JP3023662B2 - Heat dissipating furnace for snow melting equipment and buried snow melting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radiating furnace for a snow melting apparatus having a novel construction, and a radiating furnace for the snow melting apparatus, which is buried underground by using the radiating furnace and melts and discharges snow there. (Hereinafter referred to as "buried snow melting apparatus").

[0002]

2. Description of the Related Art Conventionally, there are the following types. 1) A tank made of FRP or the like is buried in the ground, hot air or hot water is piped from a burner or boiler installed in another place to the tank, and hot air or hot water is blown out from around the tank to melt the snow put into the tank. 2) The tank is buried in the ground, and the snow put into the tank is pumped up by the heat of the radiator placed in the tank and the snowmelt water collected at the lower part of the tank, and the shower is sprayed to melt the snow. 3) The tank is buried in the ground, and the snow put into the tank is cooled by the heat from the radiating furnace and the heat radiating pipe connected to the heat radiating furnace. Melts snow with hot air and promotes snow melting with warm water collected in the lower part of the tank.

[0003]

The prior art has the following problems. According to 1) and 2) of the preceding paragraph, the depth of burying the device is increased due to the incidental facilities and the like, the configuration is complicated, and large facility costs are required. Also, maintenance of the apparatus is not easy, and the incidental facilities fail. Then, the entire device cannot be used. In addition, the protrusion on the ground becomes an obstacle at least except during work. On the other hand, large snow chunks must be crushed and thrown in to some extent. According to the method of 3), the burying depth of the tank can be made very shallow, the structure is simple, the maintenance is easy, and the projection is eliminated by closing the upper lid except during work, so that there is no protrusion. Can be used freely.

[0004] However, the method 3) still has a problem to be solved. That is, (1) Even if a large lump of snow is thrown in, the bridge is less likely to be formed, so that the work can be performed easily. (2) A method of further improving the snow melting efficiency by improving the heat radiating pipe and other heat radiating devices communicating with the heat radiating furnace. (3) If the inside of the snow melting room becomes overheated, the burner is automatically stopped to prevent trouble. (4) A filter is provided at the discharge part of the snowmelt water to prevent dust from flowing out to the drain pipe. The present invention has been made to solve the above problems.

[0005]

According to a first aspect of the present invention, a heat radiating furnace 5 disposed at the center in the longitudinal direction of a box-shaped frame 2 has a cylindrical shape, and a rear end portion thereof is rearward in a side view. A radiating chamber 6 formed in a box shape whose upper side narrows forward is in close contact with the radiating chamber 5, while an expansion chamber 9 provided only above the radiating furnace 5 is provided at the front end of the radiating furnace 5. A radiating tube 8 is disposed in a state of being opposed to each other, and is disposed below both side surfaces of the radiating furnace 5, a rear end thereof communicates with a front surface of the radiating chamber 6, and a front end vertically arranged upward.
A pair of horizontal radiating pipes 7 communicating with the
Is connected to the lower surface of the expansion chamber 9, and a mountain-shaped hood 5 </ b> A communicating with the heat radiation chamber 6 is provided on the upper surface of the heat radiation furnace 5.
Are arranged over the entire length from the upper end to the expansion chamber 9, both ends are closely attached and fixed to the heat radiation chamber 6, the expansion chamber 9, and a large number of horizontally long heat radiation slits 5 </ b> B are provided at both lower ends of the chevron hood.
Is provided, near the upper end of the rear inclined portion of the heat radiation chamber 6,
A pair of left and right radiating tubes 12 are provided to communicate with the radiating chamber 6, and the distal ends thereof are disposed so as to be quite downward in a round shape and outwardly facing each other. Portion is provided with an exhaust port 6A, the upper part of which is a hood 6B.
Are fixed, and two radiating tubes 10 and 11 are horizontally arranged symmetrically from the center on the front surface of the radiating chamber 6, each of which communicates with the radiating chamber 6. The radiator tube 10 is disposed closer to and above the radiator tube 11 than the radiator tube 11 and lower than the radiator tube 11, and has a length slightly shorter than the radiator tube 10.
A pair of radiating tubes 9A are provided symmetrically near the rear end of the expansion chamber 9 near the upper end of the rear surface, and are provided slightly horizontally toward the rear, and communicate with the expansion chamber 9, and the tip end of the expansion chamber 9 projects forward. In addition, a radiating furnace device for a snow melting device formed in a beveled state.

