Array type eddy current snow melting system for airport runway

Abstract

The invention relates to the technical field of airfield runway snow melting, in particular to an array type eddy current snow melting system for an airfield runway, which comprises a plurality of alternating magnetic field generating devices, the alternating magnetic field generating devices are embedded in preformed holes of the airfield runway in an array arrangement mode, and a heating material is doped in the airfield runway. The heating material comprises a metal conductor and carbon fibers, the alternating magnetic field generating device is used for generating an alternating magnetic field, and the heating material and a steel reinforcement framework in the airport runway can generate an eddy current effect under the action of the alternating magnetic field to generate heat, so that ice and snow on the airport runway are melted. The airport runway is heated through the eddy current effect, so that ice and snow on the airport runway are melted, and then the effect of quickly melting snow can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of airport runway snow melting, and particularly to an array-type eddy current snow melting system for airport runways. Background Art

[0002] In the current field of airport runway snow and ice removal operations, the mainstream technical means mainly include mechanical snow removal, chemical snow removal, and hot air snow removal. However, these traditional methods have exposed many drawbacks in practical applications: on the one hand, their energy consumption and costs are extremely high, imposing a heavy economic burden on airport operations; on the other hand, the agents used in the chemical snow removal process are prone to causing chemical pollution, and the large amount of waste gas generated by the fuel combustion of snow removal equipment will cause air pollution, having an adverse impact on the ecological environment around the airport. More critically, in the face of continuous snowfall weather, the above snow and ice removal methods need to be operated frequently, but the snow removal effect is difficult to be satisfactory. The prominent problem with traditional snow and ice removal methods is that they cannot achieve the effect of rapid snow melting, thereby leading to frequent flight delays and seriously affecting the normal operation order and air transportation efficiency of the airport. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiency in the prior art that the snow and ice removal methods for airport runways cannot achieve the effect of rapid snow melting, and to provide an array-type eddy current snow melting system for airport runways.

[0004] The present invention provides an array-type eddy current snow melting system for airport runways, including a plurality of alternating magnetic field generating devices. The plurality of alternating magnetic field generating devices are embedded in reserved holes of the airport runway in an array arrangement. A heating material is incorporated in the airport runway, and the heating material includes a metal conductor and carbon fiber. The alternating magnetic field generating device is used to generate an alternating magnetic field, and the heating material and the steel bar skeleton in the airport runway can generate an eddy current effect and heat under the action of the alternating magnetic field, thereby melting the ice and snow on the airport runway.

[0005] The present invention provides an array - type eddy - current snow - melting system for airport runways. The alternating - magnetic - field generating devices are arranged in an array - type layout on the airport runway, so that the alternating magnetic field generated by the alternating - magnetic - field generating devices can cover the entire airport runway. The alternating - magnetic - field generating devices are embedded in the reserved holes of the airport runway, thus having no impact on the take - off and landing of aircraft. The alternating - magnetic - field generating devices are used to generate an alternating magnetic field, and the alternating magnetic field acts on the heating material or the steel - bar framework in the airport runway. The heating material and the steel - bar framework can generate heat through the eddy - current effect under the action of the alternating magnetic field, thereby heating the airport runway and melting the ice and snow on the airport runway. The invention can heat the airport runway before snowfall, so that the snowflakes will be heated and melted immediately when they fall on the airport runway, thus achieving the effect of rapid snow melting.

[0006] The heating material refers to a material that can generate heat through the eddy - current effect under the action of an alternating magnetic field.

[0007] The scheme of incorporating the metal conductor and the carbon fiber into the airport runway has the following characteristics: This scheme generates strong eddy currents by means of the metal conductor, thus achieving high - efficiency heating. At the same time, the carbon fiber can optimize the resistance matching and improve the thermal stability, enabling the heat to act more concentratedly inside the airport runway and effectively reducing heat dissipation. The carbon fiber also has excellent corrosion resistance and fatigue resistance, which can significantly enhance the durability of the airport runway and thus extend the service life of the airport runway. In addition, the high tensile strength and low density characteristics of the carbon fiber contribute to improving the load - bearing capacity of the airport runway. The metal conductor and the carbon fiber work together to optimize the heating efficiency, enhance the durability of the airport runway, strengthen its structural strength, and reduce the long - term maintenance cost, comprehensively improving the functions and performance of the airport runway.

