JP2004232271A - Hot blast snow melter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To melt snow while whirling up a snowfall and fallen snow by using a combustion burner using kerosene and gas as fuel, generating a high temperature hot blast in a force feed air body part of a high pressure type air blower, and blowing a high pressure hot blast of 200 degrees or more from a hot blast blowout nozzle at a high speed of an outlet wind speed of 30 m/sec or more. <P>SOLUTION: For this purpose, this hot blast snow melter melts the snowfall or the fallen snow by the hot blast, and is provided with the high pressure type air blower, and is provided with the burner and a combustion chamber for generating high temperature combustion gas by using the kerosene and the gas in the force feed air body part of the high pressure type air blower, and is provided with the hot blast blowout nozzle on the downstream side of the force feed air body part. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hot-air snow melting machine, in particular, uses kerosene or gas as fuel, and blows out high-pressure, high-temperature, high-speed hot air, has an immediate effect at the time of snow melting, and can easily melt even hard snow. It relates to a snow melting machine.
[0002]
[Prior art]
In a snowy country, it has been desired that the snow cover in the winter season cuts off transportation means, cuts off distribution, and binds living people indoors. As a snow removal measure, there is no problem in the case where humans are present.However, due to the aging of the population at present, there is a tendency to lack human resources. And the like, a snowmelt device and the like have been proposed.
[0003]
[Patent Document 1]
JP-A-55-81914 (page 1-2, FIG. 1-3)
[Patent Document 2]
JP 2000-186313 A (Page 2-4, FIG. 1-2)
[0004]
[Problems to be solved by the invention]
By the way, conventionally, in a snow melting machine using a combustion burner, a snow melting device disclosed in Japanese Patent Application Laid-Open No. 2000-186313 is known. In this snow melting apparatus, a heating tank by burner heating is provided on the ground, a snow melting tank and a road heating pipe are buried under the ground, and the heat exchange liquid heated in the heating tank is circulated in the load heating pipe. At the same time, the hot water for snow melting heated in the heating tank is circulated in the snow melting tank. At the same time, the harmful substances in the combustion gas are absorbed and removed.
[0005]
However, the above-mentioned snow melting apparatus indirectly melts snow by warming circulating water with a combustion burner, so it takes time to melt the snow, and since it does not directly use a combustion flame, it has no immediate effect. However, there is a disadvantage that thermal efficiency is low.
[0006]
As a portable snow melting machine, there is one disclosed in Japanese Patent Application Laid-Open No. 55-81914. The snow melting machine disclosed in this publication has a structure in which a plurality of burners are provided in front of a bogie, a fuel pump is rotated by the output of an engine, and a fan is simultaneously rotated as a means for supplying combustion air.
[0007]
In other words, snow is melted by equipping the trolley with a fuel tank and freely moving the snow melting machine to directly blow the combustion flame and the high-temperature combustion gas onto the target.
[0008]
However, in the snow melting machine described above, due to the combustion balance of the burner, the speed of the hot air cannot be increased, the snow cover cannot be sowed by the hot air blown out, the reach of the hot air is short, and the snow melting range is narrow. .
[0009]
As a result, there is a disadvantage that the snow must be melted from the ground surface or the surface of the snow wall, and the thermal efficiency is extremely low.
[0010]
Furthermore, a portable heater that disposes a blower fan in the rear part and sends out hot air forward has also been developed, but generally has a low blowing ability, and the hot air temperature is low even when hot air is directly blown on snow cover. In addition, since the speed of the hot air is low, there is an inconvenience that the snow melting effect is extremely low as in the case of the portable snow melting machine described above.
[0011]
For this reason, the present invention uses a combustion burner that uses kerosene or gas as a fuel, generates high-temperature hot air in a pressurized air body of a high-pressure blower, and outputs high-pressure hot air of 200 degrees or more from a hot-air blowing nozzle to an outlet wind speed. It is an object of the present invention to provide a portable hot-air snow melting machine that sprays at a high speed of 30 m / sec or more and melts snowfall and snow while rising.