A buried snow melting apparatus according to a second aspect of the invention is configured as follows. The inside of the box-shaped frame 2 is partitioned into a machine room 3 and a snow melting room 3B by a partition plate 2F. A burner 4 is provided in the machine room 3, and a leading end 4A of the burner 4 is fitted with a partition plate 2F to communicate with a leading end of a cylindrical heat radiation furnace 5 in the snow melting chamber 3B. The rear end of the heat radiating furnace 5 is in close contact with and communicates with a substantially box-shaped heat radiating chamber 6. A pair of heat radiating tubes 7 are provided from the lower side near the both ends of the heat radiating chamber 6 to the outside of the heat radiating furnace 5 toward the front (in the direction of the machine room) in parallel and communicate with the heat radiating chamber 6. It is vertically raised with the tube 8 and communicates with the lower end of the expansion chamber 9 provided above the front end of the heat radiation furnace 5. A pair of heat radiating pipes 9A are provided rearward and slightly horizontally near the both side ends of the rear slope of the expansion chamber 9 to communicate with the expansion chamber 9.

At the center of the upper surface of the heat radiating furnace 5, a chevron hood 5 A is arranged over the entire length between the heat radiating chamber 6 and the expansion chamber 9 opposed at both ends thereof, and communicates with the heat radiating chamber 6.
A large number of slits 5B are provided in both sleeve portions. An exhaust port 6A is provided in the center of the inclined rear surface of the heat radiating chamber 6, and the upper surface thereof is covered with a hood 6B. On the upper side of the front surface of the heat radiating chamber 6, a pair of forward facing heat radiating tubes 10 and 11 are horizontally mounted at positions different in height and width symmetrically from the center of the heat radiating furnace 5 and communicate with the heat radiating chamber 6. Heat radiating pipe 10 and heat radiating pipe 1
The length is different from the one. Above the rear inclined portion of the heat radiating chamber 6, a heat radiating tube 12 is disposed symmetrically from the center so that its tip is curved downward and slightly outward, and both are communicated with the heat radiating chamber 6.

After the snow melting room, a drain pipe 13 is provided at the lower end,
The filtering device 14 is disposed in the snow melting room 3B corresponding to the position. The element 14B is put in a frame 14A that is in contact with the back plate 2D, and the upper surface is closed by a cover 14C. The frame 14A and the drain 13 communicate with each other. Frame 14
A cutout 14F is provided at the upper end of the front surface of A, through which snowmelt is discharged. The pair of left and right drain pipes 31 reaches the rear end along the left and right face plates 2B and 2C in the machine room 3, and communicates with both ends of the frame 14A of the filtration device. A screw hole 14E for discharging snowmelt water is provided on the front and lower portions of the frame 14A, and is closed with a plug 14D during work.

The burner 4 is accommodated in a burner box 3A for protection from surrounding moisture, and the upper surface is further covered with a burner upper cover 4B, and only the upper end side is open for ventilation. If the snow melting room 3B is overheated, a temperature sensor 33 is arranged in the snow melting room 3B in order to automatically stop the burner 4, while the machine room 3B is overheated.
A thermostat 35 is provided therein, and is functionally connected by a pipe 34. The operation is as follows. First, when the burner 4 is operated, hot air enters the radiating furnace 5, enters the radiating chamber 6, and then is sent in the order of the pair of radiating tubes 7 and 8, and passes through the expansion chamber 9 and the pair of radiating tubes. Hot air is discharged from the tip of 9A. Further, the hot air sent to the mountain-shaped hood 5 </ b> A arranged on the upper surface of the heat radiation furnace 5 and communicated with the heat radiation chamber 6 is:
It is discharged from a number of slits 5B provided on both sides of the hood.

