JP2538998Y2 - Snow melting equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground buried snow melting apparatus, and more particularly to a technique for improving snow melting efficiency by a burner thermal power and hot water blowing.

[0002]

2. Description of the Related Art In winter regions such as Hokkaido and the Tohoku region, it is necessary to remove snow and remove snow from roofs, entrances, and sidewalks in winter. Conventionally, these tasks were manually pushed by snow or loaded with snow.However, due to the recent structural changes in the local community, such as an increase in housing complexes and condominiums, an increase in the number of elderly people, and an increase in the working population. In many cases, snow removal in the neighboring area has not been sufficiently performed, and this has hindered the lives of those living nearby.

For this reason, various snow melting systems have been proposed in the past. However, in terms of cost, hot water (20 to
40 ° C) is most advantageous.
For the purpose of further reducing severe snow removal work, a so-called underground burial type in which snow is pushed into an underground burial tank and dropped is excellent.

[0004] As an underground buried snow melting apparatus, for example, there is a conventional one as shown in FIG. This is a snow melting tank 1 on the site
, While the snow opening 2 is opened in the upper part of the snow melting tank 1,
A plurality of shower devices 3 for discharging and spraying hot water are arranged at the upper edge of the snow melting tank 1, and hot water is supplied to the shower devices 3 from the boiler device 4. The water required for hot water supply is pumped up by pump 5 and driving pipe 6, and this ground water is supplied directly to boiler device 4 by guide pipe 7, or guide pipe 7 is introduced into snow melting tank 1 to feed water pump 8. To the boiler device 4 via the guide tube 9
To send to. On the other hand, the melted snow is pumped up by a drain pump 10 and sent to a drain 12 via a water pipe 11. still,
14 is a water pipe, 16 is a fence for preventing falling, 17 is an exhaust pipe, and 18 is a display panel. The reason for pumping groundwater with this device is to ensure a sufficient amount of warm water in the boiler device 4.

[0005] However, groundwater is not always readily available. Also, the easy use of groundwater pumping is incompatible with the recent social consciousness of environmental conservation.

For this reason, there has been proposed a snow melting apparatus for heating and reusing water obtained by melting snow (snow melting water) as shown in FIG. 8, for example. In this case, a heater device 23 and a shower device 24 are provided in a first snow melting room 20 and a second snow melting room 21 buried underground, respectively. The heater device 23 melts the snow dropped by the hot air sent from the adjacent burner device 25, and the melted water is pumped up by the pump 26, and is pumped and discharged from the shower device 24 to melt the remaining snow. . The temperature of the water accumulated in the first snow melting chamber 20 is kept relatively high by the snow melting by heating by the burner device 25. Reference numeral 28 denotes a drain groove.

[0007]

However, such a conventional snow melting apparatus has poor fuel efficiency and is not economically efficient.
If the heat source is driven without considering the fuel efficiency, the processing time can be reduced, but the fuel efficiency cannot be ignored as a daily system directly connected to daily life. Such a problem of the conventional apparatus was caused by a system configuration that relied on simple heating without considering snow melting conditions.

Therefore, an object of the present invention is to reduce the processing time under more efficient fuel consumption conditions.

[0009]

Means for Solving the Problems In order to achieve the object by achieving the above object, the snow melting apparatus according to the present invention includes a burner heating section defined by a metal panel at a lower portion inside a case body buried underground. In addition, a circulation path for the snowmelt water is provided through the burner heating section to the peripheral edge of the upper end of the case body, and hot water of the snowmelt is discharged toward the metal panel by a pump disposed in a part of the circulation path. Also the bar
Approximately U-shaped plane with metal panel divided at the center of heating section
A heating chamber is formed and the heating chamber is communicated with the heating chamber.
The heating path that wraps the hot air from the
Hot air that has been formed in the heating
Smoke conduit discharged outside the case body can exchange heat with snowmelt water
Draw out into the water storage tank and lay it out almost horizontally.
You.

