CN217268586U

CN217268586U - Flue structure

Info

Publication number: CN217268586U
Application number: CN202220457612.3U
Authority: CN
Inventors: 王运堂; 陈勇; 曾立新; 罗学伦; 程杰; 柳霜霜; 林梓儒
Original assignee: Shenzhen Pan China Engineering Group Co ltd
Current assignee: Shenzhen Pan China Engineering Group Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-08-23
Anticipated expiration: 2032-03-04

Abstract

The present invention provides a flue structure, comprising: flue inner chamber, heat preservation, concrete layer, aluminium template and inside and outside supporting component. The inner cavity of a flue formed by combining steel bar truss floor support plates is used as a substitute of a finished flue, a heat insulation layer is constructed close to the inner side, inner support fixing is carried out through angle steel, aluminum die plates on the outer side and back ridge supports are assembled, the inner side and the outer side are fixed through counter-pulling screws, and reinforced concrete is cast in place in the middle. The scheme directly reduces the installation of subsequent finished product flues, and saves a large number of construction periods for project construction; the potential safety hazard of a subsequent finished product flue is reduced, and the construction safety of secondary operation is not needed to be worried; the flue inner cavity and the finished product flue are integrally cast together, so that the occurrence of the conditions of smoke leakage, air leakage and the like of the flue is avoided.

Description

Flue structure

Technical Field

The invention belongs to the technical field of building construction, and particularly relates to a flue structure.

Background

In the prior art, the construction of the flue adopts the assembly of finished flues (finished sheet iron flues, finished stainless steel flues, finished precast concrete flues and the like), and the outside is shielded and protected by a masonry process. If the external scaffold is adopted for the construction of the external facade, the process construction is not influenced. However, in the development of the building industry at present, the aluminum mould climbing frame combined mode is a construction mode which is relatively common in building construction. In this mode, flue construction outside the shear wall has great technical drawbacks. If the mode that each layer is reserved with the overhanging ring beam is adopted, along with the climbing of the climbing frame, the subsequent finished product flue does not have an installation working surface, and the reserved overhanging ring beam has larger potential safety hazard when the flue is constructed; if adopt cast in situ concrete mode cast-in-place entirely, because the structure has sealed after pouring, its inside flue will unable the installation.

Disclosure of Invention

The invention provides a flue structure for solving the technical problems in the background art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a flue structure, the flue structure comprising: the flue comprises a flue inner cavity, a heat insulation layer, a concrete layer, an aluminum template and an inner and outer support assembly; the section of the flue inner cavity is rectangular, and the flue inner cavity comprises a plurality of supporting panels which are combined to form four flue walls of the flue inner cavity; the heat-insulating layer, the concrete layer and the aluminum template are sequentially paved on the outer sides of the four flue walls of the flue inner cavity; the inner and outer supporting components comprise inner supporting pieces, transverse back ridges and vertical back ridges; the inner supporting pieces are arranged on the inner side of each supporting panel and used for fixing the flue inner cavity; the transverse back edge and the vertical back edge are arranged on the outer side of the aluminum template, and the aluminum template is fixed with the transverse back edge and the vertical back edge through fasteners.

Furthermore, at least three transverse back ridges are arranged and are transversely arranged on the outer side of the aluminum template; similarly, the vertical back ridges are at least three and vertically arranged on the outer side of the transverse back ridges.

Further, the inner supporting piece is an angle steel, and one corner edge of the angle steel is fixedly attached to the inner side of the supporting panel.

Further, the support panel is a steel bar truss floor support plate.

Furthermore, the fastener is a split screw, one end of the fastener is fixed on one corner edge of the angle steel through a steel bar sleeve, and the other end of the fastener sequentially penetrates through the heat preservation layer, the concrete layer, the aluminum template, the transverse back edge and the vertical back edge and is fixed on the outer side of the vertical back edge through the steel bar sleeve.

