JPS63151703A - Snow melting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a snow melting machine that puts snow into a snow melting box and melts it by heating.

(Prior art) Snow melting machines, which have traditionally been used to treat snow in regions with heavy snowfall, scoop up snow with a shovel, put it into a hot water tank, and melt it with hot water, as described in Japanese Patent Publication No. 47-30331. Kasumono is commonly used. FIG. 10 and FIG. 11 are a vertical front view and a vertical side view, respectively, of the above-mentioned known snow melting machine.

In these figures, the above snow melting machine has wheels 74 on the bottom.
．． Fusion 2 with 75! : Machine body 73 and this body 7
A hot water tank 76 provided at the top of 3 and having an open top surface, and a hot water tank 7
6, and a heating chamber 79, 80, 81. 6, which is provided in communication with the hot water tank 76.
82 and 83, a heat insulating member 84 provided on the outside of these heating chambers to cover them, a burner 85 attached to the main body 73 to heat each heating chamber, and a main body 7.
The ski 78 is detachably attached to the bottom of the ski 3.

When there is snow on the path, this snow melting machine attaches skis 78 to the bottom and runs on the snow surface, and when there is no snow on the path, removes the skis and rolls the wheels 74 and 75 into contact with the ground. The device is moved to a predetermined location while pushing the push rod 87. To melt the snow, the fuel supply device 88
Fuel oil is sent to the burner 85 and the burner 85 is ignited.

Then, the oil burns in the combustion chamber 86, and the combustion gas passes through the flue 89 and is discharged from the chimney 90. During this time, the water in each heating chamber around the combustion chamber is heated and becomes hot water, and this hot water is turned into hot water. 76 cycles. Therefore, the accumulated snow is scooped up with a shovel and continuously thrown onto a snow receiving net 77 in a hot water tank 76. The thrown snow is sequentially melted by the hot water in the hot water tank, and the melted snow mixes with the hot water in the hot water tank 76, and is also heated by the burner 8.
The heat from Step 5 keeps the hot water always at a predetermined temperature or higher.

This snow melting machine has a snow catching net 77 in the hot water tank 76, so that the snow placed on the net comes into contact with the hot water on the bottom side as well, increasing the contact surface with the hot water, making it very efficient. Can melt snow. In addition, the hot water in the hot water tank 76 is
1 to the outside through a hose 92 and can be used as bath water or the like. Furthermore, since the outer surfaces of the heating chambers 79 to 83 are covered with a heat insulating material 84, they can be sufficiently kept warm and will not cause burns if touched.

(Problems to be Solved by the Invention) As described above, the conventional snow melting machine is of a type in which a heating chamber heated by a burner is provided in a hot water tank, and snow is melted by hot water around the heating chamber. With this type of system, when snow is falling or has just fallen, the warm water comes into contact with the snow and can quickly melt the snow.

However, when the snow is compacted or partially frozen, there is a problem in that hot water does not penetrate into the snow and the speed of snow melting decreases. In order to increase snow melting efficiency in a snow melting machine that has a heating chamber to melt snow, like a known snow melting machine, the combustion gas passage in the heating chamber should be made longer to effectively utilize the thermal energy of the combustion gas. However, in this respect, it is thought that conventional methods still do not have sufficient heat utilization. For example, there is still room for improvement, such as the fact that the exhaust gas from the chimney, which is emitted with considerable heat, is not used for snow melting.

The present invention has been made in view of the above points. Steam is generated in a boiler equipped with a long combustion gas passage housed in a snow melting box, and this steam and exhaust gas from a chimney are transferred to the accumulated snow inside the snow melting box. This highly efficient and safe system not only melts snow by blowing it onto the surface of the boiler, but also melts snow by heating the boiler's outer panel.It can quickly melt not only normal snow but also compacted snow and frozen snow. The object of the present invention is to provide a snow melting machine that is easy to handle.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 4 corresponding to embodiments.

The present invention includes a snow melting box 10 with an open top and a running tool 12 on the bottom, and a boiler 20 equipped at one end with a burner 14 installed through the center of the lower half of one side plate 16 of the snow melting box. This boiler was used as a heating source to melt the snow.

