JPH09228335A - Underground buried type snow melting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new structure of a device, by which snow melting efficiency can be improved. SOLUTION: An underground buried-type snow melting device 11 has a furnace body 13 in a case main body 12, and a burning flame is blown out from a burner 14 to the furnace body 13. A smoke guiding duct 16 for guiding an exhaust of the burner to the outside of the furnace body 13, is installed on an inner wall of the furnace body 13, and the smoke guiding duct 16 is installed at an upper part of the furnace body 13 along the longitudinal direction of the furnace body 13, and is composed of a heatproof panel having an inverted V shape in section, and located on a top face of the furnace body 13. An exhaust collecting means 15 having an inclined face 15a expanding downward, is installed outside of the inner wall of the furnace body 13, plural smoke guiding ducts 16 for guiding the exhaust of the burner to the outside of the furnace body 13, are installed through the exhaust collecting means 15, and at least one of the smoke guiding ducts is installed at a side lower position of the furnace body 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underground buried snow melting device using a burner, and more particularly to a smoke exhaust duct structure for efficiently utilizing burner combustion heat.

[0002]

[Prior Art] Reduction of snow removal space due to dense houses,
Due to the complexity of snow dumping work due to dump transportation and problems such as cost, various types of snow melting devices have recently been provided for performing snow melting using a burner or a boiler.

For example, the snow melting apparatus of Japanese Utility Model Publication No. 5-42102 is equipped with a snow melting tank 2 in which a furnace body 1 is installed and a machine room 4 containing a burner 3 as shown in FIG. On the other hand, the combustion flame is ejected from the burner 3 and the snow introduced into the snow melting tank 2 is brought into contact with the furnace body 1 to perform the snow melting. In addition, this device is a buried type device in which the entire device is buried underground leaving the upper surface part, and such underground buried type device is more effective in a limited site than a stationary type device installed on the ground. In addition to being utilized, it has an advantage that the snow loading labor can be reduced because the upper edge of the snow melting tank and the ground are at the same height.

[0004]

By the way, the conventional buried snow melting apparatus still leaves room for improvement in terms of efficient utilization of burner combustion heat.

That is, the buried type device has an advantageous structure in terms of labor for carrying in snow as described above. For example, a large scoop or a hand-pushed snow-carrying sled (so-called snow dump) puts the snow on the ground (as it is). Since the snow surface) can be slid and brought to the edge of the snow melting tank, a relatively large amount of snow can be put in a short time by human power.

However, in the existing buried type apparatus, the snow carried in one after another is piled up as a pile on the furnace body,
There was a difficulty in closing the upper part of the snow melting tank. This is because the injected snow does not fall smoothly into the snow melting tank and the snow melting on the upper surface of the furnace body cannot keep up with the injection speed. For this reason, there is a problem that snow cannot be put into the tank until the snow mountain on the upper part of the furnace body (snow melting tank) is melted, and the entire furnace body (especially the side surface portion and the lower surface portion of the furnace body) is not used efficiently.

On the other hand, such a problem cannot be solved by simply increasing the size of the snow melting tank and using a large-capacity burner (furnace body). This is because the manufacturing cost increases as the size of the device increases, and a large burying space is required, which is difficult as a device for general private houses or collective housing.

Further, in the device of Japanese Utility Model Publication No. 5-42102, two exhaust pipes 5 and 6 are provided side by side on the upper part of the furnace body in the longitudinal direction of the snow melting tank, and burner exhaust is provided to these exhaust pipes 5 and 6. Is introduced to improve the snow melting efficiency in the upper part of the snow melting tank. However, providing such pipes in the upper part of the snow melting tank, which is the inlet for snow, hinders the carry-in of snow into the snow melting tank, and especially in the buried type device capable of charging a large amount of snow in a short time. On the contrary, the snow melting efficiency of the entire device may be reduced.

Therefore, an object of the present invention is to obtain a new device structure capable of further improving the snow melting efficiency of an underground buried snow melting device.

