JP2523035Y2 - 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 using hot water flowing in a gutter as a heat source.

[0002]

2. Description of the Related Art As a heat pipe type snow melting apparatus utilizing hot water such as hot spring waste water as a heat source, for example, a structure shown in FIG. 3 is known. While burying each condensing portion 1a of the heat pipe 1 under the road surface of the roadway portion D of the road,
Each evaporating section 1b lower than the condensing section 1a is inserted into a side groove 2 provided on the road side and through which hot spring waste water H flows, and on the bottom surface 2a in the side groove 2, the longitudinal direction of the side groove 2, That is, it is provided to extend to the upstream side or the downstream side, and furthermore, the mortar 3 is cast to cover each evaporating portion 2b, and a new bottom surface 3a is formed.

When the evaporator 2b of each heat pipe 2 disposed in the side groove 2 is heated by the heat of the hot spring waste water H, the enclosed working fluid is heated and condensed into steam. The ice and snow on the road surface is melted by moving to the section 1a and releasing the heat transported as latent heat of evaporation by the condensing section 1a below the road surface.

[0004]

However, in the above-described conventional heat pipe type road snow melting apparatus, the evaporating portion 1b of each heat pipe 1 is inserted into the side groove 2 and the bottom surface 2a.
While arranging it on top, casting mortar 3 from above,
Since each evaporator 1b is disposed under the new bottom surface 3a of the mortar 3, the hot spring waste water H flowing in the gutter 2
Heat can be collected efficiently, but when the mortar is poured, the end side of the evaporating portion 1b laid on the bottom jumps up and protrudes into the flow path, and the mortar 3 hardens as it is. There was a fear. In addition, the evaporator 1b side of each heat pipe 2 repeatedly undergoes thermal expansion and contraction due to a temperature change of the hot spring waste water H or the like, so that the mortar 3 is easily cracked,
Since the holding action by the mortar 3 is lost, the evaporating section 1b
However, there is a possibility that the projections may protrude into the flow path.

When the evaporator 1b projects into the flow path, a part of the evaporator 1b goes out of the hot spring waste water H,
Alternatively, garbage or the like may be caught or adhered, hindering the smooth distribution of the hot spring wastewater H and reducing the heat collection efficiency.

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 having a structure in which an evaporating portion of a heat pipe does not protrude into a flow path of a side groove.

[0007]

According to the present invention, as a means for solving the above-mentioned problems, an evaporating section of a heat pipe is arranged in a side groove through which hot water flows to collect heat from the hot water and to condense the heat pipe. In a heat pipe type snow melting apparatus that melts snow by radiating heat from a part, an evaporating part of the heat pipe is disposed at the bottom of the gutter, and a reinforcing bar or a steel net or the like in which a reinforcing bar is assembled on the evaporating part. It is characterized in that a metal holding member is laid, and mortar or concrete is further cast to form a new bottom surface.

[0008]

As described above, a metal holding member such as a reinforcing bar or a steel net formed by reinforcing a reinforcing bar is laid on the evaporating portion of the heat pipe provided at the bottom of the gutter, and mortar or concrete is cast. As a result, the mortar or concrete is less likely to crack, and the evaporator is prevented from warping and jumping up at the end, so that the evaporator does not protrude into the flow path. For this reason, it is possible to stably collect heat from the warm water flowing in the gutter to melt snow.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the heat pipe type snow melting apparatus of the present invention is applied to a heat pipe type road snow melting apparatus utilizing the heat of hot spring wastewater will be described below with reference to FIGS.

The road snow melting device 11 melts snow on a roadway portion D of a road. The condensing portions 12a of a plurality of heat pipes 12 made of corrugated pipes are buried directly below the road surface of the roadway portion. The evaporating portion 12b is bent downward so as to be lower than the condensing portion 12a. Further, each condensing portion 12a is inserted near the bottom surface 13a in the side groove 13 provided on the road side portion of the roadway portion D, and inside thereof. The hot spring waste water H that is bent at substantially a right angle and extends long along the bottom surface 13 a in the upstream direction, and flows through the inside of the side groove 13.
The length of contact with the metal is increased so that heat can be collected from a wide range.

