JPH10317347A - Snow melting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the contact area with the inserted snow and facilitate manufacture by providing a recessed first shape steel train and a second shape steel train on the roof of a furnace body, providing gaps between the first and second shape steels, and forming ventilation paths of hot air in the furnace body. SOLUTION: An opening/closing cover is opened, snow is inserted into a snow melting tank, a duct is interlockingly erected, and combustion air is guided into an engine room from above a furnace body 3. The high-temperature combustion gas discharged from a burner port is discharged into the furnace body 3 to heat the furnace body 3, and it is discharged to the outside from a hot-air passage formed on a roof 19. The snow inserted around the furnace body 3 is melted, and the combustion gas is uniformly and fully spouted from the hot-air passage formed along the ridge shape of the roof 19 to prevent immersion to the hotair passage. No effect is given to combustion by immersion, and the unnecessary retention of combustion heat and the abnormal overheat of the furnace body 3 is prevented. The surface area of the roof 19 is increased, the contact area with the inserted snow is increased with a simple structure, and snow melting device can be easily manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion-type snow melting apparatus, and more particularly to a snow melting apparatus in which snow accumulated on a road or a parking lot is thrown into a tank and melted.

[0002]

2. Description of the Related Art In this type of snow melting apparatus, it is generally desired that the furnace body has a uniform temperature distribution and an increased contact area with snow in order to prevent the furnace body from overheating. Therefore, it is required that the contact area with the snow put into the furnace body be as large as possible and that the combustion gas in the furnace body be blown out of the furnace body uniformly from the furnace body. There is a demand for a configuration that prevents the ingress of water. The intrusion of water causes incomplete combustion, and the unburned components of the fuel are contained in the wastewater, causing water pollution.

A conventional snow melting apparatus is disclosed in, for example, Japanese Patent Laid-Open No. 1-2
As disclosed in Japanese Patent No. 56612, a structure is provided in which a furnace body disposed in a snow melting tank is provided, and high-temperature combustion gas is sent from a combustion burner into the furnace body to melt snow put in the snow melting tank. It has become. This publication discloses a configuration in which a large number of combustion gas outlets for delivering combustion gas are formed at the upper part of a furnace body to melt snow put on the furnace body.

Japanese Patent Application Laid-Open No. 3-281807 discloses a snow melting plate in which a plurality of ridges arranged in a row are formed at the top of a furnace body, and ridges are formed on the ridges. Is disclosed.

[0005]

However, any of the above-mentioned conventional snow melting apparatuses is not sufficient in terms of the size of the contact area with the input snow, and can increase the contact area. Is desired. Also, in the structure of the furnace body, there is a problem that the structure becomes complicated because the furnace body itself is formed with irregularities. In particular, when the shape is complicated, a special mold is required, and thus there is a problem that the production is troublesome.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a snow melting apparatus which can increase the contact area with snow that has been thrown in and can be easily manufactured.

[0007]

Means for Solving the Problems In order to achieve the above object, an invention according to claim 1 comprises a combustor for supplying combustion gas, a furnace body to which combustion gas is supplied, and a furnace body. In a snow melting apparatus provided with a snow melting tank to be stored and a water outlet for discharging water collected in the snow melting tank, the furnace body is constituted by side walls and a roof, and the roof is formed by forming a concave-shaped first mold steel. The first mold steel row in which the open side of the dent faces upward and is arranged in parallel with a space therebetween, and the second mold steel of the concave strip is straddled between the first mold steel with the open side of the dent facing downward. A second mold steel row is provided, and a gap is provided between the second mold steel and the first mold steel to form a ventilation path for hot air in the furnace.

According to the first aspect of the present invention, the roof of the furnace body is formed such that concave and convex first and second mold steels are engaged with each other to form irregularities, thereby reducing the surface area of the roof. Because it is large, the contact area with the snow that has been thrown in is increased with a simple configuration. Moreover, since the roof is formed by alternately arranging the shape steels having the concave streaks, the structure is simple and the manufacture is easy.

According to a second aspect of the present invention, in the first aspect of the present invention, the side wall includes a support protrusion protrudingly provided on a roof side, and the support protrusion separates the second mold steel from the first mold steel. It is characterized by being supported at a position.

