Pavement ice-melting hot-melting blanket and pavement snow-melting structure

Abstract

The invention discloses a road surface ice melting hot melting blanket and a road surface snow melting structure, belongs to the technical field of road and bridge snow melting and deicing, and is mainly used for road and bridge snow melting and deicing. The pavement ice-melting hot melting blanket comprises a heating blanket and a heat supply device, the heating blanket comprises a surface layer, a heating layer and a bottom surface layer which are arranged from top to bottom, the surface layer and the bottom surface layer are made of compression-resistant, shear-resistant and wear-resistant flexible materials, the heating layer comprises heat pipes, and the heat pipes are connected with the heat supply device. The heat pipe comprises an evaporation pipe, a heating loop and a liquid return pipe which are sequentially communicated, and a positioning installation mechanism is arranged on the heating blanket. The invention further provides a road surface snow melting structure which comprises a road surface and a road surface ice melting and hot melting blanket, the heat supply device is arranged on the outer side of the road surface, the positioning installation mechanism is detachably connected with the road surface, and the heating blanket is laid on the surface of a road surface layer or buried at the position 3-10 cm away from the lower layer of the road surface in the road surface wheel track direction. The heating blanket can be quickly positioned and installed on a road surface layer or a lower road surface layer, the ice melting effect is good, and the built road and bridge structure does not need to be damaged in the installation process.

Description

Technical Field

[0001] This invention relates to the field of road and bridge snow melting and de-icing technology, and in particular to a road surface de-icing thermal melting blanket and road surface snow melting structure. Background Technology

[0002] In cold weather, ice and snow covering roads and bridges pose a dual threat to traffic flow and the structural safety of roads and bridges. First, ice and snow significantly reduce the coefficient of friction on the road surface, making vehicles more prone to skidding and increasing braking distance, leading to rear-end collisions, rollovers, and other traffic accidents. Simultaneously, snow and ice on the road surface can obscure road markings, potholes, and other road conditions, further exacerbating traffic risks. For bridges, the bridge deck structure is typically higher than the ground, experiencing higher wind speeds and lower temperatures, resulting in faster and thicker snow and ice accumulation. Second, water from melting snow and ice seeps into the pores or cracks in the road surface structure. At low temperatures, the ice expands in volume, compressing and cracking the road surface material. Repeated freeze-thaw cycles can lead to loosening, peeling, and potholes in the road and bridge surfaces.

[0003] Currently, heat pipes are commonly used for snow and ice melting on roads and bridges, as described in patent applications 202020688447.3, 202020689554.8, and 202020689554.8. In these applications, the heat pipes are all located below the asphalt layer, i.e., below the road surface. This arrangement presents the following problems:

[0004] The installation of heat pipes requires individual installation during road construction. Construction workers must measure and adjust the spacing and location of the heat pipes before installation, a time-consuming and inconvenient process. The heat generated by the heat pipes must penetrate the base layer and subbase layer before reaching the asphalt surface, resulting in significant heat transfer loss and low snow-melting efficiency. Furthermore, installing heat pipes under the asphalt pavement necessitates trenching or drilling in the base or subbase. If, after road construction, climate change necessitates the installation of heat pipes for snow and ice melting, it will damage the original roadbed's density and integrity. Over time, the area around the heat pipes is prone to loosening and settlement of the roadbed material, significantly impacting the stability of the pavement structure. Moreover, errors in the spacing and burial depth of the heat pipes can lead to uneven heat distribution on the road surface, resulting in localized snow melting and continued icing, posing a continued safety hazard for drivers. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a road surface de-icing thermal blanket and a road surface snow melting structure, which are mainly used for snow melting and de-icing of roads and bridges, so as to achieve the purpose of quickly installing the road surface de-icing thermal blanket on the road surface. For existing roads and bridges, it can achieve the purpose of quick installation without damaging the original structure and immediate use. For roads and bridges under construction, it can achieve the purpose of quick installation and good snow melting and de-icing effect without adjusting the position and spacing of the heat pipes.

