JP2002309802A - Equipment for snow removal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment for snow removal blowing off snow by strong low-temperature air while blowing off snow, instantaneously melting snow and changing it into a liquid before snow falling on a roof and a road surface cumulates. SOLUTION: The equipment for snow removal is composed of an air blowoff duct 2 installed in parallel with the surface of the roof 1 in the same direction as the ridge beam and purlin of the roof 1, a blast duct 3 being connected to the duct 2 and transferring low-temperature air, an air blower 5 connected to the duct 3 through an electric damper 4, an attic duct 6 branched from the air blower 5 and piped in an attic space, a branched chamber 7 connected to the duct 6 and mounted on the lower section of a pole plate, a suction duct 10 for an indoor section being connected to the branched chamber 7 and having a suction duct 9 for an attic having a suction grille 8 in the attic space in the vicinity of the pole plate and the suction grille 8 in a staircase ceiling in the indoor section, an auxiliary heating duct 11 branched from the air blower 5 and piped along the exterior wall surface of a building, and an auxiliary boiler 12 connected to the duct 11 and secured in the indoor section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow removing device that can blow off snow with strong low-temperature air before the snow is deposited.

[0002]

2. Description of the Related Art Conventionally, as a method of melting snow accumulated on a roof of a house or a sidewalk of a road, a method of melting an accumulated snow by circulating an electric heater or hot water has been generally put into practical use.
Roof heaters that use electricity or boilers cannot melt the snow on top of the roof slab unless the roof slab is heated, and react in real-time to even a small amount of snow or whimsical snow. Because the start-up is poor, the vehicle is often driven more than necessary, causing a large energy loss. Furthermore, to melt the snow once accumulated, the latent heat (characteristic) of the snow is 80 cal /
Since there is g, snow (individual) turns into liquid only after the latent heat is removed, requiring enormous heat energy. Therefore, these systems have high initial costs and running costs, and are not widely used. Also,
The method of sending warm air to heat the attic to extinguish it or blowing hot air directly on snow has been considered in the past. JP-A-11-
As described in Japanese Patent Publication No. 125029, in order to heat the attic with warm air, it is necessary to melt the snow on the roof if the roof structure is complicated and the roof plate and the metal plate thereon are not heated in terms of thermal efficiency. Since it is impossible, the thermal efficiency is remarkably poor and it has not been put to practical use. Japanese Patent Application Laid-Open Nos. Hei 10-8773 and Hei 6-26242 disclose a method of blowing hot air directly onto snow on a roof to melt snow.
This method requires a complicated roof structure, and construction work is difficult except for high construction costs and new houses.

[0003]

SUMMARY OF THE INVENTION Therefore, the present invention blows off snow with strong low-temperature air before the snow falls on a roof or a road surface, instantaneously melts the snow and converts it into a liquid. It is an object of the present invention to provide a snow removing device that can be blown off while being blown.

[0004]

To this end, a snow removing apparatus according to the present invention is provided with an air outlet duct installed on a roof surface in parallel with a roof girder or purlin, and connected to the air outlet duct. A blower duct for transferring low-temperature air through the blower, a blower connected to the blower duct via an electric damper, an attic duct branched from the blower and piped to an attic space, and connected to the attic duct, And a branch chamber installed below, a suction duct for an attic with a suction grill in the attic space near the eaves girder connected to the branch chamber, and an indoor suction duct with a suction grill on the ceiling of the indoor staircase. An auxiliary heating duct branched from the blower and piped along the outer wall surface of the house, and an auxiliary boiler connected to the auxiliary heating duct and installed indoors. It is intended. Further, the air blowing duct has a rectangular outer frame, and has an L-shaped duct inside air outlet having an air intake connected to the air blowing duct, and an elongated shape formed on a bottom surface of the air blowing duct. A belt laid so as to close the air outlet slit, an outlet moving roller that is disposed at a predetermined height so as to lift the belt, and winds the belt so as to be movable in the air outlet duct in the longitudinal direction, A gate-shaped frame that rotatably supports the outlet moving roller and a wire fixed before and after the gate-shaped frame are installed so as to be windable at both ends of the air blowing duct. And a winding motor that drives the wire winding machine. Furthermore, on the upper part of the gate-shaped frame, the outlet moving roller is rotatably supported and wound around the outlet moving roller so as to lift the laid belt, while the lower part of the frame is Is provided with a rotatable pressing roller, and presses the belt with a pressing roller before and after in the traveling direction of the outlet moving roller, and forms a triangular or square air flow passage on the side of the belt with the outlet moving roller and the pressing roller. Is what you do.