[0012]
[Means for Solving the Problems]
Therefore, in order to eliminate the above-mentioned disadvantages, the present invention provides a high-pressure blower in a hot-air snow melting machine that melts snow or snowfall with hot air, and uses kerosene or gas in a pressurized air body of the high-pressure blower. A combustion chamber and a burner for generating high-temperature combustion gas, and a hot-air blowing nozzle is provided downstream of the compressed air body.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
By inventing as described above, kerosene or gas is used as fuel, the initial cost is reduced to about 1/5 to 1/10 as compared with electricity, and high-pressure hot air is used to immediately effect snow melting. By blowing hot air at high temperature and high speed, it is possible to melt even hard snow easily.
[0014]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0015]
1 and 2 show an embodiment of the present invention. In FIG. 1, reference numeral 2 denotes a hot-air snow melting machine.
[0016]
The hot-air snow melting machine 2 generates hot air using kerosene or gas as fuel, and melts the snow while sowing snowfall or snowfall.
[0017]
The hot-melting snow blower 2 is provided with a high-pressure blower 4 and a burner 8 and a combustion chamber 10 which generate high-temperature combustion gas using kerosene or gas in a pressurized air body 6 of the high-pressure blower 4. And a hot air blowing nozzle 12 is provided downstream of the compressed air body 6.
[0018]
Further, the hot-air snow melting machine 2 is mounted on a carriage 16 together with a fuel tank 14 communicating with the burner 8, so that it can be moved freely.
[0019]
More specifically, the hot-air snow melting machine 2 is mounted on a carriage 16 made of, for example, a pipe member.
[0020]
At this time, the carriage 16 includes a mounting portion 16-1 on which the hot-air snow melting machine 2 is mounted, a protection frame portion 16-2 provided on the front side (the right side in FIG. 1) of the mounting portion 16-1, and a mounting portion. A handle portion 16-3 is provided vertically behind the left side of FIG. 16-1 (left side in FIG. 1), and a wheel portion 16-4 provided on the rear side (left side in FIG. 1) and below the mounting portion 16-1. , A caster portion 16-5 provided at the front side (right side in FIG. 1) and at the bottom of the mounting portion 16-1 so as to be horizontally rotatable.
[0021]
When mounting the hot-air snow melting machine 2 on the carriage 16, the pressurized air cylinder 6 of the high-pressure blower 4 is placed at a central portion on the carriage 16, and the rear side of the compressed air cylinder 6. The high-pressure blower 4 is disposed (on the left side in FIG. 1), the control box 18 is disposed beside the high-pressure blower 4, and the fuel tank 14 is disposed below the control box 18.
[0022]
In addition, the burner 8 is disposed at a central portion in the compressed air cylinder 6, a combustion chamber 10 is provided downstream of the burner 8, and an outer peripheral portion of the combustion chamber 10 and the compressed air cylinder 6 are provided. A part of the air sent from the high-pressure blower 4 passes between the inner peripheral parts, and forms a cooling passage 20 for cooling the combustion chamber 10.
[0023]
Further, the hot air blowing nozzle 12 is mounted on the downstream side of the compressed air body 6 through a heat-resistant bent pipe 22. That is, as shown in FIG. 1, the upstream side, which is one end of the bent pipe 22, is attached to the downstream side of the compressed air body 6, and the bent pipe 22 is moved downward from the inside of the protection frame 16-2 of the cart 16. After passing through the protective frame portion 16-2, the curved portion is formed so as to be directed forward, and the downstream side, which is the other end of the bent tube 22, is attached to the hot air blowing nozzle 12.
[0024]
At this time, the hot air blowing nozzle 12 has a hot air blowing direction in a horizontal state and melts snow in a wide range, and is located at a height of 50 mm or less from the ground 24 to enable snow melting just before the cart 16. In addition, the diameter of the hot air blowing nozzle 12 is set to 75 mm in diameter based on experimental results in order to make the hot air velocity 30 m / sec or more.
[0025]
A small motor 26 and a link mechanism 28 are provided on the front side (the right side in FIG. 1) of the carriage 16, and the link mechanism 28 is provided so as to be connected to the bent pipe 22, and the link mechanism 28 is driven by the small motor 26. The tip of the bent tube 22, that is, the hot-air blowing nozzle 12 can be automatically swung through. In other words, the hot-air blowing nozzle 12 automatically swings on a horizontal plane, for example, within a range of an angle of 60 degrees.
