JPH0672402B2 - Snow melting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 3-1 Object of the Invention 3-1-1 Field of Industrial Application The present invention relates to a snow melting apparatus.

3-1-2 Conventional technology Conventionally, for snow melting in winter snow regions such as sidewalks, radiating heat by burying electric heating cables and hot water pipes inside the asphalt and concrete pavement constructed on the roadbed. However, since the electric heating cables and hot water pipes are completely surrounded by the pavement, thermal energy was first radiated to the pavement and passed through the pavement before reaching the road surface. However, in such a method, most of the thermal energy is absorbed by the pavement and the thermal conductivity is extremely low, so the speed of transfer to the road surface becomes extremely slow, and there was a lot of snowdrift or snowdrift on the road surface. Sometimes the snow melting speed could not catch up, so it was impossible to achieve the intended purpose.

In order to solve this technical problem, the present inventors have already devised a registered utility model No. 1526704 (Japanese Utility Model Publication No. 58-17766), but there was a problem in terms of practicality.

3-1-3 Problem to be Solved by the Invention Therefore, an object of the present invention is to provide a new snow-melting apparatus, which is wholly improved and which eliminates the above-mentioned drawbacks of the conventional method.

3-2 Structure of the Invention 3-2-1 Means for Solving the Problem The present invention forms a circular groove on each lower surface of a flat plate block body to be installed on a substrate, and the heat transfer property is formed in the groove. The peripheral wall member is installed and heat transfer plates are erected at appropriate intervals around the peripheral wall member, and an elongated hose body is provided in the continuous groove in the bottom surface of the flat plate block body. It is a device that allows hot water to flow through the hose body by inserting it from the section and fitting it.

3-2-2 Action When constructing the device of the present invention, for example, a number of flat plate blocks are arranged in several rows on the sand cushion laid on the upper surface of the lower and upper bases so that their concave groove directions are aligned. The hose is installed horizontally, but before that, a long hose body is inserted from the opening at the bottom of the groove into which the directions of the flat plate blocks are aligned, and the hose body is brought into close contact with the peripheral wall member. In addition to being installed in a straight line, there are places where the hose must be installed in a curved shape, but we will prepare and use flat plate block bodies with concave grooves formed at the corners and ends to match them.

When hot water is supplied to the communicating hose body at the location configured as described above, the heat of the hot water is transferred from the peripheral surface of the hose body to the peripheral wall member, and then to the heat transfer plate mounted around the peripheral wall member. The heat is radiated toward the surface of the flat plate block.

The warm water may be discharged after flowing through the whole flat plate block body, or may be reheated to warm water and further circulated.

The peripheral wall member in the groove serves as a medium for transmitting hot water heat from the hose body to the heat transfer plate, and as a fort having pressure resistance so that the flat plate block body is not damaged by water pressure in the hose body. .

3-2-3 Example (1) is a rectangular flat plate block body made of concrete, which contains the reinforcing bars (2). The size of this block body is, for example, 300 mm × 300 mm. (3) (3) is a circular groove formed parallel to the left and right sides of the bottom surface of the flat plate block (1), and (4) is heat insulation installed on the bottom surface of the flat plate block (1). Material (5) (5) is the concave groove (3) from the bottom surface of the flat plate block (1).
An opening opened toward (3), (6) and (6) are peripheral wall members made of iron or the like having good thermal conductivity, which are installed so as to form the circumferential walls of the concave grooves (3) and (3). The hose body (7) is inserted and fitted in the concave grooves (3) (3) having the peripheral wall member. (8) ··· is the peripheral wall member (6)
It is a fin-shaped heat transfer plate having a relatively thin thickness, which is erected at a suitable interval around (6), and the upper end surface of this heat transfer plate is installed near the surface of the flat plate block (1). Good.

Since the flat plate block (1) is made of concrete and is a simple substance made of a non-heat conductive material, this simple substance can be removed according to the needs of various underground works.

3-3 Effects of the Invention Since the present invention is the device having the above-mentioned configuration, it exhibits the following effects.

First, since an elastic hose is inserted into the peripheral wall member, when installing the hose inside the peripheral wall member,
Even if the outer diameter of the hose is the same as the inner diameter of the peripheral wall member, the hose can be forcibly inserted into the peripheral wall member, and even if there is a slight gap between them, the peripheral surface of the hose when hot water flows. The entire body bulges into a cylindrical shape and comes into close contact with the inner wall surface of the peripheral wall member, and the water temperature is reliably transmitted from the hose to the block body via the peripheral wall member.

Secondly, since the hose itself has a poor thermal conductivity unlike an iron pipe, in order to compensate for it, the hose body has a structure in which the hose is fitted and closely attached to the peripheral wall member made of iron or the like having a high thermal conductivity.

Thirdly, a fin-shaped heat transfer plate is provided on the peripheral wall member so that heat can be easily conducted into the block body and the heat can be easily dissipated from the surface of the block body.

Fourthly, in the case of sidewalks, various pipes and cables such as water and sewer pipes and gas pipes are buried, so it is often necessary to dig or refill the roadbed for repair or replacement work. Although it may be carried out, the construction was difficult on a road having a pavement structure of asphalt or concrete with a pipeline for snow melting or an electric heating cable network installed, but according to the present invention, the road surface is a flat plate block. Since it is made of a single body and the hose body can be easily attached and detached, even if various works are performed, it becomes possible to easily carry out the work by locally peeling off the flat plate block. The line and electric heating cable network can be easily inspected.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a plan view of a partly cutaway main part, FIG. 2 is a sectional view taken along line AA of the same as above, and FIG. A sectional view and FIG. 4 are piping diagrams showing a construction state.

Front Page Continuation (72) Inventor Motoharu Negishi 2-4-12 Kyobashi, Chuo-ku, Tokyo Incorporated in the Japan Stock Exchange (56) Bibliographic references Sho 63-76005 (JP, U) Sukeko 48-5226 (JP, Y1)

Claims (1)

[Claims] 1. A circumferential groove member having a circular cross section is formed in each lower surface of a removable flat plate block body to be installed on a substrate, and a circumferential wall member having thermal conductivity is installed in the concave groove member. A heat transfer plate is erected at an appropriate interval around the circumference of the flat plate block, and a long hose body is provided in the concave groove of the continuous flat plate block with a narrower width than the diameter of the concave groove provided on the bottom surface of the flat plate block. The hose body is forcibly inserted and fitted through the opening, and the hose body is installed according to the linear and curved shapes of the continuous groove, and hot water is allowed to flow through the hose body. A characteristic snow melting device.