JPH08303875A - Solar heat collecting apparatus - Google Patents

Abstract

PURPOSE: To provide a solar heat collecting apparatus which enables utilizing of a space in shadow usually on the north side of a building. CONSTITUTION: This solar heat collecting apparatus has a sunlight collecting device 5 provided at an upper part of a building 1 and a solar heat collector comprising a heat collecting plate part B provided along an external wall 4 of the building below the sunlight collecting device 5 and a storage tank 9 and sunlight collected by the sunlight collecting device 5 is made to illuminate the heat collecting plate part 8 of the solar heat collector to obtain hot water from the solar heat collector device 10. It should be noted that variations of the apparatus are considerable. For example, a reflection mirror is provided on the outgoing side of the sunlight collecting device 5 and the heat collecting plate part of the solar heat collector so structured as to separate the heat collecting plate part and the storage tank is provided along an external wall 4 of the building 1. The sunlight collected by the sunlight collecting device 5 is made to illuminate the heat collecting plate part by the reflection mirror.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a solar heat collecting apparatus for obtaining hot water by using the sunlight rays that are taken by the sunlight collecting apparatus.

[0002]

2. Description of the Related Art A conventional solar heat collector is shown in FIG.
It was configured as shown in (A) and (B).

Here, FIG. 5 (A) is a vertical sectional front view of a main portion showing a roof portion on which a conventional solar heat collector is installed.

In the figure, 11 is the roof of the building and 12 is the outer wall of the building. Reference numeral 13 denotes a solar heat collector arranged on the roof 11, and a storage tank (not shown) for storing circulating hot water attached to the solar heat collector 13 is also the roof 1
It is assumed that it is installed on 1.

Incidentally, FIG. 2B is an enlarged vertical sectional view of the solar heat collector 13 shown in FIG. 1A, excluding the storage tank.

In FIG. 1B, reference numeral 14 is a heat converter,
Reference numeral 5 denotes a heat collecting plate portion, and a heat pipe 16 arranged in communication with the heat converter 14 is built in the heat collecting plate portion 15.

When the heat collecting plate 15 is irradiated with sunlight, the working liquid enclosed in the heat pipe 16 is heated and evaporated, and the pressure difference between the evaporation part and the condensation part causes vapor to reach the condensation part. In order to move and radiate latent heat, the heat converter 14 uses the solar heat transferred by the phase change of the working fluid.
The water circulating inside was changed to warm water.

Since the conventional solar heat collector has the above-mentioned structure, it has been installed on the roof on which the sun shines well or on the south side of the building where the sun easily enters.

[0009]

Since the conventional solar heat collecting apparatus is constructed as described above, it has the following problems. (1) If the heat collecting plate of the solar heat collector is directly connected to the storage tank, the total weight of the solar heat collector is large,
It took a long time to install it on the roof of the building. (2) Also, there is a type in which the heat collecting plate of the solar heat collector and the storage tank are separated and the storage tank is placed outside the building or inside the building, but in this case, the flow path becomes long. Therefore, the circulating water must be circulated by a large-capacity pump, which is a problem in terms of energy saving. (3) In addition, there is also one that uses an efficient vacuum type heat collector, but this also has a large weight, and in this case also, the work of installing it on the roof of the building took a long time.

The present invention has the above-mentioned problems (problems) of the conventional ones.
It is an object of the present invention to provide a solar heat collector that solves the above problem.

[0011]

In order to solve the above-mentioned problems, the solar heat collecting apparatus of the present invention is provided in a place where the direct sunlight of the sun hits above a place where the building is normally shaded. A solar heat collecting device, a solar heat collector consisting of a heat collecting plate portion and a storage tank provided along the outer wall of the building below the solar light collecting device are provided, and the sunlight collected by the solar light collecting device is described above. The heat collecting plate of the solar heat collector is irradiated, and hot water is obtained from the solar heat collector.