Then, on the bottom surface 13a of the side groove 13, the evaporating portions 12b are respectively extended and arranged in the upstream direction.
Is a steel mesh 14 formed by welding a reinforcing bar having a diameter of, for example, 5 mm at a pitch of 50 mm × 50 mm as a holding member.
Is placed and concrete 15 is further poured in to cover the surface, and a new bottom surface 15
a is formed (see FIG. 1). In FIG. 2, reference numeral 13b denotes a lid for closing the upper part of the side groove 13.

Next, the operation of this embodiment configured as described above will be described.

In the road snow melting apparatus, when the evaporating portion 12b of the heat pipe 12 disposed in the side groove 13 is heated by the heat of the hot spring waste water H, the enclosed working fluid becomes steam,
It moves to the low-temperature condensing part 12a buried under the road surface of the roadway part D, releases the latent heat of vaporization and condenses in the condensing part 12a, returns to the liquid-phase working fluid, and flows to the lower side in the heat pipe 12. To return to the evaporating section 12b again. At this time, ice and snow on the road surface are melted by heat released from the condensing portion 12a disposed below the road surface.

In this embodiment, the iron net 1 is placed on the evaporating portion 12b provided on the bottom surface 13a of the side groove 13.
4 prevents the end of the evaporating portion 12b from jumping up at the time of concrete casting and before hardening after casting, and the concrete 15 hardens while the evaporating portion 12b projects into the flow path. This can prevent adverse effects such as poor distribution of hot spring wastewater caused by this.

Further, since the iron net 14 is provided in the concrete 15 cast in the side groove 13, the occurrence of cracks can be prevented.

In the above embodiment, the case where road snow melting is performed by the heat of hot spring waste water has been described.
In addition to the hot spring waste water, for example, hot water or the like heated by a boiler can be used as a heat source. In addition to snow melting on roads, the present invention can be suitably implemented as a snow melting device such as a tennis court or a gate ball field.

[0017]

As described above, the heat-pipe type snow melting apparatus of the present invention has a metal holding member such as a reinforcing bar or a steel net formed by reinforcing the reinforcing bar on the evaporating portion of the heat pipe disposed in the gutter. Laying mortar or concrete, and forming a new bottom surface, preventing the evaporating section from protruding into the flow path and preventing the mortar or concrete layer from cracking, Smooth circulation of hot water is ensured, and stable snow melting ability can be ensured.
In addition, since a metal holding member such as a reinforcing bar or a wire mesh is in contact with the evaporator, heat transfer is improved, and heat from warm water is easily transmitted to the evaporator.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view (a cross-sectional view taken along line II of FIG. 2) illustrating a main part of a road snow melting apparatus according to an embodiment of the present invention;

FIG. 2 is an explanatory view showing a road snow melting apparatus in the same manner.

FIG. 3 is an explanatory view showing an example of a conventional road snow melting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Road snow melting device 12 Heat pipe 12a Condensing part 12b Evaporation part 13 Gutter 13a Bottom surface 14 Iron net 15 Concrete 15a New bottom surface H Hot spring waste water

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinichi Sugihara 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Electric Wire Co., Ltd. (72) Inventor Masahiko Ito 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Electric Wire Inside the corporation

Claims (1)

(57) [Scope of request for utility model registration] 1. A heat pipe type snow melting apparatus in which an evaporating portion of a heat pipe is disposed in a side groove through which hot water flows to collect heat from the hot water and melt snow by radiating heat from a condensing portion of the heat pipe. Is disposed on the inner bottom of the gutter, and a metal holding member such as a reinforcing bar or a steel mesh formed with reinforcing bars is laid on the evaporating portion, and furthermore, mortar or concrete is cast. A heat pipe type snow melting device characterized by forming a simple bottom surface.