CN217518061U - Finished product assembled concrete air duct - Google Patents
Finished product assembled concrete air duct Download PDFInfo
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- CN217518061U CN217518061U CN202123068914.6U CN202123068914U CN217518061U CN 217518061 U CN217518061 U CN 217518061U CN 202123068914 U CN202123068914 U CN 202123068914U CN 217518061 U CN217518061 U CN 217518061U
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Abstract
The utility model discloses a finished product fabricated concrete air duct, which is an air duct with a rectangular cross section and comprises an inner wall formed by a steel plate and an outer wall formed by fireproof coating, wherein a fireproof heat insulation layer formed by fireproof heat insulation materials is arranged between the inner wall and the outer wall; an insertion groove is formed at the bottom of the air duct, and a matched insertion end is formed at the top of the air duct. The utility model provides a finished product fabricated concrete air duct, the air duct has good sealing performance and low air leakage rate, greatly reduces the air supply resistance, and is convenient to install and transport; and the air pipe is integrally formed, so that the field installation is convenient and simple, and the difficulty of field construction is reduced.
Description
Technical Field
The utility model relates to a wind channel technical field especially relates to a finished product assembled concrete wind channel.
Background
In the current ventilation engineering, the pressurized air supply duct is formed by pouring site concrete, the site construction difficulty is high, the engineering quantity is large, the construction period is long, the air supply resistance is large due to the rough interior of the manufactured air duct, the air leakage rate is high, the air duct is relatively troublesome when being installed, the manpower resource is wasted, and the requirements of economy and environmental protection are not met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the technical defect who exists among the prior art, and provide a finished product assembled concrete wind channel, it has good thermal-insulated fire behavior, can be used to the fire control pressurization air supply system of industry, all kinds of buildings.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a finished product fabricated concrete air duct is an air duct with a rectangular cross section and comprises an inner wall formed by a steel plate and an outer wall formed by fireproof paint, wherein a fireproof heat insulation layer formed by fireproof heat insulation materials is arranged between the inner wall and the outer wall; an insertion groove is formed at the bottom of the air duct, and a matched insertion end is formed at the top of the air duct.
The utility model discloses finished product assembled concrete wind channel is used for the wind channel in the fire control ventilation engineering of industry, all kinds of buildings, adopts the steel sheet as the inner wall, and the leakproofness is good, and the air leakage rate is low, has greatly reduced air supply resistance, and the intermediate layer adopts light thermal-insulated fire-resistant light material or aerated concrete, and installation transportation is convenient, and the outer wall adopts fire prevention coating, and fire behavior is good; and the air duct is integrally formed, the field installation is convenient and simple, and the difficulty of field construction is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the fabricated concrete air duct of the present invention.
Fig. 2 is a schematic view of the finished fabricated concrete air duct of the present invention.
Fig. 3 is a schematic diagram of an insertion slot connection node according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the finished assembled concrete air duct of the embodiment of the present invention is a rectangular air duct, the inner wall 1 of the air duct is made of galvanized steel sheet with a thickness of 1.0mm, the outer wall 2 is made of fireproof paint with a thickness of 1.0mm, and the middle interlayer is made of light heat-insulating fireproof light material with a thickness of 80mm or aerated concrete to form a heat-insulating fireproof layer 3; the bottom of the air duct is provided with an insertion groove 5, and the top of the air duct is provided with an insertion end 4.
Of course, the above-mentioned steel plate can be other steel plates, and the thickness of the steel plate, the thickness of the fireproof paint and the thickness of the interlayer are only one preferred embodiment, and the actual manufacturing is not limited thereto.
The galvanized steel sheet with the inner wall thickness of 1.0mm has the thickness of the galvanized layer which is in accordance with the design or contract regulations and is not lower than 80 g/square meter, is a metal inner wall which is made of non-combustible material and has smooth inner wall, and has good sealing performance, low air leakage rate and pipeline design wind speed of not higher than 20 m/s.
The cross section size of the galvanized steel pipe is determined according to the air volume designed by specific projects and the air speed selected by design requirements.
The fireproof coating with the thickness of 1.0mm on the outer wall needs to meet the requirements of national standards, and can reduce the surface flammability of the coated material and retard the rapid spread of fire so as to improve the fire resistance limit of the coated material.
