JP4586165B2 - Snow melting equipment - Google Patents

Description

  The present invention relates to a snow melting device in which snow piled up on a road or the like is thrown and the thrown snow is heated and melted.

  Conventionally, as this type of snow melting apparatus, for example, one described in Patent Document 1 (Japanese Patent No. 3051957) is known.

As shown in FIG. 7, the snow melting device Sa includes a snow melting tank 1 having a bottom wall 2 and a side wall 3 erected from the bottom wall 2 and into which snow is introduced from an opening formed by the side wall 3, and a snow melting tank 1. A cylindrical heat transfer body 4 that projects from the side wall 3 of the snow melting tank 1 to transfer heat to the snow in the snow melting tank 1 and melts the snow, and a burner 5 that is provided inside the heat transfer body 4 and heats the heat transfer body 4 And. Reference numeral 4 a is a branched heat transfer body that branches left and right from the tip of the heat transfer body 4. And it is made to discharge snowmelt water from the drain port 6 provided in the bottom part of the snowmelt tank 1. FIG.
The heat transfer body 4 and the heat transfer body 4a have ridges 7 along the protruding direction of the heat transfer body 4 on the surfaces thereof, so that heat from the burner 5 can be dissipated. The heat transfer body 4 is provided below the heat transfer body 4 along the protruding direction of the heat transfer body 4 and receives the snowmelt water to transfer the heat of the heat transfer body 4 to the heat transfer body 4 itself. A water receiving auxiliary plate 8 is provided to prevent deformation.

When the snow melting device Sa is used, the burner 5 is ignited and activated to heat the heat transfer body 4 and snow is poured into the snow melting tank 1. At this time, when the snow thrown into the snow melting tank 1 touches the heat transfer body 4, the heat from the burner 5 is transmitted to the snow by the heat transfer body 4, and the snow is melted by this heat.
And the snowmelt water is drained from the drain port 6.

Japanese Patent No. 3051957

  By the way, in such a snow melting apparatus Sa, there are the ridge 7 and the water receiving auxiliary plate 8 and the surface area is large, but these are merely protruding from the heat transfer body 4, so Tends to stay on the surface of the heat transfer body 4, and the remaining snowmelt water is further heated and easily vaporized. Therefore, since the heat from the burner 5 is easily taken away by the latent heat for vaporizing snowmelt water, the melting efficiency of the snow is reduced as compared with the case of discharging as water without vaporization. was there.

  The present invention has been made in view of the above problems, and while increasing the surface area of the heat transfer body to improve the heat dissipation efficiency, it is difficult for snowmelt water to stay on the surface of the heat transfer body, making it easier to flow down, It is an object of the present invention to provide a snow melting device that makes it difficult to take away latent heat due to vaporization of snow melting water and improves the melting efficiency of snow.

  In order to achieve such an object, a snow melting device of the present invention comprises a bottom wall and a side wall standing from the bottom wall, and a snow melting tank into which snow is poured from an opening formed by the side wall, and the snow melting tank A snow melting device provided with a heat transfer body that projects from the side wall of the snow melting tank to transfer heat to the snow in the snow melting tank and melts the snow, and a burner that is provided inside the heat transfer body and heats the heat transfer body A plurality of elongate plate-like heat radiation fins having a receiving surface capable of receiving snowmelt water flowing down the heat transfer body along the projecting direction of the heat transfer body. The receiving surface of the radiating fin is inclined so that the snowmelt water on the receiving surface of the fin flows down from the proximal end in the protruding direction of the heat transfer body toward the distal end.

In order to melt snow accumulated on a road or the like using this snow melting device, the burner is ignited and the heat transfer body is heated.
Then, snow is poured into the snow melting tank. In the snow melting tank, the heat from the burner is transmitted to the snow in the snow melting tank through the heat transfer body. At this time, since the heat radiating fins are provided outside the heat transfer body, the surface area of the heat transfer body is increased, and the efficiency of heat transfer to snow can be improved.

When the snow melts and becomes melted water due to the heat from the burner, the melted water is received by the receiving surface of the radiation fin.
At this time, since the receiving surface of the radiating fin is inclined, the snowmelt water on the receiving surface of the radiating fin flows on the receiving surface and flows down from the heat transfer body.
This makes it easier for the snowmelt water to separate from the heat transfer body before the snowmelt water evaporates by flowing on the receiving surface without staying on the receiving surface, so the latent heat transferred from the burner when the snowmelt water evaporates. Is less likely to be taken away and snow melting efficiency can be improved. Further, when this snowmelt water flows down, it comes into contact with the snow in the snowmelt tank, so that the snowmelt water and the snow in the snowmelt tank are heat exchanged to melt the snow. This also increases snow melting efficiency.
Then, the snowmelt water in the snowmelt tank is appropriately drained to the outside of the snowmelt tank through a discharge port or by a pump or the like.

