JPH0334461Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a roof snow melting device.

(Prior technology) In the snowy regions of Japan, snow removal work every winter is very difficult, but on general roads, even when snowplows are used, there are fewer situations where traffic is paralyzed for a long period of time. ing. However, contrary to this method of removing snow from roads, the efficiency of snow removal from roofs has lagged far behind, and the current method of removing snow from rooftops is still dominated by man-force tactics using shovels and snow shovels. . Therefore, in snowy regions, it is impossible to avoid such hard and dangerous snow removal work, which results in several deaths and injuries every year, as well as damage to roof tiles during snow removal. There are many cases, and it requires a large amount of money and a lot of time in one winter.

Of course, various roof snow melting devices have been researched and developed over the years, but only a few have been put into practical use.First of all, melting snow requires a huge amount of heat. Since it is necessary, the issue is the heat source that draws out the amount of heat. For example, it is known to melt snow by wiring heating wires to the roof, but the reality is that it requires a large amount of electricity to completely melt snow that accumulates up to 1 meter in one night, making it economically unprofitable. On the other hand, there are snow melting devices that use a method that sprinkles water on the roof like rain.
This method has the problem that during a snowstorm, the water is not applied evenly to the entire area, and the area where the snow is melted is unevenly distributed.At the same time, water can enter the gaps between tiles with the wind, causing a backwater phenomenon. do. Furthermore, in the above method, since water is applied in the form of water droplets or mist, on days when the temperature is low, the water freezes while it reaches the roof, completely losing its snow-melting function.

(Objective of the Present Invention) As described above, there are various methods of snow melting devices for roofs, but the conventional devices have the above-mentioned problems. Therefore, the present invention was devised to solve this problem, and provides an apparatus that can cope with heavy snow and has low running costs.

(Structure of the present invention) The present invention is structured with the following features in order to solve these problems.

(1) Pipes with many small holes are installed horizontally on the roof.

The number of pipes depends on the size of the roof.
If the roof is small, you can install one pipe at each end, and if it is a large roof, one pipe should be installed in the middle.
Also, water is sent up to the pipe from below, but due to a drop in the water head at the end of the pipe,
The pipe is supplied with water from both sides to avoid imbalance in the discharge water.

(2) A sensor is installed to control the timing of drainage from the pipe. That is, the sensor has the function of sensing temperature and humidity,
If the temperature is below a certain level and the humidity is above a certain level, the water pump will operate. Here, the above-mentioned sensor is a temperature and humidity sensor, and may be a combination of a thermometer and a hygrometer, and a conventionally commercially available sensor can be used, and is not a sensor unique to the present invention.

(3) Equipped with a solenoid valve to discharge water inside the pipe. In other words, even if the water supply by the pump is stopped, water remains in some pipes, and this residual water can cause damage to the pipes, so solenoid valves are installed at necessary points on the pipes. All the water in the pipes is drained out as soon as the water supply is stopped. Here, a solenoid valve is a device that opens and closes a valve using an electromagnet.
It is possible to use a material similar to that often used in the construction of hydraulic circuits and the like.

(4) Installation of a pressure regulating valve Although this valve is not an essential component of the present invention, it regulates the water pressure and controls the amount of water discharged from the pipe. In other words, it is necessary to distribute water evenly, but there are cases where the amount of snow that accumulates differs depending on the location and direction of the building. can do. This pressure regulating valve does not have a special structure, and may be the same as one used in a hydraulic circuit or the like.

The snow melting device of the present invention is comprised of the above-mentioned elements, and one embodiment will be described in detail below with reference to the drawings.

(Example) FIG. 1 shows a specific example of the snow melting device of the present invention.
1 is a pipe, 2 is a roof, and the pipe 1 is installed along a ridgeline 3 at the top of the roof 2. 4 is a pump, and a pipe 1 runs from the pump 4 to under the eaves.
d stands up vertically and is piped, branching in two directions at the A end, one along the eaves and the other along the roof 2.
It extends toward the top of the pipe, and water can be supplied from both sides of the pipes 1a and 1e installed along the ridgeline 3. By the way, there are 5 tiles on roof 2.
are arranged (see Figure 2), and the pipes 1a,
1e is the pipe that is installed on top of the tile 5, 1a, 1e
Small drainage holes 6, 6, . . . are bored in the outer peripheral surface of the drain hole. In general, the size of the drainage hole 6 is not particularly limited, but an inner diameter of about 2.5 mm to 3 mm is used, and the drainage hole 6 is provided on both sides of the ridge 7 of the curved tile 5 to prevent drainage. The water will flow toward the troughs 8 of the tile 5.