[0005]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the snow blower of the present invention has an air blow duct 2 installed in parallel to the roof 1 surface in the same direction as the ridge girder and purlin girder of the roof 1, and is connected to the air blow duct 2. A blower duct 3 for transferring low-temperature air, a blower 5 connected to the blower duct 3 via an electric damper 4,
An attic duct 6 branched from the blower 5 and piped into the attic space, a branch chamber 7 connected to the attic duct 6 and installed below the eaves girder, and connected to the branch chamber 7 and near the eaves girder Attic suction duct 9 with suction grille 8 in the attic space and indoor suction duct 10 with suction grille 8 on the indoor staircase ceiling, branching from the blower 5 and piping along the outer wall of the house And an auxiliary boiler 12 connected to the auxiliary heating duct 11 and installed indoors. On the top of the roof 1, an electric shutter 1
3 is provided to control the opening and closing of the blow duct 3 and the air blow duct 2 so that cold air does not flow backward when not in use. In FIG. 1, the electric damper 4, the blower 5, and the auxiliary heating duct 11 are shown installed outdoors. However, the present invention is not limited to this, and the electric damper 4, the blower 5 is arranged in an attic space, and the auxiliary heating duct 11 Can be piped along the indoor wall.

The air outlet duct 2 is shown in FIGS.
As shown in FIG. 2, an air outlet 16 in the duct, which has a rectangular outer frame 14 and has an air inlet 15 connected to the air duct 3, and an air outlet formed in an elongated shape on the bottom surface of the air outlet duct 2. A belt 18 laid so as to cover the slit 17, and an outlet moving roller which is disposed at a predetermined height so as to lift the belt 18 and winds the belt 18 movably in the air outlet duct 2 in the longitudinal direction. 19, a gate-shaped frame 20 rotatably supporting the outlet moving roller 19, and the air blow-out duct 2 so as to wind up a wire 21 fixed before and after the gate-shaped frame 20. And a winding motor 23 for driving the wire winding machine 22 installed at both ends of the wire winding machine.

[0007] As shown in FIGS.
In the upper part of the main frame 2, the outlet port moving roller 19 is rotatably supported and wound around the outlet port moving roller 19 so as to lift the laid belt 18.
0, a rotatable holding roller 24 is provided to hold the belt 18 with the holding roller 24 before and after in the traveling direction of the outlet moving roller 19, and the belt 18 is held by the outlet moving roller 19 and the holding roller 24. A triangular or square air flow passage 25 is formed on the side. An air outlet slit 17 is integrally formed on the bottom surface of the air outlet duct 2 to form a conduit 26 in the longitudinal direction. The conduit 26 has an air outlet guide plate 2 for guiding air.
7 are provided with air outlets 28 provided at equal intervals in the transverse direction. As shown in FIG. 1, a snow sensor 29 is provided on the surface of the roof 1 to drive and control the blower 5 and the winding motor 23.

Next, the operation of the snow removal apparatus of the present invention will be described with reference to the drawings. When the snowfall sensor 29 on the surface of the roof 1 detects that snow has fallen, the blower 5 is driven to transfer low-temperature air from the attic or the staircase via the attic duct 6, and the low-temperature air is blown from the air duct 3 to the air outlet duct. 2
Transfer to As shown in FIG. 1, when the temperature of the attic is low by the temperature sensor 30 installed on the attic, the temperature sensor 30 detects
To operate the auxiliary boiler 12 to generate low-temperature air, which is transferred to the air blowing duct 2 through the auxiliary heating duct 11 in the same manner as described above. In this way, the low-temperature air transferred to the air blowing duct 2 is sent from the air inlet 15 to the air outlet 16 in the duct, and the space in the air blowing duct 2 is filled with the low-temperature air. The air blow guide plate 27 of the air blow slit 17 passes through a triangular or square air flow passage 25 formed by
Low-temperature wind gushes along. At the same time, by rotating one of the winding motors 23 in the wire winding direction and rotating the other winding motor 23 in the wire rewinding direction, the pressing roller
While holding down, the outlet moving roller 19 around which the belt 18 is wound moves while rotating, and the gate-shaped frame 20 moves in the wire winding direction. Along with this movement, the triangular or quadrangular air flow passage 25 moves, whereby low-temperature air is sequentially blown out along the air blowing guide plate 27 of the air blowing slit 17. Further, when reaching one end of the air blowing duct 2, each winding motor 23 rotates in the reverse direction and the triangular or square air flow passage 25 moves in the reverse direction in the same manner as described above. Low-temperature air is blown out along the air blowing guide plate 27. By repeating this operation,
The snow that has fallen on the roof 1 is blown off, and at the same time, is melted by a low-temperature wind and turned into a liquid to be blown off.