In addition, if necessary, the heat transfer body includes an upper plate that covers the upper side of the burner, a lower plate that covers the lower side of the burner, and a distal end side of the upper plate in the protruding direction of the heat transfer body. A top end plate that extends downward, and the upper plate is formed on a top receiving surface that can receive snow introduced from the opening of the snow melting tank and on both sides of the top receiving surface. It is set as the structure which had the side part receiving surface which spreads toward the above, and was set as the structure which arranged the said radiation fin side by side up and down on the side part receiving surface of the said upper side plate body.
In this case, when the snow is poured into the snow melting tank and the snow is placed on the top receiving surface and the side receiving surface of the upper plate, the side receiving surface expands downward on the side receiving surface. Therefore, it can be melted by the heat transfer body and the radiating fin while keeping snow.
Further, since the heat dissipating fins are arranged side by side, heat can be uniformly transferred to the snow on the side receiving surface of the heat transfer body, and the melting efficiency of snow can be improved.

Further, if necessary, the top receiving surface is formed so as to be lowered from the proximal end in the protruding direction of the heat transfer body toward the distal end.
As a result, when the snow in contact with the heat transfer member melts and becomes snowmelt water, the snowmelt water easily flows on the inclined top receiving surface. Therefore, the snowmelt water flows without staying on the top receiving surface, and is easily separated from the heat transfer body before vaporization, so that it is difficult for the latent heat transmitted from the burner to be taken away when the snowmelt water vaporizes, The melting efficiency of can be improved.

If necessary, the top receiving surface is formed so that the cross section is linearly refracted at the top .
As a result, the top receiving surface is formed so that the cross section is a line refracted at the top, so that the snowmelt water obtained by melting the snow in contact with the top receiving surface easily flows to the left and right on the top receiving surface. . Therefore, since it becomes easy to leave the snowmelt water from the heat transfer body before the snowmelt water evaporates, it is difficult to take away the latent heat transmitted from the burner when the snowmelt water evaporates, and the melting efficiency of snow can be improved. .

Further, if necessary, the front end side plate body has a front end side receiving surface that is inclined from the proximal end in the protruding direction of the heat transfer body toward the front end, and the heat transfer body is provided on the front end side receiving surface. An elongate plate-like tip-side radiating fin having a receiving surface capable of receiving snowmelt water flowing down the outside of the throat, and receiving the tip-side radiating fin so that the snowmelt water on the receiving surface of the tip-side radiating fin flows down The surface is inclined.
Thereby, when snow is thrown into the snow melting tank, since the tip side heat radiation fin is provided, the heat transfer efficiency can be improved even for the snow on the tip side receiving surface side. Moreover, since the receiving surface of the front-end | tip radiating fin inclines, the snowmelt water on the receiving surface of a radiating fin flows on this receiving surface, and flows down from a heat transfer body. As a result, even in the tip side radiating fin, it flows on the receiving surface without staying on the receiving surface, and it becomes easy to separate the snow melting water from the heat transfer body before the snow melting water evaporates. The heat transferred from the burner is less likely to be taken as latent heat, and the snow melting efficiency can be improved.

Furthermore, if necessary, a snow receiving plate for receiving snow is installed between the protruding side portion of the heat transfer body and the side wall of the snow melting tank, and the snow receiving plate is installed in the protruding direction of the heat transfer body. The configuration is inclined from the proximal end toward the distal end.
Thereby, the heat from the heat transfer body is transmitted to the snow receiving plate and heated. The snow falling from the heat transfer body and a part of the snow thrown from the opening of the snow melting tank are received by the snow receiving plate, and the snow is also melted by this snow receiving plate.
In this case, since the snow receiving plate is inclined from the base end in the projecting direction of the heat transfer body toward the distal end, the snow melting water flows on the snow receiving plate, and before it evaporates, Therefore, it is difficult to take away the latent heat transmitted from the burner when the snowmelt water vaporizes, and the melting efficiency of snow can be improved. Furthermore, by installing a snow receiving plate for receiving snow between the protruding side portion of the heat transfer body and the side wall of the snow melting tank, this can act as heat release prevention and snow melting efficiency.

