JP2002021004A - Snowmelt brought in - Google Patents

Abstract

(57) [Summary] [Problem] To provide a carry-in snow melting machine with a small installation space and high thermal efficiency. A burner unit (2) for generating hot air and a duct (3) heated by hot air from the burner unit (2) are provided between a pair of rails (R). A burner 6 for generating hot air is provided in the burner section 2 toward the duct 3, and an air guide tube 7 for guiding the hot air generated by the burner 6 is provided in the duct 3 along the longitudinal direction of the duct 3 from the tip of the burner 6. Provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow-melting machine which removes snow accumulated between rails and snow carried between rails (carry-in snow).

[0002]

2. Description of the Related Art In a railway, when snow piles up between rails, the snow is picked up by a train and brought into a rail point. If this snow gets caught between the basic rail and the tongue rail, the operation of the point switching device is hindered, and there is a possibility that reliable point switching cannot be performed. For this reason, conventional snowmelters have been used to melt snow between rails to create a snow-free area. ing.

[0003]

In a conventional snow-melting machine brought in, for example, a hot air is generated by a burner or the like provided outside a rail, and the hot air is blown directly to the snow through a duct provided between the rails to melt the snow. However, the installation space for the burner was required outside the rail, and the distance between the burner and the outlet of the duct was large, so the hot air generated by the burner was easy to cool down and the thermal efficiency was poor. Also, since the snow was melted by directly applying hot air to the snow, most of the heat of the hot air escaped into the air,
Thermal efficiency was poor.

[0004] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a carry-in snow melting machine having a small installation space and high heat efficiency.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a carry-in snow melting machine according to the present invention has a burner provided between rails and a burner provided between the rails along the rails. And a duct heated by the hot air emitted from the burner.

[0006] In the snow-melting machine carried in this way, since the burners are arranged between the rails, the installation space outside the rails can be reduced. Further, not only the hot air generated by the burner is directly applied to the snow but also the snow is melted by the heat of the duct heated by the hot air, so that the thermal efficiency can be improved. here,
As the burner used in the present invention, it is preferable to use a gas-type burner that can be installed between rails and that is easy to remotely control or automatically control the ignition and extinguishing of the burner by a control device. Further, for example, the duct may be provided with a plurality of exhaust ports for exhausting hot air generated by the burner to the outside. Thus, the snow is melted by the hot air exhausted from the duct, so that the residual heat of the hot air that has contributed to the heating of the duct can be effectively used. Further, the duct may have a weighted snow melting portion in which the exhaust port is provided with a higher density than other places. In this case, since the hot air is more intensively blown out in the focused snow melting portion than in the other portions, the snow melting can be focused on this portion. Further, the exhaust port may be provided so as to increase the density as the distance from the burner increases. In this case, the density of the exhaust ports increases as the duct moves from the side closer to the burner, that is, the side where the temperature of the hot air is relatively high, to the side away from the burner, that is, the side where the temperature of the hot air is relatively low. Therefore, on the side where the temperature of the hot air is lower, the amount of the hot air increases accordingly, and snow melting can be performed uniformly as a whole.

According to a second aspect of the present invention, the duct is formed by connecting a plurality of detachable units to each other. In the snow-melting machine carried in this way, by connecting the required number of units, the length of the duct can be easily adjusted according to the range in which the snow-free part is to be formed. Further, since the duct can be divided into a plurality of parts, transportation is easy and construction is also easy.

According to a third aspect of the present invention, an air guide tube for guiding hot air generated by the burner is provided in the duct along the longitudinal direction of the duct, and a side surface of the air guide tube is provided in the duct. A plurality of discharge ports for discharging hot air into the duct are provided along the longitudinal direction. In such a snow-melting machine, the hot air generated by the burner is directly guided along the duct to the other end of the duct by the air guide tube, and the discharge port of the air guide tube extends along the longitudinal direction of the air guide tube. Since a plurality of ducts are provided, hot air can be distributed more uniformly in the duct, and the temperature of the duct can be made substantially uniform as a whole.

According to a fourth aspect of the present invention, a plurality of exhaust ports are provided on a side surface of the duct along a longitudinal direction for exhausting hot air sent into the duct to the outside, and the duct is provided on a side surface of the duct. Is provided with a snow-melting plate that protrudes laterally from a position above the exhaust port and is heated by exhaust from the exhaust port. In the snow-melting machine carried in this way, in the snow-melting plate, the hot air sent into the duct from the burner is exhausted to the side of the duct from the exhaust port. The snow melting plate is heated by the heat conduction from the exhaust and the duct to melt the snow on the snow melting plate, and the exhaust is guided to the side of the duct by the snow melting plate, so that snow melting can be performed over a wider range.

According to a fifth aspect of the present invention, there is provided a snow melting machine having a control device for controlling the operation of the burner, and a remote control panel for remotely controlling the control device. In the snow-melting machine having such a configuration, the control device for controlling the operation of the burner can be operated from a remote place by the remote control panel, so that the worker does not need to go to the installation site, and The burden is reduced. Although the burner of the present invention has a burner provided between the rails, remote control of the burner is possible, which eliminates the need for an operator to enter the track,
Complicated work such as safety confirmation can be eliminated.