[0008] Preferably, a phase - change material is also incorporated into the airport runway. The phase - change material can absorb the thermal energy of the eddy - current effect to generate a phase - change energy - storage effect and can continuously release thermal energy when the alternating - magnetic - field generating device is turned off, forming a dual - effect complementary snow - and - ice - melting mechanism of the eddy - current effect + phase - change energy - storage effect.

[0009] In this scheme, the phase - change material can absorb the heat of the airport runway to generate a phase - change energy - storage effect and store a part of the heat in the phase - change material. When the alternating - magnetic - field generating device is turned off, the phase - change material can continue to release the stored heat to the airport runway, thereby continuing to melt the ice and snow on the airport runway, achieving the purpose of energy conservation.

[0010] The phase change material refers to a class of functional materials that can undergo a reversible phase change process (such as solid-liquid, solid-solid, liquid-gas, or solid-gas phase change) within a specific temperature range, absorb or release a large amount of latent heat during the phase change process, and maintain its own temperature approximately constant.

[0011] Preferably, the alternating magnetic field generating device includes a plurality of coils. Among the plurality of coils of the same alternating magnetic field generating device, or among the coils of adjacent alternating magnetic field generating devices, constructive or destructive interference of the magnetic field can occur under the control of the inverter current phase and the power frequency control, so as to achieve a low attenuation rate and high uniformity of the alternating magnetic field at the target distance position within the radiation range.

[0012] With a specific combination of spatial layout and angles of the plurality of coils, under the action of the technical means of inverter current phase control, the alternating magnetic field achieves a low attenuation rate and high uniformity on the airport runway, effectively alleviating the phenomenon that the alternating magnetic field gradually attenuates in the spatial radiation direction in the prior art solution. This improvement enhances the uniformity of the intensity of the alternating magnetic field on the airport runway, and further enhances the uniformity of the heat generation caused by the eddy current effect in the airport runway, and finally achieves a better snow melting effect.

[0013] Preferably, the types of the coils include U-shaped coils, solenoid coils, or Helmholtz coils, and the coils are provided with magnetic cores; the combination forms of the plurality of coils include array type or three-dimensional type; the plurality of coils are all provided with rotating mechanisms, and the rotating mechanism includes a micro motor and a magnetic drive device. The rotating mechanism is used to adjust and precisely control the spatial layout and combination angle of the coils to ensure the effect of magnetic field phase control. In this solution, the magnetic core is used to enhance or balance the magnetic field distribution. The rotating mechanism makes the phase control effect accurate, and at the same time, by rotating the coil group, the alternating magnetic field can be more evenly radiated to the surrounding airport runway.

[0014] The rotating mechanism has three degrees of freedom of rotation and can adjust the coils to a predetermined angle according to actual needs.

[0015] Preferably, every 2 to 3 rows of the alternating magnetic field generating devices along the length direction of the airport runway form a centralized inversion section, and each centralized inversion section is provided with a centralized inversion controller. The centralized inversion controller includes a control chip and a power drive module, and has the functions of inverter current phase control and frequency control. The centralized inversion controller is used to output the inverter current to the coils of the alternating magnetic field generating device.

[0016] Preferably, the centralized inverter controller further includes a first communication module, the alternating magnetic field generating device further includes a second communication module and a feedback adjustment module. The first communication module is connected to the second communication module through a wired communication line. The feedback adjustment module includes a current sensor and a Hall sensor. The feedback adjustment module is configured to collect information on the intensity of the inverter current and the magnetic field strength, and feedback it to the control chip through the first communication module and the second communication module, providing a basis for the control of the magnetic field phase and the adjustment of power and frequency. This solution can establish a control connection between the centralized inverter controller and the alternating magnetic field generating device, enabling the unified control of the alternating magnetic field generating devices in the same centralized inverter section.

