JP2010159574A - System and method for melting snow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structurally-simple snow melting system which can efficiently melt snow by utilizing groundwater, and a snow melting method. <P>SOLUTION: Piping 16 connected to a lifting pump 13 etc. is connected to a tank 23 which is provided below a snow melting tank 5. A plurality of water sprinkling pipes 25 are connected to a top surface of the tank 23. The water sprinkling pipes 25 which are formed in such shapes that an upper end of a steel pipe is closed are pipe-like members through which water such as groundwater flows, and used to sprinkle water into the snow melting tank. Thus, the groundwater or the like from the lifting pump 13 is supplied into the tank 23, and flows into each of the water sprinkling pipes 25 from the tank 23. The water sprinkling pipes 25 are erected upward. Additionally, the water sprinkling pipe 25 is provided with a plurality of nozzles 29. The nozzles 29 are, for example, a hole which is formed in the water sprinkling pipe 25 and a portion to which the water is sprinkled from the water sprinkling pipe 25. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a snow melting device and a snow melting method that melt ground by spraying groundwater into snow.

  Conventionally, in heavy snow areas and the like, the road is removed by a snowplow during snowfall. The snow removed on the side of the road is transported and collected by a truck or the like to a predetermined snow accumulation site installed in the area.

  However, if there is snow in the early morning, the snowplow will collide with the commuting rush and snow removal will not proceed. In addition, since priority is given to snow removal on main arterial roads, there was a problem that snow removal in residential areas was postponed and snow removal in residential areas did not proceed.

  In addition, there is a limit to the installation of a snow accumulation site, and it is costly to carry snow to a snow accumulation site in the suburbs. Also, there are problems such as environmental pollution and traffic congestion due to exhaust gas during transportation. There is.

  In addition, when the snow removed from the side of the road is left and the snow is not removed by a truck or the like, the road prospect is poor and a traffic accident may occur.

  Therefore, it is desirable that the snow removed is reliably melted at a position as close as possible to the place where the snow has been removed.

  As an apparatus for melting snow from such snow removed, there is a snow melting apparatus that draws up ground water and sprinkles water on the snow in a snow melting tank buried underground (Patent Document 1).

JP 2004-339904 A

  However, since the underground buried snow melting apparatus described in Patent Document 1 uses ground water, a heat source or the like is not necessary, and the structure is simple. However, since only the shower is sprayed from above, snow melting efficiency is not so high. . In addition, wire mesh for finely collecting snow and catching snow once, and grid-shaped inner lids, etc., accumulate when a lot of snow is thrown in at once, so the next snow is thrown in until the thrown snow melts There is a problem that you need to wait.

  In addition, the snow removed from the snow is usually in a pressed state, and there is a problem that when it is put on the lattice-shaped inner lid, the snow is not easily divided by the inner lid.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a snow melting apparatus and a snow melting method that can efficiently melt snow using groundwater and have a simple structure.

  In order to achieve the above-mentioned object, a first invention is a snow melting device that melts snow with groundwater, the first pump for pumping up the groundwater, and the groundwater pumped by the first pump to spray snow. A plurality of sprinkling pipes that are connected to the first pump and stand upward in the snow melting tank, comprising: a melting snow melting tank; and a permeation tank for allowing water flowing out of the snow melting tank to penetrate underground. Is provided, and the groundwater is sprinkled from the water spray pipe.

  A heat storage tank is provided between the snow melting tank and the permeation tank, and the heat storage tank can store water from the snow melting tank to a predetermined water level, and a part of the water stored in the heat storage tank It is desirable that a second pump capable of pumping water is provided, and the water pumped by the second pump can be sent to the water spray pipe together with the ground water.

