JP5122665B2 - Condensing device and condensing heat storage device using this condensing device - Google Patents

Description

The present invention relates to a condensing device that condenses sunlight on a light receiving panel using an optical system such as a reflecting mirror , and a condensing heat storage that stores heat generated by condensing sunlight using the condensing device. Relates to the device.

Conventionally, as a device for storing solar energy, for example, a water heater is known. This water heater is generally installed on a roof or the like, and is configured such that a pipe accommodated in a light receiving panel of the water heater receives sunlight to warm water in the pipe.
In such a conventional device for storing solar energy, it was not fixed to follow the movement of the sun, but was simply fixedly installed on the roof etc., so the ability to collect sunlight was insufficient. It was not possible to efficiently collect and store heat. In addition, it is configured to warm the water in the pipe by sunlight that falls directly on the pipe accommodated in the light receiving panel, so that the ability to collect sunlight is insufficient, and it is efficiently collected. Could not store heat.

In order to solve such a problem, Patent Document 1 proposes a condensing heat storage device including an optical system such as a reflecting mirror. The condensing heat storage device shown in this patent document 1 is shown in FIG. 7, and will be described based on FIG.
As shown in FIG. 7, the incident solar light beam L is collected by the parabolic reflection main mirror 100, then converged and reflected again by the plane secondary mirror 101, directed downward, and further reflected by the plane oblique mirror 102 at a right angle. The focal point 103 is formed.

  The light beam L converged by the optical system forms a focal point 103 inside a heating element 104 made of a ceramic material placed at the deepest part, and heat generated by heating the heating element 104 is stored in the heat storage and holding furnace 110. Keep heat and heat. Further, a spiral conduit 105 is disposed in the space between the heating element 104 and the furnace inner wall, and the cold water poured from one water supply port 105a is heated inside the spiral conduit 105 in the furnace, and one hot water discharge port 105b. It is taken out more.

  The mechanism for driving the optical system is a theodolite having two drive shafts, an elevation angle adjusting shaft 106 and a horizontal rotation shaft 107. The parabolic reflecting mirror 100, the planar secondary mirror 101, and the planar oblique mirror 102 are fixed to the inner frame 108, and move together as the elevation angle adjusting shaft 106 and the elevation angle adjusting shaft 109 rotate. In addition, the heat storage and heating furnace 110 installed at the position of the focal point 103 is fixed to the outer frame 111, and the entire mechanism can be rotated horizontally by the horizontal rotating shaft 107 and the horizontal rotating shaft wheel 112.

In this way, by rotating the two axes of the elevation angle adjusting shaft 106 and the horizontal rotating shaft 107, the optical system is opposed to the sun moving every moment, and the focal point 103 of the optical system is always guided to the inside of the heat storage and heating furnace 110. Therefore, it is possible to efficiently collect and store heat. Moreover, since sunlight is condensed using an optical system, it is possible to efficiently collect and store heat.
In the figure, reference numeral 113 denotes a horizontal base, which is a flat plate base for smoothly driving the horizontal rotary shaft 112, and reference numeral 114 denotes a wheel, which freely moves and installs the entire mechanism. It is a wheel for movement for.

JP 2006-64356 A

By the way, in the condensing heat storage device ( condensing device) described in Patent Document 1, a planar secondary mirror 101 is disposed above the parabolic reflecting main mirror 100. Therefore, a part of the sunlight L is blocked by the flat secondary mirror 101 and reflected outward, and does not enter the apparatus. That is, of the sunlight L, sunlight that is not blocked by the planar secondary mirror 101 is incident on the parabolic reflecting main mirror 100, and then reflected by the planar secondary mirror 101 and the planar oblique mirror 102 and guided to the focal point 103.
Thus, in this condensing heat storage device ( condensing device) , sunlight blocked by the plane secondary mirror 101 (sunlight reflected outward) cannot be effectively used, and is more efficient. An apparatus capable of condensing light is desired.