Moreover, it is set as the structure which formed the outflow port which discharges | emits the exhaust_gas | exhaustion from the said burner toward the lower surface of the said snow receiving plate in the side part of the said heat transfer body as needed. Accordingly, the snow receiving plate is also heated by the exhaust from the burner when the exhaust from the outlet is blown onto the snow receiving plate. Therefore, the melting efficiency of snow can be improved.
Furthermore, a plurality of passage openings through which the exhaust from the outlet passes are formed in the snow receiving plate. As a result, exhaust is blown out from the passage opening opened in the snow receiving plate, warm exhaust is sprayed onto the snow, and the snow on the snow receiving plate is heated by this exhaust. Therefore, the melting efficiency of snow can be improved.

Next, if necessary, a drain outlet for discharging the snowmelt water is provided on a side wall of the snowmelt tank, at a predetermined height away from the bottom wall of the snowmelt tank.
Thereby, if the water of the bottom part in a snow melting tank accumulates more than a fixed amount, it can be poured from a drain outlet naturally. Moreover, since the snowmelt water warmed to some extent by the heat transfer body flows into the water accumulated at the bottom of the snowmelt tank, the snowmelt water in the snowmelt tank is heated. When the snow that has fallen from the heat transfer body is immersed in the snowmelt water that has accumulated at the bottom of the snowmelt tank, heat exchange between the snow and the snowmelt water is performed, so that the snow can be melted.

Further, if necessary, a water suction pump for sucking snow melt water stored below the discharge port is provided in the snow melt tank, and the water suction pump is directed to the snow introduced into the snow melt tank. The water discharge pipe for discharging the snowmelt water is connected.
As a result, the snow is melted also by the snowmelt water discharged from the water discharge pipe, so that the melting efficiency of the snow put in the snowmelt tank can be improved.

Further, if necessary, a water suction pump is provided in the snow melting tank to suck the snow melting water accumulated below the discharge port, and the water suction pump is configured to suck the water into the snow melting water in the snow melting tank. An agitation pipe for discharging the snow melt water sucked from the pump and stirring the snow melt water in the snow melt tank is connected.
Since the water in the snow melting tank is constantly stirred by the stirring pipe to promote convection of the water, the heat exchange efficiency between the snow and water at the bottom of the snow melting tank is improved, and the melting efficiency of the snow is improved.

Furthermore, if necessary, a partition that covers the water suction pump is provided, and a communication hole through which the snow melting water passes is provided at a position away from the bottom wall of the snow melting tank of the partition.
Foreign substances such as dirt on the road are thrown into the snow melting tank together with snow, and when the snow melts, it accumulates near the bottom wall of the snow melting tank, but a partition is provided and the water in the snow melting tank passes through the communication hole. Since it enters the inside of the partition wall, foreign matter in the vicinity of the bottom wall is blocked by the partition wall, making it difficult for the foreign matter to enter the inside of the partition wall.

Further, if necessary, there is provided a ridge that joins one end to the heat transfer body and the other end to the inside of the partition wall and guides water flowing down the surface of the heat transfer body into the partition wall.
Since water from the trough flows into the partition wall, the water sucked by the water suction pump becomes warm even a little. Thereby, since the snowmelt water discharged to the snow in a snowmelt tank or the snowmelt water stirred in the snowmelt tank is somewhat warmed, improvement in the melting efficiency of snow can be expected.

Moreover, it is set as the structure which provided the heat sink which transmits the heat | fever of the said heat transfer body to the water collected on the bottom part of the said snow melting tank below the said heat transfer body as needed.
Since the heat of the heat transfer body is transferred to the water in the snow melting tank by the heat radiating plate, the water in the snow melting tank is heated several tens of times more efficiently than the hot air heating. The melting efficiency of snow soaked in can be improved.

Furthermore, if necessary, the heat transfer body is provided with a number of exhaust ports through which the exhaust from the burner is exhausted, and the exhaust ports are provided directly below the heat radiating fins.
Thereby, the snow on the heat transfer body is also melted by the exhaust of the burner from the exhaust port. At this time, since the exhaust port is provided directly under the radiating fin, the snow melting water is blocked to some extent by the radiating fin, so that it is difficult for the snow melting water to enter from the exhaust port and prevents the heat transfer body from being adversely affected by the burner. Is done.

According to the snow melting device of the present invention, since a plurality of heat radiating fins are provided outside the heat transfer body, the surface area of the heat transfer body is increased, and the heat transfer efficiency to snow can be improved.
In addition, since the receiving surface of the radiating fin is inclined, the snowmelt water flows on the receiving surface without staying on the receiving surface, and is easily separated from the heat transfer body before the snowmelt water vaporizes. The heat transferred from the burner during vaporization is less likely to be taken as latent heat, and the melting efficiency of snow can be improved.

