JP2002059815A - Method and device for snow melting for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a device for snow melting for rolling stock at a low cost without requiring a wide installation area. SOLUTION: In this snow melting method for the rolling stock, a molten snow disposal place 1 allowing rolling stock 3 for melting snow to be carried thereinto is divided into a plurality of districts 26a, 26b, and 26c, and the molten snow fluid supplied by a common pump 14 is ejected in order into the districts while switching for the molten snow disposal of the rolling stock. A molten snow fluid ejection part (header 20) is disposed in each divided district formed by dividing the molten snow disposal place allowing the rolling stock for snow melting to be carried thereinto into a plurality of districts. The device comprises a common pump for supplying the molten snow fluid to the molten snow fluid injection part in each divided district and a valve 24 for switching in order the ejection districts for the molten snow fluid supplied from the common pump in units of the divided districts. Then, the molten snow disposal of the rolling stock is performed while switching the ejection districts by the valve.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for melting snow on a railway vehicle, and more particularly to a railway capable of easily removing snow and ice adhering to a bogie of a railway vehicle in a railway snow melting plant. The present invention relates to a method and an apparatus for melting snow for vehicles.

[0002]

2. Description of the Related Art In general, snow and ice adhere to bogies on railway vehicles that travel in areas with a large amount of snowfall. A removal operation is performed. Such work is usually performed at a snow melting plant in a railway depot, but in order to facilitate work at the snow melting plant, rails are laid so that train wheels are located at a certain high place from the floor. We are going to introduce railway vehicles. Then, hot water is sprayed on the bogie portion of the train at such a high position to perform snow melting processing.

[0003] Conventional snow melting work on railway vehicles is generally performed manually, and an operator sprays hot water from a hose onto snow and ice attached to the railway vehicle to remove the snow melt. However, depending on the location of ice and snow adhering to the railway vehicle (for example, the lower part of the floor of the railway vehicle), it is necessary to perform the snow melting work in a poor working posture. Also, since the range in which snow can be melted at one time with the hose is limited, it takes a long time to complete the snow melting work, and the burden on the operator is large.

In order to reduce such a human work load, for example, a snow melting device for a railway vehicle as shown in FIG. 7 is used. FIG. 7 is an explanatory diagram of a piping system of a conventional snow melting device for a railway vehicle. In this snow melting apparatus, the suction port of the pump 114 is connected to the hot water tank 112, and the pipe connected to the discharge port is branched into two, and the main pipe 11
6, 116 and extend along rails within the snowmelt treatment plant. Further, a plurality of branch pipes 11 are provided from each main pipe.
8 is branched, and a header 120 is installed at the tip of each branch pipe along the railway vehicle to be snow-melted. Header 120
An injection nozzle (not shown) is formed on the peripheral surface of
Hot water is sprayed toward railway vehicles.

[0005]

In the above conventional snow melting apparatus, since hot water is injected from all the headers simultaneously to perform the snow melting process, a large amount of hot water is required per unit time, and a large flow rate of the hot water can be secured. It is necessary to install a high-output pump and a large-diameter main pipe that can supply a large amount of hot water to each header. Therefore, there is a problem that a large introduction cost is required for the pump and the main piping, and a large operation cost is required for the pump. In addition, since a large installation place is required for the pump and the main pipe, there is a case where the installation place cannot be secured and the snow melting apparatus according to the related art cannot be introduced. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a snow melting apparatus and a method for a railway vehicle which are inexpensive and do not require a large installation space.

[0006] By the way, constructing a huge snowmelt processing plant that can perform snowmelt processing on a plurality of vehicles while the railway vehicle is stopped naturally requires a huge amount of cost. On the other hand, if the snowmelt processing area is too small, the railcar must be moved frequently, and the wireless communication between the snowmelt worker and the vehicle driver increases, and the efficiency of the snowmelt work deteriorates. Therefore, an object of the present invention is to provide a snow melting method for a railway vehicle that balances the construction cost of a snow melting work place and the snow melting work efficiency.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, a snow melting method for a railway vehicle according to the present invention comprises dividing a snow melting treatment plant into which a railway vehicle to be melted is introduced into a plurality of areas,
The configuration is such that the snow melting fluid supplied by the common pump is sequentially switched and injected for each of the divided sections to perform the snow melting process on the railway vehicle. Thus, the amount of snowmelt fluid per unit time supplied by the pump and the main pipe can be reduced. Therefore, a low output pump can be used,
The main pipe can also have a small diameter. Therefore, the installation cost and operation cost of the snow melting device can be kept low, and a large installation space is not required. Note that hot water can be preferably used as the snow melting fluid, but is not particularly limited to this, and any fluid that can melt snow and ice, such as steam or water, may be used. In addition, as means for sequentially switching and injecting the snow melting fluid for each divided area, any means can be adopted as long as it can individually start and stop the injection of the snow melting fluid in each divided area, and it is not necessarily required to use a valve. Not limited.