[0017] Preferably, it further includes an intelligent control system. The intelligent control system can collect and analyze the surface temperature and the real-time snowfall amount in each centralized inverter section within the airport runway to obtain an analysis result. The intelligent control system can, according to the analysis result, intelligently control the power and power distribution of each centralized inverter section. The intelligent control system can, according to the real-time takeoff and landing positions of the aircraft provided by the airport 4D flight time control system, automatically control the turning on or off of the alternating magnetic field generating devices in each centralized inverter section. When the aircraft is within the front and rear safety distances of the centralized inverter section, the intelligent control system can control the corresponding alternating magnetic field generating device in the centralized inverter section to turn off. After the aircraft has exited the safety distance, the intelligent control system can control the corresponding alternating magnetic field generating device to turn on. The intelligent control system can intelligently control the alternating magnetic field generating devices in each centralized inverter section, enabling the alternating magnetic field generating devices to turn on or off at an appropriate time and reach a predetermined operating power. While achieving snow melting on the airport runway, it avoids affecting the takeoff and landing of the aircraft.

[0018] Preferably, the alternating magnetic field generating device further includes a glass cover, a lighting component, a circuit board, a housing, as well as a power supply and a communication interface. The shape of the housing matches the shape of the reserved hole. The glass cover, the lighting component, the coil, and the circuit board are arranged in sequence from top to bottom along the height direction of the alternating magnetic field generating device. The power supply and the communication interface are provided on the circuit board. The top surface of the glass cover is flush with the surface of the airport runway.

[0019] The glass cover is used to protect the lighting component and allows the light emitted by the lighting component to pass through. The lighting component serves to provide visual guidance for the aircraft, and the color, luminous intensity, irradiation angle, etc. of the lighting component should meet the requirements of the relevant airport specifications for the indicators of the navigational aids lighting fixtures. The housing is used to enclose the entire alternating magnetic field generating device, serving the functions of protection and anti-compression. The circuit board is used to control the coil and supply power to the coil. The power supply and communication interface are used to connect to an external power supply and an external communication port. The top surface of the glass cover is flush with the surface of the airport runway to avoid affecting the flatness of the airport runway.

[0020] Preferably, a pedestal is provided at the bottom of the reserved hole, the alternating magnetic field generating device is installed on the pedestal, a power supply and communication socket is provided on the pedestal, the power supply and communication interface is connected to the power supply and communication socket through a power line and a data line, a wire threading pipe is provided at the bottom of the pedestal, and a sealing ring is provided between the housing and the hole wall of the reserved hole. The power supply and communication socket is used to provide power and communication connection for the alternating magnetic field generating device. The sealing ring is used to prevent rainwater from entering the reserved hole. The wire threading pipe is used to place power transmission lines and communication lines.

[0021] Preferably, the material of the glass cover is glass with high transparency and high strength, and the lighting component includes a number of LED lamp beads.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides an array-type eddy current snow melting system for an airport runway. Through the alternating magnetic field generated by the alternating magnetic field generating device acting on the metal conductor, the carbon fiber or the steel bar framework in the airport runway to generate an eddy current effect for heating, thereby heating the airport runway and melting the ice and snow on the airport runway, and thus can achieve a rapid snow melting effect.

[0023] The present invention provides an array-type eddy current snow melting system for an airport runway. By installing the alternating magnetic field generating device in an array layout on the airport runway, and adding a metal conductor and carbon fiber as heating materials in the airport runway, the metal conductor, the carbon fiber and the steel bar framework generate heat through the eddy current effect under the action of the alternating magnetic field, melting the ice and snow on the surface of the airport runway, and through the multi-coil combination and magnetic field phase control technology, enhancing the uniformity of the intensity of the alternating magnetic field on the airport runway, and being able to achieve pollution-free and efficient snow melting of the airport runway.

[0024] The present invention provides an array - type eddy current snow - melting system for airport runways. By simultaneously incorporating the phase - change material into the airport runway, applying the alternating - magnetic - field eddy - current effect and the phase - change energy - storage effect, and making them form a complementary mechanism. The eddy - current effect can heat the metal conductor, the carbon fiber, and the steel - bar framework while providing a heat source for the phase - change material, overcoming the drawback that the phase - change material fails because the environmental temperature is lower than its phase - change temperature for a long time in alpine and high - altitude regions and cannot absorb heat. The phase - change material can continuously release heat when the magnetic field is turned off, saving electric energy for the use of the eddy - current effect. Through the effective allocation of the automated intelligent control system, the operation cost can be minimized to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic plan view of the alternating - magnetic - field generating device of the present invention.

[0026] Figure 2 It is a schematic structural view of the alternating - magnetic - field generating device of the present invention.