[0006] This invention discloses a road surface de-icing thermal melting blanket, comprising a heating blanket and a heating device. The heating blanket includes a surface layer, a heating layer, and a bottom layer arranged from top to bottom. The surface layer and the bottom layer are made of a pressure-resistant, shear-resistant, and wear-resistant ethylene polymer material. The heating layer includes heat pipes laid on top of the bottom layer. Each heat pipe includes an evaporation pipe, a heating circuit, and a return pipe connected in sequence. The heating circuit is arranged in a serpentine pattern on top of the bottom layer. The evaporation pipe and the return pipe are connected to the heating device. The heating blanket is also provided with a positioning and installation mechanism for installing the heating blanket on the road surface.

[0007] Furthermore, a mesh layer is provided between the surface layer and the heating layer, the mesh layer including a mesh plate laid on top of the heating layer.

[0008] Furthermore, the ethylene polymer material includes at least one of polytetrafluoroethylene and polyethylene.

[0009] Furthermore, the heat pipe is made of copper or 304 stainless steel.

[0010] As a preferred embodiment, the heat pipe has a diameter of 5-10 mm and a wall thickness of 1 mm.

[0011] As a preferred embodiment, the heating blanket is 10 cm thick.

[0012] The present invention also provides a road surface snow melting structure, including a road surface and a road surface ice melting and heating blanket as described in any of the above descriptions. The road surface includes a road surface layer and a lower road surface layer from top to bottom. The heating device is disposed on the outer side of the road surface. The positioning and installation mechanism is detachably connected to the road surface to install the heating blanket. The heating blanket is evenly laid on the surface of the road surface layer along the wheel track direction, or the heating blanket is evenly buried in the lower road surface layer along the wheel track direction at a distance of 3-10 cm from the bottom surface of the road surface layer.

[0013] Furthermore, the positioning and installation mechanism includes positioning posts arranged at the corners of the heating blanket. The positioning posts are located at the bottom of the bottom layer, and the road surface has positioning grooves adapted to the positioning posts. The positioning posts are inserted into the positioning grooves.

[0014] As a preferred embodiment, the positioning and installation structure further includes auxiliary installation columns, which are located at the bottom of the bottom layer and on both sides of the heating blanket; at least two auxiliary installation columns are evenly distributed along the length of the heating blanket, and installation grooves adapted to the auxiliary installation columns are opened on the road, with the auxiliary installation columns inserted into the installation grooves.

[0015] The beneficial effects of this invention are: the road de-icing and heat-melting blanket provided by this invention can be prepared in the factory in advance to fix the position of the heat pipes inside the blanket, and then transported to the installation location for paving along the road surface wheel tracks; it can achieve rapid positioning and installation on existing roads and bridges without damaging the original road structure. It only requires setting installation points corresponding to the positioning and installation mechanisms on the heat-melting blanket at the locations where it needs to be installed. There is no need to excavate the asphalt layer for heat pipe installation under the road surface; it is ready to use immediately after installation, without requiring significant manpower and resources to modify the road surface structure. Designed for existing roads and bridges requiring de-icing only in winter, this system addresses the challenges of complex installation, long construction periods, and high roadbed reconstruction costs associated with traditional de-icing devices. Its layered structure adapts to road conditions, sandwiching a heating layer between a surface layer and a bottom layer made of a pressure-, shear-, and wear-resistant ethylene polymer material. This ensures the heating blanket meets the mechanical performance requirements of road surface compaction after installation, preventing damage to the heat pipe units under vehicle pressure. Simultaneously, it ensures the heat generated by the heating layer directly melts snow and ice, minimizing heat loss and guaranteeing effective de-icing. For roads and bridges under construction, workers can directly install the de-icing heating blanket within the unfinished concrete surface. The pre-prepared heating blanket in the factory has its heat pipe positions already adjusted and fixed according to requirements, eliminating the need for secondary adjustments during on-site installation. This results in rapid installation and excellent de-icing performance. Attached Figure Description

[0016] Figure 1 : A schematic diagram of a road surface de-icing thermal melting blanket.

[0017] Figure 2 Cross-sectional view of a road surface de-icing thermal melting blanket.

[0018] Figure 3 : Road surface de-icing and de-icing blankets are road surface de-icing structures laid on the surface of the road layer.

[0019] Figure 4 : Road surface de-icing and heat-melting blankets are road surface snow-melting structures buried in the lower layer of the road surface.