The boiler 20 has a double structure in which a heating cylinder 40 is housed in an outer shell 34, and the outer shell 34 connects the snow melting box 10 to the front and rear surfaces of the snow melting box 10 through spaces 22 and 24, respectively. It is housed in the snow melting box 10 and is fixed to the bottom of the snow melting box 10, and the upper surface is provided with steam ejection projections 28, . There is a drain pipe 3 on the bottom that communicates with parts 22 and 24.
In addition, an exhaust hole 3 is provided at the downwardly sloping starting end of the melt water flow lower plate 26 toward the top of the melt water flow lower plate 26.
8,... are opened.

The heating cylinder 40 is equipped with the burner 14 at one end, has an opening 44 at the other end close to the inner surface of the outer shell side plate 42 on the opposite side from the chimney 36, and has an evaporator on the outer periphery that communicates with the steam jetting projection 28. A chamber 46 is provided around the evaporation chamber 46 and the outer shell 34
A flue 48 communicating with the chimney 36 from the opening 44 is formed between the inner side of the chimney 36 and the chimney 36, and is housed and fixed within the outer shell 34. A tank 50 (hereinafter abbreviated as tank) is attached to the melt water flow lower plate 26 at its downwardly inclined end portion, and the melt water receiver is equipped with an overflow pipe 59.
A boiler water supply pipe 52 is disposed between the snow melting box 10, a drain cock 54 is attached to the boiler water supply pipe 52, and a fuel supply device 58 for burning the burner 14 is disposed outside the snow melting box IO.

(Function) Next, the snow melting machine of the present invention has the following snow melting effect by the above means. That is, first, the traveling tool 1
2, the snow melting machine is moved to an appropriate location, and water is supplied from the tank 50 to the heating cylinder 40 using a bucket or the like. Then, the evaporation chamber 46 of the heating cylinder 40 is automatically supplied with water from the tank 50 via the boiler water supply pipe 52.

Next, fuel oil is supplied to the burner 14 from the fuel supply device 58 and ignited. Then, combustion of the burner 14 is confirmed, and the snow is scooped up with a shovel and thrown into the snow melting box 10 from the top of the opening. This injection will continue as the snow melts. The burner 14 causes the generated high-temperature combustion gas to flow through the inside of the heating cylinder 40 to the terminal entrance 44, and then passes through the flue 48 from the opening 44 to the exhaust hole 3 of the chimney 36.
8, the melt water is discharged toward the lightning placed on the lower plate 26. This flow of combustion gas heats the evaporation chamber 46 to generate steam, and the front and rear surfaces of the outer shell 34 and the melt water flow plate 2
Heat 6. Therefore, the heated outer shell 34 is
The lightning on the meltwater flow plate 26 and the lightning in the space 22.24 is melted, and the chimney 36 melts the snow on the melt water flow plate 26 with exhaust gas from the exhaust holes 38, .

On the other hand, the steam jetting protrusion 28 communicating with the evaporation chamber 46 is
The melt water flow plate 26 injects high-temperature water vapor generated in the evaporation chamber 46 onto the snow on the melt water flow plate 26 to melt it. As a result, the water flows down into the tank 50. In addition, the above-mentioned space 22.2
The lightning water melted in step 4 automatically flows into the bottom water chamber 30 of the shell 34 communicating with the space 22.24, cooling the bottom of the shell 34. Furthermore, the spaces 22 and 24 prevent the front and rear surfaces of the snow melting box 10 from rising in temperature due to snow thrown into the core.

The tank 50 receives the snowmelt water flowing down the meltwater flow down plate 26, supplies a portion of it to the evaporation chamber 46 via the boiler water supply pipe 52, and discharges the remaining water to the outside through the overflow pipe 59.

The drain cock 54 drains the water in the evaporation chamber 46 and the tank 50, and the drain pipe 32 of the bottom water chamber 30 drains the water in the bottom water chamber 30.