[0027] Markings in the figure: 1 - Airport runway, 2 - Alternating - magnetic - field generating device, 201 - Glass cover, 202 - Lighting component, 203 - Coil, 204 - Circuit board, 205 - Outer shell, 206 - Power supply and communication interface, 3 - Magnetic field lines, 4 - Runway center line, 5 - Reserved hole, 6 - Base, 601 - Power - supply and communication socket, 7 - Conduit, 8 - Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following further describes the present invention in detail with specific embodiments. However, this should not be understood that the scope of the above - mentioned subject matter of the present invention is limited to the following embodiments. All technologies implemented based on the content of the present invention belong to the scope of the present invention.

[0029] Unless otherwise specified, in the description of specific embodiments of the present invention, the expression terms indicating the orientation or positional relationship, such as "upper", "lower", "left", "right", "center", "inner", "outer", etc., are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / device / device is normally used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present invention.

[0030] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", "coaxial" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel or coaxial, but can be slightly inclined or have a deviation as long as the normal functions of the relevant components are not affected. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined; "coaxial" means that two components are arranged as coaxial as possible, and move in a coaxial or approximately coaxial manner when the relative position changes. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", "coaxial", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1 mm, preferably within 0.2-0.5 mm. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present invention.

[0031] In addition, the expressions "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0032] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., or even more than 9.

[0033] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, when the terms "arranged", "installed", "connected", "linked", "provided with", "laid", "disposed" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0034] Embodiment 1 As Figures 1 to 2 shown, an array-type eddy current snow melting system for an airport runway includes a plurality of alternating magnetic field generating devices 2.

[0035] A plurality of alternating magnetic field generating devices 2 are embedded in reserved holes 5 of the airport runway 1 in an array arrangement. A heating material is incorporated in the airport runway 1. The heating material includes a metal conductor and carbon fiber. The alternating magnetic field generating device 2 is used to generate an alternating magnetic field. The heating material and the steel bar framework in the airport runway 1 can generate an eddy current effect under the action of the alternating magnetic field and heat up, thereby melting the ice and snow on the airport runway 1.

[0036] Specifically, the distance between two adjacent alternating magnetic field generating devices 2 along the length direction of the airport runway 1 can be 5m - 10m, and the specific distance can be 5m, 6m, 8m, 10m. The distance between two adjacent alternating magnetic field generating devices 2 along the width direction of the airport runway 1 can be 5m - 10m, and the specific distance can be 5m, 6m, 8m, 10m. Figure 1 The arrow direction in Figure 1 shows the length direction of the airport runway 1, and

[0037] The cross-section of the reserved hole 5 can be a rectangle with a side length of 20cm - 30cm or a circle with a diameter of 20cm - 30cm. The depth of the reserved hole 5 can be 20cm - 40cm.

[0038] The metal conductor can be steel slag, iron balls or iron blocks, steel fibers, and other metal materials with different shapes and properties, and the plating method can be adopted to increase the heating efficiency of the metal conductor.

[0039] In an alternative embodiment, a phase change material may also be incorporated into the airport runway 1. The phase change material can absorb the thermal energy of the eddy current effect to generate a phase change energy storage effect, and can continuously release thermal energy when the alternating magnetic field generating device 2 is turned off, forming a dual-effect complementary snow melting and ice melting mechanism of the eddy current effect + phase change energy storage effect. The thermal energy released by the phase change material is used to continuously maintain the temperature of the airport runway 1 to achieve the purpose of continuous snow melting. The phase change material may specifically be paraffin or eutectic salt.

[0040] In an alternative embodiment, the alternating magnetic field generating device 2 may include a plurality of coils 203. Between the plurality of coils 203 of the same alternating magnetic field generating device 2 or between the coils 203 of adjacent alternating magnetic field generating devices 2, constructive or destructive interference of the magnetic field can occur under the control of the inverter current phase and the power frequency control, so as to achieve a low attenuation rate and a high uniformity of the alternating magnetic field at the target distance position within the radiation range.

[0041] A combination of a specific spatial layout and angle of the plurality of coils 203 ensures that constructive or destructive interference of the magnetic field of different degrees can occur under the control of the inverter current phase and the power frequency control.

[0042] The low attenuation rate means that along the direction away from the coil 203, the intensity of the alternating magnetic field attenuates by no more than 5% per meter.

