Ice and snow melting device for green steel structure roof in severe cold area
By combining the heat conduction mechanism and the fan with the solar heating mechanism, the problems of low efficiency and safety hazards of roof snow melting devices in extremely cold regions have been solved, achieving efficient and energy-saving snow melting, adapting to the needs of different snow thicknesses, and reducing construction and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-07
AI Technical Summary
Existing resistance heating devices are inefficient, energy-intensive, and pose safety hazards when used for roof de-icing and snow melting in extremely cold regions. They also fail to meet the matching requirements of intermittent snow melting and continuous power supply.
The heat-conducting mechanism, including insulation pipe, metal heat spreader, heat dissipation fins and fan, is adopted. It combines the synergistic mechanism of solar heating and electric heating wire. Solar radiation energy is collected by a concentrator and air is delivered by the fan to achieve uniform heat diffusion, dynamically control the hot air output and avoid the failure of a single heat source.
It improves photothermal conversion efficiency, reduces energy consumption, ensures stable operation around the clock, enhances durability, avoids energy waste, reduces construction and maintenance costs, and adapts to snow melting needs of different snow thicknesses.
Smart Images

Figure CN224092860U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roof structure technology, and more specifically, to a device for melting ice and snow on green steel structure roofs in frigid regions. Background Technology
[0002] In cold regions, winters are often plagued by snow accumulation on roofs and icicles on eaves. Icicles hanging from roofs can damage eaves, and larger icicles falling can cause personal injury and property damage. In addition, heavy or torrential snow can cause roof deformation or complete roof collapse, resulting in significant personal injury and property damage.
[0003] Current de-icing and snow-melting technologies mainly rely on resistance heating devices, which have significant technical drawbacks: First, the electrothermal conversion efficiency is generally low, resulting in high energy consumption per unit area; second, the intermittent snow-melting demand is mismatched with the continuous power supply mode, leading to a large amount of ineffective energy consumption; third, metal heating elements are prone to electrolytic corrosion in low-temperature and humid environments, posing a risk of electrical leakage. To address these issues, there is an urgent need to develop a new, environmentally friendly roof de-icing system adapted to the climatic characteristics of frigid regions. Utility Model Content
[0004] To overcome the shortcomings of the existing technology, this utility model provides a snow and ice melting device for green steel structure roofs in extremely cold regions. This device achieves multiple technological advantages, including green energy utilization, intelligent heat circulation, and structural protection, thus realizing the dual goals of winter safety protection and energy conservation for building roofs.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A snow and ice melting device for green steel structure roofs in frigid regions includes a heat conduction mechanism located below the roof. The heat conduction mechanism includes an insulation pipe and a metal heat dissipation plate. The insulation pipe has a cylindrical tube structure. The metal heat dissipation plate is horizontally arranged inside the insulation pipe. A corrugated heat absorption plate is provided on the upper part of the metal heat dissipation plate, and several heat dissipation fins are provided on the bottom of the metal heat dissipation plate.
[0007] The heat dissipation fins are arranged at equal intervals at the bottom of the metal heat exchange plate.
[0008] The metal heat spreader is arranged inside the insulation pipe along the diameter of the insulation pipe.
[0009] An electric heating wire is installed inside the metal heat spreader, and the electric heating wire is connected to an electric heater.
[0010] Several vent pipes are connected to the insulation pipe below the metal heat spreader, and a fan is connected to the insulation pipe. The fan is connected to the vent pipe.
[0011] The ventilation pipes are arranged in two rows symmetrically on both sides of the insulation pipe, and the ventilation pipes are attached to the bottom of the roof.
[0012] The top of the insulation pipe is connected to a light guide tube, which extends out of the roof and has a focusing sphere on top.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] The combined design of a concentrating sphere and a light guide tube maximizes the collection and conduction of solar radiation energy to the corrugated heat absorber, significantly improving photothermal conversion efficiency. The multi-stage heat transfer structure of the metal heat spreader and heat dissipation fins, combined with active airflow from the fan, achieves rapid and uniform heat diffusion, reducing the energy consumption of traditional electric heating and aligning with green building energy conservation principles. A synergistic mechanism of solar heating and electric heating wire assistance prioritizes the use of clean energy during periods of ample sunlight, automatically switching to electric heating mode in extreme weather conditions to ensure stable operation around the clock in frigid conditions, effectively avoiding the problem of easy failure of traditional single heat sources. The corrugated heat absorber increases heat absorption efficiency by increasing surface area, and its arrangement along the diameter of the insulation pipe with the metal heat spreader forms a radial heat conduction path. The evenly distributed heat dissipation fins and symmetrical "wing"-shaped vent pipe design ensure even coverage of the roof bottom with hot air, eliminating localized low-temperature dead zones and significantly improving snow melting uniformity. The insulation pipes employ a cylindrical, closed structure, combined with an externally mounted focusing sphere at the top of the light guide tube. This reduces the risk of leakage from roof openings and avoids direct impact of external low temperatures on the core heat exchange components, enhancing the system's durability in extreme cold environments. The vent pipes are positioned close to the lower surface of the roof, and the hot air output intensity can be dynamically controlled by adjusting the fan power, precisely matching the snow melting needs of different snow thicknesses and avoiding energy waste. The overall structure is compact, facilitating integration with steel structure roofs and reducing construction and maintenance costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the heat conduction mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the vent pipe of this utility model;
[0018] Figure 4 This is a top view of the present invention;
[0019] In the diagram: 1 is a focusing sphere, 2 is a light guide tube, 3 is a heat conduction mechanism, 4 is a vent pipe, 5 is an electric heater, 6 is a fan, 7 is an insulation pipe, 8 is a corrugated heat absorption plate, 9 is an electric heating wire, 10 is a heat dissipation fin, and 11 is a metal heat spreader. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0022] like Figures 1 to 4 As shown, a snow and ice melting device for green steel structure roofs in frigid regions includes a heat-conducting mechanism 3, which is located below the roof. The heat-conducting mechanism 3 includes an insulation pipe 7 and a metal heat-dissipating plate 11. The insulation pipe 7 has a cylindrical tube structure, and the metal heat-dissipating plate 11 is horizontally positioned inside the insulation pipe 7. A corrugated heat-absorbing plate 8 is provided on the upper part of the metal heat-dissipating plate 11, and several heat dissipation fins 10 are provided on the bottom of the metal heat-dissipating plate 11. This multi-stage heat transfer structure of the metal heat-dissipating plate 11 and the heat dissipation fins 10, combined with the active airflow of the fan 6, achieves rapid and uniform heat diffusion, reducing the energy consumption of traditional electric heating and conforming to the energy-saving concept of green buildings.