(Embodiment) An embodiment of the snow melting machine according to the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway plan view of the snow melting machine of the present invention. In the figure, a snow melting box 10 has an open top so that accumulated snow can be poured into it, and a running tool 12 is provided at the bottom for movement. It is preferable that the running tool 12 is provided with skis that can be attached and detached below the illustrated wheels (No. 10).
(see figure), 11 is a hand bar detachably provided on the upper side of the snow melting box 10. Although not shown in the drawings, it is convenient if the push rod 11 can be attached to the side opposite to that shown in the drawings.

20 is a boiler, which is equipped with a burner 14 at one end that penetrates through the center of the lower half of one side plate 16 of the snow melting box 10, and whose bottom part is fixed 13 on the bottom of the snow melting box 10.
There is a space 22 in front of the snow melting box 10 and between the rear plate 18 and 19.
．． 24 (see FIG. 2) and housed in the snow melting box 10.

Furthermore, referring to FIG. 2 showing the cross section taken along the line A-A in FIG. , outer shell body 34
is formed into a trapezoidal hollow body with front and rear symmetry, and is shaped to gradually expand upward so that the snow loaded into the snow melting box 10 can easily enter the space 22, 24. The outer shell 34 is formed into a melt water flow down plate 26 whose upper surface is sloped downward toward the side opposite to the burner 14 and has steam jet projections 28, . . . arranged on its surface, as shown in FIG. , the bottom of the space 2
2.24 is formed in the bottom water chamber 30 communicating through the through holes 15, . ,・
A chimney 36 with an opening is installed vertically. 9 in the diagram
32 is a drain pipe fixed to the bottom of the bottom water chamber 30, and 31 is a hose detachably attached to the drain pipe 32. The melt water flow lower plate 26 has a gutter side plate 23 by slightly protruding the upper ends of the front plate 17 and the rear plate 21 of the outer shell 34, and has a gutter-like cross-sectional shape.

Next, the heating cylinder 40 is equipped with the burner 14 at the center of one end so that the inside is heated, and the other end is connected to the chimney 36.
(see FIG. 3), an evaporation chamber 46 is formed on the outer periphery as shown in FIG. 28 is fixed at the base, passes upward through the melt water flow plate 26, and is disposed on the surface of the melt water flow plate 26 to prevent water leakage.

Then, the heating cylinder 40 is inserted into the chimney 3 from the opening 44.
6 is connected to the inner surface of the outer shell 34 and the evaporation chamber 4.
6, and is accommodated and fixed within the outer shell 34.

Referring to FIGS. 8 and 9, the steam ejection protrusion 28 described above is constructed by fixing the base of the pipe 25 to the upper surface of the evaporation chamber 46, and attaching a hemispherical cap 27 to the top of the vibrator in a convex manner. The hemispherical cap 27 is designed so that the steam generated in
An appropriate number of blowholes 29, .

In addition, the evaporation chamber 46 has an upper surface slightly higher than the top of the heating cylinder 40, and forms a rectangular box-shaped steam reservoir 47 that extends in the front and rear directions at right angles to the longitudinal center line.
The steam ejection protrusion 28 described above is provided on the upper surface of the front and rear end portions. A is a predetermined water level in the evaporation chamber, and is located at a position where a slight space 45 is formed on the back side of the upper surface of the steam reservoir section 47. When this space 45 is provided, the pressure of the steam generated in the evaporation chamber 46 increases slightly, and the steam starts to be ejected from the fumarole hole 29 of the steam ejection protrusion 28, and the melt water flows onto the lower plate 26. The high-temperature steam can penetrate deep into the snow and melt it quickly.

Although the steam ejection protrusions 28 in the embodiment are arranged parallel to each other in the front and back, left and right, they may also be arranged in a staggered manner.
Increase or decrease the number appropriately depending on the size.

Next, referring to FIGS. 3 and 7, the chimney 36 has its upper surface sealed, and a flue partition plate 33 whose base is fixed to the upper surface of the melt water flow lower plate 26 is erected inside the chimney 36. A gap 35 is formed between the upper end and the back surface of the chimney top plate, and an inlet 37 is provided on the upper surface of the outer shell 34 near the base of the flue partition plate 33 on the opposite side from the exhaust hole 38 (see FIG. 7). ). Further, an exhaust guide plate 39 is fixed to the exhaust hole 38 so as to diagonally downwardly partition the hole into upper and lower parts.