  Hereinafter, a snow melting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 5, the snow melting device S according to the embodiment of the present invention is configured such that snow piled up on a road or the like is thrown in, and the thrown snow is heated and melted. Snow is introduced from an opening 14 having a side wall 12 standing from the bottom wall 11 and formed by the side wall 12, and is provided on the side wall 12 of the snow melting tank 10. A heat transfer body 20 that transfers heat to the snow in the snow melting tank 10 to melt the snow, and a burner 50 that is provided inside the heat transfer body 20 and heats the heat transfer body 20 are provided.
In the embodiment, the side wall 12 of the snow melting tank 10 is formed in a bowl shape having two sets of two side plates 13 facing each other. The heat transfer body 20 and the burner 50 are formed to protrude from one side plate 13 (a). Further, as shown in FIG. 2, one of the two side plates 13 (b) parallel to the protruding direction of the heat transfer body 20 is provided on the other side in order to make it easier to put snow. The height is lower than that of the face plate 13.
The bottom wall 11 and the side wall 12 of the snow melting tank 10 are composed of a metal inner plate 15 and an outer plate 16 having a heat insulating effect. The outer plate 16 is made of, for example, a wooden concrete panel mainly used for construction.

Further, the side wall 12 of the snow melting tank 10 is provided with a drain port 17 for discharging the snow melting water W at a position away from the bottom wall 11 of the snow melting tank 10 by a predetermined height. As shown in FIGS. 4 and 5, the drain port 17 is provided substantially at the same level as the lower end of the heat transfer body 20. A flexible drain pipe 18 is connected to the drain port 17.
A drain wall 19 is provided on the bottom wall 11 of the snow melting tank 10 so as to be openable and closable and capable of discharging the snow melting water W accumulated at the bottom of the snow melting tank 10 to the outside of the snow melting tank 10.

The heat transfer body 20 includes a metal upper plate 21 that covers the upper side of the burner 50, a metal lower plate 22 that covers the lower side of the burner 50, and a protrusion direction of the heat transfer body 20 of the upper plate 21. It is configured to include a metal tip side plate body 23 extending downward toward the tip 20b side.
The upper plate 21 has a top receiving surface 24 that can receive snow introduced from the opening 14 of the snow melting tank 10, and side receiving surfaces 25 that expand downward on both sides of the top receiving surface 24. ing. The top receiving surface 24 of the upper plate 21 is formed to be inclined so as to descend from the proximal end 20a in the protruding direction of the heat transfer body 20 toward the distal end 20b. Moreover, the top receiving surface 24 is formed so that the cross section is a linear shape refracted at the top .

Furthermore, the outer side of the side receiving surface 25 of the upper plate 21 has a receiving surface 30 a that is provided along the protruding direction of the heat transfer body 20 and can receive the snowmelt water W flowing down the outside of the heat transfer body 20. A plurality of elongated plate-like heat radiation fins 30 are provided. The heat radiating fins 30 are formed of metal in a L-shaped cross section, one piece is welded and fixed to the side receiving surface 25, and the receiving surface 30a is formed on the other piece. Three radiating fins 30 are vertically arranged on each side receiving surface 25.
Further, as shown in FIGS. 1 and 2, a snow receiving plate 35 that receives snow is provided between the protruding side portion of the heat transfer body 20 and the side wall 12 of the snow melting tank 10. Specifically, a snow receiving plate 35 is installed between the edge of the upper plate 21 and the side wall 12. The snow receiving plate 35 is formed in an arc shape in cross section, and is inclined from the proximal end 20a in the protruding direction of the heat transfer body 20 toward the distal end 20b.

  As shown in FIGS. 4 and 5, the lower plate 22 is formed in an inverted trapezoidal cross section. A plurality of heat radiating plates 26 that transmit heat of the lower plate body 22 to the snowmelt water W collected at the bottom of the snowmelt tank 10 are provided on the lower surface of the lower plate body 22.

  The distal end side plate body 23 is configured to have a distal end side receiving surface 27 that is inclined from the proximal end 20a in the protruding direction of the heat transfer body 20 toward the distal end 20b. The front end side receiving surface 27 of the front end side plate body 23 is provided with an elongated plate-like front end side heat radiation fin 31 having a receiving surface 31 a that can receive the snowmelt water W flowing down the outside of the heat transfer body 20. Like the heat radiation fin 30, the front end side heat radiation fin 31 is formed in a L-shaped cross section by metal, one piece is welded and fixed to the front end side reception surface 27, and the reception surface 31a is formed on the other piece. ing. Moreover, the receiving surface 31a of this front end side radiation fin 31 is inclined so that the snowmelt water W on the receiving surface 31a flows down.