On the other hand, heat is radiated forward from the heat radiating tubes 10 and 11 provided in the front of the heat radiating chamber 6, and the heat is radiated backward from the heat radiating tube 12 and the exhaust port 6 A provided in the rear of the heat radiating chamber 6. Hot air is discharged. If snow is thrown in this state, the heat of the high-temperature radiator 5, each radiator tube, the radiator chamber 6, the expansion chamber 9,
In addition, snow melting is performed very efficiently by the hot air flowing from each radiator tube, the slit 5B, and the exhaust port 6A. Further, the level of the snowmelt water in the snowmelt chamber is changed to the notch portion 14F of the filtration device 14.
Because of this, the melting effect of snow melting water is also added. The temperature sensor 33, the pipe 34, and the thermostat 35 automatically stop the burner 4 when the radiant furnace 5 or the radiant pipe of the snow melting chamber 3B becomes abnormally high due to the state of the empty firing, and trouble is caused. Has the effect of preventing. Since the filtering device 14 is provided at the rear end of the snow melting chamber 3B in correspondence with the position of the drain pipe 13, it is possible to prevent large dust from flowing out to the drain pipe 13.

[0011]

Embodiments of the present invention will be described with reference to the drawings. The radiant furnace device for a snow melting device as the first invention is:
It is configured as follows. The heat radiating furnace 5 arranged at the center in the longitudinal direction of the box-shaped frame 2 has a cylindrical shape, and its rear end is formed in a box shape in which the rear upper portion is narrowed forward in a side view. The heat radiating chamber 6 is in close communication with the
At the front end of the radiator 5, an expansion chamber 9 provided only above the radiator 5 is disposed so as to face the radiator 6.
A pair of horizontal heat radiating tubes 7 communicating with a heat radiating tube 8 vertically disposed upward and a front end communicating with a front surface of the heat radiating chamber 6 are provided below the both side surfaces of the heat radiating chamber 6. The upper end of the tube 8 communicates with the lower surface of the expansion chamber 9, and the upper surface of the heat radiation furnace 5 has a heat radiation chamber 6.
A hood 5 </ b> A that communicates with the
Are disposed over the entire length of the hood, and both ends are in close contact with and fixed to the heat radiating chamber 6 and the expansion chamber 9. At the lower ends of the chevron-shaped hood, a number of horizontally long heat radiating slits 5B are provided.
Near the upper end of the rear inclined portion of the heat radiating chamber 6, a pair of left and right heat radiating tubes 12 are disposed so as to communicate with the heat radiating chamber 6, and the front ends of the heat radiating pipes 12 are directed downward substantially in a round shape and outward to each other. In addition, an exhaust port 6A is provided in the center of the rear surface of the heat radiating chamber 6, and a hood 6B is fixed on the upper portion thereof,
On the front surface of the heat radiating chamber 6, radiating tubes 10,
The two radiating tubes 11 are horizontally arranged, each of which is in communication with the heat radiating chamber 6. The heat radiating pipe 11 is disposed slightly below the heat radiating pipe 11 and has a length slightly shorter than that of the heat radiating pipe 10.
A is provided slightly horizontally toward the rear and communicates with the expansion chamber 9, and its tip is formed in a beveled state with the upper side protruding forward.

Reference numeral 1 denotes a buried snow melting apparatus according to the second invention. 2
Is a box-shaped frame, the front plate 2A, the left and right face plates 2
B, 2C, a back plate 2D, and a bottom plate 2E are formed in an integrated box shape. The inside of the box-shaped frame 2 is partitioned by a partition plate 2F, and is divided into a machine room 3 and a snow melting room 3B. The machine room 3 is equipped with a burner 4, and the tip 4A of the burner 4 is fitted with a partition plate 2F and communicates with the end of the heat radiation furnace 5 provided in the snow melting chamber 3B.

