WO2009044933A1

WO2009044933A1 - Solar heat reflection collecting device

Info

Publication number: WO2009044933A1
Application number: PCT/JP2008/068400
Authority: WO
Inventors: Kenji Kugemoto
Original assignee: Kenji Kugemoto
Priority date: 2007-10-04
Filing date: 2008-10-02
Publication date: 2009-04-09
Also published as: JP2009092362A

Abstract

A solar heat energy collecting method is used to store solar heat by circulating water or an antifreezing fluid through, e.g., a solar water heater installed on a roof or an outside wall of a building and storing the water or the antifreezing fluid in a hot water tank or the like. However, it cannot be said that solar heat energy collection is widely spread. Recently, solar generation has become popular and is effectively used in regions where the time when the sunlight is falling is sufficiently long. Meanwhile, solar generation is not much expected in regions where it is often cloudy or snowy. Solar generators using the sunlight are installed on roofs and outside walls of buildings, but are not widely spread. Consequently, techniques of effectively using roofs, outside walls, road sidewalls, soundproof walls, and so forth on which the sunlight falls and making the most of the solar heat energy have been required. A large amount of heat energy can be collected by a solar heat reflection collecting method and a solar heat reflection collecting device.

Description

68400

Solar thermal reflective heat collector Technical Field ·

The present invention relates to an apparatus for collecting and collecting solar heat, and relates to a solar heat reflective heat collecting apparatus. Background art

Solar thermal energy is expected throughout the year even in cloudy and sunny weather. This solar thermal energy collection technology includes solar water heaters installed on the roofs and exterior walls of buildings. As a heat collection method, solar heat energy is collected by a solar water heater installed on the roof, and water, antifreeze, etc. are circulated by driving an electric pump, etc., and heated as hot water in a hot water storage tank. Is storing heat.

In addition, solar condensing that uses solar cells or sunlight, converges sunlight with a large number of Fresnel lenses, and transmits the converged sunlight to other locations via optical cables. There is a transmission device.

Patent Document 1 Japanese Patent Application Laid-Open No. 1 1-1 0 8 4 6 6

Patent Document 2 Japanese Patent Application Laid-Open No. Sho 5 8-1 9 2 0 0 1 Disclosure of Invention

Problems to be solved by the invention

In the conventional solar water heater heat collection technology, the heat reflection of glass and the like that protects the surface has been improved, but the heat collection efficiency of the internal heat collection panel is not necessarily excellent. In particular, since the solar heat is applied to the sun, the solar heat is reflected by the heat collector, and a significant part of the reflected heat is dissipated into the atmosphere, so the solar heat efficiency is not sufficient. In addition, the installation location is used only on the roof surface of the building or on a part of the IS surface. The solar water heater's heat collection method uses water and antifreeze to circulate and store heat, but on the other hand, the solar water heater's temperature drops during the night when solar heat is not expected. The temperature stored in the hot water storage tank etc. becomes higher, and heat is dissipated toward the solar water heater due to heat conduction. Also, solar cells have poor conversion efficiency when converting solar thermal energy into electricity, and equipment for capturing this inefficiency is expensive. In addition, for optical cables, only solar energy is used.

However, in the case of conventional technology, particularly solar water heaters, water and antifreeze are circulated and external power is required, and solar heat is not used for the following purposes.

The first is not a method of collecting solar heat and storing it, and heating the hot water storage tank with that heat. The second is the supply of heat to the solar heat storage transfer device for supplying heat to the underground heat storage device (Japanese Patent Application No. 2 0 0 6— 2 2 8 4 3 4) developed by the present inventor. It is not a means. The present invention is to solve the above-described problems, and is to effectively use the light and heat of the sun. The sunlight and heat once incident are reflected in the device a plurality of times. In addition, once incident sunlight and heat are reflected without reflecting in the incident direction, heat is collected to the back of the equipment, and heat energy is radiated to the incident side outside the equipment. However, it can be used as a heat source for storing the concentrated heat energy to heat the hot water storage tank or as a heat source for various equipment, and it can be used for sloping walls on the road side walls. Then, it collects heat and supplies heat to the underground solar heat storage device.