[0010]

In order to achieve the above objects and solve the problems, an underground buried snow melting apparatus according to the present invention is
With a furnace body arranged in the case body, and on the technical premise of an underground buried type snow melting device that ejects combustion flame from the burner to the furnace body, one smoke guiding duct for leading the burner exhaust to the outside of the furnace body is provided. The smoke guiding duct is provided on the inner wall of the furnace body, and the smoke guiding duct is arranged at an upper position of the furnace body along the longitudinal direction of the furnace body, while the smoke guiding duct is arranged on the upper surface of the furnace body. Composed of heat resistant panels.

Exhaust collecting means having an inclined surface that expands downward is provided outside the inner wall of the furnace body, and a plurality of burner exhausts are led out of the furnace body through the exhaust collecting means. In some cases, smoke ducts are arranged, and at least one of the smoke ducts is arranged at a position laterally below the furnace body.

[0012]

The snow melting apparatus according to the present invention is based on the technical premise of an underground buried snow melting apparatus in which a furnace body is arranged in a case body (snow melting tank) and a combustion flame is ejected from the burner to the furnace body. A smoke duct leading out the burner exhaust to the outside of the furnace body was arranged at the upper position of the furnace body along the longitudinal direction. Therefore, the ice and snow put into the case body is divided into left and right by the smoke guiding duct in the upper part of the furnace body, and quickly falls from the side part of the furnace body to the bottom of the snow melting tank.

In particular, this smoke guiding duct is composed of a heat-resistant panel having an inverted V-shaped section provided on the upper surface of the furnace body, and since the panel is heated by the high-temperature burner exhaust passing through the inside, it was thrown in. The ice and snow is melted on the panel and immediately slides down on the surface of the panel and is smoothly guided into the snow melting tank. Therefore, even if a large amount of snow is thrown in in a short time, snow mountains will not form on the furnace body and the upper part of the snow melting tank will not be blocked,
It is possible to carry snow efficiently into the snow melting tank. The snow carried into the snow melting tank comes into contact with the furnace body or is immersed in the snow melting water accumulated in the tank to be quickly melted.

Further, in this snow melting apparatus, there may be a case where an exhaust collecting means is provided outside the inner wall of the furnace body and a plurality of smoke guiding ducts for leading the burner exhaust to the outside of the furnace body through the exhaust collecting means. is there. Such an exhaust collecting means has a structure having an inclined surface that expands downward. In addition to smoothing the loading of snow into the snowmelt tank, increasing the contact area (heat exchangeable area) with the ice and snow carried into the tank,
This is to improve snow melting efficiency.

Further, if at least one of the smoke guiding ducts is arranged at the lateral lower position of the furnace body, the temperature of the snowmelt water accumulated in the tank is raised and the snow carried into the bottom of the snowmelt tank is quickly melted. It becomes possible to remove. Further, this also raises the temperature of drainage from the snow melting tank, so that it is possible to comply with the regulations (sewage temperature) established by local governments, for example.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5 show an example of an underground buried snow melting apparatus according to the present invention. This device 11 as shown
Arranges the furnace body 13 in the case body 12 (in the snow melting tank),
A combustion flame is ejected from the burner 14 to the furnace body 13 to melt the snow, and an exhaust gas collection chamber 15 that communicates with the furnace body and can introduce combustion exhaust gas of the burner is provided outside the inner wall of the furnace body. It is provided. The exhaust collecting chamber 15 is made of a heat-resistant metal panel that can exchange heat with ice and snow put into the case and can withstand exhaust heat of the burner. Furthermore, in order to increase the contact area with the carried-in snow while enabling smooth carrying-in of snow into the case,
An inclined surface 15a that expands downward is formed in the exhaust collecting chamber.

On the other hand, on the upper surface of the furnace body 13, a smoke guiding duct 16 also formed of a heat resistant metal panel is arranged along the longitudinal direction of the furnace body. This smoke duct 16
Is configured to communicate with the exhaust collecting chamber 15 to introduce the burner exhaust into the exhaust collecting chamber 15 and to have an inverted V-shaped cross section. This is because the ice and snow put into the upper part of the furnace body is divided into both sides of the furnace body and smoothly guided into the case.

