JP2011006850A - Warm air flow-type snow-melting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical warm air flow-type snow-melting system which reduces a snow melting cost by using warm air produced by a daily life and production activity, which is excellent in workability because snow charging work has only to be performed as snow melting work, and which can also reduce a maintenance cost because only a small number of machine components are used.SOLUTION: A vertically-long snow-melting tank 1 for being buried in the ground G is formed like a bottomed cylinder, the upper end of which is provided with a snow charging opening 2B capable of being opened/closed by a lid body 4. A warm air discharge body 5, which has eight discharge fins 7 radially provided on a wall surface of a dispersion cylinder 6, is provided in an inserted state in the snow-melting tank 1; and its lower end side is connected to an attic of a building via a warm air introduction pipe 10. A suction mechanism 11, which comprises a suction pipe 11A and a suction fan 11B, is provided on the upper end side of the snow-melting tank 1. The inside of the snow-melting tank 1 is brought into negative pressure; the warm air at about 11-15°C in the building is sucked in, and brought into contact with the snow while flowing and ascending in the snow-melting tank 1, so as to melt the snow. The charged snow is cut and crushed by the warm air discharge body 5 so as to increase an area of contact with the warm air.

Description

  The present invention relates to a snow melting device, and in particular, without using a heat source such as kerosene or an electric heater dedicated to snow melting, utilizes warm air generated daily in buildings such as houses and factories, and cuts snow blocks to melt snow. The present invention relates to a warm-air flow type snow melting device.

  Conventional snow-melting devices include a direct-heating type snow-melting device that directly melts snow by putting snow on a combustion can heated by burning kerosene, and hot water that melts snow by jetting hot water generated in a kerosene boiler. An injection-type snow melting device and an electrothermal snow melting device that melts snow by arranging an electric heater on the bottom side of a snow melting tank are known.

Japanese Utility Model Publication No. 5-42102

However, the conventional snow melting apparatus has the following drawbacks and problems.
B) Since kerosene or an electric heater is an essential means for the heat source, there is a disadvantage that the operating cost increases.
(B) The direct heat type snow melting device and the electrothermal type snow melting device have a drawback that a “kamakura phenomenon” occurs in which a melting cavity is formed between the heat source and the input snow mass, and the snow mass does not directly contact the heat source. For this reason, there is a drawback that it takes time to melt the snow, and an operation for sometimes breaking the snow mass from above is necessary, and for this reason, there is a disadvantage that it is necessary to be near the snow melting device during the snow melting operation.
C) In the direct heat type and hot water injection type snow melting devices that burn kerosene, the combustion noise of combustion cans and boilers is noisy. In residential areas, snow melting work in the evening and early morning must be self-sufficient. is there.
(D) In the direct heat type and hot water jet type snow melting apparatus, it is necessary to sequentially put snow into the snow melting tank during the snow melting work, and therefore, the snow melting work is restricted for a long time.
E) The electrothermal snow melting device simply heats the snow that has been thrown in and accumulated from below, and thus has a drawback of poor thermal efficiency and high power consumption.
F) Combustion cans, boilers, combustion cylinders, injection nozzles, electric heaters, etc. are in a state of being immersed in snow-melting water, and since they are subject to large temperature changes, deterioration due to rusting and metal fatigue is inevitable. For this reason, maintenance and management costs such as parts replacement and periodic inspection are required.
(G) Since economic problems such as rising crude oil prices will be directly affected, measures such as discontinuing the operation of the snow melting device and reducing the consumption of fuel and electricity by setting the temperature of hot water low There is also a problem that cannot be avoided.

  In view of the various drawbacks and problems of the prior art described above, the present inventor has found that the three elements of “temperature, wind, and snow block cutting” are effective for efficient snow melting and intensive research. As a result of this, it is economical because the cost of melting snow can be reduced to a minimum by using the warm air generated daily by daily life and business production activities, and snow melting work is only snow throwing work An object of the present invention is to provide an extremely economical warm-air flow type snow melting device that is excellent in workability and can reduce maintenance and management costs significantly because there are few mechanical parts.

  The means of the present invention configured to solve the above-described problems is provided with a snow inlet that can be opened and closed by a lid at the upper end, a vertically long snow melting tank buried in the ground, and inserted into the snow melting tank, A warm air emitter having discharge fins for releasing the heat into the snow melting tank, and warm air flow means for introducing warm air generated in the building to the lower end side of the warm air radiator and causing the snow melting tank to flow upward Consists of.

  The warm air discharge body has a vertically long dispersion cylinder having a warm air discharge hole provided on a wall surface and a lateral blowout hole communicating with an internal flow path, and the flow path communicates with the warm air discharge hole. It is good to comprise from several discharge | emission fins protruding laterally outside the wall surface of this dispersion | distribution cylinder.