FIG. 3 shows another embodiment, in which when the roof 2 is large, it is insufficient to install piping only at the top of the roof, so another pipe 1a must be installed in the middle. And these two pipes 1a, 1
A pressure regulating valve 9, 9 is provided on the pipe connecting a to control the water pressure and adjust the outflow amount. The piping means for such pipes 1a, 1a is arbitrary, but the pipe 1 installed on the roof 2
Only pipes a and 1a are horizontal, and the other pipes 1,
For example, the pipe 1b installed under the eaves in FIG. 1 is not horizontal but has a slight inclination. The direction of inclination will differ depending on the mounting position of the solenoid valve connected to the pipe 1b, but if it is installed at the outlet of the pump 4, for example, the A end of the pipe 1b may be made somewhat lower than the B end. . In other words, when the pump 4 is stopped and the solenoid valve (not shown) is switched, the water in the pipes 1d and 1c that stand up vertically from the pump 4 will drain out, but the same goes for the water in the pipe 1b. If the A end is lowered, it will be ejected. The water in the pipe 1a, which is piped parallel to the ridgeline 3 of the roof 2, is discharged from the discharge hole 6, so there is no need to incline it. Conversely, if the B end of the pipe 1b is lower than the A end, water will remain in the pipe 1b, so it is necessary to attach a solenoid valve to the B end to drain water from the B end. Furthermore, although not shown in the drawings, the device is equipped with a sensor for sensing temperature and humidity, and the pump 4 is controlled by the sensor. The above-mentioned sensor used here is not special, and a commonly used sensor is sufficient.

Figure 4 shows the details of section C in Figure 1. In section C, pipe 1c branches in two directions and is led to pipes 1a and 1e that are piped to both roofs 2 and 2. However, pressure regulating valves 9, 9 are installed near the branch points of each pipe 1a, 1e, so that the flow rate to each pipe 1a, 1e can be adjusted. In this way, by providing the pressure regulating valve 9 near the branch point, if the amount of snow on each roof 2, 2 differs depending on the direction of the building, the pressure regulating valve 9 can be used to control the amount of snow from the drain hole 6. control the amount of water discharged.

As described above, the roof snow melting device according to the present invention is constructed by installing a pipe on the roof, which has many small drainage holes, and is operated by a pump that senses temperature and humidity. When water is supplied to the pipe and the water supply from the pump is stopped, water remaining in the pipe can be discharged by a solenoid valve, and the following effects can be obtained.

(Effects) (1) The water used in the snow melting equipment generally has a temperature of 13°C.
Since well water at ~15℃ is pumped up and used, the well water, which is relatively warmer than tap water, can easily melt the snow that accumulates on the roof. This allows the snow to melt uniformly throughout the area without changing the area where it melts. The device is heated to 13℃~
Since well water is used, which is relatively warm at 15 degrees Celsius, the entire roof tile is heated, so snow that falls on the roof disappears immediately.

(2) In addition, the running cost of using well water is low, and sensors that detect not only temperature but also humidity allow water to flow only when necessary.
It can be fully put to practical use as a snow melting device.

(3) Furthermore, this device can drain all the water remaining in the pipe when the pump is stopped using a solenoid valve, so that the pipe does not freeze and break.

[Brief explanation of the drawing]

Fig. 1 shows a specific example of the roof snow melting device according to the present invention, Fig. 2 shows details of the pipe installed on the roof, Fig. 3 shows another embodiment, and Fig. 4 shows the division of the pipe. Examples are shown in which pressure regulating valves are attached to the branch points. 1... Pipe, 2... Roof, 3... Ridgeline, 4...
...Pump, 5...Tile, 6...Drain hole, 7...Mountain, 8...Trough, 9...Pressure adjustment valve.

Claims (1)

[Scope of utility model registration request] In a snow melting system where a pipe with many small drainage holes is installed on the roof, a sensor that detects temperature and humidity is attached to the controller of the pump that supplies water to the pipe, and a solenoid valve is attached to the pipe. When the pump is stopped, the electromagnetic valve is activated, allowing the remaining water in the pipe to be discharged, and the pressure is adjusted at the branch points of the pipe leading to both roofs which are slanted left and right at a predetermined angle, and at other appropriate locations. A roof snow melting device characterized by having a valve installed.