JP2541974Y2 - 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 heat source water in a gutter.

[0002]

2. Description of the Related Art Since industrial wastewater and domestic wastewater have a predetermined temperature, they can be used as a heat source for melting snow.
Accordingly, one end side (heating portion) of the heat pipe is disposed in a side ditch of the road through which the heat source water flows, and the other end side (radiation portion) is disposed below the road surface to melt snow on the road surface. Conventionally, there is known a heat pipe type snow melting apparatus utilizing a gutter.

FIGS. 3 and 4 show an example of such a heat pipe type snow melting apparatus utilizing a gutter. In this snow melting apparatus, the heating sections 30 of the plurality of heat pipes 3 are arranged at a predetermined pitch diagonally at the bottom of the side groove 1, and the heat radiating sections 31 of the heat pipes 3 are arranged at a predetermined pitch below the road surface 20 of the road 2. The heat pipe 3 in the side groove 1
Is curved in the vicinity of the side wall of the side groove 1, extends through the side wall in the width direction of the road 2, and mortar is applied onto the heating portions 30 of the heat pipes 3 arranged in a line at the bottom of the side groove 1. And a mortar block 40 is formed,
The heat source water W flows on the mortar block 40.

The working fluid in the heating section 30 of the heat pipe 3 is heated and evaporated by the heat source water W in the side groove 1 through the mortar block 40 and moves to the heat radiating section 31 side.
The steam gives heat to the road surface 20 above the radiator 31 to melt snow. The working fluid in the heat radiating portion 31 cooled from the road surface 20 side is condensed and returned to the heating portion 30 again, and the same heat transport is repeated.

Here, the heat radiating portion 31 of the heat pipe 3 generally needs to be extended in the width direction of the road 2, and the length L of the heating portion 30 of the heat pipe 3 is secured in the side groove 1 by an amount corresponding to this. However, since the size M of the side groove 1 in the width direction is constant, the heating portion 30 of the heat pipe 3
Need to be disposed in the side groove 1 at an inclination angle θ with respect to the longitudinal direction of the side groove 1, as shown in FIG. Therefore, the arrangement pitch P2 of the heat radiating portions 30 of the heat pipe 3 is determined by the arrangement pitch P1 of the heating portion 3 of the heat pipe 3 in the side groove 1 and the inclination angle θ.

[0006]

However, in the above-described conventional snow melting apparatus, the heating portion 30 of the heat pipe 3 is provided with the side groove 1.
Since the heat from the heat source water W flowing on the upper side of the side groove 1 is not sufficiently utilized because the heat source water W flowing in the upper side of the side groove 1 is only There were inconveniences that could not be used.

The arrangement pitch P2 of the heat radiating portion 31 of the heat pipe 3 is determined by the arrangement pitch P1 of the heating portion 30 of the heat pipe 3 in the side groove 1 and the inclination angle θ. Since the pitch P1 cannot be reduced so much to sufficiently absorb heat from the heat source water W and has a limit, the number of heat pipes 3 that can be installed is limited. As a result, the arrangement pitch P2 of the heat radiating section 31 is reduced. Is increased to cover the snow melting range, and eventually, there is a possibility that the snow melting on the road surface 20 cannot be sufficiently performed due to the inability to effectively use the heat of the heat source water W.

The present invention has been made in view of the above circumstances, and provides a heat pipe-type snow melting apparatus capable of effectively performing snow melting on a road surface by sufficiently utilizing heat of a heat source water in a gutter. The purpose is to do so.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a heat pipe type snow melting apparatus for heating the road surface by transporting the heat of the heat source water flowing in the gutter directly below the road surface by a heat pipe. In one end of the plurality of heat pipes are arranged in a plurality of stages at predetermined intervals in the vertical direction in the side groove, and a flow path is formed between one end of these heat pipes, The other end of each heat pipe is buried immediately below a road surface.

[0010]

In the snow melting apparatus of the present invention, one end of the heat pipe is heated by the heat source water flowing in the gutter, and the heat is transferred to the other end immediately below the road surface to dissipate the heat, thereby heating the road surface. Is done. In this way, the heat pipe absorbs the heat of the heat source water at one end thereof, but since the end portions of the heat pipe are arranged in a plurality of steps in the side groove, the heat pipe contacts the heat source water. The area of the end is increased, so that more heat of the heat source water can be absorbed by the heat pipe and used for snow melting.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2, a gutter 1 is provided at the end of a road 2 along the longitudinal direction (vertical direction in FIG. 2), collects wastewater W such as factory wastewater or domestic wastewater and supplies it to a drainage pipe. For example, a plurality of U-shaped concrete blocks 10 whose upper parts are opened are connected and buried in the ground so that the upper part thereof is located at the same level as the road surface 20 of the road 2. And this gutter 1
The wastewater W in the inside generally has a temperature enough to be used as a heat source for snow melting, and is used as a heat source water for this heat pipe type snow melting apparatus.

The road 2 provided with the gutter 1 is one in which, for example, concrete 21 (may be asphalt or the like) is cast on the roadbed, and the road surface 20 is inclined so as to descend toward the gutter 1. Rainwater and snowmelt can be collected in the gutter 1.