[0020] Reference numerals: 1-Heating blanket; 11-Surface layer; 12-Heating layer; 121-Heating circuit; 122-Evaporation pipe; 123-Return pipe; 13-Bottom layer; 14-Grid layer; 15-Installation mechanism; 151-Positioning column; 152-Auxiliary installation column; 2-Heating device; 3-Road surface; 31-Wheel track; 32-Road surface layer; 33-Lower road surface layer; 331-First poured concrete surface layer; 332-Second poured concrete surface layer. Detailed Implementation

[0021] The present invention will be further described below.

[0022] This invention provides a road surface de-icing thermal blanket, mainly used for de-icing and snow melting on roads. It includes a heating blanket 1 and a heating device 2. The heating blanket 1 comprises a surface layer 11, a heating layer 12, and a bottom layer 13 arranged from top to bottom. Both the surface layer 11 and the bottom layer 13 are made of a pressure-resistant, shear-resistant, and wear-resistant ethylene polymer material. The heating layer 12 includes heat pipes laid on top of the bottom layer 13. Each heat pipe includes an evaporation pipe 122, a heating circuit 121, and a return pipe 123 connected in sequence. The heating circuit 121 is arranged in a serpentine pattern on top of the bottom layer 13. The evaporation pipe 122 and the return pipe 123 are connected to the heating device 2. The heating blanket 1 is also provided with a positioning and mounting mechanism 15 for installing the heating blanket 1 on the road surface 3.

[0023] like Figure 1 , Figure 2As shown, the road surface de-icing thermal blanket includes a heating blanket 1 and a heating device 2. The heating blanket 1 includes a surface layer 11, a heating layer 12, and a bottom layer 13 arranged sequentially from top to bottom. The layered structure design is adapted to the working conditions of the road surface 3. The surface layer 11 and the bottom layer 13 are made of ethylene polymer materials that are resistant to compression, shear, and wear. They not only meet the mechanical performance requirements of the road surface 3 under vehicle rolling, but also have the ability to flexibly adapt to the deformation of the road surface 3, avoiding the problem of easy cracking of rigid structures. The surface layer 11 and the bottom layer 13 can be made of ethylene polymer materials such as polyethylene, polytetrafluoroethylene, and ultra-high molecular weight polyethylene. These materials are not only resistant to compression, shear, and wear, but also have the characteristics of impact resistance, self-lubrication, high toughness, not easy to break, and low water absorption. They have a strong repulsion to polar solvents (such as water) and extremely low surface energy. In the preparation of the heating blanket 1, when injection molding the surface layer 11 and the bottom layer 13, the heating layer 12 is placed between them, so that it is integrally injection molded with the surface layer 11 and the bottom layer 13, ensuring the stability of the layered structure of the heating blanket 1. The heating layer 12 adopts a serpentine heating circuit 121, which greatly increases the contact area between the heating layer 12 and the road surface 3, realizes uniform heat transfer, and avoids incomplete local ice melting. The closed-loop design of the evaporation pipe 122, the return pipe 123 and the heating device 2 ensures a continuous circulation of heat supply and ensures uniform snow and ice melting. The heating device 2 adopts an existing device adapted to the closed-loop structure of the heat pipe unit to ensure a stable heat supply. Specifically, existing air heat pumps, electric heating devices, hot water boiler heating devices, etc. can be used. The heating device 2 is connected to the heating blanket 1 through a closed-loop heat pipe system. The evaporator pipe 122 absorbs the heat provided by the heating device 2, causing the working medium to vaporize and flow along the heating circuit 121, releasing heat to heat the road surface 3. After the steam condenses, it returns to the heating device 2 through the return pipe 123 for reheating, forming a continuous heat supply chain. This closed-loop design ensures a stable supply and uniform distribution of heat, improving the efficiency of snow and ice melting. A positioning and installation mechanism 15 that can be detachably connected to the road surface 3 is also provided, which facilitates the quick and easy fixing of the heating blanket 1 at the designated location on the road surface 3 where snow and ice melting is required. This facilitates construction, installation, and subsequent disassembly and maintenance, solving the problems of complex installation and long construction period of traditional ice melting devices. In particular, for some existing roads and bridges that only need ice melting in winter, it is easy to install, disassemble, and store, without occupying the road surface 3 for a long time or modifying the roadbed, thus saving construction costs.This road surface de-icing and heat-melting blanket structure can be quickly positioned and installed on existing roads and bridges without damaging the original road surface 3 structure. It only requires setting up installation points corresponding to the positioning and installation mechanisms 15 set on the heating blanket 1 at the locations where the road surface de-icing and heat-melting blanket needs to be installed. There is no need to excavate the asphalt layer to install the heat pipes under the road surface 3. It can be used immediately after installation without spending a lot of manpower and resources to modify the structure under the road surface 3. It is suitable for existing roads and bridges that only need de-icing in winter, solving the problems of complex installation, long construction period and high roadbed modification costs of traditional de-icing devices. The layered structure design is adapted to the working conditions of the road surface 3. The heating layer 12 is sandwiched between the surface layer 11 and the bottom layer 13, which are made of ethylene polymer material that is resistant to compression, shear and wear. This ensures that the heating blanket 1 meets the mechanical performance requirements of the road surface 3 after being laid on the road surface 3, avoids damage to the heat pipe unit of the heating layer 12 under vehicle pressure, and ensures that the heat generated by the heating layer 12 directly acts on the road surface 3 to melt snow and ice, reducing heat loss and ensuring the effect of snow and ice melting. For roads and bridges under construction, the heating blankets can be prepared in advance in the factory, and the position of the heat pipes can be adjusted in advance according to the road requirements during the preparation process. There is no need for construction workers to make secondary adjustments on site. Construction workers can directly place the heating blankets at the positions corresponding to the vehicle wheel tracks on the unpoured concrete surface. The laying speed is fast, the installation is quick, and the snow melting and ice-melting effect is good.

