JP3940505B2 - Snow melting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a snow melting device for preventing a tongrel that distributes a train from one track to another track from becoming inoperable due to freezing, snowfall, or the like.
[0002]
[Prior art]
As shown in FIG. 8, the Tongrel 1 is a facility for allocating trains from one track to another. The tip region 2 of the Tongrel 1 has a roll integrated with the Tongrel 1. A rod 3 is arranged. The electric rolling machine 4 causes one of the tonglers 1 to be in close contact with the basic rail 5 by moving the rolling bar 3 via an operating rod 7 passed between two sleepers 6. It is.
[0003]
By the way, a snow melting device may be installed for the purpose of preventing the Tongrel 1 from becoming inoperable due to freezing or snowfall. Conventionally, as this type of snow melting device, a device designed based on the “Japanese National Railway Standard JRS75599-6B-15AROM (revised on September 10, 1971) branching snow melting device (Ondol type)” is used. It was. This snow melting device maintains the state that can be rolled by warming the rails and floor boards and melting the ice and snow, because the branching devices such as the station yard and the yard are not able to roll due to freezing or snowfall. .
[0004]
As this type of snow melting device, for example, as shown in FIGS. 9 (a) and 9 (b), a hot air generator 101 buried under the ground, and the hot air generator 101 crosses under the rail and then extends upward. There is known a snow melting device 100 that includes a metal duct 102 that is opened substantially in the center of the above and a cover plate 103 that covers an opening 102 a of the duct 102. Among them, as shown in FIG. 10, the hot-air generator 101 supplies a combustion air to the burner 104 through a conical air guide 107 and blows it into the duct 102 as shown in FIG. And a pump 106 that supplies fuel to the burner 104. Further, the metal duct 102 is formed in a shape extending upward so as to open in the center of the track after traversing under the rail at a depth of 50 to 60 cm. Further, the cover plate 103 warms the surface of the cover plate 103 by confining hot air, or warms the tongrel 1 or the like by blowing hot air from the cover plate 103 toward the tongrel 1.
[0005]
[Problems to be solved by the invention]
The conventional snow melting device 100 is an ondol type (a method of heating by confining hot air), and only the portion of the cover plate 103 facing the opening 102a of the duct 102 is likely to become hot, and uneven temperature distribution when viewed as a whole. Therefore, it was difficult to uniformly melt the ice and snow around Tongleil 1. In addition, in the tip region 2 of the Tongrel 1, members that require periodic inspection such as various fastening bolts in addition to the rolling rod 3 are arranged, but since the tip region 2 is covered by the cover plate 103, The work of removing the cover plate 103 was necessary at the time of periodic inspection, which was complicated.
[0006]
Further, the duct 102 of the conventional snow melting device 100 is disposed at a depth of 50 to 60 cm, for the following reason. That is, first, when forming the ground of the track, a tamping operation is performed to stabilize and stabilize the embankment, but the duct 102 is buried deeply so as not to interfere with the tamping operation. is there. Secondly, the train position information may be obtained by detecting the current flowing between the basic rails 5 and 5 through the train, but the metal duct 102 is buried shallowly between the basic rails 5 and 5. This is because current may flow between the basic rails 5 and 5 through the duct 102, which may affect the reliability of the train position information. However, when the duct 102 is embedded at a depth of 50 to 60 cm, a tamping work is required each time, and there is a problem that it takes a lot of construction cost and construction time.
[0007]
Furthermore, since the hot air generator 101 of the conventional snow melting device 100 uses the gun-type burner 104, there is a problem that the particle size of the fuel when ignited by the spark plug 108 is large and the combustion noise is large. . In addition, since one blower 105 is responsible for both the supply of combustion air and the supply of air for sending hot air to the duct 102, for example, if the emphasis is placed on combustion, a sufficient amount of air is supplied to the duct 102. In some cases, it cannot be delivered, and when the air flow rate to the duct is regarded as important, combustion is incomplete and soot tends to be generated.
[0008]
Furthermore, the conventional snow melting apparatus 100 was remotely operated by CTC (Central Traffic Control), but since the operator turned on and off the switch, it could not be said that proper operation was always performed.
