JPS6345641Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air heating solar heat collector that can heat air using solar heat and use this air for heating, drying, etc.

When multiple solar thermal collectors for air heating are connected and used, it is necessary to connect each solar collector in a continuous manner with a connecting duct, and to send the heated air to the required location, there is a need to It is necessary to connect the supply duct to the device. In the former case, conventionally, a connecting duct with flanges attached at both ends is used, and this connecting duct is attached to the peripheral wall of the case of each heat collector, and the flanges at the tips of the ducts attached to each heat collector are connected to each other. However, this had the problem that the unit cost of the connecting duct was high and the installation work was troublesome. Moreover, if the mounting positions of the ducts attached to each heat collector are even slightly shifted, there is a problem in that connecting the ducts to each other becomes extremely troublesome. Moreover, in the latter case, it was troublesome to attach the supply duct to the heat collector.

The purpose of this invention is to provide a solar heat collector for air heating that solves the above problems all at once.

The solar heat collector for air heating according to this invention consists of a case as a whole, and a duct connection port that is slightly larger than the outer peripheral edge of the duct end is provided on the case peripheral wall, and on at least one of the inner and outer surfaces of the case peripheral wall. A flexible sheet is attached to close the duct connection port, and a hole smaller than the duct connection port and the outer peripheral edge of the end of the duct is bored in the flexible sheet.

In the above, the size of the duct connection port is assumed to be slightly larger than the outer peripheral edge of the end of the duct.
In addition, flexible sheets can be made of heat-resistant rubber, for example.
It is made from EPDM etc. The size of the hole drilled in the flexible sheet is made slightly smaller than the outer peripheral edge of the end of the duct.

According to this solar heat collector for air heating,
When the duct is inserted into the hole of the flexible sheet, the portion of the flexible sheet surrounding the hole is bent in the insertion direction of the duct and comes into close contact with the outer peripheral surface of the duct. Therefore, when attaching the duct to the solar heat collector for air heating, there is no need to prepare a separate gasket, and the duct connection port can be easily and reliably sealed. Moreover, even when connecting a plurality of solar heat collectors for air heating in a continuous manner using a connecting duct, it is possible to easily connect them in a continuous manner using a single straight connecting duct at the installation site. Further, even if the positions of the duct connection ports in adjacent heat collectors are slightly shifted, the two can be easily communicated through the connecting duct.

This invention will be explained below with reference to the drawings.

In the following explanation, the front refers to the side that is exposed to sunlight, and the back refers to the opposite side.

In FIGS. 1 and 2, an air heating solar collector 1 is entirely composed of a case 2. As shown in FIGS. Case 2
The case consists of a case peripheral wall 3 formed by assembling aluminum extrusion materials into a frame shape, a case rear wall 4 formed of a heat insulating plate, and a case front wall 5 formed of a transparent plate. 4 and the case front wall 5 is an air flow passage 6.

The case peripheral wall 3 is provided with a horizontally long rectangular duct connection port 7 that communicates the airflow passage 6 with the outside. The duct connection port 7 has a shape corresponding to the outer peripheral edge of the end of the duct and is slightly larger than the outer peripheral edge of the duct. A rubber sheet 8 that closes the duct connection port 7 is attached to the inner surface of the case peripheral wall 3. The peripheral edge of the rubber sheet 8 is fixed around the duct connection port 7 by a presser metal plate 9. The rubber sheet 8 has
A hole 10 is formed which has a shape corresponding to the outer circumferential edge of the end of the duct and is slightly smaller than the duct connection port 7 and the outer circumferential edge of the end of the duct. Further, on the outer surface of the case peripheral wall 3, L-shaped fixing fittings 13 are attached to the upper and lower sides of the duct connection port 7, respectively. The distance between the horizontal walls of the fixture 13 is slightly wider than the thickness of the duct. A metal solar heat collecting plate 11 is closely fixed to the front surface of the case rear wall 4. A solar heat absorbing film is provided on the front surface of the solar heat collecting plate 11. Solar heat collector plate 11
In order to provide a solar heat absorption film on the front surface of the heat collecting plate 11, it is preferable to perform a solar heat selective absorption film treatment on the front surface of the heat collecting plate 11. Alternatively, a solar heat absorbing film may be formed by painting the front surface of the heat collecting plate 11 black.

