RU142522U1 - DEVICE FOR INDUCTION HEATING ARROW - Google Patents

Abstract

A device for induction heating of a turnout switch, consisting of an increased frequency generator and induction heaters, in which an external environmental sensor is connected to the transmitting voltage converter, by the signal of which it is turned on and heating to the required temperature is performed, and the increased frequency generator is based on a resonant transmission a step-up voltage converter, to the output of which a single-wire power line is connected, to which through a step-down transformer the mator, or without induction heaters connected in series or in parallel, characterized in that the induction heaters are made in the form of a winding of a multiwire wire that is wound around the side of the arrow shoe, a lining with a pillow, a root shoe, an arrow shoe with a hard terminal, a slip pillow or pads or can be embedded in the rubber lining under the shoe or laid in a chamfer, which is made in the side face of the arrow shoe, lining with a pillow, the root shoe , switch shoe with a rigid terminal, slip cushion or lining, while the coil of the induction heater is sealed for mechanical insulation, and the heating of these switches is due to the eddy currents induced from the winding of the induction heaters.

Description

The utility model relates to the field of railway transport, and in particular to devices for heating rail lashes and switches in order to prevent the formation of ice accumulation in winter.

During precipitation in the form of snow, as well as during temperature extremes, there is a high probability of formation of ice accumulations that impede the free movement of arrows. To avoid this, the snow is removed manually, or blown away with compressed cold or hot air, or heating elements are used to melt snow or ice. To reliably transfer the wit from one position to another, to prevent the formation of ice between the wit and the frame rail, it is necessary to heat the switch shoe, lining with a pillow, root shoe, switch shoe with a hard terminal, slip cushion or lining.

Known devices for heating turnouts, containing electric heaters based on electric heating elements (RF patent No. 133995, publ. 04.09.2012, RF patent No. 118144, publ. 02.11.2011).

Known devices for heating turnouts on the basis of heating tapes (RF patent No. 2470108, publ. 25.04.2008)

The disadvantage of these inventions is low efficiency, due to the use of contact heating and heat transfer from the heating element to the heated part.

A device is known for electric heating of frame rails of directional heating, in which an alternating current power source with a single-phase transformer output, the secondary windings of which are connected to electric heaters, and a heating intensity regulator is included in the power supply, it is additionally provided that the frame sections to be heated are used as electric heaters rails, for which purpose at the ends of the indicated sections bolted electrical terminals are provided and to the pair of terminals each to the rail connected to the conclusions of the corresponding secondary winding of the output single-phase transformer (RF patent No. 104941, publ. 08.10.2010).

Known devices for induction heating of a turnout switch containing a power source, temperature and precipitation sensors, a control system that controls the intensity of heating, electric heaters, a power source generates alternating current of high-medium frequency, the control system works on the principle of frequency control of the device’s power, and electric heaters are used inductor (RF patent No. 114960 dated 11/22/2011).

A disadvantage of the known devices is the high energy consumption for heating the frame rail along the entire length and the need to install a high-frequency generator near the heated part.

The closest in technical essence to the proposed utility model is a device for induction heating of rails and arrows, consisting of a high-frequency generator and an induction heater, in which the high-frequency generator is based on a resonant transmitting step-up voltage converter, to the output of which a single-wire power line is connected, to which is connected to a step-down transformer, to the output of which inductors in parallel, made on the basis of ferrite or metal cores, while the inductors are installed on a heated surface with or without a gap, and an external environmental sensor is also connected to the transmitting voltage converter, by the signal of which it turns on and heating to the required temperature occurs (RF patent 135655, publ. 05.31.2013 )

A disadvantage of the known device is the increased energy consumption due to the heating of the rails along the entire length, as well as the heating of the turnout elements — the switch shoe, the lining with a pillow, the root shoe, the switch shoe with a hard terminal, the slip cushion or the lining only occurs due to contact conduction heat and therefore most of the energy is consumed without giving the desired effect.

The objective of the proposed utility model is to simplify the design of the device for heating the switch to a predetermined temperature and to reduce energy consumption by heating the switch shoe, lining with a cushion, root shoe, switch shoe with a hard terminal, slip cushion or lining by induction heating.

The technical result of the proposed device is the heating of a switch shoe, a pad with a cushion, a root shoe, a switch shoe with a hard terminal, a slip pad or a pad to a predetermined temperature in automatic mode, using an induction heating device with a remote generator of increased frequency.

As a result of the use of the proposed utility model, the direct switch shoe, the lining with the pillow, the root shoe, the switch shoe with a hard terminal, the slip pillow or the lining - the turnout elements are heated.

