Metal roof snow melting warm air blower

Abstract

The utility model discloses a metal roof snow melting warm air blower which comprises an air duct, the air duct is installed in the middle of the bottom of a roof composite board or installed at the end of the roof composite board, a PTC ceramic heating body is installed on the side wall of the middle of the air duct, and an air blower blowing air to the PTC ceramic heating body is arranged outside the PTC ceramic heating body. An inner cavity of the air duct is communicated with a cavity channel in the roof composite board through a plurality of air guide pipes; the air blower and the PTC ceramic heating body are both connected with a power source through a circuit, and a control switch is installed on the circuit. According to the snow melting warm air blower for the metal roof, the snow melting function can be achieved through circulation of warm air along the roof cavity channel, the stability of roof snow melting treatment is improved, the structure is simple and reasonable, and the installation process is convenient, fast and efficient.

Description

Technical Field

[0001] This utility model relates to a metal roof snow melting and warm air blower, belonging to the field of roof snow melting technology. Background Technology

[0002] Steel structure buildings are widely favored for their convenient construction, low cost, and simple structure, making them a preferred structural form for many construction projects both domestically and internationally. However, this type of construction has both advantages and disadvantages. Compared to concrete and wood, steel structure components have smaller cross-sections and are lighter, facilitating transportation and installation. Furthermore, steel structure components are suitable for mechanized manufacturing in factories, resulting in high precision and production efficiency. However, damage to steel structures from natural disasters is a major headache for many property owners.

[0003] Currently, in order to solve the problem of snow accumulation on steel structure roofs in cold winter regions, people usually use the method of laying heat tracing cables on the roof to melt the snow, so as to achieve normal working requirements such as heating, heat preservation or antifreeze.

[0004] However, the installation of existing heat tracing cables requires high-altitude operations, which is cumbersome and poses a great risk to personal safety. In addition, the heat tracing cables lack corresponding protective devices and are easily affected by the environment, resulting in aging and damage, which leads to poor stability in roof snow melting treatment.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] This utility model addresses the shortcomings of the prior art by providing a metal roof snow melting and warm air blower, which can achieve the snow melting function by utilizing the flow of warm air along the cavity channel of the roof, thereby improving the stability of roof snow melting treatment. It has a simple and reasonable structure and is convenient and efficient to install.

[0007] To solve the above technical problems, the present invention adopts the following technical solution:

[0008] The metal roof snow melting and warm air blower includes an air duct. The air duct is installed at the bottom center of the roof composite panel or at the end of the roof composite panel. A PTC ceramic heating element is installed on the side wall at the center of the air duct. A blower is provided outside the PTC ceramic heating element to blow air onto it. The inner cavity of the air duct is connected to the cavity channel in the roof composite panel through multiple air guide pipes.

[0009] Furthermore, the roof composite panel is composed of a roof surface layer, an insulation layer, and a roof bottom layer. The roof surface layer is a corrugated metal sheet, and multiple cavity channels are formed between the corrugated metal sheet and the insulation layer.

[0010] Furthermore, the air duct has a square tube structure, and both ends of the air duct are sealed.

[0011] Furthermore, a positioning hole for installing a PTC ceramic heating element is provided on the side wall of the air duct. A connecting plate is provided outside the positioning hole. The PTC ceramic heating element is installed on the connecting plate, and the connecting plate is fixedly connected to the outer wall of the air duct.

[0012] Furthermore, the connecting plate is provided with an opening, and a blower is provided outside the opening. The air outlet of the blower is located close to the opening, and the blower is fixedly connected to the connecting plate.

[0013] Furthermore, the air duct has multiple air outlets evenly spaced on its sidewalls along its length, with the air outlets and positioning holes located on opposite or adjacent sidewalls of the air duct.

[0014] Furthermore, an air guide pipe is installed inside the air outlet of the air duct, and the outlet of the air guide pipe is located inside the cavity channel.

[0015] Furthermore, both the blower and the PTC ceramic heating element are connected to the power supply via wiring, and a control switch is installed on the wiring.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0017] The air delivered by the blower is heated by a PTC ceramic heating element. The warm air is then distributed to various air ducts through the air ducts and directly reaches the various cavity channels of the roof composite panel. The warm air will circulate along the cavity channels and use the thermal conductivity of the metal surface of the roof to transfer the heat laterally, so as to achieve an overall snow melting effect on the roof composite panel. The snow melting treatment has good stability.

[0018] The installation process of this utility model only requires inserting the outlet of the air duct into the corresponding cavity channel of the roof composite panel. The installation process is convenient and efficient, with low cost, simple structure, and can be mass-produced by mechanization.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural cross-sectional view of the present invention;

[0022] Figure 3 yes Figure 2 Enlarged view of a local structure in the middle;

[0023] Figure 4 This is a schematic diagram of the warm air flow direction in the usage state of this utility model.