When the chimney 36 is configured as described above, the combustion gas, which still has considerable heat, passes through the flue 48 from the opening 44 of the heating cylinder 40 and flows into the chimney 36 from the inlet 37 , and the flue partition plate 33 It once rises along the line, passes through the gap 35 and descends, heating the entire chimney 36, and is vigorously released from the exhaust hole 38 into the melt water flow lower plate 26 from above as exhaust gas diagonally downward. It becomes like this. Therefore, the exhaust gases enter the lightning on the meltwater flow plate 26 and become available for melting snow.

Although not shown, the exhaust hole 38 may have several rectangular through holes vertically arranged in parallel instead of round holes, and an exhaust guide plate may be provided along the upper edge of the through hole.

As shown in FIGS. 3 and 5, the opening 44 of the heating cylinder 40 has a lower half that is open and communicates with the flue 48, and an upper half that has a hole in the shielding plate 41 as shown in FIG. A is drilled and the shielding plate 41
A flue chamber 49 formed by the outer shell side plate 42 (see FIGS. 3 and 6) and the horizontal partition plate 43 (see also FIG. 4),
It communicates with the flue 48 through the hole A mentioned above. Reference numeral 51 denotes a through hole bored in the center of the upper end of the shielding plate 41, which communicates the flue chamber 49 with the upper part of the flue 48. This flue chamber 49 allows the combustion gas generated by the burner 14 to pass through the inside of the heating cylinder 40 and flow into the flue chamber 49 from the hole A to remain there, and then flow into the flue 48 through the through hole 51. let Therefore, by providing the flue chamber 49, the flue chamber 49
The combustion gas inside warms the vicinity of the downwardly inclined end portion of the melt water flow lower plate 26, and further flows into the lower side of the melt water flow lower plate 26 from the hole A,
Since the lower surface of the melt water flow plate 26 is heated, the melt water flow plate 26 is heated evenly, and lightning on the melt water flow plate 26 can be quickly melted.

Next, in Figures 2, 3 and 6, 53.55
is a fuel saving plate fixed to the inner periphery of the heating cylinder 40, which sequentially closes the upper and lower halves of the heating cylinder 40 toward the opening 44 at the terminal end, so that the streamlines shown in FIG. like burner 1
The combustion gas of No. 4 is pulsated up and down to heat the inside of the heating cylinder 40 evenly. Reference numerals 57 and 57 in FIGS. 4 and 6 are flue partition plates, which provide space between the front and rear surfaces of the heating cylinder 40 and the inner surface of the outer shell 34.
(Also see Figure 2)
Combustion gas holes 56 are bored at appropriate pitches. When this flue partition plate 57.57 is provided, as shown in FIG. passes through the gas vent 56 and rises above the flue partition plate 57;
It flows into the chimney 36. Therefore, the combustion gas can evenly heat the heating cylinder 40 from the outside.

Next, in FIG. 1, the tank 50 is connected to the melt water flow plate 26
The overflow pipe 59 is attached to the downwardly sloping end portion of the evaporation chamber 460, and the overflow pipe 59 is installed so that the overflow water level shown in FIG. Reference numeral 60 shows a portion of a hose that is detachably attached to the overflow pipe 59. Hot water generated by snow melting can be taken out from the tank 50 with a hose 60 and used as bath water.

Reference numeral 61 in FIGS. 1 and 3 is a window section with a part of the side surface of the snow melting box 10 cut out to the width of the tank 500, so that the snow melt water flowing down on the melt water flow down plate 26 passes through and enters the tank 50. It was established in Referring also to FIG. 4, the boiler water supply pipe 52 communicates between the bottom of the tank 50 and the bottom of the evaporation chamber 46, and 61 in FIG. 2 communicates from the boiler water supply pipe 52 to the bottom of the evaporation chamber 46. It is a branch pipe. 54 is a drain cock, so that water can be drained from the tank 50 and the evaporation chamber 46.
It is provided in the lower part of the boiler water supply pipe 52.

