JP3064936U - Road snow melting equipment - Google Patents

Abstract

(57) [Abstract] [Problem] A means of melting snow accumulated on a road by spraying warm water requires a lot of fuel cost, and a means of melting snow by spreading groundwater causes land subsidence. Absent. SOLUTION: A heat exchanger 10 is provided deep underwater in an existing pond / reservoir B, and one side of a primary circulation pipe 11 through which antifreeze L circulates is connected to the heat exchanger 10;
Heat pump 1 for heat exchange on the other side via refrigerant M
5, one side of the secondary circulation pipe 13 through which the antifreeze N circulates is mounted on the heat pump 15, and the other side is buried in the road R.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the present invention pertains] The present invention relates to a snow melting apparatus that melts snow accumulated on a road by using heat of water in an existing pond or reservoir.

[0002]

2. Description of the Related Art In recent years, instead of using snow plows or shovels, means for utilizing geothermal energy to remove snow accumulated on roads has been proposed. However, using geothermal energy requires enormous equipment.

[0003]

[Problem to be solved by the invention] The problem to be solved is that the means of utilizing geothermal energy requires enormous equipment costs, which is undesirable.

[0004]

A description will be given with reference to FIGS. 1 and 2. Ponds and reservoirs in cold regions are heated to around 5 ° C because the water is heated by geothermal heat even if the surface is covered with ice. In the present invention, a heat exchanger 10 is provided in the water of an existing pond / reservoir B, and one side of a primary circulation pipe 11 through which antifreeze L circulates is connected to the heat exchanger 10 and the other side is connected to the other side. It is mounted on a heat pump 15 for exchanging heat via a refrigerant M, and one side of a secondary circulation pipe 13 through which antifreeze N circulates is mounted on the heat pump 15 and the other side is buried in a road R.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The snow melting apparatus for a road according to the present invention is provided with a heat exchanger 10 in the water of an existing pond / reservoir B, and a primary circulation pipe 11 through which the antifreeze L is circulated. Is connected to a heat pump 15 for exchanging heat via a refrigerant M at the other side. One side of the secondary circulation pipe 13 through which the antifreeze N circulates is attached to the heat pump 15 and the other side is buried in the road R. 21 is pond water and 22 is ice.

[0006] The heat exchanger 10 according to the present embodiment is formed in a so-called loop shape, and sets an area of contact with water as large as possible to achieve effective heat exchange. Further, a primary pump 12 is attached to the primary circulation pipe 11 to smoothly circulate the antifreeze L flowing to the heat exchanger 10 communicating with the primary circulation pipe 11. A secondary pump 14 is attached to the secondary circulation pipe 13, and similarly, the circulation of the antifreeze N flowing therein is smoothly achieved.

The heat pump 15 has a built-in closed circuit including the evaporator 16, the compressor 17, the condenser 18, and the expansion valve 19, and circulates the refrigerant M in the closed circuit.

[0008] The operation of the road snow melting apparatus according to the present embodiment will be described. When the device of the present invention is operated to melt the snow accumulated on the road R, the antifreeze L in the primary circulation pipe 11 is circulated by the operation of the primary pump 12 and is installed deeply in the existing pond / reservoir B. The antifreeze L that has absorbed the heat of water by the heat exchanger 10 reaches the heat pump 15. The temperature of the water in the pond / reservoir B is usually around 5 ° C except for the surface part, which is much higher than the road R on which snow has been accumulated. Therefore, heat exchange in the heat exchanger 10 is effectively achieved.

[0009] In the heat pump 15, the refrigerant M absorbs the heat of the antifreeze liquid L heated by the water in the pond / reservoir B and rises in temperature. The refrigerant M whose temperature has risen is compressed by the compressor 17, becomes a high-temperature liquid, and enters the condenser 18. In the condenser 18, the liquid refrigerant M is deprived of heat by the antifreeze N in the secondary circulation pipe 13, and its temperature drops. The temperature of the liquid refrigerant M whose temperature has dropped is reduced by the expansion valve 19 and rapidly drops, and is sent to the lower part of the evaporator 16 in a liquid state. The liquid refrigerant M receives heat from the primary circulation pipe 11, evaporates and evaporates, and is sent to the compressor 17 as described above.

The antifreeze N in the secondary circulation pipe 13 that has absorbed the heat of the refrigerant M in the heat pump 15 circulates by the operation of the secondary pump 14, reaches the inside of the road R, radiates heat, and removes snow on the road R. Melt. Then, after circulating and absorbing heat again in the heat pump 15, the process of radiating heat inside the road R is repeated to continuously melt snow.

Since the snow melting device for the road uses the water in the pond / reservoir B to melt the snow on the road R, it does not require a fuel cost unlike a device that melts snow by spraying hot water. In addition, since existing ponds and reservoirs are used, equipment costs and installation work can be significantly reduced.

[0012]

[Effects of the Invention] The present invention melts snow on the road R by using the water of the existing pond / reservoir B, and therefore does not require fuel costs and is extremely practical. In addition, since there is no pumping of groundwater, it can be used safely and permanently without causing land subsidence. Furthermore, since existing ponds and storage ponds are used, there is no need to dig new artificial ponds, which can greatly reduce equipment costs and installation work.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a snow melting device for a road according to an embodiment of the present invention.

FIG. 2 is a schematic front view of a heat pump.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Heat exchanger 11 Primary circulation pipe 12 Primary pump 13 Secondary circulation pipe 14 Secondary pump 15 Heat pump 16 Evaporator 17 Compressor 18 Condenser 19 Expansion valve 21 Pond water 22 Ice B Pond / reservoir L Antifreeze M Refrigerant N Antifreeze R road

Claims (1)

[Utility model registration claims] 1. A heat exchanger (10) is provided in the water of an existing pond / reservoir (B), and one side of a primary circulation pipe (11) through which the antifreeze liquid (L) circulates. And the other side is attached to a heat pump (15) that exchanges heat via a refrigerant (M), and the antifreeze (N)
A snow melting apparatus for roads, wherein one side of a secondary circulation pipe (13) through which the air flows is attached to the heat pump (15), and the other side is embedded in the road (R).