JP2772661B2 - Snow melting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting apparatus capable of melting a large amount of snow in a short time and discharging the same even in a cold area having a low outside air temperature.

[Prior Art] Conventionally, a hot water storage tank is provided at the center, and a water storage tank shallower than the hot water storage tank is provided on both sides thereof at the bottom of a body whose upper part is opened so as to be in communication with each other. At the position, a hollow Rostor pipe with one end connected to the air supply pipe and the other end connected to the exhaust pipe was laid at many intervals and the heat absorbing material was filled in the upper part of the main body with the Rostor pipe as a boundary In the snow-melting chamber, the compartment is formed so as to be a combustion chamber with a number of burners opposed to the lower part, and the sprinkler pipe arranged in the upper part of the snow-melting chamber and the other end are connected to a hot water tank via an oil feed pump. A large amount of snow injected into the snow-melting room provided in the main body can be melted in a short time by the direct heating action of the burner's burning hot air and the spraying action of the hot water stored in the hot water storage tank. A possible snow melting apparatus is known before this application, for example, as described in Japanese Patent Publication No. 52-3865. .

[Problems to be Solved by the Invention] By the way, in the conventional snow melting apparatus of this type, the snow lump put into the snow melting chamber is sprayed from a sprinkling pipe provided in the upper part of the snow melting chamber. The dissolution was caused by the dissolving action of the hot and cold water and the dissolving action of the burning hot air blazing in the snow-melting chamber from the combustion chamber via the Rostor tube.

Therefore, the snow mass put into the snow-melting chamber is melted by the melting action, so that a hollow portion is partially formed, and the melting action progresses while the hollow portion gradually increases. Therefore, in the snow melting work, the snow on the upper surface must be manually broken by a shovel or the like from the snow melting room, and the snow must be dropped on the roster so that the cavity is eliminated, and then fresh snow must be input. However, there is an inconvenience that the work requires much labor.

In addition, if snow is thrown into the snow-melting chamber under a full condition, it takes a considerable amount of time for the water from the upper spray pipe to penetrate into the snow deposited below the snow-melting chamber, Possibility of inconvenience that snow cannot be injected continuously due to poor rise of snow melting and reduced snow melting ability, or heat exchange efficiency because hot air of exhaust gas from combustion chamber is directly discharged out of main body And the outer surface of the peripheral wall of the main body is heated by the combustion hot air, so that there is a problem that heat loss from the main body increases.

The present invention has been made in view of such problems of the related art, and the object thereof is to:
No matter how much snow is thrown into the snow-melting chamber, the hot exhaust gas from the combustion chamber in the combustion chamber is blown toward the snow in the snow-melting chamber to make effective use of the heat. To prevent heat dissipation loss, and furthermore, to equalize the hot air rising from the combustion chamber to the upper snow melting chamber to melt the snow put into the snow melting chamber on average. It is an object of the present invention to provide a snow melting device which can perform the melting.

[Means for Solving the Problems] In order to achieve the above object, in a snow melting apparatus of the present invention, a first invention is provided, wherein a snow melting chamber is provided in an upper stage and a burner is provided in a middle stage in a main body having an open upper portion. The combustion chambers facing each other are arranged in a three-dimensional manner so that the water collecting chambers communicate with each other at the lower stage. At an appropriate interval around the snow melting chamber, an inner wall plate is provided so as to surround the snow melting chamber. An exhaust path is formed between the inner wall plate and the inner wall plate, and the inner wall plate is provided with a snow melting device having a large number of exhaust windows. In addition, a combustion chamber with a burner facing the middle stage is arranged in a three-dimensional manner so that the water collecting chambers communicate with each other in the lower stage, and a watering body with a base end connected to a pump is arranged at the upper part of the main body. The inner wall plate is provided at an appropriate interval around the periphery of the snow melting chamber, and the snow melting chamber and the inner wall are formed. A snow melting device in which an exhaust passage is formed between the upper water sprinkler and an upper end opening of the exhaust passage is disposed close to the upper water sprinkler, and a part of water sprinkled from the upper water sprinkler flows down into the exhaust passage. It was done.

