Photocatalytic enameled steel plate used in tunnel

Abstract

The utility model relates to the field of enamel steel plates, in particular to a photocatalysis enamel steel plate used in a tunnel, which comprises a steel plate main body, an enamel coating and a photocatalysis coating are sequentially arranged on the upper surface of the steel plate main body, and connecting parts used for connecting adjacent steel plate main bodies are arranged on the left side and the right side of the steel plate main body. According to the enameled steel plate, pollutants in automobile exhaust can be efficiently degraded through the arranged photocatalysis layer so as to purify air in a tunnel, and the enameled steel plate can be conveniently and rapidly connected through the connecting parts arranged on the two sides.

Description

Technical Field

[0001] This utility model relates to the field of enamel steel plates, and more particularly to a photocatalytic enamel steel plate for use in tunnels. Background Technology

[0002] Enameled steel sheets, as a new type of composite material, are mainly made by melting inorganic glassy materials at high temperatures and then solidifying them onto steel sheets. The enamel coating on the steel sheet surface prevents rusting and reduces the formation of an oxide layer when heated, thus improving the steel sheet's resistance to acid and alkali corrosion. Due to these advantages, enamel-lined steel sheets are widely used in tunnel sidewalls to protect tunnel structures and optimize the traffic environment within tunnels. However, enamel-lined steel sheets are difficult to connect, and the high levels of vehicle exhaust and poor ventilation within tunnels can easily lead to severe environmental pollution. Therefore, it is particularly important to explore how to utilize enamel-lined steel sheets to degrade pollutants in vehicle exhaust within tunnels. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a photocatalytic enamel steel plate for use in tunnels, which solves the problems of severe environmental pollution in tunnels and the difficulty in connecting enamel steel plates during use.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides a photocatalytic enamel-lined steel plate for use in tunnels, comprising a steel plate body, an enamel coating on the upper surface of the steel plate body, a photocatalytic coating on the surface of the enamel coating, and connecting components on the left and right sides of the steel plate body for connecting with adjacent steel plate bodies. Because a photocatalytic coating is added to the surface of the enamel-lined steel plate, pollutants in vehicle exhaust in tunnels can be effectively degraded, achieving air purification. The added connecting components also solve the problem of the difficulty in installing traditional enamel-lined steel plates.

[0007] Furthermore, an adhesive layer is provided on the lower surface of the steel plate body, and a transparent plastic film is placed on the surface of the adhesive layer. A tear-off section can be provided on any side of the transparent plastic film according to actual needs. The shape of the tear-off section can be any shape, such as square, semi-circular, or triangular. The plastic film can be peeled off through the tear-off section, allowing the steel plate body to be bonded to the tunnel sidewall through the adhesive layer, making it very convenient to use. The adhesive layer is preferably made of any one of polyvinyl alcohol, polyvinylpyrrolidone, acrylic resin, or vinyl acetate resin.

[0008] Furthermore, a cavity running from front to back through the main body of the steel plate is provided inside the main body of the steel plate. An insulation layer is installed in the cavity. This insulation layer has heat insulation and fireproof functions, which can effectively delay or avoid the occurrence of fire in the tunnel. Rock wool is the preferred material for the insulation layer.

[0009] Furthermore, the enamel coating is an inorganic ceramic layer formed by hot pressing and sintering alumina ceramic powder. The sintering process results in several rough bumps and depressions distributed across the entire upper surface of the inorganic ceramic layer. These bumps and depressions provide a larger area for the photocatalytic coating to come into contact with visible light, which can improve the catalytic degradation efficiency of the photocatalytic coating, thereby improving the overall air purification efficiency of the enamel-coated steel plate.

[0010] Furthermore, the photocatalytic coating is preferably a nano-titanium dioxide coating, which can degrade pollutants under light conditions, thereby purifying the air.