The heat radiating furnace 5 is disposed at the center in the longitudinal direction of the box-shaped frame 2 and has a cylindrical shape. The rear end of the heat-radiating furnace 5 narrows forward at a rear side (drain side) in a side view. A heat-dissipating chamber 6 formed in a closed box shape is closely attached and fixed, and a heat-dissipating furnace 5
Is in communication with On the other hand, at the front end of the radiator 5
The expansion chamber 9 provided only above is disposed so as to face the heat radiation chamber 6.

A pair of horizontal radiating tubes 7 communicating with a radiating tube 8 vertically arranged upward at the front end and a rear end communicating with a front surface of the radiating chamber 6 below both side surfaces of the radiating furnace 5. Is arranged,
The upper end of the radiator tube 8 communicates with the lower surface of the expansion chamber 9. On the upper surface of the heat radiating furnace 5, a mountain-shaped hood 5A communicating with the heat radiating chamber 6 is provided.
Is disposed over the entire length from the heat radiating chamber 6 to the expansion chamber 9, and both ends are closely adhered and fixed to the heat radiating chamber 6 and the expansion chamber 9. Slit 5B is provided. Alternatively, the chevron-shaped hood may be intermittently welded to the heat radiating furnace 5 with a slight gap, and the non-welded portion may be replaced with the slit 5B.

Near the upper end of the rear inclined portion of the heat radiating chamber 6,
A pair of left and right radiating tubes 12 are provided so as to communicate with the radiating chamber 6, and the distal ends thereof are disposed so as to be quite downward in a round shape and outwardly facing each other. An exhaust port 6A is provided in the center of the rear surface of the heat radiating chamber 6, and a hood 6B is fixed to the upper portion thereof.

On the front surface of the heat radiating chamber 6, two heat radiating pipes 10 and 11 are horizontally arranged symmetrically from the center, each of which communicates with the heat radiating chamber 6, and a pair of the heat radiating pipes 11 are located near the center. The heat radiating pipe 10 is arranged on the upper side and further outward from the center of the heat radiating pipe 11 and below the heat radiating pipe 11, and has a length slightly shorter than the heat radiating pipe 10. Both ends of the heat radiating tubes 10 and 11 are formed in an obliquely cut state with the upper side protruding forward.

A pair of radiating tubes 9A are provided symmetrically to the rear, near the upper end of the inclined portion on the rear surface of the expansion chamber 9, slightly horizontally toward the rear, and communicate with the expansion chamber 9. It is formed in a beveled state that has come out before. Reference numeral 13 denotes a drain pipe, and a filtration device 14 is provided inside the rear plate 2D corresponding to the position. On the other hand, a pair of drain pipes 31 are provided from the inside of the machine room 3 toward the filtration device 14 in close proximity to the left and right face plates 2B and 2C of the box-shaped frame. 14A is a frame of the filtration device, 14B is an element housed in the frame 14A, and its dimensions are set so that there is a little room for the frame 14A.

A cover 14C is mounted on the frame 14A. 14J is a positioning guide for preventing the cover 14A from being displaced. Each of the pair of drain pipes 31 communicates with the inside of the frame 14A. A drain plug 14D is screwed into the screw hole 14E. 14G and 14H are holes for facilitating attachment and detachment of the element 14B and the cover 14A.

Reference numeral 16 denotes a one-sided upper cover, and the hinge 1
7 is opened and closed using the fulcrum as a fulcrum. Reference numeral 32 denotes a torsion coil spring whose coil portion is a spring bearing shaft 32D supported by a pair of bearing brackets 32C provided at the upper end of the left face plate 2B.
The lower linear portion 32A of the spring is supported by a spring retainer 32B, while the upper linear portion 32E of the spring is
It is supported by a spring receiver 18. Torsion coil spring 32
Is acting in the direction in which the top cover 16 is opened.

An arm 25 is fixed to one end of the upper cover 16, while a bracket 28 is fixed inside the left face plate 2 B corresponding to the position, and an arm 27 rotatable around a pin 26 as a fulcrum on the upper surface thereof. Operates and the top cover 16
Is opened, the notch 27A of the arm 27 bites into the slit 28A of the bracket 28, and the top cover is fixed at that position.

