JPS5929785B2 - solar heat collector - Google Patents

Description

[Detailed Description of the Invention] In a conventional solar heat collector, as shown in a cross-sectional view in FIG. Further, a hollow outer case 4, for example, is integrally provided around the connecting portions 8a located at both ends thereof.

Then, a transparent sheet 5 was placed on the outer box 4 so as to close the upper opening surface of the outer box 4, and was further fixed with an L-shaped metal fitting 6 or the like.

In addition, a heat insulating plate 7 was attached to cover the lower opening of the outer box 4.

However, in this conventional solar heat collector 1, dimension A is required to form the outer box 4 as shown in the figure, but this part does not work effectively for heat collection (in particular, dimension 8 is wasteful, and dimension C is It had the disadvantage of being somewhat effective.

That is, the surface area of the solar heat collector 10 becomes larger than the required heat collection area, resulting in loss of materials, installation space, etc.

The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to provide a solar heat receiver with excellent heat collection effects.

A detailed description will be given below based on drawings shown as examples.

FIG. 2 shows a heat collecting plate 9, in which a plurality of water storage pipes 10 are connected in the width direction via connecting portions 13, and each end is communicated with a header 14 having a substantially cylindrical cross section. .

Ribs 11.12 are provided on the water storage pipes 10a located at both ends of the heat collecting plate 90 to protrude from the water storage pipes 10a.

The ribs 11 and 12 also protrude from the header 14 in the same way.

(The details of the ribs 11 and 12 will be described later.

) Thus, the ribs 11 and 12 are provided around the gold heat collecting plate 9.

Next, FIG. 3 shows a sectional view of the solar heat collector 15.

Water storage pipes 10 located at both ends of the heat collecting plate 9 in FIG.
A rib 11 protrudes diagonally outward and upward from the top of a, and a rib 12 protrudes diagonally outward and downward from the bottom.

Furthermore, a reinforcing material 18 is inserted between both sides of the heat collecting plate 90, that is, between the ribs 11 and 12, to obtain a reinforcing effect, but since this reinforcing material 18 is not exposed to wind and rain, it can be made of wood, metal, etc. There are no restrictions on corrosion or rust resistance.

Note that the reinforcing material 18 is used as appropriate, and is not limited thereto.

Next, the lower part of the transparent sheet 16 is slightly wrapped around the ribs 12 to cover the heat collecting plate 9, and then the heat insulating material 17 is inserted between the ribs 12.

Thus, the transparent sheet 16 is secured to the ribs 12, and the heat collecting plate 9 is mounted on the ribs 11 and 12 using the ribs 11 and 12 as fulcrums.

Furthermore, except for contacting the ribs 11 and 12, the transparent sheet 16 does not come into contact with the heat collecting plate 9, and in particular does not necessarily come into contact with the water storage pipe 10 (because it is covered with the heat collecting plate 9).

Therefore, it is preferable to consider the protruding direction, protruding length, etc. of the ribs 11 and 12 so that the transparent sheet 16 does not touch the water storage pipe 10 when the transparent sheet 16 is covered as described above.

When the transparent sheet 16 touches the heat receiving tube 10, the surface of the water storage tube 10 receives heat and becomes high temperature, causing the transparent sheet 16 to undergo thermal deformation.

The space formed by the transparent sheet 16 and the heat collecting plate 9 is divided, resulting in a disadvantage that heat convection is reduced and thermal efficiency is reduced.

As described above, the present invention is characterized by covering the heat collecting plate 9 with the transparent sheet 16 and eliminating the conventional outer box.

FIG. 4 shows another embodiment, in which the transparent sheet 16 is made of a heat-shrinkable film and completely wraps around the heat collecting plate 9.

Further, the water storage pipes 10a located at both ends of the heat collecting plate 9 may have any shape such as a rectangular cross section as shown in the figure.

As described above, in a heat collecting plate made up of a plurality of water storage pipes arranged in a row in the width direction, the water storage pipes located at both ends of the heat collecting plate are directed diagonally outwardly upward from the upper part and diagonally outwardly downwardly from the lower part. It is characterized by having ribs protruding from each side and covering the ribs with a transparent sheet using the ribs as fulcrums, so that heat can be collected not only from the top surface but also from the sides.
Moreover, unlike the conventional example, the parts that are not effective in collecting heat can be eliminated, and a solar heat collector with excellent heat collecting effect can be provided.

Furthermore, it can also prevent the intrusion of rainwater, etc.

[Brief explanation of drawings]

Figure 1 is a sectional view showing a conventional example, Figure 2 is a plan view, and Figure 3 is a top view.
Figures 4 through 4 are cross-sectional views. 9... Heat collection plate, 10. IQa... Water storage pipe, 11°12... Rib, 15... Solar heat collector, 16... Transparent sheet.

Claims (1)

[Claims] 1. In a heat collecting plate made up of a plurality of water storage pipes arranged in a row in the width direction, from the top of the water storage pipes located at both ends of the heat collecting plate diagonally outward and upward, and from the bottom diagonally outward and downward. A solar heat collector characterized in that each rib is made to protrude and a transparent sheet is covered with the rib as a fulcrum.