Solar collector having independent angle-adjustable structure

Abstract

The present invention relates to a solar collector having an independent angle-adjustable structure. The present invention comprises: a support means for attaching a condensing mirror; a condensing mirror attachment plate; an elastic means; and a condensing mirror.

Description

Solar collector with independent angle adjustment structure

[0001] The present invention relates to a solar collector having an independent angle-adjusting structure that allows the angles of solar collector mirrors to be independently adjusted according to the seasonal altitude or hourly position of the sun.

[0002] In general, solar thermal power generation technology refers to a technology that absorbs radiant light from the sun, converts the absorbed radiant light into heat energy, and then uses it for cooling or heating, heat consumed throughout industrial processes, or power generation using heat.

[0003] Solar thermal power generation systems can be categorized as passive and active, depending on the presence or absence of a heat transfer device. Passive systems primarily utilize building structures like windows and walls, such as greenhouses and tromwalls, to collect solar heat. Active systems, on the other hand, install a separate concentrator and use a heat transfer device, such as a pump, to concentrate solar heat. These active systems are also called solar thermal power generation systems, and the core component of these systems is the concentrator, which collects sunlight.

[0004] Depending on their function, these types of concentrators can be classified into flat plate concentrators, vacuum tube concentrators, PTC (Parabolic Trough Concentrator) type concentrators, and dish type concentrators.

[0005] Among the concentrators listed above, the most commonly used dish-type concentrator is generally shaped like a concave dish, reflects sunlight to a focal point, and also circulates a heat medium at the focal point to heat the heat medium, and then generates electricity from the heat of the heat medium or uses it as an energy source for heating and cooling.

[0006] As a prior art related to a dish-type collector, a "dish-type solar collector" was proposed in Korean Patent Publication No. 10-2011-0037325. The dish-type solar collector is a technology that enables precise automatic control without a separate control device by automatically adjusting the opening and closing area of ​​the inlet cover by its own weight in response to changes in the sun's elevation angle.

[0007] However, according to the above-mentioned prior art, the phenomenon of sunlight being reflected, refracted, or scattered inside the cone-shaped collector occurred intermittently, which resulted in a rapid decline in the light collection efficiency.

[0008] The technical problem of the present invention is to provide a solar collector having an independent angle-adjustable structure capable of maximizing the solar collection efficiency by installing the solar collector's light-collecting mirrors in a stepped manner and individually adjusting the inclination of each light-collecting mirror installed in a stepped manner according to the sun's seasonal altitude or hourly position.

[0009] A solar collector having an independent angle-adjustable structure according to a first embodiment of the present invention for solving a technical problem is a solar collector (100) that receives sunlight and emits it to a corresponding focus position, wherein a plurality of unit modules forming a stepped surface (110a) that gradually decreases in height from the periphery to the center are installed in a circular manner adjacent to each other on the upper surface of the solar collector (100) to form a dish shape; a plurality of collecting mirror attachment plates (130) that are attached to a portion of the upper surface of the collecting mirror attachment support means (110) and forming the stepped surface (110a) so as to be angle-adjustable, wherein an upper edge portion is fastened to the upper surface of the collecting mirror attachment support means (110) through a first bolt (132) and a lower edge portion is fastened to the upper surface of the collecting mirror attachment support means (110) through a second bolt (134); It is characterized by including an elastic means (150) that is fitted into the outer surface of a second bolt (134) connecting the lower surface of the above-mentioned collecting mirror attachment plate (130) and the upper surface of the above-mentioned collecting mirror attachment support means (110) to space the lower surface of the above-mentioned collecting mirror attachment plate (130) and the upper surface of the above-mentioned collecting mirror attachment support means (110) apart from each other, thereby allowing the angle of the above-mentioned collecting mirror attachment plate (130) to be adjusted; and a collecting mirror (170) that is attached to the upper surfaces of the above-mentioned plurality of collecting mirror attachment plates (130) so as not to overlap each other.