[0024] In the diagram, 1-air duct, 2-positioning hole, 3-PTC ceramic heating element, 4-connecting plate, 5-opening, 6-blower, 7-air outlet, 8-air duct, 9-roof composite panel, 91-roof surface layer, 92-insulation layer, 93-roof bottom layer, 94-cavity channel. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0026] like Figures 1-4 As shown in the figure, this utility model provides a metal roof snow melting and warm air blower, including a duct 1, a PTC ceramic heating element 3 installed on the side wall in the middle of the duct 1, a blower 6 for blowing air onto the PTC ceramic heating element 3, and the inner cavity of the duct 1 is connected to the cavity channel 94 in the roof composite panel 9 through multiple air guide pipes 8.

[0027] The roof composite panel 9 is composed of a roof surface layer 91, an insulation layer 92, and a roof bottom layer 93. The roof surface layer 91 is a metal corrugated sheet, and multiple cavity channels 94 are arranged side by side between the metal corrugated sheet and the insulation layer 92.

[0028] The air duct 1 is installed at the bottom center of the roof composite panel 9 or at the end of the roof composite panel 9.

[0029] The air duct 1 is a square tube, rectangular tube, or round tube, with a square tube being preferred. Both ends of the air duct 1 are sealed.

[0030] The side wall of the air duct 1 is provided with a positioning hole 2 for installing a PTC ceramic heating element 3. A connecting plate 4 is provided outside the positioning hole 2. The PTC ceramic heating element 3 is installed on the connecting plate 4, and the connecting plate 4 is fixedly connected to the outer wall of the air duct 1.

[0031] The connecting plate 4 has an opening 5, and a blower 6 is provided outside the opening 5. The air outlet of the blower 6 is located close to the opening 5, and the blower 6 is fixedly connected to the connecting plate 4.

[0032] The air duct 1 has multiple air outlet holes 7 at equal intervals on its side wall along its length. The air outlet holes 7 and the positioning holes 2 are located on opposite side walls or adjacent side walls of the air duct 1.

[0033] An air guide pipe 8 is installed inside the air outlet 7 of the air duct 1, and the outlet of the air guide pipe 8 is located inside the cavity channel 94.

[0034] The PTC ceramic heating element 3 in this utility model is existing technology. When the PTC ceramic heating element 3 is powered on, it can heat up the air sent by the blower 6. The heating process is flameless and rapid, and the temperature can be controlled between 100℃ and 250℃.

[0035] In this invention, both the blower 6 and the PTC ceramic heating element 3 are connected to a power supply via a circuit, and a control switch is installed on the circuit.

[0036] The specific working principle of this utility model is as follows:

[0037] When encountering blizzard weather, the blower 6 and the PTC ceramic heater 3 are energized simultaneously. After being energized, the blower 6 drives the air to flow, and the PTC ceramic heater 3 heats the air delivered by the blower 6. The warm air is distributed through the air duct 1 to each air guide pipe 8, and then directly reaches each cavity channel 94 of the roof composite panel 9. The warm air will flow along the cavity channel 94 and use the thermal conductivity of the metal of the roof surface layer 91 to transfer the heat laterally, so as to achieve the overall snow melting effect of the roof composite panel 9.

[0038] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A snow-melting and warm air blower for metal roofs, characterized in that: Includes air duct (1), which is installed at the bottom middle position of the roof composite panel (9) or at the end of the roof composite panel (9). A PTC ceramic heating element (3) is installed on the side wall at the middle position of the air duct (1). A blower (6) is provided outside the PTC ceramic heating element (3) to blow air onto it. The inner cavity of the air duct (1) is connected to the cavity channel (94) in the roof composite panel (9) through multiple air guide pipes (8).

2. The metal roof snow melting and warm air blower as described in claim 1, characterized in that: The roof composite panel (9) is composed of a roof surface layer (91), an insulation layer (92) and a roof bottom layer (93). The roof surface layer (91) is a metal corrugated board, and multiple cavity channels (94) are formed between the metal corrugated board and the insulation layer (92).

3. The metal roof snow melting and warm air blower as described in claim 1, characterized in that: The air duct (1) is a square tube structure, and both ends of the air duct (1) are sealed.

4. The metal roof snow melting and warm air blower as described in claim 1, characterized in that: The side wall of the air duct (1) is provided with a positioning hole (2) for installing a PTC ceramic heating element (3). A connecting plate (4) is provided outside the positioning hole (2). The PTC ceramic heating element (3) is installed on the connecting plate (4). The connecting plate (4) is fixedly connected to the outer wall of the air duct (1).

5. The metal roof snow melting and warm air blower as described in claim 4, characterized in that: The connecting plate (4) is provided with an opening (5), and a blower (6) is provided outside the opening (5). The air outlet of the blower (6) is located close to the opening (5), and the blower (6) is fixedly connected to the connecting plate (4).

6. The metal roof snow melting and warm air blower as described in claim 4, characterized in that: The air duct (1) has multiple air outlet holes (7) at equal intervals on the side wall along its length direction. The air outlet holes (7) and the positioning holes (2) are located on opposite side walls or adjacent side walls of the air duct (1).

7. The metal roof snow melting and warm air blower as described in claim 6, characterized in that: The air outlet (7) of the air duct (1) is equipped with an air guide pipe (8), and the outlet of the air guide pipe (8) is located in the cavity channel (94).

8. The metal roof snow melting and warm air blower as described in claim 1, characterized in that: The blower (6) and the PTC ceramic heating element (3) are both connected to the power supply via a line, and a control switch is installed on the line.

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