  A third pump capable of pumping a part of the water stored in the heat storage tank is further provided, and the water pumped out by the third pump may be used as intermediate water, It can also be discharged into a drain. In this way, it is possible to effectively use water that has melted snow, and when the melting rate exceeds the penetration rate and the increase in the melted water cannot be suppressed even by the buffer effect of the heat storage tank, By discharging the drained water into the drainage channel, it is possible to compensate for a portion where the balance between the melting speed and the permeation speed of the snow melting device is lost. Here, although the 3rd pump shall be installed in a thermal storage tank, it may be provided in an infiltration tank, and the infiltration tank may be given the same function. Moreover, the vibration means which can vibrate the said watering pipe using the water by a 3rd pump may be provided.

  A wing may be provided on the outer surface of the watering pipe toward the outside of the watering pipe, or a spiral wing may be provided on the outer surface of the watering pipe in the axial direction of the watering pipe. Also good. You may have a rotation means in which at least one part can rotate among a plurality of the watering pipes.

  According to the first invention, since a plurality of water sprinkling pipes standing upward are provided in the snow melting tank, the snow thrown into the snow melting tank is partially broken (divided) by the water sprinkling pipe. A part will be in the state which pierces a watering pipe. For this reason, the contact area of the water sprayed and the thrown-in snow increases, and it can melt snow efficiently.

  In addition, since water at a temperature that can melt snow flows in the water spray pipe, the surface temperature of the water spray pipe rises, and the snow that comes in contact with it is melted easily, so that the thrown-in snow has pierced the water spray pipe. Even if it stays at, the contact part with the sprinkler pipe immediately melts and the snow reaches the lower part of the snow melting tank. Further, since the water spray pipe faces upward, even if a large amount of snow is thrown in, the snow lump is sent to the lower part of the snow-melting tank while being crushed by the water spray pipe. Therefore, no snow accumulates above the snow melting tank.

  Moreover, if a heat storage tank is provided, the water containing the sherbet-like snow which flowed out of the snow melting tank will be once stored. On the other hand, the water that flows out of the snow melting tank has a water temperature that can melt the snow. For this reason, it is possible to reliably melt the snow that has remained unmelted in the heat storage tank.

  In addition, by pumping a portion of the water stored in the heat storage tank to the sprinkler pipe using a pump, it is possible to reduce the amount of groundwater pumped and to circulate water at a temperature that can melt snow, thereby efficiently melting snow. It can be performed.

  In addition, pumping a part of the water stored in the heat storage tank is not only when the water in the heat storage tank is directly pumped, but adjacent to the heat storage tank, for example, a pit having substantially the same water level as in the heat storage tank. This includes the case of drawing out the water inside. In this case, the pit and the heat storage tank are separate tanks, but the heat storage tank and the pit are directly connected. By pumping up the water in the pit, it is substantially the same as pumping out the water in the heat storage tank. Can have an effect

  Moreover, if a part of the water stored in the heat storage tank is used as the middle water, the water can be used more effectively.

  Moreover, if the watering pipe is vibrated, the snow mass introduced into the snow melting tank can be more efficiently crushed. Further, by providing wings on the outer periphery of the water spray pipe, the snow breaking effect can be further enhanced, and by providing spiral wings on the outer periphery of the water spray pipe and further rotating the water spray pipe, higher crushing effect can be achieved. A snow effect and an effect of sending snow to the lower part of the snow melting tank can be obtained.

  A second invention is a snow melting method for melting snow with groundwater, the first pump, a snow melting tank connected to the first pump, a heat storage tank connected to the snow melting tank, and the heat storage tank The groundwater is pumped by the first pump using a snow melting device comprising a second pump capable of pumping a part of the water stored in the tank and an infiltration tank into which the water flowing out of the heat storage tank flows. In addition, a part of the water stored in the heat storage tank is pumped up by the second pump, and the first and second pumps sprinkle the snow from a plurality of water pipes standing upward in the snow melting tank. Melting the snow in the snow melting tank, storing water flowing out from the snow melting tank and a part of the snow in the heat storage tank to completely melt the snow, and water flowing out from the heat storage tank in the infiltration tank underground It is a snow melting method characterized by making it penetrate.

