JP2004037063A - Solar energy gathering device and water heater - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar energy gathering device capable of obtaining excellent heat absorbing efficiency and excellent heat conductive efficiency without generating a large heat loss due to water of scaling, and to provide a water heater using this solar energy gathering device. <P>SOLUTION: This solar energy gathering device is provided with a housing 3, which is formed with an opening part 3 to access a housing space 33 by dividing the housing space 33. The housing 3 has transparent side walls. A heat conductor 4 has a heat absorbing part 412 arranged in the housing space 33 of the housing 3 and a heat radiating part 413 extended from the housing space 33 through the opening part 31. The heat conductor 4 is formed with a sealed chamber 411 inside thereof and provided with a hollow heat conductive member 41 formed with a heat conductive layer 42 in the sealed chamber 411. The heat absorbing part 412 absorbs the solar energy obtained by irradiation of the housing 3 with the sunlight, and transmits the solar energy to the heat radiating part 413. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a solar energy collecting device, and more particularly to a solar energy collecting device provided with a heat conductor and a water heating device using the solar energy collecting device.
[0002]
[Prior art]
In FIG. 1, a bottom frame 11, a water tank 12 mounted on one side of the bottom frame 11 and having a water inlet 121 and a water outlet 122, and an inclination between the water tank 12 and the other side of the bottom frame 11. 1 shows a conventional water heating apparatus 1 provided with a plurality of heat absorbing pipes 13 arranged in such a manner. Each heat absorption pipe 13 has a connection end 131 connected to the water tank 12 so as to be capable of fluid communication, and a closed end 132 disposed on the opposite side of the connection end 131 and lower than the connection end 131. Have. When the heat absorbing pipe 13 is irradiated with sunlight (indicated by the arrow in FIG. 2), the specific gravity of the low-temperature water is higher than the specific gravity of the high-temperature water, so that the low-temperature water flows downward and the high-temperature water flows upward. Thermal circulation occurs.
[0003]
[Problems to be solved by the invention]
The conventional water heating device 1 has the following disadvantages.
[0004]
1. Since each heat absorbing pipe 13 has a curved heat absorbing surface that reflects sunlight, heat absorbing efficiency is poor.
[0005]
2. Since the low-temperature water and the high-temperature water flow in the pipes 13 in opposite directions, heat loss during heat conduction may be large.
[0006]
3. Since scale is easily generated in the heat absorption pipe 13, periodic cleaning and maintenance are required to maintain good heat conduction efficiency.
[0007]
[Means for Solving the Problems]
Accordingly, an object of the present invention is to provide a solar energy collecting device provided with a heat conductor and a water heating device using the solar energy collecting device.
[0008]
According to one aspect of the present invention, a housing having a transparent side wall, defining a receiving space, having an opening for accessing the receiving space, and disposed in the receiving space of the housing. A heat conductor having a heat absorbing portion and a heat radiating portion extending from the housing space through the opening, wherein the heat conductor defines a closed chamber therein and includes a heat conductor. A hollow heat conducting member forming a heat conducting layer in the room, wherein the heat absorbing portion absorbs solar energy when the housing is irradiated with sunlight and transmits the solar energy to the heat emitting portion. A solar energy collection device characterized by the following is proposed.
[0009]
According to another feature of the present invention, there is provided a water tank having an inlet and an outlet, and a solar energy collecting device, the solar energy collecting device having a transparent side wall and defining a receiving space, A housing having an opening for accessing the accommodation space; a heat absorbing portion disposed in the accommodation space of the housing; and a heat radiation portion extending from the accommodation space through the opening. A heat conductor, wherein the heat conductor includes a hollow heat conductive member defining a closed chamber therein and forming a heat conductive layer in the chamber, and the heat absorbing portion includes A water heating device is proposed which absorbs solar energy when illuminated by sunlight and transmits the solar energy to the heat radiating portion to heat water in the aquarium.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 3 shows a first preferred embodiment of the water heating device 6 of the present invention, which comprises a water tank 6 and a solar energy collecting device.
[0011]
The water tank 6 is attached to a support frame and has a water inlet 61 and a water outlet 62.
[0012]
Referring to FIGS. 4 and 5 together, the solar energy collecting device includes a housing 3 and a heat conductor 4. The housing 3 has an inner surface 32 defining a storage space 33, and the housing 3 has an opening 31 for accessing the storage space 33. In this embodiment, the rectangular housing 3 is integrally formed of a transparent material such as tempered glass or heat-resistant transparent plastic. The heat conductor 4 extends from the heat absorbing portion 412 disposed in the housing space 33 of the housing 3 to the outside of the housing space 33 as shown in FIG. And a heat radiating portion 413 that enters the radiating portion. The heat conductor 4 includes a hollow heat conductive member 41 which is a rectangular member, defines a closed chamber 411 inside the member 41, and forms a heat conductive layer 42 in the chamber 411 (see FIG. 5). ). The heat conducting layer 42 is selected from the group consisting of sodium peroxide, sodium oxide, beryllium oxide, dimanganese trioxide, aluminum dichromate, calcium dichromate, boron oxide, dichromate radical, and combinations thereof. At least one compound; cobalt (II) oxide, dimanganese trioxide, beryllium oxide, strontium chromate, strontium carbonate, rhodium oxide, cupric oxide, beta titanium, potassium bichromate, boron oxide, calcium dichromate, At least one compound selected from the group consisting of manganese dichromate, aluminum dichromate, dichromate radicals, and combinations thereof; or modified rhodium oxide, potassium dichromate, modified radium oxide, sodium dichromate , Silver dichromate, single crystal silicon, Of beryllium, strontium chromate, boron oxide, sodium peroxide, beta titanium, which shall consist of superconductor comprising dichromate acid metal salt, and at least one compound selected from the group consisting of. A lining of a superconductor functioning as the heat conductive layer 42 is formed on the inner surface 410 of the heat conductive member 41 by a known technique (see FIG. 2).
[0013]
Further, a heat absorbing film 5 for improving the heat absorbing efficiency of the heat conductor 4 is further formed on the outer surface 4121 of the heat absorbing portion 412 of the heat conductor 4. The heat absorbing film 5 is preferably formed by magnetically controlled sputtering.
[0014]
The heat absorbing portion 412 of the heat conductor 4 absorbs solar energy when the housing 3 is irradiated with sunlight, and transfers the solar energy to the heat emitting portion 413 to heat the water in the water tank 6.
[0015]
FIGS. 6 and 7 show a solar energy collecting device according to a second preferred embodiment of the water heating device according to the present invention, which is a modification of the first preferred embodiment. Unlike the previous embodiment, the housing 3 ′ has a bottom body 7 and a transparent cover 8 attached to the bottom body 7. An accommodation space 73 is defined by the bottom body 7 and the transparent cover 8. The transparent cover 8 is made of tempered glass or heat-resistant transparent plastic.
[0016]
Although the present invention has been described with reference to the most practical and preferred embodiments, the present invention is not intended to be limited to the disclosed embodiments, and is not limited to the above described modifications and equivalent configurations. It is to be understood that all inclusions are intended to include the various features that fall within the broadest construed gist and scope.
[0017]
【The invention's effect】
The present invention has the following advantages.
[0018]
1. Since the entire region of the outer surface of the heat absorbing portion of the hollow heat conducting member functions as a heat absorbing region, excellent heat absorption efficiency is provided.
[0019]
2. Because of the presence of the heat conductor, the solar energy absorbed in the heat absorbing portion is transmitted to the heat radiating portion with high efficiency, so that the heat loss generally seen in the above-mentioned prior art can be reduced.
[0020]
3. Since the solar energy collecting device of the present invention uses a heat conductor instead of water as a heat transfer medium, the above-mentioned problem of water scale in the prior art is avoided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a conventional water heating device.
FIG. 2 is a schematic sectional view showing a heat absorption pipe of the conventional water heating device, taken along line II-II of FIG.
FIG. 3 is a perspective view showing a first preferred embodiment of a water heating device according to the present invention.
FIG. 4 is an exploded perspective view showing the solar energy collecting device of the first preferred embodiment.
FIG. 5 is a schematic sectional view showing a solar energy collecting device according to a first preferred embodiment;
FIG. 6 is a perspective view showing a solar energy collecting device of a second preferred embodiment of the water heating device according to the present invention.
FIG. 7 is a schematic sectional view showing a solar energy collecting device according to a second preferred embodiment;
[Explanation of symbols]
3, 3 'housing 4 heat conductor 5 heat absorption film 6 water tank 61 water inlet 62 water outlet 7 bottom body 8 transparent cover 33 accommodation space 41 heat conduction member 411 closed room 412 heat absorption part 4121 outer surface 413 heat radiation part 42 heat conduction layer