According to a sixth aspect of the present invention, there is provided at least two sets of the burner and the duct, and the ducts of each set are arranged in parallel with each other. In the snow-melting machine having such a configuration, even if one or some of the burners cannot be operated due to malfunction or maintenance, for example, the other burners are operated to operate in parallel. Snow melting can be carried out by at least one of the ducts arranged in the above, and the safety factor can be improved.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] A first embodiment of a carry-in snow melting machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a plan view schematically showing an example of installation of a snow snowmelt brought in according to the first embodiment, and FIG. 2 is a diagram showing a structure of the snow snowmelter carried in the first embodiment. 2 (a) is a partially broken plan view, FIG.
(B) is a partially cutaway side view, FIG. 3 is a view for explaining the structure of a burner portion of a snow-melting device brought in, FIG. 3 (a) is a plan sectional view, and FIG. 3 (b) is a side view. 3 (c) is a front view, FIG. 4 is a piping diagram of a snow-melting device brought in according to the first embodiment, and FIG. 5 is a plan view showing a schematic shape of a duct.

The carry-in snow melting machine 1 is installed, for example, in front of a rail point, and is shown in FIGS.
As shown in (a), a burner portion 2 provided between a pair of rails R to generate hot air, and a rail R between the rails R.
And a duct 3 that is heated when hot air is sent in from the burner unit 2. A burner 6 for generating hot air is provided in the burner section 2 toward the duct 3 (see FIG. 2A). In the duct 3, an air guide tube 7 for guiding the hot air generated by the burner 6 is provided. 6 is provided along the longitudinal direction of the duct 3 from the tip end. The carry-in snow melting machine 1 has a plurality of sets of the burner part 2 having the burner 6 and the duct 3, and the ducts 3 of each set are provided in parallel with each other. In the present embodiment, the two burners 2 are connected to each other by the burners 6.
Are arranged at a predetermined distance from each other in a state where they face each other, and duct portions 3 are respectively provided from the burner portions 2 so as to extend toward each other, and are arranged in parallel between the rails R.

Here, the burner portion 2 and the duct 3 are limited in the amount of protrusion from the roadbed F in order to prevent interference with a train (train) passing on the rail R. The height of the member is accommodated in the accommodation hole, and the amount of protrusion from the roadbed F is kept within a predetermined range. In the present embodiment, as shown in FIG. 2B, the accommodation holes P are provided between the rails R and the sleepers M supporting the rails R, and the burner portions 2 are provided in the accommodation holes P. Of the rail R
So that it does not exceed the upper surface.

The duct 3 is formed by connecting a plurality of units 11 that can be detached from each other, and is held in a state where a space is left between the duct 3 and the upper surface of the roadbed F by a fixture. The duct 3 itself is heated by sending hot air from the burner unit 2. The unit 11 is a cylindrical member having a substantially square cross section and a size that is easy to carry and connect. The length is, for example, about 1 m. It can be placed in the area. In the present embodiment, the width of the duct 3 at a portion where hot air substantially passes other than the connection between the ducts 3 is set to 15 cm.

These units 11 are detachably connected to each other by means commonly used, and are connected to the burner 2 in the same manner. In the present embodiment, a flange 11 a for connecting to each other unit 11 is formed at the open end of the unit 11. These units 11 are connected by, for example, bolting the flanges 11a together in a state where the flanges 11a are in contact with each other. In the present embodiment, the height of the unit 11 is set so that the highest portion does not exceed the upper surface of the rail R when installed on the roadbed F.

The unit 11 connected to the burner unit 2 has a flange 11a on the burner unit 2 side connected to a flange 16a provided on a housing 16 (described later) of the burner unit 2. Burner part 2
And the duct 3 of the unit 11
The unit 11 constituting the front end (the end opposite to the side connected to the burner unit 2) has a lid 11c attached to the front flange 11a, and the open end is closed. Here, the connection portion between the units 11, the connection portion between the unit 11 and the burner portion 2, and the connection portion between the unit 11 and the lid 11 c are sealed by using a gasket, packing, or the like, so that they are sent into the duct 3. Leakage of the hot air from the connection portion can be prevented, and the hot air can be used efficiently.

The unit 11 has a plurality of exhaust ports 12 on its side and upper and lower surfaces for exhausting hot air sent into the duct 3 to the outside of the duct 3. The exhaust port 12 is for blowing hot air sent into the duct 3 against the snow around the duct to melt it, and thereby effectively utilizes the residual heat of the hot air that has contributed to the heating of the duct 3. In the present embodiment, the exhaust port 12 is provided in the duct 3 so as to increase in density as the distance from the burner 6 increases, as schematically shown in FIG. Here, the number and arrangement of the exhaust ports 12 shown in FIG. 5 are merely examples, and may be increased or decreased or the positions may be changed as necessary. As described above, the density at which the exhaust ports 12 are provided increases from the side closer to the burner 6, ie, the side where the temperature of the hot air is relatively high, to the side away from the burner 6, ie, the side where the temperature of the hot air is relatively low. Therefore, on the side where the temperature of the hot air is lower, the amount of the hot air is increased by that amount, and the snow can be uniformly melted as a whole.