Further, the solar light collecting device provided at the above-mentioned location and the light refracting means such as a reflecting mirror or prism provided on the emission side of the solar light collecting device are provided, and the heat collecting plate portion and the storage tank are separated. The heat collecting plate portion of the solar heat collector having the structure is provided on the outer wall of the building, and the storage tank is provided on the ground along the outer wall of the building, and the sunlight collected from the sunlight collecting device is subjected to the light refraction. It may be configured such that the water is refracted by the means to irradiate the heat collecting plate portion of the solar heat collector and hot water is obtained by the solar heat collector.

In this case, in the solar heat collector, a pipe for circulating hot water arranged on the heat collecting plate portion is communicated with the inside of the storage tank, and the water enclosed in the pipe is circulated by such a route. By heating the water passing through the pipe built in the heat collecting plate portion by the irradiation of the sun rays, the heat quantity of the hot water circulating in the pipe which is heated to be hot water is used. Then, the water returned to the storage tank may be heated to be hot water.

Further, in the solar heat collector, a first header serving as a condensing portion of the heat pipe and a second header serving as an evaporating portion of the heat pipe are arranged in the heat collecting plate portion and the storage tank, respectively. These headers are communicated with each other through pipes, and water enclosed in these pipes is circulated so that water passing through the pipes contained in the heat collecting plate portion of these pipes is , The heat of the first header of the heat pipe is heated by the irradiation of the sun rays to become hot water, and when the water passes through the second header, the heat stored in the storage tank is used to dissipate the water stored in the storage tank. You may comprise so that it may be heated and made into warm water.

Further, in place of this, the solar heat collector is provided with an evaporator and a heat-collecting plate and a storage tank to which heat of a loop-shaped heat pipe (hereinafter referred to as a special heat pipe) is applied. Arrange the condensing part that is the part that emits heat, respectively, the energy when the solar heat collected by irradiating the heat collecting plate part with solar rays is released as latent heat from the condensing part of the special heat pipe. It is desirable that the water stored in the storage tank is heated to make hot water by utilizing it.

Further, the sunlight collecting device includes at least one or more rotatable flat plate prisms and a control means such as a microcomputer for controlling the rotation of the flat plate prisms, and the prism of the flat plate prisms is controlled by the control device. It is desirable that the angle be controlled to an appropriate prism angle in accordance with the operation of the sun so that the light beam is always emitted in a fixed direction on the emission side.

[0017]

In the solar heat collecting apparatus of the present invention, a solar light collecting device is provided in a place where the direct sunlight of the sun hits above a place where the building is normally shaded, and the heat collecting plate portion of the solar heat collector is provided. Is configured to be provided along the outer wall of the building below the solar lighting device, the weight of the roof of the building is not required unlike the conventional structure, and the installation work can be completed in a short time.

In this case, when a solar heat collector having a structure in which the heat collecting plate and the storage tank are separated is used and the heat collecting plate is provided along the outer wall of the building, Since the area of the heat collecting plate portion, that is, the irradiation area can be widened, the heat collecting efficiency of the solar rays can be increased as compared with the solar heat collector in which the heat collecting plate portion and the storage tank are directly connected.

As means for collecting and transferring heat of the solar heat, there are a structure using a water pipe and a structure using a heat pipe. In the latter structure, the heat collecting plate portion 8A collects heat. The heat collecting action of the solar heat generated and the heat transfer efficiency of transferring the heat to the water in the storage tank 9 are improved.

Further, if the heat collecting plate of the solar heat collector and the storage tank are arranged with an evaporating part and a condensing part of a special heat pipe (loop-shaped heat pipe) connected by piping, Compared with the structure that circulates water with a pipe, the electric power used for the pump is unnecessary and energy can be saved.