From the exhaust collecting chamber 15, the inclined surface 1 is further provided.
Exhaust injection pipes 17 to 19 for injecting combustion exhaust gas downward along 5a and exhaust injection pipes 21 to 26 for ejecting combustion exhaust gas to the upper surface of the case along the upper surface of the furnace body are provided, respectively. To burn snow from the burner to melt snow.
In addition, in this device, smoke ducts 3 are installed at positions below both sides of the furnace body.
1, 32 are arranged. This duct is mainly for melting the ice and snow introduced into the bottom of the case and raising the temperature of the snowmelt water accumulated in the bottom of the case to raise the temperature of the drainage water from this device. The snowmelt water is discharged by an overflow discharge pipe (not shown) provided at an appropriate height position on the wall surface of the case. In addition, FIG. 5 shows a route for discharging the burner exhaust in this device.

According to this apparatus, the ice and snow put into the case collides with the smoke guiding duct 16 having an inverted V-shaped cross section, which is heated by the combustion exhaust passing through the case, and is divided into both sides of the furnace body.
While being melted on the surfaces of the duct 16 and the furnace body 13, it is smoothly guided to the furnace body side part and the case bottom part. Further, the ice and snow put into the tip of the furnace body is melted by heat exchange with the exhaust collecting chamber 15 and injection heat from the exhaust injection pipes 17 to 19,
It slides down the inclined surface 15a and is guided into the case. The ice and snow introduced into the case is the furnace body 13 and the smoke guiding ducts 31, 3
2. It is quickly melted by contact with the exhaust collecting chamber 15 or by exhaust heat from the exhaust injection pipes 17-19, 21-26.

The present invention is not limited to the embodiment, and, for example, the number and shape of the exhaust injection pipes (17 to 19, 21 to 26), the disposition position, the injection direction, and the lower side of the furnace body. The design of the number of smoke ducts (31, 32) arranged at the position can be changed appropriately. In addition, in the above-described embodiment, it is described that the snowmelt water is discharged to the outside, but the snowmelt water may be circulated by a pump to discharge hot water (or shower water) from the upper part of the case.

[0021]

As described above, according to the present invention, it is possible to efficiently use the exhaust heat of the burner in the underground buried type snow melting apparatus to improve the snow melting efficiency.

[Brief description of drawings]

FIG. 1 is a side view showing an example of an underground buried snow melting device according to the present invention.

FIG. 2 is a plan view showing an example of an underground buried snow melting device according to the present invention.

FIG. 3 is a cross-sectional view taken along the line AA showing an example of the snow melting device (furnace body) according to the present invention.

FIG. 4 is a front view showing an example of a snow melting device (furnace body portion) according to the present invention.

FIG. 5 is a side view showing a combustion exhaust path of the underground buried snow melting device according to the present invention.

FIG. 6 is a perspective sectional view (a) and a sectional view taken along the line BB (b) showing an example of a conventional underground snow melting device.

[Explanation of symbols]

 11 Underground buried snow melting device 12 Case body 13 Furnace body 14 Burner 15 Exhaust collection chamber 15a Inclined surface 16 Furnace upper smoke guide duct 17-19, 21-26 Exhaust injection pipe 31, 32 Furnace side lower smoke guide duct

Claims (2)

[Claims] 1. In a underground snow-melting apparatus in which a furnace body is arranged in a case body and a combustion flame is ejected from the burner to the furnace body, one smoke guiding duct for leading the burner exhaust to the outside of the furnace body. Is provided on the inner wall of the furnace body, and the smoke guiding duct is arranged at an upper position of the furnace body along the longitudinal direction of the furnace body, while the smoke guiding duct is arranged on the upper surface of the furnace body. Underground buried type snow melting device characterized by being configured with a heat-resistant panel. 2. The furnace body is provided with an exhaust collecting means having an inclined surface that expands downwardly outside the inner wall of the furnace body, and the burner exhaust is led out of the furnace body through the exhaust collecting means. The underground buried snow melting apparatus according to claim 1, wherein a plurality of smoke guiding ducts are arranged, and at least one of the smoke guiding ducts is arranged at a position laterally below the furnace body.