The duct 3 configured as described above is fixed to, for example, a sleeper M. To fix the duct 3 to the sleeper M, for example, as shown in FIGS. 2A and 2B, the duct 3 crosses the duct 3 in the width direction on the upper surface of a portion of the duct 3 located above the sleeper M. Member 13 fixed to the sleeper M and connected to both ends of the bar 13 by bolting or the like
Are used. The bar 13 and the anchor member 14
Can be provided at an appropriate position in the longitudinal direction of the duct 3 as necessary, and the number of the installation is arbitrary. The anchor member 14 has a substantially U-shape, and a U-shaped member 14a provided so as to sandwich both side surfaces and a lower surface of the sleeper M by the inside of the substantially U-shape, and a U-shaped member provided along the upper surface of the sleeper M. And a stay 14b connected to both ends of the character member 14a. The anchor member 14 sandwiches the sleeper M between the inside of the U-shaped member 14a and the stay 14b,
It is fixed to the sleeper M.

As shown in FIG. 2, inside the duct 3, an air guide pipe 7 for guiding the hot air generated by the burner 6 provided in the burner section 2 extends from the tip of the burner 6 along the longitudinal direction of the duct 3. It is provided. The air guide tube 7
The hot air of the burner 6 is guided along the longitudinal direction of the duct 3, and a plurality of discharge ports 7 a for discharging the hot air into the duct 3 along the longitudinal direction are provided on a side surface thereof. The number and arrangement of the discharge ports 7a are arbitrary, and may be provided at equal intervals in the longitudinal direction. For example, like the exhaust port 12 of the duct 3, the density increases as the distance from the burner 6 increases. It may be provided. As a result, the density at which the discharge ports 7 are provided increases from the side closer to the burner 6, ie, the side where the temperature of the hot air is relatively high, to the side away from the burner 6, ie, the side where the temperature of the hot air is relatively low. On the other hand, on the side where the temperature of the hot air is lower, the amount of the hot air increases accordingly, and the entire duct can be heated uniformly. Here, the air guide tube 7 may be directly connected to the tip of the burner 6 or may be provided at a distance from the tip of the burner 6.

The burner section 2 has a burner 6, a part of peripheral equipment of the burner 6, and a housing 16 for accommodating the burner 6 and protecting it from wind, snow and rain. In the present embodiment, the burner 6 is arranged on one of the rails R in the housing 16. As shown in FIG. 3, the housing 16 has an insertion port 16 b through which the tip of the burner 6 is inserted, and a flange 16 around the insertion port 16 b.
a, and a unit 11 constituting the duct 3
And is detachably connected to the flange 11a. In the housing 16, the flange 16a
The pressure sensor 17 that measures the pressure in the duct 3 includes a portion surrounded by
A temperature sensor 18 for measuring the temperature inside the duct 3 is provided.
Numeral 8 is connected to a control device C (see FIG. 2A) via a wiring (not shown), and sends measured values to the control device C as signals.

The burner 6 generates a high-speed hot air flow composed of the surrounding air heated by the combustion gas and the combustion heat, and is easy to remotely control or automatically control the ignition and extinguishing of the burner by the control device. A gas burner is used. In the present embodiment, an all-primary-burner burner is used in which primary air fed by a blower and fuel gas pumped from a gas supply source are mixed in a mixing pipe and the resulting air-fuel mixture is burned. You. As shown in FIG. 2 (a), the burner 6 is connected to a fuel gas supply source G installed outside the track via a gas piping system 21, and also has an intake tower 22 provided outside the track and an air supply piping system. 23. The gas piping system 21 and the air supply piping system 23 are guided from the outside of the track to the housing 16 housed in the housing hole P between the rails R under the rails R.

As shown in FIGS. 3 and 4, the fuel gas supplied from the gas piping system 21 and the supply gas are supplied between the gas piping system 21 and the supply piping system 23 and the burner 6 in the housing 16. A mixing pipe 24 for mixing the outside air (primary air) supplied from the air piping system 23 at an appropriate ratio is provided. The gas piping system 21 receives a fuel gas (for example, natural gas, propane gas, or the like) from the fuel gas supply source G, and supplies the fuel gas to the burner 6 via the mixing pipe 24. As shown in FIG. 4, for example, a source solenoid valve 26 that is opened and closed by the control device C is provided in a portion located outside the track so that the flow of the fuel gas can be controlled by the control device C. Has become. Original solenoid valve 26
And the control device C includes a unit box U provided outside the track.
It is installed inside. And the gas piping system 21
A solenoid valve 27 whose opening and closing is controlled by the control device C is provided in a portion provided in the housing 16 among the components.
The flow of the fuel gas can be controlled by the control device C. In the present embodiment, two solenoid valves 27 are provided. Further, a pressure equalizing valve 2 for adjusting the supply pressure of the fuel gas to the mixing pipe 24 to a predetermined pressure is provided at a subsequent stage of the electromagnetic valve 27, that is, between the electromagnetic valve 27 and the mixing pipe 24.
8 are provided.