The light heat-insulating fireproof light material or the aerated concrete with the middle interlayer thickness of 80mm meets the standard requirement on heat-insulating fireproof performance, and is light in material and convenient to install and transport.
As an alternative embodiment, referring to fig. 3, the section of the insertion end at the top of the air duct is trapezoidal, the upper side of the trapezoid is 20mm long, the lower side of the trapezoid is 40mm long and 40mm high, the insertion groove corresponds to the insertion end, and the inclined surface is a frosted surface, so that the installation is convenient.
And the splicing seams of the finished product fabricated concrete air duct can be filled by caulking materials.
Example (b):
designing a smoke exhaust system with smoke exhaust quantity of 13000m3/h, wherein the design wind speed of the pipeline is not more than 20m/s, selecting a galvanized steel plate pipeline with the section size of 630x320mm, namely adopting a galvanized steel plate with the section size of 630x320mm and the thickness of 1.0mm as the inner wall, adopting a fireproof coating with the thickness of 1.0mm as the outer wall, and adopting a light heat-insulating fireproof light material or aerated concrete with the thickness of 80mm as the intermediate layer; when the air duct is installed on site, the air ducts can be automatically connected through the seaming only by inserting and connecting the bottoms and the tops of the two air ducts with the same specification, and the splicing seams of the air ducts are filled by caulking materials.
The utility model discloses finished product assembled concrete wind channel is used for the wind channel in the fire control ventilation engineering of industry, all kinds of buildings, adopts the steel sheet as the inner wall, and the leakproofness is good, and the air leakage rate is low, has greatly reduced the air supply resistance, and the intermediate layer adopts light heat-insulating fire-resistant light material or aerated concrete, and installation transportation is convenient, and the outer wall adopts fire retardant coating, and fire behavior is good; and the air duct is integrally formed, the field installation is convenient and simple, and the difficulty of field construction is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.
Claims (8)
1. A finished product fabricated concrete air duct is characterized in that the air duct is an air duct with a rectangular cross section and comprises an inner wall formed by a steel plate and an outer wall formed by fireproof paint, and a fireproof heat insulation layer formed by fireproof heat insulation materials is arranged between the inner wall and the outer wall; an insertion groove is formed at the bottom of the air duct, and a matched insertion end is formed at the top of the air duct.
2. The finished fabricated concrete air duct of claim 1, wherein the inner wall is galvanized steel.
3. The finished fabricated concrete air duct of claim 2, wherein the galvanized steel sheet has a thickness of 1.0 mm.
4. The finished fabricated concrete air duct according to any one of claims 1-3, wherein the thickness of the fireproof and thermal insulation layer is 80mm, and the thickness of the outer wall is 1.0 mm.
5. The finished fabricated concrete wind channel of claim 4, wherein the cross-section of the insertion end of the wind channel top is trapezoidal.
6. The finished fabricated concrete wind channel of claim 5, wherein the trapezoid has an upper side length of 20mm, a lower side length of 40mm, and a height of 40 mm.
7. The finished fabricated concrete air duct of claim 6, wherein the inclined surfaces of the trapezoids are frosted surfaces.
8. The finished fabricated concrete air duct of claim 1, wherein the joints of the multi-segment finished fabricated concrete air duct are filled with caulking materials after being inserted through the insertion groove and the insertion end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123068914.6U CN217518061U (en) | 2021-12-08 | 2021-12-08 | Finished product assembled concrete air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123068914.6U CN217518061U (en) | 2021-12-08 | 2021-12-08 | Finished product assembled concrete air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217518061U true CN217518061U (en) | 2022-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123068914.6U Active CN217518061U (en) | 2021-12-08 | 2021-12-08 | Finished product assembled concrete air duct |
Country Status (1)
| Country | Link |
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| CN (1) | CN217518061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2797151C1 (en) * | 2022-12-15 | 2023-05-31 | Михаил Олегович Штокман | Ventilation unit with internal polymer coating |
-
2021
- 2021-12-08 CN CN202123068914.6U patent/CN217518061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2797151C1 (en) * | 2022-12-15 | 2023-05-31 | Михаил Олегович Штокман | Ventilation unit with internal polymer coating |
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