JPS626445Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cleaning device for cleaning a transparent plate attached to the surface of a solar heat collector.

A solar heat collector has a transparent transparent plate made of glass, plastic, etc. on its surface, and solar heat is applied to the internal heat collecting plate, heat collecting pipe, etc. through this transparent plate. Naturally, solar heat collectors are installed outdoors, so they are free of dust,
Dust adheres to the transparent plate. If dust or the like adheres, the transmittance of light and heat will deteriorate, and the thermal efficiency will deteriorate. It is desirable to clean the surface of the translucent plate regularly, but since solar heat collectors are generally installed in places that are difficult to reach, such as the roof of a house, they cannot be easily cleaned and are susceptible to rainwater. I could only hope that it would tip over and be swept away. However, it is not possible to remove the dirt simply by letting rainwater run through it, and the current situation is that the equipment is left dirty and used with poor thermal efficiency.

The present invention has been devised in consideration of these points, and an object of the present invention is to provide a cleaning device for removing dirt from a transparent plate of a solar heat collector.

Therefore, in the present invention, a cleaning tool is attached so as to be able to slide on the surface of a light-transmitting plate, and the cleaning tool is slid by a drive device that operates when it rains to clean the surface of the light-transmitting plate. The cleaning tool covers almost the entire width of the solar heat collector, and is designed so that the cleaning material such as a hard rubber plate or flexible sponge attached to the bottom is kept in contact with the surface of the transparent plate while sliding. It's getting old.

In addition, the driving device for sliding this cleaning tool during rainfall is a waterwheel that accumulates rainwater and rotates with its weight when a certain amount of rainwater has accumulated, but the motor can be adjusted as needed. It is desirable to set up

The illustrated embodiment will be described below. Heat collector 1
Frame 2 is formed into a rectangular shape using an aluminum profile, etc.
Install heat collecting members such as heat collecting plates and heat collecting pipes inside the
As is well known, a transparent plate 3 made of tempered glass is provided on the surface. A hot water storage tank 4 is attached to one upper end of the heat collector 1. The front surface of this hot water storage tank 4 rises almost perpendicularly from the heat collector 1, and the head is formed in a semicircular shape. This basic shape is not particularly different from those conventionally known. A rainwater guide groove 5 is formed in the head of the hot water tank 4. This groove 5 is located at the top when used on a roof etc., and the cross section of each part is V-shaped.
The width is the widest at the center and becomes narrower toward the left and right in the drawing. and,
Its both ends protrude from both end faces of the hot water storage tank 4.
In other words, rainwater falling in the rainwater guide groove 5 falls from both ends of the groove 5. A water wheel 6 is attached to both sides of the hot water storage tank 4, and a water storage section 7 is formed in the water wheel 6 to store rainwater that has fallen from the groove 5. The water wheel 6 is made up of two disks 8, 8 stacked one on top of the other with a constant interval maintained, and the water storage section 7 is formed by providing a partition between both disks. The shape of this partition is as shown in Figure 2, with a disk 8
Two plates 7-1 and 7-2 are arranged radially from the center to form a V-shape, and the tip of one plate 7-2 is bent inward at a substantially right angle. The opening angle of both plates 7-1 and 7-2 is set to 70 degrees. In other words, the water storage section 7 has both discs and the plate 7-
1, 7-2. Teeth are formed on a part of the periphery of the inner disc 8, and the gear 10 is rotated via a small gear 9 that meshes with the teeth. This gear 10 is a wheel 11
When the water wheel 6 rotates due to accumulation of a certain amount of rainwater in the water storage section 7, the oil wheel 11 rotates via the gears 9 and 10.
These mechanisms are provided on both sides of the hot water storage tank 4, and the shaft of the gear 10 is connected to both sides so that both wheels 11, 11 rotate simultaneously.

Rails 12, 12 are attached to both sides of the frame 2 of the heat collector 1, and the cleaning tool 13 is attached to the rails 12, 12.
It is attached to move on top. The cleaning tool 13 is longer than the width of the heat collector 1, has rollers 14 placed on the rails 12, 12 at both ends, and has a cross-sectional shape similar to the main column 1 as shown in FIG.
5, a rubber plate 16 made of synthetic rubber, and a holding plate 17 for attaching the rubber plate 16 to the main column. The rubber plate 16 is attached so that the tip of the portion protruding from the main pillar portion 15 is always in contact with the surface of the transparent plate 3. Although this rubber plate 16 constitutes the cleaning body, it is not limited to the rubber plate 16, and other flexible members such as brushes may be attached.

The cleaning tool 13 has the foil 1 at both ends.
A traction member 19 such as a wire rope or chain with one end fixed to the periphery of 1 is attached, and as the foil 11 rotates, the cleaning tool 13 is moved on the rail 12 via the traction member 19. . Stoppers 20 are attached to both ends of the rail 12 so as to restrict movement of the cleaning tool 13.

