JP2000336624A - Direct heating and hot water injection type snow melting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently melt the snow in a short time at a low fuel consumption by directly melting the snow with a can body heated by a burner and injecting the heated hot water. SOLUTION: The inside of a tank main body 1 is partitioned into a snow melting tank 8 to be opened and closed by a cover body and a machine chamber 9. A water dispersing piping 16, to which plural sprinkler nozzles 17 are fitted, is provided in an upper part of the inner surface of the snow melting tank 8. A hot water generating device 18 provided in the snow melting tank 8 and for supplying the hot water to the piping 16 for sprinkler is formed of a snow melting can body 19 having an air discharge cylinder 21 and a cylindrical heating tubular body 22 provided inside of the snow melting can body 19 and formed by spirally winding a heating tube 23. The machine chamber 9 is provided with a supply pump 26 for supplying the snow melting water to the cylindrical heating tubular body 22 and an oil burner 27 for erupting the combustion gas is installed into the snow melting can body 19. A fuel gas reflector 25 is provided in the cylindrical heating tubular body 22 at a part opposite to the burner 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow melting apparatus used in a snowfall area, and more particularly to a direct-heating / hot-water-injecting snow melting apparatus in which snow is melted directly by a burner as a heat source and efficiently by hot water.

[0002]

2. Description of the Related Art As a conventional snow melting apparatus for injecting hot water using a burner as a heat source, for example, Japanese Patent No. 2614708
Patent Publication, Japanese Patent No. 2667113, Japanese Patent No. 2667
The technology described in Japanese Patent Publication No. 117 is known. These prior arts have a configuration in which a can is heated by a burner and a hot water pipe disposed outside the can is indirectly heated. In addition, the direct heat type snow melting apparatus is configured to directly melt snow by putting snow on a can body heated by a burner.

[0003]

Among the above-mentioned prior arts, in the hot water injection type snow melting apparatus, the temperature of the hot water is raised to a temperature required for snow melting by a temperature sensor. Has the disadvantage of being bad. Further, the direct-heating type snow melting apparatus has a disadvantage that heat loss is high because the combustion gas is discharged into the atmosphere after heating the can body.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and directly melts snow with a can for snow melting heated by a burner and sprays heated warm water to melt snow in a short time. It is an object of the present invention to provide a direct-heating and hot-water-injection type snow melting apparatus capable of melting snow with good fuel economy.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-described problems, the present invention provides a tank body having a snow melting tank having a snow inlet which can be opened and closed by a lid, and the snow melting tank. A sprinkling pipe disposed on the upper part of the inner surface of the sprinkler, a plurality of sprinkling nozzles provided in the sprinkling pipe, and a hot water generating device provided in the snow melting tank for generating hot water spouted from the plurality of sprinkling nozzles A supply pump provided in the tank main body, for supplying snowmelt water to the hot water generator; and a combustion gas provided in the tank body to heat the snowmelt water to hot water, and a combustion gas in the hot water generator. The hot water generating apparatus has an exhaust pipe opened to the outside of the tank main body, a snow melting can body into which snow is thrown in from above, and one end connected to the supply pump, and the other end connected to the supply pump. A heating pipe whose side is connected to the watering pipe The inner and arranged in a spiral or serpentine shape can body for snow melting consists those composed of a cylindrical heating tube to the gas flow path.

It is preferable that a combustion gas reflecting plate is provided on the other side in the axial direction of the tubular heating tube facing the gas ejection tube of the burner.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the figure, reference numeral 1 denotes a buried type snow melting apparatus which is buried and installed from the ground in the ground, and is a tank main body formed of a steel plate.
And a front plate 3, a rear plate 4, one side plate 5, and another side plate 6 erected from a front edge, a rear edge, and a side edge of the bottom plate 2, respectively. The inside of the tank body 1 is defined by a partition wall 7 standing up to 6 as a snow melting tank 8 having an upper opening serving as a snow inlet 8A and a machine room 9.
Reference numeral 10 denotes a partition plate provided upright in the machine room 9. The partition plate 10 defines a pump chamber 9 </ b> A in the machine room 9, and the pump room 9 </ b> A is formed in the partition plate 10. The communication hole 10A communicates with the snow melting tank 8.