Next, a method of interlocking the opening and closing of the top cover and the opening and closing of the vent cover 24 of the machine room 3 will be described. 1
Reference numeral 9 denotes an arm fixed to the upper cover 16. The arms 20 A and 20 B are rotatably connected by pins 20 C and 20 D, and the other end of the arm 20 B is fixed to a shaft 21. Shaft 21
Is rotatably supported by the bearing 23 and the hole of the partition plate 2F. An arm 21A fixed to the shaft 21 is provided at a position of the shaft 21 corresponding to the vent cover 24.
Is equipped with the roller 22 via the.

When the upper cover is closed, the roller 2
2 is in a lowered position, does not push the vent cover 24, and closes the vent 24B with its own weight, but when the top cover 16 is opened, the shaft 21 is rotated by the movement of the link mechanism. As a result, the arm 21A is turned upward, and the vent cover 24, one side of which is supported by the hinge 24A, is pushed up by the roller 22 and opens diagonally,
The ventilation port 24B is configured to be opened.

A mechanism for closing and locking the upper cover 16 will be described. At the center on the tip side of the top cover 16,
A circular hole corresponding to the inner diameter of the housing 29A having a circular side surface is provided, and the housing 29A is fixed below the hole. A rotary shaft 29B is provided at the center of the housing, a square hole 29G is provided at the center thereof, and the housing is rotatably supported by a bearing 29D at the lower end. The shape of the square hole may be a shape other than a perfect circle other than a square. 29E is a retaining bolt, and 29F is a drain hole.

A horizontal arm 29C is provided on the side of the rotating shaft 29B.
Is fixed, and is set at a position where it enters directly below a stopper 30 fixed to the upper end of the left face plate 2B. 29H is a handle, and 29J is a square axis (an axis having a cross section of a shape corresponding to the square hole 29G) to be fitted into the square hole 29G, and is fitted into the square hole 29G and rotated. 29
K is a cover for the hole, which is opened and closed with the hinge 29L as a fulcrum. In the drawing, 2H is a spring passage groove, 20 is a link mechanism, 29M is a slit, 36 is a gantry, and 37 is a ground level.

[0025]

Since the present invention is configured as described above, the following effects can be obtained. When the flame emitted from the burner 4 passes through the radiator 5, it is heated and melts the snow. At the same time, the snowmelt water is heated and injected by maintaining the snowmelt water level up to the drain cutout portion 14 F at the rear end. Promotes melting of incoming snow.

The radiating chamber 6 communicated with the radiating furnace 5, the pair of radiating tubes 7, 8 communicating with the radiating furnace 5, and the expansion chamber 9 and the radiating tube 9A communicating with the radiating chamber 6 are also heated, and hot air is discharged from the end thereof. Also, hot air is sent into the mountain-shaped hood 5A communicating with the heat radiating chamber 6, and the hot air is discharged from many slits 5B to promote snow melting. On the other hand, also behind the snow melting room 3B,
The hot air is discharged rearward from the exhaust port 6A at the center of the heat radiating chamber 6 and the pair of heat radiating tubes 12 on the upper side to promote snow melting at the rear. As described above, heat is supplied to the entire snow melting chamber 3B from various directions, and since the heat radiating pipe 7 is located at a low position, the snow storage capacity is very large, and the snow melting efficiency is greatly improved. It is.

In the event that the temperature of the snow melting chamber becomes abnormally high, for example, when the snow melting chamber becomes empty, the thermostat 35 provided in the machine room 3 is actuated by the temperature sensor 33 provided in the snow melting chamber. The burner 4 stops and the trouble can be prevented. Although the snowmelt water is discharged from the drain pipe 13 at the rear end, it passes through the filtering device 14, so that it is possible to prevent large dust from flowing out. Further, even if moisture enters the machine room 3, the burner 4 is surrounded by the burner box 3A. When water accumulates to some extent, the water is drained by the pair of left and right drain pipes 31 through the rear filtration device 14, and The upper part is covered with a burner chamber cover 15, and the burner is protected from moisture.