  According to the second aspect of the present invention, since a plurality of water sprinkling pipes standing upward are provided in the snow melting tank, a part of the snow thrown into the snow melting tank is crushed by the water sprinkling pipe, and a part of the water is scattered. It will be in a state of being pierced into the water pipe, and snow can be melted efficiently.

  Moreover, since the heat storage tank is provided, the sherbet-like snow that has flowed out of the snow melting tank can be completely melted. In addition, by pumping a portion of the water stored in the heat storage tank to the sprinkler pipe using a pump, it is possible to reduce the amount of groundwater pumped and to circulate water at a temperature that can melt snow, thereby efficiently melting snow. It can be performed.

  ADVANTAGE OF THE INVENTION According to this invention, snow melting can be performed efficiently using groundwater, and a snow melting apparatus and a snow melting method with a simple structure can be provided.

Schematic which shows the structure of the snow melting apparatus 1. FIG. It is a figure which shows the snow melting tank 5, (a) is a top view, (b) is the sprinkling pipe 25 enlarged view. The figure which shows the state which injected snow into the snow melting tank. It is a figure which shows the thermal storage tank 7 and the pit 9, (a) is an elevation view, (b) is the K section enlarged view of (a). The figure which shows the osmosis tank 11. FIG. The figure which shows the watering pipe 51 and the watering pipe 55. FIG. The figure which shows the snow melting tank 5 in which the vibrator 59 was provided. The figure which shows the snow melting apparatus.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a diagram showing a snow melting device 1 according to an embodiment of the present invention.

  The snow melting device 1 is mainly composed of a snow melting tank 5, a heat storage tank 7, a pit 9, an infiltration tank 11, a pumping pump 13, and the like. The snow melting tank 5, the heat storage tank 7, the pit 9, the infiltration tank 11, etc. are each installed in the basement below the ground 21.

  The pumping unit 3 is, for example, a well for pumping up groundwater, and a pumping pump 13 is installed. The pumping pump 13 may be a general submersible pump. The depth of the pumping section (pumping pump 13) is preferably deeper than the groundwater level and not deeply affected by the temperature on the ground.

  If the depth of the pumping pump 13 is too shallow, the pumping pump 13 is located above the groundwater level and cannot pump the groundwater. Even if the pumping water is below the groundwater, if the influence of outside air on the ground is large, Low, snow melting efficiency decreases. On the other hand, when the depth of the pump 13 is too deep, an excessive pump capacity is required, and the construction cost is increased. Desirable depth of the pump 13 is, for example, about 50 m to 200 m. In this case, for example, the groundwater temperature is often about 17 ° C.

  The snow melting tank 5 is a tank for melting snow. The groundwater or the like pumped up by the pump is sprinkled by the sprinkling pipe 25 in the snow melting tank 5 and the snow in the snow melting tank is melted. Details of the snow melting tank 5 will be described later.

  The heat storage tank 7 is a tank for temporarily storing water after the snow has melted, groundwater sprinkled in the snow melting tank 5, a part of the snow remaining unmelted, and the like. Usually, the water sprayed in the snow melting tank 5 does not completely affect the snow melting, and a part thereof flows out to the heat storage tank 7 in a relatively high temperature state. For example, the water temperature in the heat storage tank 7 is about 3 ° C. on average. Therefore, the heat storage tank 7 can completely melt the unmelted snow and the like with the water flowing in from the snow melting tank 5 while being stored in the heat storage tank 7. The details of the heat storage tank 7 will be described later.

  The pit 9 is for drawing a part of the water stored in the heat storage tank 7. As described above, the water in the heat storage tank 7 still has a temperature enough to melt snow. In some cases, the dissolved water and groundwater can be used as middle water or the like (water that is not purified water or sewage such as domestic wastewater). Therefore, the water in the pit 9 can be utilized by the circulation pump 15 and the middle water pump 17 in the pit 9.