Although not shown, the tank 50 is placed inside the snow melting box 10 and glued to the end of the melt water flow down plate 26, and most of the boiler water supply pipe 52 is also placed inside the snow melting box 10, and the overflow pipe is 59
It is also possible to make the drain cock 54 come out of the snow melting box 10. In the figure, reference numeral 63 denotes a reinforcing plate that is hung down and fixed near the inside of one side plate of the snow melting box 10. A fuel supply device 58 is provided at an appropriate location outside the snow melting box 10, and supplies fuel oil to the burner 14 for combustion.

In the embodiment, a fuel tank 65 is attached above the burner 14 via a frame plate 64 fixed to the side plate 16 of the snow melting box 10,
From the fuel tank 65 to the fuel pipe 66, the fuel cock 67,
Fuel oil is supplied to the burner 14 via the pump 6B. In the figure, 69 is a plug, 70 is an electric cord, 71 is an electrical equipment box, and 72 is a fan incorporating a motor. That is, when the fuel supply device 58 inserts the plug 69 into a suitable power source, opens the fuel outlet and drives the fuel pump 68 through the electrical equipment box 71, fuel oil is sent to the burner 14 and ignited.
The boiler 20 is forced to be ventilated by the rotation of the fan 72.

(Effects of the Invention) As explained above, the present invention accommodates a heating cylinder with an evaporation chamber around its outer periphery in an outer shell, and the combustion gas from the burner provided at one end of the heating cylinder is transferred to the heating cylinder. The boiler, which passes from the inside of the body through the opening at its terminal and outside, and discharges from the chimney installed on the upper surface of the outer shell on the burner side, is connected to the snow melting box by forming a space between the front and rear surfaces of the snow melting box. Depending on the configuration housed within,
This makes it possible to make the combustion gas passage longer3 and to make the top, front, and rear surfaces of the boiler a wide heating surface, so the thermal energy generated by the burner can be fully utilized and fed into the snow melting box. A snow melting machine capable of efficiently melting accumulated snow can be obtained. In particular, the upper surface of the outer shell is provided with steam ejection protrusions, and is also used as a melt water flow lower plate through which melt water flows down, and a chimney installed on the melt water flow lower end side of the melt water flow lower plate is installed to direct exhaust gas into the melt water flow. By using a structure that releases air onto the lower plate, steam and exhaust gas are sprayed onto the snow deposited in the snow melting box, and can be used not only against normal lightning, but also against compacted snow conditions and hard-to-melt snow that has hardened into ice. Steam and exhaust gases will be able to enter better and the snow melter will be able to melt snow quickly.

On the other hand, in terms of safety, there is a bottom ice chamber that communicates with the space formed between the front and rear surfaces of the outer shell and the inner surface of the snow melting box, so the ice that is melted in the space is Since the ice flows into the bottom ice chamber and cools the bottom, there is no fear of fires caused by overheating of the bottom. In addition, the above-mentioned space melts lightning and does not directly transmit the heat of the boiler to the front and rear surfaces of the snow melting box.Therefore, there is no risk of burns even if you touch the outer periphery of the snow melting machine. Become something.

In terms of handling, a tank is installed at the downstream end of the meltwater flow plate, and water is supplied from this tank to the evaporation chamber via the boiler water supply pipe, so the snowmelt water automatically evaporates during snow melting work. Water will be supplied to the room and the boiler will not be damaged by dry firing.

Since the tank is equipped with an overflow pipe, the snowmelt water supplied to the evaporation chamber can be automatically drained, and if necessary, the drained water can be used as bath water. Furthermore, the snow melting box is equipped with a traveling tool on the bottom and a fuel supply device on the outside, so it can be easily moved to a desired location and immediately heats the boiler by supplying fuel oil to the burner on the spot. I can do it. In addition, the bottom ice chamber of the boiler is equipped with a drain pipe, and the evaporation chamber and tank are drained with drain condensers, so water can be easily drained from the boiler when not in use to prevent breakdowns due to freezing or corrosion. can.