As shown in FIG. 4, the air supply piping system 23
It has a blower 29 that sucks outside air from the outside air inlet 22a of the intake tower 22 and sends it to the mixing pipe 24.
A filter 30 for filtering outside air is provided between the blower 29 and the outside air inlet 22a. The operation of the blower 29 is controlled by the control device C, and the amount of air blown is controlled according to, for example, the pressure and temperature in the duct 3. Here, in the air supply piping system 23, the filter 30 and the blower 29 are housed in a housing part 22b (described later) of the intake tower 22.
The air intake tower 22 is for taking in outside air favorably without being disturbed by snow even when snowing, and has an outside air inlet 22a at a height of, for example, about several meters from the ground.
In the present embodiment, the intake tower 22 is provided with an outside air intake 22a for intake at an upper part, and a blower 29 at a lower part.
And a housing portion 22b for housing the filter 30 and the like. A roof 22c is provided above the blower 29 and the filter 30 in the housing 22b, and a drain hole is formed in the housing 22b, and the blower 29 and the filter 30 are mounted on the floor of the housing 22b. It is provided apart from the surface. As a result, the blower 29 and the like are protected from water droplets caused by dew condensation or the like from the outside air intake 22a.

The burner 6 has an inner cylinder 6a whose interior is a combustion chamber, and an outer cylinder 6b which covers the periphery of the inner cylinder 6a so as to form a space S between the inner cylinder 6a. . Inner cylinder 6
A mixture is supplied from a mixing pipe 24 to the combustion chamber formed by a. Further, the space S is connected to the downstream of the blower 29 of the air supply piping system 23 by a dilution pipe T,
Air for diluting the combustion gas of the burner 6 is supplied from the blower 29. Here, the amount of air supplied from the dilution pipe T to the space S is such that the combustion gas in the burner is diluted to one half or less of the limit concentration for detonating the combustion gas.
The air for dilution is heated by the radiant heat transfer of the inner cylinder 6a of the burner 6 and the flame or combustion gas of the burner 6,
It is sent into the duct 3 together with the combustion gas. The burner 6 is provided with a spark plug (not shown) as an ignition device, and the burner 6 is ignited by generating an electric spark by the spark plug. The power supply of the spark plug is controlled by a control device C, and the ignition of the burner can be remotely or automatically controlled by the control device C.

The housing 16 is partially or entirely housed in the housing hole P, so that the amount of protrusion from the track bed F is within a predetermined range. In the present embodiment, the upper surface of the housing 16 does not exceed the upper surface of the rail R. Also,
In the housing 16, a gas connection port 16 c and an air supply port 16 d are formed on a side surface located inside the accommodation hole P. The gas connection port 16 c is a connection portion between a portion provided inside the housing 16 and a portion provided outside the housing 16 in the gas piping system 21 connecting the burner 6 and the fuel gas supply source G. The air vent 16 d is a connection portion between a portion provided inside the housing 16 and a portion provided outside the housing 16 in the air supply piping system 23 connecting the burner 6 and the intake tower 22. Here, the housing 16 is provided with a removable lid 1 on the upper part.
The burner 6 in the housing 16 and peripheral equipment of the burner 6 can be operated and maintained by opening the lid 16e.

The burner 2 constructed as described above is fixed to, for example, a sleeper M. For fixing the burner 2 to the sleeper M, for example, as shown in FIG. 3, a portion of the housing 16 of the burner 2 located above the sleeper M is connected to an anchor member 14 fixed to the sleeper M. It is done by that. In the present embodiment, the connection between the housing 16 and the anchor member 14 is provided by providing overhangs 16 f serving as stays on both side surfaces of the housing 16.
And the anchor member 14 is fixed by bolting or the like.

The operation of each burner section 2 is controlled by the control device C. Control device C
Monitors the pressure in each duct 3 detected by a pressure sensor 17 provided in each burner unit 2 and monitors the air temperature in each duct 3 detected by a temperature sensor 18 provided in each burner unit 2. For example, when the pressure in any one of the ducts 3 rises above a predetermined pressure, or when the temperature inside the duct 3 rises above a predetermined temperature, the remote control panel Re provided in a remote place is The presence of these abnormalities is signaled, or the solenoid valve 27 is automatically turned on.
Is closed to extinguish the burner 6 in which the abnormality has occurred.

The remote control panel Re is provided, for example, in a station building or the like. The remote control panel Re is connected to the control device C by wire or wirelessly, and is brought into the control device C to operate the snow melting machine 1 (the original electromagnetic valve 27). , The opening and closing of the solenoid valve 28 and the start and stop of the operation of the blower 29, the adjustment of the air volume, the supply of power to the spark plug for burner ignition, the supply stop, etc.). Also, by receiving a signal from the control device C indicating that the measured value of the pressure or temperature in the duct 3 indicates an abnormal value, the operator is notified by turning on an alarm lamp or sounding an alarm buzzer. It is. In the present embodiment, the remote control panel Re is connected to the control device C via a wireless telephone line, and is always connected or only when exchanging signals.

The remote control panel Re is provided with, for example, a snowfall sensor or a duct temperature sensor (or a rail temperature sensor) in addition to manual operation by an operator, and automatically operates the burner 6 when certain conditions are satisfied. You may make it do. Conditions for automatically operating the burner 6 include a case where snowfall is actually detected by a snowfall sensor and a case where the temperature of the duct 3 or the rail is measured by, for example, a duct temperature sensor or a rail temperature sensor, and the temperature is equal to or lower than zero degree, Alternatively, it is conceivable to detect that the snow that has fallen on the rails has been piled up without melting.
In addition to the manual operation, the remote control panel Re automatically instructs the control device C to close the solenoid valve 27 and automatically extinguishes the burner 6 when unnecessary, thereby suppressing unnecessary fuel consumption. be able to. The automatic fire extinguishing of the burner 6 can be performed, for example, after a predetermined time has passed since the snowfall sensor detects that the snow has stopped, or
It may be performed when the temperature of the rail in a portion that is not directly heated to a temperature higher than zero degree.
Further, as a safety device, a mechanism for extinguishing a fire when an earthquake is detected may be provided in the remote control panel Re, the control device C, or the burner 6, for example.