Furthermore, the heat-insulating layer is a polyphenyl particle heat-insulating board.

Further, the concrete layer is cast in place by adopting reinforced concrete; and after the age of the concrete reaches, the outer aluminum template is removed, and the opposite-pulling screw rods on the outer side of the concrete layer are knocked off, so that the outer wall surface is smooth and has no protrusions.

Compared with the prior art, the invention has the beneficial effects that:

1. the flue inner cavity formed by combining the steel bar truss floor bearing plates is used as a substitute of a finished product flue, so that the installation of subsequent finished product flues is directly reduced, the difficulty is reduced for project construction, and a large number of construction periods are saved.

2. The potential safety hazard of follow-up finished product flue (adopt every layer to reserve and establish the collar tie beam mode of encorbelmenting, along with climbing of frame, the installation of follow-up finished product flue will not have the working face), need not to worry the construction safety of secondary operation.

3. The flue inner cavity and the finished product flue are integrally cast together, so that the occurrence of the conditions of smoke leakage, air leakage and the like of the flue is avoided.

4. Compare traditional aluminium template construction, adopt this flue structure can significantly reduce construction cost.

Drawings

FIG. 1 is a schematic diagram of a plane structure of a flue according to a first embodiment of the present invention;

FIG. 2 is an elevation view of the inner cavity wall of the flue in accordance with the first embodiment of the present invention;

FIG. 3 is a vertical cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is a schematic diagram of a planar structure of a flue according to a second embodiment of the present invention;

FIG. 5 is a vertical cross-sectional view taken along line A-A of FIG. 4;

in the figure, 1, a fastener, 2, a vertical back edge, 3, a transverse back edge, 4, an aluminum template, 5, a steel bar sleeve, 6, a concrete layer, 7, an inner support piece, 8, a support panel, 9 and a heat preservation layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1-3, a flue structure comprising: the flue comprises a flue inner cavity, a heat insulation layer 9, a concrete layer 6, an aluminum template 4 and an inner and outer support assembly; the section of the flue inner cavity is rectangular, and the flue inner cavity comprises a plurality of supporting panels 8 which are combined to form four flue walls of the flue inner cavity; and the heat-insulating layer 9, the concrete layer 6 and the aluminum template 4 are sequentially paved on the outer sides of the four flue walls of the flue inner cavity. One side of the flue is a shear wall structure.

The inner and outer supporting components comprise inner supporting pieces 7, transverse back ridges 3 and vertical back ridges 2; the inner supporting pieces 7 are arranged on the inner side of each supporting panel 8 and used for fixing the flue inner cavity; the horizontal back edge 3 and the vertical back edge 2 are arranged on the outer side of the aluminum template 4, and the aluminum template 4 is fixed with the horizontal back edge 3 and the vertical back edge 2 through fasteners 1.

In the structure, the supporting panel 8 is a steel bar truss floor bearing plate, the heat insulation layer 9 is a polyphenyl granule heat insulation plate, and the inner supporting piece 7 is angle steel. As shown in fig. 2, the same side angle edge of the angle steels is fixedly attached to the inner side of the supporting panel 8, a plurality of screw holes are uniformly arranged on the angle edge at intervals, and the interval distance is determined according to design.

As shown in fig. 3, at least three transverse back ridges 3 are arranged and transversely arranged on the outer side of the aluminum template 4; similarly, the vertical back ridges 2 are at least three and vertically arranged on the outer side of the transverse back ridge 3. The arrangement mode can also be that the vertical back edge 2 is arranged on the outer side of the aluminum template 4, and the transverse back edge 3 is arranged on the outer side of the vertical back edge 2. Screw holes are formed in the staggered positions of the transverse back edges 3 and the vertical back edges 2. Fastener 1 is the split screw, and one end is fixed on an angle edge of angle steel through steel sleeve 5, and the other end passes in proper order heat preservation 9, concrete layer 6, aluminum mould 4, the stupefied 3 of horizontal back of the body and the stupefied 2 of vertical back of the body to fix through steel sleeve 5 the outside of the stupefied 2 of vertical back of the body. The connection mode of the steel bar sleeve 5 and the counter-pull screw rod is threaded connection.