[0010] According to the second aspect of the present invention, the second mold steel is disposed so as to form a gap with respect to the first mold steel by the support protrusion formed on the side wall of the furnace body, and the first mold steel and the second mold steel are separated from each other. A hot air passage is formed between them. Therefore, the hot air passage can be formed uniformly over the entire roof along the shape steel.
Moreover, since there is no need to form a hole or a notch for the hot air passage, the configuration is simple, and the hot air passage can be formed only by mounting the second mold steel, so that the production is easy.

[0011] The invention described in claim 3 is the invention according to claim 1 or 2.
In the invention described in the above, the roof is a mountain shape inclined downward from the center toward both sides, and the first and second steel molds extend the concave streak along the ridge of the mountain shape. It is.

According to the third aspect of the present invention, since the shape of the entire roof is mountain-shaped, the snow that has entered falls from the roof, falls between the snow melting tank and the furnace body side wall, and easily contacts the furnace body side wall. . This further increases the contact area between the snow and the furnace body.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the second mold steel row is formed by integrally connecting adjacent second mold steels in parallel at an interval. Is characterized in that:

According to the fourth aspect of the present invention, since the plurality of second type steels are integrally formed in parallel, each second type steel can be arranged so as to straddle between the first type steels at a time. It is even easier.

According to a fifth aspect of the present invention, in the invention according to the fourth aspect, the integral structure of the second type steel is such that at least the tops of the chevron of the second type steel are connected to each other using a pipe material, and Is a shower pipe for melting snow.

According to the fifth aspect of the present invention, since the second type steel is integrated with a pipe and the pipe is also used as a shower pipe for melting snow, it is effective for downsizing the furnace body and reducing parts. .

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the shower pipe is provided with a fountain hole toward the recessed portion of the first type steel. is there.

According to the sixth aspect of the present invention, the fountain of the shower flows toward the concave portion of the first mold steel having a large heat load, which is effective for cooling the mold steel.

According to a seventh aspect of the present invention, in the third aspect of the invention, the second steel is longer than the first steel.

According to the present invention, the end of the second mold steel projects from the first mold steel to serve as an eave, thereby effectively preventing water from entering.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG.
An embodiment of the present invention will be described in detail with reference to FIG. As shown in FIGS. 5 and 6, a snow melting apparatus 1 according to an embodiment of the present invention includes a furnace body 3 in a box-shaped snow melting tank 7, and a combustor (not shown) in the furnace body 3. Burner opening 5a
Is open. The snow melting apparatus 1 is installed on the ground or buried in the ground, and has a configuration in which the open / close lid 10 is opened to put snow into the snow melting tank 7 when used, and the open / close lid 10 is closed when not in use. The snow melting apparatus 1 is divided into a machine room 13 in which a burner as a combustor and a water pump are arranged, and a snow melting tank 7 into which snow is put. The machine room 13 is closed by a lid 14 that can be opened and closed. .

In the snow melting tank 7, a furnace body 3 is placed at the center of the box shape, and a drain groove 11 is provided on one side thereof. The bottom of the snow melting tank 7 has a water level above a certain level. The accumulated water is drained from the drain pipe 12 through the drain groove 11. Water up to a certain water level (warm snow-melting water) is sent to a shower pipe 33 by a pump (not shown) provided in a machine room and is jetted out of the furnace body 3.

A combustion tube of a burner (not shown) is inserted into the burner port 5a, and a combustion gas (flame) is blown into the furnace body 3 arranged in the snow melting tank 7. As shown in FIG. 5, the lid 10 is provided with an air intake duct 17 communicating with the machine room 13, from which air for combustion is taken in from above the snow melting tank 7. .

As shown in FIGS. 1, 3 and 4, the furnace body 3 generally has a roof 19 and side walls 18, and the side walls 18 are substantially perpendicular to the bottom wall 16 (see FIG. 6). Erect,
The roof 19 has a mountain-shaped triangular shape as a whole. By making the roof into a mountain shape in this way, the snow thrown into the roof 19 slides down and can fill the space between the snow melting tank 7 and the side wall 18 of the furnace body 3, thereby preventing overheating of the furnace body and improving efficiency. Snow melting can be achieved.