  For example, a part of the water in the pit 9 is mixed with the ground water flowing in the pipe 16 via the pipe 19 by the circulation pump 15, so that it can be used as a part of the water sprayed in the snow melting tank 5. it can. The pit 9 may be integrated with the heat storage tank 7, and the pit 9 may not be provided as long as the circulation pump 15 and the middle water pump 17 can be installed in the heat storage tank 7.

  The permeation tank 11 is a tank for allowing unnecessary water to permeate underground. The water flowing out from the pit 9 (heat storage tank 7) flows into the permeation tank 11. The water that has flowed into the osmosis tank 11 penetrates into the ground from the lower surface of the osmosis tank.

  Next, the flow of water will be described with reference to FIG. The water pumped up by the pumping pump 13 (in the direction of arrow A in the figure) passes through the pipe 16 and is sent to the snow melting tank 5 (in the direction of arrow B in the figure). At this time, the water pumped up by the circulation pump 15 from the pit 9 as necessary passes through the pipe 19 (in the direction of arrow G in the figure), merges in the pipe 16 and is sent to the snow melting tank 5 together with the groundwater (arrow B in the figure). direction).

  The water sprayed by the water spray pipe 25 in the snow melting tank 5 flows into the heat storage tank 7 together with the water melted and the like (in the direction of arrow C in the figure). The water in the heat storage tank 7 flows into the adjacent pit 9 (in the direction of arrow D in the figure). Part of the water in the pit 9 is pumped by the circulation pump 15 as described above, and part of the water is pumped up to the ground by the intermediate water pump 17 (in the direction of arrow H in the figure) and used as intermediate water. . The water that flows into the infiltration tank 11 from the pit 9 (in the direction of arrow E in the figure) permeates the ground in the infiltration tank 11 (in the direction of arrow F in the figure). As described above, snow melting and water after melting are treated.

  Next, details of each tank will be described. FIG. 2 is a view showing the snow melting tank 5, FIG. 2 (a) is a schematic plan view of the snow melting tank 5, and FIG. 2 (b) is a view showing the water spray pipe 25. In FIG. 2A, illustration of a shooter 35 described later is omitted.

  The pipe 16 connected to the pumping pump 13 and the like is connected to a tank 23 provided below the snow melting tank 5. A plurality of water spray pipes 25 are connected to the upper surface of the tank 23. The water sprinkling pipe 25 is a tubular member for allowing water such as groundwater to flow into the snow melting tank 5 and has a shape in which, for example, the upper end of the steel pipe is closed. Accordingly, the groundwater or the like from the pump 13 is fed to the tank 23 and flows from the tank 23 to each sprinkling pipe 25.

  As shown in FIG. 1, the water spray pipe 25 stands up. In addition, as shown in FIG. 2B, the water spray pipe 25 is provided with a plurality of nozzles 29. The nozzle 29 is, for example, a hole provided in the water spray pipe 25 and is a part where water is sprinkled from the water spray pipe 25.

  A plurality of nozzles 29 are provided in the water spray pipe 25 at a predetermined interval. Further, the direction of the nozzle 29 may be not only one direction but also a plurality of directions. Moreover, you may change the direction and arrangement | positioning of the nozzle 29 for every watering pipe 25. FIG. The nozzle 29 is desirably provided above the water spray pipe 25 (for example, the upper half position of the water spray pipe 25).

  FIG. 3 is a view showing a state when snow is poured into the snow melting tank 5. As shown in FIG. 3A, the upper part of the snow melting tank 5 is normally closed with a lid 33. When the snow 31 is thrown in, the lid 33 is first opened.

  Next, as shown in FIG. 3B, the snow 31 is dropped into the snow melting tank 5. Usually, the snow after snow removal is hardened and is often a block of snow. However, the snow 31 dropped onto the plurality of water pipes 25 standing upward is partially broken and finely divided by the water pipe 25. In addition, the snow 31 that is not completely divided falls in the snow melting tank 5 so as to pierce the water spray pipe 25.