[0026]
The control box 18 further includes a run / stop switch (not shown) for turning on / off the high-pressure blower 4 and an automatic swing switch (on / off) for turning on / off the automatic swing operation of the hot air blowing nozzle 12. (Not shown), a blower adjusting unit for adjusting the operation state of the high-pressure blower 4, a combustion adjusting unit for adjusting the combustion amount of the burner 8, and the like.
[0027]
Next, the operation will be described.
[0028]
First, the cart 16 is moved to an arbitrary place by pushing or pulling the handle portion 16-3 of the cart 16, and the operation / stop switch (not shown) of the control box 18 is turned on to turn on the high-pressure blower 4 Drive.
[0029]
Then, the driving operation of the high-pressure blower 4 rotates the high-pressure blower 4 to start blowing. After a lapse of a predetermined time, the burner 8 in the compressed air body 6 is ignited, and combustion is started in the combustion chamber 10, generating high-temperature hot air in the compressed air body 6 and passing through the curved pipe 22. High-pressure hot air of 200 degrees or more is blown from the hot-air blowing nozzle 12 at a high speed of 30 m / sec or more at the outlet wind speed.
[0030]
At this time, when an automatic swing switch (not shown) of the control box 18 is turned on, the hot air blowing nozzle 12 starts automatic swinging within a range of, for example, an angle of 60 degrees on a horizontal plane, and a fan-shaped fan is formed. It will melt the snow.
[0031]
When the automatic swing switch (not shown) is turned off, the automatic swing operation of the hot air blowing nozzle 12 is stopped, and the hot air blowing nozzle 12 is fixed.
[0032]
After the melting of the snow in a certain range is finished, the handle 16-3 of the carriage 16 is pushed forward to expand the snow melting range forward.
[0033]
As a result, kerosene or gas is used as fuel, so that the initial cost can be reduced to about 1/5 to 1/10 compared to electricity, which is economically advantageous and uses high-pressure hot air. Since it has an immediate effect at the time of snow melting and blows hot air at high temperature and high speed, it is possible to melt even hard snow easily, which is practically advantageous.
[0034]
In addition, when the snow melting is required, the hot air melting machine 2 can be moved to a necessary place and used, so that the snow melting effect is high, and when unnecessary, the hot air melting machine 2 can be easily stored. Is what you can do.
[0035]
Note that the present invention is not limited to the above-described embodiment, and various application modifications are possible.
[0036]
For example, in the embodiment of the present invention, the high-pressure hot air is blown out from the hot-air blowing nozzle directed forward. However, the downstream side of the high-pressure blower of the high-pressure blower of the hot-air snow melting machine and the hot-air blowing nozzle 12 May be specially configured to effectively use the bent tube 22 which becomes high in temperature.
[0037]
That is, the curved pipe 22 that connects the downstream side of the compressed air body 6 to the hot air blowing nozzle 12 has a high temperature when the high-pressure hot air passes through the inside.
[0038]
At this time, dissipating the heat of the high-temperature bent pipe 22 into the air can melt the snowfall around the bent pipe 22, but the heat is not effectively used. .
[0039]
For this reason, as shown in FIG. 3, a heat conductor 32 of a chain type, a rod shape, a plate shape, or the like is suspended from the bent tube 22 to the ground, and a part of the heat of the bent tube 22 is transferred to the ground via the heat conductor 32. And melting the ground, it is possible to effectively use the high-temperature bent pipe 22 and contribute to the improvement of the snow melting effect.
[0040]
In other words, in the extremely cold season, when the hot snow melting machine melts the snow and snowfall ahead, it remains as moisture on the ground, and this moisture may freeze in a short time, so the temperature becomes high as described above. This takes into account the fact that the frozen part is melted by the effective use of the bent pipe 22, and is extremely effective in securing the movable state of the bogie.
[0041]
Further, in the embodiment of the present invention, the high-pressure hot air is blown only from the hot air blowing nozzle directed forward, but a special structure in which the snow melting member 42 protruding forward from the hot air blowing nozzle 12 may be used. It is possible.
[0042]
That is, as shown in FIG. 4, for example, a rod-shaped snow melting member 42 made of a heat conductive material protruding forward by a predetermined length from the central portion of the hot air blowing nozzle 12 is provided.
