protrusion 5 that can be fitted to each other are formed on the upper and lower end surfaces 2 and 3 of the chimney unit 1 that abut on the upper and lower surfaces, and the inner peripheral surface 6 of the recess 4 and the protrusion An annular gap 8 is formed between the outer peripheral surface 7 of the protrusion 5 and an elastic packing material 9 made of fire-resistant inorganic fiber is provided between the bottom surface of the protrusion 4 and the top surface of the protrusion 5. At the same time, the main body 10 is formed in a chimney forming hole 13 vertically installed in the building structure 12, and the chimney main body 1 is formed by forming the chimney main body 10.
This chimney is formed by forming a plurality of chimney fittings 11 on the outside of the chimney 0, and connecting the chimney fittings 11 to the building structure 12 without directly contacting the chimney body 10 and the building structure 12.