The snow-melting machine 1 brought in as described above
Adjusts the length of the duct 3 in accordance with the range in which the snow-free part is to be formed by increasing or decreasing the number of units 11 constituting the duct 3 at the time of installation. Next, a method of using the snow-melting machine 1 will be described. Here, each burner unit 2 may be controlled collectively, or may be controlled independently. First, the original solenoid valve 26 and the solenoid valves 27 and 27 provided in the gas piping system 21 are opened by manual operation, remote operation by the remote operation panel Re, or automatic operation, and the mixing pipe 2 is supplied from the fuel gas supply source G.
4 is supplied with fuel gas. In conjunction with this, the blower 29 provided in the air supply piping system 23 is operated by a manual operation, a remote operation by the remote operation panel Re, or an automatic operation to suck in the outside air from the outside air inlet 22 a of the intake tower 22. It is sent to the mixing tube 24. Here, the outside air sucked into the air supply piping system 23 is filtered by the filter 30 and purified.

Then, the fuel gas and the outside air (primary air) are mixed at an appropriate ratio by the mixing pipe 24 to form an air-fuel mixture, which is sent into the inner cylinder 6 a of the burner 6. And
By remote operation or automatic operation, for example, immediately after the solenoid valve 27 is opened, or after a sufficient time for the fuel gas to be supplied into the inner cylinder 6a after the solenoid valve 27 is opened, the ignition Generate sparks from the spark plug. In this way, the air-fuel mixture in the inner cylinder 6a is ignited by the electric spark generated by the spark plug to burn the burner 6. In the ignition step of the burner 6, the electric spark by the spark plug is continuously generated for several seconds in order to surely ignite the burner 6.

Here, the outer cylinder 6b and the inner cylinder 6a of the burner 6
Is supplied from a dilution pipe T of an air supply pipe system 23 to the radiant heat transfer of the inner cylinder 6 a of the burner 6 and the burner 6.
Is heated by the flame or the combustion gas and sent into the duct 3 together with the combustion gas. As a result, the exhaust gas of the burner 6 is diluted to about half or less of the explosive limit, thereby preventing the exhaust gas from burning explosively,
Safety can be improved. In addition, the hot air generated by the burner 6 is diluted, so that a sufficient amount of hot air in an appropriate temperature range can be supplied into the duct 3. Then, the hot air generated by the burner unit 2 is sent to the air guide pipe 7 and is directly guided along the longitudinal direction of the duct 3 to the other end (front end side) of the duct 3, and the discharge port 7 a of the air guide pipe 7 is provided.
Are provided along the longitudinal direction of the air guide tube 7, so that the hot air is more uniformly distributed in the duct 3 and the duct 3
Can be made substantially uniform throughout. here,
It is not necessary to send all of the hot air generated by the burner unit 2 to the air guide tube 7, and a part of the hot air may be sent directly into the duct 3. And in this way duct 3
The duct 3 itself is heated by the hot air sent inside,
Due to this heat, the snow in contact with the duct 3, ie, the duct 3
The snow accumulated on the upper surface and the snow accumulated on the side of the duct 3 are melted. The exhaust port 12 provided in the duct 3
From there, the hot air that has contributed to the heating of the duct 3 is exhausted and blown to the surrounding snow, and the exhaust also dissolves the snow.

After igniting the burner 6 in this way,
If the snow melter 1 does not need to melt the snow due to the falling snow or the like, the original solenoid valve 2 is manually operated, remotely operated by the remote operation panel Re, or automatically operated.
6. The electromagnetic valves 27, 27 are closed, the supply of fuel gas from the fuel gas supply source G is stopped, and the burner 6 is extinguished. In addition, when a mechanism that extinguishes a fire when an earthquake is detected is provided as a safety device, the burner 6 is extinguished when the earthquake is detected.

According to the snow-melting machine 1 brought in, since the burner 6 is arranged between the rails R, the installation space outside the rails R can be reduced. Further, not only the hot air generated by the burner 6 is directly applied to the snow but also the snow is melted by the heat of the duct 3 heated by the hot air, so that the thermal efficiency can be improved. Also, duct 3
However, since a plurality of detachable units 11 are connected to each other, by connecting the required number of units 11, the length of the duct 3 can be easily adjusted according to the range in which the snow-free portion is to be formed. be able to. Further, since the duct 3 can be divided into a plurality of parts, transportation is easy and construction is also easy.