The above technical result is achieved by the fact that in the device for induction heating of the turnout switch, consisting of an increased frequency generator and an induction heater, in which an external environmental sensor is connected to the transmitting voltage converter, by the signal of which it turns on and the generator is heated to the required temperature and increased frequency is based on a resonant transmitting step-up voltage converter, to the output of which a single-wire is connected a power line to which induction heaters are connected in series or in parallel through a step-down transformer or without it, while induction heaters are made in the form of a winding of a multi-wire wire that is wound around the side of the switch shoe, a lining with a pillow, a root shoe, and a switch shoe with a hard with a terminal block, cushions or lining or can be embedded in the rubber lining under the shoe or laid in a chamfer, which is tucked in the side of the switch tower aka, lining with a cushion, a root shoe, an arrow shoe with a rigid terminal, a slip cushion or a lining, the induction heater winding is sealed for mechanical insulation, and these switches are heated by eddy currents induced from the windings of induction heaters.

The essence of the proposed utility model is illustrated in FIG. 1 and FIG. 2.

In FIG. 1 is an electrical diagram of a device for induction heating of a railroad switch.

In FIG. 2 shows a general diagram of a device for induction heating of a turnout switch, in which induction heaters in the form of a winding are wound around a side face of a switch shoe, a pad with a pillow, a root shoe, a switch shoe with a hard terminal, a slip pad or a pad.

The device of FIG. 1. contains an increased frequency generator 1, a resonant step-up transformer 3 with a capacity of 2, a single-wire power line 4, induction heaters 6, ground 7, own capacitance or ground 8, a heated part (switch shoe, lining with a pillow, root shoe, switch shoe with hard terminal or cushion) 9 and external environmental sensor 10.

The device of FIG. 2. contains an arrow shoe, (a lining with a pillow, a root shoe, an arrow shoe with a hard terminal, a sliding pillow or a lining) 9, a frame rail 11, a wit 12 and an induction heater 6, in the form of a winding wound around the side face of the arrow shoe, a lining with a cushion, a root shoe, an arrow shoe with a rigid terminal, a cushion or lining 1.

The supply voltage (Fig 1) is supplied to the frequency converter 1, the output of which is connected to a resonant step-up transformer 3 with a capacity of 2, one output of the output winding of the transformer is connected to ground 7, the second is connected to a single-wire power line 4. An input winding is connected to the power line by one output step-down transformer 5, the second output terminal of the input winding is connected to its own capacitance or ground 8, the induction chain is connected in parallel to the output winding of the step-down transformer Heater 6, which is installed on the side of the heated part 9, an external environmental sensor 10 is connected to the generator of high frequency 1.

On a switch shoe, a lining with a pillow, a root shoe, a switch shoe with a hard terminal or a slip pillow 9, a frame rail 11 and a wit 12 are installed, the induction heater is wound around the side surface 9.

The device operates as follows: the voltage of the supply network is increased by the frequency converter 1 in frequency to a level of 1-100 kHz, then fed to a step-up transformer 3 through a capacitance 2, where it increases in voltage to a level of 1-10 kV, from the output of a step-up transformer, the voltage is supplied to a single-wire power line 4, to which a step-down transformer 5 is connected, to the output winding of which induction heaters 6 are connected in parallel, while the output voltage of the step-down transformer 5, respectively their working voltage, induction heaters are located on the side face of the heated part 9, automatic control is carried out by an external environmental sensor 10, which gives a signal to turn on the frequency converter. A current will flow through the induction heaters 6 and create a magnetic field acting on the switch shoe (pad with pad, root shoe, switch shoe with a hard terminal, slip pad or pad) 9. The eddy currents arising in the metal body heat the switch shoe, ( lining with a cushion, a root shoe, an arrow shoe with a hard terminal, slip cushions or lining), and the process of ice melting and snow melting takes place.

Induction heaters are made in the form of a winding wound around a side edge of an arrow shoe, a lining with a pillow, a root shoe, an arrow shoe with a hard terminal, a slip cushion or a lining, and can be embedded in a rubber lining or laid in a special side chamfer of the arrow shoe lining, a lining with a pillow , a root shoe, an arrow shoe with a hard terminal, a cushion or lining, and is sealed for mechanical isolation.

Energy is saved due to the induction heating process and due to automatic control, which includes heating only when necessary.

The power spent on heating by the proposed device can be 100-500 W / m, while the rail can be heated at 30-100 ° C.

The length of the power line between the generator and the heated turnout can reach 20 km.

Claims (1)

A device for induction heating of a turnout switch, consisting of an increased frequency generator and induction heaters, in which an external environmental sensor is connected to the transmitting voltage converter, by the signal of which it is turned on and heating to the required temperature is performed, and the increased frequency generator is based on a resonant transmission a step-up voltage converter, to the output of which a single-wire power line is connected, to which through a step-down transformer the mator, or without induction heaters connected in series or in parallel, characterized in that the induction heaters are made in the form of a winding of a multiwire wire that is wound around the side of the arrow shoe, a lining with a pillow, a root shoe, an arrow shoe with a hard terminal, a slip pillow or pads or can be embedded in the rubber lining under the shoe or laid in a chamfer, which is made in the side face of the arrow shoe, lining with a pillow, root shoe , switch shoe with a rigid terminal, slip cushion or lining, while the coil of the induction heater is sealed for mechanical insulation, and the heating of these switches is due to the eddy currents induced from the winding of the induction heaters.

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