Means for solving the problem

In a heat-insulated storage box fitted with a front heat insulation cover on the front, multiple layers of sheet heat collecting plates with multiple heat collecting chambers that receive sunlight and receive heat and reflect are built in. The heat collected by the hot plate is stored in a single heat storage chamber via each heat conduction section, and is connected to external equipment with a heat transfer pipe connected to the heat storage chamber for heat utilization.

The invention's effect

According to the planar heat collecting plate described above as a method of collecting solar thermal energy, even if the shape of the reflective heat collecting device is flat, concave or convex depending on the installation location, it is incident from sunrise to sunset. Heat can be collected while the angle is fixed without correcting or tracking. In addition, the solar heat radiated by the sun is collected by a planar heat collecting plate (reflecting plate) by repeating the reflection of the solar radiation without loss, and is not retro-reflected in the solar radiation direction. Photothermal heat can be used efficiently, allowing higher temperature heat collection. The collected heat can be used as various heat sources such as hot water storage tanks by heat transfer pipes such as heat-insulated pipes. As a result, the range of solar energy use will increase.

Since the heat collected by the planar heat collecting plate is stored in the heat storage chamber, it is possible to stably supply heat to external devices, and heat cannot be collected by the planar heat collecting plate in the shade or at night. In addition, the hot water storage tank tries to reverse the heat supplied as the heat source for various devices in the direction of the planar heat collecting plate, but there is no heat dissipation due to the reverse flow because the heat storage chamber is provided.

Brief Description of Drawings

FIG. 1 is a front view of the device according to the present invention, and a part thereof is shown in cross section.

2 is a cross-sectional view taken along line AA in FIG.

Fig. 3 is an explanatory diagram of the incidence and reflection of sunlight when it enters the front side of the planar heat collecting plate. Fig. 4 is an explanatory diagram of the incident and reflection conditions when sunlight enters the planar heat collecting plate.

FIG. 5 shows another embodiment of the apparatus of the present invention.

FIG. 6 shows an embodiment in which heat is supplied to external equipment by the apparatus of the present invention.

FIG. 7 shows another embodiment in which heat is supplied to external equipment by the apparatus of the present invention.

Explanation of symbols

1 Insulated storage box

2 Planar heat collecting plate

2 A, 2 B, 2 C, 2 D, 2 E, 2 F planar heat collecting plate members

3 Front insulation cap ^ " 5 Heat conduction part

6 Thermal storage room

7 Insulation

8 Heat transfer pipe

32 sheet collector

32 A, 32 B, 32 C, 32D, 32 E, 32 F planar heat collecting plate members

BEST MODE FOR CARRYING OUT THE INVENTION

In order to receive more solar thermal energy, the device of the present invention can be installed and received by effectively using the roof, outer wall, road side wall, soundproof wall, etc. Heated heat is supplied to other equipment.

Example 1

FIG. 1 is a front view of an embodiment of the device according to the present invention. The front surface of the solar heat collecting device, that is, the sunlight incident side is not disturbed as much as possible, and the heat radiation from the inside. A front heat insulating cover (3) using a glass plate that can be stopped as much as possible, or a synthetic resin such as acrylic or polycarbonate with transparency, and a different size is provided inside. The opening height and thickness of the reflective heat collection chamber are arranged in multiple layers in order of increasing the front surface and decreasing toward the rear surface, and a planar heat collecting plate that spreads into a surface that collects incident solar heat (2) Into the heat insulating storage box (1). The heat of the surface heat collecting plate (2) is in contact with the upper part of the surface heat collecting plate (2) at the top inside the heat insulating storage box (1). A heat converging part (4) is provided to condense the heat and the heat conducting part (5) Via Solo B temple heat stockpile is provided thermal storage chamber (6).