Further, since the air guide pipe 7 is provided in the duct 3, the hot air can be more uniformly distributed in the duct 3 and the temperature of the duct 3 can be made substantially uniform as a whole. Since the duct 3 is provided with a plurality of exhaust ports 12, the snow is melted by the hot air exhausted from the duct 3, so that the residual heat of the hot air that has contributed to the heating of the duct 3 can be effectively used. In the duct 3, the density of the exhaust ports 12 increases from the side closer to the burner 6, that is, the side where the temperature of the hot air is relatively high, to the side away from the burner 6, that is, the side where the temperature of the hot air is relatively low. Therefore, on the side where the temperature of the hot air is lower, the amount of the hot air increases by that amount, and snow melting can be performed uniformly as a whole.

Further, since the control device C for controlling the operation of the burner 6 can be operated from a remote place by the remote control panel Re, there is no need for the worker to go to the installation site, and the burden on the worker is reduced. . Although the burner 6 of the present invention has the burner 6 provided between the rails R, the burner 6 can be operated remotely, so that the worker does not need to enter the track. Complicated work can be eliminated. Further, in this embodiment, since the remote control panel Re and the control device C are wirelessly connected, wiring work is unnecessary or requires only a small amount of time, and thus installation costs are reduced.

Further, since the two ducts 3 are arranged in parallel, even if one of the burners 2 cannot be operated due to failure or maintenance, for example, the other burners 2 cannot be operated. Can be operated to melt snow by the other duct 3 arranged in parallel, and the safety factor can be improved.

In the above embodiment, an example is shown in which two ducts 3 are provided in parallel, but the present invention is not limited to this, and more ducts may be provided. Further, for example, by providing a plurality of burners 6 in parallel to each burner unit 2 and providing a plurality of ducts 3 in parallel corresponding to each burner 6, the number of installed ducts 3 can be increased without increasing the number of installed burner units 2. May be increased.

[Second Embodiment] Hereinafter, a second embodiment of a snow-melting machine brought in according to the present invention will be described. The same or similar parts as those in the first embodiment of the present invention are the same. Description will be made using reference numerals. Here, FIG. 6 is a view showing the structure of a snow-melting machine brought in according to the second embodiment, FIG. 6 (a) is a partially cutaway plan view, and FIG.
FIG. 3A is a cross-sectional view (schematic diagram) taken along the line AA of FIG. The snow snowmelt 31 brought in according to the second embodiment of the present invention is different from the snowmelt 1 brought in according to the first embodiment in that the side of the duct 3 is located on both sides from a position above the exhaust port 12. And a snow melting plate 32 that is heated by the exhaust air from the exhaust port 12 is provided. Here, in the snow-melting device 31 brought in, the exhaust port 12
Are provided only on both side surfaces, and the exhaust gas from the exhaust port 12 is circulated below the snow melting plate 32 so that the residual heat of the exhaust is mainly
2 and for melting the snow located on the tip side of the snow melting plate 32.

As shown in FIG. 6B, the snow melting plate 32
It is attached to the upper part of the side surface of the duct 3, and is provided so as to be inclined downward as the distance from the duct 3 increases. In the present embodiment, the snow melting plate 32 is inclined such that the end portion on the side separated from the duct 3 has substantially the same height as the lower surface of the duct 3. Here, the amount by which the snow melting plate 32 projects to the side of the duct 3 is, for example, about 175 mm when the width of the portion of the duct 3 excluding the flange 11 a is about 150 mm. In the present embodiment, as shown in FIG. 6A, the snow melting plate 32 is composed of a plurality of units of a size that can be easily transported and connected.
It is attached to one side. In the present embodiment, the snow melting plate 32 is connected to the unit 11 adjacent to the unit 11 across the connection portion of the one unit 11.
And the snow melting plate 32 is also extended to the connecting portion of the unit 11, but is not limited to this.
For example, in the snow melting plate 32, a portion related to the connection portion of the unit 11 may be configured by another member attached across the adjacent snow melting plate 32.

The snow melting machine 3 thus constructed
According to 1, the hot air sent into the duct 3 from the burner 6 is exhausted from the exhaust port 12 to the side of the duct. This exhaust and heat conduction from the duct 3 heats the snow-melting plate 32 to melt the snow on the snow-melting plate 32, and the snow-melting plate 32
Since the exhaust gas is guided to the side of the duct 3, the snow can be melted over a wider area.

[Third Embodiment] Hereinafter, a third embodiment of a snow-melting machine brought in according to the present invention will be described, and the same or similar parts as those in the first embodiment of the present invention will be described. Description will be made using reference numerals. Here, FIG. 7 is a partially broken plan view showing the structure of a snow-melting machine brought in according to the third embodiment and an example of its installation. The carry-in snow melter 41 according to the present embodiment is provided between the pair of rails R and generates a hot air, and is provided between the rails R along the rail R, and the hot air is sent from the burner portion 42. And a duct 43 that is heated by the heating. The burner portion 42 and the duct 43 have a width (dimension in a direction perpendicular to the longitudinal direction of the rail R) such that a gap is formed between the rail R and the rail R to allow passage of the train wheels and the like. Things. The burner section 42 has substantially the same configuration as the burner section 2 shown in the first embodiment, and a burner 6 for generating hot air is provided toward the duct 43 at substantially the center in the width direction. Have been. In the duct 43, an air guide pipe 7 for guiding the hot air generated by the burner 6 is provided from the tip of the burner 6 along the longitudinal direction of the duct 43.