[0008] Further, a snowmelt treatment plant into which a railcar to be subjected to snowmelt is carried is set to have a size corresponding to one of the railcars, and the snowmelt treatment plant is divided into a plurality of sections and supplied by a common pump. The snow melting fluid is sequentially switched and injected for each of the divided areas to perform a snow melting process for one of the railway vehicles, and the above operation is repeated while sequentially moving the railway vehicles one by one to perform a snow melting process for the entire railway vehicle. Configuration. This makes it possible to balance the construction cost of the snowmelt treatment plant with the snowmelt work efficiency.

On the other hand, a snow melting apparatus for a railway vehicle according to the present invention is arranged such that a snow melting fluid spraying section is arranged in each divided area obtained by dividing a snow melting processing site into which a railway vehicle to be melted is carried into a plurality of areas. A common pump for supplying the snow-melting fluid to the snow-melting fluid ejecting section of each divided area, and a valve for sequentially switching the area for ejecting the snow-melting fluid supplied from the common pump in units of the divided areas; Thus, the snow melting process of the railway vehicle is performed while switching the injection area. Thereby, similarly to the above, the amount of the snow melting fluid per unit time supplied by the pump and the main pipe can be reduced. Therefore, a low-output pump can be used, and the main pipe can be made small in diameter. Therefore, the installation cost and operation cost of the snow melting device can be kept low, and a large installation space is not required.
The snow-melting fluid ejecting section is preferably constituted by a cylindrical header and an ejection nozzle formed on the peripheral surface thereof, but is not limited to this. The snow-melting fluid can be ejected to reach the railcar to be snow-melted. Anything should do. The valve also has
It is preferable to use an electromagnetic proportional flow control valve, but the present invention is not limited thereto.

[0010]

Embodiments of the present invention will be described in detail with reference to the drawings. Note that what is described below is merely an embodiment of the present invention, and the present invention is not limited to this.

As a first embodiment, a snow-melting fluid ejecting section is arranged in each of the divided sections obtained by dividing a snow-melting treatment plant into which a railway vehicle to be melted is carried into a plurality of sections, and the snow-melting fluid ejecting section is supplied with a snow-melting fluid. A description will be given below of a railway vehicle snow melting apparatus having a common pump to be supplied and a valve for sequentially switching a spray area of the snow melting fluid. FIG. 1 is a perspective view of a snow melting device for a railway vehicle according to the first embodiment.

The snow melting device for a railway vehicle according to the present embodiment comprises:
It is installed in the snowmelt processing plant 1 where the railway vehicle to be melted is carried in. It is preferable that the snowmelt processing area be set to a size that allows snowmelt processing for one railcar. In that case, by using the snow melting device for a railway vehicle according to the present embodiment, snow melting processing for one vehicle can be performed. The rail 2 is drawn into the snow melting plant from the outside, and is installed at a certain height (for example, about 1 m) with respect to the floor of the snow melting plant. Thereby, when the railway vehicle 3 is carried along the rail 2 into the snow melting plant 1, the railway vehicle is held at a fixed height position with respect to the floor surface, and the snow melting process is performed on the bogie portion and the like on the lower surface of the vehicle. It will be easier. A control room (not shown) for operating a railway vehicle snow melting apparatus is provided in one corner of the snow melting plant.

[0013] The snowmelt processing plant into which the railway vehicle to be melted as described above is carried in is divided into a plurality of sections in advance. This area is a unit of a snowmelt processing operation described later. Since the snow melting process is mainly performed to remove snow and ice attached to the bogie of the railway vehicle, it is preferable to set an area for each location where the bogie of the loaded railway vehicle is located. In the example of FIG. 1, a total of three divided areas 26a and 26
Although b and 26c are set, they are not limited to these. For example, each area 26a, 26b, 26c is divided into two,
A total of six divided areas may be used. It is not necessary that all areas have the same area.