[Operation] When a large amount of snow is to be melted in a short time by using the snow melting apparatus according to the present invention, fuel and combustion air are sent to the burner in FIGS. 1 to 5. Start burning,
The combustion hot air is ejected into the combustion chamber. Then, the combustion hot air blows out from the combustion chamber into the snow melting chamber. Therefore,
When snow is thrown into the snow-melting chamber, the snow is quickly melted by the direct heating action with the burning hot air that passes between the rostrors from the combustion chamber and flares in the snow-melting chamber, and drops in the combustion chamber to collect water. It is stored indoors. The snowmelt water dropped and stored in the water collecting chamber is heated and exchanged by direct contact with the burning hot air while dripping in the combustion chamber, and is heated to a certain degree of warm water. While the water is being stored, the water is heated by the heating action of the combustion hot air, and becomes hot water.

As described above, when the snowmelt water stored in the water collecting chamber reaches the predetermined water level, the high-temperature snowmelt water is sprinkled from the upper part of the snowmelt chamber through the water spray body to perform a snowmelt action.

By the way, when a large amount of snow, particularly large snow chunks, is thrown into the snow-melting chamber, an appropriate interval is provided around the snow-melting chamber, the inner wall plate is surrounded, and an exhaust passage is provided between the snow-melting chamber and the inner wall plate. Since many exhaust windows are opened on the inner wall plate while forming it,
A portion of the combustion hot air ejected into the combustion chamber enters the exhaust path, and then flows through the exhaust path while heating the entire snow melting chamber and the inner wall plate, and is exhausted outside the main body from the upper end opening,
The hot air of the combustion exhaust gas flowing through the exhaust path is ejected from the entire periphery into the snow-melting chamber through a number of exhaust windows and blows against the side of the snow mass, so that the snow contained in the snow-melting chamber is the combustion exhaust gas. , And is quickly melted by the hot air, so that a further snow melting effect can be obtained.

Further, in the snow melting apparatus of the second invention, an exhaust passage is formed between the snow melting chamber and the inner wall plate by surrounding the inner wall plate at an appropriate interval around the snow melting chamber, and an upper end opening of the exhaust passage is provided. Is placed close to the upper sprinkler and a part of the water sprinkled from the upper sprinkler is allowed to flow down into the exhaust path, so the surrounding wall plate of the main body is always cooled by the sprinkled sprinkler water, The surrounding wall plate is not overheated more than necessary, and heat loss from the surrounding wall plate can be prevented beforehand, or the melting snow water flowing down can be further heated by the combustion hot air to facilitate effective use of the combustion hot air Can be done.

Example An example will be described with reference to the drawings.

1 to 5, reference numeral 1 denotes a main body of a snow melting apparatus having an open upper portion, in which a combustion chamber having a snow melting chamber 2 at an upper stage and a burner 5 at a middle stage. 3 are arranged three-dimensionally at the bottom so that the water collecting chambers 4 communicate with each other. Numeral 6 denotes a rostror support tube having a hollow inside and arranged horizontally at intervals at a boundary position between the snow melting chamber 2 and the combustion chamber 3,
The base end side of the rostral support tube 6 is connected to the blower 7 and the distal end side is connected to the air supply port 8 of the burner 5, so that the combustion air generated by the blower 7 is circulated through the rostre support tube 6. To the burner 5 to blow out the combustion hot air into the combustion chamber 3. Reference numeral 9 denotes a plurality of rostles placed at intervals on the rostre support pipe 6, and the snowmelt chamber 2 and the combustion chamber 3 are separated by the laying of the rostles 9. A sprinkler body 10 including an upper sprinkler body 11 and a lower sprinkler body 12 extends from the upper part to the inner part of the snow melting chamber 2 and is housed therein. The upper sprinkler body 11 is substantially similar to the snow melting chamber 2. The lower sprinkler 12 is formed at a substantially central height position of the snow melting chamber 2 in a rectangular frame substantially similar to the shape of the snow melting chamber 2. Is disposed near the upper end opening 14 of the main body 1 and a lower sprinkler 12 is disposed below the upper sprinkler 11 in a communicating state. A number of water holes 13 are formed in the surfaces of the upper water body 11 and the lower water body 12, respectively. One side of the upper watering body 11 has a pump 15
The water supply pipe 16 connected to the suction side of the pump 15 is opened and connected to the water supply pipe 17 connected to the suction side of the pump 15 via a three-way switching valve 18.
The front ends of b are connected to each other. The strainers 20a and 20b attached to the lower ends of the two branch pumping pipes 19a and 19b respectively include a pair of pumping tanks provided at the deepest part of one side of the water collecting chamber 4 on both sides of the water collecting tank 21 as a boundary. While being immersed in the 22a, 22b, the switching operation of the switching valve 18 allows the one branch pumping pipe 19a to pump the snow-melting water in the pumping tank 22a by the pump 15 while the other branch pumping pipe 19b. The pumping operation is configured to be stopped.