[0011] Furthermore, the connecting components include a connecting seat, a connecting groove, and connecting bolts. The connecting seat and the connecting groove are located on opposite sides of the steel plate body. A first threaded hole is provided at the center of the connecting seat, and a second threaded hole of the same size as the first threaded hole is provided on the upper surface of the steel plate body at the location of the connecting groove. The connecting seats on opposite sides of two adjacent steel plate bodies can be inserted into the connecting groove. The connecting bolts are screwed into the second threaded hole and the first threaded hole in sequence to lock the two adjacent steel plate bodies. When the steel plate body is large, two or more connecting components can also be provided. Locking the two adjacent steel plate bodies by bolt connection not only ensures the connection strength between the steel plate bodies but also simplifies the operation and facilitates installation and disassembly.

[0012] Furthermore, the connecting seat is retractably mounted on one side of the steel plate body. A corresponding groove can be provided on the steel plate body on the side of the connecting seat. The groove has sliding channels on both sides to allow the connecting seat to slide and locking slots to fix the connecting seat. Simultaneously, the connecting seat has hooks on both sides that can slide freely within the sliding channels and can be selectively fixed in the locking slots at the desired positions. When using a single enamel steel plate, the connecting seat is located inside the enamel steel plate body, maintaining a clean and aesthetically pleasing appearance. When using multiple enamel steel plates, the connecting seat extends out of the enamel steel plate and can be inserted into the connecting grooves of adjacent enamel steel plates to connect two adjacent enamel steel plates.

[0013] Furthermore, the connecting seat is detachably connected to the steel plate body. During use, the connecting seat can be snapped into a pre-set slot in the steel plate body. When multiple enamel steel plates do not need to be connected, the connecting seat can be pulled out of the steel plate body. This method can also meet different needs, such as using a single enamel steel plate or using multiple enamel steel plates simultaneously.

[0014] (3) Beneficial effects

[0015] The beneficial effects of this utility model are as follows: The photocatalytic enamel steel plate for tunnels of this utility model purifies the air by adding a photocatalytic coating to the enamel steel plate to degrade pollutants in the tunnel, thus solving the problem of serious environmental pollution caused by excessive vehicle exhaust and poor ventilation in tunnels. At the same time, the connecting components provided on the side of the enamel steel plate also solve the problem of difficulty in connecting traditional enamel steel plates, making the installation of enamel steel plates in tunnels more convenient and faster. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of Example 1 of the photocatalytic enamel steel plate for use in tunnels according to the present invention;

[0017] Figure 2 for Figure 1 A schematic cross-sectional view of the photocatalytic enamel steel plate in the image;

[0018] Figure 3 for Figure 2 A partially enlarged view of the transverse cross-section of the photocatalytic enamel steel plate;

[0019] Figure 4 Two pieces Figure 1 A schematic diagram of the splicing of photocatalytic enamel steel plates;

[0020] Figure 5 This is a schematic diagram of Example 2 of the photocatalytic enamel steel plate for use in tunnels according to the present invention;

[0021] Figure 6 for Figure 5 Schematic diagram of the connecting groove of the photocatalytic enamel steel plate.

[0022] [Explanation of Labels in the Attached Image]

[0023] 1: Steel plate body; 2: Enamel coating; 3: Photocatalytic coating; 5: Connecting parts; 51: Connecting seat; 52: Connecting groove; 53: Connecting bolt; 511: First threaded hole; 512: Second threaded hole; 6: Adhesive layer; 7: Transparent plastic film; 71: Tear-off part; 8: Cavity; 9: Heat insulation layer; Detailed Implementation

[0024] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," and "right" are used interchangeably. Figure 1 The orientation is used as a reference.

[0025] The photocatalytic enamel steel plate for tunnels proposed in this embodiment, by adding a photocatalytic coating and connecting components, not only enables the enamel steel plate to degrade pollutants in vehicle exhaust and purify the air, but also solves the problem of difficulty in connecting traditional enamel steel plates. This type of enamel steel plate is more suitable for use on tunnel sidewalls, protecting the tunnel structure while purifying the air environment inside the tunnel, and is easy to install.