[0023] The insulation pipe adopts a cylindrical closed structure, combined with the layout of an external focusing ball on the top of the light guide tube, which reduces the risk of leakage caused by roof openings and avoids the direct impact of low external temperatures on the core heat exchange components.
[0024] The corrugated heat absorber plate 8 increases the heat absorption efficiency by increasing the surface area, and together with the metal heat spreader plate 11 arranged along the diameter direction of the insulation pipe, a radial heat conduction path is formed.
[0025] Preferably, the heat dissipation fins 10 are arranged at equal intervals on the bottom of the metal heat spreader 11.
[0026] Preferably, the metal heat spreader 11 is arranged inside the heat insulation pipe 7 along the diameter of the heat insulation pipe 7.
[0027] Preferably, an electric heating wire 9 is installed inside the metal heat spreader 11, and the electric heating wire 9 is connected to an electric heater 5. A synergistic mechanism of solar heating and electric heating wire assistance is adopted, prioritizing the use of clean energy when there is sufficient sunlight, and automatically switching to electric heating mode under extreme weather conditions, ensuring stable operation around the clock in frigid conditions and reducing the impact of weather factors on equipment operation.
[0028] Preferably, several vent pipes 4 are connected to the insulation pipe 7 below the metal heat spreader 11, and a fan 6 is connected to the insulation pipe 7. The fan 6 is connected to the vent pipe 4. The vent pipe 4 is arranged close to the lower surface of the roof. The output intensity of hot air can be dynamically controlled by adjusting the power of the fan 6 to accurately match the snow melting needs of different snow thicknesses and avoid energy waste.
[0029] Preferably, two rows of vent pipes 4 are symmetrically arranged on both sides of the insulation pipe 7, and the vent pipes 4 are fitted and installed below the roof. The vent pipes 4 are arranged in a "wing" shape on both sides.
[0030] Preferably, the top of the insulation pipe 7 is connected to a light guide pipe 2, the top of the light guide pipe 2 extends out of the roof, and a light-concentrating ball 1 is provided on the top of the light guide pipe 2.
[0031] The combination of a concentrating sphere and a light guide tube maximizes the collection and conduction of solar radiation energy to the corrugated heat absorber, significantly improving the photothermal conversion efficiency.
[0032] In use, sunlight is concentrated by the concentrator 1 and irradiated onto the wave-shaped heat absorption plate 8, which heats the metal heat spreader 11. Then, the fan 6 blows air into the insulation pipe 7, so that the air comes into contact with the heat dissipation fins 10 and heats up. The air is then heated and melted through the vent pipe 4. Alternatively, the electric heater 5 can drive the electric heating wire 9 to heat the metal heat spreader 11 to assist in melting snow.
[0033] The above description only details the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.
Claims
1. A snow and ice melting device for green steel structure roofs in frigid regions, characterized in that: It includes a heat conduction mechanism (3), which is located below the roof. The heat conduction mechanism (3) includes an insulation pipe (7) and a metal heat spreader (11). The insulation pipe (7) adopts a cylindrical tube structure. The metal heat spreader (11) is horizontally arranged inside the insulation pipe (7). A corrugated heat absorption plate (8) is provided on the upper part of the metal heat spreader (11). Several heat dissipation fins (10) are provided on the bottom of the metal heat spreader (11).
2. The snow and ice melting device for green steel structure roofs in frigid regions according to claim 1, characterized in that: The heat dissipation fins (10) are arranged at equal intervals at the bottom of the metal heat exchange plate (11).
3. The snow and ice melting device for green steel structure roofs in frigid regions according to claim 1, characterized in that: The metal heat spreader (11) is arranged inside the heat insulation pipe (7) along the diameter of the heat insulation pipe (7).
4. The snow and ice melting device for green steel structure roofs in frigid regions according to claim 1, characterized in that: An electric heating wire (9) is provided inside the metal heat spreader (11), and the electric heating wire (9) is connected to an electric heater (5).
5. A snow and ice melting device for green steel structure roofs in frigid regions according to claim 1, characterized in that: Several ventilation pipes (4) are connected to the insulation pipe (7) below the metal heat spreader (11). The insulation pipe (7) is connected to a fan (6), and the fan (6) is connected to the ventilation pipe (4).
6. A snow and ice melting device for green steel structure roofs in frigid regions according to claim 5, characterized in that: The ventilation pipe (4) is arranged in two rows symmetrically on both sides of the insulation pipe (7), and the ventilation pipe (4) is attached to the bottom of the roof.
7. A snow and ice melting device for green steel structure roofs in frigid regions according to claim 1, characterized in that: The top of the insulation pipe (7) is connected to a light guide pipe (2), the top of the light guide pipe (2) extends out of the roof, and a light-concentrating ball (1) is set on the top of the light guide pipe (2).