The present invention has been made in order to solve the above technical problem, and it is possible to effectively utilize sunlight falling on the apparatus, and to collect the light more efficiently and to collect the light. An object of the present invention is to provide a condensing heat storage device using an optical device .

The light collecting device according to the present invention made to achieve the above object is a light collecting device for collecting sunlight on a light receiving panel. The light collecting panel is provided on a substrate, a light receiving panel provided on the substrate, and the substrate. A first reflector disposed outside the light receiving panel; a second reflector disposed on the base body and disposed in an upper space of the base body; and a motor for rotating the base body in a horizontal direction. And a motor for adjusting the elevation angle of the base body, the second reflector is disposed above the outer periphery of the light receiving panel, and sunlight from a direction perpendicular to the light receiving panel The sunlight received by the light receiving panel without being shielded by the reflecting plate and falling on the outside of the light receiving panel is reflected by the first reflecting plate and the second reflecting plate, and the reflected light is By the light receiving panel The light receiving panel is moved by the respective motors so that the light receiving panel faces the sun, and sunlight is incident on the light receiving panel from a vertical direction. It is said.

  In this way, sunlight from a direction perpendicular to the light receiving panel is received without being shielded by the second reflecting plate, and the sunlight that has fallen outside the light receiving panel is reflected by the first reflecting plate. In addition, since the light is reflected by the second reflecting plate and the reflected light is received by the light receiving panel, the light can be efficiently collected.

Here, the base is formed in a cross shape, the light receiving panel is provided at the center of the base, and the first reflector is provided outside the light receiving panel corresponding to each side of the light receiving panel. In addition, it is desirable that the second reflecting plate is disposed so as to surround the light receiving panel above the outer periphery of the light receiving panel.

Each of the motors is driven based on the output of the sensor, and the light receiving panel is preferably facing the sun.
Further, a solar cell panel is provided as the sensor on the upper surface of the second reflecting plate, and the respective light receiving panels are made solar by driving the respective motors so that the electrical outputs from the solar cell panels are the same. It is desirable to face directly.

Moreover, it is a condensing heat storage apparatus using the said condensing apparatus, Comprising: It is desirable to accommodate a medium in the said light reception panel, and to store heat in the said medium.
Here, a pipe is provided in the light receiving panel, a tank provided with a heat exchange pipe connected to the pipe is provided, water is accommodated in the tank, and a medium flowing through the heat exchange pipe is taken into the tank. It is desirable to exchange heat with water.
In addition, a solar cell panel is attached to the upper surface of the second reflecting mirror, a heater is provided in the tank, the heater is driven by electricity stored by the solar cell panel, and the water in the tank is It is desirable to keep warm.

ADVANTAGE OF THE INVENTION According to this invention, the sunlight which pours into an apparatus can be utilized effectively, and the condensing apparatus which can condense more efficiently, and the condensing heat storage apparatus using this condensing apparatus can be obtained. it can.

FIG. 1 is a cross-sectional view of a light collecting device and a light collecting heat storage device according to the present invention. FIG. 2 is a perspective view of a light collecting unit (optical system) of the light collecting device and the light collecting heat storage device shown in FIG. FIG. 3 is a side view showing the configuration of the second reflecting mirror (reflecting plate) . FIG. 4 is a plan view of a heat storage section of the condensing heat storage device. 5 is a cross-sectional view taken along the line II-II in FIG. FIG. 5 is an electric circuit block diagram. FIG. 7 is a cross-sectional view showing a conventional condensing heat storage device.

An embodiment of a light collecting device and a light collecting heat storage device according to the present invention will be described with reference to FIGS. 1 to 5. 1 is a sectional view of the light collecting device and the light collecting heat storage device according to the present invention (an arrow view from the II direction in FIG. 2), and FIG. 2 is the light collecting heat storage device ( collection device) shown in FIG. perspective view of the condensing portion of the light unit) (optical system), Figure 3 is a side view showing a configuration of a second reflecting mirror (reflector), 4 condenser heat storage device of a light receiving panel (condenser) FIG. 5 is a sectional view taken along line II-II in FIG. 4, and FIG. 6 is an electric circuit block diagram.

