JP2001279636A - Hot air device for melting carried-in snow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a slender hot air blowout duct in front of a turnout and previously melt and remove carried-in snow in front of the turnout. SOLUTION: The hot air blowout duct 14 is installed between tracks 8, 8 in front of the turnout 2 and spaces 17, 18 are formed between each side face of the duct 14 and each of rails 8, 8 for storing snow carried from a train so that hot air can be blown out of blowout ports 19, 20 of the duct 14 into the spaces 17, 18. In this way, when a train holding the carried-in snow is moved in, the carried-in snow is stored in the spaces 17, 18 between the duct 14 and each of the rails 8, 8. In the spaces 17, 18, the snow is melted by the hot air blown out of the blowout ports 19, 20 of the duct 14. There is no case that the train carries the carried-in snow into the turnout, therefore causing no failure in point change-over. Primitive work with manpower is eliminated and work is automated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot blast in which snow is carried in front of a turnout and melted and removed by hot air so that the train does not bring snow into the turnout on a railway line. The present invention relates to a snow melting device of the type.

[0002]

2. Description of the Related Art On a railway line in a snowy area, when snow falls,
Snow accumulates in the turnout and the point does not switch. For this reason, when the snow starts to fall or when the snow is expected, the snow that has fallen on the branching device 2 is melted and removed using the snow melting device 1 as shown in FIGS.
In the conventional snow melting apparatus 1, as shown in the overall schematic perspective view of FIG. 6, kerosene in a fuel tank 3 is burned by a hot air generator 5 equipped with a burner (not shown) and taken in from an air inlet. Hot air is generated by mixing with fresh air, and the generated hot air is supplied and discharged through a duct 6 and a track cover 7 to a portion of the rail 8 where the branching device 2 is installed, so that snow in the portion is removed by melting snow. ing.

As shown in FIG. 7B, the track cover 7 is provided with base portions 9 of the tong rails 9 of the branching device 2.
a and 9a, and a predetermined gap is formed between the tie 10 and the sleeper 10. A gap is formed between the sleepers 10 between the ballast or slab and the bottom of the rail. Therefore, the hot air supplied to the track cover 7 is blown to the outside through these gaps to remove the snow that has fallen. The kerosene is usually stored in an underground oil tank 11, and only a necessary amount is supplied to an external fuel tank 3 via a pump 12.

[0004] As described above, at the branch 2, it is possible to melt and remove the snow that has fallen around the branch 2 by blowing out hot air. However, in a heavy snow area, the train may bring snow falling on the front side of the turnout 2 to the turnout 2. In the case of this so-called carry-in snow as well, the snow may bite between the tongue rails 9, 9 of the branching device 2 and the rails 8, 8, so that the points are not switched. For this reason, conventionally, pipes, nozzles, and the like for pumping and spraying groundwater with a pump are installed on the front side of the branching device 2, and the pumped groundwater is sprinkled into a track just before the branching device to melt snow. The snow on the near side of the turnout is prevented from being brought into the turnout 2 by the train. In other words, conventionally, sprinkling snow melting was carried out for the snow brought in. As another conventional countermeasure against carried snow, primitive snow removal work was also performed.

[0005]

However, there is a disadvantage that the amount of sprinkled snowmelt in a large-scale campus is enormous, and the drop of groundwater level becomes a problem.
In addition, there is a disadvantage that the initial cost per set of the branching device 2 is higher in a small-scale campus than in a large-scale campus. On the other hand, the snow removal work by human power has a heavy burden on the workers, and there are problems such as aging of the snow removal workers and securing human resources. Furthermore, modernization has been implemented to reduce the burden on workers by mechanizing or omitting them, and to improve work efficiency and facilitate track maintenance and inspection work. It was against the request.

[0006]

SUMMARY OF THE INVENTION The present invention has been improved and eliminated in view of the above-mentioned conventional problems. An elongated duct for blowing out hot air is installed in front of the turnout, and is brought in in front of the turnout. It is to remove snow in advance.

According to the first aspect of the present invention, a duct for blowing hot air is provided between the gauges on the front side of the branching device, and the duct is provided on both sides of the duct. A hot-air snow melting device for snow brought in, wherein a space for storing snow brought in by a train is formed between the rail and a rail, and hot air is blown from a duct toward the space. When the train enters with the snow brought in,
The snow brought in is stored in the space between the duct and the rail. Then, the hot air blown from the duct in this space melts the snow. Therefore, the train does not bring snow into the turnout.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. The same reference numerals as those in the conventional case denote the same members. 1 to 5 relate to an embodiment of the present invention,
FIG. 1 is a longitudinal sectional view of a track showing the entire hot blast snow melting apparatus 13, FIG. 2 is a vertical sectional side view of the hot blast snow melting apparatus 13, and FIG. 3 is a perspective view of a track on which the hot blast snow melting apparatus 13 is installed. 4A and 4B show the leading portion 15 of the duct 14, wherein FIG. 4A is a side view, FIG. 4B is a plan view, and FIG. 4C is an end view on the opening side. FIG. 5 shows the body part 16 of the duct 14.
FIG. (A) is a side view, FIG. (B) is a plan view, and FIG. (C) is an end view on the receiving port side.

