JP2818740B2 - 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 systemized snow melting apparatus useful for offices and households in snowy areas.

[0002]

2. Description of the Related Art A snow melting device is a large-scale device constructed for snow on a road such as a public road, and a snow melting device for a road surface at a front entrance, a passage from a front end to a road, and a garage. There are small devices that have been implemented. In the former and the latter, a pipe is buried under a road surface, and high-temperature water from a hot water boiler is circulated through the pipe to heat the road surface itself and melt the snow by the heat. On the other hand, there is a snowmelt tank for snowfall on the road surface at the entrance, the passage from the entrance to the road, the garage, and the like. This tank is buried leaving the snow inlet, so that high-temperature water can be supplied from the hot water boiler to the water spray nozzle in the tank, and the snow injected into the tank from the snow inlet is sprayed from the water spray nozzle. After melting snow with high-temperature water that is sprinkled, it is drained as gray water. Thus, in the conventional snow melting type, a 1: 1 combination of a snow melting element using a pipe or a snow melting tank and a hot water boiler is provided.

[0003] In offices and ordinary households where the ability of the snow melting apparatus is relatively small, it is almost possible to cope with the problem by installing a snow melting tank, for example. Yes, there is concern about fractures and the like due to slip. In addition, if a snow melting device with a pipe buried under the road surface in front of the entrance, the passage from the entrance to the road, in front of the garage, etc., it is possible to prevent accidents such as fractures due to freezing and slipping, There is dissatisfaction that snow cannot be melted until the snow piled up on the roof. Also,
When a snow melting tank and a snow melting device are installed and constructed in order to solve both dissatisfactions described above, the hot water boiler becomes two units, the energy consumption as a heat source is doubled and the maintenance burden is economically burdensome. It is serious. Further, the lid of the snowmelt tank may freeze and adhere to the opening of the tank body and cannot be opened. In such a case, it takes a lot of time to open the lid, and the lid must be able to open and close reliably at any time.

[0004]

The problem to be solved is to efficiently utilize the heat energy of one hot water boiler to its exhaust heat without waste and efficiently melt the snow-melting element to be melted. It is to obtain a possible snow melting device.

[0005]

In order to achieve the above object, a snowmelt tank using hot water as a heat source is provided as a hot water supply source in an exhaust passage of an exhaust case connected to an exhaust port of a hot water boiler. The exhaust hot water circulation from the heat exchanger is connected to the second snow melting element in the snow melting tank, and the tank hot water circulation from the hot water boiler is connected to the first snow melting element in the second snow melting element. It is characterized by doing. In addition, the present invention provides a hot-water boiler and a hot-water boiler as a hot-water supply source in a hot-water boiler and an exhaust path of an exhaust case connected to an exhaust port of the hot-water boiler for a snow melting element on a road surface, a hot-water melting element, and a snow melting tank using hot water as a heat source. The heat exchanger is connected appropriately. Further, the present invention provides a road surface snow melting element, a roof snow melting element, and a snow melting tank that use hot water as a heat source, a hot water supply source includes a road surface hot water circulation path from a hot water boiler, the road surface snow melting element, and a roof from the same hot water boiler. A hot water circulation path is connected to the roof snow melting element, and a hot water hot water circulation path from a heat exchanger in an exhaust passage of an exhaust case connected to an exhaust port of the hot water boiler is provided in the snow melting tank. A tank hot water circulation path from the hot water boiler is connected to the second snow melting element and the first hot melt circulation path in the second snow melting element.
It is characterized by being connected to a snow melting element. A road snow melting element and a roof snow melting element and a snow melting tank in the present invention,
The hot water boiler and the heat exchanger in the exhaust case connected to the exhaust port of the hot water boiler employ a circulation system using a hot water circulation circuit. Further, this connection relationship may be such that either the hot water boiler or the heat exchanger in the exhaust case is connected to each snow melting element, or both the hot water boiler and the heat exchanger are connected. For the snowmelt tank, in addition to the hot water circulation method using the hot water boiler, the cold water melted in the tank is sucked up and heated in a heat exchanger in the exhaust passage of the exhaust case, and the hot water is returned or sprinkled into the tank. A circuit system for refluxing through a nozzle may be used. The hot water is water or an antifreeze, and when it is an antifreeze, there is no need for a configuration for draining the water or trouble. Further, when the heat exchanger in the exhaust passage is formed in a multi-stage shape, the heat efficiency is increased, and the exhaust heat can be sufficiently and effectively used.