  In FIG. 3B, the snow 31 is stuck in the water spray pipe 25 and the snow 31 is stopped in the middle of the water spray pipe 25, but usually at a temperature of groundwater or the like flowing in the water spray pipe 25, The snow 31 in contact with the water spray pipe 25 is immediately melted, and a part of the water sprinkled from the water spray pipe 25 travels along the water spray pipe 25 to melt the snow 31, and the snow 31 is quickly melted into the snow melting tank 5. Falls below. Further, water is sprinkled from above the snow that has fallen by the nozzle provided in the water sprinkling pipe 25, and snow melting in the snow melting tank 5 proceeds.

  Below the snow melting tank 5, a pipe 27 connected to the adjacent heat storage tank 7 is provided. In addition, a shooter 35 that is inclined toward the pipe 27 is provided. The shooter 35 is a plate-like member for smoothly flowing water after snow melting, water sprinkled, and sherbet-like or small piece-like snow to the adjacent heat storage tank 7 via the pipe 27. Therefore, the water spray pipe 25 is provided so as to penetrate the shooter 35.

  As described above, the snow 31 introduced into the snow melting tank 5 is melted, and the melted water, the remaining snow, and the like are sent to the heat storage tank 7 as the next process. It is desirable that a heat insulating layer (not shown) is provided on the outer surface of the snow melting tank 5.

  Next, the heat storage tank 7 will be described. FIG. 4 is a view showing the heat storage tank 7 and the pit 9, FIG. 4 (a) is an elevation view, and FIG. 4 (b) is an enlarged view of a portion K in FIG. 4 (a). The heat storage tank 7 is provided with a pipe 27 through which water from the snow melting tank 5 flows. In addition, a plurality of resin blocks 37 are stacked and provided in the heat storage tank 7. In the figure, only the resin blocks 37 in the lower two stages and the uppermost stage are shown, and the other resin blocks 37 are not shown. The resin block 37 secures a space through which water flows. The water stored in the heat storage tank slowly flows through the storage space formed by the resin block 37 in the heat storage tank 7, and the temperature and the like are made uniform at this time. Further, the snow contained in the water flowing in from the snow melting tank 5 is completely melted while flowing between the resin blocks 37. Here, the resin block 37 is preferably configured to withstand pressure of earth and sand (earth pressure) around the side wall of the heat storage tank 7 and pressure of pavement surfaces such as earth and sand and asphalt covered on the upper surface of the heat storage tank. Moreover, as shown in FIG.4 (b), it is desirable not to expose the upper surface of the thermal storage tank 7 to the ground but to cover the upper cover 38 with earth and sand 44 for heat insulation. In this case, it is desirable to provide an inspection port 40 for inspecting the heat storage tank 7. The inspection port 40 is a work pit for performing periodic inspections in the tank. When the inspection port 40 is provided, the resin block 37 is not arranged at the portion corresponding to the inspection port 40 so as to communicate in the vertical direction, and the partition between the inspection port 40 and the resin block 37 is a removable type. A partition wall 46 made of a partition plate or a transparent partition plate is provided. The upper lid 38 is provided with a hole at a position corresponding to the inspection port 40, and a lid 42 that can be opened and closed is provided above the hole. The lid 42 has substantially the same thickness as the earth and sand 44, and the upper surface of the earth and sand 44 becomes flat. In addition, for example, a resin heat insulating material can be spread between the upper surface of the heat storage tank 7 and the coating layer formed of earth and sand or the outer periphery of the side face of the heat storage tank 7, as described above. If it does, heat insulation will improve further.

  A pipe 39 for connecting to the adjacent pit 9 is provided below the heat storage tank 7. The pit 9 is further provided with a pipe 43 for connecting to the adjacent permeation tank 11. The pipe 27 and the pipe 43 are provided at a predetermined height position. On the other hand, the piping 39 is provided at a position lower than the piping 27 and the piping 43. Therefore, for example, if the pipe 27 and the pipe 43 are the same height, water is stored up to the height of the pipe 27 and the pipe 43.