The present invention has been made in view of the above problems, and a first object is to provide a snow melting device that can uniformly melt snow in the vicinity of the Tongrel and that can easily check various members arranged in the tip region of the Tongrel. It is to provide. The second object is to provide a snow melting device that does not require tamping during duct replacement work. A third object is to provide a snow melting device in which noise during operation is suppressed. A fourth object is to provide a snow melting device that is less likely to cause incomplete combustion and that can freely set the blowing rate. A fifth object is to provide a snow melting device capable of appropriate operation with a simple configuration.
[0009]
[Means for Solving the Problems and Effects of the Invention]
The present invention is a snow melting device that prevents the Tongrel that distributes a train from one track to another track from becoming inoperable due to freezing or snowfall, At least a stick was installed A first blow-out duct provided along the tongrel at the substantially center of the track except for the tip region of the tongrel and having a first air outlet that blows hot air toward the tongrel; A second blowout duct provided with a second blower opening for blowing hot air to the tip region of the Tongrel, and a hot air generator for sending hot air into the first and second blowout ducts. .
[0010]
In this snow melting apparatus, since the hot air constantly circulates in the first blowing duct, the temperature distribution of the entire first blowing duct is uniform, and the temperature of the hot air blowing from here is also almost uniform. For this reason, it is possible to perform snow melting in the vicinity of Tongleil without unevenness. In addition, various members that require periodic inspection are arranged in the tip region of the Tongleil. However, the first blowout duct is not provided here, and the hot air blown out from the second blowout duct is used in this region. Ice and snow are melted. For this reason, the various members arranged in this region are exposed to the outside and can be easily inspected. As described above, according to the snow melting device of the present invention, snow melting near the Tongleil can be performed uniformly, and various members arranged in the tip region of the Tongleil can be easily inspected.
[0011]
Here, it is preferable that the 1st ventilation port is provided with the guide which guides so that a hot air may be blown down. Usually, the hot air is hotter than the outside air, so there is a risk that the hot air will rise after being blown out and will not hit the Tongler well. However, when a guide is provided as described above, the hot air from the first blowout duct Because it blows downward along the line, it will definitely hit the Tongrel. As a result, the snow melting effect is enhanced. In addition, it is preferable to set the guide to an angle at which the hot air surely hits the Tongrel. The air volume is preferably adjusted to 5 to 10 m / s.
[0012]
In the snow melting device of the present invention,
A first transverse duct integrated with the first outlet duct across the bottom of the rail in the upper area from the lower surface of the sleeper;
A second transverse duct integrated with the second outlet duct across the bottom of the rail in a region above and below the sleeper tree;
It is preferable to provide.
[0013]
In this case, the hot air generator sends hot air to the first blowing duct via the first transverse duct and sends hot air to the second blowing duct via the second transverse duct. Since the first transverse duct and the second transverse duct are installed in the region above the lower surface of the sleeper, there is no need for tamping during replacement work, and construction cost and construction time are reduced.
[0014]
Here, it is preferable that the first and second blowout ducts and the first and second transverse ducts are made of an electrically insulating material. In this case, even if a system that acquires train position information by passing a current between a pair of rails when the train passes is adopted, each duct is electrically insulating, so a pair of rails are connected via each duct. No current flows between the two. For this reason, there is no possibility of affecting the reliability of the train position information.
[0015]
In the snow melting device of the present invention, it is preferable that the hot air generator employs a rotary vaporization burner that mixes and burns fuel dispersed using centrifugal force with air. In this case, the rotary vaporization burner is a type in which atomized fuel is mixed with air using a centrifugal force and burned, so that the particle size of the fuel at the time of ignition is small. For this reason, explosion sound during ignition is suppressed, and noise during operation is reduced.
[0016]
In the snow melting device of the present invention, the hot air generator is independently provided with a first blower for supplying air necessary for combustion and a second blower for supplying air necessary for sending hot air to each duct. It is preferable. When both the air for combustion and the air for sending hot air are supplied by a single blower, it is not possible to send hot air to the duct with sufficient air volume if combustion is emphasized, and combustion is emphasized if it is important to send hot air to each duct. Incomplete and prone to wrinkles. On the other hand, when an independent blower is provided as described above, such a problem does not occur. That is, it is difficult to cause incomplete combustion, and the amount of air sent to the duct can be set freely.
