JPS60223504A - Snow melting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a snow melting device, and particularly to an economical and safe snow melting device that has a large energy saving effect.

(Background of the Invention) Conventionally, hot water and underground water have been used as a countermeasure for lightning suppression, and electric heaters have been used as a countermeasure for snow melting. On the other hand, the latter method also has disadvantages such as the need for measures against electric leakage and the large amount of electricity required for the heater, so new methods are being developed.

(Object of the Invention) An object of the present invention is to provide a snow melting device that can solve the above conventional drawbacks and melt snow economically and safely.

[Summary of the invention]

In order to achieve the above object, the snow melting device of the present invention includes a first heat exchange means that emits heat for snow melting, and a heat exchanger that exchanges heat to be supplied to the first heat exchange means from a heating element. Second
The heat exchange means is equipped with a heat exchange means, and is characterized in that a low boiling point refrigerant that circulates and transfers heat based on the thermosiphon principle is sealed in the above-mentioned surface heat exchange means connected by pipes in a closed loop.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of the structure of a snow melting device showing one embodiment of the present invention, and FIGS. 2 and 3 are a sectional view and a plan view of the installation of a snow melting heat exchanger, respectively.

In Figure 1, ■ is a snow melting heat exchanger, 2 is a heat exchanger,
3 and 3' are refrigerant pipes, and 4 is a high heat generating device.

The snow melting heat exchanger 1 and the heat exchanger 2 are jointed into a loop shape as shown in Fig. 1 by refrigerant piping 3° 3', and a refrigerant with a low boiling point, such as Freon R22, is sealed. .

As shown in FIG. 2, the snow melting heat exchanger 1 is installed on the road surface at a place where snow melting is desired, and a drainage ditch 7 is provided underground for draining snow melt water. In addition, a heat exchanger for snow melting
As shown in Figure 3, 5. is a heat dissipation fin with good heat conduction that also serves as reinforcement to withstand the upper loading load. For each of the refrigerant piping 6 and the refrigerant piping 6 for supplying heat to the radiation fins 5.

Piping header 8 for inflowing and outflowing the refrigerant from the refrigerant pipes 3 and 3'. It consists of a header protection cover 9 for protecting the piping header 8.

Since the heat exchanger 2 applies the thermosiphon principle, it is installed below the snow melting heat exchanger 1 to efficiently exchange heat from the high heat generation equipment 4.

The refrigerant liquid sealed in the heat exchanger 2 receives heat from the high heat generation device 4 and turns into steam, ascends the refrigerant pipe 3 and reaches the snow melting heat exchanger l. The heat of the refrigerant that has become vapor is conducted from the refrigerant pipe 6 to the radiation fins 5 and melts the snow on the road.

The vaporized refrigerant, which has completely released its heat in the snow melting heat exchanger 1, condenses into a liquid state, flows down the refrigerant pipe 3', and returns to the heat exchanger 2 again. In this way, the refrigerant, which repeatedly changes between liquid and gas, circulates through each heat exchanger with a loop-shaped configuration.
The snow melts. Therefore, snow melting can be achieved by using surplus heat and saving energy by not using power.

For example, in the case of a building with a basement with a heating value of 10 KW, it is possible to melt snow around the building and on the roof at a rate of about 50 CIl/I (density 0.05 g/cm?) per hour. In addition, since the reheat exchanger of the snow melting device of the present invention has a height difference, the refrigerant naturally circulates during the summer when the temperature of the outside air exceeds room temperature, and the heat of the outside air is absorbed. There is no possibility that it will flow into the room. FIG. 4 is a diagram showing a second embodiment in which a snow melting heat exchanger l is installed on a road surface.

Since the grating 11 is provided to protect the heat sink 10 from the upper load, there is no need to provide the refrigerant pipe 6 shown in FIG. 2. In other words, the heat dissipation plate IO, which has no upper loading load, can be fixed in a structure where two corrugated plates are superimposed and a hollow part is formed as shown in Fig. 4, and the hollow part plays the role of a refrigerant passage. It is. Most of the falling snow passes through the grid-like openings of the grating 11 and is directly melted by the heat sink.

〔Effect of the invention〕

As explained above, according to the present invention, the heat source for snow melting using surplus heat such as exhaust heat is transferred without power, so the energy saving effect and economical efficiency are greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the configuration of a snow melting device showing an embodiment of the present invention, FIGS. 2 and 4 are cross-sectional views of the installation of a snow melting heat exchanger,
FIG. 3 is a plan view of the snow melting heat exchanger. 1: snow heat exchanger, 2; heat exchanger, 3.3'. 6: Refrigerant piping, 4: High heat generation equipment, 5: Radiation fins. 7: Drainage ditch, 8: Piping header, 9: Header protection cover, 10: Heat sink, 11: Grating. Figure 2 Figure 6 Figure 4 Figure 1

Claims (1)

[Claims] a first heat exchange means for discharging heat for melting snow;
and a second heat exchange means for exchanging heat from the heating element to supply the heat to the heat exchange means, and the heat is circulated by the thermosiphon principle to the above-mentioned surface heat exchange means connected by piping in a closed loop. A snow melting device characterized by enclosing a low boiling point refrigerant for conveyance.