A method of communicating such air heating solar heat collectors 1 with each other using the straight prismatic cylindrical duct 12 will be described with reference to FIG. 3. first,
Case peripheral wall 3 of one solar heat collector 1 for air heating
The duct 12 is inserted into the inside through the hole 10 of the rubber sheet 8 that closes the duct connection port 7 made in the hole. At this time, the portion of the rubber sheet 8 around the hole 10 is bent inward to tightly contact the outer circumferential surface of the duct 12. Next, connect another solar heat collector 1 for air heating to the heat collector 1 whose duct connection port 7 is first.
Place the previous heat collector 1 so as to face the duct connection port 7 of
(See Figure 3a). Then, the duct 12 is pulled out from the heat collector 1 on the right side and inserted into the hole 10 of the rubber sheet 8 of the duct connection port 7 in the heat collector 1 on the left side. Then, the portion of the rubber sheet 8 of the right heat collector 1 around the hole 10 bends to the left and comes into close contact with the outer peripheral surface of the duct 12, with the tip thereof coming out from the duct connection port 7. Also, the heat collector 1 on the left
A portion of the rubber sheet 8 around the hole 10 is brought into close contact with the outer peripheral surface of the duct 12 so as to be bent to the left (see FIG. 3b). Finally, connect both ends of the duct 12 to the case peripheral wall 3 of the left and right heat collectors 1, respectively.
It is fixed using an L-shaped fixture 13. In this way, the two solar heat collectors 1 for air heating are connected in communication by the duct 12.

In order to fix both ends of the duct 12 to the left and right heat collectors 1, a means as shown in FIG. 4 may be used. That is, both upper and lower duct fixing walls 14 and 15 extending over the entire length of one side of the case peripheral wall 3 are integrally integrated with the upper and lower edges of the duct connection port 7 in the case peripheral wall 3 of the heat collector 1 in an outwardly projecting manner. Please set it as follows. And both upper and lower duct fixing walls 14,1
Screws 1 passing through 5 from the top and bottom respectively
6 into the duct 12, the duct 1
Both ends of 2 are fixed.

FIG. 5 shows another embodiment of this invention.

In Fig. 5, air heating solar heat collector 21
Both inner and outer rubber sheets 22 and 23 are attached to both the inner and outer surfaces of the case peripheral wall 3 to block the duct connection port 7,
Holes 24 and 25 smaller than the outer peripheral edge of the end portion of the duct 12 are bored in both the inner and outer rubber sheets 22 and 23, respectively. Hole 2 in inner rubber sheet 22
4 is curved inward.
Further, the portion of the outer rubber sheet 23 surrounding the hole 25 is curved outward. When such solar heat collectors 21 for air heating are connected in a continuous manner through the duct 12, as shown by the chain line in FIG. The portions of the rubber sheet 23 surrounding the holes 25 are bent further outward and are brought into close contact with the outer circumferential surface of the duct 12. Therefore, the sealing performance at the duct connection port 7 is further improved.

In the above two embodiments, the rubber sheet is attached only to the inner surface of the case circumferential wall and to both the inner and outer surfaces, but it is of course possible to attach it only to the outer surface of the case circumferential wall.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of this invention, with Figure 1 being a partially cutaway perspective view, Figure 2 being an enlarged sectional view taken along the - line in Figure 1, and Figure 3 being a 2 Fig. 4 is a diagram showing a modification of the method of fixing the duct to the heat collector, and Fig. 5 is a vertical sectional view showing another embodiment of this invention. It is. 1,21...Solar heat collector for air heating, 2...
Case, 3... Case peripheral wall, 7... Duct connection port, 8, 22, 23... Rubber sheet (flexible sheet), 10, 24, 25... Hole, 12... Duct.

Claims (1)

[Scope of utility model registration request] The whole is made up of a case 2, and a duct connection port 7 that is slightly larger than the outer peripheral edge of the end of the duct 12 is provided in the case peripheral wall 3, and the duct connection port 7 is closed on at least one of the inner and outer surfaces of the case peripheral wall 3. Flexible sheets 8, 22, 23 are attached, and holes 10, 2 smaller than the duct connection port 7 and the outer peripheral edge of the end of the duct 12 are formed in the flexible sheets 8, 22, 23.
A solar collector for air heating with holes 4 and 25.