[0017]
The snow melting device of the present invention preferably includes a temperature sensor that detects an outside air temperature, and a control device that controls the operation of the hot air generator according to the temperature detected by the temperature sensor. In this case, since the operation of the hot air generator can be appropriately controlled according to the outside air temperature, fuel waste can be suppressed. Here, it is preferable that the control device changes a ratio of an operation time and a downtime of the hot air generator according to a temperature detected by the temperature sensor. In controlling the operation of the hot air generator, it is conceivable to adjust the amount of fuel feed. In this case, however, it is necessary to change the amount of combustion air in order to achieve proper combustion, and the control is complicated. Become. On the other hand, when the ratio between the operation time and the downtime is changed, the control is simple because the same combustion is always performed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings. The embodiment of the present invention is not limited to the following embodiment, and any form may be adopted as long as it belongs to the technical scope of the present invention.
[0019]
[First Embodiment]
1 is a plan view of the snow melting device of the present embodiment, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a perspective view, FIG. 4 is an end view of the first and second outlet ducts, and FIG. It is a schematic block diagram of a machine. 4 (a) and 4 (b) are end views when the first and second blowout ducts are viewed from the front end region of the Tongrel.
[0020]
The snow melting device 10 of the present embodiment includes a first and second blowout ducts 11 and 12, first and second transverse ducts 13 and 14, first and second spiral ducts 15 and 16, and a Y-type branch duct 17. And a first casing 19 containing the hot air generator 18 and a second casing 21 provided with an intake port 20.
[0021]
The first blow-out duct 11 is provided along the tongue line 1 on the sleeper 6 at the approximate center of the track except for the tip region 2 of the tongue line 1. As shown in FIG. 4A, the first blowout duct 11 is provided with a slit (first air outlet) 22 on a side surface facing the Tongler 1, and the slit 22 toward the Tongrel 1. It is configured to blow hot air. A guide 23 is provided on the upper portion of the slit 22 to guide the hot air to blow downward about 45 °. The guide 23 includes a hook portion 23a that is substantially parallel to the track surface along the Tongrel 1 and a bent portion 23b that is bent obliquely downward at the tip of the hook portion 23a.
[0022]
The second blow-out duct 12 is provided on the opposite side of the first blow-out duct 11 with the front end region 2 of the tongrel 1 being sandwiched on the sleeper 6 at the approximate center of the track. As shown in FIG. 4B, the second blowing duct 12 is provided with a slit 24 on a side surface facing the basic rail 5, and is configured such that hot air is blown out from the slit 24 toward the basic rail 5. Has been. In addition, a guide 25 similar to the guide 23 is provided above the slit 24. Of the second blowing duct 12, the end facing the tip region 2 of the tongrel 1 is formed in a trumpet shape, and a tip opening 26 for blowing hot air to the tip region 2 of the tongrel 1 on its end surface ( (2nd ventilation opening) is provided.
[0023]
The first and second blow-out ducts 11 and 12 are made of vinyl chloride having heat resistance and electrical insulation, and are fixed on the sleeper 6 by a coach screw (not shown). The first and second outlet ducts 11 and 12 are formed to have a width of about 1/2 to 1/3 of the distance between the rails of the Tongrel 1 and 1. Furthermore, since the length of the 1st blowing duct 11 is provided equivalent to the length of the movable part of the Tongle rail 1, it becomes longer than the 2nd blowing duct 12 normally.
[0024]
The first transverse duct 13 is provided in a direction substantially orthogonal to the basic rail 5, and includes an exposed portion 13a having a circular cross section exposed on the ground and a buried portion 13b having a square cross section buried underground, and the buried portion 13b is shown in FIG. As shown in FIG. 2, the sleeper 6 is buried in a region above the lower surface 6a of the sleeper 6 (in the present embodiment, a region up to a depth of 15 cm) and crosses under the basic rail 5 and the tongrail 1. As shown in FIG. 3, the end portion of the embedded portion 13 b is connected to the end portion of the first outlet duct 11 via a direction changing duct 31 that changes the direction by about 90 ° with a step.