A suitable interval is provided around the snow melting device 2 and an inner wall plate 23 is provided so that the lower end is connected to the combustion chamber 3 between the peripheral wall plate 24 and the inner wall plate 23 of the main body 1 and the upper end is opened at the upper end. An exhaust path 25 leading to the part 14 is formed. A large number of slit-shaped exhaust windows 26 are opened in the surface of the inner wall plate 23, and a part of the combustion exhaust gas flowing along the exhaust passage 25 from the combustion chamber 3 is transmitted from the exhaust window 26 to the snow melting chamber. 2 to melt the stored snow efficiently.

The upper end side of the exhaust passage 25 is connected to the upper end opening 14, and the upper end sprinkling body 11 is disposed near the upper end opening 14, so that the snow melting water is sprayed at the time of spraying the snow melting water. Part of the flow is made to flow down along the exhaust path 25 to prevent the peripheral wall plate 24 of the main body 1 from being overheated and to reduce the heat loss from the main body 1 as much as possible.

Reference numeral 27 denotes a filter stretched so as to separate the pumping tanks 22a and 22b from the water intake tank 21. Reference numeral 28 denotes an overflow pipe attached to one side of the water intake tank 21. The overflow pipe 28
The water level inside can be kept constant and the snowmelt water can be discharged out of the main body 1. Reference numeral 29 denotes a drain port provided at the bottom of the water collecting chamber 4, and the drain port 29 is opened and closed by an appropriate valve. Numeral 30 denotes a heat shield plate provided around the inner periphery of the combustion chamber 3 at an appropriate interval, and 31 denotes a heat-resistant block-shaped heat absorbing material mounted on the roaster 9 and the heat absorbing material.
31 is made of a foamed refractory material, which is a heat absorbing material.
As shown in FIGS. 4 and 5, the hot air rising ports 32 communicating the combustion chamber 3 and the snow melting chamber 2 are staggered between rostrles 9 arranged at substantially equal intervals. It is arranged under such an inclined state. Therefore, since the heat absorbing materials 31 are arranged as described above, the hot air rising ports 32 are opened at substantially equal intervals.
Since the main body 1 is stably arranged under the state of being fitted between 9, 9, even when the main body 1 is moved, there is no breakage or displacement.

 A is the snow put into the snow melting chamber 2.

In the snow melting apparatus of the embodiment shown in FIG. 6, an exhaust window 26 'formed in the surface of the inner wall plate 23 is formed in a louver shape. In the snow melting apparatus, an exhaust window 26 ″ perforated in the surface of the inner wall plate 23
Is formed in the shape of a circular hole, and the lower water sprinkling body 12 'is disposed substantially in the center of the snow-melting chamber 2 in an annular state. In short, the exhaust windows 26, 26', 26 Any shape can be used for the shape of "".

Also, the water sprinkling holes 13 drilled in the upper water sprinkling body 11 are provided on the lower half peripheral surface of the upper water sprinkling body 11, and the water sprinkling holes 13 drilled in the lower water sprinkling body 12 are provided on the entire peripheral surface of the lower water sprinkling body 12. And effective.

The above-mentioned heat absorbing material 31 may be the heat absorbing material of the embodiment shown in FIGS. 8 (a) to (d) and FIG. 9, respectively.

That is, the one shown in FIG.
1 'is a block type refractory material (for example, ceramic material)
And a large number of heat absorbing materials.
31 'is arranged in such a manner that a hot air rising port 32' communicating between the snow melting chamber 2 and the combustion chamber 3 between the rostrles 9 and 9 is inclined toward one side so as to open in a staggered manner.

In the embodiment shown in FIG. 8 (b), a plurality of hot air rising ports 32 'are provided in a block-shaped heat absorbing material 31' made of the block-shaped refractory material so as to penetrate the heat absorbing material 32 '. The members 31 'are alternately placed in a slanted manner in the response direction between the rostrles 9, 9 such that the hot air rising ports 32' are arranged in a staggered manner.

The embodiment shown in FIG. 8 (c) is a heat-absorbing material 31 "made of a hollow cylindrical refractory material having an open end at both ends and having a hot air rising port 32" therein. The heat absorbing material 31 ″ is roasted to make the hot air riser 32 ″ arranged in a zigzag pattern.
It is arranged so as to be inclined alternately in the opposite direction.

