JPS63134763A - Roof water storage type hot water recirculation snow melting method - 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 method for melting snow on a roof, and more particularly to a method for melting snow on a roof without causing it to melt by flowing the snow accumulated on the roof into a water tank using circulating hot water. It is.

[Conventional technology]

In regions with a lot of snow, it is necessary to visit sacred peaks three to five times a winter, or more depending on the location, to prevent houses from collapsing or caving in due to snow on their roofs.

It doesn't matter if this sacred mountain falls only once, but if it falls 2 or 3 times, it's good for people who have snow on the ground, but in urban areas there is no place for the snow to go, and it ends up being piled up high (higher than the roof). The scenery is often seen.

All of these tasks have traditionally been done manually, and are laborious and dangerous. Therefore, various methods have been devised in the past for snow melting based on the idea that the snow that falls on the roof should be melted on the roof.

For example, snow was melted by installing panels on the roof and circulating hot water inside the panels, or blowing warm air into the panels.

As another example, a method has been used in which circulating water is constantly allowed to flow onto the roof to remove snow before it accumulates.

[Problem that the invention seeks to solve]

However, according to the above conventional methods, panels must be attached to the entire roof or water must be constantly running.
There was a major problem in that the equipment was large-scale and the equipment cost, including the maintenance costs for maintaining the equipment, ended up being a huge amount of money. Furthermore, if snow melts every time it accumulates, there is also the problem that snow masses may fall from the roof, which is dangerous.

For this reason, many people still choose to defrost roofs manually rather than installing extremely expensive equipment, and there has been a desire for a cheaper and more reliable method of defrosting roofs.

The present invention was proposed in view of the above circumstances, and uses simple and inexpensive equipment without changing the structure of the roof, and more reliably melts snow on the roof, thereby reducing the risk of falling snowflakes. The purpose is to provide a snow melting method that does not require roof water storage type hot water circulation.

[Means for Solving the Problems] As a means for solving the above-mentioned problems, the present invention provides a water tank for storing a certain amount of water at the eaves of a sloping roof, and connects the water tank to the water pipe. Water is supplied to a water heater, and the hot water that overheats in the water heater is sent to a sprinkler pipe installed at the bottom of the roof using a pump connected to a water pipe, and the hot water flows out onto the roof from the sprinkler pipe and is deposited on the roof. A roof storage hot water circulation snow melting method characterized in that snow is poured into the water storage tank and melted in the water storage tank.

[Effect]

Hot water generated by overheating in the water heater is sent to the sprinkler pipes using water pipes and pumps, and is then discharged onto the roof. As the hot water flows over the surface of the roof, accumulated snow slides into the water tank at the eaves of the roof.

The snow that flows into the water tank is then melted by circulating hot water.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in more detail based on the drawings.

FIG. 1 is an overall perspective view showing the roof water storage type hot water circulation snow melting method of the present invention, and FIG. 2 is a side sectional view of the same.

As is clear from FIGS. 1 and 2, a water sprinkler pipe 3 is attached to the rib portion 2 of the roof 1 by a fitting 20. As shown in FIGS. A plurality of water sprinkling holes are drilled at equal intervals on both sides of the water pipe, allowing hot water sent from the water heater to flow onto the roof.

A water tank 4 for storing a certain amount of water is installed at the eaves of the roof forming a slope from the breast part 2.

The water tank 4 has side frames 6, 6 and a front frame 7 standing on a bottom plate 5 provided along the slope of the roof 1, and is formed into a triangular frame body when viewed from the side. This water tank 4, which is shaped like a household dustpan, is placed on the roof and attached to the roof 1 by a frame 8°9.
, 10. A water leak prevention material 19 such as a vinyl sheet is adhered to the inner surface of the water tank 4, and is further fixed with bolts 11 or the like. On the other hand, water tank 4
The contact area between the bottom plate 5 and the roof 1 is made by extending a vinyl sheet or the like attached to the bottom plate 5 slightly from the end of the bottom plate 5, and attaching it to the roof 1 to prevent water leakage from the water tank 4. There is.

In this case, a vinyl sheet or the like attached to the water tank 4 may be extended as it is and placed over the front surface of the roof. When covering the front of the roof, the ends of the vinyl sheet, etc. can be folded back over the rafters 10, 10 and fixed with a closure stopper, etc. By covering the front of the roof, the snow will become more slippery. It becomes easier to fall.

In addition, a plurality of overflow grooves 7a are formed in the upper part of the front frame 7 of the water tank 4, and the overflowing water is drained into the gutter 1 at the eaves.
It is leaked to 2.

l? A water supply port 14 for supplying water stored in the water tank 4 to the water heater 13 is provided at the lower part of one side of the water tank 4, and is connected to the water heater 13 by a water guide pipe 15. A filter device (not closed)' is provided around the water supply port 14 on the inner surface of the water tank 4 to prevent dead leaves, dirt, etc. from entering the water supply port 14.