[0014] In the snowmelt treatment plant, each device constituting the snowmelting device for railway vehicles is installed. FIG. 2 shows an explanatory diagram of a piping system of the railway vehicle snow melting apparatus according to the first embodiment. A snowmelt fluid tank 12 for storing snowmelt fluid used for snowmelt treatment is installed at one corner of a snowmelt treatment plant. Although warm water can be preferably used as the snow melting fluid, it is not particularly limited to this, and any fluid that can melt snow and ice, such as steam or water, may be used. In order to keep the fluid in the snow melting fluid tank at a high temperature, a heating means (not shown) is installed in the snow melting fluid tank. The suction port of the pump 14 is connected to the snow melting fluid tank. On the other hand, the discharge port of the pump is connected to a pipe, which is branched into two to form main pipes 16 and 16 for supplying a snow melting fluid. In the present embodiment, as described later, the snow-melting fluid is switched and injected for each divided area. Therefore, a pump and a main pipe that can supply the snow-melting fluid to be injected in one area may be provided. Each main pipe is preferably arranged parallel to the outside of the pair of rails 2, but is not limited thereto, and may be arranged in any manner as long as the snow melting fluid can be supplied to each section. The length of each main pipe along the rail is preferably at least as long as one railcar, but is not limited thereto, and may be shorter or longer. The pump and main pipe installed as described above serve as a common pump and main pipe for each section to receive the supply of the snow melting fluid. The ends of the main pipes are connected to each other.

A branch pipe 18 is branched from each of the main pipes 16, and a snow-melting fluid ejecting section to be described later is formed at the tip thereof. In FIG. 2, each main pipe in each area is 2
Although branch pipes are branched, the number of branch pipes is not limited to this. The branch pipe may be branched from the main pipe at any location.
b, 26c. The shape of the branch pipe may be any shape as long as the snow melting fluid jetting part can be formed in each divided area. However, in order to inject the snow-melting fluid vigorously at the snow-melting fluid ejecting section, it is preferable that the shape is such that the pipe loss can be reduced as much as possible. FIG. 3A is a perspective view of a shape example of the branch pipe. The branch pipe 18 branches upward from the main pipe 16 to form a vertical portion 18a. Next, the branch pipe is bent inward at a height position corresponding to the vicinity of the upper end of the bogie unit 4 of the railway vehicle (see FIG. 3 (2)) to form a horizontal portion 18b. However, when the distance between the main pipe 16 and the rail 2 is short, it is not necessary to form the horizontal portion 18b. Next, the branch pipe is bent in the direction parallel to the rail 2 near the body of the railway vehicle to form a parallel portion 18c. The shape of the branch pipe is not limited to the above.

At the tip of the branch pipe branched from the main pipe, a snow-melting fluid injection section is formed along the railway vehicle. The number of the snow melting fluid jetting units arranged in each divided area may be one or plural. It is preferable that the snow-melting fluid jetting section is constituted by the header and the jetting nozzle, but the present invention is not limited thereto. For example, the jetting nozzle may be formed directly on the branch pipe. In the following, a description will be given of an example of a snow-melting fluid ejecting unit constituted by a header and an ejection nozzle. FIG. 3A shows a perspective view of the header. At the tip of the branch pipe 18, a header 20 is installed in parallel with the rail 2. A plurality of injection nozzles 22 for injecting the snow melting fluid are formed at positions on the peripheral surface of the header 20 that are to be opposed to the railway vehicle. A plurality of small-diameter injection ports are provided at the tip of each injection nozzle so that the snow-melting fluid can be jetted vigorously in a linear manner and reach the railcar. In addition, each injection nozzle is arranged at a constant interval in the axial direction of the header 20 so that the snow melting fluid can be injected at a constant density. Further, as shown in FIG. 3A, it is preferable to dispose an injection nozzle 22b slightly lower than this between two injection nozzles 22a in a substantially horizontal direction, but it is not limited to this. When the number of the injection nozzles 22a and 22b is formed at a ratio of 2: 1 in this manner, more snow-melting fluid is injected to the upper side of the bogie unit 4, and the upper-side snow melting is promoted. Then, the snow-melting fluid that has melted the snow on the upper side of the bogie unit 4 falls to the lower side of the bogie unit 4 and also melts the snow in that portion. Therefore, the snow melting process of the bogie unit can be efficiently performed.