Example two

As shown in fig. 4-5, a plurality of angle steels are disposed in the concrete layer 6, and the angle sides of the same side are fixedly attached to the inner side of the supporting panel 8. One end of the fastener 1 is fixed on one corner edge of the angle steel through the steel bar sleeve 5, and the other end of the fastener sequentially penetrates through the heat preservation layer 9, the concrete layer 6, the aluminum template 4, the transverse back arris 3 and the vertical back arris 2 and is fixed on the outer side of the vertical back arris 2 through the steel bar sleeve 5. This scheme sets up fastener 1 in concrete layer 6 to guarantee that flue inner chamber wall is smooth level and smooth, reduce the drag coefficient of discharging fume, more conveniently discharge fume.

As shown in Table 1, the flue structure that this application adopted compares traditional aluminium template construction saving cost more, has reduced the construction degree of difficulty simultaneously, has practiced thrift the time limit for a project.

TABLE 1

The construction method comprises the following steps: taking a flue inner cavity formed by combining steel bar truss floor support plates as a substitute of a finished flue, constructing a heat insulation layer close to the inner side, carrying out inner support fixing by using angle steel, and assembling by using an aluminum die plate and a back ridge support on the outer side; the inner side and the outer side are fixed by adopting counter-pulling screw rods, and the middle part is cast in situ by adopting reinforced concrete. And after the age of the concrete reaches, the outer aluminum template is removed, and the opposite-pulling screw rods on the outer side of the concrete layer are knocked off, so that the outer wall surface is smooth and has no protrusions. The inner side steel bar truss floor bearing plate side does not need to be demoulded.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A flue structure, comprising: the flue comprises a flue inner cavity, a heat insulation layer, a concrete layer, an aluminum template and an inner and outer support assembly;

the section of the flue inner cavity is rectangular, and the flue inner cavity comprises a plurality of supporting panels which are combined to form four flue walls of the flue inner cavity; the heat-insulating layer, the concrete layer and the aluminum template are sequentially paved on the outer sides of the four flue walls of the flue inner cavity;

the inner and outer supporting components comprise inner supporting pieces, transverse back ridges and vertical back ridges; the inner supporting pieces are arranged on the inner sides of the supporting panels and used for fixing the flue inner cavity; the transverse back edge and the vertical back edge are arranged on the outer side of the aluminum template, and the aluminum template is fixed with the transverse back edge and the vertical back edge through fasteners.

2. The flue structure of claim 1, wherein at least three transverse back ridges are arranged, and are arranged transversely on the outer side of the aluminum template; similarly, the vertical back ridges are at least three and vertically arranged on the outer sides of the transverse back ridges.

3. A flue structure as claimed in claim 1, wherein the inner support member is an angle steel, one corner of which is fixedly attached to the inside of the support panel.

4. A flue structure according to claim 3 wherein the support panel is a steel truss decking panel.

5. The flue structure of claim 4, wherein the fastening member is a split screw, one end of the split screw is fixed on one corner edge of the angle steel through a steel sleeve, and the other end of the split screw passes through the heat insulation layer, the concrete layer, the aluminum formwork, the transverse back edge and the vertical back edge in sequence and is fixed on the outer side of the vertical back edge through the steel sleeve.

6. A flue structure according to claim 5 wherein the insulation is polyphenyl particle insulation board.

7. A flue structure according to claim 6, characterized in that the concrete layer is cast in place of reinforced concrete; and after the age of the concrete reaches, the outer aluminum template is removed, and the opposite-pulling screw rods on the outer side of the concrete layer are knocked off, so that the outer wall surface is smooth and has no protrusions.