As shown in FIGS. 1 and 3, in the hot air generator 13 of this embodiment, a duct 14 is installed at an intermediate portion between the left and right rails 8, 8, and the left and right rails 8, 8 are provided. Space 1 to accommodate snow brought in between
7, 18 are formed. The duct 14 is formed of a synthetic resin material, and includes head portions 15 and 15 at both front and rear ends and a middle body portion 16. As shown in FIG. 4, the head portion 15 has an inclined surface 15a whose height gradually decreases toward the front and rear ends in the traveling direction of the train. And
A number of hot air outlets 19 are provided near the bottom of the peripheral side wall other than the open end surface. Further, as shown in FIG. 5, the body portion 16 has the shape of a quadrangular prism with both ends in the longitudinal direction opened, and a large number of hot air outlets 20 are provided near the bottom on both sides. The opening end face on one side is formed slightly larger so that the adjacent body part 16 can be inserted. The head portion 15 and the body portion 16 are fixed to the sleeper 10 via a substantially U-shaped band or metal fittings (neither is shown).

The leading portion 15 and the body portion 16 of the duct 14 have an opening surface having a width of 235 mm.
The height is set to 135 mm. Also the first part 15
Has a total length of 300 mm, and the total length of the body portion 16 is 20 mm.
00 mm. The hole diameters of the hot air outlets 19 and 20 are set to 18 mm, and the pitch is 100 m.
m. The reason why the size of the duct 14 is set to be extremely small and the hole diameter and the pitch of the outlets 19 and 20 are limited is that the duct 14 is installed between the rails 8 and 8 so There is a prerequisite that the limits and vehicle limits must be met. Under these prerequisite conditions, it is necessary to secure a sufficient area to accommodate the snow brought in by the train, and to ensure sufficient blowing power of hot air throughout the secured area to melt the snow This is because it is necessary to satisfy conditions such as being removable. In this embodiment, the installation area of the duct 14 is 25 m in the traveling direction of the train.

The duct 14 is supplied with hot air from the hot air generator 5 through an intermediate duct 6 buried in the ground. The communication between the duct 14 and the intermediate duct 6 is established by the duct 14. If it is provided near one of the ends, the blowing output of hot air may be weak near the other end. For this reason, in this embodiment, as shown in FIG.
It is connected to the intermediate duct 6 and is provided with a wind direction guide plate 21 at the connection portion in the left-right direction.

Next, the operation of the hot-air-type snow melting apparatus 13 having the above-described configuration will be described. This device 13 is installed on the front side of the branching device 2, and when the train brings in snow falling on the front side of the device 13, the brought-in snow is transmitted between the duct 14 and the left and right rails 8, 8. It is gradually accommodated in the spaces 17 and 18 formed therebetween and leveled by the bottom surface of the train body, during which snow is removed from the front of the train. That is, when the train arrives at the turnout side of the duct 14, all of the snow brought in is accommodated in the spaces 17 and 18. The housed snow is taken from the hot air generator 5 through an underground intermediate duct 6 and the snow melting duct 14 laid between the rails 8.
And is gradually melted by the hot air blown out of the outlets 19 and 20 vigorously. Therefore, according to this embodiment, there is no possibility that carry-in snow is carried to the turnout 2 and causes a point switching failure.

By the way, the present invention is not limited to the above-described embodiment. For example, the size and the total length of the duct 14 (the length of the installation area), the hot air outlets 19 and 20
The hole diameter and pitch of the hot air generator 5
It is possible to change it with an appropriate width according to the snow melting capacity (generated heat, blowing capacity) and the like.

[0014]

As described above, in the present invention,
A duct for blowing hot air is installed between the rails on the front side of the branching device, a space for storing the snow brought in by the train is formed between both sides of the duct and the rail, and hot air is blown from the duct toward the space As a result, when the train enters with the carry-in snow, the carry-in snow is stored in the space between the duct and the rail. Then, since the snow is melted by the hot air blown out of the duct in this space, the train is not brought into the turnout and the snow is not brought in, so that the switching of points and the like are not caused. In addition, primitive human labor can be eliminated, and automation can be performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a track showing an entire configuration of a hot-air snow melting apparatus according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of a duct of the hot-air snow melting apparatus according to the embodiment of the present invention.

FIG. 3 is a perspective view showing the entire hot-air snow melting apparatus according to one embodiment of the present invention.

4A and 4B show a leading portion of a duct of the hot-air-type snow melting apparatus according to one embodiment of the present invention, wherein FIG. 4A is a side view, FIG. 4B is a plan view, and FIG. FIG.

5A and 5B show a body part of a duct of the hot-air snow melting apparatus according to one embodiment of the present invention, wherein FIG. 5A is a side view, FIG. 5B is a plan view, and FIG. FIG.

FIG. 6 is a schematic perspective view showing a configuration of a conventional snow melting device in a railway line.

7A and 7B show a conventional snow melting device for a branching device in a railway line, wherein FIG. 7A is a plan view and FIG.
FIG. 3 is a sectional view taken along line XX of FIG.

[Explanation of symbols]

5 hot air generator, 6 intermediate duct, 8 rail, 9
... Tong rail, 10 ... Slumber, 13 ... Hot air snow melting device, 14 ... Duct, 15 ... Head part of the duct, 16 ... Body part of the duct, 17, 18 ... Housing space for brought-in snow, 19,20 ... Hot air blowing exit

Continuing from the front page (72) Inventor Yasuhiro Sakai 2-4-2-4 Shibata, Kita-ku, Osaka-shi West Japan Railway Company (72) Inventor Takashi Nishida 5-4-2, Nishinakajima, Yodogawa-ku, Osaka Co., Ltd. F-term (reference) in JR West Technos 2D056 BA01

Claims (1)

[Claims] A duct for blowing hot air is provided between the rails on the front side of the branching device, and a space is provided between both side surfaces of the duct and a rail for accommodating snow carried by a train. A hot-air type snow melting device for brought-in snow, wherein hot air is blown from a duct.