[0010] Secondarily, according to a solar collector having an independent angle adjustment structure according to a second embodiment of the present invention for solving a technical problem, the elastic means (150) is made of a spring made of a metal or non-metal material, and the spring is arranged so that one end is supported on the lower surface of the collecting mirror attachment plate (130) and the other end is supported on the upper surface of the collecting mirror attachment support means (110), so that the relative inclination of the collecting mirror attachment plate (130) with respect to the collecting mirror attachment support means (110) can be adjusted according to the degree of fastening of the second bolt (134).

[0011] In the same context as the second embodiment, the light collecting mirror attachment plate (130) may be arranged so that the angle of inclination gradually increases in the radial direction from the center of the circle of the solar collector (100) toward the circumference.

[0012] Additionally, according to a solar collector having an independent angle adjustment structure according to the third embodiment of the present invention for solving a technical problem, the collecting mirror (170) can be formed in a prism shape so as to increase the angle of sunlight reception and energy production efficiency.

[0013] Secondarily, according to the solar collector having an independent angle adjustment structure according to the fourth embodiment of the present invention for solving the technical problem, when the stepped surface (110a) is composed of seven surfaces, the highest first surface has an inclination angle of 27.0 to 27.9° with respect to the ground (v), the second surface has an inclination angle of 25.0 to 25.9° with respect to the ground (v), the third surface has an inclination angle of 22.5 to 23.5° with respect to the ground (v), the fourth surface has an inclination angle of 21.0 to 21.9° with respect to the ground (v), the fifth surface has an inclination angle of 18.0 to 18.9° with respect to the ground (v), the sixth surface has an inclination angle of 16.0 to 16.9° with respect to the ground (v), and the lowest The seventh side may have an inclination angle of 12.5 to 13.5° with respect to the ground (v).

[0014] Additionally, according to a solar collector having an independent angle adjustment structure according to the fifth embodiment of the present invention for solving a technical problem, the support means (110) for attaching the collecting mirror may be composed of a one-side support (112) and an other-side support (114) arranged at a certain distance from the one-side support (112).

[0015] The solar collector having an independent angle-adjustable structure according to the present invention has the effect of maximizing the solar collection efficiency by installing the solar collector's light-collecting mirrors in a stepped manner and configuring the tilt of each light-collecting mirror installed in a stepped manner to be individually adjusted according to the sun's seasonal altitude or hourly position, etc.

[0016] In addition, the solar collector having an independent angle-adjustable structure according to the present invention has the effect of further improving the light collecting efficiency of solar light by accurately reflecting sunlight incident from the radial direction of the solar collector to the corresponding focus position.

[0017] FIG. 1 is a perspective view showing a partial excerpt of the structural form of a solar collector having an independent angle-adjusting structure according to an embodiment of the present invention.

[0018] FIG. 2 is an exploded perspective view showing a partial excerpt of the structural form of a solar collector having an independent angle adjustment structure according to an embodiment of the present invention.

[0019] FIG. 3 is a cross-sectional side view showing a partial excerpt of the structural form of a solar collector having an independent angle-adjusting structure according to an embodiment of the present invention.

[0020] FIG. 4 is a drawing showing the state of use of a solar collector having an independent angle adjustment structure according to an embodiment of the present invention.

[0021] The best form for carrying out the present invention is a solar collector (100) that receives sunlight and emits it to a corresponding focus position, wherein a plurality of unit modules forming a stepped surface (110a) whose height gradually decreases from the periphery to the center are installed in a circular manner adjacent to each other on the upper surface of the solar collector (100) to form a dish shape; a plurality of light collecting mirror attachment plates (130) that are attached to the upper surface of the light collecting mirror attachment support means (110) and the portion forming the stepped surface (110a) so as to be angle-adjustable, wherein an upper corner portion is fastened to the upper surface of the light collecting mirror attachment support means (110) through a first bolt (132) and a lower corner portion is fastened to the upper surface of the light collecting mirror attachment support means (110) through a second bolt (134); It comprises an elastic means (150) that is fitted into the outer surface of a second bolt (134) connecting the lower surface of the above-mentioned collecting mirror attachment plate (130) and the upper surface of the above-mentioned collecting mirror attachment support means (110) to space the lower surface of the above-mentioned collecting mirror attachment plate (130) and the upper surface of the above-mentioned collecting mirror attachment support means (110) apart from each other, thereby allowing the angle of the above-mentioned collecting mirror attachment plate (130) to be adjusted; and a collecting mirror (170) that is attached to the upper surfaces of the above-mentioned plurality of collecting mirror attachment plates (130) so as not to overlap each other.