Claims (12)

A housing (3) having a transparent side wall, defining a receiving space (33) and having an opening (31) for accessing said receiving space (33);
A heat absorbing portion (412) disposed in the housing space (33) of the housing (3) and a heat radiating portion (413) extending from the housing space (33) through the opening (31). And a heat conductor (4) having
The heat conductor (4) includes a hollow heat conductive member (41) defining a closed chamber (411) therein and forming a heat conductive layer (42) in the chamber (411).
The heat absorbing part (412) absorbs solar energy when the housing (3) is irradiated with sunlight, and transmits the solar energy to the heat radiating part (413). Collection device. The solar energy collecting device according to claim 1, wherein the housing (3) is integrally formed of a transparent material. 2. The housing (3 ') according to claim 1, characterized in that it comprises a bottom body (7) and a transparent cover (8) attached to the bottom body (7) and acting as the transparent side wall. A solar energy collecting device as described. The solar energy collecting device according to claim 1, wherein the housing (3) is a rectangular housing, and the heat conducting member (41) is a rectangular member. The solar energy collecting device according to claim 1, characterized in that the heat absorbing part (412) of the heat conductor (4) has an outer surface (4121) on which a heat absorbing film (5) is formed. The solar energy collecting device according to claim 5, wherein the heat absorbing film (5) is formed by sputtering. A water tank (6) having an inlet (61) and an outlet (62), and a solar energy collecting device;
This solar energy collection device
A housing (3) having a transparent side wall, defining a receiving space (33) and having an opening (31) for accessing said receiving space (33);
A heat absorbing portion (412) disposed in the housing space (33) of the housing (3) and a heat radiating portion (413) extending from the housing space (33) through the opening (31). And a heat conductor (4) having
The heat conductor (4) includes a hollow heat conductive member (41) defining a closed chamber (411) therein and forming a heat conductive layer (42) in the chamber (411).
The heat absorbing portion (412) absorbs solar energy when the housing (3) is illuminated with sunlight, and transfers the solar energy to the heat radiating portion to heat water in the water tank (6). (413) The water heating device, wherein the water is transmitted to the device. The water heating device according to claim 7, wherein the housing (3) is integrally formed of a transparent material. The housing (3 ') according to claim 7, characterized in that it comprises a bottom body (7) and a transparent cover (8) attached to the bottom body (7) and acting as the transparent side wall. A water heating device as described. The water heating device according to claim 7, wherein the housing (3) is a rectangular housing, and the heat conducting member (41) is a rectangular member. The water heating device according to claim 7, characterized in that the heat absorbing part (412) of the heat conductor (4) has an outer surface (4121) on which a heat absorbing film (5) is formed. The water heating device according to claim 11, wherein the heat absorbing film (5) is formed by sputtering.

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