  The warm air flow means sucks warm air in the building into the warm air discharge body by a suction fan via the warm air introduction pipe connected between the building and the lower end side of the warm air discharge body. And it is good to comprise from the suction mechanism discharged | emitted from the upper end side after discharge | releasing and flowing in the said snow melting tank.

  Further, the tank body constituting the snow melting tank is formed in a cylindrical shape having an upper end opening serving as a snow inlet and a lower end serving as an opening, and is configured to be installed on a permeation layer provided on the ground. Good.

  The snow melting tank may be configured by forming a concrete layer on the inner surface of a vertical hole formed by excavation in the ground.

Since the present invention is configured as described above, the following effects can be obtained.
(1) The snow mass thrown into the snow melting tank is deposited in a state where the entire surface area is increased by being cut into small pieces and strips by hitting the warm air emitter, and always contacts the warm air emitter and flows constantly. It can melt | dissolve reliably by the area which warm air contacts increases.
(2) In the snow melting tank, warm air is always discharged from the warm air discharge body and flows upward, and the snow melts in contact with the snow during this time, so that the cold air does not stay on the lower side in the snow melting tank. In addition, since only the lower side melts and no hollow is formed in the shape of a pillow, there is no need to carry out snow breaking work during the snow melting work.
(3) Conventionally, kerosene or electricity is used as a heat source because the warm air generated by daily life and production activities is used for melting snow, and only the warm air flow means for flowing the warm air in the snow melting tank is driven. Compared with other snow melting equipment, it can greatly reduce the cost of snow melting, and contribute greatly to the prevention of global warming and the effective use of resources.
(4) The snow melting work is only the work of putting snow into the snow melting tank and closing the lid, and the work of pushing through the snow from the top is completely unnecessary, so it is excellent in workability and operates extremely quietly for 24 hours. Even so, it won't cause trouble in the neighborhood.
(5) The structure of the present invention has few moving parts, and is not affected by a large temperature difference as in a direct heat type or hot water injection type snow melting device, and therefore is not affected by metal deterioration or rusting of components. It has excellent durability and can greatly reduce maintenance and management costs.
(6) Since the tank body constituting the snow melting tank is formed in a cylindrical body with the upper end opening serving as a snow inlet and the lower end opened, and installed on a permeation layer provided on the ground, It can be drained and can be manufactured at low cost.
(7) The snow melting tank can be manufactured at a low cost by forming a concrete layer on the inner surface of a vertical hole excavated in the ground.

1 to 7 relate to a first embodiment of the present invention, and FIG. 1 is an explanatory view showing the overall configuration of the snow melting device. It is an external appearance perspective view which decomposes | disassembles and shows a snow melting tank. It is a longitudinal cross-sectional view which shows the internal structure of a snow melting tank. It is an upper side expanded sectional view of a snow melting tank. It is a VV arrow direction sectional view in FIG. It is an external view of a warm air discharge body. It is a longitudinal cross-sectional view of a warm air discharge body. It is a longitudinal cross-sectional view of the snow melting apparatus which concerns on 2nd Embodiment. It is a longitudinal cross-sectional view of the snow melting apparatus which concerns on 3rd Embodiment.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In the figure, reference numeral 1 denotes a concrete long snow melting tank buried from the surface A to the ground. The snow melting tank 1 has a bottom 2A, the upper end opening is a snow inlet 2B, and a bottomed cylindrical tank body 2 having an annular step 2C formed below the snow inlet 2B, and the tank body 2 of the circular fall prevention body 3 which consists of a metal lattice locked to the annular step 2C, and a metal double door 4 which closes the snow inlet 2B of the tank body 2 so as to be openable and closable. is there.

  Reference numeral 5 denotes a warm air emitter inserted in the snow melting tank 1 so as to release warm air. Reference numeral 6 denotes a cylindrical dispersion cylinder constituting the warm air discharge body 5. The dispersion cylinder 6 is a cylinder body 6A, an upper lid 6B and a lower lid 6C that close both upper and lower ends of the cylinder body 6A, and a wall surface of the cylinder body 6A. And a plurality of warm air blowing slits 6D, 6D,... Formed in a vertically long manner and a pipe connection port 6E provided on the lower end side of the wall surface.