Further, in the above-mentioned sunlight collecting device, the prism angle of the flat plate prism is controlled to an appropriate prism angle corresponding to the operation of the sun by a control means such as a microcomputer for controlling the rotation of the built-in flat plate prism. By so doing, so that the light rays perpendicular to the heat collecting plate portion of the solar heat collector always hit, the efficiency of heat conversion of the solar heat in the solar heat collector is improved, so that the sunlight collecting light having such a function. If the device and the solar heat collector of the above-mentioned type are combined and installed in a building, it is possible to obtain hot water by collecting solar heat using the space in the north side portion of the building which has not been used so far.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to first and second embodiments shown in FIGS.

First Embodiment: FIG. 1 is a vertical sectional front view of a main part including a building showing a first embodiment of a solar heat collector of the present invention.

In the figure, 1 is a building to which the device of the present invention is applied, 2 is a roof portion thereof, and 4 is an outer wall. 5 is a sunlight collecting device, and this sunlight collecting device 5 is a flat plate prism 3
3 and a light duct 7 arranged along the outer wall 4 from the lower end of the daylighter 6, and usually the direct sunlight of the sun above the place where the building 1 is shaded. It is installed at a place on the north side of the building 1, for example, by a support 3 provided on the roof portion 2 of the building 1 as shown in the figure. The light duct 7 may be omitted, and the daylighting device 6 is configured, for example, as shown in FIG.

In FIG. 2, 31 is a support frame, 32 is a transparent hood, and 33a and 33b are flat plate prisms (see FIG. 1).
Is shown as one flat plate prism 33), 34
a to 34d are bearings, 35a1 and 35b1 are motors, 35a2 and 35b2 are gears, 36 is a power source, 3
7a to 37c are conducting wires, 38 is a motor drive circuit, 39
Is a central processing unit such as a microcomputer (hereinafter CPU)
It is).

The daylighting device 6 constructed as shown in FIG.
Is a motor 35a1, 3 so that the prism angles of the flat plate prisms 33a, 33b are always appropriate according to the operation of the sun by a program provided in the CPU 39.
5b1 is instructed to control the rotation of each prism 33a,
It is assumed that the sunlight emitted through 33b operates so as to become vertical parallel rays.

Therefore, since the prism angles of the flat plate prisms 33a and 33b are controlled according to the operation of the sun, the light emitted from the daylighting device 6 is always in a constant direction (vertical direction in the embodiment). Become.

Returning to FIG. 1 again, 10 is a solar heat collector arranged below the daylight collector 6 of the sunlight collecting device 5 along the outer wall 4, 8 is a heat collecting plate portion thereof, and 9 is a heat collecting plate portion thereof. A storage tank that communicates with the heat collecting plate portion 8 to store and circulate hot water, and the heat collecting plate portion 8 and the storage tank 9 constitute a solar heat collector 10. In addition, the solar heat collector 10
Sunlight vertically emitted from the daylight collector 6 is guided to the heat collecting plate 8 by the light duct 7 to be applied. In addition, W is the storage tank 9 of the solar heat collector 10.
Pipe H for supplying tap water to H is a pipe for supplying hot water heated by the solar heat collector 10 into the building.

In the solar heat collector of the present invention, as shown in the present embodiment, the respective parts of the structure may be arranged in a place which is usually in the shade, such as the north side of a building which has not been used so far. The feature of the configuration is that it is possible.

Next, first to third structural examples of the solar heat collector 10 will be described with reference to FIGS. 3 (A) to 3 (C).

FIG. 3A is an enlarged perspective view showing a first configuration example of the solar heat collector 10, and W is a pipe for supplying tap water to the storage tank 9 of the solar heat collector 10.
It is connected so that the tap water supplied from the tap water supply port (not shown) is supplied to the storage tank 9. H is a pipe for taking out hot water, which is used for supplying hot water in the storage tank 9 heated by the solar heat collector 10 on the principle described later to the hot water faucet (not shown) in the building and the hot water. Connected between faucets.