[0022] Hereinafter, the form for implementing the present invention will be described in detail based on the drawings.

[0023] FIG. 1 is a perspective view showing a partial excerpt of the structural form of a solar collector having an independent angle adjustment structure according to an embodiment of the present invention, and FIG. 4 is a drawing showing a state of use of a solar collector having an independent angle adjustment structure according to an embodiment of the present invention.

[0024] Referring to FIGS. 1 and 4, the solar collector having an independent angle-adjusting structure of the present invention is broadly composed of a support means (110) for attaching a collecting mirror, a collecting mirror attachment plate (130), an elastic means (150), and a collecting mirror (170).

[0025] According to an embodiment of the present invention, a support means (110) for attaching a collecting mirror is composed of a one-side support (112) and an other-side support (114) spaced apart from the one-side support (112) by a certain distance, and unit modules forming a stepped surface (110a) whose height gradually decreases from the outer edge to the center are installed in a plurality of circular adjacent units on the upper surface of a solar collector (100) as shown in the drawing of FIG. 4, and the overall shape is similar to a dish shape.

[0026] At this time, the one-side support (112) and the other-side support (114) can be formed by a metal plate, a plastic plate, or other suitable material, such as an FRP (Fiberglass Reinforced Plastic) molded plate.

[0027] Meanwhile, according to the above-described configuration, the light collecting mirror attachment plate (130) to be described later is arranged so that the tilt angle gradually increases in the radial direction from the center of the circle of the solar collector (100) toward the circumference, or so that the tilt angle gradually decreases in the radial direction from the circle toward the center of the circle of the solar collector (100).

[0028] FIG. 2 is an exploded perspective view showing a partial excerpt of the structural form of a solar collector having an independent angle adjustment structure according to an embodiment of the present invention.

[0029] Referring to FIG. 2, the light collecting mirror attachment plate (130) according to the present invention is attached to a portion forming a stepped surface (110a) that is the upper surface of the light collecting mirror attachment support means (110) so as to be angle-adjustable, and the upper edge portion is fastened to the upper surface of the light collecting mirror attachment support means (110) through a first bolt (132), and the lower edge portion is fastened to the upper surface of the light collecting mirror attachment support means (110) through a second bolt (134), so as to be provided in multiple pieces.

[0030] In addition, the elastic means (150) according to the present invention is fitted to the outer surface of the second bolt (134) connecting the lower surface of the collecting mirror attachment plate (130) and the upper surface of the collecting mirror attachment support means (110), thereby spacing the lower surface of the collecting mirror attachment plate (130) and the upper surface of the collecting mirror attachment support means (110) apart from each other, thereby allowing the angle of the collecting mirror attachment plate (130) to be adjusted.

[0031] To this end, it is preferable that the spring (150) be made of a spring having a repellent force made of a metal or non-metal material, and the spring is arranged so that one end is supported on the lower surface of the collecting mirror attachment plate (130) and the other end is supported on the upper surface of the supporting means (110) for attaching the collecting mirror, so that the relative inclination of the collecting mirror attachment plate (130) with respect to the supporting means (110) for attaching the collecting mirror can be adjusted depending on the degree of fastening of the second bolt (134).

[0032] For example, the worker first uses the first bolt (132) to fasten and fix the upper edge of the collecting mirror attachment plate (130) attached to the upper surface of the supporting means (110) for attaching the collecting mirror, and then adjusts the degree of fastening of the second bolt (134), thereby easily adjusting the inclination angle of the collecting mirror attachment plate (130). At this time, it is preferable that the worker derives the seasonal altitude of the sun or the hourly position of the sun before adjusting the degree of fastening of the second bolt (134), and adjusts the degree of fastening of the second bolt (134) based on the derived value.