  7, 8 are eight discharge fins communicating with the warm air blowing slit 6D of the cylindrical body 6A and projecting laterally outward from the wall surface, each of the discharge fins 7 being a pair of vertically opposed counter plates 7A, 7A, a front plate 7B connected to the front ends of the opposing plates 7A and 7A, and a bottom plate 7C connected to the lower ends of the opposing plates 7A and 7A and the front plate 7B to form a hollow thin panel. The snow blocks are cut and easily crushed. The discharge fin 7 has a planar flow path 7D through which warm air flows, and a slit-shaped discharge opening 7E at the upper end opening. The distal end plate 7B has a plurality of discharge holes 7F, 7F,. It is drilled. It should be noted that a slit-like discharge hole may be used instead of the plurality of discharge holes 7E.

  Here, in the present embodiment, the eight discharge fins 7 basically have the same configuration, but as shown in FIG. 6, the length of one discharge fin 7 is slightly shortened to position the bottom plate 7C. It is set higher than the other discharge fins 7, and a piping space is provided between the bottom portion 2 </ b> A of the tank body 2 for disposing a warm air introduction pipe 10 to be described later. Reference numeral 8 denotes an eyebolt provided on the upper cover 6B of the dispersion cylinder 6 in order to suspend the warm air discharge body 5 and insert it into the tank body 2.

  Reference numeral 9 denotes warm air flow means for introducing warm air in the building H into the warm air discharge body 5 and causing the snow melting tank 1 to flow upward. Reference numeral 10 denotes a warm air introduction pipe made of, for example, a vinyl chloride pipe constituting the warm air flow means 9, and the warm air introduction pipe 10 has one end side 10A for an attic space of a building H such as a house or a company building or a first floor ceiling space. The other end 10 </ b> B is connected to the pipe connection port 6 </ b> E of the dispersion cylinder 6 on the bottom side of the tank body 2. Here, the warm air introduction tube 10 is arranged such that the other end 10B side is disposed below the one heat radiating fin 7 so that it will not be impacted or damaged by the snow mass to be introduced.

  Reference numeral 11 denotes a suction mechanism for sucking warm air of the building H into the snow melting tank 1 and causing it to flow upward from below. The suction mechanism 11 is inserted into the upper part of the tank body 2 so that one side opening has a tank body. 2, a suction pipe 11 </ b> A that is opened downward and the other side opening is located at an appropriate height from the ground surface A, and an electric suction fan 11 </ b> B that is provided on the upper end side of the suction pipe 11 </ b> A. It is composed of.

  Although the present embodiment has the above-described configuration, the operation thereof will be described next. First, the snow melting tank 1 is located in the vicinity of the building H and is buried in the ground G. Warm air is provided between a place where warm air in the building H such as the first floor attic of the building H stays and the pipe connection port 6E of the introduction pipe 6. The supply pipe 10 is connected and installed.

At the time of snow melting work, the lid 4 is opened and snow is poured into the tank body 2 from the snow inlet 2B. A part of the thrown-in snow lump hits the upper ends of the introduction cylinder 6 and the discharge fins 7, and is cut into small pieces and strips, and is crushed and accumulated on the bottom of the tank body 2. When the snow is thrown in to the extent that the discharge fins 7 are filled up substantially on the upper side in the tank body 2, the lid 4 is closed and the suction fan 11B is started.

  The tank body 2 has a negative pressure due to the suction force of the suction fan 11 </ b> B, and warm air of about 11 to 15 ° C. generated in the building H is sucked through the warm air introduction pipe 10, and the dispersion pipe 6 of the warm air discharge body 5. To be introduced. The warm air that has flowed into the dispersion cylinder 6 flows from the warm air blowing slit 6D into the flow path 7D of each discharge fin 7 as shown by an arrow B, and the discharge ports 7E and discharge holes 7F, 7F,. .. discharged from the tank body 2

The warm air emitting body 5 is heated by the flowing warm air, so that the snow in contact with the warm air is melted. The warm air flows in the tank body 2 from the lower side to the upper side by the suction force of the suction fan 11B, and the snow is sequentially melted by coming into contact with the accumulated snow during the flow.

  In this way, by constantly supplying and flowing warm air of about 11 to 15 ° C. into the snow melting tank 1 into which snow has been thrown in, the three elements “temperature, wind, cutting” necessary for snow melting function, and thrown in as a result. The snow can be melted in about a day and night. Snow is mixed with air and its volume is large, but when it dissolves into water, the volume decreases to a few tenths, so the amount of water that accumulates at the bottom of the tank body 2 is not large, and warm air is always present. Most of it evaporates by inflow.

  According to the present embodiment, snow can be melted only by driving the suction fan 11B, so that power consumption required for snow melting is extremely small, and snow in the area of the entrance of a general household or company or a parking lot area. Can be poured into the tank body 2 at a time, the snow melting work can be completed by a single snow throwing work, and it is not necessary to perform the snow throwing work during operation unlike the conventional snow melting apparatus.