The roof 19 is constituted by stacking a first type steel row 21 formed on the upper part of the furnace body 3 and a second type steel row 23 separate therefrom. That is, the first mold steel 2 is inserted into the upper opening of the furnace body 3.
5 are arranged at intervals S. The first mold steel 25 is fixed such that the tips of the pair of first mold steels 25 are obliquely butted against each other so that the central portion of the furnace body is higher from both sides so as to form a chevron. A projecting piece 18a projecting from the side wall 18 is formed integrally with the side wall between adjacent first mold steels 25, and the projecting piece 18a projects higher than the bent portion of the first mold steel 25. And supports a second mold steel 27 described later.

In the present embodiment, the first mold steel 25 and the second mold steel 27 are the same mold steel, and use light grooved steel (JIS standard SSC400). That is, since a general-purpose mold steel having a substantially U-shaped groove is used as it is, no processing is required, and the production is easy and inexpensive.
In addition, the material of the first mold steel 25 and the second mold steel 27 is not limited to this material, and the first mold steel 25 and the second mold steel 27 may be made of different materials. In addition, the number of the first mold steel 25 constituting the first mold steel row 21 is an odd number, that is, five in the present embodiment, and the number of the second mold steel 27 constituting the second mold steel row 23 is an even number, and in the present embodiment, it is four. Individual.

The first mold steel 25 is mounted at a position where the open side of the concave streak faces upward (upward), and the second mold steel 27 is mounted at a position where the open side of the concave streak faces downward (prone). It is arranged so as to straddle between the matching first mold steels 25 and close the space between the adjacent first mold steels 25.

In the present embodiment, as shown in FIG. 4, the second mold steel row 23 is formed by integrally connecting the second mold steels 27 with a connecting pipe 29 at intervals adjacent to each other.
Each second mold steel 27 can be put on the mold steel row 21 at a time and assembled.

As shown in FIG. 2, when the roof 19 is assembled, the first mold steel 25 and the second mold steel 27 are arranged at an interval T1 and T2 from each other, and the hot air which guides the combustion gas in the furnace to the outside. A passage 31 is formed. That is,
The second mold steel 27 is supported by the convex piece 18a so as to float away from the first mold steel 25 at an interval T1.
A hot air passage 31 meandering up and down is formed between the mold steel 25 and the second mold steel 27. With this configuration, intrusion of water can be effectively prevented. In other words, even if the lower part of the concave portion of the first section steel 25 is blocked by the snow that has been thrown in and the water accumulates into a dam, the water must pass through the hot air passage 31 to enter the furnace. No. Therefore, there is little opportunity for water to enter. In addition, in the cross section of the mold steel,
Due to the meandering of 1, a muffling effect (muffler effect) can be obtained using the sound of the blowout of the combustor and the combustion gas. The interval T1, which is the cross sectional area of the hot air passage 31, is about 10 mm in the present embodiment, but this interval T1 can be easily adjusted by changing the height of the convex piece 18a.

Further, since both the first and second mold steels 25 and 27 have a configuration in which the side edges are bent at 90 ° to form grooves, substantially vertical ribs are formed, and thermal deformation and casting are performed. It is strong against the impact of snow and can prevent deformation of the furnace body.

In this embodiment, the roof 19 is arranged so that the first mold steel 25 and the second mold steel 27 are alternately meshed with each other, and the unevenness is formed as a whole, so that the surface area of the roof can be increased. Since the contact area between the snow and the furnace body can be increased, the snow melting efficiency can be improved. Therefore, it is advantageous to prevent partial heating of the furnace, and also leads to an improvement in fuel efficiency.

Further, the first mold steel 25 and the second mold steel 27 are floated by the convex pieces 18a, so that the interval T1 between the tips of the bent ribs 25a and 27a forming the groove and the groove surface of the mold steel is reduced. , Since each has the same dimensions on the top and bottom,
The cross section of the hot air passage can be made uniform and can be formed along the entire shape of the roof along the concave section of the mold steel, thereby preventing suffocation of the hot air passage.

When manufacturing the furnace body 3 in the present embodiment, the side wall 18 having an open top is formed, and the first grooved steel 25 of the light grooved steel is arranged on the side wall 18 in parallel with a space therebetween, and at the center. Are arranged in a raised chevron to form a first type steel row 19 as shown in FIG. Next, as shown in FIG. 4, the second mold steel row 23 in which the second mold steel 27 has been integrally connected in advance.
, And put it on the first mold steel row 21. As described above, in the present embodiment, it is easy to manufacture simply by covering the second mold steel row 23, and the second mold steel row 23 can be lifted and removed, so that maintenance is also easy.