[0024] Working principle:

[0025] To further enhance the structural strength of the road surface de-icing and thermal melting blanket, such as Figure 2 As shown, a mesh layer 14 is also provided between the surface layer 11 and the heating layer 12. The mesh layer 14 includes a mesh plate laid on top of the heating layer 12. The mesh plate can effectively support the surface layer 11, disperse the local stress caused by vehicle rolling, and prevent the surface layer 11 from being damaged due to stress concentration. At the same time, it protects the heating layer 12 below from damage caused by external pressure. Meanwhile, the porous structure of the mesh layer 14 can reduce heat loss during the transfer process and guide heat to diffuse evenly upward, improve heat utilization, and further optimize the ice melting effect.

[0026] As a preferred embodiment, the flexible material includes at least one of polytetrafluoroethylene (PTFE) and polyethylene. The surface layer 11 and the bottom layer 13 are made of PTFE or polyethylene. These materials possess excellent compressive, shear, and impact resistance properties to meet the mechanical requirements of vehicle rolling on the road surface 3. They also have self-lubricating properties to reduce frictional resistance with vehicle tires, lower the wear rate, and extend service life. Furthermore, they are tough and not easily broken, allowing them to be rolled up. When the road surface de-icing heating blanket is not needed, the heating blanket 1 laid on the road surface 3 can be rolled into a cylindrical shape for easy storage and transportation. It should be noted that the degree of rolling of the heating blanket 1 is low; for example, when a 10m long heating blanket 1 is rolled into a cylindrical shape, the diameter of the cylinder is approximately 3.18m. Of course, it can also be laid flat and stacked for storage and transportation. Moreover, PTFE and polyethylene have extremely low surface energy, meaning almost no substance can adhere to their surfaces. They also exhibit strong repulsion against polar solvents (such as water), resulting in extremely low surface energy. Therefore, after the heating layer 12 melts the ice and snow covering the surface layer 11, it will slide directly to both sides of the road and will not remain on the surface layer 11 to freeze again, thus ensuring the ice melting effect.