As shown in FIGS. 1 and 2, the base 2 of the light collecting device 1 is formed in a cross shape, and a rectangular light receiving panel 3 is provided at the center thereof. Further, first reflecting mirrors (first reflecting plates) 4, 5, 6, 7 are provided outside the light receiving panel 2 corresponding to the respective sides of the light receiving panel 3.
The upper surfaces of the first reflecting mirrors 4, 5, 6, and 7 are formed as so-called concave mirrors 4a, 5a, 6a, and 7a, and the first reflecting mirrors 4, 5, 6, and 7 are predetermined with respect to the base body 2. It is attached with an angle of inclination.

In addition, second reflecting mirrors (second reflecting plates) 8, 9, 10, and 11 are formed above the first reflecting mirrors 4, 5, 6, and 7 and the light receiving panel 3. The second reflecting mirrors 8 , 9, 10, and 11 are not disposed in the upper region of the light receiving panel 3, but are disposed so as to surround the light receiving panel 3 above the outer periphery of the light receiving panel 3. That is, the second reflecting mirrors 8, 9, 10, and 11 are arranged at positions where the sunlight L that is directly incident on the light receiving panel 3 (incident perpendicularly to the light receiving panel 3) is not blocked.
The second reflecting mirrors 8, 9, 10, and 11 are attached to the upper ends of the columns 12 to 19 that are erected from the base 2 as shown in FIGS.

  The second reflecting mirrors 8, 9, 10, and 11 reflect the sunlight L reflected by the first reflecting mirrors 4, 5, 6, and 7 so as to be incident on the light receiving panel 3. The lower surfaces of the reflecting mirrors 8, 9, 10, and 11 (surfaces on the first reflecting mirrors 4, 5, 6, and 7 side) are configured by convex mirrors 8a, 9a, 10a, and 11a. Moreover, solar cell panels 8b, 9b, 10b, and 11b are attached to the upper surfaces of the second reflecting mirrors 8, 9, 10, and 11, respectively.

As described above, since the first reflecting mirrors 4, 5, 6, and 7 and the second reflecting mirrors 8, 9, 10, and 11 are arranged, as shown in FIG. The vertically incident sunlight L enters the light receiving panel 3 without being blocked by these reflecting mirrors.
Further, the sunlight L falling on the outside of the light receiving panel 3 (sunlight L incident on the outside region of the light receiving panel 3) is reflected by the first reflecting mirrors 4, 5, 6, and 7, and the reflected light is the first. The light is reflected by the two reflecting mirrors 8, 9, 10, 11 (convex mirrors 8 a, 9 a, 10 a, 11 a) and enters the light receiving panel 3.
Therefore, the sunlight L poured on the outside of the light receiving panel 3 can be reflected to be guided to the light receiving panel 3, and solar energy can be used effectively.

  Furthermore, since the solar cell panels 8b, 9b, 10b, and 11b are provided on the upper surfaces of the second reflecting mirrors 8, 9, 10, and 11 as described above, the second reflecting mirrors 8, 9, and 10 are provided. , 11 can be used effectively. As these solar cell panels 8b, 9b, 10b, and 11b, existing solar cell panels can be used. As shown in FIG. 6, electricity generated by the solar cell panels 8b, 9b, 10b, and 11b is converted into a battery or the like ( (Not shown) is configured to store electricity.

Further, as shown in FIGS. 4 and 5, a pipe 20 bent a plurality of times is housed inside the light receiving panel 3. In particular, in order to accommodate the pipes 20 in the light receiving panel 3 with higher density, the pipes 20 are changed in height each time they are bent, that is, they are alternately changed in height every time the pipes 20 are bent. ing.
The pipe 20 is fitted to a plurality of heat transfer plates 21 (seven heat transfer plates in FIG. 4). Thus, since the pipe is in contact with the heat transfer plate 21, the medium in the pipe 20 can be heated more uniformly.

