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CN-224199840-U - Heat conduction device of railway turnout snow melting system

CN224199840UCN 224199840 UCN224199840 UCN 224199840UCN-224199840-U

Abstract

The utility model discloses a heat conduction device of a railway turnout snow melting system, which comprises a heat conduction plate, an insulating layer and a heat preservation layer, and is characterized in that graphite is used as the heat conduction plate in the heat conduction device, a mica insulating layer and a polyurethane heat preservation layer are arranged on the surface, which is contacted with air, outside the graphite, of the heat conduction device, metal buckles are arranged outside the heat conduction device, the heat conduction device is arranged on two sides of a sliding bed table to enable the heat conduction device and the sliding bed table to be connected together, and the metal buckles are fixed through hexagon head bolts and hexagon head nuts. The heat conduction device provided by the utility model can transfer the heat originally lost by the heating strip in the air to the sliding bed table, the sliding bed plate and the switch rail, improves the heat efficiency and the snow melting efficiency of the snow melting system, reduces the use of electric energy, saves resources, has good heat uniformity of graphite, effectively avoids the influence of overhigh temperature at a certain place on the strength of the sliding bed table, and can be independently detached when the individual heat conduction device is damaged due to extrusion collision, thereby having good practicability and being convenient to maintain.

Inventors

  • HE QING
  • NI ZHIJIE
  • LI FEI
  • LIU FENGLI
  • ZHU HE
  • Pu Chunfan

Assignees

  • 兰州交通大学

Dates

Publication Date
20260505
Application Date
20250530

Claims (6)

  1. 1. The heat conduction device of the railway turnout snow melting system is characterized in that a heat conduction plate (13) is arranged in the heat conduction device (7), and an insulating layer (12) and a heat preservation layer (11) are arranged on the surface, which is contacted with air, of the heat conduction plate (13).
  2. 2. A heat transfer device for a railway switch snow melting system according to claim 1, characterized in that the heat transfer plate (13) is made of graphite.
  3. 3. A heat transfer device for a railway switch snow melting system as claimed in claim 1 wherein the insulating layer (12) is made of mica.
  4. 4. A heat transfer device for a railway switch snow melting system according to claim 1, characterized in that the insulating layer (11) is made of polyurethane.
  5. 5. The heat conduction device of the railway turnout snow melting system according to claim 1, wherein a metal buckle (8) is arranged outside the heat conduction device (7), and the metal buckle (8) connects the heat conduction device (7) with the sliding bed (6).
  6. 6. A heat transfer device for a railway switch snow melting system according to claim 5, characterized in that the metal clasp (8) is fixed by means of a hexagonal bolt (9) and a hexagonal nut (10).

Description

Heat conduction device of railway turnout snow melting system Technical Field The utility model relates to the technical field of railway turnout snow melting, in particular to a heat conduction device of a railway turnout snow melting system. Background When snowing in winter, railway turnout is covered by ice and snow easily and is frozen, if snow or ice exists on the turnout, normal conversion and close adhesion of the turnout can be affected, and then the transportation efficiency and driving safety of a train are affected. At present, the snow melting equipment mainly used in the railway turnout snow melting system in China is a heating strip, and is main equipment for converting electric energy into heat energy so as to achieve the purpose of melting snow. The existing heating strip is generally made of metal materials such as nichrome, snow and frost at the switch position can be eliminated by using the heating strip, so that the switch can be normally switched, closely attached and locked, and the running safety of a train is not affected. However, the heating strips made of the metal materials have the defects that most of the existing heating strips are arranged on the inner side rail slope of the stock rail, only one surface of the existing heating strips is attached to the stock rail, the heat transfer rate between the heating strips and the stock rail is very slow, so that the heat loss rate of the heating strips is very high, the heat transfer is uneven, the existing heating strips are not in direct contact with the sliding bed table and the sliding bed plate, the existing heating strips cannot be directly heated, the snow melting effect is poor, and the power consumption is high. Disclosure of Invention The utility model aims to provide a heat conduction device of a railway turnout snow melting system, which aims to solve the defects in the prior art. In order to achieve the aim, the heat conduction device of the railway turnout snow melting system comprises a heat conduction plate, an insulating layer and a heat preservation layer, wherein the insulating layer and the heat preservation layer are arranged at the position of the outer side of the heat conduction plate, which is contacted with air. The heat conduction device is externally provided with metal buckles, and the metal buckles can install the heat conduction device on two sides of the sliding bed table. The metal buckle is fixed through a hexagon head bolt and a hexagon head nut. According to the utility model, the material used for the heat conducting plate is graphite, the material used for the insulating layer is mica, and the mica has higher heat resistance, so that the structure and the performance of the mica can be kept at higher temperature. The heat-insulating layer is made of polyurethane material, and the polyurethane material has high strength and good water resistance, and can play a role in water resistance on the premise of heat insulation. The material used for the heat conducting plate is graphite, so that the heat uniformity of heat conduction is ensured. The metal buckle uses the steel bar, connects the heat conduction device and the sliding bed together through the steel bar, and is fixed through the hexagon head bolt and the hexagon head nut beside the heat conduction device. The beneficial effects of the utility model are as follows: (1) The heat conducting material used in the utility model is graphite, the heat conductivity coefficient of the graphite is far greater than that of air, the heat conducting performance is excellent, and the heat uniformity is good. No oxidation phenomenon exists in the heating process. (2) The heat conduction device provided by the utility model has a larger contact area with the sliding bed table, the sliding bed plate and the switch rail, so that the direct contact and heat transfer efficiency of the heat conduction device on the sliding bed table, the sliding bed plate and the switch rail are ensured, and the snow melting efficiency is further improved. (3) The heat conduction device provided by the utility model can fully utilize the heat transferred to the air by the heating strip, and transfer the heat to the sliding bed table, the sliding bed plate and the switch rail by using heat conduction, so that the heat efficiency is high, the power consumption and the heat loss rate of the heating strip are reduced, the snow melting efficiency is greatly improved, and the snow can be melted in a more efficient, energy-saving and low-cost manner on the basis of the prior art. (4) The heat conducting device provided by the utility model is fixed by using steel bars, hexagonal head bolts and hexagonal head nuts and is arranged on two sides of the sliding bed table. When the individual heat conduction devices are damaged due to extrusion collision, the heat conduction devices on the sides of the slide plate can be independently detached, so that the practicality is good and the mainten