Next, the operation of the present embodiment will be described. When the snow melting apparatus 1 is used, as shown in FIGS. 5 and 6, the opening / closing lid 10 is opened, and snow is put into the snow melting tank 7. Open / close lid 1
When 0 is opened, the duct 17 rises at the same time in conjunction with this opening, and air for combustion is taken into the machine room 13 from above the furnace body 3.

The high-temperature combustion gas released from the burner port 5a is released into the furnace body 3, and the released combustion gas (flame) fills the furnace body 3 to heat the furnace body 3. At the same time, the snow discharged from the hot air passage 31 formed in the roof 19 of the furnace body 3 to the outside and melted around the furnace body 3 is melted. The combustion gas is uniformly and sufficiently ejected from the hot air passage 31 formed along the mountain shape of the roof 19 of the furnace body, and the hot air passage 31 prevents water from entering as described above. Therefore, it does not adversely affect the combustion due to the intrusion of water, and in particular, prevents the pollution of the wastewater caused by the unburned state of the combustion gas. Further, since the cross-sectional areas of the hot air passages are substantially equal in the passages, exhaust resistance is small and unnecessary retention of combustion heat can be prevented, so that abnormal overheating of the furnace body is prevented.

The snow put around the furnace 3 is melted by the hot air from the hot air passage 31 and also melted by the heat of the furnace 3. Part of the snow on the roof 19 of the furnace body 3 along with the snowmelt water slides down along the mountain-shaped first mold steel and the second mold steel, and enters between the snowmelt tank 7 and the side wall 18 of the furnace body 3, and the furnace Since the entire periphery of the body 3 can be brought into contact with snow, deformation of the furnace body due to overheating is prevented. The water generated by the melting flows downward along the plate 21 of the furnace body 3,
The water collected at the bottom of the snow melting tank 7 is sent to the shower pipe 33 by a submersible pump, and is sprayed from the shower pipe 33 onto the furnace body 3. Since the temperature of the shower water is relatively high because it contains heat due to melting, it melts the snow in the snow melting tank 7, so that the snow melting function can be further improved. The shower water is supplied to the roof 1 of the furnace body 3.
9 is mainly cooled, so that even if snow is thrown, thermal damage to the furnace body due to poor cooling does not occur.

When a certain amount of water accumulates at the bottom of the snow melting tank 7, it flows to the drain 11 and is discharged from the drain pipe 12. Snow melting tank 7
At the bottom of the furnace, water accumulates at a certain water level, and the connecting portion 8 between the side wall 18 and the bottom wall 16 of the furnace body 3 is immersed in the stored water, so that the furnace body 3 can be sufficiently cooled and the furnace body is overheated. Deformation and damage can be prevented.

The present invention is not limited to the above-described embodiment, but can be variously modified without departing from the gist of the present invention.

For example, the same effect can be obtained even if the cross section of the concave section of the first and second section steels is not limited to the U-shaped section, but is a concave section such as an arc shape.

Although the connecting pipe 29 of the first type steel 25 is integrated using the connecting pipe 29 as shown in FIG. 7, the connecting pipe 29 is also used as a shower pipe. The cooling may be performed toward the ridges.

The present invention is not limited to the formation of the integrated second mold steel row 23 in which adjacent second mold steels 27 are connected in advance, but the second mold steels are arranged so as to straddle the adjacent first mold steels 25 one by one. You may.

The second type steel may be made longer than the first type steel as shown in FIG. 8, and the eaves 19a may be provided in the furnace body so as to reliably prevent water from entering the furnace body.

Further, the supporting convex piece 1 for supporting the second mold steel 27
8a is not limited to being formed on the side wall 18, but the first
It is not limited to providing the support projection 18a, but may be formed by projecting the rib 27a of the second mold steel 27 instead of the support projection 18a, or by forming the rib 27a.
Notches may be formed in a and 25a so that the hot air passages 28 are formed by the notches and supported by each other.