  Furthermore, an outflow port 28 through which the exhaust from the burner 50 flows out toward the lower surface of the snow receiving plate 35 is formed on the side of the heat transfer body 20. Both side ends of the upper plate 21 and the lower plate 22 are separated from each other, and the outflow port 28 is formed therebetween. Further, the snow receiving plate 35 is formed with a plurality of passage openings 36 through which the exhaust from the outlet 28 passes.

  Further, the heat transfer body 20 is provided with a number of exhaust ports 40 through which exhaust from the burner 50 is exhausted. The exhaust port 40 is provided in each of the side receiving surface 25 of the upper plate 21, the lower plate 22, and the distal receiving surface 27 of the distal plate 23. The side receiving surface 25 of the upper plate 21 and the exhaust port 40 of the distal end receiving surface 27 of the distal side plate 23 are provided directly below the radiating fins 30. Further, the exhaust port 40 of the lower plate 22 has a higher density than the exhaust ports 40 of the upper plate 21 and the front plate 23, and is easily exhausted to the lower side of the heat transfer body 20. Yes.

The burner 50 uses, for example, fossil fuel as fuel (kerosene in the embodiment), is formed in an elongated cylindrical shape, and is provided with a flame outlet 51 that ejects a flame at the tip thereof. The burner 50 is bent upward so that the flame outlet 51 ejects a flame upward on the protrusion direction tip 20b side of the heat transfer body 20.
Further, the base end side of the burner 50 is connected to a main body 52 that passes through the side plate 13 (a) of the side wall 12 of the snow melting tank 10 and feeds fuel or the like to the burner 50. The main body 52 is provided on the outside of the snow melting tank 10, and is provided on a stand 53 attached to the outside of the side plate 13 (a) of the side wall 12 of the snow melting tank 10. In addition, a fuel tank 54 that is connected to the main body 52 and supplies kerosene to the main body 52 is provided on the upper portion of the main body 52.

As shown in FIGS. 4 to 6, the burner 50 is covered with a metal cylinder 85 having a cross section of an octagon provided between the burner 50 and the heat transfer body 20. A large number of holes 56 through which a flame blows out are formed in the wall portion of the cylindrical body 55. The holes 56 are provided uniformly over the entire wall portion of the cylindrical body 55. The cylindrical body 55 is supported with respect to the upper plate body 21 and the lower plate body 22 by metal support plates 57 provided at both ends thereof. The hole 56 is also provided in the support plate 57 on the protruding end 20b side of the heat transfer body 20.
In addition, on the base end side of the burner 50, heat from the burner 50 reaches the side plate 13 (a) side between the support plate 57 and the side plate 13 (a) of the side wall 12 of the snow melting tank 10. A metal barrier 58 is provided to prevent it.

Further, as shown in FIGS. 3 and 4, a water suction pump 60 that sucks water accumulated below the drain port 17 is provided in the snow melting tank 10. The water suction pump 60 is mounted on the bottom wall 11 on the corner side of the side plate 13 that is adjacent to the side plate 13 having a high height, on the side of the forward end 20b in the protruding direction of the heat transfer body 20.
As shown in FIGS. 1 to 4, the water suction pump 60 is connected with a water discharge pipe 61 having a water discharge port 62 for discharging the snow melt water W toward the snow introduced into the snow melt tank 10. Yes. The water discharge pipe 61 is attached to one side plate 13 (c) of the snow melting tank 10. Three water outlets 62 of the water discharge pipe 61 are provided in the water discharge pipe 61.
The water suction pump 60 is connected to a stirring pipe 63 that discharges the snow melt water W sucked from the water suction pump 60 into the snow melt water W in the snow melt tank 10 and stirs the snow melt water W in the snow melt tank 10. ing. One end of the stirring pipe 63 is connected to the water discharge pipe 61, and is connected to the water suction pump 60 via the water discharge pipe 61. Further, the other end of the stirring pipe 63 is submerged in the snowmelt water W, and the snowmelt water W collected at the bottom of the snowmelt tank 10 is stirred by the snowmelt water W released from the other end.

Moreover, as shown in FIG.3 and FIG.4, the partition 65 which covers the water suction pump 60 is provided. The partition wall 65 is made of, for example, resin. A communication hole 66 through which the snowmelt water W passes is provided at a position away from the bottom wall 11 of the snowmelt tank 10 of the partition wall 65.
Further, a flange 68 is provided that has one end joined to the heat transfer body 20 and the other end reaching the inside of the partition wall 65 and guides water flowing down the surface of the heat transfer body 20 into the partition wall 65. The flange 68 may be provided continuously to the tip side heat radiation fin 31.

