JP2979301B2 - Heat collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a heat exchanger,
Related to heat collector.

[0002]

2. Description of the Related Art Pumping type collectors are well known.
Such a pump-type heat collector mainly includes a cylindrical glass container or a metal container housed in a box, and the box opening is covered with a transparent plate. The box-type pumped collector is treated as a finished product including the above-described components for convenience of distribution. However, 200
Even a pumping type of about 1 liter has a considerable weight,
The handling is difficult for human workers. The product price is cheaper than natural circulation type solar thermal equipment,
The disadvantage is that it is vulnerable to freezing. Due to the inconvenience of using it as a preheating device in winter, it has not been widely used. Consumers are demanding cheaper and more convenient collectors.

[0003]

SUMMARY OF THE INVENTION A collector according to the present invention comprises:
The surface serves as a heat exchange surface that transmits heat to the heat medium liquid that receives and flows the solar heat, and is used by deforming the lower part, and has a heat insulating property for storing the heat medium liquid in the depression of the deformed portion. A flexible sheet material, which is located in the vicinity of the deformed and used portion of the flexible sheet material, one end of which is attached to the flexible sheet material, and the other when the heat medium liquid is stored and stored; And a heat insulating cover which is supported in a state where the end side of the liquid crystal floats above the liquid surface and forms a flow lower surface following the heat collecting surface.

[0004]

The heat collector having the above-described structure has a flow surface for the heat medium liquid,
It consists of a heat collection / heat exchange surface for solar heat, a pumping tank for the heat medium liquid, a heat insulation cover for the liquid surface of the stored heat medium liquid, and a heat insulation material at the bottom of the stored heat medium liquid. An inclined flow surface is formed on the surface that is continuous with the heat collecting surface to maintain a smooth flow of the heat medium liquid, and the heat collecting surface is substantially enlarged by the inclined surface.

[0005]

FIG. 2 shows an example of a heat collector according to the present invention. FIG. 1 shows a board-shaped heat collecting material 1 made of a flexible sheet material 2 provided with a heat insulating layer 3. The flexible sheet material 2 serves as a heat collecting surface for transmitting heat to a heat medium liquid whose surface receives solar heat, and a heat insulating layer 3 is arranged in contact with the back side of the heat collecting surface to form an integrated body. Forming a laminated structure. Heat collection material 1 constructed in this way
When the lower side is bent and deformed, the pumping tank 4 is formed.

[0006] The heat collecting material 1 is not limited only to those described above. For example, a lining layer (not shown) having excellent tensile strength can be interposed between the flexible sheet material 2 and the heat insulating layer 3.

[0007] The flexible sheet material 2 includes a heat insulating cover 5.
It has. One end 5a of the heat retaining cover 5 is connected to the flexible sheet material 2, and the other end is a free end. The heat retaining cover is supported in a floating state on the stored heat medium liquid, and forms a heat insulating layer covering the surface of the stored heat medium liquid.

When the lower part of the heat collecting material 1 is bent into a curved state, it is convenient to make a cut 6 in the heat insulating layer 4.

In the heat collector shown in FIG. 2, a support 8 is erected using a support 7 such as a foam concrete block.
A configuration is adopted in which the flexible sheet material 2 (or the lining layer) is supported near the upper end of the column and the load of the pumping tank 4 is supported by the block 7. In the illustrated example, the support columns 8 are vertically erected, but are not particularly limited thereto, and can be installed at a desired angle.

The heat medium liquid is supplied to the heat receiving surface of the flexible sheet material 2 by using a heat medium liquid supply means 9 such as a spray means or a perforated nozzle pipe / rectifier plate. The supplied heat medium flows down along the heat receiving surface, flows down along the inclined surface of the heat retaining cover, and flows into the pumping tank 4. The heat medium liquid stored in the pumping tank is supplied again to the heat collecting surface of the flexible sheet material 2 via a circulation pump (not shown) as necessary, and thus the heat medium circulation operation of the heat medium liquid is performed. Done.

[0011] The heat collector according to the present invention is not limited only to those described above. For example, a step is likely to be formed at the joint between the flexible sheet material 2 and one end 5a of the heat retaining cover 5 to prevent the heat medium liquid from flowing down. When a level difference occurs, the flowing heat medium liquid is undesirably blocked by the level difference and flows laterally. In such an example, while the step is reduced by using a knurling pressure roll, it is also possible to form, for example, an uneven surface (not shown) extending vertically in parallel at the joint. The uneven surface serves as a guide path means for the heat medium liquid for guiding the heat medium liquid. Other examples of the guide path means include a method in which the vertical projection is formed using a heat-forming roller, or a ridge-shaped projection formed in parallel using a rubber material. These guide path means are located across the step, and can prevent the heat medium liquid from laterally moving along the step and can guide the heat medium liquid downward.

[0012] As an example of the guide path means, it is also possible to install a liquid absorbing strip by straddling a step.

In the flexible sheet material 2, a large number of reference lines can be arranged in parallel for the purpose of regulating the flowing direction of the heat medium liquid flowing down the surface. Such a normal line can be attached to the sheet material by, for example, silk screen printing.

The heat insulating cover can be composed of a flexible sheet layer 10 located on the front side and a foam layer 11 located on the back side.

[0015]

The present invention has a very simple structure and is easy to construct.
A heat collector having a desired storage capacity with a necessary heat collecting area can be configured. The overall structure of the heat collector is flexible, free from breakage due to freezing, and can withstand external loads such as wind pressure sufficiently, making it extremely inexpensive and easy to manage. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a heat collector.

FIG. 2 is a schematic longitudinal sectional view showing an example of a heat collector configured using the heat collector shown in FIG.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Heat-collecting material 2 Flexible sheet cloth 3 Heat insulation layer 4 Pumping tank 5 Insulation cover 7 Support body 8 Post 9 Heat medium supply means

Claims (2)

(57) [Claims] 1. A heat insulating surface whose surface serves as a heat exchange surface for transferring heat to a heat medium liquid that receives and flows down solar heat, and is used by deforming a lower portion thereof, and stores the heat medium liquid in a depression of the deformed portion. A flexible sheet material having the property, located near the deformed and used portion of the flexible sheet material, one end is attached to the flexible sheet material,
A heat collector having a heat retaining cover which is supported in a state where the other end side is floating above the liquid surface when the heat medium liquid is stored and forms a flow lower surface following the heat collecting surface. 2. The heat collector according to claim 1, wherein
At the place where the flexible sheet fabric and the heat insulating cover are attached,
A heat collector provided with a heating medium liquid guide path means for guiding the heating medium liquid substantially along the original flowing direction of the heating medium liquid across the step formed at the attachment location.