Electricity accompanies the heat airport snow melting use strategy

Airport runway and taxiway snow will seriously affect the normal take-off and landing of flights, electric heat tracing technology has become an effective means to solve the problem of melting snow in airports. But how to correctly use the electric heat tracing system, is a need to explore the problem, which is related to the airport operation safety and efficiency.

Pre-planning and selection

1. Area division: the airport has a vast area, and different areas have different needs and conditions for snow melting. First of all, the runway, taxiway, apron and other areas should be divided in detail. For example, the runway is the key area for airplane landing and taking off, which requires high speed and reliability of snow melting; the apron needs to consider the safety of airplane parking and the avoidance of equipment.

2. Selection basis: according to the needs of different areas, choose the appropriate electric heat tracing products. For the runway, need to choose high power, fast warming and can withstand heavy aircraft crushing electric accompanied by heat tape, such as constant power electric accompanied by heat tape, its power per meter can reach a high level, can quickly melt the snow. In the apron and other relatively low pressure area, self-limiting temperature electric accompanying heat may be more suitable, it can automatically adjust the power according to the temperature, energy saving and easy to install.

Installation points

1. Underground laying: In the area of runway and taxiway, electric heating tape usually adopts the way of underground laying. Construction should strictly control the laying depth, generally in 10 - 20 centimeters or so. At the same time, to ensure that the accompanying heat tape and the ground have good contact, to avoid the emergence of gaps affect the heat conduction.

2. Wiring layout: reasonable wiring according to the layout planning of the airport. On the runway, should be along the runway center line or aircraft tires driving track parallel wiring, to ensure that the snow can melt evenly. On the taxiway and apron, the steering and docking operations of the airplane should be considered to avoid the wiring affecting the normal activities of the airplane.

3. Protective measures: Due to the complex environment of airport, the electric heating tape needs good protection. The use of pressure-resistant, corrosion-resistant protective casing will be accompanied by tropical wrapped up to prevent damage in the aircraft crushing, snow removal equipment operations and chemical erosion and other circumstances.

Electrical system configuration

1. Power supply: airport electric trace heating system needs stable and reliable power supply. Calculate the total power demand, set up special substation or distribution cabinet to ensure sufficient power supply capacity. For example, the runway electric trace heating system of large international airport may need thousands of kilowatts of power supply.

2. Control system: Install intelligent control system to realize accurate control of electric trace heating. Real-time data are obtained through temperature sensors, weather stations and other equipment, and the power and running time of electric heat tracing are automatically adjusted according to the weather conditions and the thickness of snow. Reduce the power when the temperature is a little high or the snow is thin, save the energy; Increase the power in the snowy weather, accelerate the speed of melting snow.

Maintenance and inspection

1. Daily maintenance: Regularly check the electric heat tracing system to see whether the electric heat tracing tape is damaged, aging phenomenon, and whether the protective casing is intact. Tighten and insulate the electric connection parts to ensure that there is no risk of electric leakage. At the same time, clean up the sundries around the electric accompanying heat tape, ensure the heat dissipation is good.

2. Snow melting effect detection: in snow melting season, real-time monitoring snow melting effect. Can through the camera, thermal imager and other equipment to observe the snow melting situation, compare the snow melting speed of different areas, timely discovery of possible problems and make adjustments. For example, if it is found that a certain area melts snow slowly, it may be the electric accompanying tropical fault or insufficient power, which needs timely maintenance or adjustment of parameters.

The airport melts the snow to use the electric accompanies the heat to need to consider each link comprehensively, from the planning selection to the installation and maintenance. Only by following the correct use of the whole strategy, to ensure that the airport in the snow day can also maintain a good state of operation, to protect the safe takeoff and landing of flights.