Snowmelt electric heating technology for tunnel coating
Published on:
2022-09-02 15:33
With the rapid development of highway construction in my country, the number of tunnels built in high latitudes, high mountain cold regions has increased rapidly. When the snow falls into the cold area, the snow on the road at the entrance to the tunnel freezes, and the friction coefficient of the road surface is greatly reduced. When the vehicle enters and leaves the tunnel, it is easy to slip and cause traffic accidents, which seriously affects the safety of drivers and passengers.
At present, the snow-melting and snow-snow methods used on the road surface mainly include the following types: Spray salt for snow-melting and anti-ice treatment is the most widely used method for removing snow, but chemical salts have a certain corrosive and damaging effect on the road. Surface structure, and also have a negative impact on the environmental environment. There is a great influence; the new environmentally friendly snow-melting agent is very expensive, the economic effect is weak, the scope of application is limited; snow removal methods such as labor and machinery have obvious traffic interference, and the snow removal effect is not complete. Therefore, taking into account the anti-slip problem of the tunnel entrance section in cold regions, Huaning's development of new anti-slip snow melting technology is of great engineering and practical significance to ensure the safe operation of the tunnel.
Electric heating uses heating wire as heat carrier. In electrification, the electric energy of the heating cable is converted into thermal energy, which is transferred to the heated body, supplemented by insulation from the outer layer of insulating material, in order to achieve the heating and heat preservation effect required by the system. Electric heating has high thermal efficiency, little effect on the structure, good effect, energy saving, simple structure, convenient installation, no pollution and long service life. It can realize the advantages of remote control and automatic control, and is widely used in construction, oil transportation, chemical industry, mechanical engineering and other parts.
Application of electric heating in road surface construction
When electric heating technology is applied to road surface construction, the entire system consists of a heating system and a control system. When a system is installed, it usually needs to be designed according to the composite road surface design and heating cable performance: engraving on the surface of the concrete pavement layer.
The groove is 2 cm (width) x 2 cm (depth) and then drop the heating cable into the groove (the heating cable should be over-long to avoid excessive force on the cable when the road surface is deformed). And fix it in the groove with wire braces and cement nails, and then lay the temperature control cable in the same way. After laying the cable, an asphalt concrete layer is laid. The heating cable and temperature control cable are removed from the edge of the road surface and enter the cable slot through the side ditch of the road surface to connect to the control circuit to control the heater's remote control system. Cable.
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Shandong Huaning Electric Heating Technology Co.,Ltd
Email: hnxs012@chinahuaning.com
Phone: +8618554011093
whatsapp: +8618554011093
Wechat:18554011093
Address: Xinxing Street, Industrial Park, Shanghe County, Jinan City, Shandong Province
