JPS63194006A - 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] 1. Purpose of the invention The present invention relates to a snow melting device.

Traditionally, to melt snow on roads in snowy regions9 during the winter, such as on sidewalks, heat has been dissipated by burying electric heating cables or hot water pipes inside the asphalt or concrete pavement constructed on the roadbed. Since electric heating cables and hot water pipes are completely surrounded by the pavement, thermal energy first radiates into the pavement, passes through the pavement, and then reaches the road surface. However, with this method, most of the heat energy is absorbed by the pavement, which has extremely poor thermal conductivity, so the speed at which it is transmitted to the road surface is extremely slow, causing problems such as when there is heavy snowfall or when snowdrifts form on the road surface. At times, the snow melting speed could not keep up, making it impossible to achieve the desired objective.

In order to solve this technical problem, the present inventors have already registered Utility Model No. 1526704 (Utility Model No. 1526704
No. 66), but since there were some problems in terms of practicality, we have completely improved this and provide a new snow melting device that eliminates the drawbacks of the conventional method as described above. The purpose is to

2. Structure of the Invention The structure and operation of the present invention will be explained with reference to the embodiments shown in the drawings.

(1) is a rectangular concrete flat plate block with reinforcing bars (2) in it. The size of this block is, for example, 300 m + x 300 m + a. (3
) (3) is a circular groove formed in parallel on both left and right sides of the lower surface of this flat block body (1); (4)
is a heat insulating material installed on the bottom of the flat block body (1), and the groove (3) (3) is an opening (5) in this heat insulating material.
) (5) Shiru. (6) (6) is the groove (3)
(3) A circumferential wall member made of iron or other material with good thermal conductivity installed to constitute the circumferential wall of (3), and a concave groove (
3) Install the hose body (7) into (3) so that it fits tightly. (8)... is a relatively thin fin-shaped heat transfer plate that stands upright at appropriate intervals around the peripheral wall members (6) and (6), and the upper end surface of this heat transfer plate is a flat block body. (
It is best to install it near the surface of 1).

Since the flat plate block body (1) is of the concrete family, it is a rod body made of a non-thermal conductive material, but this single body can be removed as required for various underground works.

Therefore, when constructing the device of the present invention, for example, a large number of flat block bodies (1) are placed on a sand cushion laid on the upper surface of the lower and upper layer bases, with the concave grooves (3) facing in the (3) direction. The flat blocks (1) are installed horizontally in several rows so that they match, but before that, grooves (
3) Insert the continuous hose body (7) from the opening (5) (5) into (3) and attach it to the surrounding wall member (6) (6
).

In addition to being installed in a straight line, the hose body (7) may also have to be installed in a curved shape.
Prepare and use 1).

In a place configured as described above, when hot water is supplied to the communicating hose body (7), the hot water transfers heat from the circumferential surface of the hose body (7) to the circumferential wall member (6), and then the heat transfer is conducted from the circumferential surface of the hose body (7) to the surrounding wall member (6). After the heat is transferred to the hot plate (8), the flat block body (1)
heat dissipates to the surface. After the hot water has flowed through the entire flat block body, it may be discharged, or it may be reheated to make the water hot and then circulated further.

The peripheral wall member (6) in the groove (3) serves as a medium for transmitting hot water heat from the hose body (7) to the heat transfer plate (8), and also serves as a mediator for transmitting hot water heat from the hose body (7) to the flat plate block body (1) by the water pressure inside the hose body. It acts as a pressure-resistant fortress to prevent damage.

3. Effects of the Invention As described above, the present invention forms circular grooves (3) on the lower surface of each of the flat block bodies (1) installed in large numbers on a base, and injects heat conductive grooves into the grooves (3). A peripheral wall member (8) is installed, heat transfer plates (8) are erected around the peripheral wall member (8) at appropriate intervals, and a hose body (7) is placed in the continuous concave groove (3). Since this is a snow melting device that allows hot water to flow through the snow melting device, even though the flat block body that is safe for walking appears on the surface, there is heat conduction inside the snow melting device through the hot water. Because this is done continuously, the surface of each flat block is constantly heated, and even if snow does accumulate, it can be melted immediately, allowing you to walk with peace of mind at all times. , secondly, the desired purpose can be achieved at a relatively low cost;
It can be constructed not only on roads but also in parking lots and other places where it is necessary. Thirdly, in the case of sidewalks, various pipes and cables such as water and sewage pipes and gas pipes are buried. Excavation and backfilling of the roadbed is often carried out for repair and replacement work, but for roads with asphalt or concrete pavement structures equipped with snow melting pipelines and electric heating cable networks, this work is extremely difficult. However, according to the present invention, since the road surface is made up of a single flat block, even if various types of construction work is to be carried out, the work can be easily carried out by locally peeling off the flat blocks. This has great effects, such as making it easier to inspect pipelines and electric heating cable networks.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a partially cutaway plan view of the main part, Fig. 2 is a sectional view taken along line A-A, and Fig. 3 is a main part showing the construction state on the sidewalk. FIG. 4 is a piping diagram showing the construction state. Patent applicant: Nissaku Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] A circular groove is formed in the lower surface of each of the flat block bodies installed in large numbers on the base, and a heat conductive peripheral wall member is installed in this groove, and heat transfer plates are placed at appropriate intervals around the peripheral wall member. A snow melting device characterized in that a hose body is inserted into the vertically connected concave grooves and hot water is made to flow therethrough.