[0033] According to the configuration of the present invention as described above, the angles of all the light-collecting mirror attachment plates (130) can be individually adjusted, so that the advantage of being able to collect sunlight at an accurate focal point arises.

[0034] In other words, the solar light collecting efficiency (light collecting) can be increased by accurately reflecting the sunlight incident in the radial direction of the solar collector (100) of the present invention to the corresponding focus position.

[0035] Meanwhile, the light collecting mirror (170) according to the present invention is attached to the upper surface of a plurality of light collecting mirror attachment plates (130) so as not to overlap each other.

[0036] At this time, the above-mentioned light collecting mirror (170) can be attached to the upper surface of the above-mentioned light collecting mirror attachment plate (130) using an adhesive such as silicone.

[0037] In addition, the above-mentioned light collecting mirror (170) is preferably composed of a mirror, but is not limited thereto, and may be composed of a metal plate made of a material capable of reflecting sunlight, or may be composed of plates to which a reflective paint is applied or a reflective film is attached to the light collecting mirror (170).

[0038] According to a further embodiment of the present invention, the collecting mirror (170) may be formed in a prism shape to increase the angle of sunlight reception and energy production efficiency. For example, the surface of the collecting mirror may be provided with a film formed by embossing or molding, or by other suitable methods such as etching or ablation.

[0039] Meanwhile, according to one embodiment of the present invention, when the stepped surface (110a) is composed of seven surfaces, the highest first surface has an inclination angle of 27.0 to 27.9° with respect to the ground (v), the second surface has an inclination angle of 25.0 to 25.9° with respect to the ground (v), the third surface has an inclination angle of 22.5 to 23.5° with respect to the ground (v), the fourth surface has an inclination angle of 21.0 to 21.9° with respect to the ground (v), the fifth surface has an inclination angle of 18.0 to 18.9° with respect to the ground (v), the sixth surface has an inclination angle of 16.0 to 16.9° with respect to the ground (v), and the lowest seventh surface has an inclination angle of 12.5 to It could be 13.5°.

[0040] More specifically, when calculating the inclination angle with respect to the ground (v), when the upper position value of the condenser mirror (170) is defined as x2 and the lower position value as x1, and the highest altitude value of the sun is defined as y2 and the lowest altitude value as y1 (however, in a two-dimensional plane state), the relative inclination (m) of the condenser mirror attachment plate (130) can be calculated by the formula m = y2- y1 / x2- x1.

[0041] [Mathematical Formula 1]

[0042]

[0043] At this time, the slope (m) value derived by the above formula can be defined as tanθ. That is, tanθ is the differential value of Δy / Δx, and as a result, the optimal slope angle of the light collecting mirror attachment plate (130) according to the solar altitude is m' = y2- y1 / x2- x1 + can be derived by the formula of tanθ.

[0044] [Equation 2]

[0045]

[0046] FIG. 3 is a cross-sectional view showing a partial excerpt of the structural form of a solar collector having an independent angle-adjusting structure according to an embodiment of the present invention, and is a drawing showing the inclination angle for each stepped surface (110a).

[0047] Referring to FIG. 3, the tilt angles derived by the above-described formula may be such that the highest first surface has a tilt angle of 27.7° with respect to the ground (v), the next second surface has a tilt angle of 25.5° with respect to the ground (v), the next third surface has a tilt angle of 22.9° with respect to the ground (v), the next fourth surface has a tilt angle of 21.6° with respect to the ground (v), the next fifth surface has a tilt angle of 18.3° with respect to the ground (v), the next sixth surface has a tilt angle of 16.3° with respect to the ground (v), and the lowest seventh surface has a tilt angle of 12.9° with respect to the ground (v).

[0048] Of course, since the above inclination angle is a result value calculated after setting a certain standard value, the inclination angle value may change slightly if it is affected by various environmental factors such as installation area or seasonal changes.