  As shown in FIGS. 1, 2, 4, and 5, the snow melting device S includes a wheel 70 at the lower portion of the base 53 and a snow melting tank on the side of the heat transfer body 20 in the protruding direction 20 b. Casters 71 are provided on the bottom wall 11 of 10. Therefore, the snow melting device S itself is movable. In the figure, reference numeral 73 denotes a handle.

Therefore, as shown in FIG. 1 to FIG. 5, in order to melt the snow accumulated on the road or the like using this snow melting device S, for example, the drain 19 is first closed in advance, Water is accumulated in the snow melting tank 10 to some extent. In this state, the water suction pump 60 is operated, the burner 50 is ignited, and the heat transfer body 20 is heated.
At this time, the burner 50 is covered with the cylindrical body 55, and a flame comes out from the hole 56 provided in the cylindrical body 55, so that the flame spreads over the heat transfer body 20 evenly.

Then, snow is poured into the snow melting tank 10 from above the side plate 13 (b) of the snow melting tank 10 having a low height. At this time, since the height of the side plate 13 (b) is low, it is possible to easily put snow into the snow melting tank 10.
When snow is thrown into the snow melting tank 10, the snow is mainly placed on top of the heat transfer body 20.

At this time, in the snow melting tank 10, heat from the burner 50 is transmitted to the snow in the snow melting tank 10 through the heat transfer body 20, and the snow is melted. In this case, since the heat radiating fins 30 and the tip side heat radiating fins 31 are provided outside the heat transfer body 20, the surface area of the heat transfer body 20 is increased, and the heat transfer efficiency to snow can be improved.
Furthermore, since the snow-melting water W collected at the bottom of the snow-melting tank 10 is discharged from the top by the water discharge pipe 61 to the snow stored in the snow-melting tank 10 by the water suction pump 60, the water and the snow are heated. The snow melts by exchanging.

  Further, since the snow is provided on the side receiving surface 25 so that the side receiving surface 25 expands downward, it can be melted by the heat transfer body 20 and the radiation fins 30 while retaining the snow. . Furthermore, since the radiation fins 30 are arranged side by side in the vertical direction, heat can be uniformly transmitted to the snow on the side receiving surface 25 of the heat transfer body 20, and the melting efficiency of snow can be improved. .

In the top receiving surface 24, the top receiving surface 24 is inclined so as to descend from the protruding direction base end 20a of the heat transfer body 20 toward the tip 20b, and the top receiving surface 24 has a cross section at the top. Since it forms so that it may become a refracted linear form, the snowmelt water W which contact | connects the top receiving surface 24 becomes easy to flow on the top receiving surface 24. FIG. Accordingly, the snow melt water W flows without staying on the top receiving surface 24 and is easily separated from the heat transfer body 20 before the snow melt water W is vaporized, so that the snow melt water W is transmitted from the burner 50 when the snow melt water W is vaporized. The latent heat is not easily taken away, and the melting efficiency of snow can be improved.

Further, on the side receiving surface 25 and the front end side receiving surface 27, the snowmelt water W is received by the receiving surfaces 30 a and 31 a of the radiating fin 30 and the front end side radiating fin 31.
In this case, since the receiving surface 30a of the radiating fin 30 is inclined, the snowmelt water W on the receiving surface 30a of the radiating fin 30 flows on the receiving surface 30a and flows down from the heat transfer body 20 and falls into the snow melting tank. 10 at the bottom. Moreover, since the receiving surface 31a is inclined also in the front end side radiation fin 31, the snowmelt water W on the receiving surface 31a of the front end side radiation fin 31 flows on this receiving surface 31a, and the heat transfer body 20 is carried out. From the bottom of the snow melting tank 10.
As a result, the snowmelt water W flows on the receiving surfaces 30a and 31a without staying on the receiving surfaces 30a and 31a, and the snowmelt water W is easily separated from the heat transfer body 20 before the snowmelt water W is vaporized. When the snowmelt water W is vaporized, the latent heat transmitted from the burner 50 is less likely to be taken away, and the melting efficiency of snow can be improved.

  The snow on the heat transfer body 20 is also melted by the exhaust of the burner 50 from the exhaust port 40. At this time, the exhaust port 40 is provided directly below the heat radiating fins 30, and the snow melt water W flowing down the surface of the heat transfer body 20 is blocked to some extent by the heat radiating fins 30 and the tip side heat radiating fins 31. It becomes difficult to block 40, and the situation where the heating of the heat transfer body 20 by the burner 50 is adversely affected can be prevented.