When the snow melting operation is completed, the water in the snow melting room can be discharged by removing the plug 14D of the filtering device. Top cover 16 of entire box-shaped frame 2
Is a single-opening type, and is opened and closed with the hinge 17 as a fulcrum. To facilitate opening and closing, the base is equipped with a torsion coil spring 32 having a force in the direction of opening the top cover, and is configured to be lightly opened and closed. When the top cover 16 is opened, the ventilation port cover 24 of the machine room 3 is opened in conjunction therewith, so that the handling is easy. When the top cover is completely closed, the cover lock device 29 cannot be opened without permission, which is safe.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view.

FIG. 2 is a longitudinal sectional view.

FIG. 3 is a sectional view taken along line AA.

FIG. 4 is a sectional view taken along line BB.

FIG. 5 is a sectional view taken along line CC.

FIG. 6 is an enlarged side view showing the lock device when the upper cover is opened.

FIG. 7 is an enlarged rear view showing the relationship between an upper cover, a left side plate, and a torsion coil spring.

FIG. 8 is an enlarged side view showing the relationship between an upper cover, a left side plate, and a torsion coil spring.

FIG. 9 is an enlarged side view showing a relationship between opening and closing of a top cover and operation of a roller.

FIG. 10 is an enlarged cross-sectional view showing details of the cover lock device when the upper cover is closed.

FIG. 11 is an enlarged plan view showing details of a cover lock device of the upper cover.

FIG. 12 is an exploded perspective view showing details of a drain portion at a rear end.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 buried snow melting device 2 box-shaped frame 2A front plate 2B, 2C left and right face plate 2D back plate 2E bottom plate 2F partition plate 2H spring passage groove 3 machine room 3A burner box 3B snow melting room 4 burner 4A burner tip 4B burner upper surface Cover 5 radiator 5A chevron hood 5B slit 6 radiator chamber 6A exhaust port 6B hood 7,8 radiator pipe 9 expansion chamber 9A, 10,11,12 radiator pipe 13 drain pipe 14 filter device 14A frame 14B element 14C cover 14D plug 14E Screw hole 14F Notch 14G, 14H
Hole 14J Positioning guide 15 Burner chamber cover 16 Top cover 17 Hinge 18 Spring support 19 Arm 20 Link mechanism 20A, 20B
Arm 20C, 20D Pin 21 Axis 21A Arm 22 Roller 22A Axis 23 Bearing 24 Vent cover 24A Hinge 24B Vent 25 Arm 26 Pin 27 Arm 27A Notch 28 Bracket 28A Slit 29 Cover lock device 29A Housing 29B Rotating shaft 29C Arm 29E Bolt 29F Drain hole 29G Square hole 29H Handle 29J Square shaft 29K Cover 29L Hinge 29M Slit 30 Stopper 31 Drain pipe 32 Torsion coil spring 32A Spring lower linear portion 32B Spring retainer 32C Bearing bracket 32D Spring receiving shaft 32E Spring upper straight line Part 33 Temperature sensor 34 Pipe 35 Thermostat 36 Mount 37 Ground level

Claims (2)

