MI heating cables are used for electric heating switches for melting snow and ice.

Shooter is an important part of the transport equipment of the railway station. This is a rolling stock control device for crossing from one track to another track or crossing another track. It is directly related to traffic safety, so the technical status of Zen Road is very strict. Clause 3 of Article 80 of the “Technical Regulation” stipulates that at the first connecting rod (the transfer external locking switch is a locking rod), if there is a horizontal gap of 4mm or more between the end rail and the main rail, between the rail core and the wing wing, the signal machine cannot be blocked or opened.

When it rains heavily and snows in winter, the switches are often covered with ice due to the accumulation of snow, resulting in inflexible operation of the turnouts, the index and main rails are not brought together, and the signal machine cannot be locked or open, Which directly affects the reception and departure of trains or shunting work at the station and even leads to serious blocking of railway junctions, as a result of which goods and passengers get stuck. When it snows and freezes in winter, the rail authority will prevent large numbers of people from removing snow and ice from the turnouts, creating hidden dangers to traffic safety. Taking into account the current situation, it is necessary to develop an electric-heated snow melting and ice protection device for railway turnouts to change the current situation of manual snow removal and anti-icing protection of turnouts.

Working principle

The snow melting and de-icing system of switch electric heating is used in different regions, and its heating power and control requirements will be different, but its basic working principle is the same.

When the power is turned on, the switch heating control cabinet collects the temperature signal of the main rail at the object, when the main rail temperature is above 0 °C or the lower limit of the set temperature value, the system does not heat the operation; when the actual temperature of the switch rail is lower than the set. When the lower limit of the temperature value is set, the system automatically starts the heating element on the arrow rail, and the switch rail is heated to achieve the purpose of melting ice and snow, when the switch rail temperature rises to the upper limit of the set value, the system will automatically cut off the power supply and stop heating to achieve the best energy saving effect.

Electroheating snow melting and ice removal method has the following characteristics and advantages:

Modern advanced electric heating cable production technology is applied, and the outer layer is made of high-strength stainless steel shell, which has extremely high mechanical strength and flexibility.

2. The electric heating element does not require special adjustment and can be formed according to the needs of the object, which is suitable for heating needs, which does not allow for structural changes;
   When installed, the high-strength electric heating element is attached to fix the heating cable, And it can be attached to the waist of the rail without special equipment. The installation is very gradual and durable.

   
   The choice of installation method

   The installation of the end part of the rail is the laying of the metal heating cable on the outside of the rail line, the installation of the main part of the rail is the laying of two metal heating cables on the outside of the rail line. The heating cable is laid to subsidize the track, and the heat-conducting track area is heated through the heat-conducting cement. On the outside, a galvanized steel groove is applied to the heat-conducting glue and is fixed under the track using fixing clamps and screws.

   A good effect is given by the use of electric heating for heating and snow removal of railway switches, which allows you to quickly melt ice and snow around the snow and on the movable bed.

The electric heated rail switch snow melting and ice melting system features a simple design, high impact resistance, convenient installation, low maintenance costs, reasonable protection function design, stable operation of automatic snow melting, and no impact on the existing rail circuit. It is safe to use railway equipment.