[0043]
Then, the high-pressure hot air is blown forward from the hot-air blowing nozzle 12 to melt the snowfall and snow in front, and the hot-air blowing nozzle 12 retains the snow-melting function of the hot-air blowing nozzle 12. The high-temperature hot air blown out from the nozzle 12 causes the snow-melting member 42 at the central portion to be heated to a high temperature. For example, when there is an ice block which is extremely hard to melt compared to snowfall and snowfall, the snow-melting member 42 directly contacts the ice block and Then, the high-pressure hot air follows, and the heat is directly transmitted by the snow melting member 42, which can contribute to the improvement of the snow melting function.
[0044]
Further, when the high-pressure hot air is blown out from the hot-air blowing nozzle directed forward, the cross-sectional shape of the hot-air blowing nozzle is circular, but a special configuration with a triangular cross-section is also possible.
[0045]
In other words, in the case of snow, the lower part is squeezed by the weight from above, the density is large, and it is hard to melt, so the cross-sectional shape of the hot air blowing nozzle becomes a convex triangular cross-section It is assumed that.
[0046]
In this case, the hot air blowing nozzle having a triangular cross-section that is convex upward can effectively melt the snow as a snow-melting measure focusing on the lower part of the snow, which is practically advantageous.
[0047]
Furthermore, in the embodiment of the present invention, the high-pressure hot air is blown out only from the hot-air blowing nozzle directed forward, but a special structure may be adopted in which a part of the high-pressure hot air is supplied to other parts. It is.
[0048]
That is, a part of the high-pressure hot air is sent around the handle portion, wheels, and casters of the cart.
[0049]
Then, if a part of the high-pressure hot air is fed, for example, around the handle portion of the bogie, the front, rear, upper and lower portions of the handle portion will be warmed by the high-pressure hot air, and the high-pressure hot air will be applied to the front and upper portions of the handle portion. The air intake area and the control box of the air blower can be prevented from being covered by snowfall, and the area around the operator who operates the hot-air snowmelter becomes warmer at the rear and upper parts of the handle, improving the operating environment. .
[0050]
Also, if a part of the high-pressure hot air is fed around, for example, the wheels and casters of the bogie, the wheels and casters are heated, and the wheels and casters are fixed due to snowfall or icing of moisture. Can be prevented, and the movable state of the cart can be reliably ensured.
[0051]
【The invention's effect】
As described above in detail, according to the present invention, in a hot-air snow melting machine that melts snow or snowfall by hot air, a high-pressure air blower is provided, and high-temperature air is blown using kerosene or gas in a pressurized air body of the high-pressure air blower. A burner for generating combustion gas and a combustion chamber are provided, and a nozzle for blowing hot air is provided on the downstream side of the compressed air body, so that kerosene or gas is used as fuel. It can be reduced to about 5/10, which is economically advantageous and uses high-pressure hot air, so it has an immediate effect at the time of snow melting, and blows high-temperature, high-speed hot air, making it easy to use even hard snow It is practically advantageous.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a hot-air snow melting machine showing an embodiment of the present invention.
FIG. 2 is a schematic view of a lower portion of a truck of the hot-air snow melting machine.
FIG. 3 is an enlarged view of a main portion of a nozzle for blowing hot air and a bent tube portion showing another first embodiment of the present invention.
FIG. 4 is an enlarged perspective view of a main part of a nozzle for blowing hot air according to a second embodiment of the present invention.
[Explanation of symbols]
2 Hot Air Melting Machine 4 High Pressure Blower 6 Pressure Air Blower 8 Burner 10 Combustion Chamber 12 Hot Air Blowing Nozzle 14 Fuel Tank 16 Cart 16-1 Mount 16-2 Protective Frame 16-3 Handle 16-4 Wheel 16 -5 Caster section 18 Control box 20 Cooling passage 22 Bent pipe 24 Small motor 28 Link mechanism

Claims (2)

In a hot-air snow melting machine that melts snow or snowfall by hot air, a high-pressure blower is provided, and a burner and a combustion chamber that generate high-temperature combustion gas using kerosene or gas are provided in a pressurized air body of the high-pressure blower. A hot-air snow melting machine further comprising a hot-air blowing nozzle provided downstream of the compressed air body. The hot-air snow melting machine according to claim 1, wherein the hot-air snow melting machine is mounted on a carriage together with a fuel tank, and is movable.

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