The water pipe 15 is connected to the water heater 13, while 'I!
The water dispenser 13 is connected to a pump by a water pipe 16, and the pump 17 is further connected to a sprinkler pipe 3 provided in the breast part 2 of the roof 1 by a water pipe 18. That is, from the water storage tank 4 to the water conduit 15. Water heater 13, water pipe 16. pump 1
7. Then, from the water pipe 18 to the water sprinkler pipe 3. Furthermore, water or warm water is circulated from the water sprinkler pipe 3 to the water storage tank 4.

The water heater 13 may be of the same capacity as a general household boiler or an instantaneous water heater, and a part of the waste water pipe 15 or a part of the water pipe 16 from the water heater 13 to the pump 17 may be made flexible. If you can easily install piping, there is no need to install a new water heater (you can use the existing one, and it can be made cheaper).

Considering this in terms of heat, the amount of heat required to melt 1g of ice is 79.7cal (approximately 80cal).
). Therefore, for 1-proof ice, 1 ca
1-80 cal is required.

On the other hand, according to an announcement from the Takada Meteorological Observatory in Niigata Prefecture, fresh snowfall of 1 c.
al = 0.03~0.15g Shimarishuki 1ea
! =0.2~0.5g rough snow 1 c+a =0.
The weight of snow is 3 to 0.5 g.

Now, if you use lomXlom to calculate the amount of heat required to keep the snow from melting with 1 meter of snow, 1 cI! ! If we assume that the average weight of snow is 0.1g, we get:

An old-fashioned household instantaneous water heater has a capacity of about 10,000 Kcal/h, and if you use this instantaneous water heater, it will take about 3 days and 8 hours to heat 10m x 10m x 1 snowfall.
m of snow can be melted. If you use a high-capacity water heater, you can completely melt the snow in a shorter amount of time.

Next, the snow melting method of this embodiment will be explained.

When there is a certain amount of snow on the roof, hot water overheated by a water heater 13 is sent to a water sprinkler pipe 3 in the breast part 2 of the roof 1 by a pump 17. The hot water that flows out from the water holes on the side of the water pipes flows along the surface of the roof 1, so it feels as if a roller bearing is installed between the snow and the roof 1, and the snow automatically slides down the slope of the roof. Trying to fall. In this way, the snow that has slipped into the water tank installed at the eaves of the roof 1 is melted by the hot water that continues to flow into the water heater 1.
A part of the water flows into the gutter 12 overflowing from the overflow groove 7a.

In this way, according to this embodiment, without making any changes to the existing roof, a water storage tank is installed that takes advantage of the shape of the roof, and the roof is equipped with extremely inexpensive equipment that is equipped with a small-capacity water heater. Snow can be melted reliably. In some cases, it is also possible to connect to an existing water heater.
In that case, equipment costs will be even lower.

Further, according to this embodiment, since the snow is poured into the water tank and melted there, an extremely dangerous situation such as falling snow blocks can be avoided.

Furthermore, it is sufficient to operate the device while observing snow conditions, and compared to a method of constantly operating the device, there is also the advantage that maintenance costs such as fuel consumption are significantly lower.

〔Effect of the invention〕

As explained above, according to the present invention, a simple water tank is installed at the eaves of the roof without any modification to the existing roof, and inexpensive equipment is provided that includes a small-capacity water heater and a group of piping associated therewith. It is now possible to melt snow from roofs for a small fee.

In addition, since snow is melted in a water tank, there is no leakage that can lead to extremely dangerous situations such as snow falling from the roof, and this method of hot water circulation snow melting using roof water storage is extremely useful. It became possible to provide.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing the roof storage type hot water W4 ring snow melting method of the present invention, and FIG. 2 is a side sectional view of the same. 1... Hari 2... Breast part 3...
Sprinkler pipe 4...Water tank 7a...Overflow groove 12...Gutter 13...Water heater 14...
...Water supply port 15...Water pipe 16...Water pipe 17...Pump 18...Water pipe

Claims (1)

[Claims] A water storage tank is installed at the eaves of a sloping roof to store a certain amount of water, and water is supplied from the tank to a water heater through a water pipe, and the hot water that is overheated in the water heater is heated to the roof using a pump connected to the water pipe. A roof-storage type hot water system characterized in that hot water is sent to a sprinkler pipe installed in the roof, the hot water flows out from the sprinkler pipe onto the roof, and snow accumulated on the roof is poured into the water tank and melted in the water tank. Circulating snow melting method.