[0044]

According to the first aspect of the present invention, since the roof of the furnace body is made uneven by the first type steel and the second type steel to increase the surface area of the roof, the roof is put in. The area of contact with snow is increased with a simple configuration. Moreover, since the roof is formed by alternately arranging the shape steels having the concave streaks, the structure is simple and the manufacture is easy. Also,
Since the second mold steel having a small heat load is used as the outer surface, the appearance is less damaged.

According to the second aspect of the present invention, since the second mold steel is floated with respect to the first mold steel by the support projections formed on the side wall of the furnace body to form a hot air passage, the entire roof can be formed. Moreover, the hot air passage can be formed uniformly.
Moreover, since there is no need to form a hole or a notch for the hot air passage, the configuration is simple, and the hot air passage can be formed only by mounting the second mold steel, so that the production is easy.

According to the third aspect of the invention, since the shape of the entire roof is mountain-shaped, the snow that has entered falls from the roof and falls between the snowmelt tank and the furnace body side wall, and the snow falls on the furnace body side wall. Easy to contact. This further increases the contact area between the snow and the furnace body.

According to the fourth aspect of the present invention, since the plurality of second mold steels are integrally formed in parallel, each of the second mold steels can be arranged so as to straddle between the first mold steels at a time. Is even easier.

According to the fifth aspect of the present invention, since the second mold steel is integrated with a pipe and the pipe is also used as a shower pipe for melting snow, it is effective for downsizing the furnace body and reducing parts. is there.

According to the sixth aspect of the present invention, the fountain of the shower flows toward the concave portion of the first mold steel having a large heat load, which is effective for cooling the mold steel.

According to the seventh aspect of the present invention, the end of the second mold steel projects from the first mold steel to serve as an eave, thereby effectively preventing water from entering.

[0051]

[Brief description of the drawings]

FIG. 1 is a perspective view of a furnace body according to an embodiment of the present invention.

FIG. 2 is a sectional view of the roof shown in FIG.

FIG. 3 is a perspective view showing an attached state of a side wall of a furnace body and a first mold steel row.

FIG. 4 is a perspective view showing a second mold steel row.

FIG. 5 is a perspective view of a snow melting apparatus according to the present invention.

FIG. 6 shows a snow melting apparatus according to the embodiment of the present invention;
It is the longitudinal cross-sectional view cut | disconnected along the VI-VI line.

FIG. 7 is a perspective view of a furnace body according to another embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of the snow melting apparatus according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Snow melting apparatus 3 Furnace body 18 Side wall 18a Convex piece (support projection) 19 Roof 21 First type steel row 23 Second type steel row 25 First type steel 27 Second type steel 31 Hot air passage

Claims (7)

[Claims] 1. A combustor for supplying combustion gas, a furnace body to which combustion gas is supplied inside, a snowmelt tank containing the furnace body,
In a snow melting apparatus provided with a water distribution port for discharging water collected in a snow melting tank, the furnace body is constituted by a side wall and a roof, and the roof is formed by forming a concave first strip of steel into an open side of the recess. A first series of steel columns arranged side by side upward and spaced apart, and a second
A second mold steel row in which the mold steel is straddled between the first mold steels with the open side of the recess facing downward, and a gap is provided between the second mold steel and the first mold steel to provide hot air in the furnace body. A snow melting apparatus characterized by forming a ventilation path. 2. The side wall according to claim 1, wherein the side wall includes a support protrusion protruding from a roof, and the support protrusion supports the second mold steel at a position separated from the first mold steel. Snow melting equipment. 3. The roof according to claim 1, wherein the roof has a mountain shape inclined downward from the center toward both sides, and the first and second mold steels have a concave strip extending along the ridge of the mountain shape. 1
Or the snow melting apparatus according to 2. 4. The snowmelt according to claim 1, wherein the second type steel row has an integral structure in which adjacent second type steels are connected in parallel at intervals. apparatus. 5. The integral structure of the second mold steel is such that at least the tops of the chevron of the second mold steel are connected to each other using a pipe material,
The snow melting apparatus according to claim 4, wherein the pipe is a shower pipe for snow melting. 6. The snow melting apparatus according to claim 5, wherein a fountain hole is provided in the shower pipe toward the recessed portion of the first section steel. 7. The snow melting apparatus according to claim 3, wherein the second section steel is longer than the first section steel.