[0025]
Similar to the first transverse duct 13, the second transverse duct 14 is provided in a direction substantially orthogonal to the basic rail 5, and is composed of an exposed portion 14 a having a circular cross section and a buried portion 14 b having a rectangular cross section, and the buried portion 14 b is formed of the sleeper 6. It is buried in the region above the lower surface 6a and crosses under the rail. As shown in FIG. 3, the end portion of the embedded portion 14 b is connected to the end portion of the second outlet duct 12 via a direction changing duct 32 that changes the direction by about 90 ° with a step.
[0026]
The first and second transverse ducts 13 and 14 are made of vinyl chloride having heat resistance and electrical insulation.
The first spiral duct 15 is provided substantially parallel to the basic rail 5 and is connected to the end of the exposed portion 13a of the first transverse duct 13 via a direction changing duct 33 whose one end changes direction by about 90 °, and the other end. Is connected to the Y-shaped branch duct 17.
[0027]
Similarly to the first spiral duct 15, the second spiral duct 16 is provided substantially in parallel with the basic rail 5, and is connected to the exposed portion 14a of the second transverse duct 14 via a direction changing duct 34 whose one end changes direction by about 90 °. The other end is connected to the Y-shaped branch duct 17.
[0028]
As shown in FIG. 1, the first and second spiral ducts 15 and 16 are fixed to the ground near the track via duct fixing brackets 35 and 36.
The Y-shaped branch duct 17 includes first and second separation portions 17a and 17b that are divided into two branches, and a merge portion 17c that is a combination of both separation portions 17a and 17b. The first and second separators 17a and 17b are connected to the first and second spiral ducts 15 and 16, and incorporate air volume control valves 37 and 38 for controlling the air volume, respectively. The air volume control valves 37 and 38 determine at what ratio the air flow to the first and second blow-out ducts 11 and 12 is divided.
[0029]
As shown in FIG. 5, the hot air generator 18 built in the first casing 19 includes a rotary vaporization burner 40, a blower fan 41, and an electromagnetic pump 42. The rotary vaporization burner 40 includes a burner fan 45 (first blower) that takes combustion air from the intake port 43 and supplies the combustion air to the combustion chamber 44, a burner fan motor 46 that rotates the burner fan 45, and a burner fan motor. 46, a mountain-shaped rotating body 48 attached to the rotation shaft 47 of the 46, a fuel scattering portion 49 provided at the bottom of the rotating body 48, and a spark plug 50 provided in the vicinity of the fuel scattering portion 49. Yes. The blower fan 41 (second blower) takes in air from the intake port 20 of the second casing 21 by the rotation of the blower fan motor 51 and sends out air toward the blower port 52 of the hot air generator 18. The electromagnetic pump 42 feeds fuel from a fuel tank (not shown) to the periphery of the rotating shaft 47 that supports the rotating body 48 via the oil feeding pipe 53.
[0030]
Next, a usage example of this embodiment will be described. The snow melting device 10 is operated, for example, when there is a possibility that the outside air temperature becomes near freezing point and the Tongrel 1 is frozen and cannot be moved, or when there is a possibility that it cannot be moved due to snowfall.
In operation, first, the burner fan motor 46 of the hot air generator 18, the igniter (not shown) of the spark plug 50, and the electromagnetic pump 42 are driven. When the burner fan motor 46 rotates, the burner fan 45 sends combustion air into the combustion chamber 44. At the same time, the rotating body 48 rotates and the fuel fed from the electromagnetic pump 42 is dispersed and atomized by the centrifugal force of the rotating body 48 and enters the combustion chamber 44 from the fuel scattering portion 49. For this reason, in the combustion chamber 44, air and the atomized fuel are mixed and exist, and are ignited and burned by ignition of the spark plug 50. Since the hot air generator 18 employs the rotary vaporization burner 40 as described above, the fuel particle diameter at the time of ignition is smaller and the explosion sound at the time of ignition is smaller than that of the gun type burner.