K1 and K2 are pipes, of which pipe K
1 is connected so as to communicate with the outlet side arranged below the storage tank 9, and connects with the inlet side of the pipe M1 in the heat collecting plate portion 8 via the pump P1, while the pipe K2 is connected. The outlet side of the pipe M1 in the hot plate portion 8 and the inlet side arranged above in the storage tank 9 are connected.

In the above structure, when the water supplied to the pipe M1 by the pump P1 through the pipe K1 passes through the pipe M1 built in the heat collecting plate section 8, the water is radiated by the sunlight collecting device 5. The sunlight is gradually heated to warm water, and the water thus gradually warmed to warm water is circulated again through the storage tank 9 through the pipe K2 to the pipe M1.

In this case, the initial warm water returned to the inside of the storage tank 9 through the pipe K2 is the storage tank 9
It is mixed with the water that was inside and cooled. However, since the hot water heated by the heat collecting plate portion 8 is sequentially introduced, the water in the storage tank 9 is warmed.

That is, the water which has been deprived of heat when passing through the storage tank 9 is also returned from the pipe K1 to the pipe M1 of the heat collecting plate portion 8, and when it reaches the pipe M1, the solar heat transmitted from the heat collecting plate portion 9 is transmitted. By repeating the operation of being heated again by the above, the water contained in the storage tank 9 is gradually heated to obtain hot water.

FIG. 3B shows a second configuration example of the solar heat collector. In FIG. 3B, the same components as those shown in FIG. 3A are designated by the same reference numerals. However, the description is omitted. The solar heat collector 10A of this configuration example is shown in FIG.
As shown in (B), the heat pipe 11 is provided in the heat collecting plate portion 8A.
The first header 11h1 which serves as the condensation part of a and the second header 1 which serves as the evaporation part of the heat pipe 11b
1h2 is configured to be arranged in the storage tank 9.

In this case, it is desirable that the heat pipe 11b is arranged in the lower right direction so that the header 11h2 is on the lower side as shown in the figure.

The pipe K3 is connected to the pipe K4 via the pipe KH1 which communicates (or adjoins) the first header 11h1, and the pipe K4 communicates (or adjoins) the second header 11h2. KH2 and a pump P2 are connected to the pipe K3 via the intermediate portion. In addition,
It is assumed that the heat pipes 11a and 11b are filled with a liquid made of a heat medium such as CFC.

In the present embodiment, when the heat collecting plate portion 8A is irradiated with sunlight, first, the heat medium enclosed in the header 11h1 of the heat pipe 11a is condensed and radiated by the latent heat, whereby the pipe K3 → KH1 → K4. The circulating water in the pipe is KH1
Is heated to hot water when passing through the storage tank 9
Since the heat medium in the second header 11h2 therein is evaporated, the heat medium is stored in the storage tank 9 by utilizing the heat radiation of the hot water passing through the pipe KH2 communicating with the second header 11h2 and the pipe K4 around it. The water is heated to warm water.

Although the temperature of the water in the pipe K3 is slightly lowered by heating the water stored in the storage tank 9, it is reheated by the first header 11h1 in the process of passing through the pipe KH1. During the circulation process, the temperature of the circulating water gradually rises.

Therefore, the water stored in the storage tank 9 is also gradually heated, and this operation is repeated thereafter.

As described above, in this embodiment, since the heat pipe is used as a means for collecting and transferring the solar heat, the heat collecting action of the solar heat collected by the heat collecting plate portion 8A and the heat collecting operation of the solar heat to the water in the storage tank 9 are performed. The heat transfer efficiency for transferring heat is improved as compared with the first configuration example.

Further, the one shown in FIG. 6C is a third structural example, which is the heat pipes 11a, 11 of the second structural example.
b is a special heat pipe (loop-shaped heat pipe) 12
The difference is that it is replaced with the above, but the other corresponding configurations are denoted by the same reference numerals as in FIG.