The embodiment shown in FIG. 8 (d) is a heat absorbing material 31 formed of a hollow cylindrical metal material having an open end at both ends and having a hot air rising port 32, for example, a stainless steel material. A large number of the heat absorbing materials 31 are arranged between the rostrles 9, 9 so as to be inclined alternately in opposite directions so that the hot air rising ports 32 are arranged in a staggered manner.

In the embodiment shown in FIG. 9, a plurality of heat absorbing materials 31 "or 31 formed of a hollow cylindrical refractory material or a hollow cylindrical metal material are arranged in a staggered manner with hot air rising ports 32" or 32. It is connected in a skewered manner by a connecting punch 33 in a perspective state toward the opposite direction so as to be performed, and in this embodiment, it is possible to handle a plurality of heat absorbing materials at once. Since the materials are not dispersed, they can be regularly placed on the rostres 9,9.

[Effects of the Invention] Since the present invention is configured as described above,
The following effects are obtained.

No matter how much snow is thrown into the snow-melting chamber, the hot air of the combustion exhaust gas discharged from the combustion chamber toward the exhaust path is converted into the snow in the snow-melting chamber from the many exhaust windows. If it is possible to improve the snow melting ability by using heat effectively, let the part of the sprinkling water sprayed by the upper sprinkler flow down along the exhaust path, and the surrounding wall plate of the main body will It is possible to prevent overheating more than necessary, and to minimize heat loss from the surrounding wall plate.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional front view of a snow melting apparatus according to the present invention, FIG. 2 is a longitudinal sectional side view taken along the line II-II of FIG.
The figure is a cross-sectional plan view in the direction of arrows in FIG.
FIG. 4 is a cross-sectional plan view in the direction of arrows IV-IV in FIG. 1, FIG. 5 is an enlarged front sectional view in which main parts are partially cut away, and FIG.
The figure is a partially cutaway sectional view showing another example of the exhaust window, and FIG.
FIG. 8 is a longitudinal side view of the snow melting apparatus when the exhaust window is a circular hole, and FIGS. 8A to 8D show various examples of the heat absorbing material. ) Is a perspective view of a heat absorbing material formed of a block-shaped refractory material, and FIG. 8 (b) is a perspective view of a heat absorbing material formed of a block-shaped refractory material having a plurality of hot air rising openings. (C) is a perspective view of a heat absorbing material formed of a hollow cylindrical refractory material, FIG. 8 (D) is a perspective view of a heat absorbing material formed of a hollow cylindrical metal material, and FIG. It is a perspective view at the time of connecting the heat absorbing material molded with the hollow cylindrical refractory material or the hollow cylindrical metal material in a skewered manner. 1 ... body, 2 ... snow melting room, 3 ... combustion chamber, 4 ... water collecting room, 5 ... burner, 9 ... rostr, 10 ... sprinkler, 11
... upper sprinkler, 12 ... lower sprinkler, 14 ... upper end opening, 15 ... pump, 18 ... switching valve, 19a, 19b ... a pair of branch pumping pipes, 22a, 22b ... a pair of pumping Tank, 23 ...
... inner wall plate, 24 ... wall plate around the body, 25 ... exhaust path, 26 ...
... Exhaust window, 31,31 ', 31 ", 31 ... Heat absorbing material, 32,32', 3
2 ″, 32 …… hot air riser

Claims (2)

(57) [Claims] 1. A structure in which a snow melting chamber is provided in an upper part, a combustion chamber having a burner facing in a middle part, and a water collecting chamber is provided in a lower part in a three-dimensional manner in a main body having an open upper part. At an appropriate interval around the snow melting chamber, an inner wall plate is provided so as to form an exhaust passage between the snow melting chamber and the inner wall plate, and a number of exhaust windows are opened in the inner wall plate. Snow equipment. 2. A body having an open upper portion, a snow melting chamber in an upper stage, a combustion chamber facing a burner in a middle stage, and a water collecting chamber in a lower stage, which are sequentially arranged in a three-dimensional manner so as to communicate with each other. In the upper part of the main body, a sprinkler body whose base end is connected to a pump is disposed, and an inner wall plate is provided at an appropriate interval around the perimeter of the snow melting chamber, and between the snow melting chamber and the inner wall plate. A snow melting apparatus in which an exhaust passage is formed, and an upper end opening of the exhaust passage is disposed close to the upper sprinkler, so that a part of water spray from the upper sprinkler flows down into the exhaust passage.