[0026] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0027] Example 1

[0028] Reference Figure 1 , Figure 2 , Figure 3 The schematic diagram shown illustrates an embodiment 1 of a photocatalytic enamel-lined steel plate for use in tunnels. This enamel-lined steel plate includes a steel plate body 1, an enamel coating 2 and a photocatalytic coating 3 sequentially disposed on the upper surface of the steel plate body 1; an adhesive layer 6 and a transparent plastic film 7 are sequentially disposed on the lower surface of the steel plate body 1, and a tear-off portion 71 is provided on the right side of the transparent plastic film 7. The enamel coating 2 is an inorganic ceramic layer formed by hot pressing and sintering alumina ceramic powder. The sintering process results in several rough bumps distributed across the entire upper surface of the inorganic ceramic layer. These bumps provide a larger area for the photocatalytic coating to contact visible light, thereby improving the catalytic degradation efficiency of the photocatalytic coating. The photocatalytic coating 3 is preferably a nano-titanium dioxide coating. Nano-titanium dioxide can degrade pollutants under light conditions, thus purifying the air. The adhesive layer 6 is used to bond the enamel-lined steel plate to the tunnel sidewall. It is formed of any one of polyvinyl alcohol, polyvinylpyrrolidone, acrylic resin, and vinyl acetate resin. In use, the plastic film 7 can be separated from the adhesive layer 6 through the tear-off part 71, and then the enamel-lined steel plate can be bonded to the desired position through the adhesive layer 6. The tear-off part 71 can be any shape such as square, semi-circular, or triangular.

[0029] To facilitate the connection between enamel-lined steel plates, connecting components 5 are provided on the left and right sides of the main body 1 of the photocatalytic enamel-lined steel plate for connecting the main bodies 1. Each connecting component 5 includes a connecting seat 51, a connecting groove 52, and a connecting bolt 53. The connecting seat 51 and the connecting groove 52 are located on opposite sides of the main body 1. In this embodiment, referring to… Figures 1 to 3The connecting seat 51 is located on the right side of the steel plate body 1, and the connecting groove 52 is located on the left side of the steel plate body 1. A first threaded hole 511 is provided at the center of the connecting seat 51, and a second threaded hole 512, the same size as the first threaded hole 511, is provided on the upper surface of the steel plate body 1 at the location of the connecting groove 52. In use... Figure 4 As shown, the connecting seat 51 can be inserted into the connecting groove 52 on the left side of the adjacent steel plate body 1. Connecting bolts 53 are then screwed into the second threaded hole 512 and the first threaded hole 511 in sequence to lock the two adjacent steel plate bodies 1. The left and right positions mentioned here are merely for convenience; the connecting seat 51 can also be located on the left side of the steel plate body 1, and the connecting groove 52 on the right side. When the steel plate body 1 is large, two or more connecting components 5 can also be provided. Locking the two adjacent steel plate bodies using bolt connections not only ensures the connection strength between the steel plate bodies but also simplifies operation and facilitates installation and disassembly.

[0030] In addition, a cavity 8 is provided inside the steel plate body 1, running from front to back through the steel plate body 1. A heat insulation layer 9 is provided inside the cavity 8. This heat insulation layer 9 has heat insulation and fireproof functions, which can effectively delay or avoid the occurrence of fire in the tunnel. Rock wool is preferred as the material of the heat insulation layer 9.

[0031] To meet the diverse application requirements of enamel-lined steel plates, a connecting seat 51 is retractably installed within the main body 1 of the steel plate. A groove is provided on the right side of the main body 1, with sliding channels for the connecting seat 51 and locking slots for fixing it on both sides. The connecting seat 51 also has hooks on both sides, which allow it to slide freely within the sliding channels and can be selectively fixed in the desired slots. When using a single enamel-lined steel plate, the connecting seat 51 slides into the main body and is fixed by the interaction of the hooks and slots, maintaining the clean and aesthetically pleasing appearance of a single plate. When using multiple enamel-lined steel plates, the connecting seat 51 extends out of the main body 1 and is fixed, allowing it to be inserted into the connecting slots 52 of adjacent enamel-lined steel plates for connecting them.