  Further, in this embodiment, since the suction fan 11B is used for warm air suction and flow, a fan motor having a smaller output than that in the case of using a push-in fan is sufficient, and power consumption can also be reduced in this respect.

  In this embodiment, the tank body 2 is made of concrete. However, for example, a fiber reinforced plastic (FRP) may be used.

  FIG. 8 shows a second embodiment. In the embodiments described below, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. In the figure, 21 is a snow melting tank, 22 is a tank body constituting the snow melting tank 21, and the tank body 22 has an upper end opening serving as a snow inlet 22A, and an annular step portion 22B below the snow inlet 22A. Is formed in a cylindrical body having an opening 22C without providing a bottom at the lower end.

  Reference numeral 23 denotes a permeation layer on which the tank body 22 is placed. The permeation layer 23 is formed by laminating pebbles and sand on the bottom of a vertical hole excavated in the ground G. The tank body 22 with the lower end being an opening 22C is placed on the infiltration layer 23, and the snow melt water in the tank body 22 is quickly infiltrated into the ground to make the inside of the tank body 22 dry. Can be prepared for snow melting work.

  Further, FIG. 9 shows a third embodiment. In the figure, 31 is a snow melting tank, 32 is a tank main body constituting the snow melting tank 31, and the tank main body 32 has a cylindrical reinforcing bar assembled along the wall surface of a vertical hole F formed by excavating the ground G. It consists of a reinforced concrete layer formed by spraying means. The structure of the tank main body 32 is not different from that of the tank main body 2 of the first embodiment, the upper end opening is a snow inlet 32A, and the annular step 32B on the upper end side is locked by the fall prevention body 3. It consists of the structure to do. According to the present embodiment, it is possible to configure the tank body 32 having a relatively large diameter at a low cost compared to the case where the tank body 32 is manufactured by FRP.

  In the present embodiment, the tank body 2 constituting the snow melting tank 1 can be formed of either concrete or fiber reinforced plastic, but a heat insulating layer is further provided on the outer surface or the inner surface thereof, It is also possible to increase the snow melting efficiency by suppressing the temperature drop.

  The warm air used for melting snow in the present invention is not limited to that generated from family life, but includes all that is generated in economic activities and production activities in stores, offices, factories and the like. As a result, it is possible to melt snow in front of a house entrance, a parking yard, in front of a store or company entrance, a parking lot, and the like only by driving the warm air flow means, which is extremely low cost.

  In the present embodiment, the suction fan 11B is used as a means for introducing and flowing warm air into the snow melting tank 1 and exhausting it to the outside. For example, the warm air of the building H is heated by a pushing fan connected to the warm air introduction pipe 10. It is also possible to adopt a configuration in which it is sucked and pushed into the warm air discharge body 5 to flow in the snow melting tank 1.

1, 21, 31 Snow melting tanks 2, 22, 32 Tank body 2B Snow inlet 4 Lid 5 Warm air discharger 6 Dispersion cylinder 6D Warm air blowing slit (warm air discharge hole)
7 Discharge fin 7D Flow path 7F Horizontal discharge hole 9 Warm air flow means 10 Warm air introduction pipe 11 Suction mechanism 11B Suction fan 22C Opening 23 Infiltration layer G Ground H Building

Claims (5)

  A snow throwing opening that can be opened and closed by a lid, provided at the upper end, a vertically long snow melting tank embedded in the ground, and a warm air emitting body that is inserted into the snow melting tank and has discharge fins that discharge warm air into the snow melting tank, A warm air flow type snow melting device comprising warm air generated in a building and introduced into a lower end side of the warm air discharge body and flowing upward in the snow melting tank.   The warm air discharge body has a vertically long dispersion cylinder having a warm air discharge hole provided on a wall surface, and a lateral blow-out hole communicating with an internal flow path, and the dispersion in a state where the flow path communicates with the warm air discharge hole. The warm air flow type snow melting device according to claim 1, comprising a plurality of discharge fins projecting laterally on the outer wall surface of the cylinder.   The warm air flow means sucks warm air in the building into the warm air discharge body by a suction fan via the warm air introduction pipe connected between the building and the lower end side of the warm air discharge body, The warm-air flow type snow melting device according to claim 1, further comprising a suction mechanism that discharges into the snow melting tank and causes it to flow, and then discharges it from the upper end side to the outside.   The tank body constituting the snow melting tank is formed in a cylindrical shape with an upper end opening serving as a snow inlet and a lower end serving as an opening, and is installed on a permeation layer provided on the ground. The warm air flow type snow melting device according to claim 1.   2. The warm-air flow type snow melting device according to claim 1, wherein the snow melting tank is configured by forming a concrete layer on an inner surface of a vertical hole formed by excavation in the ground.

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