JPH0262673B2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention melts snow on the roof of a building by pumping up water from an underground water tank and sprinkling it with sprinklers, and returns the melted water to the underground water tank. Regarding a roof snow melting device.

(Prior Art and Problems) In regions with heavy snowfall, it is not an easy task to remove snow accumulated on the roofs of buildings.

In addition, with normal pitched roofs, snow damage such as falling snow in a concentrated manner and damaging neighboring trees and the like is also considered to be a problem.

Therefore, as in Utility Model Publication No. 42-7733, a device has been devised in which a sprinkler pipe is installed in the ridge of the roof, groundwater is pumped up into the pipe, and water is melted by spraying water near the eaves using a spray nozzle. However, with this device, a large amount of water is required to melt a predetermined amount of snow, and the area around the building becomes flooded with water, and new problems such as freezing are caused.

On the other hand, as in Utility Model Publication No. 41-5557, a snow removal device has been proposed in which a water discharge pipe with a large number of water discharge holes is attached to the top of the roof, and the water released through the water discharge pipe is used to slide off the snow. It is difficult to slide off accumulated snow simply by discharging water, and another problem arises in that additional effort is required to remove fallen snow from around buildings.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and it pumps up water stored in an underground water tank, scatters and melts accumulated snow through a rooftop sprinkler, and melts the accumulated snow. The purpose of the present invention is to provide a melting device that can enhance the effect of melting snow by returning snow to an underground water tank, and can also smoothly process melt water.

(Example) Hereinafter, the roof snow melting device of the present invention will be explained in detail based on the drawings.

FIG. 1 is a schematic cross-sectional view illustrating a device for melting snow S accumulated on the roof 11 of a building 1, and FIG. 2 is a system diagram showing the melting procedure.

That is, the building 1 has a so-called butterfly-shaped roof 11 that slopes upward from approximately the center toward the outer periphery in plan view,
An upper opening 13a is formed at the bottom of the slope,
A melt water flow chamber 13 is formed extending from the upper opening 13a to the building floor 12. An underground water tank 2 capable of storing a predetermined amount of water is provided below the meltwater flow chamber 13, that is, under the building floor 12.

The lower end of the water pipe 3 is disposed within the underground water tank 2, and the upper end thereof projects onto the roof 11 through the upper opening 13a. Further, a sprinkler 4 is attached to the upper end of the roof, which can spray hot water from the water pipe 3 over the entire roof surface.

As for the performance of the sprinkler 4, it is preferable that the scattering trajectory is low, the water droplet size is large, and that water can be uniformly sprinkled around and far away.

The water conduit 3 pumps up the stored water W in the underground water tank 2 via the strainer 31. As an example of a specific pumping method, a pump P and a heating boiler V are connected in series, and the pump P pumps the water W from the strainer 31. The stored water W is forcibly pumped up, appropriately heated by a heating boiler V, and sprinkled with sprinklers 4.

Further, a drain valve 32 is provided in the water conduit 3 in parallel with the pump P.

Furthermore, the underground water tank 2 is provided with a supply water pipe 6 for replenishing the stored water, and when the stored water falls below a predetermined water level by a ball tap type water level adjustment device 61, the water level adjustment device 61 is turned on and water is discharged from the supply water pipe 6. will be replenished.

On the other hand, a bathroom is formed in a room adjacent to the underground water tank 2, and hot water having a predetermined temperature is supplied from a bathtub 5 in the bathroom through a faucet 51.

That is, the stored water W in the underground water tank 2 is sufficiently heated by geothermal heat or the like, but if this amount of heat is insufficient, it is possible to heat the stored water W to a predetermined temperature with hot water from the bathtub 5.

Furthermore, as described above, the stored water W pumped up by the pump P can be heated by the heating boiler V.

Next, the melting method using the present melting apparatus will be specifically explained.

First, water is replenished into the underground water tank 2 through the supply water pipe 6 or the like, and heated to a predetermined temperature using geothermal heat or hot water. Next, by operating the pump P, the stored water W is pumped up through the strainer 31 and reaches the sprinkler 4 via the water pipe 3.
Sprinkle water from above the snow on the roof. In this watering, the snow S is first scattered by the watering force from the sprinkler 4. Furthermore, the snow S is directly melted by the temperature of the stored water W.

The melt water formed by melting the snow S collects in the center of the building roof 11 and flows through the upper opening 13 of the melt water flow chamber 13.
The melt water flows down from a into the downstream chamber 13. This meltwater is then stored in an underground water tank 2 provided at the lower part of the meltwater flow chamber 13. i.e. sprinkler 4
The stored water sprinkled with water will be returned to the underground water tank 2 again.

When the melt water flows into the underground water tank 2 in this way, the stored water W in the underground water tank 2 is cooled, so hot water is added from the faucet 51 as necessary to raise the temperature of the stored water. Further, if necessary, heating is performed by a heating boiler V.

By repeating the above steps, the snow on the roof can be effectively melted.

(Effects) According to the above-mentioned melting device, since the melt water flow chamber is provided inside the building and the underground water tank is provided under the building floor, the water sprinkled from the sprinkler can be maintained at the desired temperature. The sprinkler's scattering effect over the entire area can melt snow more effectively, and it is an extremely rational water melting method that allows meltwater to flow into an underground water tank, then pumps up the stored water and sprinkles it again, so there is no falling of snow. , and does not cause secondary harm due to melt water.

Furthermore, since the device itself can be constructed integrally during construction of a building, it does not look strange and is extremely practical.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view illustrating the melting apparatus of the present invention, and FIG. 2 is a system diagram illustrating the procedure of the melting method of the present invention. 1... Building, 11... Roof, 13... Melt water flow chamber, 13a... Upper opening, 2... Underground water tank, 3...
...Water pipe, 4...Sprinkler, P...Sump pump, V...Heating boiler, S...Snowfall.

Claims (1)

[Scope of Claims] 1. A butterfly-shaped roof that slopes upward from approximately the center toward the outer periphery; an upper opening is formed at the lowest point of the slope, and a meltwater flow chamber that penetrates from the upper opening to the bottom of the building floor; , an underground water tank provided under the floor of the building; a water pipe whose lower end is placed in the underground water tank and whose upper end projects from the upper opening of the roof; and a pump and a heating boiler connected in series in the water pipe. and a sprinkler installed at the upper end of the water pipe and spraying hot water pumped up by the pump over the entire roof surface.