[0027] To ensure the heating effect of the road surface de-icing blanket, the heat pipes are made of copper or 304 stainless steel. Copper pipes have high thermal conductivity, which can quickly transfer heat and increase the de-icing speed. 304 stainless steel is resistant to corrosion in humid and salty environments, preventing the heat pipes from rusting and leaking. At the same time, both copper pipes and 304 stainless steel materials have sufficient structural strength to meet the requirements of vehicles driving on them. As a preferred method, to facilitate the rolling up and storage of the unused heating blanket 1, while ensuring the heating effect of the heating layer 12, the diameter of the heat pipe is 5-10mm, and the wall thickness of the heat pipe is 1mm. The 5-10mm heat pipe diameter ensures smooth medium circulation while making the heating layer 12 thinner, avoiding the heating blanket 1 being too thick and affecting the flatness of the road surface 3. The 1mm heat pipe wall thickness balances compressive strength and thermal conductivity efficiency, and also makes it easy for operators to roll up and store the heating blanket 1. However, the degree of rolling up the heating blanket 1 is low. For example, when the heating blanket 1 with a length of 10m is rolled into a cylindrical shape, the diameter of the cylinder is approximately 3.18m. Furthermore, to ensure the smoothness of the road surface 3, the thickness of the heating blanket 1 is limited to 10cm. A thickness of 10cm can accommodate a multi-layer structure without excessively raising the height of the road surface 3, thus not affecting vehicle driving safety; and this thickness can reduce heat loss to the underground soil, allowing more heat to be used for melting ice on the road surface 3, eliminating the need for underground pipe insulation design, further simplifying the structure and reducing heat loss in scenarios without roadbed reconstruction.

[0028] The present invention also provides a road surface snow melting structure, including a road surface 3 and a road surface ice melting and heat melting blanket as described above. The road surface 3 includes a road surface layer 32 and a road surface lower layer 33 from top to bottom. The heating device 2 is disposed on the outside of the road surface 3. The positioning and installation mechanism 15 is detachably connected to the road surface 3 to install the heating blanket 1. The heating blanket 1 is evenly laid on the surface of the road surface layer 32 along the wheel tracks 31 on the road surface 3, or the heating blanket 1 is evenly buried in the road surface lower layer 33 at a distance of 3-10 cm from the ground of the road surface layer 32 along the wheel tracks 31 on the road surface 3.

[0029] like Figure 3 As shown, for existing roads and bridges, the heating device 2 of the road surface de-icing blanket is installed on both sides of the road surface 3. This arrangement does not affect vehicle traffic and avoids damage from vehicle traffic. The overall structure does not require modification of the substructure of the road surface 3. The heating blanket is only laid in winter and disassembled and stored in non-winter periods, significantly saving manpower and resources. This design is suitable for areas where de-icing is only required in winter. The heating blanket 1 is detachably connected to the road surface layer 32 through its own positioning and installation mechanism 15, enabling a cyclical use mode of winter installation and non-winter storage. This avoids the heating blanket 1 aging due to long-term exposure to the non-snowy season environment and saves on long-term maintenance costs after roadbed reconstruction. At the same time, laying the heating blanket 1 along the wheel track 31 direction effectively reduces laying costs. The wheel track 31 refers to the area left by the tires on the surface of the road surface layer 32 when a vehicle travels on the road surface 3. Laying the heating blanket 1 along the wheel track 31 direction can prioritize melting ice and snow in key areas where vehicles run over the vehicle, improving the anti-skid effect, while reducing the area of ​​the heating blanket to be laid. Combined with the design without roadbed reconstruction, this further reduces the overall project cost and is suitable for short-term de-icing needs in winter. This road snow melting structure achieves the snow melting and ice removal needs of the road surface 3 by laying a road ice melting and heat melting blanket along the wheel tracks 31 on the surface of the road surface layer 32. It is easy to install and disassemble, and does not require a lot of manpower and material resources to modify the structure of the lower layer 33 of the road surface 3. That is, there is no need to remove the asphalt layer to install the heat pipe in the lower layer 33 of the road surface. It is suitable for the needs of existing road and bridge areas that only need ice melting in winter, and solves the problems of complex installation, long construction period and high roadbed modification cost of traditional ice melting devices.