[0006]

1 to 6 show a first embodiment of a snow melting apparatus according to the present invention. The snow melting apparatus 1 is for general household use, and a hot water boiler 2 has a hot water boiler 2 for circulating hot water on a road surface. Road 3
Through the road surface snow melting element 4, the roof hot water circulation path 5, the roof snow melting element 6, and the tank hot water circulation path 7 through the first snow melting tank 8.
A heat exchanger 13 is disposed in an exhaust passage 12b in an exhaust case 12 connected to the snow melting elements 9 and connected to an exhaust port 2a of the hot water boiler 2. And the second snow melting element 10 in the snow melting tank 8 are connected via the exhaust heat / hot water circulation path 11.

The hot water boiler 2 is capable of supplying hot water as a circulating liquid by a circulation pump 2b. The hot water is diverted to each of the hot water circulation paths 3, 5, and 7, and the road surface snow melting element 4, the roof snow melting element 6, and the snow melting. Cold water, which has been supplied to the first snow melting elements 9 in the tank 8 and has been subjected to heat exchange and whose temperature has been lowered, is recovered, heated repeatedly, and can repeatedly circulate hot water. The exhaust case 12 is made of a heat insulating member. An exhaust inlet 12a is connected to the exhaust port 2a of the hot water boiler 2, and a heat exchanger 13 is provided in a meandering exhaust passage 12b extending from the exhaust inlet 12a to the exhaust outlet 12c. The heat exchanger 13 is connected to the second snow melting element via the circulation pump 25 and the exhaust hot water circulation circuit 11.
Connected to 10.

The snow melting element 4 is composed of a small snow melting panel 4A laid in front of the entrance 30 and a stair 31 leading to the front of the entrance, and a large snow melting buried in the road surface 32 from the bottom of the stair 31 to the gate and the parking space 33. It consists of a panel section 4B. The small snowmelt panel 4A is provided with a circulation pipe 4a1 along the groove on the panel surface,
A rubber mat 4a2 is covered on the panel surface, and a road surface hot water circulation path 3 is connected to the circulation pipe 4a1. The large snowmelt panel section 4B is provided with a circulation pipe 4b1 along a groove on the panel surface made of a rubber chip, and is connected to the road surface hot water circulation path 3. The large snowmelt panel 4B is fixed to a roadbed 34 on which gravel is scattered with a stopper 4b2, and a plate-like or net-like heat-dissipating plate 4b3 made of a material having high thermal conductivity is laid on the panel surface. In addition to protecting the panel surface and the circulation pipe 4b1, a thick mat member 4b4 made of concrete, block, asphalt, or rubber chip is laid on the heat radiating plate 4b3. In addition, in the large snowmelt panel section 4B, a water collecting pipe 14 extending from the surface to the sewer through the roadbed 34 is disposed, and the snowmelt water on the panel surface and the snowmelt water permeating the roadbed 34 are collected in the water collecting pipe 14. After being collected, the water can be drained from the catchment tank 16 to the sewer pipe via the drain pipe 15.
The water collecting pipe 14 is formed with a flange 14a at the water collecting port at the upper end so as to function as a stopper.

The roof snowmelting element 6 is formed by arranging a circulation pipe 6a on the whole or a part of the roof surface, for example, at the illustrated eaves 35, and the roof hot water circulation path 5 is connected to the circulation pipe 6a. . In the eaves 35, the roof surface portion 36 is formed to have a dovetail cross section and a concave groove-shaped gutter portion 37 is formed at the bottom, and a circulation pipe 6a is arranged on the roof surface portion 36 and the gutter portion 37. The gutter 37 is connected to the drain pipe 15. The circulation pipe 6a in the roof surface part 36 and the concave gutter part 37 is a panel.
It is integrated with 6b to facilitate construction. In addition, gutter part
A roof hot water circulation path 5 is provided in a drain pipe 15 connected to 37.

