JP2558876Y2 - Heat pipe type 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 heat pipe type snow melting apparatus for melting snow on a road by using hot water in a hot water header.

[0002]

2. Description of the Related Art A heat pipe is excellent in heat conductivity and does not impair the temperature uniformity even if it is considerably long. Therefore, the heat pipe is sometimes used for melting snow on a road surface. 2. Description of the Related Art There is known a heat pipe type snow melting apparatus in which one end side of a plurality of heat pipes is inserted into a hot water header through which hot water flows to melt snow on a road.

FIG. 5 shows an example in which the above-described heat pipe type snow melting apparatus 100 is installed on each of the sidewalk 2 and the road 3 of the road. This means that two hot water headers 102 for the sidewalk and the roadway are provided under the road surface below the curb 4 that separates the sidewalk 2 and the roadway 3 and are disposed under the road surface of the sidewalk 2 and the roadway 3 in the hot water header 102, respectively. One end of the heat pipe 101 for the sidewalk and the road is inserted, and if there is snowfall on the sidewalk 2 and the road 3, the working fluid in the heat pipe 101 evaporated in the hot water header 102 is removed from the sidewalk 2. In addition, the road surface of the road 3 is warmed to melt snow.

[0004] The hot water header is, for example, as shown in FIG.
If a is formed in a crank shape connected by the connecting pipe portion 102b, the temperature deviation in the short pipe portion 102a can be reduced.

[0005]

However, in the conventional heat pipe type snow melting apparatus 100 as described above, it is necessary to separately install the snow melting apparatus 100 on the sidewalk 2 and the roadway 3. In melting snow, two hot water headers 102 are required, and two types of heat pipes 101 having different lengths for a sidewalk and a roadway are required, resulting in high cost. Also,
As the number of parts increases, on-site construction becomes complicated, and there is an inconvenience that the construction period is required.

[0006] The present invention has been made in view of the above circumstances, and has as its object to provide a heat pipe type snow melting apparatus capable of keeping costs as low as possible and requiring a short construction period at the time of construction. It is.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a heat pipe type snow melting apparatus in which hot water in a hot water header is used as a heat source to melt snow on a road by a heat pipe buried under a road surface. , One hot water header buried below the boundary between the sidewalk and the roadway and disposed in the longitudinal direction of the sidewalk and the roadway, and the width direction of the roadway and the sidewalk passing through the hotwater header And a long heat pipe extending continuously below both road surfaces.

[0008] In the present invention, the hot water header includes a short pipe portion enclosing the heat pipe and extending in the longitudinal direction of the heat pipe and curved with the middle portion being the lowest point. And a communication pipe portion for communicating the same.

[0009]

According to the present invention, a single hot water header provided below the boundary between the sidewalk and the roadway is provided so as to penetrate a long heat pipe extending continuously below both the sidewalk and the roadway. Can be used as a common heating unit, and a single heat pipe can simultaneously melt snow on the sidewalk and on the road.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a heat pipe type snow melting apparatus 1 according to the present invention embedded under both side surfaces 2a and 3a of a sidewalk 2 and a roadway 3 of a road. The sidewalk 2 and the roadway 3 are, for example, concrete 2b, 3b (or asphalt or the like) is cast on the base thereof, and the road surface 2 is formed on the outer surface thereof.
a and 3a are formed. The longitudinal direction of these roads (the vertical direction in FIG. 2) is at the boundary between the sidewalk 2 and the road 3
A curb 4 is embedded along the road, and the sidewalk 2 and the roadway 3 are distinguished from each other, and the road surface 2a of the sidewalk 2 and the road surface 3a of the roadway 3 are inclined downward toward the curb 4. In addition, rainwater and meltwater can be easily collected in a pit (not shown) provided near the curb 4.

The heat pipe type snow melting apparatus 1 comprises a hot water header 20 and a plurality of heat pipes 10 penetrating through the hot water header 20, and is buried in the concrete 2b, 3b of the sidewalk 2 and the roadway 3. As shown in FIG. 1, the hot water header 20 is disposed below the curb 4 toward the longitudinal direction of the road, and the heat pipe 10 is disposed orthogonal to the hot water header 20 toward the width direction of the road. In this case, the heat pipe 10 is a long one that extends under the road surfaces 2a and 3a of the sidewalk 2 and the roadway 3, and the heat pipe 10 is a predetermined length in the longitudinal direction of the road as shown in FIG. They are arranged on a pitch.

The hot water header 20 is of a crank shape in which hot water as a heating source flows, and contains the heat pipe 10 and heat pipe 10 as shown in FIG.
The short pipe portion 21 is provided along the longitudinal direction of the road, and the road pipe portion 22 that connects the adjacent short pipe portions 21 in the longitudinal direction of the road.