[0030] like Figure 4As shown, for roads and bridges under construction, the heating device 2 of the road surface de-icing blanket is installed on both sides of the road surface 3. This installation does not affect vehicle traffic and avoids damage caused by vehicles running over it. The heating blanket 1 is detachably connected to the lower layer 33 of the road surface through its own positioning and installation mechanism 15, so that construction workers can quickly place the heating blanket 1 at the corresponding position in the lower layer 33 of the road surface without multiple adjustments. At the same time, when the concrete road surface is poured for the second time, the position of the heating blanket 1 will not be shifted, and the construction workers will not need to readjust the installation position of the heat pipe. Meanwhile, laying the heating blanket 1 along the wheel track 31 effectively reduces the laying cost. Laying the heating blanket 1 along the wheel track 31 can prioritize melting ice and snow in key areas where vehicles run over it, improve the anti-skid effect, and at the same time reduce the area of ​​the heating blanket to be laid, further reducing the overall project cost. The snow melting structure uses a pre-fabricated heating blanket 1 to fix the position of the heat pipe 2. During installation, simply align the installation positioning mechanism 15 on the heating blanket 1 with the corresponding installation point on the lower layer 33 of the road surface and install it to quickly lay the heating blanket 1. Since the heating blanket can be prepared in the factory in advance and the position of the heat pipe can be adjusted in advance according to the road requirements, there is no need for secondary adjustments by construction personnel during on-site laying. Construction personnel can directly place the heating blanket at the position corresponding to the vehicle wheel track on the unfinished concrete surface. The laying speed is fast, the installation is quick, and the snow melting and ice removal effect is good.

[0031] The aforementioned positioning and installation mechanism 15 can adopt existing clamping quick-installation mechanisms, such as stainless steel edge clamps combined with pre-embedded expansion bolts in the road surface 3. The clamps press and fix the corners of the heating blanket 1 to the road surface 3. The bolts only need to be shallowly pre-embedded, without the need for deep excavation of the roadbed. When disassembling, the bolts can be unscrewed, which is suitable for temporary or long-term winter installation. Alternatively, a Velcro composite fixing structure can be selected. The bottom layer 13 is bonded with high-strength industrial Velcro, and the road surface 3 is laid with a matching Velcro base. It is fixed by adhesive or shallowly embedded bolts. Once bonded, it can be fixed. When disassembling, it can be directly peeled off, causing minimal damage to the road surface 3, which is suitable for short-term emergency de-icing scenarios. This achieves rapid and accurate fixing of the heating blanket 1, preventing displacement due to vehicle running or water erosion, ensuring the accuracy of the de-icing area. All types of structures do not require complex fixing parts or deep roadbed modifications, and the construction is efficient and adaptable to winter needs.

[0032] As a preferred method, such as Figure 3As shown, the positioning and installation mechanism 15 includes positioning posts 151 arranged at the corners of the heating blanket 1. The positioning posts 151 are located at the bottom of the bottom layer 13, and the road surface 3 has positioning grooves adapted to the positioning posts 151. The positioning posts 151 are inserted into the positioning grooves. The corner positioning posts 151 can quickly and accurately fix the heating blanket 1, preventing displacement due to vehicle running or water erosion, and ensuring the accuracy of the ice melting area. The plug-in structure does not require complex fasteners or deep fixing by excavating the roadbed, making construction fast and efficient, and suitable for short-term winter laying and no roadbed modification. The plug-in structure facilitates winter installation and non-winter disassembly. For the heating blanket 1 laid on the road surface layer 32, shallow positioning grooves need to be opened in the road surface layer 32, without large-scale modification. After disassembly, the impact on the surface of the road surface layer 32 is small, and it can be reused in the following winter, saving manpower and resources. For the heating blanket 1 buried in the lower layer 33 of the road surface, a shallow positioning groove needs to be opened on the concrete surface layer formed by the first pour of the lower layer 33 of the road surface so that the construction personnel can quickly position and lay the heating blanket 1 for the second pour, so as to ensure the installation stability of the heating blanket 1 and avoid displacement during the second pour of concrete, which would affect the snow melting and ice removal effect of the road surface.