In the figure, reference numeral 12a is an evaporating portion which is a portion to which heat of the special heat pipe 12 provided in the heat collecting plate portion 8B is applied, and 12b is a special heat pipe which is a portion which releases heat in the storage tank 9. Of the condenser section, and K3 and K4 are the evaporator section 12a and the condenser section 12b as shown.
Is a pipe for connecting. It is assumed that the special heat pipe 12 is filled with a liquid made of a heat medium such as CFC.

In the solar heat collector 10B of this configuration example, the evaporating section 12a and the condensing section 12 of the special heat pipe 12 respectively arranged in the heat collecting plate section 8B and the storage tank 9 as described above.
Since the pipes K3 and K4 for connecting with b are communicated with each other, the enclosed liquid serving as the heat medium in the heat pipe 12 is evaporated in the evaporation part 12a by the irradiation of the heat collecting plate part 8B with the sun rays, so that the evaporation part Because of the pressure difference between the condenser 12a and the condenser 12b, the condenser 12b in the storage tank 9 moves to the condenser 12b via the pipe K4 to release heat. Therefore, the heat energy is used to store the heat in the storage tank 9. It heats the existing water to warm water.

The heat medium enclosed in the condensing part 12b, which has changed into a liquid state due to heat dissipation in the condensing part 12b, is returned to the inlet side of the evaporating part 12a via the pipe K3. Repeated.

In this embodiment, the special heat pipe 1 is used.
By installing No. 2, since it automatically circulates between the pipes K3 and K4, the feature is that the pump P2 in the second configuration example is not necessary and the heat collection and heat transfer efficiency is further improved. .

In the above-mentioned structure, the sunlight collecting device 5 constantly collects the sunlight rays from the heat collecting plate 8 (or 8A, 8A) of the solar heat collector 10 regardless of the change in the altitude and direction of the sun.
Since it is controlled to irradiate B) vertically, the heat collecting plate 8
The water in the storage tank is efficiently warmed by the solar heat that is heated by (8A, 8B), and the required warm water is obtained.

The hot water stored in the storage tank 9 can be freely used by opening a hot water faucet (not shown) in the building through the pipe H, but as a result, the hot water in the storage tank 9 is reduced. At this time, it is desirable that the tap water be automatically supplied to the storage tank 9 so that the hot water in the storage tank 9 always maintains a predetermined amount.

For this purpose, although not shown, for example, a low position detecting level sensor and a high position detecting level sensor are provided in the storage tank 9, and a solenoid valve is arranged in the pipe W to set the low position. When the level sensor for detection operates, the solenoid valve is opened to supply tap water to the storage tank 9, and when the level sensor for high position detection operates, the solenoid valve is closed to remove tap water. It is only necessary to add a configuration for stopping the supply.

Second Embodiment: FIG. 4 is a vertical sectional front view of a main part including a building showing a second embodiment of the solar heat collector of the present invention.

In the figure, the components corresponding to those of the first embodiment are designated by the same reference numerals as those in FIG. 1 and their description is omitted.

Reference numeral 7A is a reflecting mirror as a light refracting means, and this reflecting mirror 7A is arranged at the emitting portion of the optical duct 7. In addition,
A prism may be arranged instead of the reflecting mirror 7A.

Further, the daylighting device 6 is constructed as shown in FIG. 2 as in the case of the first embodiment.

The present embodiment is different from the first embodiment in that a solar heat collecting device having a structure in which a heat collecting plate portion and a storage tank are separated is used, and the heat collecting plate portion is different. 8C is disposed on the outer wall 4 of the building below the daylighting device 6 of the sunlight daylighting device 5, and the sunlight emitted from the daylighting device 6 in a certain direction is arranged in the light duct 7 with a reflecting mirror 7A (or a prism). Therefore, the sun rays are reflected and introduced into the heat collecting plate portion 8C.

A storage tank 9 is a pipe J which will be described later.
1 and J2 connect the heat collecting plate 8C and the storage tank 9 to form a solar heat collector 10A. As the solar pyroheater in this case, all of the first to third configuration examples in the first embodiment can be applied, but here, the case of the first configuration example in FIG. 3A will be described. To do.