Further, the snow receiving plate 35 receives a part of the snow that has fallen on the snow receiving plate 35 from the side receiving surface 25 or a part of the snow that has been thrown in directly from the opening 14 of the snow melting tank 10. Since the heat from the heat transfer body 20 is transmitted to the snow receiving plate 35 and the exhaust from the outlet 28 is blown and heated, the snow on the snow receiving plate 35 is also melted. In this case, since the snow receiving plate 35 is inclined from the base end 20a in the protruding direction of the heat transfer body 20 toward the distal end 20b, the snowmelt water W flows on the snow receiving plate 35 and is vaporized. The snow melting water W is easily separated from the snow receiving plate 35, and the latent heat transmitted from the burner 50 when the snow melting water W is vaporized is less likely to be taken away, so that the melting efficiency of snow can be improved.
Further, exhaust is blown out from the passage opening 36 opened in the snow receiving plate 35, and warm exhaust is sprayed on the snow, so that the snow on the snow receiving plate 35 is heated by this exhaust. Therefore, the melting efficiency of snow can be improved.

  Furthermore, since the snow receiving plate 35 is provided, the exhaust from the burner 50 is easily trapped below the snow receiving plate 35. Therefore, the exhaust from the burner 50 can be effectively used for heating in the snow melting tank 10.

  On the other hand, the snow that falls on the snow receiving plate 35 or slides off from the other end side plate body 23 and falls to the bottom of the snow melting tank 10 is immersed in the snow melting water W collected at the bottom of the snow melting tank 10. Melting snow.

In this case, the snowmelt water W accumulated in the snowmelt tank 10 is stirred by the snowmelt water W discharged from the stirring pipe 63 to cause convection of the snowmelt water W. Therefore, the heat exchange efficiency between snow and water at the bottom of the snow melting tank 10 is improved, and the melting efficiency of snow is improved. Furthermore, since the heat of the heat transfer body 20 is heat-exchanged with the snowmelt water W in the snowmelt tank 10 by the heat radiating plate 26, the snowmelt water W in the snowmelt tank 10 is heated, and accordingly, The melting efficiency of the snow immersed in the snowmelt water W can be improved.
Further, since water from the ridge 68 flows into the partition wall 65, the water sucked by the water suction pump 60 becomes warm even a little. Thereby, since the water discharged to the snow in the snow melting tank 10 or the water which stirs the inside of the snow melting tank 10 is somewhat warmed, the improvement of the melting efficiency of snow can be expected.

And if the snowmelt water W increases in the snowmelt tank 10 and the snowmelt water W at the bottom in the snowmelt tank 10 accumulates a certain amount or more, it is naturally flowed from the drain port 17 to the outside of the snowmelt tank 10. The snow melt water W can be sprinkled on the road or the like to melt the snow on the road.
Furthermore, foreign matter such as dust on the road is thrown into the snow melting tank 10 together with snow, and it accumulates in the vicinity of the bottom wall 11 of the snow melting tank 10 as the snow melts. Since the snowmelt water W in 10 enters the inside of the partition wall 65 from the communication hole 66, the foreign matter near the bottom wall 11 is blocked by the partition wall 65 and becomes difficult to enter the inside of the partition wall 65. It is possible to prevent the situation where the system becomes unable to operate.

  When the snow melting work is finished, the flame of the burner 50 is extinguished. Then, the drain 19 is opened, and the snowmelt water W collected at the bottom of the snowmelt tank 10 is discharged to the outside of the snowmelt tank 10 together with foreign substances. When the water in the snow melting tank 10 is exhausted, the snow melting device S can be easily moved.

1 is a perspective view showing a snow melting device according to an embodiment of the present invention with a part cut away. 1 is a perspective view showing a snow melting device according to an embodiment of the present invention. It is a top view which shows the snow melting apparatus which concerns on embodiment of this invention. It is a longitudinal section showing a snow melting device concerning an embodiment of the invention. 1 is a lateral perspective view showing a snow melting device according to an embodiment of the present invention. It is a perspective view which shows the cylinder of the snow melting apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the conventional snow melting apparatus.