The above-mentioned heat pipe type snow melting apparatus is mainly composed of a plurality of heat pipes 3, and these heat pipes 3 penetrate the side wall 10 a of the concrete block 10 of the side groove 1, and one end of the heat pipe 3 is in the side groove 1. And the other end side is buried in the concrete 21 of the road 2 to form the heat radiating section 31. The heat pipe 3 is a known pipe in which a working fluid (for example, water or chlorofluorocarbon) is sealed in a thin cylindrical pipe having a closed structure from which non-condensable gas such as air is degassed. Is provided.

First, the heating unit 30 of the heat pipe 3 is provided with an inclination angle θ with respect to the longitudinal direction of the side groove 1 in order to secure a predetermined length L in the side groove 1 as in the conventional apparatus.
The gutters 1 are disposed horizontally on the bottom 10b of the concrete block 10 at a predetermined pitch P1. And these heating parts 30 are located in the side groove 1 in two steps. That is, a group of heating units 30 are buried and bound in the mortar to form a mortar block 40, and in this state, fixed to the bottom of the side groove 1 to form the first stage heating unit 4.
Further, another group of the heating units 30 is embedded in the mortar and bound to form a mortar block 50, and in this state, the mortar block 50 is fixed substantially at the center of the side groove 1 in the vertical direction, and the second stage heating unit 5 is Has formed.

The heat pipe 3 of the first-stage heating section 4 penetrating the side wall 10a of the concrete block 10 from the inside of the side groove 1 is horizontal so as to be substantially perpendicular to the longitudinal direction of the side groove 1 as shown in FIG. And the adjacent heat dissipating portion 31
Extends in the width direction of the road 2 so that the pitch between them becomes P2,
Further, as shown in FIG. 1, after being bent upward twice and extending upward, it extends along the road surface 20 in the concrete 21 of the road 2. The heat radiating portion 31 of the heat pipe 3 constituting the second-stage heating portion 5 is also buried immediately below the road surface 20 in the same manner as the heat pipe 3 described above. The upper and lower sides of the second stage heating section 5 are provided with flow paths K1, K of the heat source water W.
Therefore, the heating unit 4 of the first stage is heated from the upper side, and the heating unit 5 of the second section is heated from both the upper and lower sides.

The length L in the side groove 1 of the heating part 30 of the heat pipe 3 in the second stage heating part 5 and the length of the side groove 1
The inclination angle θ with respect to the longitudinal direction and the pitch P1 between the heating units 30 are set in the same manner as in the first stage heating unit 4.

The heat radiating portion 31 of the heat pipe 3 constituting the second stage heating portion 5 penetrating the side wall 10a of the concrete block 10 of the side groove 1 is provided by the heat radiating portion of the heat pipe of the first stage heating portion 4. 2, the heat radiating portion 31 of the heat pipe 3 of the second-stage heating portion 5 is arranged in parallel with the same so as to form the same mounting surface as that of the heat radiating portion 31 as shown in FIG.
Since the heat pipes 3 of the first stage heating section 4 are arranged alternately with the pitch P2, the pitch P3 of the heat radiating section 31 of the heat pipe 3 is half of the pitch P2.

As described above, the heating section 30 of the heat pipe 3 is provided in two stages in the side groove 1, so that the heat pipe 3
By the heating unit 30, the heat recovery from the heat source water W in the side groove 1 can be sufficiently performed. That is, while maintaining the length L and the pitch P1 of the heating section 30 of the heat pipe 3 at predetermined positions, at least twice the number of the heating sections 30 of the heat pipe 3 can be arranged in the side groove 1, and the road surface 20 of the road 2 can be disposed. The heat radiating portion 30 of the heat pipe 30 can be arranged at a narrow pitch P3 below the road 2, and the snow on the road 2 can be sufficiently melted.

In the present invention, it is possible to provide the heat pipe heating section in the side groove in three or more stages.

[0020]

As apparent from the above description, according to the present invention, the heat pipe heating portion in contact with the heat source water in the gutter can be expanded, so that the substantial heat receiving area of the heat pipe increases. As a result, in addition to being able to effectively use the waste heat of the heat source water, even when the temperature of the heat source water is low, the heat source water can be used for melting the snow.

[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 thereof.

FIG. 3 is a schematic sectional view showing an example of a conventional heat pipe type snow melting apparatus.

FIG. 4 is a schematic plan view showing a conventional heat pipe type road snow melting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gutter 3 Heat pipe 4 1st stage heating part 5 2nd stage heating unit 20 Road surface K1 channel K2 channel W Heat source water

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shinichi Sugihara 1-5-1 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. -24110 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A heat pipe type snow melting apparatus in which heat having a heat source water flowing in a side groove is transported directly below a road surface by a heat pipe to heat the road surface, one end of a plurality of heat pipes is vertically inserted into the side groove. Are arranged in a plurality of stages at predetermined intervals in the direction, and a flow path is formed between one end of these heat pipes, and the other end of each of the heat pipes is buried immediately below a road surface. A heat pipe type snow melting apparatus characterized by the following.