[0033] To further ensure that the heating blanket 1 laid on the surface of the road layer 32 will not shift due to vehicle traffic during use, and to ensure that the heating blanket 1 installed in the lower layer 33 of the road will not shift due to the secondary pouring of the concrete surface layer during use; such as Figure 3 As shown, the positioning and installation structure also includes auxiliary installation columns 152. These auxiliary installation columns 152 are located at the bottom of the bottom layer 13 and on both sides of the heating blanket 1. At least two auxiliary installation columns 152 are evenly distributed along the length of the heating blanket 1. Installation grooves adapted to the auxiliary installation columns 152 are formed on the road surface 3, and the auxiliary installation columns 152 are inserted into these grooves. Specifically, when the heating blanket 1 is laid on the surface of the road surface layer 32, the installation groove is formed on the road surface layer 33. When the heating blanket 1 is laid on the lower road surface layer 33 below the road surface layer 32, the installation groove is formed on the concrete surface layer formed by the first pouring of the lower road surface layer 33. Adding auxiliary installation columns 152 on both sides based on the corner positioning column 151 further disperses the force on the heating blanket 1, preventing edge lifting or displacement, and adapting to the winter usage needs of main roads with high traffic volume. Simultaneously, all installation columns are of a plug-in design, so when the heating blanket 1 is laid on the surface of the road surface layer 33, there is no need to modify the structure under the road surface 3, saving manpower and resources. Furthermore, the auxiliary installation columns 152 are evenly distributed along the length direction, so that the heating blanket 1 is subjected to balanced force, avoiding local stress concentration that could damage the installation structure, and eliminating the need to rely on underground structures.

Claims

1. A road surface de-icing and thermal melting blanket, characterized in that: The heating blanket (1) includes a heating device (2). The heating blanket (1) includes a surface layer (11), a heating layer (12), and a bottom layer (13) arranged from top to bottom. The surface layer (11) and the bottom layer (13) are made of ethylene polymer material that is resistant to pressure, shear and wear. The heating layer (12) includes heat pipes laid on top of the bottom layer (13). The heat pipes include an evaporation pipe (122), a heating circuit (121) and a return pipe (123) connected in sequence. The heating circuit (121) is arranged in a serpentine pattern on top of the bottom layer (13). The evaporation pipe (122) and the return pipe (123) are connected to the heating device (2). The heating blanket (1) is also provided with a positioning and installation mechanism (15) for installing the heating blanket (1) on the road surface (3).

2. The road surface de-icing and thermal melting blanket as described in claim 1, characterized in that: A mesh layer (14) is provided between the surface layer (11) and the heating layer (12), the mesh layer (14) including a mesh plate laid on top of the heating layer (12).

3. The road surface de-icing and thermal melting blanket as described in claim 1, characterized in that: The ethylene polymer material includes at least one of polytetrafluoroethylene and polyethylene.

4. The road surface de-icing and thermal melting blanket as described in claim 1, characterized in that: The heat pipe is made of copper or 304 stainless steel.

5. The road surface de-icing and thermal melting blanket as described in claim 4, characterized in that: The heat pipe has a diameter of 5-10 mm and a wall thickness of 1 mm.

6. The road surface de-icing and thermal melting blanket as described in claim 5, characterized in that: The heating blanket (1) is 10cm thick.

7. A road surface snow melting structure, characterized in that: The road surface (3) includes a road surface (3) and a road surface de-icing and heat-melting blanket as described in any one of claims 1-6. The road surface (3) includes a road surface layer (32) and a road surface sub-layer (33) from top to bottom. The heating device (2) is located on the outside of the road surface (3). The positioning and installation mechanism (15) is detachably connected to the road surface (3) to install the heating blanket (1). The heating blanket (1) is evenly laid on the surface of the road surface layer (32) along the wheel track (31) direction on the road surface (3) or the heating blanket (1) is evenly buried in the road surface sub-layer (33) at a distance of 3-10 cm from the bottom surface of the road surface layer (32) along the wheel track (31) direction on the road surface (3).

8. A road surface snow melting structure as described in claim 7, characterized in that: The positioning installation mechanism (15) includes a positioning post (151) placed at the corner of the heating blanket (1). The positioning post (151) is set at the bottom of the bottom layer (13). A positioning groove adapted to the positioning post (151) is opened on the road surface (3). The positioning post (151) is inserted into the positioning groove.

9. A road surface snow melting structure as described in claim 8, characterized in that: The positioning and installation structure also includes auxiliary installation columns (152), which are located at the bottom of the bottom layer (13) and on both sides of the heating blanket (1); at least two auxiliary installation columns (152) are evenly distributed along the length of the heating blanket (1), and the road surface (3) is provided with an installation groove that is compatible with the auxiliary installation columns (152), and the auxiliary installation columns (152) are inserted into the installation groove.

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