JPS61286426A - Freezing preventing structure of drain in drain trough - 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 Industrial Application) The present invention relates to a structure for preventing freezing of wastewater such as snowmelt water in a drainage ditch.

(Conventional technology) In cold, snowy regions, if snowmelt water from roads freezes in drainage ditches, the drainage ditches lose their function, so hot water is poured into the drainage ditches, or an electric heater placed in the ditches is used to drain the water. It is common to prevent freezing.

However, although this method is suitable for small-scale installations, when it becomes large-scale, electricity costs and heating equipment are expensive, and a large space is required to install the heating equipment.

(Problems to be Solved by the Invention) An object of the present invention is to eliminate such conventional disadvantages.

(Means for Solving the Problems) The present invention is characterized in that the heating part of the heat pipe is buried underground, and the cooling part thereof is arranged so that geothermal heat is conducted to the drain wall.

(Example) Embodiments of the invention will be described with reference to the drawings.

FIGS. 1 and 2 show one embodiment thereof.

In the same figure, (1) is bent into a single character shape, and its horizontal portion (
11) is embedded in the bottom wall (21) of the drain wall (2),
The upright part (12) as a cooling part (a condensing part of the steam that liquefies by releasing the heat of vaporization accompanying the steam by cooling) is connected to the ground (
3) A heat pipe embedded in the heat pipe (
For example, a material with high thermal conductivity is used for 1).

The drainage ditch wall (2) was formed on-site, and the ground (3) is located at a position corresponding to the bottom wall (21) of the drainage ditch wall (2).
) embed the upright part (12) of the heat vibrator (1),
After the horizontal part (1,) was placed at a depth corresponding to the bottom wall (21), it was molded according to conventional means.

In the illustrated example, the drain wall (2) is wide, so the heat vibrator (1) is inserted into the bottom wall (21) in the width direction, for example, by 3.
They were arranged in rows at predetermined intervals along the length.

In cold, snowy regions, the amount of heat required to prevent melted snow water in drainage ditches from freezing can be easily determined in advance based on weather conditions, construction conditions, etc.; The geothermal heat transported to the drain wall 2) through the length of the upright part (12) of the heat vibrator (1) 2)
The length Ll of the horizontal part (11) and the adjacent heat vibrator (
1) is determined experimentally by setting the distance between the horizontal portion (11) and the drain wall (2). From this relationship, the dimensions and spacing of the heat vibrator (1) are determined so that the amount of heat transported is greater than the amount of heat required to prevent freezing of the waste water.

FIG. 3 shows another embodiment using a pre-molded drain wall 2).

In this example, a horizontal part (11) of a heat vibrator (1) whose upright part (12) has been buried in the ground (3) in advance is heated by a mixture of cement, sand, iron scraps, aluminum scraps, iron sand, etc. embedded in a layer (4) consisting of a highly conductive material,
The bottom wall (21) is brought into contact with the layer (4) and the drain wall body (
2) was installed and configured.

In this example, since the drainage ditch wall 2) is narrow, the heat vibrators (1) are arranged in a row along the length of the ditch at predetermined intervals.

FIGS. 4 and 5 show an example suitable for implementation in a drainage ditch provided near the slope of a road.

In this embodiment, the horizontal part (1) of the heat vibrator (1) is attached to the bottom wall (21) of the drain wall (2) in the same way as in the previous embodiment.
In addition to embedding 1), the other part of the long material (1), which was partially embedded in the ground (3), was buried at a predetermined interval in both side walls (22) (22).

According to this embodiment, not only the drainage water is prevented from freezing, but also the ground near the side wall (22) is prevented from freezing, so the side wall (22) is prevented from freezing.
22) is prevented from being destroyed by earth pressure during freezing.

(Function) According to the above configuration, geothermal heat is transported from the heating part of the heat bike 1) to the cooling part, and is guided from the cooling part to the drain wall, so that the drainage water in contact with the wall 2) is Never freezes.

(Effects of the Invention) As described above, according to the present invention, it is possible to prevent freezing of drainage water in the drainage ditch and freezing of the surrounding area of the drainage ditch with a simple configuration of just installing the heat vibrator (1), and it is possible to prevent the freezing of the drainage water in the drainage ditch and the freezing of the surrounding area of the drainage ditch, and to reduce heating costs such as electricity bills. There are advantages such as there is no need to use a special drain structure for use in cold regions, and there is no need for space for installing heat vibrators.

[Brief explanation of drawings]

FIG. 1 is a plan view of one embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a sectional view of the second embodiment of the present invention. A plan view of the third embodiment of the present invention, and FIG. 5 is a sectional view taken along the line v-v of FIG. 4. (1)... Heat vibe (2)... Drain wall (3)... Ground (4)... Layer Showa pole Month Day

Claims (1)

[Claims] A structure for preventing freezing of drainage water in a drainage ditch, characterized in that a heating part of a heat pipe is buried underground and a cooling part thereof is arranged so that geothermal heat is conducted to the drainage ditch wall.