The branch pipe 18 is provided with a valve 24 for sequentially switching the spray area of the snow melting fluid. The installation location of the valve may be any location that can control the supply of the snow melting fluid from the main pipe 16 to the header 20 which is the snow melting fluid ejection unit. FIG.
In (1), the branch pipe is installed in the parallel portion 18c, but is not limited thereto, and may be installed in the vertical portion 18a or the horizontal portion 18b. When a plurality of headers are formed in each area, the supply of the snow melting fluid to the plurality of headers is
Control may be performed by the same valve. On the other hand, as for the type of the valve 24, it is preferable to use a shut-off valve capable of opening and closing the flow path at least and to be capable of remote control. In particular,
It is preferable to use an electromagnetic proportional flow control valve capable of controlling the flow rate using an electromagnet, in which the amount of current supplied to the electromagnet can be remotely controlled by a remote controller. However, the present invention is not limited to this. For example, a conventional solenoid valve that functions only as a shutoff valve,
A switch that can be turned off remotely by a remote controller may be used. In addition to the solenoid valve, for example, a manual throttle valve may be modified to be driven by a motor or the like, and a current supplied to the motor or the like may be remotely controlled by a remote controller. The control of the valve by the remote controller may be wireless or wired. In addition, it is preferable that the remote controllers of the respective valves are centrally installed in a control room provided in a corner of the snow melting plant.

The snow melting device for a railway vehicle configured as described above is used as follows. As a premise, a railway vehicle to be subjected to snow melting is brought into a snow melting plant. First, a snow melting fluid is injected in the first area to perform a snow melting operation.
In the example of FIG. 2, first, the snow melting work is performed in the area 26a. For this purpose, first, it is preferable to investigate the temperature of the snow-melting fluid in the snow-melting fluid tank with a temperature monitor, and to operate the heating means as necessary to adjust the temperature of the snow-melting fluid to a temperature suitable for the snow-melting process. . Next, the valve 24 for controlling the supply of the snow melting fluid to the header disposed in the section 26a is opened, while the valve for controlling the supply of the snow melting fluid to the header disposed in the other sections is closed. Next, the pump is operated. All of these are preferably performed remotely from the control room. Therefore, not only the remote controller of the valve but also the operation switch of the temperature monitor and the heating means of the snow melting fluid tank and the operation switch of the pump are preferably installed in the control room. By the above operation, the snow melting fluid is jetted from the jet nozzle of the header arranged in the area 26a, and the snow and ice attached to the railway vehicle in the area 26a is subjected to the snow melting process. In the case where a plurality of headers are formed in one area as shown in FIG. 2 and valves are provided for each of the headers, headers for which snow and ice removal in charge are already completed as in a third embodiment described later. It is preferred that the valves be individually closed to stop the supply of the snow melting fluid. As a result, waste of the snow-melting fluid can be eliminated, and the operating cost of the snow-melting device can be kept low.

Next, in the second and subsequent sections, the snow-melting fluid is sequentially switched and injected to perform a snow-melting operation. In the example of FIG.
At 6b and 26c, snow melting work is performed sequentially. For that purpose, first, while opening the valve 24 arranged in the area 26b, an operation of closing the valve arranged in the other area is performed.
The pump is operated to perform the snow melting process in the area 26b.
Next, while opening the valve 24 located in the area 26c,
The operation of closing the valves arranged in other areas is performed, and the pump is operated to perform the snow melting process in the area 26c. Switching of these valves is performed by remote control from the control room in the same manner as described above.