  As shown in FIG. 1, one end of the pipe 20 is connected to the other end of the pipe 20 via a bellows tube 22, a connecting tube 23, a heat exchange pipe 24, a connecting tube 23, and a bellows tube 22. ing. Inside the pipe 20, the bellows tube 22, the connecting tube 23, and the heat exchange pipe 24, for example, a medium such as oil or water is accommodated and heated in the light receiving panel 3, and the heated medium is circulated by the pump P2. Is configured to do.

The heat exchange pipe 24 is disposed at the bottom of the tank 25. The tank 25 includes, for example, a supply port 26 for supplying water, a lead-out port 27 for leading warmed water to the outside, and a pump P1 connected to the lead-out port 27.
In the figure, reference numeral 28 denotes a drain pipe for discharging water in the tank 25, and reference numeral 29 denotes an overflow pipe for discharging water when excessive water is supplied to the tank 25. Reference numerals 30 and 31 are valves.

For example, water is stored in the tank 25, and heat is exchanged with a stored (heated) medium, for example, oil, flowing through the heat exchange pipe 24.
That is, the heated oil is cooled by the water in the tank 25 and flows to the connecting pipe 23, the bellows pipe 22, and the pipe 20, and the oil is heated again in the light receiving panel. The heated (heat-stored) oil moves again to the heat exchange pipe 24, exchanges heat with the water in the tank 25, and stores the solar energy by using the water as hot water.
In this way, the water in the tank is finally heated through the medium in the pipe and stored as hot water, and the hot water is led out of the tank 25 by driving the pump P1 as necessary.

Further, as shown in FIG. 6, even if a heater 32 is provided in the tank 25 and the electricity of the battery 33 stored by the solar cell panels 8b, 9b, 10b, and 11b is used, the hot water in the tank 25 is kept warm. good. In this way, the temperature of the hot water in the tank 25 is kept at a substantially constant temperature even at night by heating with the heater 32 using the electricity of the battery 33 stored by the solar cell panels 8b, 9b, 10b, and 11b. Can be made.
As shown in FIG. 6, the battery 33 stored by the solar panels 8b, 9b, 10b, and 11b has an optical system (to be described later) adjusted to the sun movement via a switch 34 in addition to the drive source of the heater 32. It can be used as the drive source 35 of the motors 43 and 48 of the mechanism that follows the movement.

Further, the mechanism for driving the optical system (condensing system) in the condensing device 1 is a theodolite having two driving shafts, an elevation angle adjusting shaft 40 and a horizontal rotating shaft 41.
The neck 2 a provided on the lower surface of the base 2 is pivotally supported by an elevation angle adjusting shaft 40 with respect to a support frame 42 a provided on the support plate 42. The sprocket 44 is rotated by the motor 43 provided on the support plate 42 and the sprocket 46 provided on the base side (elevation angle adjusting shaft 40) is rotated via the chain 45, whereby the base body 2 is lifted. It is configured to swing around the adjustment shaft 40 and adjust the elevation angle.

  The support plate 42 is rotatably supported by a fixed frame 47 fixed to the upper portion of the tank 25. The motor 48 provided on the fixed frame 47 rotates the sprocket 49 to rotate the sprocket 51 provided on the support plate 42 side (horizontal rotating shaft 41) via the chain 50, whereby the support plate 42 is moved. It is configured to rotate horizontally around the horizontal rotation shaft 41 to adjust the direction.

As described above, the optical system (including the light receiving panel) is directly opposed to the sun that moves momentarily by the rotation of the two axes of the elevation angle adjusting shaft 40 and the horizontal rotating shaft 41 by the motors 43 and 48, and the light receiving panel 3 Is adjusted so that the sunlight L enters from the vertical direction. The driving of the motors 43 and 48 is adjusted by the output of the sensor 52 so that the optical system (including the light receiving panel) faces the sun.
As a result, the sunlight L is directly incident on the light receiving panel 3 and the sunlight L poured on the outside of the light receiving panel 3 is converted into the first reflecting mirrors 4, 5, 6, 7 and the second reflecting mirrors 8, 9,. 10 and 11 can be incident on the light receiving panel 3, so that the sunlight L falling on a wider area can be efficiently collected and incident on the light receiving panel 3.