[0031]
Subsequently, the blower fan motor 51 of the hot air generator 18 is driven to send hot air from the blower opening 52 to the Y-shaped branch duct 17. The sent hot air flows from the merged portion 17c of the Y-shaped branch duct 17 through the first separating portion 17a, the first spiral duct 15, the first transverse duct 13, and the first blowout duct 11 from the slit 22 toward the Tongrel 1. In addition to being blown out, it blows from the merging portion 17c through the second separating portion 17b, the second spiral duct 16, the second transverse duct 14, and the second blowing duct 12 from the tip opening 26 toward the tip region 2 of the Tongrel 1 Is done. The hot air is also blown out from the slit 24 of the second blowing duct 12 toward the basic rail 5.
[0032]
The rotational speed of the blower fan motor 51 is adjusted while observing the blowout amounts of the first and second blowout ducts 11 and 12, and the air volume control valves 37 and 38 provided in the Y-type branch duct 17 are appropriately adjusted. Then, the air volume of the hot air sent into the first and second blow-out ducts 11 and 12 is optimized. For example, it adjusts so that the air volume from each slit 22 and 25 may be 5-10 m / s. It should be noted that the air volume control valves 37 and 38 usually only need to be adjusted during the initial operation of the snow melting device 10.
[0033]
According to the snow melting device 10, the following effects can be obtained.
(1) Since the hot air constantly circulates in the first blowing duct 11, the temperature distribution of the entire first blowing duct 11 is substantially uniform, and the temperature of the hot air blowing from here is also substantially uniform. Can melt snow nearby. In addition, various members that require periodic inspection are arranged in the tip region 2 of the Tongrel 1, but the first blowout duct 11 is not provided here, and the tip opening 26 of the second blowout duct 12 is provided. The ice and snow in the tip region 2 is melted by the hot air blown out from the top. For this reason, the various members arrange | positioned in this front-end | tip area | region 2 are exposed outside, and can be inspected easily. Thus, according to the snow melting device of the present invention, snow melting near the Tongrel 1 can be performed uniformly, and various members arranged in the tip region 2 of the Tongrel 1 can be easily inspected.
[0034]
(2) Since the second blowout duct 12 blows hot air from the slit 24 and melts snow near the basic rail 5, the snow brought into the tip region 2 by the train can be melted in advance. It can be prevented from being covered.
(3) By providing the guides 23 and 25 in the first and second blow-out ducts 11 and 12, the hot air blown out from the slits 22 and 24 travels upwardly before hitting the Tongrel 1 or the basic rail 5 To avoid running away. For this reason, the hot air surely strikes the Tongrel 1 or the basic rail 5 to efficiently melt snow.
[0035]
(4) Since the buried portions 13b and 14b of the first and second transverse ducts 13 and 14 are buried in the region above the lower surface 6a of the sleeper 6, there is no need for tamping during replacement work, Construction time is reduced. Note that the area requiring the tamping operation is an area below the lower surface 6a of the sleeper 6 (an area indicated by a dashed line in FIG. 2).
[0036]
(5) Since the first and second blowout ducts 11 and 12 and the first and second transverse ducts 13 and 14 are made of an electrically insulating material, a current flows between the pair of basic rails 5 and 5 when the train passes. Even when a system that acquires train position information by adopting is adopted, current does not flow between the pair of basic rails 5 and 5 via the ducts 11 to 14. For this reason, there is no possibility of affecting the reliability of the train position information.
[0037]
{Circle around (6)} The hot air generator 18 employs a rotary vaporization burner 40 that mixes and atomizes fuel atomized using centrifugal force and burns it. Therefore, the particle size of the fuel at the time of ignition is small. For this reason, explosion sound during ignition is suppressed, and noise during operation is reduced.
[0038]
(7) The hot air generator 18 independently includes a burner fan 45 that supplies combustion air and a blower fan 41 that supplies air necessary to send hot air to the first and second blow-out ducts 11 and 12. Therefore, the air volume of the burner fan 45 may be adjusted when combustion is performed efficiently, and the air fan 41 may be adjusted when adjusting the air volume of hot air. For this reason, since incomplete combustion can be prevented, generation | occurrence | production of soot can be prevented and hot air can be sent with sufficient ventilation volume.