A long air blowing slit 17 is formed in the bottom surface of the air blowing duct 2, a belt 18 is laid on the air blowing slit 17, and an air outlet moving roller 19 is formed under the belt 18 so as to form a gap. , And by moving the outlet moving roller 19, low-temperature air blows out from the gap of the outlet moving roller 19 in which the sent air moves, and the speed of the blown air is changed by the air outlet 28 every second. 40m, air outlet 28
A wind speed of 8 m is desirable 3 m ahead. The driving device such as the wire winder 22 in the air blowing duct 2
Since it is often used in severe cold regions, it is necessary to blow air of 10 ° C. or more in order to avoid troubles such as freezing of this drive device. When air at 7 to 15 ° C. is blown on snow at a wind speed of 8 to 20 m, heat energy penetrates deep into the snow, causing a phenomenon in which water droplets blow off while melting the snow quickly. Especially 10m or more and wind speed 10m
When air is blown on the falling snow, the snow melts instantaneously and becomes water droplets, which can be blown off the roof 1. If 200 liters of snow at the start of falling is converted to liquid, it will be about 1/100 of 2 liters.
No further processing is required. In addition, there is also an effect of quickly erasing the accumulated snow while reaching a distant place due to the wind speed due to the wind speed. Air with a temperature of 10 ° C or higher can be used to collect warm air accumulated in the attic of the building or to use the auxiliary boiler 1
In step 2, warm air is produced and blown out by the blower 5. When the temperature of the air in the attic is low, the temperature sensor 30 detects the temperature and the auxiliary boiler 12 is activated.

[0010] The conduit 26 of the air blowing duct 2 of the snow removing device.
As shown in FIGS. 2 and 3, by attaching an air blowing guide plate 27 to the air blowing port 28, it becomes possible to blow air intensely in any direction. In the case of a wide roof 1, the number of the air blowing ducts 2 is increased according to the size of the snow removing device, and the air blowing is switched by the electric damper 4 and the electric shutter 13. A powerful blower 5 is required to blow off the entire surface of the wide roof 1. However, if the number of air outlets 28 for air is a minimum number (one to several places), the necessary wind speed can be obtained even with a small blower 5, so that The smallest air outlet 28 itself (flow passage 25) is moved to cover one wide roof. This snow removing device is effective for preventing snow accumulation on road surfaces other than the roof 1. In addition, the snow removal location can be used for solar panels other than buildings.

[0011]

[Effect] The snow removal device of the present invention collects heat previously thrown away in the attic or ceiling, blows it off with low-temperature wind before stacking snow that has fallen on the roof, and simply turns the electric motor. Requires little energy. Furthermore, compared to the conventional system, the initial cost is reduced from 1/3 to 1
/ 5, the running cost can be reduced from 1/5 to 1/10.
In addition, since the snowfall sensor detects the falling snow and drives in real time, the loss drive is eliminated, which is also a significant effect in suppressing the running cost. Further, the snow removing device of the present invention can be used as it is on a road surface other than a roof.

[Brief description of the drawings]

FIG. 1 is a front view of a snow removing device according to the present invention.

FIG. 2 is a front view of the air blowing duct of the present invention.

FIG. 3 is a plan view of the air outlet duct of the present invention.

FIG. 4 is a cross-sectional view of the air blowing duct of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof 2 Air blow-off duct 3 Air blow duct 4 Electric damper 5 Blower 6 Attic duct 7 Branch chamber 8 Suction grill 9 Attic suction duct 10 Indoor suction duct 11 Auxiliary heating duct 12 Auxiliary boiler 13 Electric shutter 14 Outer frame 15 Air intake Reference Signs List 16 air outlet in duct 17 air outlet slit 18 belt 19 air outlet moving roller 20 frame 21 wire 22 wire winder 23 winding motor 24 holding roller 25 flow passage 26 conduit 27 air outlet guide plate 28 air outlet 29 snow Sensor 30 Temperature sensor 31 Controller

Claims (3)

[Claims] 1. An air blower duct installed on a roof surface in parallel with a girder direction, a blower duct connected to the air blower duct to transfer low-temperature air, a blower connected to the blower duct, and the blower And an attic duct connected to the attic duct, and an attic suction duct with a suction grill in the attic space and an indoor suction duct with a suction grill on the indoor ceiling,
A snow removal device comprising: an auxiliary heating duct branched from the blower and piped along a wall of a house; and an auxiliary boiler connected to the auxiliary heating duct. 2. The air outlet duct, a belt laid so as to cover an elongated air outlet slit formed on a bottom surface of the air outlet duct, and a belt disposed at a predetermined height to lift the belt, An outlet moving roller having a belt wound around the air outlet duct so as to be movable in the longitudinal direction, a frame that rotatably supports the outlet moving roller, and a wire fixed before and after the frame. 2. A wire winding machine installed at both ends of the air blowing duct so as to be able to be wound to take up, and a winding motor for driving the wire winding machine are built-in. The snow removal device as described. 3. An upper part of the frame body is rotatably supported on the outlet moving roller, and is wound around the outlet moving roller so as to lift a laid belt, while a lower part of the frame is Providing a rotatable pressing roller, pressing the belt with a pressing roller before and after in the traveling direction of the outlet moving roller, and forming an air flow path on the side of the belt with the outlet moving roller and the pressing roller. The snow removing device according to claim 1 or 2, wherein