RU138884U1 - ARROW ELECTRIC HEATING DEVICE - Google Patents

Abstract

Electrical switch heating device for cleaning snow and ice, containing a power source and heating elements, characterized in that the control system additionally provides a timer for the temporary distribution of heating of the switch elements based on a timer and an executive relay operating in a cyclic automatic on and off mode without intervention station duty officer (chipboard).

Description

The utility model relates to railway transport, and more specifically to devices for electrical heating in the winter.

The long-term operation of the electrical heating of turnouts on the railways of the Russian Federation showed that due to manual control, the electrical heating system in winter conditions often ceases to function and it becomes necessary to include a backup control circuit independent of the temperature condition of the rails and climatic conditions. The cause of unstable operation is the uneven distribution of heat on the switches. The reliability of the system with this control also reduces the use of outdated relay equipment, the uptime coefficient of which is significantly lower than modern electronic components.

In this regard, the author proposed a utility model based on microprocessor technology, which allows you to set two automatic modes of operation in a cyclic mode: in light and heavy snowfall. Both modes provide thawing of snow between wits and guardrails of the crosspiece of turnouts with minimal energy consumption. For this purpose, in the electric heating control system, an additional sensor is provided for a temporary distribution of heating of the turnout elements based on a timer (Fig. 1). It consists of power supply, time counter, transistor, LED for monitoring automatic on and off modes and an executive relay.

It is known: a device for cleaning the turnout of snow and ice by electrical heating. The invention of RU 2415988 C2. Authors: Inkov Yu.M. et al. Published: 04/10/2011 Bul. No. 10.

It is also known: device for electrical heating of the railroad switch. Utility model RU 17325 U1. Authors: Likhachev M.P. et al. Published: 03/27/2001.

The closest in technical essence to the claimed device is a utility model RU 17325. U1, containing a programmable single-chip microcontroller connected to communication with a dispatch console.

The disadvantage of this device (prototype) is that based on the PTE railway. the transport position of the pressed and squeezed wits is controlled electrically on the control panel, and the indicator of snow between the wit and the frame rail does not provide a reliable analysis of the ingress of snow or other objects, which threatens traffic safety, as well as the complexity of technical implementation and low accuracy.

The purpose of the utility model is to expand the functionality of the above-mentioned known devices.

The technical result of the utility model is to increase the efficiency of snow melting while reducing energy consumption.

The technical result in this utility model is achieved due to the fact that in addition to the electric heating control scheme, a sensor for the temporary distribution of heating of the turnout elements based on a timer on contactless elements is provided, operating in a cyclic mode of automatic switching on and off at intervals. The use of the main option of electric heating according to the design of the GTSS institute (TO - 168) is often not suitable in winter conditions of operation, due to sudden failures, the manual labor of the station duty (DSP) is useless.

Figure 1 shows the operation algorithm of the proposed device containing a power supply, toggle switches T1 and T2 for turning on and off automatic modes, a master oscillator, a key, a start circuit 1, 2 and a timer 1, 2.

Figure 2 presents a schematic diagram of a sensor for the distribution of heating of the turnout elements for cleaning from snow and ice. The device operates on a 24 V DC power supply. The chips AT89C5120PS, K175IE5, 564TL1 and a crystal oscillator 32768 Hz were used as a chip for counting time using the developed special program. By turning on the T1 toggle switch, the device is started, and by turning on the T2 toggle switch, the mode of electric heating is selected. Further in automatic mode, timer 1 and timer 2 operate through the master oscillator and key, respectively, in conditions of light or heavy snowfall in continuous mode without the intervention of chipboard.

Thus, the application of the proposed device minimizes manual work on cleaning arrows from snow, and with the proper selection of power of heating elements and temperature in the temperature control system, reliable operation of the arrows in any weather conditions with optimal energy consumption.

Literature:

- Marquardt K.G. Power supply of electrified railways. - M .: Transport, 1982. - 528 s.

- Ageikin D.I. Sensors of control and regulation: ref. Materials

Claims (1)

Electrical switch heating device for cleaning snow and ice, containing a power source and heating elements, characterized in that the control system additionally provides a timer for the temporary distribution of heating of the switch elements based on a timer and an actuating relay operating in a cyclic automatic on and off mode without intervention station duty officer (chipboard).

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