[0010]

[Function] By providing a burner heating section defined by a metal panel in the lower part inside the case body buried underground,
The metal panel is heated by the burner flame and the heat of combustion, rapidly melting the snow dropped thereon. Burner
The inside of the heating part is roughly U-shaped when the center is divided by a metal panel.
The heating chamber is formed, and the heating chamber is communicated with the heating chamber.
The heating path for returning hot air from
It is formed in a thermal chamber. Therefore, the hot air from the burner
It is not guided to the exhaust path,
Wrap around the snow or snowmelt water
Heat exchange per minute. Exhaust air from the burner heating section passes through a smoke conduit.
Through the case. Smoke conduit stores snowmelt water
Out of the water storage tank and routed approximately horizontally.
Utilizes thermal energy contained in air to raise the temperature of snowmelt water
I can do it. Then, the snowmelt water is sent into the circulation path by the pump means.

Since the circulation path reaches the upper end periphery of the case body through the burner heating section, the snowmelt water is rapidly heated when passing through the burner heating section, and when reaching the upper end of the case body, it reaches a temperature suitable for snowmelt. Has reached. The temperature of the snowmelt water discharged from the upper end of the case body is a correlation between the length of the pipe passing through the burner heating section and the flow rate. Can be raised to high temperatures. When the high-temperature snow-melting water is discharged onto the snow on the metal panel, the snow melts rapidly due to heating from below by the metal panel and heating from above by the hot water, and returns to the circulation path again. The remaining melt that cannot be pumped is led out of the case body and drained.

[0012]

1 to 5 show an example of a snow melting apparatus according to the present invention. The snow melting apparatus 30 includes a case body 31 buried underground, and a heating chamber 32 formed of a steel plate below the inside of the case body 31. The interior of the heating chamber 32 is divided into two by a partition plate 33 to form a first heating chamber 32a and a second heating chamber 32b. The burner 34 is disposed outside the first heating chamber 34. Further, the heating chamber 32 is formed as an independent case body, and a space S is provided around and below the heating chamber 32. This is for increasing the contact area between the snow or the snow melting water and the heating chamber 32.

The heating chamber 32 has such a size as to occupy substantially half of the lower side of the case body 31 as shown in FIG. The remaining part other than the heating chamber 32 is a water storage tank 36 for storing snowmelt water. As shown in FIG. 5, the upper part of the water storage tank 36 has a grid panel 3 arranged at the same height as the heating chamber 32.
7. Therefore, the case body 31 is partitioned by the upper steel plate of the heating chamber 32 and the grid panel 37 at the height position of about half thereof, and the upper part becomes a snow storage tank 38 for receiving snow. The snow is discarded in the snow storage tank 38 occupying the upper half of the case body 31.

The water storage tank 36 occupies about half (up to 1/3) of the lower side of the case body 31. However, spatially, the snowmelt water flows around and below the heating chamber 32 ( 4), the volume is substantially the same as or larger than the heating chamber 32.

As shown in FIG. 2, a pipe 40 which is a circulation path of the snowmelt water is provided inside the heating chamber 32. One end 41 of the pipe 40 is opened to the water storage tank 36 , and circulates water into the heating chamber 32 via the pump 50. Since the snowmelt water is circulated by one pump 50, the pipe 40 is a single circulation path. However, in order to increase the length of the pipe in the heating chamber 32, the pipes are arranged in three rows on the left and right and three steps on the top and bottom. It is. In FIG.
The point indicated by is the introduction end of the heating chamber 32, and 40E
The portion indicated by is the sending end.

A pipe 40 extends from the sending end 40E.
Is guided around the upper end of the case body 31, and hot water is discharged downward from around the upper end of the case body 31. In FIG. 1, a portion indicated by reference numeral 42 is a discharge opening of hot water.

