JPS5830803Y2 - Comb-shaped branch duct of turnout hot air snow melting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the heating duct in the turnout section of the track.

Conventionally, devices as shown in FIGS. 1 and 2 have been generally used as snow melting devices for turnout sections.

The snow melting device shown in Fig. 1 covers the outlet of a warm air duct 5 inside a tongue rail 2 of a turnout section with a plate 4 having a convex portion, and moves with the turns of the tongue rail, allowing hot air to pass through the lower part of the tongue rail and the tongue rail. This structure heats the moving floor plate 3 and also blows out air between the tongue rail and the basic rail, and this is called the inner cover plate method.

The one shown in Fig. 2 is called the outer cover plate method, in which a cover plate 6 through which warm air passes is brought into direct contact with the outside of the basic rail 1 of the turnout section, and the warm air covers the lower part of the basic rail and the floor plate 3. It has a structure in which it heats up and also blows out between the basic rail and the tongue rail, and in both Figures 1 and 2, the area between the tongue rail and the basic rail and the floorboard is heated to melt snow and keep it warm. A: It is intended to be carried out smoothly and completely.

However, according to the above-mentioned snow melting device, in the case of the inner cover plate method, there is a risk that the cover plate will peel off and become an obstacle when a train passes, and the snow melting effect range is limited to the area between the tongue rails 2 and 2' and their length. was limited in scope.

In addition, with the outer cover plate method, the cover plate can be installed over a long distance along the basic rail 1, so the snow melting effect range is wide, and it can be fixed to the sleepers without worrying about peeling. There was a problem in that the rail could not be maintained or inspected because it covered the fastening bolts 7 for fixation.

However, these fastening bolts require maintenance and inspection, especially in the turnout section, to prevent loosening due to vibration.

In addition, in Figure 2, since the hot air outlet comes out from part A, it is not necessarily blown out to B between tongue rail 2 and basic rail 1, but depending on the seasonal winds in the area, it flows in the opposite direction and exerts a snow melting effect. Sometimes it wasn't possible.

Furthermore, since the gap C between the trackbed ballast surface between the sleepers and the lower surface of the rail was not constant, the amount of hot air blown out varied widely.

The present invention aims to solve the above-mentioned conventional problems.

An embodiment of the present invention will be described below with reference to FIG.

1 is the basic rail, 2 is the tongue rail, 3 is the tongue rail 2
A floorboard for sliding.

A hot air duct 5 is connected to a hot air generator and communicates with the main duct 8.

The main duct 8 is a long box-shaped duct fixed on the sleeper 9 at a predetermined distance from the basic rail 1 on the outside of the basic rail 1, and is a branch duct from the main duct 8 toward the basic rail 1. 1
1 is a so-called comb-shaped branch duct arranged between extending sleepers 9, and is further extended to the lower part of the basic rail 1.
Nozzle blowout holes 13, 14 and slits 15 are provided on one side of 2.
A nozzle section consisting of a nozzle section is provided, and the nozzle section is arranged so that warm air is blown into the gap section B between the basic rail 1 and the tongue rail 2.

The upper surface of the nozzle outlet 13, 14 is covered with a heat-resistant insulating plate 16.

Furthermore, a warm air guide 17 having a hook-shaped cross section is provided on the outer side of the basic rail 1.

This blows hot air onto the side surface of the individual rail 1 using a nozzle blowing hole 13 through a hot air guide, and the inside and outside of the hot air is covered with heat-resistant insulating plates 18.

The nozzle blow-off hole 14 is a position for blowing air toward the bottom of the basic rail 1.

To explain the operation in the configuration shown below, the hot air is guided by the hot air generator to the main duct 8 through the hot air duct 5, and then through the main duct 8, the comb-shaped branch duct 11, and the nozzle blow-off hole 13 of the blow-off pipe 12. .14 and ejects from the slit 15.

The hot air ejected from the nozzle blowout hole 13 is directed by the hot air guide 17 and directly warms the sides of the basic rail and the floorboard.

The hot air guide 17 also plays the role of heat retention.

The nozzle outlet 14 heats the bottom of the basic rail 1 and the floor plate.

Furthermore, the hot air blown out from the slit 15 warms the tongue rail 2 and melts snow and ice interposed between the basic rail 1 and the tongue rail 2.

The heat-resistant insulating plates 16 and 18 are used to prevent electrical continuity between the left and right basic rails by means of a duct.

As described above, according to the present invention, main ducts are arranged at a predetermined length at regular intervals parallel to the rails on the outer side of the rails, and comb-shaped branch ducts extending from the main ducts to the rails are connected to sleepers. By installing multiple spaces in between, we placed the hot air to ensure that it reaches the location where it needs to be heated, which eliminates maintenance problems such as dog nails, and achieves the snow melting effect over long distances around the outside, which is an advantage of the conventional outside covering method. By continuing to do this, the unstable element between the track bed ballast and the rail, which was a drawback, was removed, and the air was ejected from the nozzle, so the air pressure inside the main duct 14 was uniform, eliminating the influence of seasonal winds. The velocity distribution of the hot air blown out became uniform.

In addition, hot air from the nozzle can now reach the center of the rail.

Therefore, this configuration can be used at points with long switching distances used in wide orbits and high-speed orbits, and the effect is great.

[Brief explanation of the drawing]

FIG. 1 shows a conventional hot air snow melting device using an inner cover plate method. FIGS. 2 and 2-1 also illustrate a conventional outer cover system. FIG. 3 is a cross-sectional view of the comb-shaped cover plate according to the present invention. 1... Basic rail, 2... Tongue rail, 3... Floor plate, 4... Inner cover plate, 5...
... Warm air duct, 6 ... Outer cover plate, 7.
...Tightening bolt, 8...Main duct, 9.
...Sleeper, 10...Hot air generator, 11.
...Comb-shaped branch duct, 12...Blowout pipe, 13.14...Nozzle blowout hole, 15...
...Slit, 16...Heat-resistant insulating plate, 17.
... Warm air guide, 18 ... Heat-resistant insulating plate, B ... Gap between basic rail 1 and tongue rail 2.

Claims (1)

[Scope of utility model registration request] A main duct 8 is arranged on sleepers at a certain distance outside the basic rail 1, a comb-shaped branch duct 11 is provided between the sleepers from the main duct, and the branch duct is extended and arranged below the basic rail. Basic rail and tongue rail 2 from the tip of the blowout pipe 12
a slit 15 through which hot air is ejected between the base rail, a nozzle blowout hole 14 that blows out hot air at the bottom of the basic rail, and a nozzle blowout hole 13 arranged to heat the side surface of the basic rail and the floor plate 3;
A comb-shaped branch duct of a turnout snow melting device comprising a warm air guide 17 that changes the direction of flow of hot air ejected from the nozzle outlet.