[0039]
In the above-described embodiment, the layout can be freely changed according to the length of the tongrel and the like, so the degree of freedom in design is high.
[Second Embodiment]
In the second embodiment, in addition to the configuration of the first embodiment, as shown in FIG. 6, a control device 60 that controls the hot air generator 18 is provided.
[0040]
The control device 60 is electrically connected to a rail temperature sensor 61 that detects the rail temperature of the Tongle rail 1, a snow sensor 62 that detects the presence or absence of snowfall, and an outside air temperature sensor 63 that detects the outside air temperature. Detection signals from 61 to 63 can be input. The control device 60 is electrically connected to the burner fan motor 46 of the hot air generator 18, the electromagnetic pump 42, the igniter 54 that ignites the spark plug 50, and the blower fan motor 51. Output is possible.
[0041]
Next, the operation of the control device 60 will be described. When an automatic operation switch (not shown) is turned on, the control device 60 executes processing according to the flowchart of FIG. First, in step (hereinafter abbreviated as S) 101, it is determined whether or not the rail temperature is equal to or higher than a set temperature (for example, 10 ° C.) based on the detection signal of the rail temperature sensor 61. Even if the temperature is below the freezing point, the Tonglel 1 is already warmed by hot air and has no fear of freezing or the like, so the process proceeds to S110 to stop the operation of the hot air generator 18, and then returns to S101 again.
[0042]
On the other hand, if the rail temperature is lower than the set temperature in S101, the process proceeds to S102 to determine whether or not snow is currently falling based on the detection signal of the snow sensor 62. Then, if it is snowing, it is necessary to melt the snow, so that the process from S104 is performed. If it is not snowing, the process from S103 is performed to determine the necessity of snow melting according to the outside temperature.
[0043]
In S103, it is determined whether or not the current outside air temperature t is equal to or higher than the high level TH (= hot air stop temperature) based on the detection signal of the outside air temperature sensor 63. Since there is no possibility that the rail 1 becomes inoperable due to freezing or the like, the process proceeds to S110 to stop the operation of the hot air generator 18, and then returns to S101 again.
[0044]
On the other hand, if the outside air temperature t is less than the high level TH in S103, the process proceeds to S104, and it is determined whether or not the outside air temperature t is equal to or higher than the middle level TM. If the outside air temperature t is equal to or higher than the middle level TM (that is, TM≤t≤TH), the ice and snow in the Tongrel 1 and the tip region 2 can be melted with a small amount of heat. Execute. In the low fuel control, the hot air generator 18 is driven by half of a predetermined time length to generate hot air, and the remaining 1/2 is repeatedly executed to stop the hot air generator 18. That is, intermittent operation processing with a long interval is performed. In order to drive the hot air generator 18, the burner fan motor 46, the electromagnetic pump 42, the igniter 54, and the blower fan motor 51 are turned on. To stop the hot air generator 18, all of them are turned off (fan motors 46, 51). Other than the above may be turned off).
[0045]
If the outside air temperature t is lower than the middle level TM in S104, the process proceeds to S105, and it is determined whether or not the outside air temperature t is equal to or higher than the low level TL. If the outside air temperature t is equal to or higher than the low level TL (ie, TL ≦ t <TM), it is necessary to melt the ice and snow in the tongrel 1 and the tip region 2 with a medium amount of heat. Execute control. In the middle fuel control, the hot air generator 18 is driven by 2/3 of the predetermined time length to generate hot air, and the remaining 1/3 is repeatedly executed. That is, intermittent operation processing with a short interval is performed.
[0046]
If the outside air temperature t is less than the low level TL in S105 (that is, t <TL), it is necessary to melt the ice and snow in the Tongrel 1 and the tip region 2 with a large amount of heat, so the routine proceeds to S108 and high fuel control is executed. . In the high combustion control, hot air is generated by driving the hot air generator 18 during the entire period of a predetermined time length.