J1 is a pump P for circulating water from the pipe M2 in the storage tank 9 to the pipe M1 in the heat collecting plate portion 8C.
Pipe for returning through 3, J2 is pipe M1 in the heat collecting plate 8C
Is a pipe for supplying hot water to the pipe M2 in the storage tank 9.

Incidentally, W is a pipe for supplying tap water, and H is a pipe for taking out hot water obtained by the solar heat collector 10A for supplying it into the building.

The solar heat collector 10A according to the present embodiment has almost the same structure and the same function as those of the first embodiment, but it receives sunlight. By providing the heat plate portion separately from the storage tank 9 along the outer wall of the building, it is easy to increase the area of the heat collecting plate portion. For this reason, although the length of the portion of the pipe between the storage tank and the heat collecting plate portion becomes slightly longer, the heat collection amount of sunlight can be increased.

In each of the above-mentioned embodiments, FIG.
As shown in FIG. 2, the application example of the present invention is shown as a building 1 having a roof portion instead of a roof such as a building or an apartment, but the present invention is limited to such a building. Of course, it can also be applied to a building with a normal roof.

When the present invention is applied to a building having such a roof, the solar lighting device should be provided in the roof eaves of the building, which are usually in the shade. You can do it.

[0062]

Since the solar heat collecting apparatus of the present invention is constructed as described above, it has the following excellent effects. (1) Instead of placing a heavy solar collector containing a storage tank on the roof of a building as in the conventional one, where the direct sunlight of the sun normally hits above the place where the building is normally shaded. Since it is sufficient to install a relatively lightweight solar lighting device, there is no need to worry about damaging the roof, and installation work can be done in a short time. (2) Also, in the case where the heat collecting plate part of the solar heat collector is separated from the storage tank and installed along the outer wall, the space near the building should be the storage tank space. Since the area of the heat plate is large because it is arranged along the outer wall, the heat collection amount of sunlight can be greatly increased and the floor space of the storage tank can be reduced accordingly.

In this structure, since the distance from the storage tank installed on the ground, which communicates with the heat collecting plate, is short, the circulating water and the liquid filled in the heat pipe can be sufficiently circulated by the pump of the integrated type. Is. (3) The present invention collects the sunlight efficiently collected from the sunlight collecting device through the solar heat collector to heat the water stored in the storage tank to warm water. A method of using a water pipe may be used as a means for collecting and transferring heat of the heat. However, if a heat pipe is used, the heat collecting action of solar heat collected by the heat collecting plate portion 8A and the water in the storage tank 9 The efficiency of heat transfer to heat is improved.

Further, if the heat collecting plate portion of the solar heat collector and the storage tank are arranged with an evaporating portion and a condensing portion of a special heat pipe (loop-shaped heat pipe) which are connected by piping, Compared with the structure that circulates water with a pipe, the electric power used for the pump is unnecessary and energy can be saved. (4) Further, as a solar light collecting device for irradiating the heat collecting plate portion of the solar heat collecting device of the present invention, it is configured to always irradiate sunlight in a constant direction regardless of changes in altitude and direction of sunlight. By doing so, sunlight can be efficiently extracted, so it is possible to install each component of the solar heat collector using the space in the north part of the building, which has not been used before. It has the advantage that it can be used for daylighting and solar power generation for outdoor use, and the space on the north side can be used for indoor hot water supply.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of a main part showing a first embodiment of a solar heat collector of the present invention.

FIG. 2 is a vertical sectional front view showing an example of a sunlight collecting device used for the solar heat collecting apparatus of the present invention.

FIG. 3 (A) is a perspective view showing a first configuration example of a solar heat collector of the present invention, and FIG. 3 (B) is a perspective view showing a second configuration example of a solar heat collector of the present invention. FIG. 1C is a perspective view showing a third configuration example of the solar heat collector of the present invention.