The snowmelt tank 8 is buried in the garden so that the snow inlet 8a is exposed on the ground. A first snow melting element 9 and a second snow melting element 10 are disposed in this tank, and the second snow melting element 10 is a rectangular thin tank made of a member having high heat conduction efficiency, The hot water circulating through the exhaust heat hot water circulation path 11 is convected in the tank. And
In the second snow melting element 10, a circulation pipe 9a of the first snow melting element 9 is disposed at a lower position, and a heating element 17 is disposed at an upper position.
The circulation pipe 9a of the first snow melting element 9 is connected to the hot water circulation path 7. The heating element 17 is connected to a suction pump 18 at the bottom of the tank and to a plurality of watering nozzles 19 at the top of the tank, and cool water sucked from the tank by the suction pump 18 is heated by a heating pipe. In the process of flowing 17a, the water is heated and heated, and the warm water is sprayed from the spray nozzle 19 to melt the snow in the tank. In addition, the cold water in the tank where the snow melts is supplied by a three-way valve located on the way from the suction pump 18 to the heating element 17.
The water can be drained to the catchment tank 16 through 20. The three-way valve 20 is short-circuited with the water level sensor 21 installed in the tank, and when the water level rises to a certain level, the cold water is automatically drained from the tank. Snow melting is continued. Separately, the suction pump 22
(Shown by imaginary lines in FIG. 5) may be installed to allow the cold water in the tank to be drained as needed.

A guide hole 8b is formed at each of four corners of the snow inlet 8a of the snow melting tank 8 so as to extend vertically, and a grid-like support beam 8c is provided at the opening 8a. The lid 8d which can open and close the snow inlet 8a is formed in a flat plate shape,
On the flat back surface, rod-shaped rods 8e are vertically provided so as to be able to be inserted into and removed from the guide holes 8b, respectively.
It is to be received by. Also, a handle is provided on the lid 8d.
8f is provided for easy opening and closing operation.

As a result, the hot water circulates from the hot water boiler 2 to the road surface snow melting element 4 and the roof snow melting element 6 via the hot water circulation paths 3 and 5, and the second snow melting element 10 in the snow melting tank 8.
The heat exchanger in the exhaust case 12 passes through the exhaust heat hot water circulation path 11
Since hot water circulates from 13, the heat energy in one hot water boiler 2 is effectively utilized to the exhaust heat, and the entrance 30 and the stairs 31 leading to the entrance and the road surface 32 from the bottom of the stairs 31 to the gate and The snow melting in the parking space 33, the snow melting in the eaves 35 on the roof, and the snow melting in the snow melting tank 8 for the snow dropped from the roof or the snow to be discarded in the garden can be simultaneously and efficiently performed.

In addition, in the second snow melting element 10 in the snow melting tank 8, in addition to the circulation of the hot water passing through the exhaust heat / hot water circulation path 11, the hot water from the hot water boiler 2 passes through the tank hot water circulation path 7. Therefore, the snow melting ability of the second snow melting element is enhanced, and the snow to be discarded can be efficiently melted.

The surface of the small snow-melting panel 4A for melting the snow in front of the entrance 30 and the stairs 31 is covered with a rubber mat 4a2, so that it is safe without slipping. And the road surface 32 from the bottom of the stairs 31 to the gate
In addition, on the surface of the large snow melting panel 4B buried in the parking space 33, a plate-shaped or net-shaped radiating plate 4b3 made of a member having high thermal conductivity is provided to protect the panel surface and the circulation pipe 4b1 and Since the thick mat 4b4 is laid on the heat radiating plate 4b3, the road surface 32 and the parking space 33 have snow melting ability and are stable. In addition, since the water collecting pipe 14 extending from the same surface to the drain pipe 15 through the roadbed 34 is disposed in the large snowmelt panel section 4B, the snowmelt water on the panel surface and the snowmelt water permeating the roadbed 34 are collected by the water collecting pipe. After being collected in 14, the water can be drained from a water collecting tank 16 to a sewer pipe via a drain pipe 15. Moreover, since the water collecting pipe 14 has a flange formed at the water collecting port at the upper end, it can also function as a stopper for the large snow melting panel portion 4B.

The eaves 35 have a roof surface portion 36 formed in a dovetail shape in cross section and a concave groove-shaped gutter portion 37 formed at the bottom, and a circulation pipe for the roof snow melting element 6 is formed on the roof surface portion 36 and the gutter portion 37. 6a
, The snow that accumulates on the roof can be efficiently melted at the roof surface portion 36 and the gutter portion 37 of the eaves 35 and drained to the drain pipe 15, and the snowfall from the eaves 35 can be reduced or eliminated. . In addition, the drainage pipe 15 connected to the gutter section 37 is provided with a roof hot water circulation path 5 so as to heat the pipe, so that the pipe is prevented from freezing and drainage is performed reliably. it can.