A weight 21 is attached to the water wheel 6 to facilitate rotation during reverse rotation. Water receivers 22, 22 are attached to both sides of the hot water tank 4 to receive water falling from the water storage section 7 when the water wheel 6 rotates, and a pipe 23 is connected between both water receivers 22, 22. . As shown in FIG. 4, this pipe 23 is attached to the lower part of the hot water storage tank 4 at the part closest to the transparent plate 3.
is formed.

The operation of this embodiment will be explained below. When installing this embodiment, since it is installed on a roof or the like, it is installed with the hot water storage tank 4 facing upward at an angle of about 30 degrees. The horizontal position is indicated by a virtual line in FIG. Therefore, the rainwater guide groove 5 will almost face the top when installed. Further, the water storage portion 7 is also tilted to the left in the drawing. This embodiment does not operate unless it rains. When it rains, the rain falling in the rainwater guide groove 5 is guided to both water storage parts 7. Therefore, when the water in the water storage section 7 accumulates up to the bent portion of the tip of the plate 7-2 as shown in the figure, the water wheel 6 is rotated counterclockwise by its weight. The rotation causes the gear 9 to rotate by the teeth of the disc 8, and the gear 1
Rotate 0. Therefore, the foil 11 rotates in the direction of the arrow. Accordingly, the pulling member 19 is pulled and the cleaning tool 13 is moved. When the cleaning tool 13 moves, the tip of the rubber plate 16 wipes the surface of the transparent plate 3, so that dirt on the surface can be removed. The cleaning tool 13 is the stopper 2
Move until it hits 0. During this time, the water wheel 6 rotates due to the weight of the water in the water storage section 7, and the water spills out, reducing the weight of the water storage section 7, but once the cleaning tool 13 starts moving, it does not require much force after that. ,
It can be pulled up. When the water wheel 6 rotates until the cleaning tool 13 reaches the stopper 20, all the water in the water storage section 7 is poured into the water receivers 22, 22. The water passes through the pipe 23 and is sprayed onto the surface of the transparent plate 18 from the holes 24.

When the water in the water storage section 7 runs out, the water wheel 6 returns to its original position due to the weight of the cleaning tool 13 itself and the weight 21, and repeats the same operation.

As described above, this embodiment uses only rainwater as a driving source and does not have any other power source.

This will still work, but if the cleaning tool 13 is heavy, if the installation location is extremely steep, or if the cleaning tool 13 is stationary.
3 has a high coefficient of friction and may not start moving, so it is desirable to install a motor 25 as shown in FIG. This motor 25 is attached to a shaft connecting both gears 10 in the hot water storage tank 4 as shown by the broken line. At this time, as shown in FIG. 6, a first cam 26 and a second cam 27 are provided around the inner disc 8, and when the other part is slightly tilted due to the weight of water, the first cam 26 turns on. A first switch 28 is installed, and when this switch is turned on, the motor 25 is operated, and after the water turbine 6 is rotated, a second switch 29 that is operated is used to reverse the rotation of the motor. When this motor is used, the cleaning material of the cleaning tool 13 may be a brush attached to rotate using the motor instead of a rubber plate. Further, even when the motor 25 is used, the cleaning tool 13 may be returned by using its own weight instead of using the reverse rotation of the motor.

As described above, according to the present invention, rainwater is accumulated and
A water wheel that rotates when a certain amount of rain has accumulated is used to slide the cleaning tool while keeping it in contact with the transparent plate surface, so there is no need for any special drive source. When it rains, the surface of the light-transmitting plate is automatically cleaned, removing dirt that has adhered to the light-transmitting plate, and maintaining the thermal efficiency of the solar water heater at a high level.

[Brief explanation of drawings]

The figures relate to an embodiment of the present invention, in which Fig. 1 is a plan view of one embodiment, Fig. 2 is a side view, and Fig. 3 is a -
4 is a cross-sectional view, and FIG. 5 is a plan view of another embodiment. FIG. 6 is a side view showing the relationship between the water turbine and the switch in the embodiment of FIG. 5. 3: Transparent plate, 4: Hot water tank, 5: Rainwater guide groove,
6: water wheel, 7: water storage section, 8: disc, 9, 10: gear, 11: oil wheel, 12: rail, 13: cleaning tool, 16: cleaning material, 19: traction member.

Claims (1)

[Scope of utility model registration request] A cleaning tool that can be slid freely on the surface of a transparent plate provided on the surface of a solar heat collector while keeping the cleaning body in contact with the surface of the transparent plate, and a cleaning tool that accumulates rainwater during rainfall and collects a certain amount of rainwater. A drive device consisting of a water wheel that rotates when accumulated and releases the accumulated rainwater, and a transmission member that is connected to the water wheel of the drive device and slides the cleaning tool on the transparent plate by the rotation of the water wheel. Transparent plate cleaning device for solar heat collectors.