  The pit 9 is deeper than the pipe 39. Therefore, water is always stored in the pit 9, and the circulation pump 15 and the intermediate water pump 17 can pump out the water in the pit 9 as necessary. For example, the circulation pump 15 can be operated when the water temperature of the heat storage tank 7 is equal to or higher than a predetermined temperature or according to the amount of snow in the snow melting tank 5.

  As described above, the pit 9 can be integrated with the heat storage tank 7, and a pump can be arranged in the heat storage tank 7. In this case, the height of the pipe (pipe 39) for flowing out from the pipe 27 and the heat storage tank 7 may be set to a height corresponding to the stored water level of the heat storage tank 7.

  In addition, the outer periphery of the heat storage tank 7 is provided with a heat insulating material (not shown). As the heat insulating material, for example, polystyrene foam can be used.

Next, the permeation tank 11 will be described. FIG. 5 is a view showing the heat storage tank 11. When the water level of the pit 9 (heat storage tank 7) becomes higher than the pipe 43, the water in the pit 9 overflows and flows into the infiltration tank 11 from the pipe 43. A plurality of resin blocks 45 are provided in the permeation tank 11. The resin block 45 ensures a space through which water flows.
Here, the resin block 45 is preferably configured to withstand pressure of earth and sand (earth pressure) around the side wall of the infiltration tank 11 and pressure of pavement surfaces such as earth and sand and asphalt covered on the upper surface of the heat storage tank 11. . Moreover, like the heat storage tank 7, the upper surface of the infiltration tank 11 is not exposed to the ground but can be covered with earth and sand for heat insulation. In this case, similarly to the heat storage tank 7, it is desirable to provide the inspection port 49 by the partition wall 48 or the like. In addition, for example, a resin heat insulating material or the like can be spread between the upper surface of the infiltration tank 11 and the coating layer formed of earth and sand or on the outer periphery of the side surface of the infiltration tank 11, as described above. If it does, heat insulation will improve further.

  A water permeable sheet is provided below the permeation tank 11. Accordingly, water penetrates the ground from the permeation tank 11.

  As described above, according to the snow melting device 1 according to the embodiment of the present invention, since the plurality of water sprinkling pipes 25 standing up in the snow melting tank 5 are provided, the snow thrown into the snow melting tank 5 is scattered. It can be divided by the water pipe 25. In addition, the snow can be efficiently melted even with respect to the snow that is stuck into the water spray pipe 25. Furthermore, since the snow at the contact portion with the water spray pipe 25 is melted quickly, the snow can be quickly dropped downward without accumulating in the snow melting tank 5.

  In addition, since the heat storage tank 7 is provided, unmelted snow that has flowed out of the snow melting tank 5 is stored in the heat storage tank 7, and in this case, a sufficient time to make contact with the water in the heat storage tank 7 is ensured. Can melt snow.

  Moreover, since a part of the water stored in the pit 9 (heat storage tank 7) can be sent to the sprinkling pipe 25 by a pump and mixed with the groundwater and used, the pumping amount of the groundwater can be suppressed. For this reason, a sufficient amount of water can be secured, and snow melting can be performed efficiently.

  Moreover, since a part of water stored by the pit 9 (heat storage tank 7) can be utilized as middle water or can be made to flow into a drainage drain as waste water, water can be utilized more effectively. By providing a plurality of such snow melting devices 1 at predetermined locations in the area, problems such as carrying snow removed can be solved.

  Next, other embodiments will be described. In the following embodiments, constituent elements that perform the same functions as those of the snow melting device 1 shown in FIGS. 1 to 5 are assigned the same reference numerals as in FIGS.

  FIG. 6 is a view showing another embodiment of the watering pipe. Instead of the water sprinkling pipe 25 provided in the snow melting device 1, water sprinkling pipes 51 and 55 as shown in FIG. 6 may be used.