The heat storage chamber (6) is located above the solar heat collector, and the heat conduction part (5) is spaced from the opposite side (with respect to the heat conduction part (5) in Fig. 1). The heat transfer pipe (8) such as a heat-insulated metal pipe or non-ferrous metal pipe is connected to the rear of the heat storage chamber (6), and the heat transfer pipe (8) is connected to the heat transfer pipe (8). The heat energy stored in the heat storage chamber (6) is transferred by heat by connecting a heat transfer pipe or external equipment with the same properties as in (1).

FIG. 1 is a front view of the device of the present invention, in which the heat insulating storage box (1) has a box shape and has a structure having heat insulating performance. The shape can be triangular, polygonal, circular, semi-circular as well as box shape.

In the direction in which solar heat is radiated, that is, in the right-hand direction in Fig. 2, there is a glass plate that allows solar heat to pass through, or a front insulation cover (3) made of synthetic resin such as acrylic or polycarbonate that has transparency. It is installed with the inside of the heat insulation storage box (1) sealed. A multilayer heat collecting plate (2) is provided inside the heat insulation storage box (1), and is fixedly mounted in the heat insulation storage box (1).

The planar heat collecting plate (2) has the same external shape, and has the same thickness and height as the internal shape (2A) (2B) (2C) (2D) (2E) (2 F) Each planar heat collecting plate member (2A to 2F) has a hexagonal Hucam structure, which is made of metal or non-reflective material that reflects sunlight and can receive heat. It is metallic, specifically made of aluminum or aluminum foil. Also, as shown in Fig. 4, the opening height of the reflective heat collecting chamber (U, V, W, X, Υ, Z) of the hexagonal honeycomb structure of each planar heat collecting plate member (2A to 2F) (HI, H2, H3, H4, H5, H6) are gradually reduced from HI to H6, while the thickness (Tl, Τ2, Τ3, Τ4, Τ5, Τ6) is also Τ1 ~ There is a gradual decrease as it goes to Τ6, and the planar heat collecting plate members (2Α, 2Β, 2C, 2D, 2E, 2F) are stacked in this order from the front thermal insulation cover (3) side.

A heat converging part (4) made of the same material as the planar heat collecting plate (2) is in close contact with the upper surface of the planar heat collecting plate (2). The heat conduction part (5) is in contact with the upper part of 4), and the box-shaped heat storage chamber (6) is in contact with the upper part of the heat conduction part (5). The heat conduction part (5) and the heat storage chamber (6) are also made of the same material as the planar heat collecting plate (2).

A heat transfer pipe (8) is connected to the heat storage chamber (6). The heat transfer pipe (8) protrudes outside the heat insulating storage box (1) for convenient connection with external equipment. ) It is covered with a heat insulating material (7) on the outside. In addition, the connection between the heat transfer pipe (8) and the heat insulating storage box (1) is also considered to be a heat sink.

In addition, the heat conduction part (5) in contact with the heat storage chamber (6) is arranged to be opposite to the heat transfer pipe (8) in order to secure a distance from the heat transfer pipe (8). The heat collected in the heat converging part (4) is stored in the heat storage chamber (6) via the heat conduction part (5). In addition, by disposing the heat conduction part (5) opposite to the heat transfer pipe (8), the heat storage chamber (6) is stored to full capacity, so the heat stored in the heat storage chamber (6) is heated. In order to stably supply the transfer pipe (8), at the same time, the heat converging section (6) is used to prevent heat from flowing back to the planar heat collecting plate (2) in the shade due to clouds with reduced solar radiation. (4) It is possible to prevent heat dissipation in the shade and at night by using the opposite direction that is not close to. In addition, heat storage material can be used inside to increase the heat storage capacity of the heat storage chamber (6).