Further, since the solar cell panels 8b, 9b, 10b, and 11b are installed on the upper surfaces of the second reflecting mirrors 8, 9, 10, and 11, the sunlight L falling on the upper surfaces of the second reflecting mirrors 8, 9, 10, and 11 Can be used effectively.
Furthermore, the solar cell panels 8b, 9b, 10b, and 11b on the upper surfaces of the second reflecting mirrors 8, 9, 10, and 11 can be used as driving sensors for the motors 43 and 48. That is, when the optical system faces the sun, the same electrical output can be obtained from the solar cell panels 8b, 9b, 10b, and 11b. And by driving the motors 43 and 48 so that the electrical outputs from the solar cell panels 8b, 9b, 10b, and 11b are the same, the optical system can always be directly opposed to the sun. In this case, the sensor 52 can be omitted.
In addition, although the case where the electric power of the said solar cell panel was used for the heater 32 or the motors 43 and 48 was demonstrated, it is not limited to this, You may use for another use.

DESCRIPTION OF SYMBOLS 1 Light condensing device 2 Base | substrate 3 Light reception panel 4,5,6,7 1st reflective mirror (1st reflecting plate)
8, 9, 10, 11 Second reflector (second reflector)
8b, 9b, 10b, 11b Solar panel 12, 13, 14, 15, 16, 17, 18, 19 Post 20 Pipe 24 Heat exchange pipe 25 Tank 32 Heater 33 Battery 34 Switch 35 Motor drive

Claims (7)

In a condensing device that condenses sunlight on the light receiving panel,
A base, a light receiving panel provided on the base, a first reflecting plate provided on the base and disposed outside the light receiving panel, and provided on the base and disposed in an upper space of the base A second reflector, a motor that rotates the base in the horizontal direction, and a motor that adjusts the elevation angle of the base;
The second reflecting plate is disposed above the outer periphery of the light receiving panel, and sunlight from a direction perpendicular to the light receiving panel is not shielded by the second reflecting plate, but is received by the light receiving panel. Sunlight received and falling outside the light receiving panel is reflected by the first reflecting plate and the second reflecting plate, and the reflected light is received by the light receiving panel.
A condensing device configured to cause the light receiving panel to face the sun by moving the base by each of the motors so that sunlight is incident on the light receiving panel from a vertical direction. The base is formed in a cross shape, the light receiving panel is provided in the center of the base,
The first reflecting plate is provided outside the light receiving panel corresponding to each side of the light receiving panel, and the second reflecting plate surrounds the light receiving panel above the outer periphery of the light receiving panel. The condensing device according to claim 1, wherein the light collecting device is arranged in a vertical direction. The condensing device according to claim 1, wherein each of the motors is driven based on an output of a sensor, and the light receiving panel faces the sun. A solar cell panel is provided as the sensor on the upper surface of the second reflecting plate, and each of the motors is driven so that the electrical output from the solar cell panel is the same, so that the light-receiving panel is aligned with the sun. The light collecting device according to claim 3, wherein the light collecting device is paired. A light collecting heat storage device using the light collecting device according to any one of claims 1 to 4, wherein a medium is accommodated in the light receiving panel and heat is stored in the medium. Light heat storage device. A pipe is provided in the light receiving panel, a tank provided with a heat exchange pipe connected to the pipe is provided, and water is stored in the tank.
6. The condensing heat storage device according to claim 5, wherein heat is exchanged from a medium flowing through the heat exchange pipe to water in the tank. A solar cell panel is attached to the upper surface of the second reflecting mirror, and a heater is provided in the tank.
The condensing heat storage device according to claim 6, wherein the heater is driven by electricity stored by the solar cell panel to keep the water in the tank warm.

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