When the snow melting process in each area is completed by the above series of operations, the portion of the vehicle that has undergone the snow melting process is carried out of the snow melting plant, and at the same time, the unprocessed portion of the vehicle is carried into the snow melting plant. The snow melting process is sequentially performed on the unprocessed portion in each area. When the snowmelt processing area is set to a size that allows snowmelt processing for one vehicle, the above-mentioned carry-out and carry-in are performed for each vehicle. The specific procedure is
First, the snow melting worker visually confirms that the snow melting process has been completed in each area. Next, the snow melting worker wirelessly informs the vehicle driver waiting in the driver's seat of the railway vehicle of the fact. Upon receiving this, the vehicle driver moves the vehicle by one vehicle. Further, if necessary, fine adjustment of the movement amount is performed wirelessly. By repeating such operations, the snow melting process of the entire railway vehicle is finally completed.

By using the snow melting device for a railway vehicle according to the present embodiment as described above, it is not necessary to install a high-output pump or a large-diameter main pipe, so that the introduction cost and the operating cost can be reduced. Can be. In the prior art,
Since the snow melting process was performed simultaneously for each part of the vehicle, it was necessary to install a high-output pump capable of securing a large flow rate of snow melting fluid, and a large-diameter main pipe capable of supplying a large amount of snow melting fluid to each header. I needed to. In this regard, in the present embodiment, a plurality of zones are set on the railway vehicle, and the snow melting fluid is sequentially injected into each zone to perform the snow melting work. The flow rate decreases. Therefore, a low-output pump can be used, and the main pipe can be made small in diameter, so that the introduction cost of the apparatus can be reduced. However, in contrast to the conventional technique of simultaneously performing the snow melting processing of each part of the vehicle, in the present embodiment, since the snow melting processing is sequentially performed for each area, the working time is long and the operation time of the pump is also long. However, since a low-output pump with low power consumption is used, the total operation cost can be suppressed lower than that of the conventional technology.

Further, since there is no need to install a large pump or a large-diameter main pipe, a large installation place is not required, and the apparatus can be installed even in a relatively narrow snow melting plant. The snow melting device for railway vehicles according to the prior art requires a large installation space, and there is a snow melting plant that cannot be installed because the installation space cannot be secured. In this respect, the railway vehicle snow melting processing apparatus according to the present embodiment can be installed in many snow melting processing sites.

Further, it is possible to balance the construction cost of the snow melting plant with the snow melting work efficiency. To set up a huge snowmelt treatment plant that can perform snowmelt processing on a plurality of vehicles while the railway vehicle is stopped, a huge amount of cost is naturally required. On the other hand, if the snowmelt processing area is too small, the railcar must be moved frequently, and the wireless communication between the snowmelt worker and the vehicle driver increases, and the efficiency of the snowmelt work deteriorates. In this regard, in the present embodiment, the snowmelt treatment plant is set to have the size of one railcar, so that the construction cost of the snowmelt treatment plant does not become huge. In addition, since the snow melting process for one train is repeated while moving the train one by one, the snow melting process for the entire train is repeated, so the frequent wireless communication between the snow melting worker and the vehicle driver reduces the snow melting work efficiency. I will not let you. Therefore, it is possible to balance the construction cost of the snow melting plant with the snow melting work efficiency.

In addition, since the operation of the snow melting device for railway vehicles can be performed in the control room, the physical burden on the operator can be reduced. Snowmelt processing is performed during the severe winter,
Although the work is carried out in a snowmelt treatment plant, the loading and unloading of railroad vehicles is greatly open to the outside. This imposes a burden on the target. In this respect, in the present embodiment, the equipment necessary for operating the snow melting device, such as a valve remote controller, is centrally installed in a control room provided at a corner of the snow melting processing plant, and the operation by remote operation is enabled. Person's movement amount can be reduced. In addition, if the control room is heated, the physical burden on the operator can be further reduced.

As a second embodiment, a snowmelt fluid injection section is divided into a plurality of sections into which a railroad vehicle to be subjected to snowmelt is carried, and a snowmelt fluid injection section is arranged in a plurality of upper and lower sections. A snow melting device for a railway vehicle having a common pump for supplying the snow melting fluid to the vehicle and a valve for sequentially switching the injection zone of the snow melting fluid will be described below. FIG. 4 shows the second
The explanatory view of the piping system of the snow melting device for railway vehicles concerning an embodiment is shown. The configurations of the snowmelt processing plant, the snowmelt fluid tank, the pump, and the main piping are the same as in the first embodiment, and a description thereof will be omitted.