[0043] The high uniformity means that the difference in the magnetic field intensity at each point within the region of the alternating magnetic field is within ±10%.

[0044] In an alternative embodiment, the type of the coil 203 may include a U-shaped coil, a solenoid coil or a Helmholtz coil, and the coil 203 is provided with a magnetic core; the combination form of the plurality of coils 203 includes an array type or a three-dimensional type; the plurality of coils 203 are all provided with a rotating mechanism, and the rotating mechanism includes a micro motor and a magnetic drive device, and the rotating mechanism is used to adjust and precisely control the spatial layout and the combination angle of the coil 203 to ensure the effect of the magnetic field phase control. Different forms of magnetic cores are selected according to different forms of the coil 203, and the magnetic core materials include ferrite, silicon steel sheet, etc.

[0045] In an alternative embodiment, every 2 to 3 rows of alternating magnetic field generating devices 2 along the length direction of the airport runway 1 may form a centralized inversion section, and each centralized inversion section is provided with a centralized inversion controller. The centralized inversion controller includes a control chip and a power drive module, and has the functions of inverter current phase control and frequency control. The centralized inversion controller is used to output the inverter current to the coils 203 of the alternating magnetic field generating device 2.

[0046] In an alternative embodiment, the centralized inverter controller may further include a first communication module. The alternating magnetic field generating device 2 further includes a second communication module and a feedback adjustment module. The first communication module is connected to the second communication module through a wired communication line. The feedback adjustment module includes a current sensor and a Hall sensor. The feedback adjustment module is configured to collect information on the intensity of the inverter current and the magnetic field strength, and feedback it to the control chip through the first communication module and the second communication module, providing a basis for magnetic field phase control and power and frequency adjustment.

[0047] The second communication module includes a conditioning circuit, a data buffer and storage unit. The second communication module is connected to the intelligent control system through a power supply and a communication interface 206 and a communication line.

[0048] The centralized inverter controller is used for centralized energy storage, power supply, communication, centralized inversion and phase control. The centralized inverter controller includes a storage battery, a centralized inversion module and the first communication module. The centralized inverter controller has the functions of inverter current phase control and frequency control, and outputs the inverter current to the coil 203 of the alternating magnetic field generating device 2.

[0049] The storage battery is used for storing electric energy, regulating the power supply and demand of electricity, and optimizing the electricity cost of peak and valley periods. The storage battery includes a large-capacity battery and an automatic control system, etc.

[0050] The centralized inversion module is used for generating and controlling the inverter current. The centralized inversion module includes a control chip, a power drive module, a protection circuit, and a feedback and adjustment module. The control chip can adopt a PLC or a DSP, and is responsible for generating PWM or SPWM signals, controlling the frequency and current phase with a PID algorithm, and connecting to the power drive module and the feedback and adjustment module. The power drive module includes a power conversion circuit and a driving chip group, and is responsible for generating alternating current and outputting it to each alternating magnetic field generating device 2. The power drive module can adopt IGBT or GaN devices. The protection circuit is used for monitoring voltage and current, and performing overvoltage / overcurrent or short-circuit protection. The feedback and adjustment module includes a current sensor and a Hall sensor, providing a basis for real-time control and adjustment for the control chip.

[0051] The first communication module is used for transmitting instructions and feedback information, connecting the intelligent control system and the alternating magnetic field generating device 2, and adopting a wired communication method. The first communication module includes a fiber optic interface, a data storage element, a data processing unit, etc.

[0052] In an alternative embodiment, a smart control system may also be included; the smart control system can collect and analyze the surface temperature and real-time snowfall amount of each of the centralized inverter sections in the airport runway 1 to obtain an analysis result; the smart control system can intelligently control the power and power distribution of each of the centralized inverter sections according to the analysis result; the smart control system can automatically control the opening or closing of the alternating magnetic field generating device 2 of each of the centralized inverter sections according to the real-time takeoff and landing position of the aircraft provided by the airport 4D flight time control system. When the aircraft is within the front and rear safety distances of the centralized inverter section, the smart control system can control the alternating magnetic field generating device 2 of the corresponding centralized inverter section to close. After the aircraft exits the safety distance, the smart control system can control the corresponding alternating magnetic field generating device 2 to open.

[0053] The smart control system includes a data analysis and transmission unit, a background master control terminal, and a human-machine interaction unit.