Explanation of symbols

S Snow Melting Device W Water 10 Snow Melting Tank 11 Bottom Wall 12 Side Wall 13 Side Plate 14 Opening 17 Drainage Port 19 Drain 20 Heat Transfer Body 21 Upper Plate Body 22 Lower Plate Body 23 Tip Side Plate Body 24 Top Side Reception Surface 25 Side Reception Surface 26 Heat Dissipation Plate 28 Outlet 30 Radiation fin 30a Receiving surface 31 Tip side radiation fin 31a Receiving surface 35 Snow receiving plate 36 Passage port 40 Exhaust port 50 Burner 60 Water suction pump 61 Discharge pipe 62 Discharge port 63 Stirring pipe 65 Bulkhead 68 樋

Claims (15)

A snow melting tank having a bottom wall and a side wall standing upright from the bottom wall, into which snow is introduced from an opening formed by the side wall, and projecting on the side wall of the snow melting tank to transfer heat to the snow in the snow melting tank In a snow melting device comprising a heat transfer body that melts snow and a burner that is provided inside the heat transfer body and heats the heat transfer body,
A plurality of elongated plate-like radiating fins having a receiving surface capable of receiving snowmelt water flowing down the outside of the heat transfer body along the protruding direction of the heat transfer body is provided on the outside of the heat transfer body,
A snow melting device characterized in that the receiving surface of the heat dissipating fin is inclined so that snow melting water on the receiving surface of the heat dissipating fin flows from the base end in the protruding direction of the heat transfer body toward the front end. The heat transfer body is extended downward to the upper side plate that covers the upper side of the burner, the lower plate that covers the lower side of the burner, and the tip side of the upper plate in the protruding direction of the heat transfer body. A front end side plate body provided,
The upper plate body has a top receiving surface that can receive snow introduced from the opening of the snow melting tank, and a side receiving surface that expands downward on both sides of the top receiving surface,
2. The snow melting device according to claim 1, wherein the heat dissipating fins are vertically arranged on a side receiving surface of the upper plate.   3. The snow melting apparatus according to claim 2, wherein the top receiving surface is inclined so as to descend from the base end in the projecting direction of the heat transfer body toward the front end. 4. The snow melting device according to claim 2, wherein the top receiving surface is formed so that a cross section thereof is a line refracted at the top .   The tip side plate body has a tip side receiving surface that is inclined from the base end in the projecting direction of the heat transfer body toward the tip, and the snow melting that flows down the outside of the heat transfer body to the tip side receiving surface. An elongated plate-shaped tip-side radiation fin having a receiving surface capable of receiving water is provided, and the receiving surface of the tip-side radiation fin is inclined so that the snowmelt water on the receiving surface of the tip-side radiation fin flows down. The snow melting apparatus according to claim 2, 3 or 4.   A snow receiving plate for receiving snow is erected between the side portion of the heat transfer body in the protruding direction and the side wall of the snow melting tank, and the snow receiving plate is directed from the proximal end to the distal end in the protruding direction of the heat transfer body 6. The snow melting device according to claim 1, wherein the snow melting device is inclined.   The snow melting device according to claim 6, wherein an outflow port through which exhaust from the burner flows out toward a lower surface of the snow receiving plate is formed in a side portion of the heat transfer body.   The snow melting device according to claim 7, wherein a plurality of passage openings through which the exhaust from the outlet passes are formed in the snow receiving plate.   A drainage port for discharging the snowmelt water is provided at a position on the side wall of the snowmelt tank, a predetermined height away from the bottom wall of the snowmelt tank. The snow melting device according to 5, 6, 7 or 8. In the snow melting tank, a water suction pump for sucking snow melting water accumulated below the discharge port is provided,
10. The snow melting apparatus according to claim 9, wherein a water discharge pipe for discharging the snow melt water toward the snow introduced into the snow melting tank is connected to the water suction pump. In the snow melting tank, a water suction pump for sucking snow melting water accumulated below the discharge port is provided,
10. The water suction pump is connected to a stirring pipe that discharges the snow melting water sucked from the water suction pump into the snow melting water in the snow melting tank and stirs the snow melting water in the snow melting tank. Or the snow melting apparatus of 10.   The snow melting melt according to claim 10 or 11, wherein a partition wall is provided to cover the water suction pump, and a communication hole through which the snow melting water passes is provided at a predetermined height away from the bottom wall of the snow melting tank of the partition wall. apparatus.   13. The snow melting as claimed in claim 12, wherein one end is joined to the heat transfer body and the other end reaches the inside of the partition wall, and a trough is provided to guide water flowing down the surface of the heat transfer body into the partition wall. apparatus.   A heat radiating plate is provided below the heat transfer body to transfer heat of the heat transfer body to water accumulated at the bottom of the snow melting tank. The snow melting device according to 6, 7, 8, 9, 10, 11, 12, or 13.   A number of exhaust ports through which exhaust from the burner is exhausted are provided in the heat transfer body, and the exhaust ports are provided directly below the heat radiating fins. , 6, 7, 8, 9, 10, 11, 12, 13 or 14.

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