In the second embodiment, as in the first embodiment, a plurality of branch pipes 18 are branched off from the main pipes 16 and 16, and a header 20 as a snow-melting fluid injection unit is installed at the tip thereof. In the second embodiment, in addition to this, a branch pipe 19 is further branched from the branch pipe 18, and a header 30 as a snow-melting fluid injection unit is installed at the tip thereof, and is disposed below the header 20. FIG. 6A shows a front view of the branch pipe and the header. In FIG. 4 and FIG. 6A, the branch pipe 18 branches the branch pipe 19 at a horizontal portion 18b, but is not limited thereto, and may branch at a vertical portion 18a or a parallel portion 18c. The header 30 may be disposed directly below the header 20, or may be disposed closer to the rail 2 than the header 20 as shown in FIG. On the peripheral surface of the header 30, a plurality of injection nozzles 32 are formed at equal intervals in the axial direction. Injection nozzle 32
Is preferably formed obliquely upward as shown in FIG. In addition, in the vicinity of the header 30, it is preferable that the gantry 2a supporting the rail 2 is partially removed so that the snow-melting fluid injected from the injection nozzle 32 can reach the carriage unit 4. On the other hand, a valve 24 is provided on the branch pipe 18 on the upstream side of the branch point with the branch pipe 19.

The method of using the snow melting device for a railway vehicle configured as described above is the same as that of the first embodiment. This makes it possible to reliably remove snow and ice adhering to the back of the railcar bogie. In the prior art, since only the snow melting process is performed by injecting the snow melting fluid from the side of the bogie, even if the snow and ice attached to the side of the bogie can be removed, the snow and ice attached to the back can be removed. Could not be removed. In this regard, in the snow melting device for a railway vehicle according to the present embodiment, the headers are installed in a plurality of upper and lower stages including the header located on the side of the bogie unit as in the conventional art. By removing snow and ice adhering to the vehicle bogie part, the snow melt fluid can be made to reach the back of the bogie part by injecting the snow-melting fluid obliquely upward from a header arranged particularly below. Therefore, snow and ice adhering to the back of the bogie section can be reliably removed.

As a third embodiment, a snow melting fluid injection section is divided into a plurality of sections into which a railway vehicle to be subjected to snow melting is introduced, and a snow melting fluid injection section is arranged in a plurality of upper and lower stages. Equipped with a common pump to supply snow melting fluid to
Regarding the snow melting device for railway vehicles, which installed a valve for sequentially switching the snow melting fluid injection area for each snow melting fluid injection unit,
This will be described below. FIG. 5 is an explanatory diagram of a piping system of a snow melting device for a railway vehicle according to the third embodiment. The configurations of the snowmelt processing plant, the snowmelt fluid tank, the pump, and the main piping are the same as in the first embodiment, and a description thereof will be omitted.

In the third embodiment, as in the first embodiment, a plurality of branch pipes 18 are branched off from each of the main pipes 16 and 16, and a header 20 as a snow-melting fluid jetting part is installed at the tip thereof. In the third embodiment, in addition to this, the main pipe 16,
A branch pipe 19 is branched from the pipe 16, and a header 30 as a snow-melting fluid injection unit is installed at the tip of the branch pipe 19.
To be placed below. FIG. 6 (2) shows a front view of the branch pipe and the header. In FIG. 5 and FIG.
Is branched directly from the main pipe 16, but is not limited to this.
The branch pipe 18 may be branched. The configurations of the header 30 and the injection nozzle 32 are the same as in the second embodiment. On the other hand, the branch pipe 18 is provided with a valve 24, and the branch pipe 19 is provided with a valve 25.

The method of using the snow melting device for a railway vehicle configured as described above is the same as that of the first embodiment. Thereby, the operating cost of the snow melting device for railway vehicles can be reduced. In the second embodiment, headers installed in a plurality of upper and lower stages are simultaneously controlled by one valve. So, for example, if the snow and ice attached to the back of the bogie of the railway vehicle has not been removed yet, but the snow and ice attached to the side has already been removed, in order to continue the injection of the snow melting fluid from the lower header If the valve is kept open, the snow melting fluid will continue to be injected from the upper header. Therefore, the snow melting fluid is wasted, and the operating cost is raised. In this regard, the snow melting device for a railway vehicle according to the present embodiment is provided with a valve corresponding to each header, so that each header can be controlled separately. Therefore, in the above example, even when the injection of the snow melting fluid is continued from the lower header, the upper header can be closed to stop the injection of the snow melting fluid. Therefore, the snow melting fluid is not wasted, and the operating cost can be reduced.