[0054] In an alternative embodiment, the alternating magnetic field generating device 2 may further include a glass cover 201, a lighting element 202, a circuit board 204, a housing 205, and a power and communication interface 206; the shape of the housing 205 matches the shape of the reserved hole 5. The glass cover 201, the lighting element 202, the coil 203, and the circuit board 204 are arranged in sequence from top to bottom along the height direction of the alternating magnetic field generating device 2. The power and communication interface 206 is provided on the circuit board 204, and the top surface of the glass cover 201 is flush with the surface of the airport runway 1.

[0055] The housing 205 is firmly and tightly connected to the glass cover 201. The housing 205 can withstand the load transmitted from the glass cover 201. The housing 205 is made of a material that does not shield the magnetic field, including engineering plastics, ceramic composite materials, basalt fiber composite materials, etc.

[0056] The circuit board 204 can be a single-layer or multi-layer PCB structure. The circuit board 204 is also provided with a protection circuit and a feedback and regulation module. The protection circuit is used to monitor the voltage and current for overvoltage / overcurrent or short-circuit protection. The feedback and regulation module includes a current sensor and a Hall sensor, providing a basis for real-time control and adjustment for the smart control system.

[0057] The lighting element 202 can be controlled by the smart control system through the second communication module.

[0058] In an alternative embodiment, a base 6 may be provided at the bottom of the reserved hole 5. The alternating magnetic field generating device 2 is installed on the base 6. A power supply and communication socket 601 is provided on the base 6. The power supply and communication interface 206 is connected to the power supply and communication socket 601 through a power cord and a data cable. A wire conduit 7 is provided at the bottom of the base 6. A sealing ring 8 is provided between the outer shell 205 and the hole wall of the reserved hole 5.

[0059] Specifically, the shape of the base 6 is consistent with the cross-sectional shape of the reserved hole 5, and the thickness of the base 6 is 1 cm - 2 cm. The alternating magnetic field generating device 2 can be separated from the base 6, facilitating operations such as replacement, repair, and upgrade after removing the alternating magnetic field generating device 2. The specific material of the sealing ring 8 can be rubber or silica gel.

[0060] The power supply and communication interface 206 is fitted and connected to the power supply and communication socket 601 on the base 6.

[0061] In an alternative embodiment, the material of the glass cover 201 can be glass with high transparency and high strength. The lighting component 202 includes a number of LED lamp beads. The glass cover 201 can withstand the impact and pressure of the aircraft tire. The light transmittance of the glass cover 201 is ≥85%, the surface compressive stress is ≥90 MPa, and the bending strength is ≥400 MPa. The glass cover 201 can specifically be selected as chemically tempered lithium aluminosilicate glass and adopt a three-layer composite structure.

[0062] In an alternative embodiment, a magnetic field reflection layer may be provided below the airport runway 1. The magnetic field reflection layer can reflect the alternating magnetic field back into the airport runway 1 again, increasing the eddy current effect. The magnetic field reflection layer is added with high magnetic permeability powders such as ferrite powder and reduced iron powder.

[0063] In an alternative embodiment, the alternating magnetic field generating device 2 may further include a monitoring sensor. The monitoring sensor is used to monitor the surface temperature index of the airport runway 1 and feed back the monitoring result to the intelligent control system, providing a basis for intelligent automatic control. The monitoring sensor can specifically be an infrared thermometer.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An array-type eddy current snow melting system for airport runways, characterized in that, Comprising: A plurality of alternating magnetic field generating devices (2), and a plurality of the alternating magnetic field generating devices (2) are embedded in reserved holes (5) of an airport runway (1) in an array arrangement. A heating material is incorporated in the airport runway (1), and the heating material includes a metal conductor and carbon fiber. The alternating magnetic field generating device (2) is used to generate an alternating magnetic field, and the heating material and the steel bar framework in the airport runway (1) can generate an eddy current effect and heat under the action of the alternating magnetic field, thereby melting the ice and snow on the airport runway (1).

2. The array eddy current snow melting system for airport runway according to claim 1, wherein: A phase change material is further incorporated in the airport runway (1). The phase change material can absorb the thermal energy of the eddy current effect to generate a phase change energy storage effect, and can continuously release thermal energy when the alternating magnetic field generating device (2) is turned off, forming a dual-effect complementary ice and snow melting mechanism of an eddy current effect + phase change energy storage effect.

