JPH0339121B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to snow melting equipment installed when it is desired to forcefully remove snow from roads, sidewalks, parking lots, airports, tennis courts, parks, etc. The present invention relates to a snow melting device that attempts to melt snow on a road board by completely passing water through a water passage plate, which is different from conventional snow melting devices using a water sprinkling method or a non-sprinkling method.

[Conventional technology]

The water sprinkling method is to spray water directly from a pipe, or to install a nozzle and spray water using that nozzle.

In this case, especially since the piping on the road is finished by rolling concrete, differences in asphalt pavement wear (abrasion), concrete wear (wear), and nozzle wear (wear) cause differences on the road, which can cause cars to This often caused problems with the running of cars and the walking of people.

In addition, not only is the wear and tear not uniform, but if the concrete is damaged or the nozzle is damaged, water may seep into the roadbed, washing away the roadbed material, causing the road to cave in, or causing water to splash onto cars and pedestrians. There were many negative effects.

Furthermore, the reality is that the oldest facilities are constantly being repaired at great expense.

On the other hand, the non-sprinkling method melts snow by burying so-called pipes and electric wires under the road surface, so it has the following drawbacks compared to the pipe method.

(1) The thinner the pavement surrounding the buried pipes, the better the heat conduction to the above ground (surface). However, on the other hand, the pavement must be made thicker because it will be damaged by the amount of cargo carried by passing vehicles.

(2) As the amount of pavement decreases, it will cause problems for the buried pipes, so it is necessary to maintain a certain thickness of pavement at all times, such as overlays, in areas where the amount of pavement decreases.

(3) It is difficult to repair pipes that are cut, damaged, or leaked, and it takes a lot of time and money to repair them.

(4) When replacing or repairing pavement, buried pipe materials will affect the construction work.

(5) If the pipes (buried pipes) become clogged and the pipes need to be replaced, it will take a huge amount of money and time. Snow melting (snow removal) is especially difficult in urban areas where there is a lot of car traffic.

In addition, regarding the method of burying electric wires, please refer to (1) above.
There are problems (2) and (3).

In addition, the initial cost is high for both the pipe method and the buried electric wire method.

In particular, the running cost of burying electric wires is outstanding.

[Problem that the invention seeks to solve]

The present invention is directed to the above-mentioned (1) water sprinkling method and non-water sprinkling method.
The present invention provides a snow melting device that solves the problems in (5) to (5).

[Means for solving problems]

In the present invention, a water-impermeable base 1 is formed at a location where snow is to be removed, and fine aggregate 2 is placed on top of this water-impermeable base 1.
A water passage board 3 is installed in which the water passage plates 3 are hardened with fine voids between them, and a road plate 4 is formed on the upper surface of this water passage plate 3. The gist is that a water pipe a for passing river water etc. into the board is attached, and a water collecting pipe 5 is attached at a position lower than the water pipe a on the opposite side edge.

〔Example〕

Fig. 1 shows an embodiment related to a road, in which a heat insulating board 6 is laid on a water-impermeable base 1 in a downwardly sloping state from both left and right edges of the road toward the center to prevent heat from escaping underground. A water passage plate 3 is laid down, water passage pipes a are buried on both the left and right edges of this water passage plate 3, and a water collection pipe 5 is buried in the center of the water passage plate 3 at a position closer to the water passage pipe a. bury the water board 3,
A case is shown in which a road plate 4 is formed on top of the road plate 3'.

The water passage plate 3 may be installed in advance by being manufactured in a factory and transported to the site, or may be laid at a desired location on site.

By using a hardening agent such as a two-wave resin, it can be formed continuously at the desired location on-site.

When laying, it can be done manually by mixing the aggregate and the resin used for hardening on site, or it can be done by machine, such as a finisher used for paving.

The water passage plate 3 can be formed by mixing a foaming agent when hardening aggregate such as sand or fine stone with cement or adhesive, and creating minute voids in the form of a confectionery-like structure. Alternatively, when molding, gas may be forced into the mold and permeate therethrough, thereby creating fine voids so that they form a confectionery-like shape.

Other aggregates used for forming are those with as much marumi as possible, such as spherical iron slag, and cement and two-component resins are good for hardening and bonding, and resins harden quickly.

On the other hand, cement hardened materials are cheaper than resin materials.

Any desired coloring is possible by coloring the aggregate or two-component cured resin used.

Therefore, colors can be selected depending on the situation, such as safe areas, dangerous areas, parks, squares, etc.

