Shandong Huaning Electric Heating Technology Co., Ltd.
Snowmelt electric heating technology for tunnel coating
In an effort to solve the problem of anti-slip tunnel entrance in cold regions, Huanning has developed a new anti-slip snow melting technology that is of great engineering and practical importance to ensure the safe operation of the tunnel.
Sep 02,2022
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.
Related Posts
Electrical heating installation precautions
Electric heating cable is a heating method that uses insulation resistance or resistance heating wire to create a temperature after power supply. It can automatically adjust the output temperature and reasonably maintain the process temperature requirements to keep warm, raise the temperature and protect the heating equipment from freezing. The insulation and antifreeze effect of the container is very good.
Which electric heating should be chosen for the main pipeline transport of heavy oil
Transport of heavy oil through the pipeline over long distances and long-term retention in the pipeline will result in a drop in temperature due to heat dissipation and increased viscosity, which will cause the pipeline to be blocked by freezing or condensation-related accidents. Electric heating is widely used as effective insulation of pipelines and anti-freeze protection.
Which electric heating cable should be considered for a 4 km pipeline
According to the statistics of the Hydrometeorological Center, the average daily minimum temperature at the location of the CNPC tank farm is 5 ° C, and the average daily maximum temperature is 14 ° C. Since the freezing point of the PX is about 15 °C, the supply pipeline needs heat preservation and heating. The oil depot has been in operation for many years without a stable source of steam, therefore, this project is considering the use of electric heating technology.
Application of outdoor electric heating cable in oil main pipelines with high paraffin content
Long-distance crude oil pipelines with a high paraffin content with freezing temperatures above 50 °C. According to the requirements of the production plan of the plant, the volume of oil transportation through the pipeline is 150 thousand rubles. Tons per year, maximum-200 thousand. Tons per year.. According to the thermodynamic analysis of the pipeline, the initial supply temperature of the pipeline is 80 ° C (TN), and the temperature of the end entering the tank is 60 ° C (Tu). Since the transportation temperature needs to be adjusted according to the time of year, it sometimes needs to be transported by heat.
What heating product to choose for main infusion pipelines
In petrochemical engineering, trunk infusion pipelines are the lifeblood of the factories. The temperature in the northern region is too low in winter and the pipeline needs to be insulated to compensate for the heat loss due to the low temperature in winter to ensure the normal operation of the pipeline.
The role of leather tracer cables in the insulation of asphalt main pipelines
The toughness of the asphalt is greatly affected by the temperature. When the temperature decreases, the toughness of the asphalt increases, and the drop in resistance of the asphalt during pipeline transportation increases; when the temperature falls below the freezing point, the asphalt solidifies, causing the pipeline to clog and the conveyor belt to come to trouble. Therefore, electric heating and heat preservation during the transportation of asphalt are very important.
Need help to find the right solution with our experts?
WhatApp:
E-mail:
Address:
Xinxing Street, Industrial Park, Shanghe County, Jinan City, Shandong Province
✪ Huaning Electric Heat Tracing provides you with professional solutions