[0047]
In S109, it is determined whether or not a predetermined timing for checking the outside air temperature (for example, a timing after a predetermined time length in S106 to S108), and if it is the predetermined timing, the processing after S103 is performed. Then, the outside air temperature is checked again, and combustion control is performed according to the outside air temperature.
[0048]
As described above, according to the present embodiment, in addition to the effects of the first embodiment, the operation of the hot air generator 18 can be appropriately controlled according to the outside air temperature, so that an effect of suppressing waste of fuel can be obtained. . Further, since the combustion control is performed by changing the ratio of the operation time and the downtime of the hot air generator 18 according to the outside air temperature, the control is simpler than when the fuel feed amount is adjusted according to the outside air temperature. is there.
[Brief description of the drawings]
FIG. 1 is a plan view of a snow melting device according to a first embodiment.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a perspective view of the snow melting device of the first embodiment.
FIG. 4 is an end view of first and second blowout ducts.
FIG. 5 is a schematic configuration diagram of a hot air generator.
FIG. 6 is a block diagram showing electrical connection of the control device of the second embodiment.
FIG. 7 is a flowchart showing a combustion control process of the second embodiment.
FIG. 8 is an explanatory diagram around the tong rail.
FIG. 9 is an explanatory diagram of a conventional snow melting device.
FIG. 10 is an explanatory diagram of a conventional hot air generator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Tongrel, 2 ... Tip area | region, 5 ... Basic rail, 6 ... Sleeper tree, 10 ... Snow melting apparatus, 11 ... 1st blowing duct, 12 ... 2nd blowing Duct, 13 ... 1st transverse duct, 14 ... 2nd transverse duct, 15 ... 1st spiral duct, 16 ... 2nd spiral duct, 17 ... Y-shaped branch duct, 18 ...・ Hot-air generator, 19 ... first casing, 20 ... inlet, 21 ... second casing, 22 ... slit, 23 ... guide, 24 ... slit, 25 ... Guide, 26 ... tip opening, 40 ... rotary vaporization burner, 41 ... blower fan, 42 ... electromagnetic pump, 45 ... burner fan, 46 ... burner fan motor, 50. ..Ignition plug, 51 ... Blower fan motor, 54 ... igniter, 60 ... controller, 63 ... outside air temperature sensor.

Claims (8)

A snow melting device that prevents Tongleil that distributes trains from one track to another, which becomes inoperable due to ice or snow,
A first air outlet provided with a first air outlet that is provided along the tongrel at substantially the center of the track excluding the tip region of the tongrel where at least a rolling rod is installed, and blows hot air toward the tongrel. A blowout duct,
A second blowout duct provided at a substantially center of the track and provided with a second blower opening for blowing hot air to the tip region of the Tongleil;
A snow melting device comprising a hot air generator for sending hot air to the first and second blowout ducts.   The snow melting device according to claim 1, wherein the first air outlet includes a guide for guiding hot air to blow downward.   A first transverse duct integrated with the first blowout duct across the bottom of the sleeper tree in the region above the bottom of the sleeper, and the second blowout across the bottom of the rail in the region above the bottom of the sleeper. 3. A snow melting device according to claim 1, further comprising a second transverse duct integrated with the duct, wherein the hot air generator sends hot air to the first and second blowout ducts via the first and second transverse ducts. .   4. The snow melting apparatus according to claim 3, wherein the first and second outlet ducts and the first and second transverse ducts are made of an electrically insulating material.   The snow melting device according to any one of claims 1 to 4, wherein the hot air generator employs a rotary vaporization burner that mixes and burns fuel dispersed using centrifugal force with air.   The said hot air generator was independently provided with the 1st air blower which supplies air required for combustion, and the 2nd air blower which supplies air required in order to send a hot air into each duct. The snow melting apparatus in any one of -5. A temperature sensor for detecting the outside air temperature;
The snow melting device according to claim 1, further comprising: a control device that controls operation of the hot air generator according to a temperature detected by the temperature sensor.   The snow melting device according to claim 7, wherein the control device changes a ratio between an operation time and a downtime of the hot air generator according to a temperature detected by the temperature sensor.

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