The aggregate 2 can be arbitrarily selected depending on its use, purpose, effect, etc.

For example, it may be an inexpensive material such as the above-mentioned iron slag, or a naturally occurring material such as a whetstone, pebble, gravel, sand, or red stone.

The strength, degree of abrasion, color, etc. of the water passage plate 3 can be changed depending on the selection of compounding materials and adhesives, the compounding amount, etc.

Furthermore, wasteful use of groundwater and ground subsidence can be prevented by making snow melting water reusable or returning it underground.

Furthermore, if an aggregate that generates heat when oxidized, such as iron slag, is used, the snow melting effect will be even better because it will be heated by passing hot water and will generate additional self-heating.

In this case, the ability to generate heat may decrease after a certain period of time, but it is desirable to have a device that recovers its ability to generate heat depending on the outside temperature in the summer, solar radiation, secondary radiation, etc.

The use of such materials will result in further energy savings and
This will contribute to resource conservation.

At this time, a small amount of water, such as ground water, river water, or tap water, is sufficient to accelerate curing, and the temperature of the water in this case is completely irrelevant.

Therefore, water that is readily available is sufficient.

For example, when water comes into contact with iron slag, the iron slag oxidizes, and the heat generated is sufficient to melt snow.

It is also effective to mix in something that increases heat conduction efficiency, such as metal powder.

Therefore, if such an aggregate is used, the present invention can be used more effectively in a wide area because it can be made without a so-called high heat source (ground water, hot water, etc.).

In the figure, 7 is a side gutter, 8 is a well installed near the side gutter 7, 9 is a pump that pumps up groundwater, 10 is a water pipe that sends the pumped groundwater, 11 is a dust removal device for collected snow removal water, and 12 is a Snow melting water supply device, 13 is a circulation pump for dust-removed snow melting water, 14
1 is a snow melting water heating device, and 15 is a drain.

Although the road in FIG. 1 shows a road that is high in the center and low on both sides, the same effect can be applied to a one-way type road.

〔Effect of the invention〕

Since the present invention is configured as described above, if underground water or hot water is sent to the water passage plate through the water passage pipe,
Groundwater and hot water seep through the water board evenly over the entire surface of the board, and the groundwater and hot water warm the roadboard above the water board from below, melting snow on the roadboard.

In addition, since a water-impermeable base is provided below the water passage plate, the water passage board itself can function as a water pipe, just as if a water pipe was installed, without allowing groundwater or hot water to flow underground. As a result, the groundwater and hot water are conducted to the predetermined drainage portion through the minute gaps in the water passage plate, so that the road plate on the water passage plate is heated well.

Moreover, the groundwater and hot water that have been conducted to the designated drainage area are not directly drained into a side ditch, for example, but are collected in a water collection pipe installed closer to the water flow pipe on the opposite side of the water flow pipe. This collected water is circulated through water pipes and reused, which prevents wasteful use of underground water and ground subsidence.The outside air sprinkled on the upper road surface cools the surface and removes dirty snow containing mud and dust. Instead of collecting water, the clean water that just permeates through the water passage plate can be immediately recycled and used, so there is no need to use a large amount of groundwater, and it exhibits excellent economic efficiency and practicality suitable for the energy-saving era. I will do it.

As described above, water passing through the water passage plate provides an excellent snow melting device that solves all of the above-mentioned drawbacks of conventional water sprinkling snow melting devices and non-sprinkling snow melting devices.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of this device installed on a road with both sides flowing, and FIG. 2 is an explanatory diagram of piping. a...Water pipe, 1...Water impermeable base, 2...
...Aggregate, 3...Water board, 4...Road board, 5...Water collection pipe.

Claims (1)

[Scope of Claims] 1. Form a water-impermeable base in the area where snow is to be removed, and lay a water-permeable plate made of fine aggregate compacted with fine voids on top of the water-impermeable base. A road plate is formed on the upper surface of the water plate, and a water passage pipe is attached to one side edge of the water plate to allow underground water, hot water, river water, etc. to pass through the plate, and a water passage plate is attached to one side edge of the water plate. A snow melting device characterized by having a water collection pipe attached at a lower position than the water pipe, and circulating the water collected by the water collection pipe to the water pipe for reuse. 2. The snow melting device according to claim 1, wherein water passing pipes are attached to both left and right edges of the water passing plate, and a water collecting pipe is attached to the center of the water passing plate at a position lower than the water passing pipes.