Reference numeral 11 denotes a lid for opening and closing the snow inlet 8A of the snowmelt tank 8. The lid 11 comprises a pair of lid plates 11A, 11A pivotally supported at one end to the tank body 1. The lid is held open by a support rod 12 whose both ends are locked to the lid plates 11A, 11A. The upper opening of the machine room 9 is also configured to be opened and closed by two sets of lids 13 and 14. In addition, 15 is a safety grid frame provided so as to be able to be fitted to and removed from the tank body 1 so as to cover the snow inlet 8A.

Reference numeral 16 denotes a water sprinkling pipe formed of a steel pipe disposed inside and above the snow melting tank 8. The water sprinkling pipe 16 is installed in a substantially square shape along the inner surface of the snow melting tank 8. 17, 1
Numerals 7,... Are watering nozzles attached to the watering pipe 16, and the watering nozzles 17 are arranged at predetermined intervals in an obliquely downward direction inside. Reference numeral 18 denotes a hot water generator installed in the snow melting tank 8. Reference numeral 19 denotes a can for snow melting that constitutes the hot water generating device 18. The can 19 for snow melting has a circular body 19A,
It is composed of a front end plate 19B and a rear end plate 19C provided at both ends of the cylindrical body portion 19A, and is separated from the bottom plate 2 of the tank main body 1 by the cradle 20 and also separated from the side plates 5 and 6. By installing in this state, the periphery of the snow melting can 19 is a space for snow melting. Reference numeral 21 denotes an exhaust pipe for discharging combustion gas into the atmosphere.
Is an air collecting can 21A provided in the snow melting can body 19 in communication with an exhaust port 19C formed in the cylinder 19A;
A, and comprises an exhaust pipe main body 21B penetrating the partition wall 7 and projecting upward from the machine room 9.

Reference numeral 22 designates a hot water generating device 18 and a cylindrical heating tube provided in the snow melting can 19.
Numeral 2 is formed by winding a heating pipe 23 made of a steel pipe into a spiral having a diameter slightly smaller than the inner diameter of the snow melting can body 19, and an inner space thereof is a gas flow path 22A. The cylindrical heating pipe 22 has a starting end 23A of the heating pipe 23 connected to a discharge pipe 26A of a supply pump 26 described later, and an end 23B side connected to the watering pipe 16 via a connection pipe 24. . Reference numeral 25 denotes a combustion gas reflecting plate. The combustion gas reflecting plate 25 is located at a rear end side in the tubular heating tube 22 so as to face the gas flow path 22A, and a rear end plate of the snow melting can 19 is provided. The reflection surface is provided on 19C in an obliquely downwardly inclined state.

Reference numeral 26 denotes an electric supply pump installed in the pump chamber 9A. The supply pump 26 pressurizes the snowmelt water flowing into the pump chamber 9A from the snowmelt tank 8 through the communication hole 10A to the hot water / hot water generator 18 to supply the hot water to each of the water spray nozzles 1.
7 to squirt. Reference numeral 27 denotes a kerosene burner installed in the machine room 9 via a mounting table 28 adjacent to the supply pump 26, and a gas discharge cylinder 27A of the kerosene burner 27 is inserted into the front end plate 19B of the snow melting can 19 from the partition wall 7. The combustion gas is blown out to the gas passage 22A.

Reference numeral 29 denotes a drain port provided in the tank body 1 facing the snow melting tank 8, and the drain port 29 is communicated with an external drain through a drain pipe (not shown). Snowmelt water stays below. Although not shown, the drain port 29 is provided with a dust removal net for preventing dust in the snowmelt from flowing into the drain. Reference numeral 30 denotes a drain outlet.

Reference numeral 31 denotes a control panel mounted on the inner surface of the control panel mounting plate 13, and 32 denotes an operation panel mounted on the inner surface of the operation panel mounting plate 14. The operation panel 32 has an operation start button and a stop button. Buttons and the like are provided.