As described above, according to the present invention, it is possible to efficiently melt accumulated snow by effectively utilizing the thermal energy generated by the burner, and to provide a snow melting machine that is highly safe, easy to handle, and has extremely low failure rates. A great effect can be obtained by being able to provide

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view of a snow melting machine according to the present invention, Fig. 2 is a vertical side view taken along the line A-A in Fig. 1, and Figs. 3 and 4 are respectively Fig. 1 B-- A vertical sectional front view including a partial breakage as viewed from the arrow B line and the arrow C-C, FIG. 5 is the 1rI! J
6 is a cross-sectional plan view of the main part as seen from the line E-E in FIG. 2, and FIG. Fig. 8 is a plan view of the main part with a part taken out, Fig. 9 is an enlarged longitudinal sectional side view taken along line G-G in Fig. 8, Fig. 10 and Fig. 11 are respectively FIG. 2 is a vertical front view and a vertical side view of a conventional snow melting machine. 10. Snow melting box 12. Running tool 14. Burner 16. Snow melting side plate 20. Boiler 22. 24. Space 26. Melt water flow down plate 27. Hemispherical cap 28. Steam jet projection
29... Fumarole 30... Bottom water chamber 32... Drain pipe 34... Outer shell body 36... Chimney 38... Exhaust hole
39. Exhaust guide plate 40. Heating cylinder 42.
- Outer shell side plate 44... Opening 46... Evaporation chamber 4
8. Flue 50. Melt water receiver is tank 52. Boiler water supply pipe 53. 54. Fuel saving plate 54.
Drain conch 58...Fuel supply device 59...Overflow pipe Fig. 2 I4...Burner 38...Exhaust hole 22...Space 8546...Evaporation chamber 24...Space part I8...Fue duct Fig. 5 441. Opening Fig. 6 Fig. 7

Claims (1)

[Claims] 1. Snow melting box 10 with an open top and a running tool 12 at the bottom
A boiler 20 having one end equipped with a burner 14 passing through the center of the lower half of one snow melting box side plate 16 is housed, and this boiler 20 is installed between the front and rear surfaces of the snow melting box 10, respectively. Snow melting box 10 via spaces 22 and 24
The upper surface is accommodated and fixed in the steam jetting protrusion 28,
. . , a melt water flow down plate 26 which is sloped downward toward the side opposite to the burner 14, and a bottom water chamber 30 whose bottom part communicates with the spaces 22 and 24 and has a drain pipe 32 on the bottom surface, An outer shell 34 is provided with a chimney 36 having exhaust holes 38, . , the other end is an opening 44 close to the inner surface of the outer shell side plate 42 on the opposite side from the chimney 36, and an evaporation chamber 46 communicating with the steam jetting projection 28 is provided around the outer periphery, and the evaporation chamber 46 and the outer shell are connected to each other. A flue 48 is formed between the opening 44 and the chimney 36, and a heating cylinder 40 is fixedly installed inside the outer shell 34. A melt water receiving tank 50 with an overflow pipe 59 bonded to the terminal end thereof, a boiler water supply pipe 52 disposed between the melt water receiving tank 50 and the evaporation chamber 46, and a drain cock 54 attached to this boiler water supply pipe 52. and a fuel supply device 58 that is disposed outside the snow melting box 10 and burns the burner 14. 2. The snow melting machine according to claim 1, wherein the steam ejection protrusion 28 has a hemispherical cap 27 on the top thereof with a plurality of blowholes 29 formed on the outer peripheral surface. 3. The snow melting machine according to claim 1, wherein the exhaust hole 38 of the chimney 36 is fixed with an exhaust guide plate 39 that faces diagonally downward and partitions the hole into upper and lower sides. 4. The heating cylinder 40 has fuel saving plates 53 and 5 which sequentially close the inside of the upper and lower halves toward the terminal opening 44 alternately.
5 is fixedly installed on the inner periphery of the snow melting machine according to claim 1. 5. The overflow pipe 59 of the melt water receiving tank 50 is connected to the evaporation chamber 46
The snow melting machine according to claim 1, wherein the overflow level of the melt water receiving tank 50 is set to match the predetermined water level of the snow melting machine.