The duct 43 has substantially the same configuration as the duct 3 shown in the first embodiment, and is constituted by connecting a plurality of units 51 which can be detached from each other. These units 51 are detachably connected to each other by means commonly used, and are also connected to the burner unit 2 in the same manner. In the present embodiment, the unit 51 is a cylindrical member having a size (for example, 70 cm in width and 1 m in length) that is easy to carry and connect, and has a substantially square cross section. Are flanges 51 for connecting to other units 51, respectively.
a is formed. And these units 51
With the flanges 51a abutting each other, the flange 5
1a are connected to each other by, for example, bolting. In the present embodiment, the height of the unit 51 is set so that the highest portion does not exceed the upper surface of the rail R when installed on the roadbed.

Of these units 51, the unit 41 connected to the burner unit 2 is configured such that the flange 51 a on the burner unit 2 side is connected to the flange 16 g provided on the housing 16 of the burner unit 2. The unit 51 which is connected to the end of the duct 43 (the end opposite to the side connected to the burner 52) of the unit 51 is covered with a flange 51a on the end side. 51c is attached, and the open end is closed. Here, the connection portion between the units 51, the connection portion between the unit 51 and the burner portion 42, and the connection portion between the unit 51 and the lid 51 c are sealed by using a gasket, packing, or the like, and are sent into the duct 43. Leakage of the hot air from the connection portion can be prevented, and the hot air can be used efficiently.

A plurality of exhaust ports 12 for exhausting hot air sent into the duct 43 to the outside of the duct 43 are provided on the side surface and the lower surface of the unit 51. The arrangement of the exhaust ports 12 can be the same as the arrangement of the exhaust ports 12 in the duct 3 shown in the first embodiment, and may be increased or decreased as necessary, or the position may be changed. The duct 43 configured as described above is fixed to, for example, the sleeper M. For fixing the duct 3 to the sleeper M, for example, a method similar to the method of fixing the duct 3 to the sleeper M shown in the first embodiment can be adopted.

As shown in FIG. 7, a burner 6 provided in the burner portion 42 is provided in the duct 43 described above.
An air guide pipe 7 that guides the hot air generated by the burner 6 is provided along the longitudinal direction of the duct 43 from the tip of the burner 6. Here, even if the air guide tube 7 is directly connected to the tip of the burner 6,
Further, it may be provided at a distance from the tip of the burner 6.

The burner section 42 has the burner 6, a part of the peripheral equipment of the burner 6, and the housing 16 for accommodating the burner 6 and protecting it from wind, snow and rain. Here, the housing 16
In the same manner as in the first embodiment, an insertion opening through which the tip of the burner 6 is inserted is formed on the surface on the duct 43 side,
A flange 16g is provided around the insertion opening, and is detachably connected to the flange 51a of the unit 51 constituting the duct 43. In the housing 16, a portion surrounded by the flange 16 g, that is, a portion facing the inside of the duct 43, includes a pressure sensor 17 for measuring the pressure in the duct 43 and a temperature sensor 18 for measuring the air temperature in the duct 43. (Not shown), the pressure sensor 17 and the temperature sensor 18 are provided.
Are connected to the control device C via wiring (not shown), and send measured values to the control device C as signals. The burner section 42 thus configured is fixed to the sleeper M, for example. Sleeper M for burner part 42
For example, a method similar to the method of fixing the burner portion 2 to the sleeper M shown in the first embodiment can be employed.

The snow-melting machine 4 carried in the above configuration
1 adjusts the length of the duct 43 according to the range in which the snow-free portion is to be formed by increasing or decreasing the number of units 51 constituting the duct 43 at the time of installation. Here, as shown in FIG. 8, for example, a plurality of sets of the burner portion 42 and the duct 43 may be installed along the longitudinal direction of the rail R to form a single snow melting machine. In this case, for example, the gas supply source G, the control device C, etc., of the snow snowmelter 41 brought in,
By sharing a portion installed outside the track to simplify the equipment, or by sharing in this way, it is possible to centrally manage the plurality of snow-melting machines brought in. by this,
For example, even if some of the burners 42 cannot be operated due to malfunction or maintenance, the other burners 42 can be operated to melt snow and improve the safety factor. Can be done.

The snow-melting machine 4 thus constructed
The method of using 1 is almost the same as that of the carry-in snow melting machine 1 shown in the first embodiment.

In each of the above embodiments, the duct 3 (or the duct 43) is provided with the exhaust port 12 so as to increase in density as it goes away from the burner 6, as schematically shown in FIG. However, the present invention is not limited to this. For example, the exhaust ports 12 may be provided at regular intervals along the longitudinal direction of the duct 3, and as schematically shown in FIG. Alternatively, the weighted snow melting portion 11d in which the exhaust port 12 is provided at a higher density than other places can be formed. Since the hot air is intensively blown out in the focused snow melting portion 11d as compared with the other portions, the snow melting can be focused in this portion. The focused snow melting section 11d can be provided in any part where the snow melting is to be focused, and the number of the snow melting sections is arbitrary.

In each of the above-described embodiments, the air guide tube 7 may be constituted by a plurality of detachable piping units like the duct 3, and in this case, the required number of piping units may be provided. By connecting, the length of the air guide tube 7 can be easily adjusted according to the length of the duct 3. Further, since the air guide tube 7 can be divided into a plurality of parts, transportation is easy and construction is also easy. Also,
The control device C is not in the unit box U, but in the housing 1
6 and the blower 29 and the filter 30 are provided in the housing 16 of the burner section 2 (or the burner section 42), not in the housing section 22b of the intake tower 22.
It may be provided inside.