[0049] In addition, the formula as described above is established to derive the desirable inclination angle of the present invention, and is not necessarily limited to the formula, and various formulas that conform to the concept of entropy or disorder according to the second law of thermodynamics can be applied to derive the angle value of the inclination.

[0050] For example, based on the premise that the total amount of energy does not change, it can be configured to incident sunlight within an angle range of 90° to 180° and to emit sunlight within an angle range of 0° to 90°.

[0051] The present invention was created to maximize the solar light collection efficiency by individually adjusting the inclination of each of the condensing mirrors installed in a stepped manner according to the seasonal altitude or hourly position of the sun, and is expected to be usefully used in the relevant technical field as well as being applicable in various ways in adjacent technical fields.

Claims

1. In a solar collector (100) that receives sunlight and emits it to a corresponding focus position, A support means (110) for attaching a collecting mirror to form a dish shape by installing a plurality of unit modules in a circular manner adjacent to each other on the upper surface of the solar collector (100) to form a stepped surface (110a) that gradually decreases in height from the periphery to the center; A plurality of light collecting mirror attachment plates (130) are attached so as to be angle-adjustable to a portion forming a step surface (110a) of the support means (110) for attaching the light collecting mirror, wherein an upper corner portion is fastened to the upper surface of the support means (110) for attaching the light collecting mirror through a first bolt (132) and a lower corner portion is fastened to the upper surface of the support means (110) for attaching the light collecting mirror through a second bolt (134); An elastic means (150) that is fitted into the outer surface of the second bolt (134) connecting the lower surface of the above-mentioned light-collecting mirror attachment plate (130) and the upper surface of the above-mentioned light-collecting mirror attachment support means (110) and allows the angle of the above-mentioned light-collecting mirror attachment plate (130) to be adjusted while spacing the lower surface of the above-mentioned light-collecting mirror attachment plate (130) and the upper surface of the above-mentioned light-collecting mirror attachment support means (110) apart from each other; and A solar collector having an independent angle-adjustable structure, characterized by including a collecting mirror (170) attached to the upper surface of the plurality of collecting mirror attachment plates (130) so as not to overlap each other.

2. In paragraph 1, The above-mentioned spring means (150) is made of a metal or non-metallic spring, A solar collector having an independent angle adjustment structure, characterized in that the spring is arranged so that one end is supported on the lower surface of the collecting mirror attachment plate (130) and the other end is supported on the upper surface of the collecting mirror attachment support means (110), so that the relative inclination of the collecting mirror attachment plate (130) with respect to the collecting mirror attachment support means (110) is adjusted according to the degree of fastening of the second bolt (134).

3. In paragraph 2, A solar collector having an independent angle-adjustable structure, characterized in that the above-mentioned light-collecting mirror attachment plate (130) is arranged so that the angle of inclination gradually increases in the radial direction from the circular center of the solar collector (100) toward the circumference.

4. In paragraph 1, A solar collector having an independent angle-adjustable structure, characterized in that the above-mentioned light-collecting mirror (170) is formed in a prism shape to increase the angle of sunlight reception and energy production efficiency.

5. In paragraph 1, In case the above-mentioned stepped surface (110a) is composed of 7 surfaces, the highest first surface has an inclination angle of 27.0 to 27.9° with respect to the ground (v), the next second surface has an inclination angle of 25.0 to 25.9° with respect to the ground (v), the next third surface has an inclination angle of 22.5 to 23.5° with respect to the ground (v), the next fourth surface has an inclination angle of 21.0 to 21.9° with respect to the ground (v), the next fifth surface has an inclination angle of 18.0 to 18.9° with respect to the ground (v), the next sixth surface has an inclination angle of 16.0 to 16.9° with respect to the ground (v), and the lowest seventh surface has an inclination angle of 12.5 to 13.5° with respect to the ground (v). A solar collector with an angle-adjustable structure.

6. In paragraph 1, A solar collector equipped with a collecting mirror having an independent angle-adjustable structure, characterized in that the support means (110) for attaching the collecting mirror is composed of a one-side support (112) and an other-side support (114) arranged at a certain distance from the one-side support (112).

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