Fig. 5 shows another embodiment of the planar heat collecting plate (2) in Fig. 1, and the planar heat collecting plate member (32A) (32 B) (32 C) (32D) (32 E) The shape of the reflection heat collection chamber (U, V, W, X, Y, Z) of (32F) is a planar heat collection plate (32) that has been changed from a hexagonal fly-comb shape to a square shape. Except for this shape, it is the same as that shown in FIG.

The solar heat reflection heat collecting device according to the present invention is installed above the ground, the front heat insulating cover (3) side is the side that receives solar radiation, and the heat transfer pipe (8) is on the upper side. In addition, the height of the sun and the angle of solar radiation change according to the four seasons, so it can be moved according to the change.

Next, the operation of the present invention will be described.

Fig. 3 and Fig. 4 show the solar heat radiated on the solar heat non-reflecting heat collecting apparatus of the present invention. The front heat collecting par (3) is passed through the planar heat collecting plate (2). The solar heat (a) is shown by two light traces for convenience, showing the solar heat radiated in the reflection heat collection chamber (U) of the planar ripening plate member (2 A).

The solar heat (a) is transmitted through the front heat insulation cover (3), radiates to the lower surface of the reflective heat collection chamber (U) with incident angle shining, and is reflected at the reflection angle / 3. At this time, the incident point (P 1) and the reflection point (P 2) reflect the solar thermal energy and receive heat by radiation, and if solar heat continues to be radiated continuously, the reflected heat collection chamber (U ) After being heated and stored, heat is transferred to the reflective heat collecting chamber (U) located on the upper floor as time passes, and finally the heat converging section ( 4) Go to heat focused.

The planar heat collecting plate (2) of the present invention is laminated in the order of the planar heat collecting plate members (2A) (2B) (2C) (2D) (2E) (2F) as shown in FIG. Therefore, solar heat radiated into the reflective heat collecting chamber (U) of the planar heat collecting plate member (2A) is incident on the reflective heat collecting chamber (V) of the planar heat collecting plate member (2B) and reflected. At point (P 2), the solar heat energy is received by radiation, and this heat reception is conducted to the reflection heat collecting chamber (V) located on the upper floor as time passes. Like the member (2A), the heat is focused on the heat focusing section (4).

Similarly, as shown in FIG. 4, the planar heat collecting plate member (2B) is followed by the planar heat collecting plate member (2

C) Repeating the incident point (P 3) or reflection point (P4) to the planar heat collecting plate member (2D), the planar heat collecting plate member (2E), and the planar heat collecting plate member (2F) The heat is focused on the heat focusing part (4). At this time, the thermal energy radiated to the planar heat collecting plate member (2A) is attenuated when reaching the planar heat collecting plate member (2F).

Thus, the heat energy collected by the planar heat collecting plate member (2 A) (2B) (2C) (2D) (2E) (2F) is conducted to the heat converging section (4), and The heat is stored in the heat storage chamber (6) through the heat conduction section (5) installed at the top of the converging section (4).

Therefore, the heat energy stored in the heat storage chamber (6) is introduced into the heat transfer pipe (8) covered with the heat insulating material (7) without any heat loss, and is transferred to the heat transfer pipe (8). It can be used as a heat source for various devices by connecting devices.

Fig. 5 shows that the planar heat collecting plate (2) in Fig. 1 is replaced with a planar heat collecting plate (32) with another shape, and a hexagonal planar heat collecting plate member (2A) ( 2B) (2C) (2D) (2E) (3 F) instead of a square planar heat collecting plate member (32 A) (32B) (32 C) (32

D) (32E) (32F) The solar heat collection and storage action uses the same phenomenon as in Figs.

Here, the planar heat collecting plate (2) shown in Fig. 2 was configured in multiple layers as shown in the planar heat collecting plate member (2A) (2B) (2C) (2D) (2E) (2F) The reason for this is that if only the planar heat collecting plate member (2A) is used alone and the planar heat collecting plate member (2A) has a thickness T1 increased to T, then the planar heat collecting plate (2) In the case of solar light, the sun's solar heat is regularly reflected and the reflected light and heat reach the back, but in this state, the number of reflections is small, so a considerable amount of light and heat energy is behind the insulated storage box. Because it reaches the rear wall of (1), solar heat is reflected toward the front surface in the incident direction by this heat insulating storage box (1) V, and again passes through the front thermal insulation bar (3). It is emitted outside the box on the incident side and solar heat cannot be collected effectively.