The short pipe portion 21 is provided so that the heat pipe 10 is disposed substantially parallel to the road surfaces 2a and 3a of the sidewalk 2 and the roadway 3 as shown in FIG.
As shown in (1), the middle portion or the whole is of a bend type curved at a predetermined curvature, and seal joints 23 are provided at both ends. This seal joint 23 can fill any gap between the end opening of the short pipe portion 21 and the heat pipe 10 to seal the hot water and can fix the heat pipe 10 to the short pipe portion 20 by any method. For example, as shown in FIG. 3, packing 23a is packed in an oblique space formed between the heat pipe 10 and the outer surface thereof, and the packing 23a is pressed by a screw-type pressing member 23b. It may be something.

In addition to the bend type shown in FIG. 4A, the short tube portion 21 may have a bendable flexible tube 22a at an intermediate portion as shown in FIG. 4C. If there is no inclination between the side surfaces 2a and 3a of the sidewalk 2 and the roadway 3, a straight pipe type as shown in FIG. 4B may be used.

The heat pipe 10 is composed of a thin cylindrical pipe whose both ends are sealed. After the non-condensable gas such as air is degassed, a working fluid (for example, Freon) is sealed inside. A wick is provided inside as necessary to promote the reflux of the working fluid. As shown in FIG. 1, the heat pipe 10 is bent at a predetermined curvature so that the portion provided in the short pipe portion 21 of the hot water header 20 is located at the lowermost portion. It extends while inclining upward. After the heat pipe 10 is inserted into the short pipe portion 21 of the hot water header 20, it is positioned and fixed to the hot water header 20 by the seal joint 23 of the short pipe portion 21.

In the heat pipe type snow melting apparatus 1 described above, the side surface 2 of the heat pipe 10 and the
a, 3a are the sidewalk heat radiating portions 1 respectively.
0a and the roadway heat radiating portion 10b.
The intermediate portion in the short tube portion 21 of each of the heat radiating portions 10a, 10
The heating section 10c is common to the heating section 10b.

In the heat pipe type snow melting apparatus 1, the working fluid in the liquid phase in the heating section 10c of the heat pipe 10 is heated and evaporated by the hot water in the hot water header 20,
The steam is simultaneously moved to the sidewalk radiator 10a and the roadway radiator 10b, and the steam causes the sidewalk 2 and the roadway 3 to move.
The concrete 2b, 3b is heated, and the sidewalk 2 and the road 3 are melted at the same time. The working fluid cooled via the concretes 2b and 3b condenses and returns to the heating unit 10c.

As described above, the heat pipe type snow melting apparatus 1 uses the long heat pipe 10 which simultaneously covers the sidewalk 2 and the road 3 with one heat pipe.
The middle part (heating part 10c) of the hot water header 20
In this case, the heat pipe 10 and the hot water header 20 are different from those in the related art in which the sidewalk 2 and the roadway 3 are provided with a heat pipe type snow melting apparatus, respectively.
Can be reduced by half, the product cost and the assembly cost can be reduced, and the construction period on site can be shortened as the number of parts decreases.

[0019]

As is clear from the above description, according to the present invention, the number of heat pipes and the number of hot water headers are reduced by half in the snow melting on the road and the sidewalk as compared with the conventional heat pipe type snow melting apparatus. So you can
The cost can be reduced, and the construction period for laying can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an embodiment of the present invention.

FIG. 2 is a plan view showing the laid state.

FIG. 3 is a sectional view of a seal joint of the hot water header.

FIG. 4 is a diagram showing types of short pipe portions of a hot water header.

FIG. 5 is a side view of a conventional heat pipe type snow melting apparatus.

FIG. 6 is a plan view showing the laid state.

[Explanation of symbols]

 2 Sidewalk 3 Roadway 10 Heat pipe 20 Hot water header

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinichi Sugihara 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (56) References JP-A-59-126810 (JP, A) JP-A-60 −233205 (JP, A)

Claims (1)

(57) [Scope of request for utility model registration] The method according to claim 1] hot water in the hot water header as a heat source, in a heat pipe type snow melting apparatus for performing snow-melting street by buried heat pipe under the road surface, the hot water header, the boundary below the sidewalk and roadway This
They extend in the width direction of the sidewalk and roadway and
A short pipe buried in a bent state with the middle part as the lowest point
And a connecting pipe section for connecting short pipe sections adjacent to each other.
Wherein the heat pipe has its short pipe section
Encapsulated through the axially short tube portion and both end portions is continuously on both road under the width direction of the vehicle road and sidewalk distribution in rolled Vita state
Heat pipe type snow melting apparatus, characterized in that you have been location.