Novel high-strength heat insulation iron sheet air duct

Abstract

The utility model provides a novel high-strength heat insulation iron sheet air pipe which comprises an iron sheet outer layer, a heat insulation middle layer and a rust-proof inner layer. The outer iron sheet layer is made of a high-strength galvanized iron sheet with the thickness of 0.8-1.2 mm, and the surface of the outer iron sheet layer is polished and pretreated, so that the binding force between the outer iron sheet layer and the heat insulation middle layer can be enhanced; the heat insulation middle layer is made of aerogel felt or a nanometer heat insulation material with the thickness of 10-20 mm and has excellent heat insulation performance; and after the inner antirust layer is subjected to phosphating treatment, the inner antirust layer is additionally coated with an antirust coating. The high-strength heat insulation iron sheet air pipe is easy and fast to manufacture, obvious in heat preservation effect and high in practicability, and manufacturing materials are easy to obtain; the air pipe is high in strength, capable of bearing large air pressure and not prone to deformation; the heat insulation performance is excellent, and the energy loss can be reduced; the anti-rust performance is good, and the service life of the air pipe can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of the design of iron sheet air ducts, and particularly relates to a new type of high-strength heat-insulating iron sheet air duct. Background Art

[0002] In a ventilation system, an iron sheet air duct is a commonly used component. However, traditional iron sheet air ducts often have deficiencies in terms of strength, heat insulation performance, and rust prevention. Insufficient strength can easily lead to deformation of the air duct, poor heat insulation performance will increase energy consumption, and poor rust prevention will shorten the service life. Therefore, the utility model improves the traditional air duct, reduces the labor cost caused by heat preservation work, and at the same time avoids the common engineering problems of easy damage of the heat preservation cotton. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the utility model provides a new type of high-strength heat-insulating iron sheet air duct, which is simple and quick to manufacture, has obvious heat preservation effect, high strength, can withstand large wind pressure without deformation, has excellent heat insulation performance, can reduce energy loss, and also has good rust prevention performance.

[0004] The utility model realizes the above technical purpose through the following technical means.

[0005] A new type of high-strength heat-insulating iron sheet air duct includes an iron sheet outer layer, a heat-insulating intermediate layer, and an anti-rust inner layer; the iron sheet outer layer is made of high-strength galvanized iron sheet, and its surface is pretreated by polishing; the heat-insulating intermediate layer is made of aerogel felt or nano heat-insulating material, and the anti-rust inner layer is phosphated and coated with an anti-rust coating.

[0006] Further, the thickness of the iron sheet outer layer is 0.8 - 1.2 mm.

[0007] Further, the thickness of the heat-insulating intermediate layer is 10 - 20 mm.

[0008] Further, the overall thickness of the anti-rust inner layer is 0.1 - 0.2 mm.

[0009] Further, the iron sheet outer layer, the heat-insulating intermediate layer, and the anti-rust inner layer are tightly combined into a three-layer structure by heating and pressurizing in a composite device to form a composite material.

[0010] Further, the composite material is processed into air ducts of different shapes by an air duct forming machine according to design requirements, and the outer surface of the air duct is treated by painting or galvanizing.

[0011] The utility model has the following beneficial effects:

[0012] The high-strength heat-insulating iron sheet air duct designed by the utility model comprises an iron sheet outer layer, a heat-insulating intermediate layer and an anti-rust inner layer. The iron sheet outer layer has good corrosion resistance and mechanical strength. The heat-insulating intermediate layer can effectively reduce heat transfer. The anti-rust inner layer is specially treated to enhance its anti-rust performance, making the whole air duct have the advantages of high strength, good heat-insulating performance, anti-rust and durability, and is applicable to various complex ventilation systems. Moreover, the production materials of the utility model are easy to obtain, the production is simple and fast, the heat preservation effect is obvious, and the practicability is strong; the air duct has high strength, can withstand large wind pressure and is not easy to deform; it has excellent heat-insulating performance and can reduce energy loss; it has good anti-rust performance and can extend the service life of the air duct. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the novel high-strength heat-insulating iron sheet air duct described in the utility model.