FIG. 4 is a vertical sectional front view of a main part showing a second embodiment of the solar heat collector of the present invention.

FIG. 5 (A) is a vertical sectional front view showing an arrangement configuration of a solar heat collector of a conventional example, and FIG. 5 (B) is a vertical sectional front view of a main part of the solar heat collector.

[Explanation of symbols]

 1: Building 5: Sunlight collecting device 6: Lighting device 7: Light duct 7A: Reflecting mirror (light refracting means) 8, 8A, 8B, 8C: Heat collecting plate section 9: Storage tank 10, 10A, 10B: Solar heat collecting Heaters 11a and 11b: Heat pipe 12: Special heat pipe (loop-shaped heat pipe) P1 to P3: Pump

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location F24J 2/44 F24J 2/44 A F28D 15/02 F28D 15/02 X (72) Inventor Kazuo Takahashi Sanyo Denki Co., Ltd. 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture

Claims (6)

[Claims] 1. A sunlight collecting device provided in a place where direct sunlight of the sun hits above a place where a building is normally shaded,
A solar heat collector consisting of a heat collecting plate portion and a storage tank provided along the outer wall of the building corresponding to the lower part of the sunlight collecting device is provided, and the sunlight collected by the sunlight collecting device is used for the solar collector. A solar heat collector, characterized in that hot water is obtained from the solar heat collector by irradiating the heat collector plate. 2. A solar lighting device provided in a place where the direct sunlight of the sun hits usually above a place where the building is shaded, and a reflecting mirror or prism provided on the emission side of the solar lighting device. And a heat collecting plate part of the solar heat collector having a structure in which the heat collecting plate part and the storage tank are separated from each other, and the storage tank is provided along the outer wall of the building. Provided on the ground, the sunlight collected from the sunlight collecting device is refracted by the light refracting means to irradiate the heat collecting plate portion of the solar heat collector, and hot water is obtained by the solar heat collector. A solar heat collector. 3. In the solar heat collector, a pipe for circulating hot water arranged on the heat collecting plate portion is communicated with the inside of a storage tank, and water enclosed in the pipe is circulated by such a path. In this way, by heating the water passing through the pipe built in the heat collecting plate portion by the irradiation of sunlight, the heat quantity of the hot water circulating in the pipe which is heated to be hot water is utilized. 3. The solar heat collecting apparatus according to claim 1, wherein the water returned to the storage tank is heated into hot water. 4. The solar heat collector has a first header serving as a condensing portion of the heat pipe and a second header serving as an evaporating portion of the heat pipe, which are arranged in the heat collecting plate portion and the storage tank, respectively. These headers are communicated with each other through pipes, and water enclosed in these pipes is circulated so that water passing through the pipes contained in the heat collecting plate portion of these pipes is , The heat of the first header of the heat pipe is heated by the irradiation of the sun rays to become hot water, and when the water passes through the second header, the heat stored in the storage tank is used to dissipate the water stored in the storage tank. The solar heat collector according to claim 1 or 2, wherein the solar heat collector is heated to form hot water. 5. The solar heat collector radiates heat and a vaporization part which is a part to which heat of a loop-shaped heat pipe (hereinafter referred to as a special heat pipe) is applied to the heat collecting plate part and the storage tank. Each condensing part is arranged,
The solar heat collected by irradiating the heat collecting plate section with sunlight is used to remove the water stored in the storage tank by using the energy when the heat is released as latent heat from the condensing section of the special heat pipe. The solar heat collector according to claim 1 or 2, wherein the solar heat collector is heated to form hot water. 6. The sunlight collecting device includes at least one or more rotatable flat plate prisms and control means such as a microcomputer for controlling the rotation of the flat plate prisms, and the control device controls the prisms of the flat plate prisms. The solar heat collector according to any one of claims 1 to 5, wherein the angle is controlled to an appropriate prism angle in accordance with the operation of the sun so that the light beam is always emitted in a constant direction on the emission side. apparatus.