3. The array eddy current snow melting system for airport runway according to claim 2, wherein: The alternating magnetic field generating device (2) includes a plurality of coils (203). Between a plurality of the coils (203) of the same alternating magnetic field generating device (2), or between the coils (203) of adjacent alternating magnetic field generating devices (2), constructive or destructive interference of the magnetic field can occur under the control of the inverter current phase and the power frequency, so as to achieve a low attenuation rate and a high uniformity of the alternating magnetic field at the target distance position within the radiation range.

4. The array-type eddy current snow melting system for airport runway according to claim 3, characterized in that: The types of the coils (203) include U-shaped coils, solenoid coils or Helmholtz coils, and the coils (203) are provided with magnetic cores; the combined forms of a plurality of the coils (203) include an array type or a three-dimensional type; a plurality of the coils (203) are all provided with rotating mechanisms, and the rotating mechanisms include micro motors and magnetic drive devices. The rotating mechanisms are used to adjust and precisely control the spatial layout and combination angle of the coils (203) to ensure the effect of magnetic field phase control.

5. The array eddy current snow melting system for airport runway according to claim 4, characterized in that: Every 2 to 3 rows of the alternating magnetic field generating devices (2) along the length direction of the airport runway (1) form a centralized inversion section, and a centralized inversion controller is arranged in each centralized inversion section. The centralized inversion controller includes a control chip and a power drive module, and has the functions of inverter current phase control and frequency control. The centralized inversion controller is used to output the inverter current to the coils (203) of the alternating magnetic field generating device (2).

6. The array type eddy current snow melting system for airport runway according to claim 5, characterized in that: The centralized inversion controller further includes a first communication module, and the alternating magnetic field generating device (2) further includes a second communication module and a feedback adjustment module. The first communication module and the second communication module are connected through a wired communication line. The feedback adjustment module includes a current sensor and a Hall sensor. The feedback adjustment module is used to collect information on the inverter current intensity and the magnetic field intensity, and feedback it to the control chip through the first communication module and the second communication module, providing a basis for the adjustment of the magnetic field phase control and the power and frequency.

7. An array eddy current snow melting system for airport runway according to claim 5, characterized in that: It further includes an intelligent control system; the intelligent control system can collect and analyze the surface temperature and real-time snowfall amount of each of the centralized inverter sections in the airport runway (1) to obtain an analysis result; the intelligent control system can intelligently control the power and power distribution of each of the centralized inverter sections according to the analysis result; the intelligent control system can automatically control the opening or closing of the alternating magnetic field generating device (2) of each of the centralized inverter sections according to the real-time takeoff and landing positions of the aircraft provided by the airport 4D flight time control system. When the aircraft is within the front and rear safety distances of the centralized inverter section, the intelligent control system can control the corresponding alternating magnetic field generating device (2) of the centralized inverter section to close. After the aircraft exits the safety distance, the intelligent control system can control the corresponding alternating magnetic field generating device (2) to open.

8. An array eddy current snow melting system for an airport runway according to any one of claims 3-7, characterized in that: The alternating magnetic field generating device (2) further includes a glass cover (201), a lighting component (202), a circuit board (204), a housing (205), and a power and communication interface (206); the shape of the housing (205) matches the shape of the reserved hole (5). The glass cover (201), the lighting component (202), the coil (203), and the circuit board (204) are arranged in sequence from top to bottom along the height direction of the alternating magnetic field generating device (2). The power and communication interface (206) is arranged on the circuit board (204), and the top surface of the glass cover (201) is flush with the surface of the airport runway (1).

9. The array eddy current snow melting system for airport runway according to claim 8, characterized in that: A base (6) is provided at the bottom of the reserved hole (5). The alternating magnetic field generating device (2) is installed on the base (6). A power supply and communication socket (601) is provided on the base (6). The power and communication interface (206) is connected to the power supply and communication socket (601) through a power cord and a data cable. A wire threading pipe (7) is provided at the bottom of the base (6). A sealing ring (8) is provided between the housing (205) and the hole wall of the reserved hole (5).

10. An array-type eddy current snow melting system for an airport runway according to claim 8, characterized in that: The material of the glass cover (201) is glass with high transparency and high strength. The lighting component (202) includes a number of LED lamp beads.

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