(57) [Claims] 1. A radiating furnace (5) arranged at the center in the longitudinal direction of a box-shaped frame (2) has a cylindrical shape, and its rear end has a front upper part on a rear side in a side view. A radiating chamber (6) formed in a narrow box shape is in close contact with the radiating furnace (5), while an expansion chamber (9) provided only above the radiating furnace (5) is provided at the front end of the radiating furnace (5). It is arranged so as to face the chamber (6), the rear end communicates with the front surface of the heat radiating chamber (6) below the both sides of the heat radiating furnace (5), and the front end is arranged vertically upward. A pair of horizontal radiator tubes (7) communicating with the radiator tubes (8)
The upper end of the radiator tube (8) communicates with the lower surface of the expansion chamber (9), and the upper surface of the radiator furnace (5) has a chevron hood (5A) communicating with the radiator chamber (6). It is disposed over the entire length from the heat radiating chamber (6) to the expansion chamber (9), and both ends are closely attached and fixed to the heat radiating chamber (6) and the expansion chamber (9). A large number of horizontally long heat-dissipating slits (5B) are provided, and a pair of right and left heat-dissipating tubes (12) are disposed near the upper end of the rear inclined portion of the heat-dissipating chamber (6). The distal end is disposed so as to be quite downward in a round shape and facing outward from each other, and an exhaust port (6A) is provided at the center of the rear surface of the heat radiation chamber (6).
A hood (6B) is fixed to the upper part, and a radiator tube (1) is provided symmetrically from the center on the front surface of the radiator chamber (6).
0, 11) are horizontally arranged, each communicating with the heat radiating chamber (6). A pair of heat radiating tubes (11) are located near the center and above, and the heat radiating tubes (10) are , Radiator tube (1
1) It is arranged further outward from the center and below the radiator tube (11), and has a longer length than the radiator tube (10).
1) is configured to be slightly shorter, and a pair of radiator tubes (9A) is provided slightly horizontally rearward symmetrically near the upper end of the inclined portion on the rear surface of the expansion chamber (9). A heat dissipating furnace device for a snow melting device, wherein the heat dissipating device is in communication with the tip portion, and an upper end thereof is formed in an obliquely cut state. 2. The inside of a box-shaped frame (2) is partitioned by a partition (2F) into a machine room (3) and a snow melting room (3B), and a burner (4) is provided in the machine room (3). Department (4
A) is communicated with the tip of the cylindrical radiator furnace (5) in the snow melting chamber (3B), and the rear end of the radiator furnace (5) is connected to the radiator chamber (6).
A pair of radiator tubes (7) is provided from the lower side near both ends of the radiator chamber (6) to the outside of the radiator furnace (5) in a parallel and forward direction. The front end is vertically raised with a radiator tube (8), communicates with the lower end of an expansion chamber (9) provided above the front end of the radiator (5), and is connected to the rear slope of the expansion chamber (9). A pair of radiating tubes (9A) are provided slightly horizontally rearward near both ends to communicate with the expansion chamber (9), and the radiating chamber is opposed to the center of the upper surface of the radiating furnace (5) at both ends. (6) and an expansion chamber (9), a chevron hood (5A) is arranged and communicated with the heat radiating chamber (6), and a large number of slits (5
B), and an exhaust port (6A) is provided at the center of the inclined rear surface of the heat radiating chamber (6).
A pair of forward-facing radiating tubes (10, 11) are horizontally mounted at positions different in height and width symmetrically from the center of the radiating furnace (5) so as to communicate with the radiating chamber (6), respectively. A radiating pipe (12) is disposed symmetrically from the center on the upper side of the rear inclined portion, and both are connected to the radiating chamber (6). After the snow melting chamber, a drain pipe (13) is provided at the lower end, and at that position. A filter (14) is arranged in the corresponding snow melting room (3B), the element (14B) is put in the frame (14A) in contact with the back plate (2D), and the upper surface is closed by the cover (14C). A cutout (14F) for discharging snowmelt water is provided at the upper end of the front surface of 14A), and a pair of left and right drain pipes (31) is provided.
Reaches the rear end along the left and right face plates (2B, 2C) in the machine room (3), communicates with both ends of the frame (14A) of the filtering device, and allows snowmelt water to flow to the lower front part of the frame (14A). A screw hole (14E) for discharging is provided, which is configured to be closed by a plug (14D) at the time of work, the burner (4) is housed in a burner box (3A), and the upper surface is covered with a burner upper surface cover (4B). Only the upper side is opened, and the temperature sensor (33) is arranged in the snow melting room (3B), while the thermostat (3) is installed in the machine room (3).
5) A buried snow melting apparatus characterized by the provision of 5).