On the other hand, the hot air that has passed through the second heating chamber 32 b is discharged to the outside air through a smoke conduit 39 disposed through the water storage tank 36 . The point indicated by reference numeral 39E is the last terminal of the smoke conduit 39, which is erected and functions as a chimney. The smoke conduit 39 at the terminal portion is rotatably connected so as to be freely erected and inverted. At the time of the snow melting process, the smoke exhaust duct terminal 39E is erected to release the combustion exhaust gas to the outside air, and when not in use, it is stored by falling down as shown by the broken line in FIG.

An opening 44 for draining excess snowmelt water to the outside is provided at an appropriate portion of the water storage tank 36 . A drain pipe 45 may be connected to the opening 44 and the other end of the drain pipe 45 may be led to a drain port.

Next, the snow melting process using this apparatus will be described. Since the case body 31 is buried underground, a lid (not shown) is opened during processing, and snow is dropped on the case body 31. Although the burner 34 and the pump 50 are arranged in an independent space so that snow does not enter, it is necessary to supply oxygen to the burner 34. Therefore, before operating the burner 34, the lid of the storage room of the burner 34 must be opened. deep.

The dropped snow is stored in a snow storage tank 38 occupying the upper half of the case body 31. Here burner 34
Combustion hot air is blown out into the heating chamber 32 by the combustion of
The steel sheet forming the heating chamber 32 is heated, and the snow in contact with the upper panel of the steel sheet is rapidly melted. The melted snow (snow melt water) flows from the lattice panel 37 into the lower water storage tank 36 , reaches the height position of the pipe opening end 41 in a short time, and starts circulating through the pipe 40 via the pump 50. The snowmelt water sucked by the pump 50 is rapidly heated when passing through the pipes 40 of three rows on the left and right and three rows on the upper and lower sides arranged in the combustion chamber 32, reaches a water temperature of 10 to 15 ° C. The ink is discharged downward from the upper end peripheral opening 42 of the base 31. As a result, the snow is further melted by the warm water from above, and the amount of water stored in the water storage tank 36 is further accelerated.

Since the space S of the water storage tank 36 surrounds the lower side and the peripheral surface of the heating chamber 32, the increased snowmelt water comes into contact with the heated steel plate of the heating chamber 32 and raises the water temperature.
When the water thus heated begins to be sucked from the pipe opening end 41, the water temperature in the combustion chamber 32 rises further, and the water temperature discharged from the upper end peripheral opening 42 of the case body 31 becomes 15 to 20 ° C. Reach

As described above, the snow melting process rapidly proceeds by the direct heating from below and the discharge of warm water from above. Pump 5
There is a limit to the amount of hot water that can be discharged from above due to 0,
Since the excess snowmelt water escapes from the opening 44 to the drainage port through the drainage pipe, the amount of water in the water storage tank 36 is always constant.

The present device does not blow the combustion exhaust gas of the burner 34 onto snow. In terms of snowmelt efficiency only, blowing the combustion air onto the snow reduces the time compared to discharging it from the smoke conduit end 39E to the outside air, but the harmful components contained in the exhaust are mixed into the snowmelt water and drained. It is not preferable in terms of environmental maintenance. On the other hand, in the present device, instead of blowing hot air, a smoke conduit 39 is provided in the water storage tank 36 , and heat exchange between the stored water and the hot air is performed in this portion as well, so that heat loss hardly occurs. The exhaust temperature is at most about 100 ° C. By accelerating the rise in temperature of the stored water, the efficiency of snowmelt is increased, and it responds to recent demands for environmental conservation. In order to further reduce heat loss, it is possible to increase the length of the smoke conduit 39 provided in the water storage tank 36 (for example, to make one more round trip).

Incidentally, the circulation path arranged in the burner heating chamber is not necessarily limited to the three rows on the left and right and the three rows on the top and bottom. The number of arrangements can be appropriately increased or decreased according to the size of the case body, the material of the circulation pipe, and the like. Also, as shown in FIG.
May be spirally arranged. However, such a spiral arrangement generally uses a copper tube for convenience of molding, and is difficult in terms of heat resistance against a burner flame. Therefore, it is necessary to dispose the case at a certain distance from the burner outlet, which is not suitable for reducing the size of the case body.