[0053]

According to the present invention, the burner is disposed between the rails.
Installation space outside the rail can be reduced.
Further, not only the hot air generated by the burner is directly applied to the snow but also the snow is melted by the heat of the duct heated by the hot air, so that the thermal efficiency can be improved.

According to the second embodiment of the present invention, the length of the duct can be changed by connecting the units between the rails as long as a snowless portion is required. Further, since the duct can be divided into a plurality of parts, transportation is easy and construction is also easy.

According to the third aspect of the present invention, the hot air generated by the burner is directly guided along the duct to the other end of the duct by the air guide tube, and the discharge port of the air guide tube extends in the longitudinal direction of the air guide tube. , The hot air can be more uniformly distributed in the duct, and the temperature of the duct can be made substantially uniform as a whole.

According to the carry-in snow melting machine according to the fourth aspect, snow melting can be performed over a wider range.

According to the present invention, the control device for controlling the operation of the burner can be operated from a remote place by the remote control panel, so that the worker does not need to go to the installation site. The burden on the worker is reduced. Although the burner of the present invention has a burner provided between the rails, remote control of the burner is possible, which eliminates the need for an operator to enter the track,
Complicated work such as safety confirmation can be eliminated.

According to the present invention, even if one or some of the burners cannot be operated due to malfunction or maintenance, another burner can be operated. Then, snow melting can be performed by at least one of the ducts arranged in parallel, and the safety factor can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an installation example of a snow-melting machine brought in according to a first embodiment of the present invention.

FIGS. 2A and 2B are views showing the structure of a snow melting machine brought in according to the first embodiment, FIG. 2A being a partially cutaway plan view, and FIG. 2B being a partially cutaway side view.

3A and 3B are diagrams illustrating the structure of a burner portion of the snow-melting device brought in according to the first embodiment, wherein FIG. 3A is a plan sectional view, FIG. 3B is a side view, and FIG. (c) is a front view.

FIG. 4 is a piping diagram of a carry-in snow melting machine according to the first embodiment.

FIG. 5 is a plan view showing a schematic shape of the duct according to the first embodiment.

6A and 6B are diagrams showing the structure of a snow-melting device brought in according to a second embodiment, wherein FIG. 6A is a partially cutaway plan view, and FIG. FIG. 2 is a cross-sectional view (schematic diagram) as viewed in the direction of arrow A.

FIG. 7 is a partially cutaway plan view showing a structure of a snow-melting machine brought in according to a third embodiment and an example of installation thereof.

FIG. 8 is a plan view schematically showing an example of an arrangement of a snow-melting device brought in according to the first embodiment.

FIG. 9 is a plan view schematically showing another example of the shape of the duct in the snow-melting machine brought in according to the present invention.

[Explanation of symbols]

1, 31, 41 Snow-melting equipment brought in 3, 43 Duct 6 Burner 7 Air guide tube 7a Discharge port 11, 51 Unit 12 Exhaust port 32 Snow-melting plate C Control device Re Remote control panel

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takamichi Takahashi, Inventor 2-2-2 Yoyogi, Shibuya-ku, Tokyo (72) Inventor Fumio Shirato 2-2-2, Yoyogi, Shibuya-ku, Tokyo (72) Inventor Satoshi Watanabe Hiroshi Shishido, 3-10-19, Chuo 3-chome, Aoba-ku, Sendai, Miyagi Prefecture (72) Inventor Kenjiro Fukuyama 5--22, Higashi-Gotanda, Shinagawa-ku, Tokyo, 72-7-10-19, Chuo, 3-chome, Aoba-ku, Sendai, Miyagi Prefecture No. 27 (72) Inventor Kinya Hosoyama 5-22-22 Higashi Gotanda, Shinagawa-ku, Tokyo F-term (reference) 2D056 BA01

Claims (6)

[Claims] 1. A burner provided between rails, and a duct provided between the rails along the rails and heated by the hot air generated by the burner being sent in. Bring your own snow melter. 2. The carry-in snow melting machine according to claim 1, wherein said duct is formed by connecting a plurality of detachable units to each other. 3. An air guide tube for guiding hot air generated by the burner along the longitudinal direction of the duct is provided in the duct, and a discharge port for discharging hot air into the duct is provided on a side surface of the air guide tube. The carry-in snow melting machine according to claim 1 or 2, wherein a plurality of outlets are provided along a longitudinal direction. 4. A plurality of exhaust ports for exhausting hot air sent into the duct to the outside are provided on a side surface of the duct along a longitudinal direction, and the duct is provided at a position higher than the exhaust port. The snow melting machine according to any one of claims 1 to 3, further comprising a snow melting plate that protrudes laterally from a position and is heated by exhaust air from the exhaust port. 5. The snowmelt brought in according to claim 1, further comprising a control device for controlling the operation of the burner, and a remote control panel for remotely controlling the control device. vessel. 6. The method according to claim 1, wherein at least two or more sets of said burner and said duct are provided, and said sets of ducts are arranged in parallel with each other. Carry-on snow melting machine.