The first in the second snow melting element 10 of the snow melting tank 8
A heating element 17 is arranged above the snow melting element 9, and after the cold water in the tank is heated by the heating pipe 17 a, the hot water is sprinkled into the tank from a plurality of watering nozzles 19 to melt the snow. Therefore, the snow melting efficiency of the snow put into the tank is high. In addition, the cold water in the tank can be drained from the suction pump 18 to the water collecting reservoir 16 via the three-way valve 20, and the drainage and the sprinkling can be performed by one suction pump 18 by switching the three-way valve 20. .

Since the lid 8d exposed on the ground is flat and the back is flat, snow or water as a freezing element is interposed between the flat back of the lid 8d and the snow inlet 8a. This makes it difficult to open and close due to freezing. Moreover, since the lid 8d is opened and closed by inserting and removing a plurality of rod-shaped rods 8e vertically extending from the back surface into and out of the guide hole 8b on the side of the snow inlet, the lid can be opened and closed only in the vertical direction, and unintentionally. As a result, an unexpected accident due to a fall or the like can be prevented. A grid-shaped support beam 8c is provided at the snow inlet 8a of the snowmelt tank 8, so that the closed beam 8d can be received by the support beam 8c. Even when an automobile or the like is loaded on the 8d, it is not deformed or damaged.

FIG. 7 illustrates a second embodiment of the snow melting apparatus according to the present invention. Since the configuration is basically the same as that of the first embodiment, a description of the common configuration will be given. The description will be omitted, and different configurations will be described.

The heat exchanger 13 in the exhaust passage 12b of the exhaust case 12 includes a snow melting tank 8, a hot water supply passage 23a and a cold water recovery passage.
The connection is made through a communication pipe 23 composed of 23b. Then, a suction pump 24 is provided at the end of the cold water recovery passage 23b in the tank so that cold water is sucked and heated, and hot water can be returned to the tank.

This has the same effect as that of the first embodiment. Further, since the cold water in the tank is directly heated by the exhaust heat and circulated as hot water, the temperature of the water in the tank is reduced. Can increase snow melting.

FIG. 8 illustrates a third embodiment of the snow melting apparatus according to the present invention. Since the configuration is basically the same as that of the first embodiment, a description of the common configuration will be given. The description will be omitted, and different configurations will be described. The heat exchanger 13 in the exhaust passage 12b of the exhaust case 12 is connected to the snow melting element 4, and the hot water boiler 2 is connected to the roof snow melting element 6, the first snow melting element 9, and the second snow melting element 10.

FIG. 9 illustrates a fourth embodiment of a snow melting apparatus according to the present invention. Since the configuration is basically the same as that of the first embodiment, a description of the common configuration will be given. The description will be omitted, and different configurations will be described. The heat exchanger 13 in the exhaust passage 12b of the exhaust case 12 is connected to the roof snow melting element 6, and the hot water boiler 2 is connected to the road snow melting element 4, the first snow melting element 9, and the second snow melting element 10.

FIG. 10 illustrates a fifth embodiment of a snow melting apparatus according to the present invention. Since the configuration is basically the same as that of the first embodiment, a description of the common configuration will be given. The description will be omitted, and different configurations will be described. The heat exchanger 13 in the exhaust passage 12b of the exhaust case 12 is connected to the first snow melting element 9, and the hot water boiler 2 is connected to the second snow melting element 10.

[0024]

【The invention's effect】

A. According to claim 1, hot water circulates from the heat exchanger in the exhaust case to the second snow melting element in the snow melting tank via the exhaust heat hot water circulation path, and the first snow melting element in the second snow melting element has a tank. Since the hot water from the hot water boiler circulates through the hot water circulation path, the snow melting capacity of the second snow melting element is increased, the snow to be discarded can be efficiently melted, and the heat energy in one hot water boiler can be effectively reduced to its exhaust heat. By making use of it, snow melting by the snow melting tank can be performed efficiently. B. According to the second aspect, the road surface snow melting element, the roof snow melting element, and the snow melting tank are appropriately connected to the hot water boiler and the heat exchanger in the exhaust passage of the exhaust case connected to the exhaust port of the hot water boiler. Efficient utilization of heat energy from one hot water boiler up to its exhaust heat allows simultaneous simultaneous melting of snow on the road surface, snow on the roof, and snow from the roof or the snow melting tank in the yard where snow should be discarded. Can be done C. According to claim 3, a road surface hot water circulation path from the hot water boiler is connected to the road surface snow melting element, and a roof hot water circulation path from the same hot water boiler is connected to the roof snow melting element. The second snow-melting element has a hot-water hot water circulation path from a heat exchanger in an exhaust passage of an exhaust case connected to an exhaust port of the same-water boiler, and the first hot-melt element in the second snow-melting element has the same hot water. Since the tank hot water circulation path from the boiler is connected to each other, the heat energy in one hot water boiler is effectively utilized to the exhaust heat, and the snow melting on the road surface, the snow melting on the roof, and the snow falling from the roof And snow melting by the snow melting tank in the garden to be discarded can be simultaneously and efficiently performed. Since the first snow melting element and the second snow melting element have high snow melting ability in the snow melting tank, snow to be discarded can be efficiently melted.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a first embodiment of a snow melting apparatus according to the present invention, which is partially cut away.