  As shown in FIG. 6A, the water spray pipe 51 is different from the water spray pipe 25 in that wings 53 are provided outward. A plurality of wings 53 are provided from the outer surface of the water spray pipe 51 toward the outside. In addition, in the example shown to Fig.6 (a), although four wings are provided radially centering on the water spray pipe 51, the number of the wings 53 is not restricted to this. Further, the wings 53 may be provided over the entire length in the longitudinal direction of the water spray pipe 51, but may be provided partially, for example, only above the water spray pipe 51.

  The wings 53 are made of steel, for example, and are joined to the water spray pipe 51 by welding or the like. The wing 53 has a function as a blade for efficiently dividing snow thrown in from above and a function as a reinforcement for preventing the water spray pipe 51 from being bent due to the weight of snow or the like.

  The water spray tube 55 shown in FIG. 6B is provided with spiral wings 57 spirally with respect to the axial direction of the water spray tube 55 on the outer periphery of the water spray tube 55. The spiral wing 57 is made of steel, for example, and is joined to the water spray pipe 55 by welding or the like. Similarly to the wing 53, the spiral wing 57 has a function as a blade for dividing the snow thrown from above and a function as a reinforcement for preventing the water spray tube 55 from being bent due to the weight of the snow.

  The water spray pipes 51 and 55 can be further rotated. For example, if a rotating part is provided at the joint with the tank 23 and the sprinkling pipe 55 is rotated together with the spiral feather 57, the effect of forcibly pushing snow downward can be obtained.

  It is not always necessary to replace all the water spray pipes 25 in the snow melting tank 5 with the water spray pipes 51, 55, and the like. For example, only the central water spray pipe in the snow melting tank 5 can be used as the water spray pipe 55, and the other water pipes can be used as the normal water spray pipe 25 or the like. In this case, only the central water spray tube 55 is slightly thicker than the other water spray tubes, and only the water spray tube 55 can be rotated.

  FIG. 7 is a view showing a snow melting tank 5 according to another embodiment. In the tank 23 provided in the snow melting tank 5 in the present embodiment, a vibrator 59 is provided. The vibration exciter 59 can apply vibration to the tank 23 in the horizontal direction, for example. The vibration transmitted to the tank 23 is transmitted to the water spray pipe 25 joined to the tank 23, and the water spray pipe 25 vibrates at a predetermined frequency. For this reason, the ability to divide snow by the water spray pipe 25 can be increased.

  In addition, the frequency of the vibration applied to the water spray pipe 25 is not specified. Also, it may be a very low frequency (swing rather than vibration). In this case, not only the vibrator 59 but other mechanical means or the like can be used to shake the sprinkler tube 25 to promote snow separation or the like, and any vibration imparting means can be used. . For example, when the water spray tube 25 is vibrated, an elastic body such as rubber that allows vibration (displacement) of the water spray tube 25 is allowed in a gap between the water spray tube 25 penetrating the shooter 35 and the shooter 35. A seal or the like may be provided, but the sealing mechanism for the gap between the water spray tube 25 and the shooter 35 may have any configuration as long as the vibration of the water spray tube is not hindered.

  FIG. 8 is a view showing a snow melting device 70 according to still another embodiment. The snow melting device 70 has substantially the same configuration as the snow melting device 1, but the configuration of piping and the like is different.

  The snow melting device 70 is further provided with pipes 71 and 73 with respect to the snow melting device 1. The pipe 71 is a pipe for connecting the pipe 16 and the heat storage tank 7 and feeding water to the heat storage tank 7 (in the direction of arrow J in the figure). As described above, if the water temperature in the heat storage tank 7 is not high to some extent, unmelted snow or the like is not easily melted, and snow may accumulate in the heat storage tank 7 or the like. Therefore, groundwater with a high water temperature can be added to the heat storage tank 7 as necessary, so that the water temperature in the heat storage tank 7 does not become too low.

  The pipe 73 connects the pipe 16 and the snow melting tank 5 and sprays water near the upper end of the shooter 35 in the snow melting tank 5. The snow thrown into the snow melting tank 5 is crushed by the water sprinkling pipe 25 and reaches the shooter 35 provided below the snow melting tank 5. Therefore, it is necessary to quickly melt the snow accumulated on the shooter 35 and send it to the heat storage tank 7. For this reason, water flows from the upper side of the shooter 35, and water is sent to the heat storage tank 7 side while melting the snow on the shooter 35.