The hot water discharge according to the present invention is not a so-called shower watering method. Shower watering is inefficient when melting snow. This is because snow melts quickly when a large amount of water is applied to one point, but in shower watering, it is absorbed in the crystal space of snow and an efficient snow melting phenomenon cannot be seen. Therefore, for example, in the case of the above-described embodiment, a nozzle for setting the discharge direction is provided in the discharge opening 42, and the hot water is discharged evenly to the snow storage tank. I have nothing. As for the direction of the nozzle, an upward and downward direction is combined for every other ejection opening 42, and a left and right combination is also performed as necessary.

In the present invention, a grid panel 37 is disposed above the water tank 36 . This is because the snow is thrown directly into the water tank 36
This is to prevent entry. When snow floats on water, it does not melt even when warm water is applied from above. It is desirable to completely separate the snow and the water. For this reason, the grid panel 37 is used to receive the snow and apply hot water from above.

In the above embodiment, the number of pumps is described as one. However, the number of pumps may be increased according to the size of the case body and the amount of snow melting processed. For example, when two pumps are provided, the number of circulation paths is increased to two. As a result, the number of discharge openings also increases, and the processing time can be reduced. The same applies to the number of burners. However, when the number of burners and the number of pumps are one as in the above-described embodiment, the failure occurrence rate is minimized, so that maintenance is easy and suitable for general household equipment.

[0028]

[Devised effect above snow melting apparatus according to the present invention as described is provided with a burner heating portion defining a metal panel on the inside bottom of the case body Rutotomoni, the upper end periphery of the case body through the burner heating unit Ru provided circulation path of the snow melting water throughout
On the other hand, approximately the center of the burner heating section is separated by a metal panel.
Forming a substantially U-shaped heating chamber in a plane and connecting the heating chambers,
The heating path for turning hot air from the burner
Hot air formed in the heater
Heat exchange with snow melting water
Since it was placed in the water storage tank and laid out in a substantially horizontal manner , the snow dropped into the case body melts quickly when heated from below by the burner heating unit and heated from above by hot water.
That is, according to the snow melting apparatus according to the present invention, it is possible to melt snow in a short time with high fuel efficiency without the need of supplying water from the outside and by performing the snow melting process from above and below with the burner heating and hot water.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically illustrating an example of the appearance of a snow melting device according to the present invention.

FIG. 2 is a plan view showing an example of a circulation path and a smoke conduit of the snow melting apparatus shown in FIG.

FIG. 3 is a view taken in the direction of the arrow III in FIG. 2;

FIG. 4 is a perspective view showing an example of a spatial relationship between a heating chamber and a water storage tank shown in FIG.

FIG. 5 is a diagram showing an example of a state in which a grid panel is arranged in a water storage tank in FIG. 4;

FIG. 6 is a view showing another embodiment of the circulation route according to the present invention.

FIG. 7 is a perspective view showing a conventional snow melting apparatus.

FIG. 8 is a perspective view showing a conventional snow melting apparatus.

[Explanation of symbols]

 Reference Signs List 30 snow melting device 31 case body 32 heating chamber 33 partition plate 34 burner 36 water storage tank 37 lattice panel 40, 60 pipe 42 water discharge opening 50 pump

Claims (1)

(57) [Scope of request for utility model registration] A burner heating section defined by a metal panel is provided at a lower portion inside a case body buried underground, and a circulation path of snowmelt water is provided through the burner heating section to a peripheral edge of an upper end of the case body. A snow melting apparatus for discharging snow-melting hot water toward the metal panel by a pump provided in a part of the circulation path, wherein a substantially central portion of the burner heating section is partitioned by the metal panel.
A heating chamber having a substantially U-shaped surface is formed and communicates with the heating chamber.
And the hot air from the burner wraps around
A passage is formed in the burner heating section, and the hot air that has passed through the heating path is discharged outside the case body.
Into the water tank so that it can exchange heat with snowmelt water.
A snow melting device, wherein the snow melting device is provided so as to be arranged substantially horizontally .