In order to prevent solar heat from being radiated out of the box by this reflection and transmission, each of the planar heat collecting plate members (2A) (2B) (2C) (2D) (2E) (2F) Reflection heat collection chambers (U, V, W, X, Υ, Z) have thicknesses T1 to T6, heights of Η1 to Η6, and a slight reduction, so that solar heat After the incident, the incident and reflection are repeated until the planar heat collecting plate member (2 F) located at the rear reaches each reflection heat collecting chamber (U, V, W, X, Υ, Ζ) is incident, Since the heat received during reflection will receive considerable heat energy, the heat energy received by the planar heat collecting plate member (2Α) (2Β) (2C) (2D) (2Ε) (2F) Increases heat collection effect. Therefore, each solar heat reaching the planar heat collecting plate member (2F) Since the energy is attenuated, there is almost no reflection toward the front, which is the incident direction, and it is almost non-reflective, so the solar projection energy is completely planar heat collecting plate member (2A) (2B) (2C) (2D) (2E) (2 F) heat is collected by heat convection and the collected energy is heated by the heat converging part (4) by heat conduction.

The thermal energy heated by the heat converging section (4) is stored in the heat storage chamber (6) through the heat conduction section (5) by heat convection. At this time, since the heat insulating storage box (1) has a heat insulating structure, the heat storage energy in the heat storage chamber (6) is retained. In addition, since the heat transfer pipe (8) and the heat conduction section (5) are spaced apart from the heat storage chamber (6), the heat supply and the heat outlet are kept away from each other. Prevents backflow of heat in the shade and at night.

FIG. 6 shows an embodiment in which heat is supplied to a hot water storage tank using the present invention. Figure 7 shows that the present invention is applied to the upper part of the solar heat storage transfer device used when supplying auxiliary heat to the solar heat underground heat storage device invented by the applicant for melting snow on the road. An example of using and supplying heat is shown.

Claims

7 Scope of request

1. Attach the front heat insulation cover (3) to the front, and the inside of the heat-insulating storage box (1) that has overall heat insulation performance and has a box shape. A plurality of reflective heat collecting chambers (U, V, W, X, Y, Z) that repeat, and the reflected heat collecting chambers (U, V, W, X, Y, Z) The opening height and thickness of the room has a built-in planar heat collecting plate (2) that gradually decreases from the direction of sunlight to the rear, and the planar heat collecting plate (2) A heat converging part (4) that collects heat in the plurality of reflective heat collecting chambers (U, V, W, X, Y, Z) is disposed in contact with the heat collecting part (4). Heat, heat conduction part

(5) A solar thermal reflection heat collecting apparatus characterized by storing heat in the heat storage chamber (6).

2. The heat conduction part (5) is in contact with the end of the heat converging part (4), and is in contact with the heat storage chamber (6) at a position opposite to the heat transfer pipe (8). The solar heat reflecting heat collecting apparatus according to claim 1, wherein the solar heat reflecting heat collecting apparatus is provided.

3. The solar thermal reflection collector according to claim 1, wherein the plurality of reflective heat collecting chambers (U, V, W, X, Y, Ζ) of the planar heat collecting plate (2) are hexagonal. .

4. The solar heat reflecting collector according to claim 1, wherein the plurality of reflecting heat collecting chambers (U, V, W, X, Υ, Ζ) of the planar heat collecting plate (2) are formed in a quadrangular shape.

5. The solar heat generator according to claim 1, wherein the heat transfer pipe (8) covered with the heat insulating material (7) is connected to the heat storage chamber (6) and arranged outside the heat insulating storage box (1). Reflective heat collector.