[0014] In the figure: 1 - iron sheet outer layer, 2 - heat-insulating intermediate layer, 3 - anti-rust inner layer. Detailed Description of the Preferred Embodiment

[0015] The following further describes the utility model in conjunction with the drawings and specific embodiments, but the protection scope of the utility model is not limited thereto.

[0016] As Figure 1 shown, the novel high-strength heat-insulating iron sheet air duct described in the utility model comprises an iron sheet outer layer 1, a heat-insulating intermediate layer 2 and an anti-rust inner layer 3.

[0017] As Figure 1 shown, the iron sheet outer layer 1 is made of high-strength galvanized iron sheet with a thickness of 0.8 - 1.2 mm, which reduces the weight while ensuring the strength, and its surface is polished and pretreated to enhance the bonding force with the heat-insulating intermediate layer 2.

[0018] As Figure 1 shown, the heat-insulating intermediate layer 2 is made of aerogel felt or nano heat-insulating material with a thickness of 10 - 20 mm, which can significantly reduce the heat transfer through the air duct and has excellent heat-insulating performance.

[0019] As Figure 1 shown, after the anti-rust inner layer 3 is phosphated and then coated with an anti-rust coating, the overall thickness is 0.1 - 0.2 mm, which can effectively prevent the inner layer of the air duct from rusting.

[0020] Refer to Figure 1, in the manufacturing process of the novel high-strength heat-insulating iron sheet air duct of the present utility model, first, high-strength galvanized iron sheet, aerogel felt (or nano heat-insulating material) and the rust-proof inner layer 3 that has been rust-proof treated are placed in the composite equipment in sequence, and then the three-layer structure is tightly combined by heating and pressurization; then the composite material is put into the air duct forming machine and processed into a circular, rectangular or other shaped air duct according to the design requirements; finally, the outer surface of the air duct is painted or galvanized to complete the manufacturing process.

[0021] The described embodiment is the preferred embodiment of the present utility model, but the present utility model is not limited to the above embodiment. Without departing from the substantial content of the present utility model, any obvious improvement, replacement or variation that those skilled in the art can make belongs to the protection scope of the present utility model.

Claims

1. A new type of high-strength heat-insulating iron sheet air duct, characterized in that, It includes an iron sheet outer layer (1), a heat-insulating intermediate layer (2) and an anti-rust inner layer (3); the iron sheet outer layer (1) is made of high-strength galvanized iron sheet, and its surface is pretreated by polishing; the heat-insulating intermediate layer (2) is made of aerogel felt or nano heat-insulating material, and the anti-rust inner layer (3) is phosphated and coated with an anti-rust coating.

2. The novel high-strength heat-insulating iron sheet air duct according to claim 1, characterized in that, The thickness of the iron sheet outer layer (1) is 0.8 - 1.2 mm.

3. The novel high-strength heat-insulating iron sheet air duct according to claim 1, characterized in that, The thickness of the heat-insulating intermediate layer (2) is 10 - 20 mm.

4. The novel high-strength heat-insulating iron sheet air duct according to claim 1, wherein The overall thickness of the anti-rust inner layer (3) is 0.1 - 0.2 mm.

5. The novel high-strength heat-insulating iron sheet air duct according to claim 1, characterized in that, The iron sheet outer layer (1), the heat-insulating intermediate layer (2) and the anti-rust inner layer (3) are closely combined in a three-layer structure by heating and pressing in a composite device to form a composite material.

6. The novel high-strength heat-insulating iron sheet air duct according to claim 5, characterized in that, The composite material is processed into air ducts of different shapes by an air duct forming machine according to design requirements, and the outer surface of the air duct is treated by painting or galvanizing.

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