Method and system for heating and melting snow and ice on road surface under current surface effect
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A technology of electric current collection and heating method, which is applied in the direction of roads, roads, pavement details, etc., can solve the problems of aircraft take-off and landing, difficulties, etc., and achieve the effect of small workload and convenient installation
Active Publication Date: 2010-06-02
WUXI HENGYE ELECTRICAL HEATER EQUIP
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Problems solved by technology
In particular, it can solve the long-term problems of roads and bridges caused by ice and snow freezing, the difficulty of going up and downhill, and the aircraft's inability to take off and land on the runway due to snow and ice.
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Embodiment
[0046] Embodiment: one northern winter often snows (31) in snowy areas and needs to build an airport, and its runway (30) is about 216000m by building its runway (30) in order not to affect flight aircraft take-off and whereabouts 2 , the design determines the length of the runway is 3600km×width 60m, and the "current skin effect heating method and system" is pre-designed, according to the requirements on the reinforced concrete (32) of the aircraft (25) model with an average load of 15T per square meter, and the runway (30) 2h melting ice and snow (31) time to thaw. According to thermal calculation and experiment, it is determined that the heating power per meter of the "U" shape current skin effect heating element (21) is 60w / m. The calorific value per square meter is 180W / M, which can meet the requirements of the airport runway (30) for melting ice and snow (31). Now it is divided into 80 small-area plots (11) to set up juice heating, and each small-area plot (11) is 2700m...
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Abstract
The invention relates to a method and a system for heating and melting snow and ice on the road surface under the current surface effect. The system comprises an alternating-current power supply, an input cable, a three-phase transformer, a three-phase balancer, an electrical switch, a temperature control device, a snow and ice melting sensor, a power supply terminal box, highly-ferromagnetic iron pipes, a transitional connecting tube, a high temperature wire, an electrical switch (3), a U-shaped bent-pipe wire penetrating part, an end terminal box, a grounding protector and a cathode protector. A U-shaped surface action heating element which is formed by connecting a plurality U-shaped highly-ferromagnetic iron pipes is energized under the surface effect and the proximity effect to efficiently emit heat to rapidly melt the snow and the ice on the road surface. The U-shaped highly-ferromagnetic iron pipes are buried in the teinforced concrete or asphalt road surface. The U-shaped surface action heating element has high mechanical strength and quite long service life, can be used permanently, is not easy to be subjected to the wire disconnection, is very easy to repair when being damaged, needs only one power supply point, can not affect the three-phase power supply balance, can be heated uniformly, adjusted randomly in temperature and constructed and installed conveniently with least labor, has high degree of automation, does not need electric insulation, is safe, reliable and economical and can not pollute the environment.
Description
technical field [0001] The invention relates to the technical field of current skin effect heating and thawing to melt road ice and snow. Background technique [0002] It is well known that when the water vapor in the air reaches a certain degree of saturation and cools below the Celsius degree, it condenses into ice crystals and falls from the air to form ice and snow, which is the most common phenomenon of natural precipitation. When it snows, the frozen snow on the road hinders people's activities and traffic, especially in the northern winter season or in snowy areas, which causes inconvenience to people and even disasters. Runway, sidewalk, pedestrian bridge, and other public places, in order to thaw or remove ice and snow and make it melt into water as soon as possible to make traffic flow, people are the most primitive with manual snow removal, and after progress, use various machinery to remove ice and snow (such as patent cn200320126117.1 urban highway ice and snow ...
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