  The pipes 71 and 73 are connected to the pipe 16, but may be connected to the pipe 19. Further, a valve may be provided in each pipe, and the flow of water flowing through each pipe may be controlled.

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  For example, a plurality of heat storage tanks can be provided for one snow melting tank 5. In this case, the intermediate water pump 17 and the circulation pump 15 can be installed separately. Moreover, if the snow melting tank 5 has sufficient snow melting ability, the snow melting tank 5 and the infiltration tank 11 can also be directly connected.

DESCRIPTION OF SYMBOLS 1, 70 ......... Snow melting apparatus 3 ......... Pumping part 5 ......... Snow melting tank 7 ......... Thermal storage tank 9 ......... Pit 11 ......... Osmosis tank 13 ......... Pumping pump 15 ......... Circulation pump 16 ......... Piping 17 ... …… Medium water pump 19 ......... Piping 21 ......... Drawing 23 ......... Tank 25 ......... Water sprinkling pipe 27 ......... Piping 29 ......... Nozzle 31 ......... Snow 33 ... ... lid 35 ... ... shooter 37, 45 ... ... resin block 38 ... ... upper lid 39, 41, 43 ... ... piping 40, 49 ... ... inspection port 42 ... ... lid 44 ... ... earth and sand 46, 48 ......... Partition walls 51, 55 ......... Water sprinkle pipe 53 ......... Feather 57 ......... Helix feather 59 ...... Exciters 71, 73 ......... Piping

Claims (8)

A snow melting device that melts snow with groundwater,
A first pump that pumps up groundwater;
A snow melting tank for sprinkling ground water pumped by the first pump to melt snow;
An infiltration tank for infiltrating the water flowing out of the snow melting tank into the basement;
Comprising
In the snow melting tank, a plurality of sprinkling pipes that are connected to the first pump and stand upward are provided, and the ground water is sprinkled from the sprinkling pipes. Between the snow melting tank and the permeation tank, a heat storage tank is provided,
The heat storage tank can store water from the snow melting tank to a predetermined water level,
A second pump capable of pumping a part of the water stored in the heat storage tank is provided, and the water pumped out by the second pump can be sent to the sprinkler pipe together with the ground water. The snow melting device according to claim 1, wherein: A third pump capable of pumping a part of the water stored in the heat storage tank is further provided;
3. The snow melting apparatus according to claim 2, wherein the water pumped out by the third pump flows into a drainage ditch or is used as intermediate water.   The snow melting device according to any one of claims 1 to 3, further comprising vibration means capable of vibrating the water spray pipe.   The snow melting device according to any one of claims 1 to 4, wherein a wing is provided on an outer surface of the water spray pipe toward the outside of the water spray pipe.   The snow melting device according to any one of claims 1 to 4, wherein a spiral wing is provided on an outer surface of the water spray pipe in an axial direction of the water spray pipe.   The snow melting device according to claim 6 or 7, further comprising a rotating means capable of rotating at least a part of the plurality of water spray pipes. A snow melting method that melts snow with groundwater,
A first pump, a snow melting tank connected to the first pump, a heat storage tank connected to the snow melting tank, and a second pump capable of pumping a part of the water stored in the heat storage tank And a snow melting device comprising a permeation tank into which water that has flowed out of the heat storage tank flows,
Pumping groundwater with the first pump and pumping up part of the water stored in the heat storage tank with the second pump;
The first and second pumps sprinkle snow from a plurality of water spray pipes standing upward in the snow melting tank to melt the snow in the snow melting tank,
A part of the water and snow that flowed out of the snow melting tank is stored in the heat storage tank to completely melt the snow,
A snow melting method, wherein water flowing out of the heat storage tank is allowed to permeate underground with the infiltration tank.

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