[0032] The following is a brief description of the usage process of this embodiment 1:

[0033] During use, the transparent plastic film 7 on the lower surface of the enamel steel plate needs to be separated from the adhesive layer 6 by the tearing part 71. Then, the enamel steel plate is bonded to the tunnel side wall through the adhesive layer 6. At the same time, the connecting parts 5 between adjacent enamel steel plates are connected, that is, the connecting seat 51 on the opposite side is inserted into the connecting groove 52 of the adjacent steel plate, and then the connecting bolt 53 is screwed into the second threaded hole 512 and the first threaded hole 511 to lock the two adjacent enamel steel plates.

[0034] After installation, the air inside the tunnel can directly contact the photocatalytic layer 3 on the surface of the enamel steel plate. Under light conditions, the photocatalytic layer 3 can degrade pollutants, thereby achieving the effect of purifying the air inside the tunnel.

[0035] Example 2

[0036] Figure 5 , Figure 6 The diagram shown is a schematic of Example 2 of photocatalytic enamel steel plate used in tunnels. The only difference between this example and Example 1 is the connection form of the connecting seat 51 on the main body of the steel plate. The structures of other parts are the same, and will not be described in detail here.

[0037] In this embodiment, the connecting seat 51 is configured to be detachably connected to the steel plate body 1. During use, the connecting seat 51 can be snapped into a pre-set slot in the steel plate body 1. When multiple enamel steel plates do not need to be connected, the connecting seat 51 can be pulled out of the steel plate body 1. This method can also meet different needs, such as using a single enamel steel plate or using multiple enamel steel plates simultaneously.

[0038] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photocatalytic enamel-lined steel plate for use in tunnels, comprising a steel plate body (1) and an enamel coating (2) disposed on the upper surface of the steel plate body (1), characterized in that: The enamel coating (2) has a photocatalytic coating (3) on its surface, and the steel plate body (1) has connecting parts (5) on its left and right sides for connecting with the adjacent steel plate body (1). The enamel coating (2) is an inorganic ceramic layer formed by hot pressing and sintering alumina ceramic powder, and the entire upper surface of the inorganic ceramic layer is covered with several uneven points.

2. The photocatalytic enamel steel plate for use in tunnels according to claim 1, characterized in that: The lower surface of the steel plate body (1) is provided with an adhesive layer (6), and a transparent plastic film (7) is provided on the surface of the adhesive layer (6). A tear-off part (71) is provided on any side of the transparent plastic film (7).

3. The photocatalytic enamel steel plate for use in tunnels according to claim 2, characterized in that: The adhesive layer (6) is formed from any one of polyvinyl alcohol, polyvinylpyrrolidone, acrylic resin, and vinyl acetate resin.

4. The photocatalytic enamel steel plate for use in tunnels according to any one of claims 1-3, characterized in that: The steel plate body (1) has a cavity (8) inside, the cavity (8) runs through the steel plate body (1) from front to back, and a heat insulation layer (9) is provided inside the cavity (8).

5. The photocatalytic enamel steel plate for use in tunnels according to claim 4, characterized in that: The insulation layer (9) is a rock wool insulation layer.

6. The photocatalytic enamel steel plate for use in tunnels according to any one of claims 1-3, characterized in that: The photocatalytic coating (3) is a nano-titanium dioxide coating.

7. The photocatalytic enamel steel plate for use in tunnels according to any one of claims 1-3, characterized in that: The connecting component (5) includes a connecting seat (51), a connecting groove (52), and a connecting bolt (53). The connecting seat (51) and the connecting groove (52) are located on opposite sides of the steel plate body (1). The connecting seat (51) is provided with a first threaded hole (511). The steel plate body (1) is provided with a second threaded hole (512) on the upper surface of the connecting groove position, which penetrates the connecting groove (52) and is the same size as the first threaded hole (511). The connecting seats (51) on the opposite sides of two adjacent steel plate bodies (1) can be inserted into the connecting groove (52). The connecting bolt (53) is screwed into the second threaded hole (512) and the first threaded hole (511) in sequence to lock the two adjacent steel plate bodies (1).

8. The photocatalytic enamel steel plate for use in tunnels according to claim 7, characterized in that: The connecting seat (51) is retractably disposed in the steel plate body (1).

9. The photocatalytic enamel steel plate for use in tunnels according to claim 7, characterized in that: The connecting seat (51) is detachably connected to the steel plate body (1).

Images