FIG. 2 is a partially enlarged longitudinal sectional view of a road surface snow melting element.

FIG. 3 is a partially enlarged longitudinal sectional view of a heat exchanger in an exhaust passage of an exhaust case.

FIG. 4 is a partially enlarged longitudinal sectional view of an eaves tip.

FIG. 5 is an enlarged vertical sectional view of a snow melting tank.

FIG. 6 is a plan view of a part around the lid partly cut away.

FIG. 7 is an enlarged perspective view of a main part illustrating a second embodiment of the snow melting apparatus of the present invention, which is partially cut away.

FIG. 8 is a schematic view of a main part illustrating a third embodiment of the snow melting apparatus of the present invention.

FIG. 9 is a schematic diagram of a main part illustrating a fourth embodiment of the snow melting apparatus of the present invention.

FIG. 10 is an enlarged vertical sectional view of a main part illustrating a fifth embodiment of the snow melting apparatus of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Snow melting device 2 Hot water boiler 2a Exhaust outlet of hot water boiler 2b Circulation pump of hot water boiler 3 Road surface hot water circulation channel 4 Road surface snow melting element 4A Road surface snow melting element small snow melting panel 4a1 Snow melting small panel portion circulation pipe 4a2 Snow melting small panel portion Mat 4B Large snow-melting panel part of road surface snow-melting element 4b1 Circulating pipe of large snow-melting panel part 4b2 Stopper 4b3 Heat sink 4b4 Mat 5 Roof hot water circulation path 6 Roof snow melting element 6a Roof snow melting element circulation pipe 7 Hot water circulation path 8 Snow melting tank 8a Snow inlet of snowmelt tank 8b Guide hole of snow inlet 8c Support beam of snow inlet 8d Lid 8e Bar rod of lid 8f Handle of lid 9 First snowmelt element in the snowmelt tank 10 Inside the snowmelt tank Second snow melting element 11 Exhaust heat / hot water circulation path 12 Exhaust case 12a Exhaust case exhaust inlet 12b Exhaust case exhaust passage 12c Exhaust case exhaust outlet 13 Exhaust case heat exchanger 14 Water collecting pipe 15 Drain pipe 16 Water collecting tank 17 Addition Element 17a Heating element heating pipe 18,22,24 Suction pump 19 Sprinkler nozzle 20 Three-way valve 21 Water level sensor 23 Communication pipe 23a Hot water supply path 23b Cold water recovery path 25 Circulation pump 30 In front of entrance 31 Stairs 32 Road surface 33 Parking space 34 Subgrade 35 eaves 36 roof eaves 37 eaves gutter

Claims (3)

(57) [Claims] 1. A hot-water hot water circulation path from a heat exchanger in an exhaust passage of an exhaust case connected to an exhaust port of a hot-water boiler as a hot-water supply source for a snow-melting tank using hot water as a heat source. The snow melting apparatus is connected to a second snow melting element in the snow melting tank, and a tank hot water circulation path from the hot water boiler is connected to a first snow melting element in the second snow melting element. 2. A hot-water boiler and a hot-water boiler as a hot-water supply source in an exhaust passage of an exhaust case connected to an exhaust port of the hot-water boiler for a road-surface snow-melting element, a roof snow-melting element, and a snow-melting tank using hot water as a heat source. A snow melting device, wherein a heat exchanger is appropriately connected. 3. A road surface hot water circulation path from a hot water boiler is provided as a hot water supply source to the road surface snow melting element, a roof snow melting element, and a snow melting tank using the hot water boiler as a hot water supply source. A hot water circulation path is connected to the roof snow melting element, and a hot water hot water circulation path from a heat exchanger in an exhaust passage of an exhaust case connected to an exhaust port of the hot water boiler is provided in the snow melting tank. A snow melting apparatus connected to a second snow melting element, wherein a tank hot water circulation path from the hot water boiler is connected to a first snow melting element in the second snow melting element.