In this embodiment, the combustion gas is jetted into the snow melting can 19 by the kerosene burner 27 to heat the snow melting can 19 and the cylindrical heating tube 22.
The snow put on the snow melting can 19 from the snow inlet 8A is
It is sequentially and directly melted by the snow melting can 19 heated to a high temperature state. Further, the supply pump 26 is operated to supply hot water to the watering pipe 16, and the water in the snowmelting tank 8 is melted by injecting hot water from the watering nozzle 17 toward the inside of the snowmelting tank 8. In this case, the temperature of the hot water, which is the snowmelt water, has dropped, but it is heated up to about 40 ° C. while flowing through the cylindrical heating tube 22, and the heated hot water is sprayed by the watering nozzle 1.
By spraying from 7, the melting of snow can be accelerated.

In the above-described operation, the combustion gas jetted from the kerosene burner 27 into the snow melting can 19 is guided downward by the combustion gas reflecting plate 25 into the snow melting can 19.
It flows through the gap between the snow melting can 19 and the outside of the cylindrical heating tube 22 and flows forward of the snow melting can 19, during which the snow melting can 19 and the cylindrical heating tube 22 were heated. Thereafter, the gas is released from the exhaust stack 21 into the atmosphere. As described above, the combustion gas heats the cylindrical heating tube body 22 from the inner peripheral side and the outer peripheral side, and also heats the snow melting can body 19, so that the fuel consumption efficiency is extremely high.

FIG. 5 shows a hot water generator 41 according to a modification of the present embodiment. The characteristic of the cylindrical heating pipe 42 constituting the hot water generator 41 is that the heating pipe 43 is connected to the snow melting can 19. By arranging in the circumferential direction while meandering along the axial direction, a cylindrical body having the gas flow path 42A on the inside is formed. With such a configuration, the operation and effect of the present invention can be obtained.

[0017]

The present invention has the following advantages because it is constructed as described above. (1) Both the snow melting can and the cylindrical heating tube are heated by the combustion gas of the burner, while the snow is directly melted by the snow melting can, and the hot water heated via the cylindrical heating tube on the other hand. Is sprayed from the watering nozzle, so that the snow put into the snow melting tank can be melted efficiently in a short time, and the fuel efficiency is excellent. (2) A combustion gas reflecting plate for reversing the flow of the combustion gas is provided in the snow melting can body so that the combustion gas flows from the inside to the outside of the cylindrical heating tube, during which the snow melting can and the cylindrical heating tube are heated. Since the tube is heated, it can be used as a snow melting device having excellent thermal efficiency.

[Brief description of the drawings]

FIG. 1 is a plan view showing a direct-heating / hot-water-injection snow melting apparatus according to an embodiment of the present invention with a lid removed.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken in the direction of arrows III-III in FIG.

FIG. 4 is a sectional view taken in the direction of arrows IV-IV in FIG.

FIG. 5 is a longitudinal sectional view of a direct-heating and hot-water-injection type snow melting apparatus according to a modification of the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tank body 8 snow melting tank 8A snow inlet 11 lid 16 watering pipe 17 watering nozzle 18, 41 hot water generator 19 snowmelt can 21 exhaust pipe 22, 42 cylindrical heating pipe body 22A, 42A gas flow path 23 heating Tube 23 start end 23B end 25 combustion gas reflector 26 supply pump 27 kerosene burner

Claims (2)

[Claims] 1. A tank body in which a snowmelt tank having a snow inlet which can be opened and closed by a lid is defined, a watering pipe disposed on an upper inner surface of the snowmelting tank, and a watering pipe. A plurality of watering nozzles, a hot water generating device provided in the snow melting tank for generating hot water spouted from the plurality of watering nozzles, and a hot water generating device provided in the tank body and supplying the hot water generating device to the hot water generating device And a burner that is provided in the tank body to heat snowmelt water to hot water and that emits combustion gas into the hot water generator, and the hot water generator is provided outside the tank body. A snow melting can body having an open exhaust pipe, into which snow is introduced from above, and a heating pipe having one end connected to the supply pump and the other end connected to the water sprinkling pipe are spirally formed in the snow melting can. Or a cylinder arranged in a meandering shape with the inside as a gas flow path A direct-heating and hot-water-injection type snow melting apparatus characterized by comprising a tubular heating pipe. 2. The direct heating and hot water according to claim 1, wherein a combustion gas reflecting plate is provided on the other side in the axial direction of the tubular heating tube facing the gas ejection tube of the burner. Injection type snow melting equipment.