[0031]

According to the present invention, a snowmelt processing plant into which a railway vehicle to be subjected to snowmelt is carried is divided into a plurality of sections, and a snowmelt fluid supplied by a common pump is sequentially switched and injected for each of the divided sections. Was used as a snow melting method for railway vehicles. Further, a snowmelt fluid injection unit is arranged in each of the divided areas obtained by dividing the snowmelt processing plant into which the railroad vehicle to be subjected to snowmelt is introduced into a plurality of areas, and the snowmelt fluid is supplied to the snowmelt fluid injection units in each of the divided areas. A common pump, and a valve for sequentially switching the injection area of the snow-melting fluid supplied from the common pump in units of the divided areas. The valve switches the injection area and performs the snow-melting process of the railway vehicle. And a snow melting device for railway vehicles. This allows
The snow melting fluid per unit time used by the snow melting device can be reduced. Therefore, a low-output pump can be used, and the main pipe can be made small in diameter. Therefore, the installation cost and operation cost of the snow melting device can be kept low, and a large installation space is not required.

[Brief description of the drawings]

FIG. 1 is a perspective view of a snow melting device for a railway vehicle according to a first embodiment.

FIG. 2 is an explanatory diagram of a piping system of the snow melting device for a railway vehicle according to the first embodiment.

FIG. 3 is an explanatory view of a branch pipe and a header according to the first embodiment, (1) is a perspective view, and (2) is a front view.

FIG. 4 is an explanatory diagram of a piping system of a snow melting device for a railway vehicle according to a second embodiment.

FIG. 5 is an explanatory diagram of a piping system of a snow melting device for a railway vehicle according to a third embodiment.

FIG. 6 is a front view of a branch pipe and a header, (1) is a front view of a branch pipe and a header according to a second embodiment, and (2) is a front view of a branch pipe and a header according to the third embodiment. FIG.

FIG. 7 is an explanatory diagram of a piping system of a snow melting device for a railway vehicle according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Snow melting plant, 2 ... Rail, 3 ... Railway car, 4 ... Bogie part, 5 ... Wheels, 6 ... Car body, 12 ... Snow melting fluid tank, 14 ……… Pump, 16…
… Main pipe, 18… Branch pipe, 19… Branch pipe, 2
0 ... header, 22 ... injection nozzle, 24 ... valve, 25 ... valve, 26 ... area, 30 ...
Header 32, Nozzle 112, Hot water tank 11,
4 ... pump, 116 ... main pipe, 118 ... branch pipe, 120 ... header

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ikuo Sugiyama 1-1-1-14 Uchikanda, Chiyoda-ku, Tokyo F-term (reference) 3D026 AA05 AA12 AA22 AA27

Claims (3)

[Claims] 1. A snowmelt treatment plant into which a railroad vehicle to be melted is introduced is divided into a plurality of sections, and a snowmelt fluid supplied by a common pump is sequentially switched and jetted for each of the divided sections, so that the railroad vehicle is divided into a plurality of sections. A snow melting method for railway vehicles, characterized by performing a snow melting process. 2. A snowmelt treatment plant into which a railcar to be melted is introduced is set to have a size corresponding to one railcar, and the snowmelt treatment plant is divided into a plurality of sections and supplied by a common pump. The snow melting fluid is sequentially switched and injected for each of the divided areas to perform a snow melting process for one of the railway vehicles, and the above operation is repeated while sequentially moving the railway vehicles one by one to perform a snow melting process for the entire railway vehicle. A snow melting method for a railway vehicle, which is performed. 3. A snow-melting fluid ejecting unit is disposed in each of the divided sections obtained by dividing a snow-melting processing plant into which a railway vehicle to be subjected to snow-melting is carried into a plurality of sections, and the snow-melting fluid ejecting sections in each of the divided sections are snow-melted. A common pump that supplies fluid, and a valve that sequentially switches an injection area of the snow-melting fluid supplied from the common pump in units of each of the divided areas, and switches the injection area by using the valve. A snow melting device for a railway vehicle, which performs a snow melting process.